diff --git a/EgwCoreLib.BlazorTest/EgwCoreLib.BlazorTest.csproj b/EgwCoreLib.BlazorTest/EgwCoreLib.BlazorTest.csproj index 6cd8281..282d67c 100644 --- a/EgwCoreLib.BlazorTest/EgwCoreLib.BlazorTest.csproj +++ b/EgwCoreLib.BlazorTest/EgwCoreLib.BlazorTest.csproj @@ -13,6 +13,12 @@ + + + + + + diff --git a/EgwCoreLib.BlazorTest/Pages/TestCompo.razor b/EgwCoreLib.BlazorTest/Pages/TestCompo.razor index d5962cd..2018c62 100644 --- a/EgwCoreLib.BlazorTest/Pages/TestCompo.razor +++ b/EgwCoreLib.BlazorTest/Pages/TestCompo.razor @@ -1,11 +1,12 @@ @page "/TestCompo" +@using EgwCoreLib.Razor.Data; @using EgwCoreLib.Utils; Test

TestCompo

-
+@*
@if (periodo != null) { @@ -17,14 +18,52 @@
-
+
*@ + + @code { +#if false + protected DtUtils.Periodo? periodo { get; set; } = new DtUtils.Periodo(DtUtils.PeriodSet.ThisTrim); protected async Task setPeriodo(DtUtils.Periodo newPeriodo) { - await Task.Delay(1); - periodo = newPeriodo; + await Task.Delay(1); + periodo = newPeriodo; } +#endif + + public List colors = new List(); + + public List Data = new List(); + + public List Labels = new List(); + + protected override async Task OnInitializedAsync() + { + await Task.Delay(1); + } + + protected override async Task OnParametersSetAsync() + { + await ReloadData(); + await Task.Delay(1); + } + + protected async Task ReloadData() + { + Data.Clear(); + Labels.Clear(); + colors.Clear(); + for (int x = 0; x < 5; x++) + { + Data.Add(x); + Labels.Add($"test n#: {x} - {x}min"); + colors.Add(new DoughnutStyling("orange", "ccc")); + colors.Add(new DoughnutStyling("#2874A6", "ccc")); + } + await Task.Delay(1); + } + } diff --git a/EgwCoreLib.BlazorTest/Pages/_Layout.cshtml b/EgwCoreLib.BlazorTest/Pages/_Layout.cshtml index aebdb89..75b7d29 100644 --- a/EgwCoreLib.BlazorTest/Pages/_Layout.cshtml +++ b/EgwCoreLib.BlazorTest/Pages/_Layout.cshtml @@ -29,5 +29,8 @@
+ + + diff --git a/EgwCoreLib.BlazorTest/libman.json b/EgwCoreLib.BlazorTest/libman.json index 9fbb4ec..7cedf8b 100644 --- a/EgwCoreLib.BlazorTest/libman.json +++ b/EgwCoreLib.BlazorTest/libman.json @@ -9,6 +9,16 @@ { "library": "font-awesome@6.3.0", "destination": "wwwroot/lib/font-awesome/" + }, + { + "library": "Chart.js@4.3.0", + "destination": "wwwroot/lib/Chart.js/", + "files": [ + "chart.min.js", + "helpers.min.js", + "helpers.js", + "chart.js" + ] } ] } \ No newline at end of file diff --git a/EgwCoreLib.BlazorTest/wwwroot/lib/Chart.js/chart.esm.js b/EgwCoreLib.BlazorTest/wwwroot/lib/Chart.js/chart.esm.js new file mode 100644 index 0000000..cf5bb7b --- /dev/null +++ b/EgwCoreLib.BlazorTest/wwwroot/lib/Chart.js/chart.esm.js @@ -0,0 +1,10608 @@ +/*! + * Chart.js v3.7.0 + * https://www.chartjs.org + * (c) 2021 Chart.js Contributors + * Released under the MIT License + */ +import { r as requestAnimFrame, a as resolve, e as effects, c as color, d as defaults, i as isObject, b as isArray, v as valueOrDefault, u as unlistenArrayEvents, l as listenArrayEvents, f as resolveObjectKey, g as isNumberFinite, h as createContext, j as defined, s as sign, k as isNullOrUndef, _ as _arrayUnique, t as toRadians, m as toPercentage, n as toDimension, T as TAU, o as formatNumber, p as _angleBetween, H as HALF_PI, P as PI, q as isNumber, w as _limitValue, x as _lookupByKey, y as getRelativePosition$1, z as _isPointInArea, A as _rlookupByKey, B as getAngleFromPoint, C as toPadding, D as each, E as getMaximumSize, F as _getParentNode, G as readUsedSize, I as throttled, J as supportsEventListenerOptions, K as _isDomSupported, L as log10, M as _factorize, N as finiteOrDefault, O as callback, Q as _addGrace, R as toDegrees, S as _measureText, U as _int16Range, V as _alignPixel, W as clipArea, X as renderText, Y as unclipArea, Z as toFont, $ as _toLeftRightCenter, a0 as _alignStartEnd, a1 as overrides, a2 as merge, a3 as _capitalize, a4 as descriptors, a5 as isFunction, a6 as _attachContext, a7 as _createResolver, a8 as _descriptors, a9 as mergeIf, aa as uid, ab as debounce, ac as retinaScale, ad as clearCanvas, ae as setsEqual, af as _elementsEqual, ag as _isClickEvent, ah as _isBetween, ai as _readValueToProps, aj as _updateBezierControlPoints, ak as _computeSegments, al as _boundSegments, am as _steppedInterpolation, an as _bezierInterpolation, ao as _pointInLine, ap as _steppedLineTo, aq as _bezierCurveTo, ar as drawPoint, as as addRoundedRectPath, at as toTRBL, au as toTRBLCorners, av as _boundSegment, aw as _normalizeAngle, ax as getRtlAdapter, ay as overrideTextDirection, az as _textX, aA as restoreTextDirection, aB as noop, aC as distanceBetweenPoints, aD as _setMinAndMaxByKey, aE as niceNum, aF as almostWhole, aG as almostEquals, aH as _decimalPlaces, aI as _longestText, aJ as _filterBetween, aK as _lookup } from './chunks/helpers.segment.js'; +export { d as defaults } from './chunks/helpers.segment.js'; + +class Animator { + constructor() { + this._request = null; + this._charts = new Map(); + this._running = false; + this._lastDate = undefined; + } + _notify(chart, anims, date, type) { + const callbacks = anims.listeners[type]; + const numSteps = anims.duration; + callbacks.forEach(fn => fn({ + chart, + initial: anims.initial, + numSteps, + currentStep: Math.min(date - anims.start, numSteps) + })); + } + _refresh() { + if (this._request) { + return; + } + this._running = true; + this._request = requestAnimFrame.call(window, () => { + this._update(); + this._request = null; + if (this._running) { + this._refresh(); + } + }); + } + _update(date = Date.now()) { + let remaining = 0; + this._charts.forEach((anims, chart) => { + if (!anims.running || !anims.items.length) { + return; + } + const items = anims.items; + let i = items.length - 1; + let draw = false; + let item; + for (; i >= 0; --i) { + item = items[i]; + if (item._active) { + if (item._total > anims.duration) { + anims.duration = item._total; + } + item.tick(date); + draw = true; + } else { + items[i] = items[items.length - 1]; + items.pop(); + } + } + if (draw) { + chart.draw(); + this._notify(chart, anims, date, 'progress'); + } + if (!items.length) { + anims.running = false; + this._notify(chart, anims, date, 'complete'); + anims.initial = false; + } + remaining += items.length; + }); + this._lastDate = date; + if (remaining === 0) { + this._running = false; + } + } + _getAnims(chart) { + const charts = this._charts; + let anims = charts.get(chart); + if (!anims) { + anims = { + running: false, + initial: true, + items: [], + listeners: { + complete: [], + progress: [] + } + }; + charts.set(chart, anims); + } + return anims; + } + listen(chart, event, cb) { + this._getAnims(chart).listeners[event].push(cb); + } + add(chart, items) { + if (!items || !items.length) { + return; + } + this._getAnims(chart).items.push(...items); + } + has(chart) { + return this._getAnims(chart).items.length > 0; + } + start(chart) { + const anims = this._charts.get(chart); + if (!anims) { + return; + } + anims.running = true; + anims.start = Date.now(); + anims.duration = anims.items.reduce((acc, cur) => Math.max(acc, cur._duration), 0); + this._refresh(); + } + running(chart) { + if (!this._running) { + return false; + } + const anims = this._charts.get(chart); + if (!anims || !anims.running || !anims.items.length) { + return false; + } + return true; + } + stop(chart) { + const anims = this._charts.get(chart); + if (!anims || !anims.items.length) { + return; + } + const items = anims.items; + let i = items.length - 1; + for (; i >= 0; --i) { + items[i].cancel(); + } + anims.items = []; + this._notify(chart, anims, Date.now(), 'complete'); + } + remove(chart) { + return this._charts.delete(chart); + } +} +var animator = new Animator(); + +const transparent = 'transparent'; +const interpolators = { + boolean(from, to, factor) { + return factor > 0.5 ? to : from; + }, + color(from, to, factor) { + const c0 = color(from || transparent); + const c1 = c0.valid && color(to || transparent); + return c1 && c1.valid + ? c1.mix(c0, factor).hexString() + : to; + }, + number(from, to, factor) { + return from + (to - from) * factor; + } +}; +class Animation { + constructor(cfg, target, prop, to) { + const currentValue = target[prop]; + to = resolve([cfg.to, to, currentValue, cfg.from]); + const from = resolve([cfg.from, currentValue, to]); + this._active = true; + this._fn = cfg.fn || interpolators[cfg.type || typeof from]; + this._easing = effects[cfg.easing] || effects.linear; + this._start = Math.floor(Date.now() + (cfg.delay || 0)); + this._duration = this._total = Math.floor(cfg.duration); + this._loop = !!cfg.loop; + this._target = target; + this._prop = prop; + this._from = from; + this._to = to; + this._promises = undefined; + } + active() { + return this._active; + } + update(cfg, to, date) { + if (this._active) { + this._notify(false); + const currentValue = this._target[this._prop]; + const elapsed = date - this._start; + const remain = this._duration - elapsed; + this._start = date; + this._duration = Math.floor(Math.max(remain, cfg.duration)); + this._total += elapsed; + this._loop = !!cfg.loop; + this._to = resolve([cfg.to, to, currentValue, cfg.from]); + this._from = resolve([cfg.from, currentValue, to]); + } + } + cancel() { + if (this._active) { + this.tick(Date.now()); + this._active = false; + this._notify(false); + } + } + tick(date) { + const elapsed = date - this._start; + const duration = this._duration; + const prop = this._prop; + const from = this._from; + const loop = this._loop; + const to = this._to; + let factor; + this._active = from !== to && (loop || (elapsed < duration)); + if (!this._active) { + this._target[prop] = to; + this._notify(true); + return; + } + if (elapsed < 0) { + this._target[prop] = from; + return; + } + factor = (elapsed / duration) % 2; + factor = loop && factor > 1 ? 2 - factor : factor; + factor = this._easing(Math.min(1, Math.max(0, factor))); + this._target[prop] = this._fn(from, to, factor); + } + wait() { + const promises = this._promises || (this._promises = []); + return new Promise((res, rej) => { + promises.push({res, rej}); + }); + } + _notify(resolved) { + const method = resolved ? 'res' : 'rej'; + const promises = this._promises || []; + for (let i = 0; i < promises.length; i++) { + promises[i][method](); + } + } +} + +const numbers = ['x', 'y', 'borderWidth', 'radius', 'tension']; +const colors = ['color', 'borderColor', 'backgroundColor']; +defaults.set('animation', { + delay: undefined, + duration: 1000, + easing: 'easeOutQuart', + fn: undefined, + from: undefined, + loop: undefined, + to: undefined, + type: undefined, +}); +const animationOptions = Object.keys(defaults.animation); +defaults.describe('animation', { + _fallback: false, + _indexable: false, + _scriptable: (name) => name !== 'onProgress' && name !== 'onComplete' && name !== 'fn', +}); +defaults.set('animations', { + colors: { + type: 'color', + properties: colors + }, + numbers: { + type: 'number', + properties: numbers + }, +}); +defaults.describe('animations', { + _fallback: 'animation', +}); +defaults.set('transitions', { + active: { + animation: { + duration: 400 + } + }, + resize: { + animation: { + duration: 0 + } + }, + show: { + animations: { + colors: { + from: 'transparent' + }, + visible: { + type: 'boolean', + duration: 0 + }, + } + }, + hide: { + animations: { + colors: { + to: 'transparent' + }, + visible: { + type: 'boolean', + easing: 'linear', + fn: v => v | 0 + }, + } + } +}); +class Animations { + constructor(chart, config) { + this._chart = chart; + this._properties = new Map(); + this.configure(config); + } + configure(config) { + if (!isObject(config)) { + return; + } + const animatedProps = this._properties; + Object.getOwnPropertyNames(config).forEach(key => { + const cfg = config[key]; + if (!isObject(cfg)) { + return; + } + const resolved = {}; + for (const option of animationOptions) { + resolved[option] = cfg[option]; + } + (isArray(cfg.properties) && cfg.properties || [key]).forEach((prop) => { + if (prop === key || !animatedProps.has(prop)) { + animatedProps.set(prop, resolved); + } + }); + }); + } + _animateOptions(target, values) { + const newOptions = values.options; + const options = resolveTargetOptions(target, newOptions); + if (!options) { + return []; + } + const animations = this._createAnimations(options, newOptions); + if (newOptions.$shared) { + awaitAll(target.options.$animations, newOptions).then(() => { + target.options = newOptions; + }, () => { + }); + } + return animations; + } + _createAnimations(target, values) { + const animatedProps = this._properties; + const animations = []; + const running = target.$animations || (target.$animations = {}); + const props = Object.keys(values); + const date = Date.now(); + let i; + for (i = props.length - 1; i >= 0; --i) { + const prop = props[i]; + if (prop.charAt(0) === '$') { + continue; + } + if (prop === 'options') { + animations.push(...this._animateOptions(target, values)); + continue; + } + const value = values[prop]; + let animation = running[prop]; + const cfg = animatedProps.get(prop); + if (animation) { + if (cfg && animation.active()) { + animation.update(cfg, value, date); + continue; + } else { + animation.cancel(); + } + } + if (!cfg || !cfg.duration) { + target[prop] = value; + continue; + } + running[prop] = animation = new Animation(cfg, target, prop, value); + animations.push(animation); + } + return animations; + } + update(target, values) { + if (this._properties.size === 0) { + Object.assign(target, values); + return; + } + const animations = this._createAnimations(target, values); + if (animations.length) { + animator.add(this._chart, animations); + return true; + } + } +} +function awaitAll(animations, properties) { + const running = []; + const keys = Object.keys(properties); + for (let i = 0; i < keys.length; i++) { + const anim = animations[keys[i]]; + if (anim && anim.active()) { + running.push(anim.wait()); + } + } + return Promise.all(running); +} +function resolveTargetOptions(target, newOptions) { + if (!newOptions) { + return; + } + let options = target.options; + if (!options) { + target.options = newOptions; + return; + } + if (options.$shared) { + target.options = options = Object.assign({}, options, {$shared: false, $animations: {}}); + } + return options; +} + +function scaleClip(scale, allowedOverflow) { + const opts = scale && scale.options || {}; + const reverse = opts.reverse; + const min = opts.min === undefined ? allowedOverflow : 0; + const max = opts.max === undefined ? allowedOverflow : 0; + return { + start: reverse ? max : min, + end: reverse ? min : max + }; +} +function defaultClip(xScale, yScale, allowedOverflow) { + if (allowedOverflow === false) { + return false; + } + const x = scaleClip(xScale, allowedOverflow); + const y = scaleClip(yScale, allowedOverflow); + return { + top: y.end, + right: x.end, + bottom: y.start, + left: x.start + }; +} +function toClip(value) { + let t, r, b, l; + if (isObject(value)) { + t = value.top; + r = value.right; + b = value.bottom; + l = value.left; + } else { + t = r = b = l = value; + } + return { + top: t, + right: r, + bottom: b, + left: l, + disabled: value === false + }; +} +function getSortedDatasetIndices(chart, filterVisible) { + const keys = []; + const metasets = chart._getSortedDatasetMetas(filterVisible); + let i, ilen; + for (i = 0, ilen = metasets.length; i < ilen; ++i) { + keys.push(metasets[i].index); + } + return keys; +} +function applyStack(stack, value, dsIndex, options = {}) { + const keys = stack.keys; + const singleMode = options.mode === 'single'; + let i, ilen, datasetIndex, otherValue; + if (value === null) { + return; + } + for (i = 0, ilen = keys.length; i < ilen; ++i) { + datasetIndex = +keys[i]; + if (datasetIndex === dsIndex) { + if (options.all) { + continue; + } + break; + } + otherValue = stack.values[datasetIndex]; + if (isNumberFinite(otherValue) && (singleMode || (value === 0 || sign(value) === sign(otherValue)))) { + value += otherValue; + } + } + return value; +} +function convertObjectDataToArray(data) { + const keys = Object.keys(data); + const adata = new Array(keys.length); + let i, ilen, key; + for (i = 0, ilen = keys.length; i < ilen; ++i) { + key = keys[i]; + adata[i] = { + x: key, + y: data[key] + }; + } + return adata; +} +function isStacked(scale, meta) { + const stacked = scale && scale.options.stacked; + return stacked || (stacked === undefined && meta.stack !== undefined); +} +function getStackKey(indexScale, valueScale, meta) { + return `${indexScale.id}.${valueScale.id}.${meta.stack || meta.type}`; +} +function getUserBounds(scale) { + const {min, max, minDefined, maxDefined} = scale.getUserBounds(); + return { + min: minDefined ? min : Number.NEGATIVE_INFINITY, + max: maxDefined ? max : Number.POSITIVE_INFINITY + }; +} +function getOrCreateStack(stacks, stackKey, indexValue) { + const subStack = stacks[stackKey] || (stacks[stackKey] = {}); + return subStack[indexValue] || (subStack[indexValue] = {}); +} +function getLastIndexInStack(stack, vScale, positive, type) { + for (const meta of vScale.getMatchingVisibleMetas(type).reverse()) { + const value = stack[meta.index]; + if ((positive && value > 0) || (!positive && value < 0)) { + return meta.index; + } + } + return null; +} +function updateStacks(controller, parsed) { + const {chart, _cachedMeta: meta} = controller; + const stacks = chart._stacks || (chart._stacks = {}); + const {iScale, vScale, index: datasetIndex} = meta; + const iAxis = iScale.axis; + const vAxis = vScale.axis; + const key = getStackKey(iScale, vScale, meta); + const ilen = parsed.length; + let stack; + for (let i = 0; i < ilen; ++i) { + const item = parsed[i]; + const {[iAxis]: index, [vAxis]: value} = item; + const itemStacks = item._stacks || (item._stacks = {}); + stack = itemStacks[vAxis] = getOrCreateStack(stacks, key, index); + stack[datasetIndex] = value; + stack._top = getLastIndexInStack(stack, vScale, true, meta.type); + stack._bottom = getLastIndexInStack(stack, vScale, false, meta.type); + } +} +function getFirstScaleId(chart, axis) { + const scales = chart.scales; + return Object.keys(scales).filter(key => scales[key].axis === axis).shift(); +} +function createDatasetContext(parent, index) { + return createContext(parent, + { + active: false, + dataset: undefined, + datasetIndex: index, + index, + mode: 'default', + type: 'dataset' + } + ); +} +function createDataContext(parent, index, element) { + return createContext(parent, { + active: false, + dataIndex: index, + parsed: undefined, + raw: undefined, + element, + index, + mode: 'default', + type: 'data' + }); +} +function clearStacks(meta, items) { + const datasetIndex = meta.controller.index; + const axis = meta.vScale && meta.vScale.axis; + if (!axis) { + return; + } + items = items || meta._parsed; + for (const parsed of items) { + const stacks = parsed._stacks; + if (!stacks || stacks[axis] === undefined || stacks[axis][datasetIndex] === undefined) { + return; + } + delete stacks[axis][datasetIndex]; + } +} +const isDirectUpdateMode = (mode) => mode === 'reset' || mode === 'none'; +const cloneIfNotShared = (cached, shared) => shared ? cached : Object.assign({}, cached); +const createStack = (canStack, meta, chart) => canStack && !meta.hidden && meta._stacked + && {keys: getSortedDatasetIndices(chart, true), values: null}; +class DatasetController { + constructor(chart, datasetIndex) { + this.chart = chart; + this._ctx = chart.ctx; + this.index = datasetIndex; + this._cachedDataOpts = {}; + this._cachedMeta = this.getMeta(); + this._type = this._cachedMeta.type; + this.options = undefined; + this._parsing = false; + this._data = undefined; + this._objectData = undefined; + this._sharedOptions = undefined; + this._drawStart = undefined; + this._drawCount = undefined; + this.enableOptionSharing = false; + this.$context = undefined; + this._syncList = []; + this.initialize(); + } + initialize() { + const meta = this._cachedMeta; + this.configure(); + this.linkScales(); + meta._stacked = isStacked(meta.vScale, meta); + this.addElements(); + } + updateIndex(datasetIndex) { + if (this.index !== datasetIndex) { + clearStacks(this._cachedMeta); + } + this.index = datasetIndex; + } + linkScales() { + const chart = this.chart; + const meta = this._cachedMeta; + const dataset = this.getDataset(); + const chooseId = (axis, x, y, r) => axis === 'x' ? x : axis === 'r' ? r : y; + const xid = meta.xAxisID = valueOrDefault(dataset.xAxisID, getFirstScaleId(chart, 'x')); + const yid = meta.yAxisID = valueOrDefault(dataset.yAxisID, getFirstScaleId(chart, 'y')); + const rid = meta.rAxisID = valueOrDefault(dataset.rAxisID, getFirstScaleId(chart, 'r')); + const indexAxis = meta.indexAxis; + const iid = meta.iAxisID = chooseId(indexAxis, xid, yid, rid); + const vid = meta.vAxisID = chooseId(indexAxis, yid, xid, rid); + meta.xScale = this.getScaleForId(xid); + meta.yScale = this.getScaleForId(yid); + meta.rScale = this.getScaleForId(rid); + meta.iScale = this.getScaleForId(iid); + meta.vScale = this.getScaleForId(vid); + } + getDataset() { + return this.chart.data.datasets[this.index]; + } + getMeta() { + return this.chart.getDatasetMeta(this.index); + } + getScaleForId(scaleID) { + return this.chart.scales[scaleID]; + } + _getOtherScale(scale) { + const meta = this._cachedMeta; + return scale === meta.iScale + ? meta.vScale + : meta.iScale; + } + reset() { + this._update('reset'); + } + _destroy() { + const meta = this._cachedMeta; + if (this._data) { + unlistenArrayEvents(this._data, this); + } + if (meta._stacked) { + clearStacks(meta); + } + } + _dataCheck() { + const dataset = this.getDataset(); + const data = dataset.data || (dataset.data = []); + const _data = this._data; + if (isObject(data)) { + this._data = convertObjectDataToArray(data); + } else if (_data !== data) { + if (_data) { + unlistenArrayEvents(_data, this); + const meta = this._cachedMeta; + clearStacks(meta); + meta._parsed = []; + } + if (data && Object.isExtensible(data)) { + listenArrayEvents(data, this); + } + this._syncList = []; + this._data = data; + } + } + addElements() { + const meta = this._cachedMeta; + this._dataCheck(); + if (this.datasetElementType) { + meta.dataset = new this.datasetElementType(); + } + } + buildOrUpdateElements(resetNewElements) { + const meta = this._cachedMeta; + const dataset = this.getDataset(); + let stackChanged = false; + this._dataCheck(); + const oldStacked = meta._stacked; + meta._stacked = isStacked(meta.vScale, meta); + if (meta.stack !== dataset.stack) { + stackChanged = true; + clearStacks(meta); + meta.stack = dataset.stack; + } + this._resyncElements(resetNewElements); + if (stackChanged || oldStacked !== meta._stacked) { + updateStacks(this, meta._parsed); + } + } + configure() { + const config = this.chart.config; + const scopeKeys = config.datasetScopeKeys(this._type); + const scopes = config.getOptionScopes(this.getDataset(), scopeKeys, true); + this.options = config.createResolver(scopes, this.getContext()); + this._parsing = this.options.parsing; + this._cachedDataOpts = {}; + } + parse(start, count) { + const {_cachedMeta: meta, _data: data} = this; + const {iScale, _stacked} = meta; + const iAxis = iScale.axis; + let sorted = start === 0 && count === data.length ? true : meta._sorted; + let prev = start > 0 && meta._parsed[start - 1]; + let i, cur, parsed; + if (this._parsing === false) { + meta._parsed = data; + meta._sorted = true; + parsed = data; + } else { + if (isArray(data[start])) { + parsed = this.parseArrayData(meta, data, start, count); + } else if (isObject(data[start])) { + parsed = this.parseObjectData(meta, data, start, count); + } else { + parsed = this.parsePrimitiveData(meta, data, start, count); + } + const isNotInOrderComparedToPrev = () => cur[iAxis] === null || (prev && cur[iAxis] < prev[iAxis]); + for (i = 0; i < count; ++i) { + meta._parsed[i + start] = cur = parsed[i]; + if (sorted) { + if (isNotInOrderComparedToPrev()) { + sorted = false; + } + prev = cur; + } + } + meta._sorted = sorted; + } + if (_stacked) { + updateStacks(this, parsed); + } + } + parsePrimitiveData(meta, data, start, count) { + const {iScale, vScale} = meta; + const iAxis = iScale.axis; + const vAxis = vScale.axis; + const labels = iScale.getLabels(); + const singleScale = iScale === vScale; + const parsed = new Array(count); + let i, ilen, index; + for (i = 0, ilen = count; i < ilen; ++i) { + index = i + start; + parsed[i] = { + [iAxis]: singleScale || iScale.parse(labels[index], index), + [vAxis]: vScale.parse(data[index], index) + }; + } + return parsed; + } + parseArrayData(meta, data, start, count) { + const {xScale, yScale} = meta; + const parsed = new Array(count); + let i, ilen, index, item; + for (i = 0, ilen = count; i < ilen; ++i) { + index = i + start; + item = data[index]; + parsed[i] = { + x: xScale.parse(item[0], index), + y: yScale.parse(item[1], index) + }; + } + return parsed; + } + parseObjectData(meta, data, start, count) { + const {xScale, yScale} = meta; + const {xAxisKey = 'x', yAxisKey = 'y'} = this._parsing; + const parsed = new Array(count); + let i, ilen, index, item; + for (i = 0, ilen = count; i < ilen; ++i) { + index = i + start; + item = data[index]; + parsed[i] = { + x: xScale.parse(resolveObjectKey(item, xAxisKey), index), + y: yScale.parse(resolveObjectKey(item, yAxisKey), index) + }; + } + return parsed; + } + getParsed(index) { + return this._cachedMeta._parsed[index]; + } + getDataElement(index) { + return this._cachedMeta.data[index]; + } + applyStack(scale, parsed, mode) { + const chart = this.chart; + const meta = this._cachedMeta; + const value = parsed[scale.axis]; + const stack = { + keys: getSortedDatasetIndices(chart, true), + values: parsed._stacks[scale.axis] + }; + return applyStack(stack, value, meta.index, {mode}); + } + updateRangeFromParsed(range, scale, parsed, stack) { + const parsedValue = parsed[scale.axis]; + let value = parsedValue === null ? NaN : parsedValue; + const values = stack && parsed._stacks[scale.axis]; + if (stack && values) { + stack.values = values; + value = applyStack(stack, parsedValue, this._cachedMeta.index); + } + range.min = Math.min(range.min, value); + range.max = Math.max(range.max, value); + } + getMinMax(scale, canStack) { + const meta = this._cachedMeta; + const _parsed = meta._parsed; + const sorted = meta._sorted && scale === meta.iScale; + const ilen = _parsed.length; + const otherScale = this._getOtherScale(scale); + const stack = createStack(canStack, meta, this.chart); + const range = {min: Number.POSITIVE_INFINITY, max: Number.NEGATIVE_INFINITY}; + const {min: otherMin, max: otherMax} = getUserBounds(otherScale); + let i, parsed; + function _skip() { + parsed = _parsed[i]; + const otherValue = parsed[otherScale.axis]; + return !isNumberFinite(parsed[scale.axis]) || otherMin > otherValue || otherMax < otherValue; + } + for (i = 0; i < ilen; ++i) { + if (_skip()) { + continue; + } + this.updateRangeFromParsed(range, scale, parsed, stack); + if (sorted) { + break; + } + } + if (sorted) { + for (i = ilen - 1; i >= 0; --i) { + if (_skip()) { + continue; + } + this.updateRangeFromParsed(range, scale, parsed, stack); + break; + } + } + return range; + } + getAllParsedValues(scale) { + const parsed = this._cachedMeta._parsed; + const values = []; + let i, ilen, value; + for (i = 0, ilen = parsed.length; i < ilen; ++i) { + value = parsed[i][scale.axis]; + if (isNumberFinite(value)) { + values.push(value); + } + } + return values; + } + getMaxOverflow() { + return false; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const iScale = meta.iScale; + const vScale = meta.vScale; + const parsed = this.getParsed(index); + return { + label: iScale ? '' + iScale.getLabelForValue(parsed[iScale.axis]) : '', + value: vScale ? '' + vScale.getLabelForValue(parsed[vScale.axis]) : '' + }; + } + _update(mode) { + const meta = this._cachedMeta; + this.update(mode || 'default'); + meta._clip = toClip(valueOrDefault(this.options.clip, defaultClip(meta.xScale, meta.yScale, this.getMaxOverflow()))); + } + update(mode) {} + draw() { + const ctx = this._ctx; + const chart = this.chart; + const meta = this._cachedMeta; + const elements = meta.data || []; + const area = chart.chartArea; + const active = []; + const start = this._drawStart || 0; + const count = this._drawCount || (elements.length - start); + const drawActiveElementsOnTop = this.options.drawActiveElementsOnTop; + let i; + if (meta.dataset) { + meta.dataset.draw(ctx, area, start, count); + } + for (i = start; i < start + count; ++i) { + const element = elements[i]; + if (element.hidden) { + continue; + } + if (element.active && drawActiveElementsOnTop) { + active.push(element); + } else { + element.draw(ctx, area); + } + } + for (i = 0; i < active.length; ++i) { + active[i].draw(ctx, area); + } + } + getStyle(index, active) { + const mode = active ? 'active' : 'default'; + return index === undefined && this._cachedMeta.dataset + ? this.resolveDatasetElementOptions(mode) + : this.resolveDataElementOptions(index || 0, mode); + } + getContext(index, active, mode) { + const dataset = this.getDataset(); + let context; + if (index >= 0 && index < this._cachedMeta.data.length) { + const element = this._cachedMeta.data[index]; + context = element.$context || + (element.$context = createDataContext(this.getContext(), index, element)); + context.parsed = this.getParsed(index); + context.raw = dataset.data[index]; + context.index = context.dataIndex = index; + } else { + context = this.$context || + (this.$context = createDatasetContext(this.chart.getContext(), this.index)); + context.dataset = dataset; + context.index = context.datasetIndex = this.index; + } + context.active = !!active; + context.mode = mode; + return context; + } + resolveDatasetElementOptions(mode) { + return this._resolveElementOptions(this.datasetElementType.id, mode); + } + resolveDataElementOptions(index, mode) { + return this._resolveElementOptions(this.dataElementType.id, mode, index); + } + _resolveElementOptions(elementType, mode = 'default', index) { + const active = mode === 'active'; + const cache = this._cachedDataOpts; + const cacheKey = elementType + '-' + mode; + const cached = cache[cacheKey]; + const sharing = this.enableOptionSharing && defined(index); + if (cached) { + return cloneIfNotShared(cached, sharing); + } + const config = this.chart.config; + const scopeKeys = config.datasetElementScopeKeys(this._type, elementType); + const prefixes = active ? [`${elementType}Hover`, 'hover', elementType, ''] : [elementType, '']; + const scopes = config.getOptionScopes(this.getDataset(), scopeKeys); + const names = Object.keys(defaults.elements[elementType]); + const context = () => this.getContext(index, active); + const values = config.resolveNamedOptions(scopes, names, context, prefixes); + if (values.$shared) { + values.$shared = sharing; + cache[cacheKey] = Object.freeze(cloneIfNotShared(values, sharing)); + } + return values; + } + _resolveAnimations(index, transition, active) { + const chart = this.chart; + const cache = this._cachedDataOpts; + const cacheKey = `animation-${transition}`; + const cached = cache[cacheKey]; + if (cached) { + return cached; + } + let options; + if (chart.options.animation !== false) { + const config = this.chart.config; + const scopeKeys = config.datasetAnimationScopeKeys(this._type, transition); + const scopes = config.getOptionScopes(this.getDataset(), scopeKeys); + options = config.createResolver(scopes, this.getContext(index, active, transition)); + } + const animations = new Animations(chart, options && options.animations); + if (options && options._cacheable) { + cache[cacheKey] = Object.freeze(animations); + } + return animations; + } + getSharedOptions(options) { + if (!options.$shared) { + return; + } + return this._sharedOptions || (this._sharedOptions = Object.assign({}, options)); + } + includeOptions(mode, sharedOptions) { + return !sharedOptions || isDirectUpdateMode(mode) || this.chart._animationsDisabled; + } + updateElement(element, index, properties, mode) { + if (isDirectUpdateMode(mode)) { + Object.assign(element, properties); + } else { + this._resolveAnimations(index, mode).update(element, properties); + } + } + updateSharedOptions(sharedOptions, mode, newOptions) { + if (sharedOptions && !isDirectUpdateMode(mode)) { + this._resolveAnimations(undefined, mode).update(sharedOptions, newOptions); + } + } + _setStyle(element, index, mode, active) { + element.active = active; + const options = this.getStyle(index, active); + this._resolveAnimations(index, mode, active).update(element, { + options: (!active && this.getSharedOptions(options)) || options + }); + } + removeHoverStyle(element, datasetIndex, index) { + this._setStyle(element, index, 'active', false); + } + setHoverStyle(element, datasetIndex, index) { + this._setStyle(element, index, 'active', true); + } + _removeDatasetHoverStyle() { + const element = this._cachedMeta.dataset; + if (element) { + this._setStyle(element, undefined, 'active', false); + } + } + _setDatasetHoverStyle() { + const element = this._cachedMeta.dataset; + if (element) { + this._setStyle(element, undefined, 'active', true); + } + } + _resyncElements(resetNewElements) { + const data = this._data; + const elements = this._cachedMeta.data; + for (const [method, arg1, arg2] of this._syncList) { + this[method](arg1, arg2); + } + this._syncList = []; + const numMeta = elements.length; + const numData = data.length; + const count = Math.min(numData, numMeta); + if (count) { + this.parse(0, count); + } + if (numData > numMeta) { + this._insertElements(numMeta, numData - numMeta, resetNewElements); + } else if (numData < numMeta) { + this._removeElements(numData, numMeta - numData); + } + } + _insertElements(start, count, resetNewElements = true) { + const meta = this._cachedMeta; + const data = meta.data; + const end = start + count; + let i; + const move = (arr) => { + arr.length += count; + for (i = arr.length - 1; i >= end; i--) { + arr[i] = arr[i - count]; + } + }; + move(data); + for (i = start; i < end; ++i) { + data[i] = new this.dataElementType(); + } + if (this._parsing) { + move(meta._parsed); + } + this.parse(start, count); + if (resetNewElements) { + this.updateElements(data, start, count, 'reset'); + } + } + updateElements(element, start, count, mode) {} + _removeElements(start, count) { + const meta = this._cachedMeta; + if (this._parsing) { + const removed = meta._parsed.splice(start, count); + if (meta._stacked) { + clearStacks(meta, removed); + } + } + meta.data.splice(start, count); + } + _sync(args) { + if (this._parsing) { + this._syncList.push(args); + } else { + const [method, arg1, arg2] = args; + this[method](arg1, arg2); + } + this.chart._dataChanges.push([this.index, ...args]); + } + _onDataPush() { + const count = arguments.length; + this._sync(['_insertElements', this.getDataset().data.length - count, count]); + } + _onDataPop() { + this._sync(['_removeElements', this._cachedMeta.data.length - 1, 1]); + } + _onDataShift() { + this._sync(['_removeElements', 0, 1]); + } + _onDataSplice(start, count) { + if (count) { + this._sync(['_removeElements', start, count]); + } + const newCount = arguments.length - 2; + if (newCount) { + this._sync(['_insertElements', start, newCount]); + } + } + _onDataUnshift() { + this._sync(['_insertElements', 0, arguments.length]); + } +} +DatasetController.defaults = {}; +DatasetController.prototype.datasetElementType = null; +DatasetController.prototype.dataElementType = null; + +function getAllScaleValues(scale, type) { + if (!scale._cache.$bar) { + const visibleMetas = scale.getMatchingVisibleMetas(type); + let values = []; + for (let i = 0, ilen = visibleMetas.length; i < ilen; i++) { + values = values.concat(visibleMetas[i].controller.getAllParsedValues(scale)); + } + scale._cache.$bar = _arrayUnique(values.sort((a, b) => a - b)); + } + return scale._cache.$bar; +} +function computeMinSampleSize(meta) { + const scale = meta.iScale; + const values = getAllScaleValues(scale, meta.type); + let min = scale._length; + let i, ilen, curr, prev; + const updateMinAndPrev = () => { + if (curr === 32767 || curr === -32768) { + return; + } + if (defined(prev)) { + min = Math.min(min, Math.abs(curr - prev) || min); + } + prev = curr; + }; + for (i = 0, ilen = values.length; i < ilen; ++i) { + curr = scale.getPixelForValue(values[i]); + updateMinAndPrev(); + } + prev = undefined; + for (i = 0, ilen = scale.ticks.length; i < ilen; ++i) { + curr = scale.getPixelForTick(i); + updateMinAndPrev(); + } + return min; +} +function computeFitCategoryTraits(index, ruler, options, stackCount) { + const thickness = options.barThickness; + let size, ratio; + if (isNullOrUndef(thickness)) { + size = ruler.min * options.categoryPercentage; + ratio = options.barPercentage; + } else { + size = thickness * stackCount; + ratio = 1; + } + return { + chunk: size / stackCount, + ratio, + start: ruler.pixels[index] - (size / 2) + }; +} +function computeFlexCategoryTraits(index, ruler, options, stackCount) { + const pixels = ruler.pixels; + const curr = pixels[index]; + let prev = index > 0 ? pixels[index - 1] : null; + let next = index < pixels.length - 1 ? pixels[index + 1] : null; + const percent = options.categoryPercentage; + if (prev === null) { + prev = curr - (next === null ? ruler.end - ruler.start : next - curr); + } + if (next === null) { + next = curr + curr - prev; + } + const start = curr - (curr - Math.min(prev, next)) / 2 * percent; + const size = Math.abs(next - prev) / 2 * percent; + return { + chunk: size / stackCount, + ratio: options.barPercentage, + start + }; +} +function parseFloatBar(entry, item, vScale, i) { + const startValue = vScale.parse(entry[0], i); + const endValue = vScale.parse(entry[1], i); + const min = Math.min(startValue, endValue); + const max = Math.max(startValue, endValue); + let barStart = min; + let barEnd = max; + if (Math.abs(min) > Math.abs(max)) { + barStart = max; + barEnd = min; + } + item[vScale.axis] = barEnd; + item._custom = { + barStart, + barEnd, + start: startValue, + end: endValue, + min, + max + }; +} +function parseValue(entry, item, vScale, i) { + if (isArray(entry)) { + parseFloatBar(entry, item, vScale, i); + } else { + item[vScale.axis] = vScale.parse(entry, i); + } + return item; +} +function parseArrayOrPrimitive(meta, data, start, count) { + const iScale = meta.iScale; + const vScale = meta.vScale; + const labels = iScale.getLabels(); + const singleScale = iScale === vScale; + const parsed = []; + let i, ilen, item, entry; + for (i = start, ilen = start + count; i < ilen; ++i) { + entry = data[i]; + item = {}; + item[iScale.axis] = singleScale || iScale.parse(labels[i], i); + parsed.push(parseValue(entry, item, vScale, i)); + } + return parsed; +} +function isFloatBar(custom) { + return custom && custom.barStart !== undefined && custom.barEnd !== undefined; +} +function barSign(size, vScale, actualBase) { + if (size !== 0) { + return sign(size); + } + return (vScale.isHorizontal() ? 1 : -1) * (vScale.min >= actualBase ? 1 : -1); +} +function borderProps(properties) { + let reverse, start, end, top, bottom; + if (properties.horizontal) { + reverse = properties.base > properties.x; + start = 'left'; + end = 'right'; + } else { + reverse = properties.base < properties.y; + start = 'bottom'; + end = 'top'; + } + if (reverse) { + top = 'end'; + bottom = 'start'; + } else { + top = 'start'; + bottom = 'end'; + } + return {start, end, reverse, top, bottom}; +} +function setBorderSkipped(properties, options, stack, index) { + let edge = options.borderSkipped; + const res = {}; + if (!edge) { + properties.borderSkipped = res; + return; + } + const {start, end, reverse, top, bottom} = borderProps(properties); + if (edge === 'middle' && stack) { + properties.enableBorderRadius = true; + if ((stack._top || 0) === index) { + edge = top; + } else if ((stack._bottom || 0) === index) { + edge = bottom; + } else { + res[parseEdge(bottom, start, end, reverse)] = true; + edge = top; + } + } + res[parseEdge(edge, start, end, reverse)] = true; + properties.borderSkipped = res; +} +function parseEdge(edge, a, b, reverse) { + if (reverse) { + edge = swap(edge, a, b); + edge = startEnd(edge, b, a); + } else { + edge = startEnd(edge, a, b); + } + return edge; +} +function swap(orig, v1, v2) { + return orig === v1 ? v2 : orig === v2 ? v1 : orig; +} +function startEnd(v, start, end) { + return v === 'start' ? start : v === 'end' ? end : v; +} +function setInflateAmount(properties, {inflateAmount}, ratio) { + properties.inflateAmount = inflateAmount === 'auto' + ? ratio === 1 ? 0.33 : 0 + : inflateAmount; +} +class BarController extends DatasetController { + parsePrimitiveData(meta, data, start, count) { + return parseArrayOrPrimitive(meta, data, start, count); + } + parseArrayData(meta, data, start, count) { + return parseArrayOrPrimitive(meta, data, start, count); + } + parseObjectData(meta, data, start, count) { + const {iScale, vScale} = meta; + const {xAxisKey = 'x', yAxisKey = 'y'} = this._parsing; + const iAxisKey = iScale.axis === 'x' ? xAxisKey : yAxisKey; + const vAxisKey = vScale.axis === 'x' ? xAxisKey : yAxisKey; + const parsed = []; + let i, ilen, item, obj; + for (i = start, ilen = start + count; i < ilen; ++i) { + obj = data[i]; + item = {}; + item[iScale.axis] = iScale.parse(resolveObjectKey(obj, iAxisKey), i); + parsed.push(parseValue(resolveObjectKey(obj, vAxisKey), item, vScale, i)); + } + return parsed; + } + updateRangeFromParsed(range, scale, parsed, stack) { + super.updateRangeFromParsed(range, scale, parsed, stack); + const custom = parsed._custom; + if (custom && scale === this._cachedMeta.vScale) { + range.min = Math.min(range.min, custom.min); + range.max = Math.max(range.max, custom.max); + } + } + getMaxOverflow() { + return 0; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const {iScale, vScale} = meta; + const parsed = this.getParsed(index); + const custom = parsed._custom; + const value = isFloatBar(custom) + ? '[' + custom.start + ', ' + custom.end + ']' + : '' + vScale.getLabelForValue(parsed[vScale.axis]); + return { + label: '' + iScale.getLabelForValue(parsed[iScale.axis]), + value + }; + } + initialize() { + this.enableOptionSharing = true; + super.initialize(); + const meta = this._cachedMeta; + meta.stack = this.getDataset().stack; + } + update(mode) { + const meta = this._cachedMeta; + this.updateElements(meta.data, 0, meta.data.length, mode); + } + updateElements(bars, start, count, mode) { + const reset = mode === 'reset'; + const {index, _cachedMeta: {vScale}} = this; + const base = vScale.getBasePixel(); + const horizontal = vScale.isHorizontal(); + const ruler = this._getRuler(); + const firstOpts = this.resolveDataElementOptions(start, mode); + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions); + this.updateSharedOptions(sharedOptions, mode, firstOpts); + for (let i = start; i < start + count; i++) { + const parsed = this.getParsed(i); + const vpixels = reset || isNullOrUndef(parsed[vScale.axis]) ? {base, head: base} : this._calculateBarValuePixels(i); + const ipixels = this._calculateBarIndexPixels(i, ruler); + const stack = (parsed._stacks || {})[vScale.axis]; + const properties = { + horizontal, + base: vpixels.base, + enableBorderRadius: !stack || isFloatBar(parsed._custom) || (index === stack._top || index === stack._bottom), + x: horizontal ? vpixels.head : ipixels.center, + y: horizontal ? ipixels.center : vpixels.head, + height: horizontal ? ipixels.size : Math.abs(vpixels.size), + width: horizontal ? Math.abs(vpixels.size) : ipixels.size + }; + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, bars[i].active ? 'active' : mode); + } + const options = properties.options || bars[i].options; + setBorderSkipped(properties, options, stack, index); + setInflateAmount(properties, options, ruler.ratio); + this.updateElement(bars[i], i, properties, mode); + } + } + _getStacks(last, dataIndex) { + const meta = this._cachedMeta; + const iScale = meta.iScale; + const metasets = iScale.getMatchingVisibleMetas(this._type); + const stacked = iScale.options.stacked; + const ilen = metasets.length; + const stacks = []; + let i, item; + for (i = 0; i < ilen; ++i) { + item = metasets[i]; + if (!item.controller.options.grouped) { + continue; + } + if (typeof dataIndex !== 'undefined') { + const val = item.controller.getParsed(dataIndex)[ + item.controller._cachedMeta.vScale.axis + ]; + if (isNullOrUndef(val) || isNaN(val)) { + continue; + } + } + if (stacked === false || stacks.indexOf(item.stack) === -1 || + (stacked === undefined && item.stack === undefined)) { + stacks.push(item.stack); + } + if (item.index === last) { + break; + } + } + if (!stacks.length) { + stacks.push(undefined); + } + return stacks; + } + _getStackCount(index) { + return this._getStacks(undefined, index).length; + } + _getStackIndex(datasetIndex, name, dataIndex) { + const stacks = this._getStacks(datasetIndex, dataIndex); + const index = (name !== undefined) + ? stacks.indexOf(name) + : -1; + return (index === -1) + ? stacks.length - 1 + : index; + } + _getRuler() { + const opts = this.options; + const meta = this._cachedMeta; + const iScale = meta.iScale; + const pixels = []; + let i, ilen; + for (i = 0, ilen = meta.data.length; i < ilen; ++i) { + pixels.push(iScale.getPixelForValue(this.getParsed(i)[iScale.axis], i)); + } + const barThickness = opts.barThickness; + const min = barThickness || computeMinSampleSize(meta); + return { + min, + pixels, + start: iScale._startPixel, + end: iScale._endPixel, + stackCount: this._getStackCount(), + scale: iScale, + grouped: opts.grouped, + ratio: barThickness ? 1 : opts.categoryPercentage * opts.barPercentage + }; + } + _calculateBarValuePixels(index) { + const {_cachedMeta: {vScale, _stacked}, options: {base: baseValue, minBarLength}} = this; + const actualBase = baseValue || 0; + const parsed = this.getParsed(index); + const custom = parsed._custom; + const floating = isFloatBar(custom); + let value = parsed[vScale.axis]; + let start = 0; + let length = _stacked ? this.applyStack(vScale, parsed, _stacked) : value; + let head, size; + if (length !== value) { + start = length - value; + length = value; + } + if (floating) { + value = custom.barStart; + length = custom.barEnd - custom.barStart; + if (value !== 0 && sign(value) !== sign(custom.barEnd)) { + start = 0; + } + start += value; + } + const startValue = !isNullOrUndef(baseValue) && !floating ? baseValue : start; + let base = vScale.getPixelForValue(startValue); + if (this.chart.getDataVisibility(index)) { + head = vScale.getPixelForValue(start + length); + } else { + head = base; + } + size = head - base; + if (Math.abs(size) < minBarLength) { + size = barSign(size, vScale, actualBase) * minBarLength; + if (value === actualBase) { + base -= size / 2; + } + head = base + size; + } + if (base === vScale.getPixelForValue(actualBase)) { + const halfGrid = sign(size) * vScale.getLineWidthForValue(actualBase) / 2; + base += halfGrid; + size -= halfGrid; + } + return { + size, + base, + head, + center: head + size / 2 + }; + } + _calculateBarIndexPixels(index, ruler) { + const scale = ruler.scale; + const options = this.options; + const skipNull = options.skipNull; + const maxBarThickness = valueOrDefault(options.maxBarThickness, Infinity); + let center, size; + if (ruler.grouped) { + const stackCount = skipNull ? this._getStackCount(index) : ruler.stackCount; + const range = options.barThickness === 'flex' + ? computeFlexCategoryTraits(index, ruler, options, stackCount) + : computeFitCategoryTraits(index, ruler, options, stackCount); + const stackIndex = this._getStackIndex(this.index, this._cachedMeta.stack, skipNull ? index : undefined); + center = range.start + (range.chunk * stackIndex) + (range.chunk / 2); + size = Math.min(maxBarThickness, range.chunk * range.ratio); + } else { + center = scale.getPixelForValue(this.getParsed(index)[scale.axis], index); + size = Math.min(maxBarThickness, ruler.min * ruler.ratio); + } + return { + base: center - size / 2, + head: center + size / 2, + center, + size + }; + } + draw() { + const meta = this._cachedMeta; + const vScale = meta.vScale; + const rects = meta.data; + const ilen = rects.length; + let i = 0; + for (; i < ilen; ++i) { + if (this.getParsed(i)[vScale.axis] !== null) { + rects[i].draw(this._ctx); + } + } + } +} +BarController.id = 'bar'; +BarController.defaults = { + datasetElementType: false, + dataElementType: 'bar', + categoryPercentage: 0.8, + barPercentage: 0.9, + grouped: true, + animations: { + numbers: { + type: 'number', + properties: ['x', 'y', 'base', 'width', 'height'] + } + } +}; +BarController.overrides = { + scales: { + _index_: { + type: 'category', + offset: true, + grid: { + offset: true + } + }, + _value_: { + type: 'linear', + beginAtZero: true, + } + } +}; + +class BubbleController extends DatasetController { + initialize() { + this.enableOptionSharing = true; + super.initialize(); + } + parsePrimitiveData(meta, data, start, count) { + const parsed = super.parsePrimitiveData(meta, data, start, count); + for (let i = 0; i < parsed.length; i++) { + parsed[i]._custom = this.resolveDataElementOptions(i + start).radius; + } + return parsed; + } + parseArrayData(meta, data, start, count) { + const parsed = super.parseArrayData(meta, data, start, count); + for (let i = 0; i < parsed.length; i++) { + const item = data[start + i]; + parsed[i]._custom = valueOrDefault(item[2], this.resolveDataElementOptions(i + start).radius); + } + return parsed; + } + parseObjectData(meta, data, start, count) { + const parsed = super.parseObjectData(meta, data, start, count); + for (let i = 0; i < parsed.length; i++) { + const item = data[start + i]; + parsed[i]._custom = valueOrDefault(item && item.r && +item.r, this.resolveDataElementOptions(i + start).radius); + } + return parsed; + } + getMaxOverflow() { + const data = this._cachedMeta.data; + let max = 0; + for (let i = data.length - 1; i >= 0; --i) { + max = Math.max(max, data[i].size(this.resolveDataElementOptions(i)) / 2); + } + return max > 0 && max; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const {xScale, yScale} = meta; + const parsed = this.getParsed(index); + const x = xScale.getLabelForValue(parsed.x); + const y = yScale.getLabelForValue(parsed.y); + const r = parsed._custom; + return { + label: meta.label, + value: '(' + x + ', ' + y + (r ? ', ' + r : '') + ')' + }; + } + update(mode) { + const points = this._cachedMeta.data; + this.updateElements(points, 0, points.length, mode); + } + updateElements(points, start, count, mode) { + const reset = mode === 'reset'; + const {iScale, vScale} = this._cachedMeta; + const firstOpts = this.resolveDataElementOptions(start, mode); + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions); + const iAxis = iScale.axis; + const vAxis = vScale.axis; + for (let i = start; i < start + count; i++) { + const point = points[i]; + const parsed = !reset && this.getParsed(i); + const properties = {}; + const iPixel = properties[iAxis] = reset ? iScale.getPixelForDecimal(0.5) : iScale.getPixelForValue(parsed[iAxis]); + const vPixel = properties[vAxis] = reset ? vScale.getBasePixel() : vScale.getPixelForValue(parsed[vAxis]); + properties.skip = isNaN(iPixel) || isNaN(vPixel); + if (includeOptions) { + properties.options = this.resolveDataElementOptions(i, point.active ? 'active' : mode); + if (reset) { + properties.options.radius = 0; + } + } + this.updateElement(point, i, properties, mode); + } + this.updateSharedOptions(sharedOptions, mode, firstOpts); + } + resolveDataElementOptions(index, mode) { + const parsed = this.getParsed(index); + let values = super.resolveDataElementOptions(index, mode); + if (values.$shared) { + values = Object.assign({}, values, {$shared: false}); + } + const radius = values.radius; + if (mode !== 'active') { + values.radius = 0; + } + values.radius += valueOrDefault(parsed && parsed._custom, radius); + return values; + } +} +BubbleController.id = 'bubble'; +BubbleController.defaults = { + datasetElementType: false, + dataElementType: 'point', + animations: { + numbers: { + type: 'number', + properties: ['x', 'y', 'borderWidth', 'radius'] + } + } +}; +BubbleController.overrides = { + scales: { + x: { + type: 'linear' + }, + y: { + type: 'linear' + } + }, + plugins: { + tooltip: { + callbacks: { + title() { + return ''; + } + } + } + } +}; + +function getRatioAndOffset(rotation, circumference, cutout) { + let ratioX = 1; + let ratioY = 1; + let offsetX = 0; + let offsetY = 0; + if (circumference < TAU) { + const startAngle = rotation; + const endAngle = startAngle + circumference; + const startX = Math.cos(startAngle); + const startY = Math.sin(startAngle); + const endX = Math.cos(endAngle); + const endY = Math.sin(endAngle); + const calcMax = (angle, a, b) => _angleBetween(angle, startAngle, endAngle, true) ? 1 : Math.max(a, a * cutout, b, b * cutout); + const calcMin = (angle, a, b) => _angleBetween(angle, startAngle, endAngle, true) ? -1 : Math.min(a, a * cutout, b, b * cutout); + const maxX = calcMax(0, startX, endX); + const maxY = calcMax(HALF_PI, startY, endY); + const minX = calcMin(PI, startX, endX); + const minY = calcMin(PI + HALF_PI, startY, endY); + ratioX = (maxX - minX) / 2; + ratioY = (maxY - minY) / 2; + offsetX = -(maxX + minX) / 2; + offsetY = -(maxY + minY) / 2; + } + return {ratioX, ratioY, offsetX, offsetY}; +} +class DoughnutController extends DatasetController { + constructor(chart, datasetIndex) { + super(chart, datasetIndex); + this.enableOptionSharing = true; + this.innerRadius = undefined; + this.outerRadius = undefined; + this.offsetX = undefined; + this.offsetY = undefined; + } + linkScales() {} + parse(start, count) { + const data = this.getDataset().data; + const meta = this._cachedMeta; + if (this._parsing === false) { + meta._parsed = data; + } else { + let getter = (i) => +data[i]; + if (isObject(data[start])) { + const {key = 'value'} = this._parsing; + getter = (i) => +resolveObjectKey(data[i], key); + } + let i, ilen; + for (i = start, ilen = start + count; i < ilen; ++i) { + meta._parsed[i] = getter(i); + } + } + } + _getRotation() { + return toRadians(this.options.rotation - 90); + } + _getCircumference() { + return toRadians(this.options.circumference); + } + _getRotationExtents() { + let min = TAU; + let max = -TAU; + for (let i = 0; i < this.chart.data.datasets.length; ++i) { + if (this.chart.isDatasetVisible(i)) { + const controller = this.chart.getDatasetMeta(i).controller; + const rotation = controller._getRotation(); + const circumference = controller._getCircumference(); + min = Math.min(min, rotation); + max = Math.max(max, rotation + circumference); + } + } + return { + rotation: min, + circumference: max - min, + }; + } + update(mode) { + const chart = this.chart; + const {chartArea} = chart; + const meta = this._cachedMeta; + const arcs = meta.data; + const spacing = this.getMaxBorderWidth() + this.getMaxOffset(arcs) + this.options.spacing; + const maxSize = Math.max((Math.min(chartArea.width, chartArea.height) - spacing) / 2, 0); + const cutout = Math.min(toPercentage(this.options.cutout, maxSize), 1); + const chartWeight = this._getRingWeight(this.index); + const {circumference, rotation} = this._getRotationExtents(); + const {ratioX, ratioY, offsetX, offsetY} = getRatioAndOffset(rotation, circumference, cutout); + const maxWidth = (chartArea.width - spacing) / ratioX; + const maxHeight = (chartArea.height - spacing) / ratioY; + const maxRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0); + const outerRadius = toDimension(this.options.radius, maxRadius); + const innerRadius = Math.max(outerRadius * cutout, 0); + const radiusLength = (outerRadius - innerRadius) / this._getVisibleDatasetWeightTotal(); + this.offsetX = offsetX * outerRadius; + this.offsetY = offsetY * outerRadius; + meta.total = this.calculateTotal(); + this.outerRadius = outerRadius - radiusLength * this._getRingWeightOffset(this.index); + this.innerRadius = Math.max(this.outerRadius - radiusLength * chartWeight, 0); + this.updateElements(arcs, 0, arcs.length, mode); + } + _circumference(i, reset) { + const opts = this.options; + const meta = this._cachedMeta; + const circumference = this._getCircumference(); + if ((reset && opts.animation.animateRotate) || !this.chart.getDataVisibility(i) || meta._parsed[i] === null || meta.data[i].hidden) { + return 0; + } + return this.calculateCircumference(meta._parsed[i] * circumference / TAU); + } + updateElements(arcs, start, count, mode) { + const reset = mode === 'reset'; + const chart = this.chart; + const chartArea = chart.chartArea; + const opts = chart.options; + const animationOpts = opts.animation; + const centerX = (chartArea.left + chartArea.right) / 2; + const centerY = (chartArea.top + chartArea.bottom) / 2; + const animateScale = reset && animationOpts.animateScale; + const innerRadius = animateScale ? 0 : this.innerRadius; + const outerRadius = animateScale ? 0 : this.outerRadius; + const firstOpts = this.resolveDataElementOptions(start, mode); + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions); + let startAngle = this._getRotation(); + let i; + for (i = 0; i < start; ++i) { + startAngle += this._circumference(i, reset); + } + for (i = start; i < start + count; ++i) { + const circumference = this._circumference(i, reset); + const arc = arcs[i]; + const properties = { + x: centerX + this.offsetX, + y: centerY + this.offsetY, + startAngle, + endAngle: startAngle + circumference, + circumference, + outerRadius, + innerRadius + }; + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, arc.active ? 'active' : mode); + } + startAngle += circumference; + this.updateElement(arc, i, properties, mode); + } + this.updateSharedOptions(sharedOptions, mode, firstOpts); + } + calculateTotal() { + const meta = this._cachedMeta; + const metaData = meta.data; + let total = 0; + let i; + for (i = 0; i < metaData.length; i++) { + const value = meta._parsed[i]; + if (value !== null && !isNaN(value) && this.chart.getDataVisibility(i) && !metaData[i].hidden) { + total += Math.abs(value); + } + } + return total; + } + calculateCircumference(value) { + const total = this._cachedMeta.total; + if (total > 0 && !isNaN(value)) { + return TAU * (Math.abs(value) / total); + } + return 0; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const chart = this.chart; + const labels = chart.data.labels || []; + const value = formatNumber(meta._parsed[index], chart.options.locale); + return { + label: labels[index] || '', + value, + }; + } + getMaxBorderWidth(arcs) { + let max = 0; + const chart = this.chart; + let i, ilen, meta, controller, options; + if (!arcs) { + for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) { + if (chart.isDatasetVisible(i)) { + meta = chart.getDatasetMeta(i); + arcs = meta.data; + controller = meta.controller; + break; + } + } + } + if (!arcs) { + return 0; + } + for (i = 0, ilen = arcs.length; i < ilen; ++i) { + options = controller.resolveDataElementOptions(i); + if (options.borderAlign !== 'inner') { + max = Math.max(max, options.borderWidth || 0, options.hoverBorderWidth || 0); + } + } + return max; + } + getMaxOffset(arcs) { + let max = 0; + for (let i = 0, ilen = arcs.length; i < ilen; ++i) { + const options = this.resolveDataElementOptions(i); + max = Math.max(max, options.offset || 0, options.hoverOffset || 0); + } + return max; + } + _getRingWeightOffset(datasetIndex) { + let ringWeightOffset = 0; + for (let i = 0; i < datasetIndex; ++i) { + if (this.chart.isDatasetVisible(i)) { + ringWeightOffset += this._getRingWeight(i); + } + } + return ringWeightOffset; + } + _getRingWeight(datasetIndex) { + return Math.max(valueOrDefault(this.chart.data.datasets[datasetIndex].weight, 1), 0); + } + _getVisibleDatasetWeightTotal() { + return this._getRingWeightOffset(this.chart.data.datasets.length) || 1; + } +} +DoughnutController.id = 'doughnut'; +DoughnutController.defaults = { + datasetElementType: false, + dataElementType: 'arc', + animation: { + animateRotate: true, + animateScale: false + }, + animations: { + numbers: { + type: 'number', + properties: ['circumference', 'endAngle', 'innerRadius', 'outerRadius', 'startAngle', 'x', 'y', 'offset', 'borderWidth', 'spacing'] + }, + }, + cutout: '50%', + rotation: 0, + circumference: 360, + radius: '100%', + spacing: 0, + indexAxis: 'r', +}; +DoughnutController.descriptors = { + _scriptable: (name) => name !== 'spacing', + _indexable: (name) => name !== 'spacing', +}; +DoughnutController.overrides = { + aspectRatio: 1, + plugins: { + legend: { + labels: { + generateLabels(chart) { + const data = chart.data; + if (data.labels.length && data.datasets.length) { + const {labels: {pointStyle}} = chart.legend.options; + return data.labels.map((label, i) => { + const meta = chart.getDatasetMeta(0); + const style = meta.controller.getStyle(i); + return { + text: label, + fillStyle: style.backgroundColor, + strokeStyle: style.borderColor, + lineWidth: style.borderWidth, + pointStyle: pointStyle, + hidden: !chart.getDataVisibility(i), + index: i + }; + }); + } + return []; + } + }, + onClick(e, legendItem, legend) { + legend.chart.toggleDataVisibility(legendItem.index); + legend.chart.update(); + } + }, + tooltip: { + callbacks: { + title() { + return ''; + }, + label(tooltipItem) { + let dataLabel = tooltipItem.label; + const value = ': ' + tooltipItem.formattedValue; + if (isArray(dataLabel)) { + dataLabel = dataLabel.slice(); + dataLabel[0] += value; + } else { + dataLabel += value; + } + return dataLabel; + } + } + } + } +}; + +class LineController extends DatasetController { + initialize() { + this.enableOptionSharing = true; + super.initialize(); + } + update(mode) { + const meta = this._cachedMeta; + const {dataset: line, data: points = [], _dataset} = meta; + const animationsDisabled = this.chart._animationsDisabled; + let {start, count} = getStartAndCountOfVisiblePoints(meta, points, animationsDisabled); + this._drawStart = start; + this._drawCount = count; + if (scaleRangesChanged(meta)) { + start = 0; + count = points.length; + } + line._chart = this.chart; + line._datasetIndex = this.index; + line._decimated = !!_dataset._decimated; + line.points = points; + const options = this.resolveDatasetElementOptions(mode); + if (!this.options.showLine) { + options.borderWidth = 0; + } + options.segment = this.options.segment; + this.updateElement(line, undefined, { + animated: !animationsDisabled, + options + }, mode); + this.updateElements(points, start, count, mode); + } + updateElements(points, start, count, mode) { + const reset = mode === 'reset'; + const {iScale, vScale, _stacked, _dataset} = this._cachedMeta; + const firstOpts = this.resolveDataElementOptions(start, mode); + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions); + const iAxis = iScale.axis; + const vAxis = vScale.axis; + const {spanGaps, segment} = this.options; + const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY; + const directUpdate = this.chart._animationsDisabled || reset || mode === 'none'; + let prevParsed = start > 0 && this.getParsed(start - 1); + for (let i = start; i < start + count; ++i) { + const point = points[i]; + const parsed = this.getParsed(i); + const properties = directUpdate ? point : {}; + const nullData = isNullOrUndef(parsed[vAxis]); + const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i); + const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i); + properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData; + properties.stop = i > 0 && (parsed[iAxis] - prevParsed[iAxis]) > maxGapLength; + if (segment) { + properties.parsed = parsed; + properties.raw = _dataset.data[i]; + } + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode); + } + if (!directUpdate) { + this.updateElement(point, i, properties, mode); + } + prevParsed = parsed; + } + this.updateSharedOptions(sharedOptions, mode, firstOpts); + } + getMaxOverflow() { + const meta = this._cachedMeta; + const dataset = meta.dataset; + const border = dataset.options && dataset.options.borderWidth || 0; + const data = meta.data || []; + if (!data.length) { + return border; + } + const firstPoint = data[0].size(this.resolveDataElementOptions(0)); + const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1)); + return Math.max(border, firstPoint, lastPoint) / 2; + } + draw() { + const meta = this._cachedMeta; + meta.dataset.updateControlPoints(this.chart.chartArea, meta.iScale.axis); + super.draw(); + } +} +LineController.id = 'line'; +LineController.defaults = { + datasetElementType: 'line', + dataElementType: 'point', + showLine: true, + spanGaps: false, +}; +LineController.overrides = { + scales: { + _index_: { + type: 'category', + }, + _value_: { + type: 'linear', + }, + } +}; +function getStartAndCountOfVisiblePoints(meta, points, animationsDisabled) { + const pointCount = points.length; + let start = 0; + let count = pointCount; + if (meta._sorted) { + const {iScale, _parsed} = meta; + const axis = iScale.axis; + const {min, max, minDefined, maxDefined} = iScale.getUserBounds(); + if (minDefined) { + start = _limitValue(Math.min( + _lookupByKey(_parsed, iScale.axis, min).lo, + animationsDisabled ? pointCount : _lookupByKey(points, axis, iScale.getPixelForValue(min)).lo), + 0, pointCount - 1); + } + if (maxDefined) { + count = _limitValue(Math.max( + _lookupByKey(_parsed, iScale.axis, max).hi + 1, + animationsDisabled ? 0 : _lookupByKey(points, axis, iScale.getPixelForValue(max)).hi + 1), + start, pointCount) - start; + } else { + count = pointCount - start; + } + } + return {start, count}; +} +function scaleRangesChanged(meta) { + const {xScale, yScale, _scaleRanges} = meta; + const newRanges = { + xmin: xScale.min, + xmax: xScale.max, + ymin: yScale.min, + ymax: yScale.max + }; + if (!_scaleRanges) { + meta._scaleRanges = newRanges; + return true; + } + const changed = _scaleRanges.xmin !== xScale.min + || _scaleRanges.xmax !== xScale.max + || _scaleRanges.ymin !== yScale.min + || _scaleRanges.ymax !== yScale.max; + Object.assign(_scaleRanges, newRanges); + return changed; +} + +class PolarAreaController extends DatasetController { + constructor(chart, datasetIndex) { + super(chart, datasetIndex); + this.innerRadius = undefined; + this.outerRadius = undefined; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const chart = this.chart; + const labels = chart.data.labels || []; + const value = formatNumber(meta._parsed[index].r, chart.options.locale); + return { + label: labels[index] || '', + value, + }; + } + update(mode) { + const arcs = this._cachedMeta.data; + this._updateRadius(); + this.updateElements(arcs, 0, arcs.length, mode); + } + _updateRadius() { + const chart = this.chart; + const chartArea = chart.chartArea; + const opts = chart.options; + const minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top); + const outerRadius = Math.max(minSize / 2, 0); + const innerRadius = Math.max(opts.cutoutPercentage ? (outerRadius / 100) * (opts.cutoutPercentage) : 1, 0); + const radiusLength = (outerRadius - innerRadius) / chart.getVisibleDatasetCount(); + this.outerRadius = outerRadius - (radiusLength * this.index); + this.innerRadius = this.outerRadius - radiusLength; + } + updateElements(arcs, start, count, mode) { + const reset = mode === 'reset'; + const chart = this.chart; + const dataset = this.getDataset(); + const opts = chart.options; + const animationOpts = opts.animation; + const scale = this._cachedMeta.rScale; + const centerX = scale.xCenter; + const centerY = scale.yCenter; + const datasetStartAngle = scale.getIndexAngle(0) - 0.5 * PI; + let angle = datasetStartAngle; + let i; + const defaultAngle = 360 / this.countVisibleElements(); + for (i = 0; i < start; ++i) { + angle += this._computeAngle(i, mode, defaultAngle); + } + for (i = start; i < start + count; i++) { + const arc = arcs[i]; + let startAngle = angle; + let endAngle = angle + this._computeAngle(i, mode, defaultAngle); + let outerRadius = chart.getDataVisibility(i) ? scale.getDistanceFromCenterForValue(dataset.data[i]) : 0; + angle = endAngle; + if (reset) { + if (animationOpts.animateScale) { + outerRadius = 0; + } + if (animationOpts.animateRotate) { + startAngle = endAngle = datasetStartAngle; + } + } + const properties = { + x: centerX, + y: centerY, + innerRadius: 0, + outerRadius, + startAngle, + endAngle, + options: this.resolveDataElementOptions(i, arc.active ? 'active' : mode) + }; + this.updateElement(arc, i, properties, mode); + } + } + countVisibleElements() { + const dataset = this.getDataset(); + const meta = this._cachedMeta; + let count = 0; + meta.data.forEach((element, index) => { + if (!isNaN(dataset.data[index]) && this.chart.getDataVisibility(index)) { + count++; + } + }); + return count; + } + _computeAngle(index, mode, defaultAngle) { + return this.chart.getDataVisibility(index) + ? toRadians(this.resolveDataElementOptions(index, mode).angle || defaultAngle) + : 0; + } +} +PolarAreaController.id = 'polarArea'; +PolarAreaController.defaults = { + dataElementType: 'arc', + animation: { + animateRotate: true, + animateScale: true + }, + animations: { + numbers: { + type: 'number', + properties: ['x', 'y', 'startAngle', 'endAngle', 'innerRadius', 'outerRadius'] + }, + }, + indexAxis: 'r', + startAngle: 0, +}; +PolarAreaController.overrides = { + aspectRatio: 1, + plugins: { + legend: { + labels: { + generateLabels(chart) { + const data = chart.data; + if (data.labels.length && data.datasets.length) { + const {labels: {pointStyle}} = chart.legend.options; + return data.labels.map((label, i) => { + const meta = chart.getDatasetMeta(0); + const style = meta.controller.getStyle(i); + return { + text: label, + fillStyle: style.backgroundColor, + strokeStyle: style.borderColor, + lineWidth: style.borderWidth, + pointStyle: pointStyle, + hidden: !chart.getDataVisibility(i), + index: i + }; + }); + } + return []; + } + }, + onClick(e, legendItem, legend) { + legend.chart.toggleDataVisibility(legendItem.index); + legend.chart.update(); + } + }, + tooltip: { + callbacks: { + title() { + return ''; + }, + label(context) { + return context.chart.data.labels[context.dataIndex] + ': ' + context.formattedValue; + } + } + } + }, + scales: { + r: { + type: 'radialLinear', + angleLines: { + display: false + }, + beginAtZero: true, + grid: { + circular: true + }, + pointLabels: { + display: false + }, + startAngle: 0 + } + } +}; + +class PieController extends DoughnutController { +} +PieController.id = 'pie'; +PieController.defaults = { + cutout: 0, + rotation: 0, + circumference: 360, + radius: '100%' +}; + +class RadarController extends DatasetController { + getLabelAndValue(index) { + const vScale = this._cachedMeta.vScale; + const parsed = this.getParsed(index); + return { + label: vScale.getLabels()[index], + value: '' + vScale.getLabelForValue(parsed[vScale.axis]) + }; + } + update(mode) { + const meta = this._cachedMeta; + const line = meta.dataset; + const points = meta.data || []; + const labels = meta.iScale.getLabels(); + line.points = points; + if (mode !== 'resize') { + const options = this.resolveDatasetElementOptions(mode); + if (!this.options.showLine) { + options.borderWidth = 0; + } + const properties = { + _loop: true, + _fullLoop: labels.length === points.length, + options + }; + this.updateElement(line, undefined, properties, mode); + } + this.updateElements(points, 0, points.length, mode); + } + updateElements(points, start, count, mode) { + const dataset = this.getDataset(); + const scale = this._cachedMeta.rScale; + const reset = mode === 'reset'; + for (let i = start; i < start + count; i++) { + const point = points[i]; + const options = this.resolveDataElementOptions(i, point.active ? 'active' : mode); + const pointPosition = scale.getPointPositionForValue(i, dataset.data[i]); + const x = reset ? scale.xCenter : pointPosition.x; + const y = reset ? scale.yCenter : pointPosition.y; + const properties = { + x, + y, + angle: pointPosition.angle, + skip: isNaN(x) || isNaN(y), + options + }; + this.updateElement(point, i, properties, mode); + } + } +} +RadarController.id = 'radar'; +RadarController.defaults = { + datasetElementType: 'line', + dataElementType: 'point', + indexAxis: 'r', + showLine: true, + elements: { + line: { + fill: 'start' + } + }, +}; +RadarController.overrides = { + aspectRatio: 1, + scales: { + r: { + type: 'radialLinear', + } + } +}; + +class ScatterController extends LineController { +} +ScatterController.id = 'scatter'; +ScatterController.defaults = { + showLine: false, + fill: false +}; +ScatterController.overrides = { + interaction: { + mode: 'point' + }, + plugins: { + tooltip: { + callbacks: { + title() { + return ''; + }, + label(item) { + return '(' + item.label + ', ' + item.formattedValue + ')'; + } + } + } + }, + scales: { + x: { + type: 'linear' + }, + y: { + type: 'linear' + } + } +}; + +var controllers = /*#__PURE__*/Object.freeze({ +__proto__: null, +BarController: BarController, +BubbleController: BubbleController, +DoughnutController: DoughnutController, +LineController: LineController, +PolarAreaController: PolarAreaController, +PieController: PieController, +RadarController: RadarController, +ScatterController: ScatterController +}); + +function abstract() { + throw new Error('This method is not implemented: Check that a complete date adapter is provided.'); +} +class DateAdapter { + constructor(options) { + this.options = options || {}; + } + formats() { + return abstract(); + } + parse(value, format) { + return abstract(); + } + format(timestamp, format) { + return abstract(); + } + add(timestamp, amount, unit) { + return abstract(); + } + diff(a, b, unit) { + return abstract(); + } + startOf(timestamp, unit, weekday) { + return abstract(); + } + endOf(timestamp, unit) { + return abstract(); + } +} +DateAdapter.override = function(members) { + Object.assign(DateAdapter.prototype, members); +}; +var adapters = { + _date: DateAdapter +}; + +function getRelativePosition(e, chart) { + if ('native' in e) { + return { + x: e.x, + y: e.y + }; + } + return getRelativePosition$1(e, chart); +} +function evaluateAllVisibleItems(chart, handler) { + const metasets = chart.getSortedVisibleDatasetMetas(); + let index, data, element; + for (let i = 0, ilen = metasets.length; i < ilen; ++i) { + ({index, data} = metasets[i]); + for (let j = 0, jlen = data.length; j < jlen; ++j) { + element = data[j]; + if (!element.skip) { + handler(element, index, j); + } + } + } +} +function binarySearch(metaset, axis, value, intersect) { + const {controller, data, _sorted} = metaset; + const iScale = controller._cachedMeta.iScale; + if (iScale && axis === iScale.axis && axis !== 'r' && _sorted && data.length) { + const lookupMethod = iScale._reversePixels ? _rlookupByKey : _lookupByKey; + if (!intersect) { + return lookupMethod(data, axis, value); + } else if (controller._sharedOptions) { + const el = data[0]; + const range = typeof el.getRange === 'function' && el.getRange(axis); + if (range) { + const start = lookupMethod(data, axis, value - range); + const end = lookupMethod(data, axis, value + range); + return {lo: start.lo, hi: end.hi}; + } + } + } + return {lo: 0, hi: data.length - 1}; +} +function optimizedEvaluateItems(chart, axis, position, handler, intersect) { + const metasets = chart.getSortedVisibleDatasetMetas(); + const value = position[axis]; + for (let i = 0, ilen = metasets.length; i < ilen; ++i) { + const {index, data} = metasets[i]; + const {lo, hi} = binarySearch(metasets[i], axis, value, intersect); + for (let j = lo; j <= hi; ++j) { + const element = data[j]; + if (!element.skip) { + handler(element, index, j); + } + } + } +} +function getDistanceMetricForAxis(axis) { + const useX = axis.indexOf('x') !== -1; + const useY = axis.indexOf('y') !== -1; + return function(pt1, pt2) { + const deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0; + const deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0; + return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2)); + }; +} +function getIntersectItems(chart, position, axis, useFinalPosition) { + const items = []; + if (!_isPointInArea(position, chart.chartArea, chart._minPadding)) { + return items; + } + const evaluationFunc = function(element, datasetIndex, index) { + if (element.inRange(position.x, position.y, useFinalPosition)) { + items.push({element, datasetIndex, index}); + } + }; + optimizedEvaluateItems(chart, axis, position, evaluationFunc, true); + return items; +} +function getNearestRadialItems(chart, position, axis, useFinalPosition) { + let items = []; + function evaluationFunc(element, datasetIndex, index) { + const {startAngle, endAngle} = element.getProps(['startAngle', 'endAngle'], useFinalPosition); + const {angle} = getAngleFromPoint(element, {x: position.x, y: position.y}); + if (_angleBetween(angle, startAngle, endAngle)) { + items.push({element, datasetIndex, index}); + } + } + optimizedEvaluateItems(chart, axis, position, evaluationFunc); + return items; +} +function getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition) { + let items = []; + const distanceMetric = getDistanceMetricForAxis(axis); + let minDistance = Number.POSITIVE_INFINITY; + function evaluationFunc(element, datasetIndex, index) { + const inRange = element.inRange(position.x, position.y, useFinalPosition); + if (intersect && !inRange) { + return; + } + const center = element.getCenterPoint(useFinalPosition); + const pointInArea = _isPointInArea(center, chart.chartArea, chart._minPadding); + if (!pointInArea && !inRange) { + return; + } + const distance = distanceMetric(position, center); + if (distance < minDistance) { + items = [{element, datasetIndex, index}]; + minDistance = distance; + } else if (distance === minDistance) { + items.push({element, datasetIndex, index}); + } + } + optimizedEvaluateItems(chart, axis, position, evaluationFunc); + return items; +} +function getNearestItems(chart, position, axis, intersect, useFinalPosition) { + if (!_isPointInArea(position, chart.chartArea, chart._minPadding)) { + return []; + } + return axis === 'r' && !intersect + ? getNearestRadialItems(chart, position, axis, useFinalPosition) + : getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition); +} +function getAxisItems(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const items = []; + const axis = options.axis; + const rangeMethod = axis === 'x' ? 'inXRange' : 'inYRange'; + let intersectsItem = false; + evaluateAllVisibleItems(chart, (element, datasetIndex, index) => { + if (element[rangeMethod](position[axis], useFinalPosition)) { + items.push({element, datasetIndex, index}); + } + if (element.inRange(position.x, position.y, useFinalPosition)) { + intersectsItem = true; + } + }); + if (options.intersect && !intersectsItem) { + return []; + } + return items; +} +var Interaction = { + modes: { + index(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'x'; + const items = options.intersect + ? getIntersectItems(chart, position, axis, useFinalPosition) + : getNearestItems(chart, position, axis, false, useFinalPosition); + const elements = []; + if (!items.length) { + return []; + } + chart.getSortedVisibleDatasetMetas().forEach((meta) => { + const index = items[0].index; + const element = meta.data[index]; + if (element && !element.skip) { + elements.push({element, datasetIndex: meta.index, index}); + } + }); + return elements; + }, + dataset(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'xy'; + let items = options.intersect + ? getIntersectItems(chart, position, axis, useFinalPosition) : + getNearestItems(chart, position, axis, false, useFinalPosition); + if (items.length > 0) { + const datasetIndex = items[0].datasetIndex; + const data = chart.getDatasetMeta(datasetIndex).data; + items = []; + for (let i = 0; i < data.length; ++i) { + items.push({element: data[i], datasetIndex, index: i}); + } + } + return items; + }, + point(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'xy'; + return getIntersectItems(chart, position, axis, useFinalPosition); + }, + nearest(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'xy'; + return getNearestItems(chart, position, axis, options.intersect, useFinalPosition); + }, + x(chart, e, options, useFinalPosition) { + return getAxisItems(chart, e, {axis: 'x', intersect: options.intersect}, useFinalPosition); + }, + y(chart, e, options, useFinalPosition) { + return getAxisItems(chart, e, {axis: 'y', intersect: options.intersect}, useFinalPosition); + } + } +}; + +const STATIC_POSITIONS = ['left', 'top', 'right', 'bottom']; +function filterByPosition(array, position) { + return array.filter(v => v.pos === position); +} +function filterDynamicPositionByAxis(array, axis) { + return array.filter(v => STATIC_POSITIONS.indexOf(v.pos) === -1 && v.box.axis === axis); +} +function sortByWeight(array, reverse) { + return array.sort((a, b) => { + const v0 = reverse ? b : a; + const v1 = reverse ? a : b; + return v0.weight === v1.weight ? + v0.index - v1.index : + v0.weight - v1.weight; + }); +} +function wrapBoxes(boxes) { + const layoutBoxes = []; + let i, ilen, box, pos, stack, stackWeight; + for (i = 0, ilen = (boxes || []).length; i < ilen; ++i) { + box = boxes[i]; + ({position: pos, options: {stack, stackWeight = 1}} = box); + layoutBoxes.push({ + index: i, + box, + pos, + horizontal: box.isHorizontal(), + weight: box.weight, + stack: stack && (pos + stack), + stackWeight + }); + } + return layoutBoxes; +} +function buildStacks(layouts) { + const stacks = {}; + for (const wrap of layouts) { + const {stack, pos, stackWeight} = wrap; + if (!stack || !STATIC_POSITIONS.includes(pos)) { + continue; + } + const _stack = stacks[stack] || (stacks[stack] = {count: 0, placed: 0, weight: 0, size: 0}); + _stack.count++; + _stack.weight += stackWeight; + } + return stacks; +} +function setLayoutDims(layouts, params) { + const stacks = buildStacks(layouts); + const {vBoxMaxWidth, hBoxMaxHeight} = params; + let i, ilen, layout; + for (i = 0, ilen = layouts.length; i < ilen; ++i) { + layout = layouts[i]; + const {fullSize} = layout.box; + const stack = stacks[layout.stack]; + const factor = stack && layout.stackWeight / stack.weight; + if (layout.horizontal) { + layout.width = factor ? factor * vBoxMaxWidth : fullSize && params.availableWidth; + layout.height = hBoxMaxHeight; + } else { + layout.width = vBoxMaxWidth; + layout.height = factor ? factor * hBoxMaxHeight : fullSize && params.availableHeight; + } + } + return stacks; +} +function buildLayoutBoxes(boxes) { + const layoutBoxes = wrapBoxes(boxes); + const fullSize = sortByWeight(layoutBoxes.filter(wrap => wrap.box.fullSize), true); + const left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true); + const right = sortByWeight(filterByPosition(layoutBoxes, 'right')); + const top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true); + const bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom')); + const centerHorizontal = filterDynamicPositionByAxis(layoutBoxes, 'x'); + const centerVertical = filterDynamicPositionByAxis(layoutBoxes, 'y'); + return { + fullSize, + leftAndTop: left.concat(top), + rightAndBottom: right.concat(centerVertical).concat(bottom).concat(centerHorizontal), + chartArea: filterByPosition(layoutBoxes, 'chartArea'), + vertical: left.concat(right).concat(centerVertical), + horizontal: top.concat(bottom).concat(centerHorizontal) + }; +} +function getCombinedMax(maxPadding, chartArea, a, b) { + return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]); +} +function updateMaxPadding(maxPadding, boxPadding) { + maxPadding.top = Math.max(maxPadding.top, boxPadding.top); + maxPadding.left = Math.max(maxPadding.left, boxPadding.left); + maxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom); + maxPadding.right = Math.max(maxPadding.right, boxPadding.right); +} +function updateDims(chartArea, params, layout, stacks) { + const {pos, box} = layout; + const maxPadding = chartArea.maxPadding; + if (!isObject(pos)) { + if (layout.size) { + chartArea[pos] -= layout.size; + } + const stack = stacks[layout.stack] || {size: 0, count: 1}; + stack.size = Math.max(stack.size, layout.horizontal ? box.height : box.width); + layout.size = stack.size / stack.count; + chartArea[pos] += layout.size; + } + if (box.getPadding) { + updateMaxPadding(maxPadding, box.getPadding()); + } + const newWidth = Math.max(0, params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right')); + const newHeight = Math.max(0, params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom')); + const widthChanged = newWidth !== chartArea.w; + const heightChanged = newHeight !== chartArea.h; + chartArea.w = newWidth; + chartArea.h = newHeight; + return layout.horizontal + ? {same: widthChanged, other: heightChanged} + : {same: heightChanged, other: widthChanged}; +} +function handleMaxPadding(chartArea) { + const maxPadding = chartArea.maxPadding; + function updatePos(pos) { + const change = Math.max(maxPadding[pos] - chartArea[pos], 0); + chartArea[pos] += change; + return change; + } + chartArea.y += updatePos('top'); + chartArea.x += updatePos('left'); + updatePos('right'); + updatePos('bottom'); +} +function getMargins(horizontal, chartArea) { + const maxPadding = chartArea.maxPadding; + function marginForPositions(positions) { + const margin = {left: 0, top: 0, right: 0, bottom: 0}; + positions.forEach((pos) => { + margin[pos] = Math.max(chartArea[pos], maxPadding[pos]); + }); + return margin; + } + return horizontal + ? marginForPositions(['left', 'right']) + : marginForPositions(['top', 'bottom']); +} +function fitBoxes(boxes, chartArea, params, stacks) { + const refitBoxes = []; + let i, ilen, layout, box, refit, changed; + for (i = 0, ilen = boxes.length, refit = 0; i < ilen; ++i) { + layout = boxes[i]; + box = layout.box; + box.update( + layout.width || chartArea.w, + layout.height || chartArea.h, + getMargins(layout.horizontal, chartArea) + ); + const {same, other} = updateDims(chartArea, params, layout, stacks); + refit |= same && refitBoxes.length; + changed = changed || other; + if (!box.fullSize) { + refitBoxes.push(layout); + } + } + return refit && fitBoxes(refitBoxes, chartArea, params, stacks) || changed; +} +function setBoxDims(box, left, top, width, height) { + box.top = top; + box.left = left; + box.right = left + width; + box.bottom = top + height; + box.width = width; + box.height = height; +} +function placeBoxes(boxes, chartArea, params, stacks) { + const userPadding = params.padding; + let {x, y} = chartArea; + for (const layout of boxes) { + const box = layout.box; + const stack = stacks[layout.stack] || {count: 1, placed: 0, weight: 1}; + const weight = (layout.stackWeight / stack.weight) || 1; + if (layout.horizontal) { + const width = chartArea.w * weight; + const height = stack.size || box.height; + if (defined(stack.start)) { + y = stack.start; + } + if (box.fullSize) { + setBoxDims(box, userPadding.left, y, params.outerWidth - userPadding.right - userPadding.left, height); + } else { + setBoxDims(box, chartArea.left + stack.placed, y, width, height); + } + stack.start = y; + stack.placed += width; + y = box.bottom; + } else { + const height = chartArea.h * weight; + const width = stack.size || box.width; + if (defined(stack.start)) { + x = stack.start; + } + if (box.fullSize) { + setBoxDims(box, x, userPadding.top, width, params.outerHeight - userPadding.bottom - userPadding.top); + } else { + setBoxDims(box, x, chartArea.top + stack.placed, width, height); + } + stack.start = x; + stack.placed += height; + x = box.right; + } + } + chartArea.x = x; + chartArea.y = y; +} +defaults.set('layout', { + autoPadding: true, + padding: { + top: 0, + right: 0, + bottom: 0, + left: 0 + } +}); +var layouts = { + addBox(chart, item) { + if (!chart.boxes) { + chart.boxes = []; + } + item.fullSize = item.fullSize || false; + item.position = item.position || 'top'; + item.weight = item.weight || 0; + item._layers = item._layers || function() { + return [{ + z: 0, + draw(chartArea) { + item.draw(chartArea); + } + }]; + }; + chart.boxes.push(item); + }, + removeBox(chart, layoutItem) { + const index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1; + if (index !== -1) { + chart.boxes.splice(index, 1); + } + }, + configure(chart, item, options) { + item.fullSize = options.fullSize; + item.position = options.position; + item.weight = options.weight; + }, + update(chart, width, height, minPadding) { + if (!chart) { + return; + } + const padding = toPadding(chart.options.layout.padding); + const availableWidth = Math.max(width - padding.width, 0); + const availableHeight = Math.max(height - padding.height, 0); + const boxes = buildLayoutBoxes(chart.boxes); + const verticalBoxes = boxes.vertical; + const horizontalBoxes = boxes.horizontal; + each(chart.boxes, box => { + if (typeof box.beforeLayout === 'function') { + box.beforeLayout(); + } + }); + const visibleVerticalBoxCount = verticalBoxes.reduce((total, wrap) => + wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0) || 1; + const params = Object.freeze({ + outerWidth: width, + outerHeight: height, + padding, + availableWidth, + availableHeight, + vBoxMaxWidth: availableWidth / 2 / visibleVerticalBoxCount, + hBoxMaxHeight: availableHeight / 2 + }); + const maxPadding = Object.assign({}, padding); + updateMaxPadding(maxPadding, toPadding(minPadding)); + const chartArea = Object.assign({ + maxPadding, + w: availableWidth, + h: availableHeight, + x: padding.left, + y: padding.top + }, padding); + const stacks = setLayoutDims(verticalBoxes.concat(horizontalBoxes), params); + fitBoxes(boxes.fullSize, chartArea, params, stacks); + fitBoxes(verticalBoxes, chartArea, params, stacks); + if (fitBoxes(horizontalBoxes, chartArea, params, stacks)) { + fitBoxes(verticalBoxes, chartArea, params, stacks); + } + handleMaxPadding(chartArea); + placeBoxes(boxes.leftAndTop, chartArea, params, stacks); + chartArea.x += chartArea.w; + chartArea.y += chartArea.h; + placeBoxes(boxes.rightAndBottom, chartArea, params, stacks); + chart.chartArea = { + left: chartArea.left, + top: chartArea.top, + right: chartArea.left + chartArea.w, + bottom: chartArea.top + chartArea.h, + height: chartArea.h, + width: chartArea.w, + }; + each(boxes.chartArea, (layout) => { + const box = layout.box; + Object.assign(box, chart.chartArea); + box.update(chartArea.w, chartArea.h, {left: 0, top: 0, right: 0, bottom: 0}); + }); + } +}; + +class BasePlatform { + acquireContext(canvas, aspectRatio) {} + releaseContext(context) { + return false; + } + addEventListener(chart, type, listener) {} + removeEventListener(chart, type, listener) {} + getDevicePixelRatio() { + return 1; + } + getMaximumSize(element, width, height, aspectRatio) { + width = Math.max(0, width || element.width); + height = height || element.height; + return { + width, + height: Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height) + }; + } + isAttached(canvas) { + return true; + } + updateConfig(config) { + } +} + +class BasicPlatform extends BasePlatform { + acquireContext(item) { + return item && item.getContext && item.getContext('2d') || null; + } + updateConfig(config) { + config.options.animation = false; + } +} + +const EXPANDO_KEY = '$chartjs'; +const EVENT_TYPES = { + touchstart: 'mousedown', + touchmove: 'mousemove', + touchend: 'mouseup', + pointerenter: 'mouseenter', + pointerdown: 'mousedown', + pointermove: 'mousemove', + pointerup: 'mouseup', + pointerleave: 'mouseout', + pointerout: 'mouseout' +}; +const isNullOrEmpty = value => value === null || value === ''; +function initCanvas(canvas, aspectRatio) { + const style = canvas.style; + const renderHeight = canvas.getAttribute('height'); + const renderWidth = canvas.getAttribute('width'); + canvas[EXPANDO_KEY] = { + initial: { + height: renderHeight, + width: renderWidth, + style: { + display: style.display, + height: style.height, + width: style.width + } + } + }; + style.display = style.display || 'block'; + style.boxSizing = style.boxSizing || 'border-box'; + if (isNullOrEmpty(renderWidth)) { + const displayWidth = readUsedSize(canvas, 'width'); + if (displayWidth !== undefined) { + canvas.width = displayWidth; + } + } + if (isNullOrEmpty(renderHeight)) { + if (canvas.style.height === '') { + canvas.height = canvas.width / (aspectRatio || 2); + } else { + const displayHeight = readUsedSize(canvas, 'height'); + if (displayHeight !== undefined) { + canvas.height = displayHeight; + } + } + } + return canvas; +} +const eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false; +function addListener(node, type, listener) { + node.addEventListener(type, listener, eventListenerOptions); +} +function removeListener(chart, type, listener) { + chart.canvas.removeEventListener(type, listener, eventListenerOptions); +} +function fromNativeEvent(event, chart) { + const type = EVENT_TYPES[event.type] || event.type; + const {x, y} = getRelativePosition$1(event, chart); + return { + type, + chart, + native: event, + x: x !== undefined ? x : null, + y: y !== undefined ? y : null, + }; +} +function nodeListContains(nodeList, canvas) { + for (const node of nodeList) { + if (node === canvas || node.contains(canvas)) { + return true; + } + } +} +function createAttachObserver(chart, type, listener) { + const canvas = chart.canvas; + const observer = new MutationObserver(entries => { + let trigger = false; + for (const entry of entries) { + trigger = trigger || nodeListContains(entry.addedNodes, canvas); + trigger = trigger && !nodeListContains(entry.removedNodes, canvas); + } + if (trigger) { + listener(); + } + }); + observer.observe(document, {childList: true, subtree: true}); + return observer; +} +function createDetachObserver(chart, type, listener) { + const canvas = chart.canvas; + const observer = new MutationObserver(entries => { + let trigger = false; + for (const entry of entries) { + trigger = trigger || nodeListContains(entry.removedNodes, canvas); + trigger = trigger && !nodeListContains(entry.addedNodes, canvas); + } + if (trigger) { + listener(); + } + }); + observer.observe(document, {childList: true, subtree: true}); + return observer; +} +const drpListeningCharts = new Map(); +let oldDevicePixelRatio = 0; +function onWindowResize() { + const dpr = window.devicePixelRatio; + if (dpr === oldDevicePixelRatio) { + return; + } + oldDevicePixelRatio = dpr; + drpListeningCharts.forEach((resize, chart) => { + if (chart.currentDevicePixelRatio !== dpr) { + resize(); + } + }); +} +function listenDevicePixelRatioChanges(chart, resize) { + if (!drpListeningCharts.size) { + window.addEventListener('resize', onWindowResize); + } + drpListeningCharts.set(chart, resize); +} +function unlistenDevicePixelRatioChanges(chart) { + drpListeningCharts.delete(chart); + if (!drpListeningCharts.size) { + window.removeEventListener('resize', onWindowResize); + } +} +function createResizeObserver(chart, type, listener) { + const canvas = chart.canvas; + const container = canvas && _getParentNode(canvas); + if (!container) { + return; + } + const resize = throttled((width, height) => { + const w = container.clientWidth; + listener(width, height); + if (w < container.clientWidth) { + listener(); + } + }, window); + const observer = new ResizeObserver(entries => { + const entry = entries[0]; + const width = entry.contentRect.width; + const height = entry.contentRect.height; + if (width === 0 && height === 0) { + return; + } + resize(width, height); + }); + observer.observe(container); + listenDevicePixelRatioChanges(chart, resize); + return observer; +} +function releaseObserver(chart, type, observer) { + if (observer) { + observer.disconnect(); + } + if (type === 'resize') { + unlistenDevicePixelRatioChanges(chart); + } +} +function createProxyAndListen(chart, type, listener) { + const canvas = chart.canvas; + const proxy = throttled((event) => { + if (chart.ctx !== null) { + listener(fromNativeEvent(event, chart)); + } + }, chart, (args) => { + const event = args[0]; + return [event, event.offsetX, event.offsetY]; + }); + addListener(canvas, type, proxy); + return proxy; +} +class DomPlatform extends BasePlatform { + acquireContext(canvas, aspectRatio) { + const context = canvas && canvas.getContext && canvas.getContext('2d'); + if (context && context.canvas === canvas) { + initCanvas(canvas, aspectRatio); + return context; + } + return null; + } + releaseContext(context) { + const canvas = context.canvas; + if (!canvas[EXPANDO_KEY]) { + return false; + } + const initial = canvas[EXPANDO_KEY].initial; + ['height', 'width'].forEach((prop) => { + const value = initial[prop]; + if (isNullOrUndef(value)) { + canvas.removeAttribute(prop); + } else { + canvas.setAttribute(prop, value); + } + }); + const style = initial.style || {}; + Object.keys(style).forEach((key) => { + canvas.style[key] = style[key]; + }); + canvas.width = canvas.width; + delete canvas[EXPANDO_KEY]; + return true; + } + addEventListener(chart, type, listener) { + this.removeEventListener(chart, type); + const proxies = chart.$proxies || (chart.$proxies = {}); + const handlers = { + attach: createAttachObserver, + detach: createDetachObserver, + resize: createResizeObserver + }; + const handler = handlers[type] || createProxyAndListen; + proxies[type] = handler(chart, type, listener); + } + removeEventListener(chart, type) { + const proxies = chart.$proxies || (chart.$proxies = {}); + const proxy = proxies[type]; + if (!proxy) { + return; + } + const handlers = { + attach: releaseObserver, + detach: releaseObserver, + resize: releaseObserver + }; + const handler = handlers[type] || removeListener; + handler(chart, type, proxy); + proxies[type] = undefined; + } + getDevicePixelRatio() { + return window.devicePixelRatio; + } + getMaximumSize(canvas, width, height, aspectRatio) { + return getMaximumSize(canvas, width, height, aspectRatio); + } + isAttached(canvas) { + const container = _getParentNode(canvas); + return !!(container && container.isConnected); + } +} + +function _detectPlatform(canvas) { + if (!_isDomSupported() || (typeof OffscreenCanvas !== 'undefined' && canvas instanceof OffscreenCanvas)) { + return BasicPlatform; + } + return DomPlatform; +} + +class Element { + constructor() { + this.x = undefined; + this.y = undefined; + this.active = false; + this.options = undefined; + this.$animations = undefined; + } + tooltipPosition(useFinalPosition) { + const {x, y} = this.getProps(['x', 'y'], useFinalPosition); + return {x, y}; + } + hasValue() { + return isNumber(this.x) && isNumber(this.y); + } + getProps(props, final) { + const anims = this.$animations; + if (!final || !anims) { + return this; + } + const ret = {}; + props.forEach(prop => { + ret[prop] = anims[prop] && anims[prop].active() ? anims[prop]._to : this[prop]; + }); + return ret; + } +} +Element.defaults = {}; +Element.defaultRoutes = undefined; + +const formatters = { + values(value) { + return isArray(value) ? value : '' + value; + }, + numeric(tickValue, index, ticks) { + if (tickValue === 0) { + return '0'; + } + const locale = this.chart.options.locale; + let notation; + let delta = tickValue; + if (ticks.length > 1) { + const maxTick = Math.max(Math.abs(ticks[0].value), Math.abs(ticks[ticks.length - 1].value)); + if (maxTick < 1e-4 || maxTick > 1e+15) { + notation = 'scientific'; + } + delta = calculateDelta(tickValue, ticks); + } + const logDelta = log10(Math.abs(delta)); + const numDecimal = Math.max(Math.min(-1 * Math.floor(logDelta), 20), 0); + const options = {notation, minimumFractionDigits: numDecimal, maximumFractionDigits: numDecimal}; + Object.assign(options, this.options.ticks.format); + return formatNumber(tickValue, locale, options); + }, + logarithmic(tickValue, index, ticks) { + if (tickValue === 0) { + return '0'; + } + const remain = tickValue / (Math.pow(10, Math.floor(log10(tickValue)))); + if (remain === 1 || remain === 2 || remain === 5) { + return formatters.numeric.call(this, tickValue, index, ticks); + } + return ''; + } +}; +function calculateDelta(tickValue, ticks) { + let delta = ticks.length > 3 ? ticks[2].value - ticks[1].value : ticks[1].value - ticks[0].value; + if (Math.abs(delta) >= 1 && tickValue !== Math.floor(tickValue)) { + delta = tickValue - Math.floor(tickValue); + } + return delta; +} +var Ticks = {formatters}; + +defaults.set('scale', { + display: true, + offset: false, + reverse: false, + beginAtZero: false, + bounds: 'ticks', + grace: 0, + grid: { + display: true, + lineWidth: 1, + drawBorder: true, + drawOnChartArea: true, + drawTicks: true, + tickLength: 8, + tickWidth: (_ctx, options) => options.lineWidth, + tickColor: (_ctx, options) => options.color, + offset: false, + borderDash: [], + borderDashOffset: 0.0, + borderWidth: 1 + }, + title: { + display: false, + text: '', + padding: { + top: 4, + bottom: 4 + } + }, + ticks: { + minRotation: 0, + maxRotation: 50, + mirror: false, + textStrokeWidth: 0, + textStrokeColor: '', + padding: 3, + display: true, + autoSkip: true, + autoSkipPadding: 3, + labelOffset: 0, + callback: Ticks.formatters.values, + minor: {}, + major: {}, + align: 'center', + crossAlign: 'near', + showLabelBackdrop: false, + backdropColor: 'rgba(255, 255, 255, 0.75)', + backdropPadding: 2, + } +}); +defaults.route('scale.ticks', 'color', '', 'color'); +defaults.route('scale.grid', 'color', '', 'borderColor'); +defaults.route('scale.grid', 'borderColor', '', 'borderColor'); +defaults.route('scale.title', 'color', '', 'color'); +defaults.describe('scale', { + _fallback: false, + _scriptable: (name) => !name.startsWith('before') && !name.startsWith('after') && name !== 'callback' && name !== 'parser', + _indexable: (name) => name !== 'borderDash' && name !== 'tickBorderDash', +}); +defaults.describe('scales', { + _fallback: 'scale', +}); +defaults.describe('scale.ticks', { + _scriptable: (name) => name !== 'backdropPadding' && name !== 'callback', + _indexable: (name) => name !== 'backdropPadding', +}); + +function autoSkip(scale, ticks) { + const tickOpts = scale.options.ticks; + const ticksLimit = tickOpts.maxTicksLimit || determineMaxTicks(scale); + const majorIndices = tickOpts.major.enabled ? getMajorIndices(ticks) : []; + const numMajorIndices = majorIndices.length; + const first = majorIndices[0]; + const last = majorIndices[numMajorIndices - 1]; + const newTicks = []; + if (numMajorIndices > ticksLimit) { + skipMajors(ticks, newTicks, majorIndices, numMajorIndices / ticksLimit); + return newTicks; + } + const spacing = calculateSpacing(majorIndices, ticks, ticksLimit); + if (numMajorIndices > 0) { + let i, ilen; + const avgMajorSpacing = numMajorIndices > 1 ? Math.round((last - first) / (numMajorIndices - 1)) : null; + skip(ticks, newTicks, spacing, isNullOrUndef(avgMajorSpacing) ? 0 : first - avgMajorSpacing, first); + for (i = 0, ilen = numMajorIndices - 1; i < ilen; i++) { + skip(ticks, newTicks, spacing, majorIndices[i], majorIndices[i + 1]); + } + skip(ticks, newTicks, spacing, last, isNullOrUndef(avgMajorSpacing) ? ticks.length : last + avgMajorSpacing); + return newTicks; + } + skip(ticks, newTicks, spacing); + return newTicks; +} +function determineMaxTicks(scale) { + const offset = scale.options.offset; + const tickLength = scale._tickSize(); + const maxScale = scale._length / tickLength + (offset ? 0 : 1); + const maxChart = scale._maxLength / tickLength; + return Math.floor(Math.min(maxScale, maxChart)); +} +function calculateSpacing(majorIndices, ticks, ticksLimit) { + const evenMajorSpacing = getEvenSpacing(majorIndices); + const spacing = ticks.length / ticksLimit; + if (!evenMajorSpacing) { + return Math.max(spacing, 1); + } + const factors = _factorize(evenMajorSpacing); + for (let i = 0, ilen = factors.length - 1; i < ilen; i++) { + const factor = factors[i]; + if (factor > spacing) { + return factor; + } + } + return Math.max(spacing, 1); +} +function getMajorIndices(ticks) { + const result = []; + let i, ilen; + for (i = 0, ilen = ticks.length; i < ilen; i++) { + if (ticks[i].major) { + result.push(i); + } + } + return result; +} +function skipMajors(ticks, newTicks, majorIndices, spacing) { + let count = 0; + let next = majorIndices[0]; + let i; + spacing = Math.ceil(spacing); + for (i = 0; i < ticks.length; i++) { + if (i === next) { + newTicks.push(ticks[i]); + count++; + next = majorIndices[count * spacing]; + } + } +} +function skip(ticks, newTicks, spacing, majorStart, majorEnd) { + const start = valueOrDefault(majorStart, 0); + const end = Math.min(valueOrDefault(majorEnd, ticks.length), ticks.length); + let count = 0; + let length, i, next; + spacing = Math.ceil(spacing); + if (majorEnd) { + length = majorEnd - majorStart; + spacing = length / Math.floor(length / spacing); + } + next = start; + while (next < 0) { + count++; + next = Math.round(start + count * spacing); + } + for (i = Math.max(start, 0); i < end; i++) { + if (i === next) { + newTicks.push(ticks[i]); + count++; + next = Math.round(start + count * spacing); + } + } +} +function getEvenSpacing(arr) { + const len = arr.length; + let i, diff; + if (len < 2) { + return false; + } + for (diff = arr[0], i = 1; i < len; ++i) { + if (arr[i] - arr[i - 1] !== diff) { + return false; + } + } + return diff; +} + +const reverseAlign = (align) => align === 'left' ? 'right' : align === 'right' ? 'left' : align; +const offsetFromEdge = (scale, edge, offset) => edge === 'top' || edge === 'left' ? scale[edge] + offset : scale[edge] - offset; +function sample(arr, numItems) { + const result = []; + const increment = arr.length / numItems; + const len = arr.length; + let i = 0; + for (; i < len; i += increment) { + result.push(arr[Math.floor(i)]); + } + return result; +} +function getPixelForGridLine(scale, index, offsetGridLines) { + const length = scale.ticks.length; + const validIndex = Math.min(index, length - 1); + const start = scale._startPixel; + const end = scale._endPixel; + const epsilon = 1e-6; + let lineValue = scale.getPixelForTick(validIndex); + let offset; + if (offsetGridLines) { + if (length === 1) { + offset = Math.max(lineValue - start, end - lineValue); + } else if (index === 0) { + offset = (scale.getPixelForTick(1) - lineValue) / 2; + } else { + offset = (lineValue - scale.getPixelForTick(validIndex - 1)) / 2; + } + lineValue += validIndex < index ? offset : -offset; + if (lineValue < start - epsilon || lineValue > end + epsilon) { + return; + } + } + return lineValue; +} +function garbageCollect(caches, length) { + each(caches, (cache) => { + const gc = cache.gc; + const gcLen = gc.length / 2; + let i; + if (gcLen > length) { + for (i = 0; i < gcLen; ++i) { + delete cache.data[gc[i]]; + } + gc.splice(0, gcLen); + } + }); +} +function getTickMarkLength(options) { + return options.drawTicks ? options.tickLength : 0; +} +function getTitleHeight(options, fallback) { + if (!options.display) { + return 0; + } + const font = toFont(options.font, fallback); + const padding = toPadding(options.padding); + const lines = isArray(options.text) ? options.text.length : 1; + return (lines * font.lineHeight) + padding.height; +} +function createScaleContext(parent, scale) { + return createContext(parent, { + scale, + type: 'scale' + }); +} +function createTickContext(parent, index, tick) { + return createContext(parent, { + tick, + index, + type: 'tick' + }); +} +function titleAlign(align, position, reverse) { + let ret = _toLeftRightCenter(align); + if ((reverse && position !== 'right') || (!reverse && position === 'right')) { + ret = reverseAlign(ret); + } + return ret; +} +function titleArgs(scale, offset, position, align) { + const {top, left, bottom, right, chart} = scale; + const {chartArea, scales} = chart; + let rotation = 0; + let maxWidth, titleX, titleY; + const height = bottom - top; + const width = right - left; + if (scale.isHorizontal()) { + titleX = _alignStartEnd(align, left, right); + if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + titleY = scales[positionAxisID].getPixelForValue(value) + height - offset; + } else if (position === 'center') { + titleY = (chartArea.bottom + chartArea.top) / 2 + height - offset; + } else { + titleY = offsetFromEdge(scale, position, offset); + } + maxWidth = right - left; + } else { + if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + titleX = scales[positionAxisID].getPixelForValue(value) - width + offset; + } else if (position === 'center') { + titleX = (chartArea.left + chartArea.right) / 2 - width + offset; + } else { + titleX = offsetFromEdge(scale, position, offset); + } + titleY = _alignStartEnd(align, bottom, top); + rotation = position === 'left' ? -HALF_PI : HALF_PI; + } + return {titleX, titleY, maxWidth, rotation}; +} +class Scale extends Element { + constructor(cfg) { + super(); + this.id = cfg.id; + this.type = cfg.type; + this.options = undefined; + this.ctx = cfg.ctx; + this.chart = cfg.chart; + this.top = undefined; + this.bottom = undefined; + this.left = undefined; + this.right = undefined; + this.width = undefined; + this.height = undefined; + this._margins = { + left: 0, + right: 0, + top: 0, + bottom: 0 + }; + this.maxWidth = undefined; + this.maxHeight = undefined; + this.paddingTop = undefined; + this.paddingBottom = undefined; + this.paddingLeft = undefined; + this.paddingRight = undefined; + this.axis = undefined; + this.labelRotation = undefined; + this.min = undefined; + this.max = undefined; + this._range = undefined; + this.ticks = []; + this._gridLineItems = null; + this._labelItems = null; + this._labelSizes = null; + this._length = 0; + this._maxLength = 0; + this._longestTextCache = {}; + this._startPixel = undefined; + this._endPixel = undefined; + this._reversePixels = false; + this._userMax = undefined; + this._userMin = undefined; + this._suggestedMax = undefined; + this._suggestedMin = undefined; + this._ticksLength = 0; + this._borderValue = 0; + this._cache = {}; + this._dataLimitsCached = false; + this.$context = undefined; + } + init(options) { + this.options = options.setContext(this.getContext()); + this.axis = options.axis; + this._userMin = this.parse(options.min); + this._userMax = this.parse(options.max); + this._suggestedMin = this.parse(options.suggestedMin); + this._suggestedMax = this.parse(options.suggestedMax); + } + parse(raw, index) { + return raw; + } + getUserBounds() { + let {_userMin, _userMax, _suggestedMin, _suggestedMax} = this; + _userMin = finiteOrDefault(_userMin, Number.POSITIVE_INFINITY); + _userMax = finiteOrDefault(_userMax, Number.NEGATIVE_INFINITY); + _suggestedMin = finiteOrDefault(_suggestedMin, Number.POSITIVE_INFINITY); + _suggestedMax = finiteOrDefault(_suggestedMax, Number.NEGATIVE_INFINITY); + return { + min: finiteOrDefault(_userMin, _suggestedMin), + max: finiteOrDefault(_userMax, _suggestedMax), + minDefined: isNumberFinite(_userMin), + maxDefined: isNumberFinite(_userMax) + }; + } + getMinMax(canStack) { + let {min, max, minDefined, maxDefined} = this.getUserBounds(); + let range; + if (minDefined && maxDefined) { + return {min, max}; + } + const metas = this.getMatchingVisibleMetas(); + for (let i = 0, ilen = metas.length; i < ilen; ++i) { + range = metas[i].controller.getMinMax(this, canStack); + if (!minDefined) { + min = Math.min(min, range.min); + } + if (!maxDefined) { + max = Math.max(max, range.max); + } + } + min = maxDefined && min > max ? max : min; + max = minDefined && min > max ? min : max; + return { + min: finiteOrDefault(min, finiteOrDefault(max, min)), + max: finiteOrDefault(max, finiteOrDefault(min, max)) + }; + } + getPadding() { + return { + left: this.paddingLeft || 0, + top: this.paddingTop || 0, + right: this.paddingRight || 0, + bottom: this.paddingBottom || 0 + }; + } + getTicks() { + return this.ticks; + } + getLabels() { + const data = this.chart.data; + return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels || []; + } + beforeLayout() { + this._cache = {}; + this._dataLimitsCached = false; + } + beforeUpdate() { + callback(this.options.beforeUpdate, [this]); + } + update(maxWidth, maxHeight, margins) { + const {beginAtZero, grace, ticks: tickOpts} = this.options; + const sampleSize = tickOpts.sampleSize; + this.beforeUpdate(); + this.maxWidth = maxWidth; + this.maxHeight = maxHeight; + this._margins = margins = Object.assign({ + left: 0, + right: 0, + top: 0, + bottom: 0 + }, margins); + this.ticks = null; + this._labelSizes = null; + this._gridLineItems = null; + this._labelItems = null; + this.beforeSetDimensions(); + this.setDimensions(); + this.afterSetDimensions(); + this._maxLength = this.isHorizontal() + ? this.width + margins.left + margins.right + : this.height + margins.top + margins.bottom; + if (!this._dataLimitsCached) { + this.beforeDataLimits(); + this.determineDataLimits(); + this.afterDataLimits(); + this._range = _addGrace(this, grace, beginAtZero); + this._dataLimitsCached = true; + } + this.beforeBuildTicks(); + this.ticks = this.buildTicks() || []; + this.afterBuildTicks(); + const samplingEnabled = sampleSize < this.ticks.length; + this._convertTicksToLabels(samplingEnabled ? sample(this.ticks, sampleSize) : this.ticks); + this.configure(); + this.beforeCalculateLabelRotation(); + this.calculateLabelRotation(); + this.afterCalculateLabelRotation(); + if (tickOpts.display && (tickOpts.autoSkip || tickOpts.source === 'auto')) { + this.ticks = autoSkip(this, this.ticks); + this._labelSizes = null; + } + if (samplingEnabled) { + this._convertTicksToLabels(this.ticks); + } + this.beforeFit(); + this.fit(); + this.afterFit(); + this.afterUpdate(); + } + configure() { + let reversePixels = this.options.reverse; + let startPixel, endPixel; + if (this.isHorizontal()) { + startPixel = this.left; + endPixel = this.right; + } else { + startPixel = this.top; + endPixel = this.bottom; + reversePixels = !reversePixels; + } + this._startPixel = startPixel; + this._endPixel = endPixel; + this._reversePixels = reversePixels; + this._length = endPixel - startPixel; + this._alignToPixels = this.options.alignToPixels; + } + afterUpdate() { + callback(this.options.afterUpdate, [this]); + } + beforeSetDimensions() { + callback(this.options.beforeSetDimensions, [this]); + } + setDimensions() { + if (this.isHorizontal()) { + this.width = this.maxWidth; + this.left = 0; + this.right = this.width; + } else { + this.height = this.maxHeight; + this.top = 0; + this.bottom = this.height; + } + this.paddingLeft = 0; + this.paddingTop = 0; + this.paddingRight = 0; + this.paddingBottom = 0; + } + afterSetDimensions() { + callback(this.options.afterSetDimensions, [this]); + } + _callHooks(name) { + this.chart.notifyPlugins(name, this.getContext()); + callback(this.options[name], [this]); + } + beforeDataLimits() { + this._callHooks('beforeDataLimits'); + } + determineDataLimits() {} + afterDataLimits() { + this._callHooks('afterDataLimits'); + } + beforeBuildTicks() { + this._callHooks('beforeBuildTicks'); + } + buildTicks() { + return []; + } + afterBuildTicks() { + this._callHooks('afterBuildTicks'); + } + beforeTickToLabelConversion() { + callback(this.options.beforeTickToLabelConversion, [this]); + } + generateTickLabels(ticks) { + const tickOpts = this.options.ticks; + let i, ilen, tick; + for (i = 0, ilen = ticks.length; i < ilen; i++) { + tick = ticks[i]; + tick.label = callback(tickOpts.callback, [tick.value, i, ticks], this); + } + } + afterTickToLabelConversion() { + callback(this.options.afterTickToLabelConversion, [this]); + } + beforeCalculateLabelRotation() { + callback(this.options.beforeCalculateLabelRotation, [this]); + } + calculateLabelRotation() { + const options = this.options; + const tickOpts = options.ticks; + const numTicks = this.ticks.length; + const minRotation = tickOpts.minRotation || 0; + const maxRotation = tickOpts.maxRotation; + let labelRotation = minRotation; + let tickWidth, maxHeight, maxLabelDiagonal; + if (!this._isVisible() || !tickOpts.display || minRotation >= maxRotation || numTicks <= 1 || !this.isHorizontal()) { + this.labelRotation = minRotation; + return; + } + const labelSizes = this._getLabelSizes(); + const maxLabelWidth = labelSizes.widest.width; + const maxLabelHeight = labelSizes.highest.height; + const maxWidth = _limitValue(this.chart.width - maxLabelWidth, 0, this.maxWidth); + tickWidth = options.offset ? this.maxWidth / numTicks : maxWidth / (numTicks - 1); + if (maxLabelWidth + 6 > tickWidth) { + tickWidth = maxWidth / (numTicks - (options.offset ? 0.5 : 1)); + maxHeight = this.maxHeight - getTickMarkLength(options.grid) + - tickOpts.padding - getTitleHeight(options.title, this.chart.options.font); + maxLabelDiagonal = Math.sqrt(maxLabelWidth * maxLabelWidth + maxLabelHeight * maxLabelHeight); + labelRotation = toDegrees(Math.min( + Math.asin(_limitValue((labelSizes.highest.height + 6) / tickWidth, -1, 1)), + Math.asin(_limitValue(maxHeight / maxLabelDiagonal, -1, 1)) - Math.asin(_limitValue(maxLabelHeight / maxLabelDiagonal, -1, 1)) + )); + labelRotation = Math.max(minRotation, Math.min(maxRotation, labelRotation)); + } + this.labelRotation = labelRotation; + } + afterCalculateLabelRotation() { + callback(this.options.afterCalculateLabelRotation, [this]); + } + beforeFit() { + callback(this.options.beforeFit, [this]); + } + fit() { + const minSize = { + width: 0, + height: 0 + }; + const {chart, options: {ticks: tickOpts, title: titleOpts, grid: gridOpts}} = this; + const display = this._isVisible(); + const isHorizontal = this.isHorizontal(); + if (display) { + const titleHeight = getTitleHeight(titleOpts, chart.options.font); + if (isHorizontal) { + minSize.width = this.maxWidth; + minSize.height = getTickMarkLength(gridOpts) + titleHeight; + } else { + minSize.height = this.maxHeight; + minSize.width = getTickMarkLength(gridOpts) + titleHeight; + } + if (tickOpts.display && this.ticks.length) { + const {first, last, widest, highest} = this._getLabelSizes(); + const tickPadding = tickOpts.padding * 2; + const angleRadians = toRadians(this.labelRotation); + const cos = Math.cos(angleRadians); + const sin = Math.sin(angleRadians); + if (isHorizontal) { + const labelHeight = tickOpts.mirror ? 0 : sin * widest.width + cos * highest.height; + minSize.height = Math.min(this.maxHeight, minSize.height + labelHeight + tickPadding); + } else { + const labelWidth = tickOpts.mirror ? 0 : cos * widest.width + sin * highest.height; + minSize.width = Math.min(this.maxWidth, minSize.width + labelWidth + tickPadding); + } + this._calculatePadding(first, last, sin, cos); + } + } + this._handleMargins(); + if (isHorizontal) { + this.width = this._length = chart.width - this._margins.left - this._margins.right; + this.height = minSize.height; + } else { + this.width = minSize.width; + this.height = this._length = chart.height - this._margins.top - this._margins.bottom; + } + } + _calculatePadding(first, last, sin, cos) { + const {ticks: {align, padding}, position} = this.options; + const isRotated = this.labelRotation !== 0; + const labelsBelowTicks = position !== 'top' && this.axis === 'x'; + if (this.isHorizontal()) { + const offsetLeft = this.getPixelForTick(0) - this.left; + const offsetRight = this.right - this.getPixelForTick(this.ticks.length - 1); + let paddingLeft = 0; + let paddingRight = 0; + if (isRotated) { + if (labelsBelowTicks) { + paddingLeft = cos * first.width; + paddingRight = sin * last.height; + } else { + paddingLeft = sin * first.height; + paddingRight = cos * last.width; + } + } else if (align === 'start') { + paddingRight = last.width; + } else if (align === 'end') { + paddingLeft = first.width; + } else { + paddingLeft = first.width / 2; + paddingRight = last.width / 2; + } + this.paddingLeft = Math.max((paddingLeft - offsetLeft + padding) * this.width / (this.width - offsetLeft), 0); + this.paddingRight = Math.max((paddingRight - offsetRight + padding) * this.width / (this.width - offsetRight), 0); + } else { + let paddingTop = last.height / 2; + let paddingBottom = first.height / 2; + if (align === 'start') { + paddingTop = 0; + paddingBottom = first.height; + } else if (align === 'end') { + paddingTop = last.height; + paddingBottom = 0; + } + this.paddingTop = paddingTop + padding; + this.paddingBottom = paddingBottom + padding; + } + } + _handleMargins() { + if (this._margins) { + this._margins.left = Math.max(this.paddingLeft, this._margins.left); + this._margins.top = Math.max(this.paddingTop, this._margins.top); + this._margins.right = Math.max(this.paddingRight, this._margins.right); + this._margins.bottom = Math.max(this.paddingBottom, this._margins.bottom); + } + } + afterFit() { + callback(this.options.afterFit, [this]); + } + isHorizontal() { + const {axis, position} = this.options; + return position === 'top' || position === 'bottom' || axis === 'x'; + } + isFullSize() { + return this.options.fullSize; + } + _convertTicksToLabels(ticks) { + this.beforeTickToLabelConversion(); + this.generateTickLabels(ticks); + let i, ilen; + for (i = 0, ilen = ticks.length; i < ilen; i++) { + if (isNullOrUndef(ticks[i].label)) { + ticks.splice(i, 1); + ilen--; + i--; + } + } + this.afterTickToLabelConversion(); + } + _getLabelSizes() { + let labelSizes = this._labelSizes; + if (!labelSizes) { + const sampleSize = this.options.ticks.sampleSize; + let ticks = this.ticks; + if (sampleSize < ticks.length) { + ticks = sample(ticks, sampleSize); + } + this._labelSizes = labelSizes = this._computeLabelSizes(ticks, ticks.length); + } + return labelSizes; + } + _computeLabelSizes(ticks, length) { + const {ctx, _longestTextCache: caches} = this; + const widths = []; + const heights = []; + let widestLabelSize = 0; + let highestLabelSize = 0; + let i, j, jlen, label, tickFont, fontString, cache, lineHeight, width, height, nestedLabel; + for (i = 0; i < length; ++i) { + label = ticks[i].label; + tickFont = this._resolveTickFontOptions(i); + ctx.font = fontString = tickFont.string; + cache = caches[fontString] = caches[fontString] || {data: {}, gc: []}; + lineHeight = tickFont.lineHeight; + width = height = 0; + if (!isNullOrUndef(label) && !isArray(label)) { + width = _measureText(ctx, cache.data, cache.gc, width, label); + height = lineHeight; + } else if (isArray(label)) { + for (j = 0, jlen = label.length; j < jlen; ++j) { + nestedLabel = label[j]; + if (!isNullOrUndef(nestedLabel) && !isArray(nestedLabel)) { + width = _measureText(ctx, cache.data, cache.gc, width, nestedLabel); + height += lineHeight; + } + } + } + widths.push(width); + heights.push(height); + widestLabelSize = Math.max(width, widestLabelSize); + highestLabelSize = Math.max(height, highestLabelSize); + } + garbageCollect(caches, length); + const widest = widths.indexOf(widestLabelSize); + const highest = heights.indexOf(highestLabelSize); + const valueAt = (idx) => ({width: widths[idx] || 0, height: heights[idx] || 0}); + return { + first: valueAt(0), + last: valueAt(length - 1), + widest: valueAt(widest), + highest: valueAt(highest), + widths, + heights, + }; + } + getLabelForValue(value) { + return value; + } + getPixelForValue(value, index) { + return NaN; + } + getValueForPixel(pixel) {} + getPixelForTick(index) { + const ticks = this.ticks; + if (index < 0 || index > ticks.length - 1) { + return null; + } + return this.getPixelForValue(ticks[index].value); + } + getPixelForDecimal(decimal) { + if (this._reversePixels) { + decimal = 1 - decimal; + } + const pixel = this._startPixel + decimal * this._length; + return _int16Range(this._alignToPixels ? _alignPixel(this.chart, pixel, 0) : pixel); + } + getDecimalForPixel(pixel) { + const decimal = (pixel - this._startPixel) / this._length; + return this._reversePixels ? 1 - decimal : decimal; + } + getBasePixel() { + return this.getPixelForValue(this.getBaseValue()); + } + getBaseValue() { + const {min, max} = this; + return min < 0 && max < 0 ? max : + min > 0 && max > 0 ? min : + 0; + } + getContext(index) { + const ticks = this.ticks || []; + if (index >= 0 && index < ticks.length) { + const tick = ticks[index]; + return tick.$context || + (tick.$context = createTickContext(this.getContext(), index, tick)); + } + return this.$context || + (this.$context = createScaleContext(this.chart.getContext(), this)); + } + _tickSize() { + const optionTicks = this.options.ticks; + const rot = toRadians(this.labelRotation); + const cos = Math.abs(Math.cos(rot)); + const sin = Math.abs(Math.sin(rot)); + const labelSizes = this._getLabelSizes(); + const padding = optionTicks.autoSkipPadding || 0; + const w = labelSizes ? labelSizes.widest.width + padding : 0; + const h = labelSizes ? labelSizes.highest.height + padding : 0; + return this.isHorizontal() + ? h * cos > w * sin ? w / cos : h / sin + : h * sin < w * cos ? h / cos : w / sin; + } + _isVisible() { + const display = this.options.display; + if (display !== 'auto') { + return !!display; + } + return this.getMatchingVisibleMetas().length > 0; + } + _computeGridLineItems(chartArea) { + const axis = this.axis; + const chart = this.chart; + const options = this.options; + const {grid, position} = options; + const offset = grid.offset; + const isHorizontal = this.isHorizontal(); + const ticks = this.ticks; + const ticksLength = ticks.length + (offset ? 1 : 0); + const tl = getTickMarkLength(grid); + const items = []; + const borderOpts = grid.setContext(this.getContext()); + const axisWidth = borderOpts.drawBorder ? borderOpts.borderWidth : 0; + const axisHalfWidth = axisWidth / 2; + const alignBorderValue = function(pixel) { + return _alignPixel(chart, pixel, axisWidth); + }; + let borderValue, i, lineValue, alignedLineValue; + let tx1, ty1, tx2, ty2, x1, y1, x2, y2; + if (position === 'top') { + borderValue = alignBorderValue(this.bottom); + ty1 = this.bottom - tl; + ty2 = borderValue - axisHalfWidth; + y1 = alignBorderValue(chartArea.top) + axisHalfWidth; + y2 = chartArea.bottom; + } else if (position === 'bottom') { + borderValue = alignBorderValue(this.top); + y1 = chartArea.top; + y2 = alignBorderValue(chartArea.bottom) - axisHalfWidth; + ty1 = borderValue + axisHalfWidth; + ty2 = this.top + tl; + } else if (position === 'left') { + borderValue = alignBorderValue(this.right); + tx1 = this.right - tl; + tx2 = borderValue - axisHalfWidth; + x1 = alignBorderValue(chartArea.left) + axisHalfWidth; + x2 = chartArea.right; + } else if (position === 'right') { + borderValue = alignBorderValue(this.left); + x1 = chartArea.left; + x2 = alignBorderValue(chartArea.right) - axisHalfWidth; + tx1 = borderValue + axisHalfWidth; + tx2 = this.left + tl; + } else if (axis === 'x') { + if (position === 'center') { + borderValue = alignBorderValue((chartArea.top + chartArea.bottom) / 2 + 0.5); + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value)); + } + y1 = chartArea.top; + y2 = chartArea.bottom; + ty1 = borderValue + axisHalfWidth; + ty2 = ty1 + tl; + } else if (axis === 'y') { + if (position === 'center') { + borderValue = alignBorderValue((chartArea.left + chartArea.right) / 2); + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value)); + } + tx1 = borderValue - axisHalfWidth; + tx2 = tx1 - tl; + x1 = chartArea.left; + x2 = chartArea.right; + } + const limit = valueOrDefault(options.ticks.maxTicksLimit, ticksLength); + const step = Math.max(1, Math.ceil(ticksLength / limit)); + for (i = 0; i < ticksLength; i += step) { + const optsAtIndex = grid.setContext(this.getContext(i)); + const lineWidth = optsAtIndex.lineWidth; + const lineColor = optsAtIndex.color; + const borderDash = grid.borderDash || []; + const borderDashOffset = optsAtIndex.borderDashOffset; + const tickWidth = optsAtIndex.tickWidth; + const tickColor = optsAtIndex.tickColor; + const tickBorderDash = optsAtIndex.tickBorderDash || []; + const tickBorderDashOffset = optsAtIndex.tickBorderDashOffset; + lineValue = getPixelForGridLine(this, i, offset); + if (lineValue === undefined) { + continue; + } + alignedLineValue = _alignPixel(chart, lineValue, lineWidth); + if (isHorizontal) { + tx1 = tx2 = x1 = x2 = alignedLineValue; + } else { + ty1 = ty2 = y1 = y2 = alignedLineValue; + } + items.push({ + tx1, + ty1, + tx2, + ty2, + x1, + y1, + x2, + y2, + width: lineWidth, + color: lineColor, + borderDash, + borderDashOffset, + tickWidth, + tickColor, + tickBorderDash, + tickBorderDashOffset, + }); + } + this._ticksLength = ticksLength; + this._borderValue = borderValue; + return items; + } + _computeLabelItems(chartArea) { + const axis = this.axis; + const options = this.options; + const {position, ticks: optionTicks} = options; + const isHorizontal = this.isHorizontal(); + const ticks = this.ticks; + const {align, crossAlign, padding, mirror} = optionTicks; + const tl = getTickMarkLength(options.grid); + const tickAndPadding = tl + padding; + const hTickAndPadding = mirror ? -padding : tickAndPadding; + const rotation = -toRadians(this.labelRotation); + const items = []; + let i, ilen, tick, label, x, y, textAlign, pixel, font, lineHeight, lineCount, textOffset; + let textBaseline = 'middle'; + if (position === 'top') { + y = this.bottom - hTickAndPadding; + textAlign = this._getXAxisLabelAlignment(); + } else if (position === 'bottom') { + y = this.top + hTickAndPadding; + textAlign = this._getXAxisLabelAlignment(); + } else if (position === 'left') { + const ret = this._getYAxisLabelAlignment(tl); + textAlign = ret.textAlign; + x = ret.x; + } else if (position === 'right') { + const ret = this._getYAxisLabelAlignment(tl); + textAlign = ret.textAlign; + x = ret.x; + } else if (axis === 'x') { + if (position === 'center') { + y = ((chartArea.top + chartArea.bottom) / 2) + tickAndPadding; + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + y = this.chart.scales[positionAxisID].getPixelForValue(value) + tickAndPadding; + } + textAlign = this._getXAxisLabelAlignment(); + } else if (axis === 'y') { + if (position === 'center') { + x = ((chartArea.left + chartArea.right) / 2) - tickAndPadding; + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + x = this.chart.scales[positionAxisID].getPixelForValue(value); + } + textAlign = this._getYAxisLabelAlignment(tl).textAlign; + } + if (axis === 'y') { + if (align === 'start') { + textBaseline = 'top'; + } else if (align === 'end') { + textBaseline = 'bottom'; + } + } + const labelSizes = this._getLabelSizes(); + for (i = 0, ilen = ticks.length; i < ilen; ++i) { + tick = ticks[i]; + label = tick.label; + const optsAtIndex = optionTicks.setContext(this.getContext(i)); + pixel = this.getPixelForTick(i) + optionTicks.labelOffset; + font = this._resolveTickFontOptions(i); + lineHeight = font.lineHeight; + lineCount = isArray(label) ? label.length : 1; + const halfCount = lineCount / 2; + const color = optsAtIndex.color; + const strokeColor = optsAtIndex.textStrokeColor; + const strokeWidth = optsAtIndex.textStrokeWidth; + if (isHorizontal) { + x = pixel; + if (position === 'top') { + if (crossAlign === 'near' || rotation !== 0) { + textOffset = -lineCount * lineHeight + lineHeight / 2; + } else if (crossAlign === 'center') { + textOffset = -labelSizes.highest.height / 2 - halfCount * lineHeight + lineHeight; + } else { + textOffset = -labelSizes.highest.height + lineHeight / 2; + } + } else { + if (crossAlign === 'near' || rotation !== 0) { + textOffset = lineHeight / 2; + } else if (crossAlign === 'center') { + textOffset = labelSizes.highest.height / 2 - halfCount * lineHeight; + } else { + textOffset = labelSizes.highest.height - lineCount * lineHeight; + } + } + if (mirror) { + textOffset *= -1; + } + } else { + y = pixel; + textOffset = (1 - lineCount) * lineHeight / 2; + } + let backdrop; + if (optsAtIndex.showLabelBackdrop) { + const labelPadding = toPadding(optsAtIndex.backdropPadding); + const height = labelSizes.heights[i]; + const width = labelSizes.widths[i]; + let top = y + textOffset - labelPadding.top; + let left = x - labelPadding.left; + switch (textBaseline) { + case 'middle': + top -= height / 2; + break; + case 'bottom': + top -= height; + break; + } + switch (textAlign) { + case 'center': + left -= width / 2; + break; + case 'right': + left -= width; + break; + } + backdrop = { + left, + top, + width: width + labelPadding.width, + height: height + labelPadding.height, + color: optsAtIndex.backdropColor, + }; + } + items.push({ + rotation, + label, + font, + color, + strokeColor, + strokeWidth, + textOffset, + textAlign, + textBaseline, + translation: [x, y], + backdrop, + }); + } + return items; + } + _getXAxisLabelAlignment() { + const {position, ticks} = this.options; + const rotation = -toRadians(this.labelRotation); + if (rotation) { + return position === 'top' ? 'left' : 'right'; + } + let align = 'center'; + if (ticks.align === 'start') { + align = 'left'; + } else if (ticks.align === 'end') { + align = 'right'; + } + return align; + } + _getYAxisLabelAlignment(tl) { + const {position, ticks: {crossAlign, mirror, padding}} = this.options; + const labelSizes = this._getLabelSizes(); + const tickAndPadding = tl + padding; + const widest = labelSizes.widest.width; + let textAlign; + let x; + if (position === 'left') { + if (mirror) { + x = this.right + padding; + if (crossAlign === 'near') { + textAlign = 'left'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x += (widest / 2); + } else { + textAlign = 'right'; + x += widest; + } + } else { + x = this.right - tickAndPadding; + if (crossAlign === 'near') { + textAlign = 'right'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x -= (widest / 2); + } else { + textAlign = 'left'; + x = this.left; + } + } + } else if (position === 'right') { + if (mirror) { + x = this.left + padding; + if (crossAlign === 'near') { + textAlign = 'right'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x -= (widest / 2); + } else { + textAlign = 'left'; + x -= widest; + } + } else { + x = this.left + tickAndPadding; + if (crossAlign === 'near') { + textAlign = 'left'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x += widest / 2; + } else { + textAlign = 'right'; + x = this.right; + } + } + } else { + textAlign = 'right'; + } + return {textAlign, x}; + } + _computeLabelArea() { + if (this.options.ticks.mirror) { + return; + } + const chart = this.chart; + const position = this.options.position; + if (position === 'left' || position === 'right') { + return {top: 0, left: this.left, bottom: chart.height, right: this.right}; + } if (position === 'top' || position === 'bottom') { + return {top: this.top, left: 0, bottom: this.bottom, right: chart.width}; + } + } + drawBackground() { + const {ctx, options: {backgroundColor}, left, top, width, height} = this; + if (backgroundColor) { + ctx.save(); + ctx.fillStyle = backgroundColor; + ctx.fillRect(left, top, width, height); + ctx.restore(); + } + } + getLineWidthForValue(value) { + const grid = this.options.grid; + if (!this._isVisible() || !grid.display) { + return 0; + } + const ticks = this.ticks; + const index = ticks.findIndex(t => t.value === value); + if (index >= 0) { + const opts = grid.setContext(this.getContext(index)); + return opts.lineWidth; + } + return 0; + } + drawGrid(chartArea) { + const grid = this.options.grid; + const ctx = this.ctx; + const items = this._gridLineItems || (this._gridLineItems = this._computeGridLineItems(chartArea)); + let i, ilen; + const drawLine = (p1, p2, style) => { + if (!style.width || !style.color) { + return; + } + ctx.save(); + ctx.lineWidth = style.width; + ctx.strokeStyle = style.color; + ctx.setLineDash(style.borderDash || []); + ctx.lineDashOffset = style.borderDashOffset; + ctx.beginPath(); + ctx.moveTo(p1.x, p1.y); + ctx.lineTo(p2.x, p2.y); + ctx.stroke(); + ctx.restore(); + }; + if (grid.display) { + for (i = 0, ilen = items.length; i < ilen; ++i) { + const item = items[i]; + if (grid.drawOnChartArea) { + drawLine( + {x: item.x1, y: item.y1}, + {x: item.x2, y: item.y2}, + item + ); + } + if (grid.drawTicks) { + drawLine( + {x: item.tx1, y: item.ty1}, + {x: item.tx2, y: item.ty2}, + { + color: item.tickColor, + width: item.tickWidth, + borderDash: item.tickBorderDash, + borderDashOffset: item.tickBorderDashOffset + } + ); + } + } + } + } + drawBorder() { + const {chart, ctx, options: {grid}} = this; + const borderOpts = grid.setContext(this.getContext()); + const axisWidth = grid.drawBorder ? borderOpts.borderWidth : 0; + if (!axisWidth) { + return; + } + const lastLineWidth = grid.setContext(this.getContext(0)).lineWidth; + const borderValue = this._borderValue; + let x1, x2, y1, y2; + if (this.isHorizontal()) { + x1 = _alignPixel(chart, this.left, axisWidth) - axisWidth / 2; + x2 = _alignPixel(chart, this.right, lastLineWidth) + lastLineWidth / 2; + y1 = y2 = borderValue; + } else { + y1 = _alignPixel(chart, this.top, axisWidth) - axisWidth / 2; + y2 = _alignPixel(chart, this.bottom, lastLineWidth) + lastLineWidth / 2; + x1 = x2 = borderValue; + } + ctx.save(); + ctx.lineWidth = borderOpts.borderWidth; + ctx.strokeStyle = borderOpts.borderColor; + ctx.beginPath(); + ctx.moveTo(x1, y1); + ctx.lineTo(x2, y2); + ctx.stroke(); + ctx.restore(); + } + drawLabels(chartArea) { + const optionTicks = this.options.ticks; + if (!optionTicks.display) { + return; + } + const ctx = this.ctx; + const area = this._computeLabelArea(); + if (area) { + clipArea(ctx, area); + } + const items = this._labelItems || (this._labelItems = this._computeLabelItems(chartArea)); + let i, ilen; + for (i = 0, ilen = items.length; i < ilen; ++i) { + const item = items[i]; + const tickFont = item.font; + const label = item.label; + if (item.backdrop) { + ctx.fillStyle = item.backdrop.color; + ctx.fillRect(item.backdrop.left, item.backdrop.top, item.backdrop.width, item.backdrop.height); + } + let y = item.textOffset; + renderText(ctx, label, 0, y, tickFont, item); + } + if (area) { + unclipArea(ctx); + } + } + drawTitle() { + const {ctx, options: {position, title, reverse}} = this; + if (!title.display) { + return; + } + const font = toFont(title.font); + const padding = toPadding(title.padding); + const align = title.align; + let offset = font.lineHeight / 2; + if (position === 'bottom' || position === 'center' || isObject(position)) { + offset += padding.bottom; + if (isArray(title.text)) { + offset += font.lineHeight * (title.text.length - 1); + } + } else { + offset += padding.top; + } + const {titleX, titleY, maxWidth, rotation} = titleArgs(this, offset, position, align); + renderText(ctx, title.text, 0, 0, font, { + color: title.color, + maxWidth, + rotation, + textAlign: titleAlign(align, position, reverse), + textBaseline: 'middle', + translation: [titleX, titleY], + }); + } + draw(chartArea) { + if (!this._isVisible()) { + return; + } + this.drawBackground(); + this.drawGrid(chartArea); + this.drawBorder(); + this.drawTitle(); + this.drawLabels(chartArea); + } + _layers() { + const opts = this.options; + const tz = opts.ticks && opts.ticks.z || 0; + const gz = valueOrDefault(opts.grid && opts.grid.z, -1); + if (!this._isVisible() || this.draw !== Scale.prototype.draw) { + return [{ + z: tz, + draw: (chartArea) => { + this.draw(chartArea); + } + }]; + } + return [{ + z: gz, + draw: (chartArea) => { + this.drawBackground(); + this.drawGrid(chartArea); + this.drawTitle(); + } + }, { + z: gz + 1, + draw: () => { + this.drawBorder(); + } + }, { + z: tz, + draw: (chartArea) => { + this.drawLabels(chartArea); + } + }]; + } + getMatchingVisibleMetas(type) { + const metas = this.chart.getSortedVisibleDatasetMetas(); + const axisID = this.axis + 'AxisID'; + const result = []; + let i, ilen; + for (i = 0, ilen = metas.length; i < ilen; ++i) { + const meta = metas[i]; + if (meta[axisID] === this.id && (!type || meta.type === type)) { + result.push(meta); + } + } + return result; + } + _resolveTickFontOptions(index) { + const opts = this.options.ticks.setContext(this.getContext(index)); + return toFont(opts.font); + } + _maxDigits() { + const fontSize = this._resolveTickFontOptions(0).lineHeight; + return (this.isHorizontal() ? this.width : this.height) / fontSize; + } +} + +class TypedRegistry { + constructor(type, scope, override) { + this.type = type; + this.scope = scope; + this.override = override; + this.items = Object.create(null); + } + isForType(type) { + return Object.prototype.isPrototypeOf.call(this.type.prototype, type.prototype); + } + register(item) { + const proto = Object.getPrototypeOf(item); + let parentScope; + if (isIChartComponent(proto)) { + parentScope = this.register(proto); + } + const items = this.items; + const id = item.id; + const scope = this.scope + '.' + id; + if (!id) { + throw new Error('class does not have id: ' + item); + } + if (id in items) { + return scope; + } + items[id] = item; + registerDefaults(item, scope, parentScope); + if (this.override) { + defaults.override(item.id, item.overrides); + } + return scope; + } + get(id) { + return this.items[id]; + } + unregister(item) { + const items = this.items; + const id = item.id; + const scope = this.scope; + if (id in items) { + delete items[id]; + } + if (scope && id in defaults[scope]) { + delete defaults[scope][id]; + if (this.override) { + delete overrides[id]; + } + } + } +} +function registerDefaults(item, scope, parentScope) { + const itemDefaults = merge(Object.create(null), [ + parentScope ? defaults.get(parentScope) : {}, + defaults.get(scope), + item.defaults + ]); + defaults.set(scope, itemDefaults); + if (item.defaultRoutes) { + routeDefaults(scope, item.defaultRoutes); + } + if (item.descriptors) { + defaults.describe(scope, item.descriptors); + } +} +function routeDefaults(scope, routes) { + Object.keys(routes).forEach(property => { + const propertyParts = property.split('.'); + const sourceName = propertyParts.pop(); + const sourceScope = [scope].concat(propertyParts).join('.'); + const parts = routes[property].split('.'); + const targetName = parts.pop(); + const targetScope = parts.join('.'); + defaults.route(sourceScope, sourceName, targetScope, targetName); + }); +} +function isIChartComponent(proto) { + return 'id' in proto && 'defaults' in proto; +} + +class Registry { + constructor() { + this.controllers = new TypedRegistry(DatasetController, 'datasets', true); + this.elements = new TypedRegistry(Element, 'elements'); + this.plugins = new TypedRegistry(Object, 'plugins'); + this.scales = new TypedRegistry(Scale, 'scales'); + this._typedRegistries = [this.controllers, this.scales, this.elements]; + } + add(...args) { + this._each('register', args); + } + remove(...args) { + this._each('unregister', args); + } + addControllers(...args) { + this._each('register', args, this.controllers); + } + addElements(...args) { + this._each('register', args, this.elements); + } + addPlugins(...args) { + this._each('register', args, this.plugins); + } + addScales(...args) { + this._each('register', args, this.scales); + } + getController(id) { + return this._get(id, this.controllers, 'controller'); + } + getElement(id) { + return this._get(id, this.elements, 'element'); + } + getPlugin(id) { + return this._get(id, this.plugins, 'plugin'); + } + getScale(id) { + return this._get(id, this.scales, 'scale'); + } + removeControllers(...args) { + this._each('unregister', args, this.controllers); + } + removeElements(...args) { + this._each('unregister', args, this.elements); + } + removePlugins(...args) { + this._each('unregister', args, this.plugins); + } + removeScales(...args) { + this._each('unregister', args, this.scales); + } + _each(method, args, typedRegistry) { + [...args].forEach(arg => { + const reg = typedRegistry || this._getRegistryForType(arg); + if (typedRegistry || reg.isForType(arg) || (reg === this.plugins && arg.id)) { + this._exec(method, reg, arg); + } else { + each(arg, item => { + const itemReg = typedRegistry || this._getRegistryForType(item); + this._exec(method, itemReg, item); + }); + } + }); + } + _exec(method, registry, component) { + const camelMethod = _capitalize(method); + callback(component['before' + camelMethod], [], component); + registry[method](component); + callback(component['after' + camelMethod], [], component); + } + _getRegistryForType(type) { + for (let i = 0; i < this._typedRegistries.length; i++) { + const reg = this._typedRegistries[i]; + if (reg.isForType(type)) { + return reg; + } + } + return this.plugins; + } + _get(id, typedRegistry, type) { + const item = typedRegistry.get(id); + if (item === undefined) { + throw new Error('"' + id + '" is not a registered ' + type + '.'); + } + return item; + } +} +var registry = new Registry(); + +class PluginService { + constructor() { + this._init = []; + } + notify(chart, hook, args, filter) { + if (hook === 'beforeInit') { + this._init = this._createDescriptors(chart, true); + this._notify(this._init, chart, 'install'); + } + const descriptors = filter ? this._descriptors(chart).filter(filter) : this._descriptors(chart); + const result = this._notify(descriptors, chart, hook, args); + if (hook === 'afterDestroy') { + this._notify(descriptors, chart, 'stop'); + this._notify(this._init, chart, 'uninstall'); + } + return result; + } + _notify(descriptors, chart, hook, args) { + args = args || {}; + for (const descriptor of descriptors) { + const plugin = descriptor.plugin; + const method = plugin[hook]; + const params = [chart, args, descriptor.options]; + if (callback(method, params, plugin) === false && args.cancelable) { + return false; + } + } + return true; + } + invalidate() { + if (!isNullOrUndef(this._cache)) { + this._oldCache = this._cache; + this._cache = undefined; + } + } + _descriptors(chart) { + if (this._cache) { + return this._cache; + } + const descriptors = this._cache = this._createDescriptors(chart); + this._notifyStateChanges(chart); + return descriptors; + } + _createDescriptors(chart, all) { + const config = chart && chart.config; + const options = valueOrDefault(config.options && config.options.plugins, {}); + const plugins = allPlugins(config); + return options === false && !all ? [] : createDescriptors(chart, plugins, options, all); + } + _notifyStateChanges(chart) { + const previousDescriptors = this._oldCache || []; + const descriptors = this._cache; + const diff = (a, b) => a.filter(x => !b.some(y => x.plugin.id === y.plugin.id)); + this._notify(diff(previousDescriptors, descriptors), chart, 'stop'); + this._notify(diff(descriptors, previousDescriptors), chart, 'start'); + } +} +function allPlugins(config) { + const plugins = []; + const keys = Object.keys(registry.plugins.items); + for (let i = 0; i < keys.length; i++) { + plugins.push(registry.getPlugin(keys[i])); + } + const local = config.plugins || []; + for (let i = 0; i < local.length; i++) { + const plugin = local[i]; + if (plugins.indexOf(plugin) === -1) { + plugins.push(plugin); + } + } + return plugins; +} +function getOpts(options, all) { + if (!all && options === false) { + return null; + } + if (options === true) { + return {}; + } + return options; +} +function createDescriptors(chart, plugins, options, all) { + const result = []; + const context = chart.getContext(); + for (let i = 0; i < plugins.length; i++) { + const plugin = plugins[i]; + const id = plugin.id; + const opts = getOpts(options[id], all); + if (opts === null) { + continue; + } + result.push({ + plugin, + options: pluginOpts(chart.config, plugin, opts, context) + }); + } + return result; +} +function pluginOpts(config, plugin, opts, context) { + const keys = config.pluginScopeKeys(plugin); + const scopes = config.getOptionScopes(opts, keys); + return config.createResolver(scopes, context, [''], {scriptable: false, indexable: false, allKeys: true}); +} + +function getIndexAxis(type, options) { + const datasetDefaults = defaults.datasets[type] || {}; + const datasetOptions = (options.datasets || {})[type] || {}; + return datasetOptions.indexAxis || options.indexAxis || datasetDefaults.indexAxis || 'x'; +} +function getAxisFromDefaultScaleID(id, indexAxis) { + let axis = id; + if (id === '_index_') { + axis = indexAxis; + } else if (id === '_value_') { + axis = indexAxis === 'x' ? 'y' : 'x'; + } + return axis; +} +function getDefaultScaleIDFromAxis(axis, indexAxis) { + return axis === indexAxis ? '_index_' : '_value_'; +} +function axisFromPosition(position) { + if (position === 'top' || position === 'bottom') { + return 'x'; + } + if (position === 'left' || position === 'right') { + return 'y'; + } +} +function determineAxis(id, scaleOptions) { + if (id === 'x' || id === 'y') { + return id; + } + return scaleOptions.axis || axisFromPosition(scaleOptions.position) || id.charAt(0).toLowerCase(); +} +function mergeScaleConfig(config, options) { + const chartDefaults = overrides[config.type] || {scales: {}}; + const configScales = options.scales || {}; + const chartIndexAxis = getIndexAxis(config.type, options); + const firstIDs = Object.create(null); + const scales = Object.create(null); + Object.keys(configScales).forEach(id => { + const scaleConf = configScales[id]; + if (!isObject(scaleConf)) { + return console.error(`Invalid scale configuration for scale: ${id}`); + } + if (scaleConf._proxy) { + return console.warn(`Ignoring resolver passed as options for scale: ${id}`); + } + const axis = determineAxis(id, scaleConf); + const defaultId = getDefaultScaleIDFromAxis(axis, chartIndexAxis); + const defaultScaleOptions = chartDefaults.scales || {}; + firstIDs[axis] = firstIDs[axis] || id; + scales[id] = mergeIf(Object.create(null), [{axis}, scaleConf, defaultScaleOptions[axis], defaultScaleOptions[defaultId]]); + }); + config.data.datasets.forEach(dataset => { + const type = dataset.type || config.type; + const indexAxis = dataset.indexAxis || getIndexAxis(type, options); + const datasetDefaults = overrides[type] || {}; + const defaultScaleOptions = datasetDefaults.scales || {}; + Object.keys(defaultScaleOptions).forEach(defaultID => { + const axis = getAxisFromDefaultScaleID(defaultID, indexAxis); + const id = dataset[axis + 'AxisID'] || firstIDs[axis] || axis; + scales[id] = scales[id] || Object.create(null); + mergeIf(scales[id], [{axis}, configScales[id], defaultScaleOptions[defaultID]]); + }); + }); + Object.keys(scales).forEach(key => { + const scale = scales[key]; + mergeIf(scale, [defaults.scales[scale.type], defaults.scale]); + }); + return scales; +} +function initOptions(config) { + const options = config.options || (config.options = {}); + options.plugins = valueOrDefault(options.plugins, {}); + options.scales = mergeScaleConfig(config, options); +} +function initData(data) { + data = data || {}; + data.datasets = data.datasets || []; + data.labels = data.labels || []; + return data; +} +function initConfig(config) { + config = config || {}; + config.data = initData(config.data); + initOptions(config); + return config; +} +const keyCache = new Map(); +const keysCached = new Set(); +function cachedKeys(cacheKey, generate) { + let keys = keyCache.get(cacheKey); + if (!keys) { + keys = generate(); + keyCache.set(cacheKey, keys); + keysCached.add(keys); + } + return keys; +} +const addIfFound = (set, obj, key) => { + const opts = resolveObjectKey(obj, key); + if (opts !== undefined) { + set.add(opts); + } +}; +class Config { + constructor(config) { + this._config = initConfig(config); + this._scopeCache = new Map(); + this._resolverCache = new Map(); + } + get platform() { + return this._config.platform; + } + get type() { + return this._config.type; + } + set type(type) { + this._config.type = type; + } + get data() { + return this._config.data; + } + set data(data) { + this._config.data = initData(data); + } + get options() { + return this._config.options; + } + set options(options) { + this._config.options = options; + } + get plugins() { + return this._config.plugins; + } + update() { + const config = this._config; + this.clearCache(); + initOptions(config); + } + clearCache() { + this._scopeCache.clear(); + this._resolverCache.clear(); + } + datasetScopeKeys(datasetType) { + return cachedKeys(datasetType, + () => [[ + `datasets.${datasetType}`, + '' + ]]); + } + datasetAnimationScopeKeys(datasetType, transition) { + return cachedKeys(`${datasetType}.transition.${transition}`, + () => [ + [ + `datasets.${datasetType}.transitions.${transition}`, + `transitions.${transition}`, + ], + [ + `datasets.${datasetType}`, + '' + ] + ]); + } + datasetElementScopeKeys(datasetType, elementType) { + return cachedKeys(`${datasetType}-${elementType}`, + () => [[ + `datasets.${datasetType}.elements.${elementType}`, + `datasets.${datasetType}`, + `elements.${elementType}`, + '' + ]]); + } + pluginScopeKeys(plugin) { + const id = plugin.id; + const type = this.type; + return cachedKeys(`${type}-plugin-${id}`, + () => [[ + `plugins.${id}`, + ...plugin.additionalOptionScopes || [], + ]]); + } + _cachedScopes(mainScope, resetCache) { + const _scopeCache = this._scopeCache; + let cache = _scopeCache.get(mainScope); + if (!cache || resetCache) { + cache = new Map(); + _scopeCache.set(mainScope, cache); + } + return cache; + } + getOptionScopes(mainScope, keyLists, resetCache) { + const {options, type} = this; + const cache = this._cachedScopes(mainScope, resetCache); + const cached = cache.get(keyLists); + if (cached) { + return cached; + } + const scopes = new Set(); + keyLists.forEach(keys => { + if (mainScope) { + scopes.add(mainScope); + keys.forEach(key => addIfFound(scopes, mainScope, key)); + } + keys.forEach(key => addIfFound(scopes, options, key)); + keys.forEach(key => addIfFound(scopes, overrides[type] || {}, key)); + keys.forEach(key => addIfFound(scopes, defaults, key)); + keys.forEach(key => addIfFound(scopes, descriptors, key)); + }); + const array = Array.from(scopes); + if (array.length === 0) { + array.push(Object.create(null)); + } + if (keysCached.has(keyLists)) { + cache.set(keyLists, array); + } + return array; + } + chartOptionScopes() { + const {options, type} = this; + return [ + options, + overrides[type] || {}, + defaults.datasets[type] || {}, + {type}, + defaults, + descriptors + ]; + } + resolveNamedOptions(scopes, names, context, prefixes = ['']) { + const result = {$shared: true}; + const {resolver, subPrefixes} = getResolver(this._resolverCache, scopes, prefixes); + let options = resolver; + if (needContext(resolver, names)) { + result.$shared = false; + context = isFunction(context) ? context() : context; + const subResolver = this.createResolver(scopes, context, subPrefixes); + options = _attachContext(resolver, context, subResolver); + } + for (const prop of names) { + result[prop] = options[prop]; + } + return result; + } + createResolver(scopes, context, prefixes = [''], descriptorDefaults) { + const {resolver} = getResolver(this._resolverCache, scopes, prefixes); + return isObject(context) + ? _attachContext(resolver, context, undefined, descriptorDefaults) + : resolver; + } +} +function getResolver(resolverCache, scopes, prefixes) { + let cache = resolverCache.get(scopes); + if (!cache) { + cache = new Map(); + resolverCache.set(scopes, cache); + } + const cacheKey = prefixes.join(); + let cached = cache.get(cacheKey); + if (!cached) { + const resolver = _createResolver(scopes, prefixes); + cached = { + resolver, + subPrefixes: prefixes.filter(p => !p.toLowerCase().includes('hover')) + }; + cache.set(cacheKey, cached); + } + return cached; +} +const hasFunction = value => isObject(value) + && Object.getOwnPropertyNames(value).reduce((acc, key) => acc || isFunction(value[key]), false); +function needContext(proxy, names) { + const {isScriptable, isIndexable} = _descriptors(proxy); + for (const prop of names) { + const scriptable = isScriptable(prop); + const indexable = isIndexable(prop); + const value = (indexable || scriptable) && proxy[prop]; + if ((scriptable && (isFunction(value) || hasFunction(value))) + || (indexable && isArray(value))) { + return true; + } + } + return false; +} + +var version = "3.7.0"; + +const KNOWN_POSITIONS = ['top', 'bottom', 'left', 'right', 'chartArea']; +function positionIsHorizontal(position, axis) { + return position === 'top' || position === 'bottom' || (KNOWN_POSITIONS.indexOf(position) === -1 && axis === 'x'); +} +function compare2Level(l1, l2) { + return function(a, b) { + return a[l1] === b[l1] + ? a[l2] - b[l2] + : a[l1] - b[l1]; + }; +} +function onAnimationsComplete(context) { + const chart = context.chart; + const animationOptions = chart.options.animation; + chart.notifyPlugins('afterRender'); + callback(animationOptions && animationOptions.onComplete, [context], chart); +} +function onAnimationProgress(context) { + const chart = context.chart; + const animationOptions = chart.options.animation; + callback(animationOptions && animationOptions.onProgress, [context], chart); +} +function getCanvas(item) { + if (_isDomSupported() && typeof item === 'string') { + item = document.getElementById(item); + } else if (item && item.length) { + item = item[0]; + } + if (item && item.canvas) { + item = item.canvas; + } + return item; +} +const instances = {}; +const getChart = (key) => { + const canvas = getCanvas(key); + return Object.values(instances).filter((c) => c.canvas === canvas).pop(); +}; +function moveNumericKeys(obj, start, move) { + const keys = Object.keys(obj); + for (const key of keys) { + const intKey = +key; + if (intKey >= start) { + const value = obj[key]; + delete obj[key]; + if (move > 0 || intKey > start) { + obj[intKey + move] = value; + } + } + } +} +function determineLastEvent(e, lastEvent, inChartArea, isClick) { + if (!inChartArea || e.type === 'mouseout') { + return null; + } + if (isClick) { + return lastEvent; + } + return e; +} +class Chart { + constructor(item, userConfig) { + const config = this.config = new Config(userConfig); + const initialCanvas = getCanvas(item); + const existingChart = getChart(initialCanvas); + if (existingChart) { + throw new Error( + 'Canvas is already in use. Chart with ID \'' + existingChart.id + '\'' + + ' must be destroyed before the canvas can be reused.' + ); + } + const options = config.createResolver(config.chartOptionScopes(), this.getContext()); + this.platform = new (config.platform || _detectPlatform(initialCanvas))(); + this.platform.updateConfig(config); + const context = this.platform.acquireContext(initialCanvas, options.aspectRatio); + const canvas = context && context.canvas; + const height = canvas && canvas.height; + const width = canvas && canvas.width; + this.id = uid(); + this.ctx = context; + this.canvas = canvas; + this.width = width; + this.height = height; + this._options = options; + this._aspectRatio = this.aspectRatio; + this._layers = []; + this._metasets = []; + this._stacks = undefined; + this.boxes = []; + this.currentDevicePixelRatio = undefined; + this.chartArea = undefined; + this._active = []; + this._lastEvent = undefined; + this._listeners = {}; + this._responsiveListeners = undefined; + this._sortedMetasets = []; + this.scales = {}; + this._plugins = new PluginService(); + this.$proxies = {}; + this._hiddenIndices = {}; + this.attached = false; + this._animationsDisabled = undefined; + this.$context = undefined; + this._doResize = debounce(mode => this.update(mode), options.resizeDelay || 0); + this._dataChanges = []; + instances[this.id] = this; + if (!context || !canvas) { + console.error("Failed to create chart: can't acquire context from the given item"); + return; + } + animator.listen(this, 'complete', onAnimationsComplete); + animator.listen(this, 'progress', onAnimationProgress); + this._initialize(); + if (this.attached) { + this.update(); + } + } + get aspectRatio() { + const {options: {aspectRatio, maintainAspectRatio}, width, height, _aspectRatio} = this; + if (!isNullOrUndef(aspectRatio)) { + return aspectRatio; + } + if (maintainAspectRatio && _aspectRatio) { + return _aspectRatio; + } + return height ? width / height : null; + } + get data() { + return this.config.data; + } + set data(data) { + this.config.data = data; + } + get options() { + return this._options; + } + set options(options) { + this.config.options = options; + } + _initialize() { + this.notifyPlugins('beforeInit'); + if (this.options.responsive) { + this.resize(); + } else { + retinaScale(this, this.options.devicePixelRatio); + } + this.bindEvents(); + this.notifyPlugins('afterInit'); + return this; + } + clear() { + clearCanvas(this.canvas, this.ctx); + return this; + } + stop() { + animator.stop(this); + return this; + } + resize(width, height) { + if (!animator.running(this)) { + this._resize(width, height); + } else { + this._resizeBeforeDraw = {width, height}; + } + } + _resize(width, height) { + const options = this.options; + const canvas = this.canvas; + const aspectRatio = options.maintainAspectRatio && this.aspectRatio; + const newSize = this.platform.getMaximumSize(canvas, width, height, aspectRatio); + const newRatio = options.devicePixelRatio || this.platform.getDevicePixelRatio(); + const mode = this.width ? 'resize' : 'attach'; + this.width = newSize.width; + this.height = newSize.height; + this._aspectRatio = this.aspectRatio; + if (!retinaScale(this, newRatio, true)) { + return; + } + this.notifyPlugins('resize', {size: newSize}); + callback(options.onResize, [this, newSize], this); + if (this.attached) { + if (this._doResize(mode)) { + this.render(); + } + } + } + ensureScalesHaveIDs() { + const options = this.options; + const scalesOptions = options.scales || {}; + each(scalesOptions, (axisOptions, axisID) => { + axisOptions.id = axisID; + }); + } + buildOrUpdateScales() { + const options = this.options; + const scaleOpts = options.scales; + const scales = this.scales; + const updated = Object.keys(scales).reduce((obj, id) => { + obj[id] = false; + return obj; + }, {}); + let items = []; + if (scaleOpts) { + items = items.concat( + Object.keys(scaleOpts).map((id) => { + const scaleOptions = scaleOpts[id]; + const axis = determineAxis(id, scaleOptions); + const isRadial = axis === 'r'; + const isHorizontal = axis === 'x'; + return { + options: scaleOptions, + dposition: isRadial ? 'chartArea' : isHorizontal ? 'bottom' : 'left', + dtype: isRadial ? 'radialLinear' : isHorizontal ? 'category' : 'linear' + }; + }) + ); + } + each(items, (item) => { + const scaleOptions = item.options; + const id = scaleOptions.id; + const axis = determineAxis(id, scaleOptions); + const scaleType = valueOrDefault(scaleOptions.type, item.dtype); + if (scaleOptions.position === undefined || positionIsHorizontal(scaleOptions.position, axis) !== positionIsHorizontal(item.dposition)) { + scaleOptions.position = item.dposition; + } + updated[id] = true; + let scale = null; + if (id in scales && scales[id].type === scaleType) { + scale = scales[id]; + } else { + const scaleClass = registry.getScale(scaleType); + scale = new scaleClass({ + id, + type: scaleType, + ctx: this.ctx, + chart: this + }); + scales[scale.id] = scale; + } + scale.init(scaleOptions, options); + }); + each(updated, (hasUpdated, id) => { + if (!hasUpdated) { + delete scales[id]; + } + }); + each(scales, (scale) => { + layouts.configure(this, scale, scale.options); + layouts.addBox(this, scale); + }); + } + _updateMetasets() { + const metasets = this._metasets; + const numData = this.data.datasets.length; + const numMeta = metasets.length; + metasets.sort((a, b) => a.index - b.index); + if (numMeta > numData) { + for (let i = numData; i < numMeta; ++i) { + this._destroyDatasetMeta(i); + } + metasets.splice(numData, numMeta - numData); + } + this._sortedMetasets = metasets.slice(0).sort(compare2Level('order', 'index')); + } + _removeUnreferencedMetasets() { + const {_metasets: metasets, data: {datasets}} = this; + if (metasets.length > datasets.length) { + delete this._stacks; + } + metasets.forEach((meta, index) => { + if (datasets.filter(x => x === meta._dataset).length === 0) { + this._destroyDatasetMeta(index); + } + }); + } + buildOrUpdateControllers() { + const newControllers = []; + const datasets = this.data.datasets; + let i, ilen; + this._removeUnreferencedMetasets(); + for (i = 0, ilen = datasets.length; i < ilen; i++) { + const dataset = datasets[i]; + let meta = this.getDatasetMeta(i); + const type = dataset.type || this.config.type; + if (meta.type && meta.type !== type) { + this._destroyDatasetMeta(i); + meta = this.getDatasetMeta(i); + } + meta.type = type; + meta.indexAxis = dataset.indexAxis || getIndexAxis(type, this.options); + meta.order = dataset.order || 0; + meta.index = i; + meta.label = '' + dataset.label; + meta.visible = this.isDatasetVisible(i); + if (meta.controller) { + meta.controller.updateIndex(i); + meta.controller.linkScales(); + } else { + const ControllerClass = registry.getController(type); + const {datasetElementType, dataElementType} = defaults.datasets[type]; + Object.assign(ControllerClass.prototype, { + dataElementType: registry.getElement(dataElementType), + datasetElementType: datasetElementType && registry.getElement(datasetElementType) + }); + meta.controller = new ControllerClass(this, i); + newControllers.push(meta.controller); + } + } + this._updateMetasets(); + return newControllers; + } + _resetElements() { + each(this.data.datasets, (dataset, datasetIndex) => { + this.getDatasetMeta(datasetIndex).controller.reset(); + }, this); + } + reset() { + this._resetElements(); + this.notifyPlugins('reset'); + } + update(mode) { + const config = this.config; + config.update(); + const options = this._options = config.createResolver(config.chartOptionScopes(), this.getContext()); + const animsDisabled = this._animationsDisabled = !options.animation; + this._updateScales(); + this._checkEventBindings(); + this._updateHiddenIndices(); + this._plugins.invalidate(); + if (this.notifyPlugins('beforeUpdate', {mode, cancelable: true}) === false) { + return; + } + const newControllers = this.buildOrUpdateControllers(); + this.notifyPlugins('beforeElementsUpdate'); + let minPadding = 0; + for (let i = 0, ilen = this.data.datasets.length; i < ilen; i++) { + const {controller} = this.getDatasetMeta(i); + const reset = !animsDisabled && newControllers.indexOf(controller) === -1; + controller.buildOrUpdateElements(reset); + minPadding = Math.max(+controller.getMaxOverflow(), minPadding); + } + minPadding = this._minPadding = options.layout.autoPadding ? minPadding : 0; + this._updateLayout(minPadding); + if (!animsDisabled) { + each(newControllers, (controller) => { + controller.reset(); + }); + } + this._updateDatasets(mode); + this.notifyPlugins('afterUpdate', {mode}); + this._layers.sort(compare2Level('z', '_idx')); + const {_active, _lastEvent} = this; + if (_lastEvent) { + this._eventHandler(_lastEvent, true); + } else if (_active.length) { + this._updateHoverStyles(_active, _active, true); + } + this.render(); + } + _updateScales() { + each(this.scales, (scale) => { + layouts.removeBox(this, scale); + }); + this.ensureScalesHaveIDs(); + this.buildOrUpdateScales(); + } + _checkEventBindings() { + const options = this.options; + const existingEvents = new Set(Object.keys(this._listeners)); + const newEvents = new Set(options.events); + if (!setsEqual(existingEvents, newEvents) || !!this._responsiveListeners !== options.responsive) { + this.unbindEvents(); + this.bindEvents(); + } + } + _updateHiddenIndices() { + const {_hiddenIndices} = this; + const changes = this._getUniformDataChanges() || []; + for (const {method, start, count} of changes) { + const move = method === '_removeElements' ? -count : count; + moveNumericKeys(_hiddenIndices, start, move); + } + } + _getUniformDataChanges() { + const _dataChanges = this._dataChanges; + if (!_dataChanges || !_dataChanges.length) { + return; + } + this._dataChanges = []; + const datasetCount = this.data.datasets.length; + const makeSet = (idx) => new Set( + _dataChanges + .filter(c => c[0] === idx) + .map((c, i) => i + ',' + c.splice(1).join(',')) + ); + const changeSet = makeSet(0); + for (let i = 1; i < datasetCount; i++) { + if (!setsEqual(changeSet, makeSet(i))) { + return; + } + } + return Array.from(changeSet) + .map(c => c.split(',')) + .map(a => ({method: a[1], start: +a[2], count: +a[3]})); + } + _updateLayout(minPadding) { + if (this.notifyPlugins('beforeLayout', {cancelable: true}) === false) { + return; + } + layouts.update(this, this.width, this.height, minPadding); + const area = this.chartArea; + const noArea = area.width <= 0 || area.height <= 0; + this._layers = []; + each(this.boxes, (box) => { + if (noArea && box.position === 'chartArea') { + return; + } + if (box.configure) { + box.configure(); + } + this._layers.push(...box._layers()); + }, this); + this._layers.forEach((item, index) => { + item._idx = index; + }); + this.notifyPlugins('afterLayout'); + } + _updateDatasets(mode) { + if (this.notifyPlugins('beforeDatasetsUpdate', {mode, cancelable: true}) === false) { + return; + } + for (let i = 0, ilen = this.data.datasets.length; i < ilen; ++i) { + this.getDatasetMeta(i).controller.configure(); + } + for (let i = 0, ilen = this.data.datasets.length; i < ilen; ++i) { + this._updateDataset(i, isFunction(mode) ? mode({datasetIndex: i}) : mode); + } + this.notifyPlugins('afterDatasetsUpdate', {mode}); + } + _updateDataset(index, mode) { + const meta = this.getDatasetMeta(index); + const args = {meta, index, mode, cancelable: true}; + if (this.notifyPlugins('beforeDatasetUpdate', args) === false) { + return; + } + meta.controller._update(mode); + args.cancelable = false; + this.notifyPlugins('afterDatasetUpdate', args); + } + render() { + if (this.notifyPlugins('beforeRender', {cancelable: true}) === false) { + return; + } + if (animator.has(this)) { + if (this.attached && !animator.running(this)) { + animator.start(this); + } + } else { + this.draw(); + onAnimationsComplete({chart: this}); + } + } + draw() { + let i; + if (this._resizeBeforeDraw) { + const {width, height} = this._resizeBeforeDraw; + this._resize(width, height); + this._resizeBeforeDraw = null; + } + this.clear(); + if (this.width <= 0 || this.height <= 0) { + return; + } + if (this.notifyPlugins('beforeDraw', {cancelable: true}) === false) { + return; + } + const layers = this._layers; + for (i = 0; i < layers.length && layers[i].z <= 0; ++i) { + layers[i].draw(this.chartArea); + } + this._drawDatasets(); + for (; i < layers.length; ++i) { + layers[i].draw(this.chartArea); + } + this.notifyPlugins('afterDraw'); + } + _getSortedDatasetMetas(filterVisible) { + const metasets = this._sortedMetasets; + const result = []; + let i, ilen; + for (i = 0, ilen = metasets.length; i < ilen; ++i) { + const meta = metasets[i]; + if (!filterVisible || meta.visible) { + result.push(meta); + } + } + return result; + } + getSortedVisibleDatasetMetas() { + return this._getSortedDatasetMetas(true); + } + _drawDatasets() { + if (this.notifyPlugins('beforeDatasetsDraw', {cancelable: true}) === false) { + return; + } + const metasets = this.getSortedVisibleDatasetMetas(); + for (let i = metasets.length - 1; i >= 0; --i) { + this._drawDataset(metasets[i]); + } + this.notifyPlugins('afterDatasetsDraw'); + } + _drawDataset(meta) { + const ctx = this.ctx; + const clip = meta._clip; + const useClip = !clip.disabled; + const area = this.chartArea; + const args = { + meta, + index: meta.index, + cancelable: true + }; + if (this.notifyPlugins('beforeDatasetDraw', args) === false) { + return; + } + if (useClip) { + clipArea(ctx, { + left: clip.left === false ? 0 : area.left - clip.left, + right: clip.right === false ? this.width : area.right + clip.right, + top: clip.top === false ? 0 : area.top - clip.top, + bottom: clip.bottom === false ? this.height : area.bottom + clip.bottom + }); + } + meta.controller.draw(); + if (useClip) { + unclipArea(ctx); + } + args.cancelable = false; + this.notifyPlugins('afterDatasetDraw', args); + } + getElementsAtEventForMode(e, mode, options, useFinalPosition) { + const method = Interaction.modes[mode]; + if (typeof method === 'function') { + return method(this, e, options, useFinalPosition); + } + return []; + } + getDatasetMeta(datasetIndex) { + const dataset = this.data.datasets[datasetIndex]; + const metasets = this._metasets; + let meta = metasets.filter(x => x && x._dataset === dataset).pop(); + if (!meta) { + meta = { + type: null, + data: [], + dataset: null, + controller: null, + hidden: null, + xAxisID: null, + yAxisID: null, + order: dataset && dataset.order || 0, + index: datasetIndex, + _dataset: dataset, + _parsed: [], + _sorted: false + }; + metasets.push(meta); + } + return meta; + } + getContext() { + return this.$context || (this.$context = createContext(null, {chart: this, type: 'chart'})); + } + getVisibleDatasetCount() { + return this.getSortedVisibleDatasetMetas().length; + } + isDatasetVisible(datasetIndex) { + const dataset = this.data.datasets[datasetIndex]; + if (!dataset) { + return false; + } + const meta = this.getDatasetMeta(datasetIndex); + return typeof meta.hidden === 'boolean' ? !meta.hidden : !dataset.hidden; + } + setDatasetVisibility(datasetIndex, visible) { + const meta = this.getDatasetMeta(datasetIndex); + meta.hidden = !visible; + } + toggleDataVisibility(index) { + this._hiddenIndices[index] = !this._hiddenIndices[index]; + } + getDataVisibility(index) { + return !this._hiddenIndices[index]; + } + _updateVisibility(datasetIndex, dataIndex, visible) { + const mode = visible ? 'show' : 'hide'; + const meta = this.getDatasetMeta(datasetIndex); + const anims = meta.controller._resolveAnimations(undefined, mode); + if (defined(dataIndex)) { + meta.data[dataIndex].hidden = !visible; + this.update(); + } else { + this.setDatasetVisibility(datasetIndex, visible); + anims.update(meta, {visible}); + this.update((ctx) => ctx.datasetIndex === datasetIndex ? mode : undefined); + } + } + hide(datasetIndex, dataIndex) { + this._updateVisibility(datasetIndex, dataIndex, false); + } + show(datasetIndex, dataIndex) { + this._updateVisibility(datasetIndex, dataIndex, true); + } + _destroyDatasetMeta(datasetIndex) { + const meta = this._metasets[datasetIndex]; + if (meta && meta.controller) { + meta.controller._destroy(); + } + delete this._metasets[datasetIndex]; + } + _stop() { + let i, ilen; + this.stop(); + animator.remove(this); + for (i = 0, ilen = this.data.datasets.length; i < ilen; ++i) { + this._destroyDatasetMeta(i); + } + } + destroy() { + this.notifyPlugins('beforeDestroy'); + const {canvas, ctx} = this; + this._stop(); + this.config.clearCache(); + if (canvas) { + this.unbindEvents(); + clearCanvas(canvas, ctx); + this.platform.releaseContext(ctx); + this.canvas = null; + this.ctx = null; + } + this.notifyPlugins('destroy'); + delete instances[this.id]; + this.notifyPlugins('afterDestroy'); + } + toBase64Image(...args) { + return this.canvas.toDataURL(...args); + } + bindEvents() { + this.bindUserEvents(); + if (this.options.responsive) { + this.bindResponsiveEvents(); + } else { + this.attached = true; + } + } + bindUserEvents() { + const listeners = this._listeners; + const platform = this.platform; + const _add = (type, listener) => { + platform.addEventListener(this, type, listener); + listeners[type] = listener; + }; + const listener = (e, x, y) => { + e.offsetX = x; + e.offsetY = y; + this._eventHandler(e); + }; + each(this.options.events, (type) => _add(type, listener)); + } + bindResponsiveEvents() { + if (!this._responsiveListeners) { + this._responsiveListeners = {}; + } + const listeners = this._responsiveListeners; + const platform = this.platform; + const _add = (type, listener) => { + platform.addEventListener(this, type, listener); + listeners[type] = listener; + }; + const _remove = (type, listener) => { + if (listeners[type]) { + platform.removeEventListener(this, type, listener); + delete listeners[type]; + } + }; + const listener = (width, height) => { + if (this.canvas) { + this.resize(width, height); + } + }; + let detached; + const attached = () => { + _remove('attach', attached); + this.attached = true; + this.resize(); + _add('resize', listener); + _add('detach', detached); + }; + detached = () => { + this.attached = false; + _remove('resize', listener); + this._stop(); + this._resize(0, 0); + _add('attach', attached); + }; + if (platform.isAttached(this.canvas)) { + attached(); + } else { + detached(); + } + } + unbindEvents() { + each(this._listeners, (listener, type) => { + this.platform.removeEventListener(this, type, listener); + }); + this._listeners = {}; + each(this._responsiveListeners, (listener, type) => { + this.platform.removeEventListener(this, type, listener); + }); + this._responsiveListeners = undefined; + } + updateHoverStyle(items, mode, enabled) { + const prefix = enabled ? 'set' : 'remove'; + let meta, item, i, ilen; + if (mode === 'dataset') { + meta = this.getDatasetMeta(items[0].datasetIndex); + meta.controller['_' + prefix + 'DatasetHoverStyle'](); + } + for (i = 0, ilen = items.length; i < ilen; ++i) { + item = items[i]; + const controller = item && this.getDatasetMeta(item.datasetIndex).controller; + if (controller) { + controller[prefix + 'HoverStyle'](item.element, item.datasetIndex, item.index); + } + } + } + getActiveElements() { + return this._active || []; + } + setActiveElements(activeElements) { + const lastActive = this._active || []; + const active = activeElements.map(({datasetIndex, index}) => { + const meta = this.getDatasetMeta(datasetIndex); + if (!meta) { + throw new Error('No dataset found at index ' + datasetIndex); + } + return { + datasetIndex, + element: meta.data[index], + index, + }; + }); + const changed = !_elementsEqual(active, lastActive); + if (changed) { + this._active = active; + this._lastEvent = null; + this._updateHoverStyles(active, lastActive); + } + } + notifyPlugins(hook, args, filter) { + return this._plugins.notify(this, hook, args, filter); + } + _updateHoverStyles(active, lastActive, replay) { + const hoverOptions = this.options.hover; + const diff = (a, b) => a.filter(x => !b.some(y => x.datasetIndex === y.datasetIndex && x.index === y.index)); + const deactivated = diff(lastActive, active); + const activated = replay ? active : diff(active, lastActive); + if (deactivated.length) { + this.updateHoverStyle(deactivated, hoverOptions.mode, false); + } + if (activated.length && hoverOptions.mode) { + this.updateHoverStyle(activated, hoverOptions.mode, true); + } + } + _eventHandler(e, replay) { + const args = { + event: e, + replay, + cancelable: true, + inChartArea: _isPointInArea(e, this.chartArea, this._minPadding) + }; + const eventFilter = (plugin) => (plugin.options.events || this.options.events).includes(e.native.type); + if (this.notifyPlugins('beforeEvent', args, eventFilter) === false) { + return; + } + const changed = this._handleEvent(e, replay, args.inChartArea); + args.cancelable = false; + this.notifyPlugins('afterEvent', args, eventFilter); + if (changed || args.changed) { + this.render(); + } + return this; + } + _handleEvent(e, replay, inChartArea) { + const {_active: lastActive = [], options} = this; + const useFinalPosition = replay; + const active = this._getActiveElements(e, lastActive, inChartArea, useFinalPosition); + const isClick = _isClickEvent(e); + const lastEvent = determineLastEvent(e, this._lastEvent, inChartArea, isClick); + if (inChartArea) { + this._lastEvent = null; + callback(options.onHover, [e, active, this], this); + if (isClick) { + callback(options.onClick, [e, active, this], this); + } + } + const changed = !_elementsEqual(active, lastActive); + if (changed || replay) { + this._active = active; + this._updateHoverStyles(active, lastActive, replay); + } + this._lastEvent = lastEvent; + return changed; + } + _getActiveElements(e, lastActive, inChartArea, useFinalPosition) { + if (e.type === 'mouseout') { + return []; + } + if (!inChartArea) { + return lastActive; + } + const hoverOptions = this.options.hover; + return this.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions, useFinalPosition); + } +} +const invalidatePlugins = () => each(Chart.instances, (chart) => chart._plugins.invalidate()); +const enumerable = true; +Object.defineProperties(Chart, { + defaults: { + enumerable, + value: defaults + }, + instances: { + enumerable, + value: instances + }, + overrides: { + enumerable, + value: overrides + }, + registry: { + enumerable, + value: registry + }, + version: { + enumerable, + value: version + }, + getChart: { + enumerable, + value: getChart + }, + register: { + enumerable, + value: (...items) => { + registry.add(...items); + invalidatePlugins(); + } + }, + unregister: { + enumerable, + value: (...items) => { + registry.remove(...items); + invalidatePlugins(); + } + } +}); + +function clipArc(ctx, element, endAngle) { + const {startAngle, pixelMargin, x, y, outerRadius, innerRadius} = element; + let angleMargin = pixelMargin / outerRadius; + ctx.beginPath(); + ctx.arc(x, y, outerRadius, startAngle - angleMargin, endAngle + angleMargin); + if (innerRadius > pixelMargin) { + angleMargin = pixelMargin / innerRadius; + ctx.arc(x, y, innerRadius, endAngle + angleMargin, startAngle - angleMargin, true); + } else { + ctx.arc(x, y, pixelMargin, endAngle + HALF_PI, startAngle - HALF_PI); + } + ctx.closePath(); + ctx.clip(); +} +function toRadiusCorners(value) { + return _readValueToProps(value, ['outerStart', 'outerEnd', 'innerStart', 'innerEnd']); +} +function parseBorderRadius$1(arc, innerRadius, outerRadius, angleDelta) { + const o = toRadiusCorners(arc.options.borderRadius); + const halfThickness = (outerRadius - innerRadius) / 2; + const innerLimit = Math.min(halfThickness, angleDelta * innerRadius / 2); + const computeOuterLimit = (val) => { + const outerArcLimit = (outerRadius - Math.min(halfThickness, val)) * angleDelta / 2; + return _limitValue(val, 0, Math.min(halfThickness, outerArcLimit)); + }; + return { + outerStart: computeOuterLimit(o.outerStart), + outerEnd: computeOuterLimit(o.outerEnd), + innerStart: _limitValue(o.innerStart, 0, innerLimit), + innerEnd: _limitValue(o.innerEnd, 0, innerLimit), + }; +} +function rThetaToXY(r, theta, x, y) { + return { + x: x + r * Math.cos(theta), + y: y + r * Math.sin(theta), + }; +} +function pathArc(ctx, element, offset, spacing, end) { + const {x, y, startAngle: start, pixelMargin, innerRadius: innerR} = element; + const outerRadius = Math.max(element.outerRadius + spacing + offset - pixelMargin, 0); + const innerRadius = innerR > 0 ? innerR + spacing + offset + pixelMargin : 0; + let spacingOffset = 0; + const alpha = end - start; + if (spacing) { + const noSpacingInnerRadius = innerR > 0 ? innerR - spacing : 0; + const noSpacingOuterRadius = outerRadius > 0 ? outerRadius - spacing : 0; + const avNogSpacingRadius = (noSpacingInnerRadius + noSpacingOuterRadius) / 2; + const adjustedAngle = avNogSpacingRadius !== 0 ? (alpha * avNogSpacingRadius) / (avNogSpacingRadius + spacing) : alpha; + spacingOffset = (alpha - adjustedAngle) / 2; + } + const beta = Math.max(0.001, alpha * outerRadius - offset / PI) / outerRadius; + const angleOffset = (alpha - beta) / 2; + const startAngle = start + angleOffset + spacingOffset; + const endAngle = end - angleOffset - spacingOffset; + const {outerStart, outerEnd, innerStart, innerEnd} = parseBorderRadius$1(element, innerRadius, outerRadius, endAngle - startAngle); + const outerStartAdjustedRadius = outerRadius - outerStart; + const outerEndAdjustedRadius = outerRadius - outerEnd; + const outerStartAdjustedAngle = startAngle + outerStart / outerStartAdjustedRadius; + const outerEndAdjustedAngle = endAngle - outerEnd / outerEndAdjustedRadius; + const innerStartAdjustedRadius = innerRadius + innerStart; + const innerEndAdjustedRadius = innerRadius + innerEnd; + const innerStartAdjustedAngle = startAngle + innerStart / innerStartAdjustedRadius; + const innerEndAdjustedAngle = endAngle - innerEnd / innerEndAdjustedRadius; + ctx.beginPath(); + ctx.arc(x, y, outerRadius, outerStartAdjustedAngle, outerEndAdjustedAngle); + if (outerEnd > 0) { + const pCenter = rThetaToXY(outerEndAdjustedRadius, outerEndAdjustedAngle, x, y); + ctx.arc(pCenter.x, pCenter.y, outerEnd, outerEndAdjustedAngle, endAngle + HALF_PI); + } + const p4 = rThetaToXY(innerEndAdjustedRadius, endAngle, x, y); + ctx.lineTo(p4.x, p4.y); + if (innerEnd > 0) { + const pCenter = rThetaToXY(innerEndAdjustedRadius, innerEndAdjustedAngle, x, y); + ctx.arc(pCenter.x, pCenter.y, innerEnd, endAngle + HALF_PI, innerEndAdjustedAngle + Math.PI); + } + ctx.arc(x, y, innerRadius, endAngle - (innerEnd / innerRadius), startAngle + (innerStart / innerRadius), true); + if (innerStart > 0) { + const pCenter = rThetaToXY(innerStartAdjustedRadius, innerStartAdjustedAngle, x, y); + ctx.arc(pCenter.x, pCenter.y, innerStart, innerStartAdjustedAngle + Math.PI, startAngle - HALF_PI); + } + const p8 = rThetaToXY(outerStartAdjustedRadius, startAngle, x, y); + ctx.lineTo(p8.x, p8.y); + if (outerStart > 0) { + const pCenter = rThetaToXY(outerStartAdjustedRadius, outerStartAdjustedAngle, x, y); + ctx.arc(pCenter.x, pCenter.y, outerStart, startAngle - HALF_PI, outerStartAdjustedAngle); + } + ctx.closePath(); +} +function drawArc(ctx, element, offset, spacing) { + const {fullCircles, startAngle, circumference} = element; + let endAngle = element.endAngle; + if (fullCircles) { + pathArc(ctx, element, offset, spacing, startAngle + TAU); + for (let i = 0; i < fullCircles; ++i) { + ctx.fill(); + } + if (!isNaN(circumference)) { + endAngle = startAngle + circumference % TAU; + if (circumference % TAU === 0) { + endAngle += TAU; + } + } + } + pathArc(ctx, element, offset, spacing, endAngle); + ctx.fill(); + return endAngle; +} +function drawFullCircleBorders(ctx, element, inner) { + const {x, y, startAngle, pixelMargin, fullCircles} = element; + const outerRadius = Math.max(element.outerRadius - pixelMargin, 0); + const innerRadius = element.innerRadius + pixelMargin; + let i; + if (inner) { + clipArc(ctx, element, startAngle + TAU); + } + ctx.beginPath(); + ctx.arc(x, y, innerRadius, startAngle + TAU, startAngle, true); + for (i = 0; i < fullCircles; ++i) { + ctx.stroke(); + } + ctx.beginPath(); + ctx.arc(x, y, outerRadius, startAngle, startAngle + TAU); + for (i = 0; i < fullCircles; ++i) { + ctx.stroke(); + } +} +function drawBorder(ctx, element, offset, spacing, endAngle) { + const {options} = element; + const {borderWidth, borderJoinStyle} = options; + const inner = options.borderAlign === 'inner'; + if (!borderWidth) { + return; + } + if (inner) { + ctx.lineWidth = borderWidth * 2; + ctx.lineJoin = borderJoinStyle || 'round'; + } else { + ctx.lineWidth = borderWidth; + ctx.lineJoin = borderJoinStyle || 'bevel'; + } + if (element.fullCircles) { + drawFullCircleBorders(ctx, element, inner); + } + if (inner) { + clipArc(ctx, element, endAngle); + } + pathArc(ctx, element, offset, spacing, endAngle); + ctx.stroke(); +} +class ArcElement extends Element { + constructor(cfg) { + super(); + this.options = undefined; + this.circumference = undefined; + this.startAngle = undefined; + this.endAngle = undefined; + this.innerRadius = undefined; + this.outerRadius = undefined; + this.pixelMargin = 0; + this.fullCircles = 0; + if (cfg) { + Object.assign(this, cfg); + } + } + inRange(chartX, chartY, useFinalPosition) { + const point = this.getProps(['x', 'y'], useFinalPosition); + const {angle, distance} = getAngleFromPoint(point, {x: chartX, y: chartY}); + const {startAngle, endAngle, innerRadius, outerRadius, circumference} = this.getProps([ + 'startAngle', + 'endAngle', + 'innerRadius', + 'outerRadius', + 'circumference' + ], useFinalPosition); + const rAdjust = this.options.spacing / 2; + const _circumference = valueOrDefault(circumference, endAngle - startAngle); + const betweenAngles = _circumference >= TAU || _angleBetween(angle, startAngle, endAngle); + const withinRadius = _isBetween(distance, innerRadius + rAdjust, outerRadius + rAdjust); + return (betweenAngles && withinRadius); + } + getCenterPoint(useFinalPosition) { + const {x, y, startAngle, endAngle, innerRadius, outerRadius} = this.getProps([ + 'x', + 'y', + 'startAngle', + 'endAngle', + 'innerRadius', + 'outerRadius', + 'circumference', + ], useFinalPosition); + const {offset, spacing} = this.options; + const halfAngle = (startAngle + endAngle) / 2; + const halfRadius = (innerRadius + outerRadius + spacing + offset) / 2; + return { + x: x + Math.cos(halfAngle) * halfRadius, + y: y + Math.sin(halfAngle) * halfRadius + }; + } + tooltipPosition(useFinalPosition) { + return this.getCenterPoint(useFinalPosition); + } + draw(ctx) { + const {options, circumference} = this; + const offset = (options.offset || 0) / 2; + const spacing = (options.spacing || 0) / 2; + this.pixelMargin = (options.borderAlign === 'inner') ? 0.33 : 0; + this.fullCircles = circumference > TAU ? Math.floor(circumference / TAU) : 0; + if (circumference === 0 || this.innerRadius < 0 || this.outerRadius < 0) { + return; + } + ctx.save(); + let radiusOffset = 0; + if (offset) { + radiusOffset = offset / 2; + const halfAngle = (this.startAngle + this.endAngle) / 2; + ctx.translate(Math.cos(halfAngle) * radiusOffset, Math.sin(halfAngle) * radiusOffset); + if (this.circumference >= PI) { + radiusOffset = offset; + } + } + ctx.fillStyle = options.backgroundColor; + ctx.strokeStyle = options.borderColor; + const endAngle = drawArc(ctx, this, radiusOffset, spacing); + drawBorder(ctx, this, radiusOffset, spacing, endAngle); + ctx.restore(); + } +} +ArcElement.id = 'arc'; +ArcElement.defaults = { + borderAlign: 'center', + borderColor: '#fff', + borderJoinStyle: undefined, + borderRadius: 0, + borderWidth: 2, + offset: 0, + spacing: 0, + angle: undefined, +}; +ArcElement.defaultRoutes = { + backgroundColor: 'backgroundColor' +}; + +function setStyle(ctx, options, style = options) { + ctx.lineCap = valueOrDefault(style.borderCapStyle, options.borderCapStyle); + ctx.setLineDash(valueOrDefault(style.borderDash, options.borderDash)); + ctx.lineDashOffset = valueOrDefault(style.borderDashOffset, options.borderDashOffset); + ctx.lineJoin = valueOrDefault(style.borderJoinStyle, options.borderJoinStyle); + ctx.lineWidth = valueOrDefault(style.borderWidth, options.borderWidth); + ctx.strokeStyle = valueOrDefault(style.borderColor, options.borderColor); +} +function lineTo(ctx, previous, target) { + ctx.lineTo(target.x, target.y); +} +function getLineMethod(options) { + if (options.stepped) { + return _steppedLineTo; + } + if (options.tension || options.cubicInterpolationMode === 'monotone') { + return _bezierCurveTo; + } + return lineTo; +} +function pathVars(points, segment, params = {}) { + const count = points.length; + const {start: paramsStart = 0, end: paramsEnd = count - 1} = params; + const {start: segmentStart, end: segmentEnd} = segment; + const start = Math.max(paramsStart, segmentStart); + const end = Math.min(paramsEnd, segmentEnd); + const outside = paramsStart < segmentStart && paramsEnd < segmentStart || paramsStart > segmentEnd && paramsEnd > segmentEnd; + return { + count, + start, + loop: segment.loop, + ilen: end < start && !outside ? count + end - start : end - start + }; +} +function pathSegment(ctx, line, segment, params) { + const {points, options} = line; + const {count, start, loop, ilen} = pathVars(points, segment, params); + const lineMethod = getLineMethod(options); + let {move = true, reverse} = params || {}; + let i, point, prev; + for (i = 0; i <= ilen; ++i) { + point = points[(start + (reverse ? ilen - i : i)) % count]; + if (point.skip) { + continue; + } else if (move) { + ctx.moveTo(point.x, point.y); + move = false; + } else { + lineMethod(ctx, prev, point, reverse, options.stepped); + } + prev = point; + } + if (loop) { + point = points[(start + (reverse ? ilen : 0)) % count]; + lineMethod(ctx, prev, point, reverse, options.stepped); + } + return !!loop; +} +function fastPathSegment(ctx, line, segment, params) { + const points = line.points; + const {count, start, ilen} = pathVars(points, segment, params); + const {move = true, reverse} = params || {}; + let avgX = 0; + let countX = 0; + let i, point, prevX, minY, maxY, lastY; + const pointIndex = (index) => (start + (reverse ? ilen - index : index)) % count; + const drawX = () => { + if (minY !== maxY) { + ctx.lineTo(avgX, maxY); + ctx.lineTo(avgX, minY); + ctx.lineTo(avgX, lastY); + } + }; + if (move) { + point = points[pointIndex(0)]; + ctx.moveTo(point.x, point.y); + } + for (i = 0; i <= ilen; ++i) { + point = points[pointIndex(i)]; + if (point.skip) { + continue; + } + const x = point.x; + const y = point.y; + const truncX = x | 0; + if (truncX === prevX) { + if (y < minY) { + minY = y; + } else if (y > maxY) { + maxY = y; + } + avgX = (countX * avgX + x) / ++countX; + } else { + drawX(); + ctx.lineTo(x, y); + prevX = truncX; + countX = 0; + minY = maxY = y; + } + lastY = y; + } + drawX(); +} +function _getSegmentMethod(line) { + const opts = line.options; + const borderDash = opts.borderDash && opts.borderDash.length; + const useFastPath = !line._decimated && !line._loop && !opts.tension && opts.cubicInterpolationMode !== 'monotone' && !opts.stepped && !borderDash; + return useFastPath ? fastPathSegment : pathSegment; +} +function _getInterpolationMethod(options) { + if (options.stepped) { + return _steppedInterpolation; + } + if (options.tension || options.cubicInterpolationMode === 'monotone') { + return _bezierInterpolation; + } + return _pointInLine; +} +function strokePathWithCache(ctx, line, start, count) { + let path = line._path; + if (!path) { + path = line._path = new Path2D(); + if (line.path(path, start, count)) { + path.closePath(); + } + } + setStyle(ctx, line.options); + ctx.stroke(path); +} +function strokePathDirect(ctx, line, start, count) { + const {segments, options} = line; + const segmentMethod = _getSegmentMethod(line); + for (const segment of segments) { + setStyle(ctx, options, segment.style); + ctx.beginPath(); + if (segmentMethod(ctx, line, segment, {start, end: start + count - 1})) { + ctx.closePath(); + } + ctx.stroke(); + } +} +const usePath2D = typeof Path2D === 'function'; +function draw(ctx, line, start, count) { + if (usePath2D && !line.options.segment) { + strokePathWithCache(ctx, line, start, count); + } else { + strokePathDirect(ctx, line, start, count); + } +} +class LineElement extends Element { + constructor(cfg) { + super(); + this.animated = true; + this.options = undefined; + this._chart = undefined; + this._loop = undefined; + this._fullLoop = undefined; + this._path = undefined; + this._points = undefined; + this._segments = undefined; + this._decimated = false; + this._pointsUpdated = false; + this._datasetIndex = undefined; + if (cfg) { + Object.assign(this, cfg); + } + } + updateControlPoints(chartArea, indexAxis) { + const options = this.options; + if ((options.tension || options.cubicInterpolationMode === 'monotone') && !options.stepped && !this._pointsUpdated) { + const loop = options.spanGaps ? this._loop : this._fullLoop; + _updateBezierControlPoints(this._points, options, chartArea, loop, indexAxis); + this._pointsUpdated = true; + } + } + set points(points) { + this._points = points; + delete this._segments; + delete this._path; + this._pointsUpdated = false; + } + get points() { + return this._points; + } + get segments() { + return this._segments || (this._segments = _computeSegments(this, this.options.segment)); + } + first() { + const segments = this.segments; + const points = this.points; + return segments.length && points[segments[0].start]; + } + last() { + const segments = this.segments; + const points = this.points; + const count = segments.length; + return count && points[segments[count - 1].end]; + } + interpolate(point, property) { + const options = this.options; + const value = point[property]; + const points = this.points; + const segments = _boundSegments(this, {property, start: value, end: value}); + if (!segments.length) { + return; + } + const result = []; + const _interpolate = _getInterpolationMethod(options); + let i, ilen; + for (i = 0, ilen = segments.length; i < ilen; ++i) { + const {start, end} = segments[i]; + const p1 = points[start]; + const p2 = points[end]; + if (p1 === p2) { + result.push(p1); + continue; + } + const t = Math.abs((value - p1[property]) / (p2[property] - p1[property])); + const interpolated = _interpolate(p1, p2, t, options.stepped); + interpolated[property] = point[property]; + result.push(interpolated); + } + return result.length === 1 ? result[0] : result; + } + pathSegment(ctx, segment, params) { + const segmentMethod = _getSegmentMethod(this); + return segmentMethod(ctx, this, segment, params); + } + path(ctx, start, count) { + const segments = this.segments; + const segmentMethod = _getSegmentMethod(this); + let loop = this._loop; + start = start || 0; + count = count || (this.points.length - start); + for (const segment of segments) { + loop &= segmentMethod(ctx, this, segment, {start, end: start + count - 1}); + } + return !!loop; + } + draw(ctx, chartArea, start, count) { + const options = this.options || {}; + const points = this.points || []; + if (points.length && options.borderWidth) { + ctx.save(); + draw(ctx, this, start, count); + ctx.restore(); + } + if (this.animated) { + this._pointsUpdated = false; + this._path = undefined; + } + } +} +LineElement.id = 'line'; +LineElement.defaults = { + borderCapStyle: 'butt', + borderDash: [], + borderDashOffset: 0, + borderJoinStyle: 'miter', + borderWidth: 3, + capBezierPoints: true, + cubicInterpolationMode: 'default', + fill: false, + spanGaps: false, + stepped: false, + tension: 0, +}; +LineElement.defaultRoutes = { + backgroundColor: 'backgroundColor', + borderColor: 'borderColor' +}; +LineElement.descriptors = { + _scriptable: true, + _indexable: (name) => name !== 'borderDash' && name !== 'fill', +}; + +function inRange$1(el, pos, axis, useFinalPosition) { + const options = el.options; + const {[axis]: value} = el.getProps([axis], useFinalPosition); + return (Math.abs(pos - value) < options.radius + options.hitRadius); +} +class PointElement extends Element { + constructor(cfg) { + super(); + this.options = undefined; + this.parsed = undefined; + this.skip = undefined; + this.stop = undefined; + if (cfg) { + Object.assign(this, cfg); + } + } + inRange(mouseX, mouseY, useFinalPosition) { + const options = this.options; + const {x, y} = this.getProps(['x', 'y'], useFinalPosition); + return ((Math.pow(mouseX - x, 2) + Math.pow(mouseY - y, 2)) < Math.pow(options.hitRadius + options.radius, 2)); + } + inXRange(mouseX, useFinalPosition) { + return inRange$1(this, mouseX, 'x', useFinalPosition); + } + inYRange(mouseY, useFinalPosition) { + return inRange$1(this, mouseY, 'y', useFinalPosition); + } + getCenterPoint(useFinalPosition) { + const {x, y} = this.getProps(['x', 'y'], useFinalPosition); + return {x, y}; + } + size(options) { + options = options || this.options || {}; + let radius = options.radius || 0; + radius = Math.max(radius, radius && options.hoverRadius || 0); + const borderWidth = radius && options.borderWidth || 0; + return (radius + borderWidth) * 2; + } + draw(ctx, area) { + const options = this.options; + if (this.skip || options.radius < 0.1 || !_isPointInArea(this, area, this.size(options) / 2)) { + return; + } + ctx.strokeStyle = options.borderColor; + ctx.lineWidth = options.borderWidth; + ctx.fillStyle = options.backgroundColor; + drawPoint(ctx, options, this.x, this.y); + } + getRange() { + const options = this.options || {}; + return options.radius + options.hitRadius; + } +} +PointElement.id = 'point'; +PointElement.defaults = { + borderWidth: 1, + hitRadius: 1, + hoverBorderWidth: 1, + hoverRadius: 4, + pointStyle: 'circle', + radius: 3, + rotation: 0 +}; +PointElement.defaultRoutes = { + backgroundColor: 'backgroundColor', + borderColor: 'borderColor' +}; + +function getBarBounds(bar, useFinalPosition) { + const {x, y, base, width, height} = bar.getProps(['x', 'y', 'base', 'width', 'height'], useFinalPosition); + let left, right, top, bottom, half; + if (bar.horizontal) { + half = height / 2; + left = Math.min(x, base); + right = Math.max(x, base); + top = y - half; + bottom = y + half; + } else { + half = width / 2; + left = x - half; + right = x + half; + top = Math.min(y, base); + bottom = Math.max(y, base); + } + return {left, top, right, bottom}; +} +function skipOrLimit(skip, value, min, max) { + return skip ? 0 : _limitValue(value, min, max); +} +function parseBorderWidth(bar, maxW, maxH) { + const value = bar.options.borderWidth; + const skip = bar.borderSkipped; + const o = toTRBL(value); + return { + t: skipOrLimit(skip.top, o.top, 0, maxH), + r: skipOrLimit(skip.right, o.right, 0, maxW), + b: skipOrLimit(skip.bottom, o.bottom, 0, maxH), + l: skipOrLimit(skip.left, o.left, 0, maxW) + }; +} +function parseBorderRadius(bar, maxW, maxH) { + const {enableBorderRadius} = bar.getProps(['enableBorderRadius']); + const value = bar.options.borderRadius; + const o = toTRBLCorners(value); + const maxR = Math.min(maxW, maxH); + const skip = bar.borderSkipped; + const enableBorder = enableBorderRadius || isObject(value); + return { + topLeft: skipOrLimit(!enableBorder || skip.top || skip.left, o.topLeft, 0, maxR), + topRight: skipOrLimit(!enableBorder || skip.top || skip.right, o.topRight, 0, maxR), + bottomLeft: skipOrLimit(!enableBorder || skip.bottom || skip.left, o.bottomLeft, 0, maxR), + bottomRight: skipOrLimit(!enableBorder || skip.bottom || skip.right, o.bottomRight, 0, maxR) + }; +} +function boundingRects(bar) { + const bounds = getBarBounds(bar); + const width = bounds.right - bounds.left; + const height = bounds.bottom - bounds.top; + const border = parseBorderWidth(bar, width / 2, height / 2); + const radius = parseBorderRadius(bar, width / 2, height / 2); + return { + outer: { + x: bounds.left, + y: bounds.top, + w: width, + h: height, + radius + }, + inner: { + x: bounds.left + border.l, + y: bounds.top + border.t, + w: width - border.l - border.r, + h: height - border.t - border.b, + radius: { + topLeft: Math.max(0, radius.topLeft - Math.max(border.t, border.l)), + topRight: Math.max(0, radius.topRight - Math.max(border.t, border.r)), + bottomLeft: Math.max(0, radius.bottomLeft - Math.max(border.b, border.l)), + bottomRight: Math.max(0, radius.bottomRight - Math.max(border.b, border.r)), + } + } + }; +} +function inRange(bar, x, y, useFinalPosition) { + const skipX = x === null; + const skipY = y === null; + const skipBoth = skipX && skipY; + const bounds = bar && !skipBoth && getBarBounds(bar, useFinalPosition); + return bounds + && (skipX || _isBetween(x, bounds.left, bounds.right)) + && (skipY || _isBetween(y, bounds.top, bounds.bottom)); +} +function hasRadius(radius) { + return radius.topLeft || radius.topRight || radius.bottomLeft || radius.bottomRight; +} +function addNormalRectPath(ctx, rect) { + ctx.rect(rect.x, rect.y, rect.w, rect.h); +} +function inflateRect(rect, amount, refRect = {}) { + const x = rect.x !== refRect.x ? -amount : 0; + const y = rect.y !== refRect.y ? -amount : 0; + const w = (rect.x + rect.w !== refRect.x + refRect.w ? amount : 0) - x; + const h = (rect.y + rect.h !== refRect.y + refRect.h ? amount : 0) - y; + return { + x: rect.x + x, + y: rect.y + y, + w: rect.w + w, + h: rect.h + h, + radius: rect.radius + }; +} +class BarElement extends Element { + constructor(cfg) { + super(); + this.options = undefined; + this.horizontal = undefined; + this.base = undefined; + this.width = undefined; + this.height = undefined; + this.inflateAmount = undefined; + if (cfg) { + Object.assign(this, cfg); + } + } + draw(ctx) { + const {inflateAmount, options: {borderColor, backgroundColor}} = this; + const {inner, outer} = boundingRects(this); + const addRectPath = hasRadius(outer.radius) ? addRoundedRectPath : addNormalRectPath; + ctx.save(); + if (outer.w !== inner.w || outer.h !== inner.h) { + ctx.beginPath(); + addRectPath(ctx, inflateRect(outer, inflateAmount, inner)); + ctx.clip(); + addRectPath(ctx, inflateRect(inner, -inflateAmount, outer)); + ctx.fillStyle = borderColor; + ctx.fill('evenodd'); + } + ctx.beginPath(); + addRectPath(ctx, inflateRect(inner, inflateAmount)); + ctx.fillStyle = backgroundColor; + ctx.fill(); + ctx.restore(); + } + inRange(mouseX, mouseY, useFinalPosition) { + return inRange(this, mouseX, mouseY, useFinalPosition); + } + inXRange(mouseX, useFinalPosition) { + return inRange(this, mouseX, null, useFinalPosition); + } + inYRange(mouseY, useFinalPosition) { + return inRange(this, null, mouseY, useFinalPosition); + } + getCenterPoint(useFinalPosition) { + const {x, y, base, horizontal} = this.getProps(['x', 'y', 'base', 'horizontal'], useFinalPosition); + return { + x: horizontal ? (x + base) / 2 : x, + y: horizontal ? y : (y + base) / 2 + }; + } + getRange(axis) { + return axis === 'x' ? this.width / 2 : this.height / 2; + } +} +BarElement.id = 'bar'; +BarElement.defaults = { + borderSkipped: 'start', + borderWidth: 0, + borderRadius: 0, + inflateAmount: 'auto', + pointStyle: undefined +}; +BarElement.defaultRoutes = { + backgroundColor: 'backgroundColor', + borderColor: 'borderColor' +}; + +var elements = /*#__PURE__*/Object.freeze({ +__proto__: null, +ArcElement: ArcElement, +LineElement: LineElement, +PointElement: PointElement, +BarElement: BarElement +}); + +function lttbDecimation(data, start, count, availableWidth, options) { + const samples = options.samples || availableWidth; + if (samples >= count) { + return data.slice(start, start + count); + } + const decimated = []; + const bucketWidth = (count - 2) / (samples - 2); + let sampledIndex = 0; + const endIndex = start + count - 1; + let a = start; + let i, maxAreaPoint, maxArea, area, nextA; + decimated[sampledIndex++] = data[a]; + for (i = 0; i < samples - 2; i++) { + let avgX = 0; + let avgY = 0; + let j; + const avgRangeStart = Math.floor((i + 1) * bucketWidth) + 1 + start; + const avgRangeEnd = Math.min(Math.floor((i + 2) * bucketWidth) + 1, count) + start; + const avgRangeLength = avgRangeEnd - avgRangeStart; + for (j = avgRangeStart; j < avgRangeEnd; j++) { + avgX += data[j].x; + avgY += data[j].y; + } + avgX /= avgRangeLength; + avgY /= avgRangeLength; + const rangeOffs = Math.floor(i * bucketWidth) + 1 + start; + const rangeTo = Math.min(Math.floor((i + 1) * bucketWidth) + 1, count) + start; + const {x: pointAx, y: pointAy} = data[a]; + maxArea = area = -1; + for (j = rangeOffs; j < rangeTo; j++) { + area = 0.5 * Math.abs( + (pointAx - avgX) * (data[j].y - pointAy) - + (pointAx - data[j].x) * (avgY - pointAy) + ); + if (area > maxArea) { + maxArea = area; + maxAreaPoint = data[j]; + nextA = j; + } + } + decimated[sampledIndex++] = maxAreaPoint; + a = nextA; + } + decimated[sampledIndex++] = data[endIndex]; + return decimated; +} +function minMaxDecimation(data, start, count, availableWidth) { + let avgX = 0; + let countX = 0; + let i, point, x, y, prevX, minIndex, maxIndex, startIndex, minY, maxY; + const decimated = []; + const endIndex = start + count - 1; + const xMin = data[start].x; + const xMax = data[endIndex].x; + const dx = xMax - xMin; + for (i = start; i < start + count; ++i) { + point = data[i]; + x = (point.x - xMin) / dx * availableWidth; + y = point.y; + const truncX = x | 0; + if (truncX === prevX) { + if (y < minY) { + minY = y; + minIndex = i; + } else if (y > maxY) { + maxY = y; + maxIndex = i; + } + avgX = (countX * avgX + point.x) / ++countX; + } else { + const lastIndex = i - 1; + if (!isNullOrUndef(minIndex) && !isNullOrUndef(maxIndex)) { + const intermediateIndex1 = Math.min(minIndex, maxIndex); + const intermediateIndex2 = Math.max(minIndex, maxIndex); + if (intermediateIndex1 !== startIndex && intermediateIndex1 !== lastIndex) { + decimated.push({ + ...data[intermediateIndex1], + x: avgX, + }); + } + if (intermediateIndex2 !== startIndex && intermediateIndex2 !== lastIndex) { + decimated.push({ + ...data[intermediateIndex2], + x: avgX + }); + } + } + if (i > 0 && lastIndex !== startIndex) { + decimated.push(data[lastIndex]); + } + decimated.push(point); + prevX = truncX; + countX = 0; + minY = maxY = y; + minIndex = maxIndex = startIndex = i; + } + } + return decimated; +} +function cleanDecimatedDataset(dataset) { + if (dataset._decimated) { + const data = dataset._data; + delete dataset._decimated; + delete dataset._data; + Object.defineProperty(dataset, 'data', {value: data}); + } +} +function cleanDecimatedData(chart) { + chart.data.datasets.forEach((dataset) => { + cleanDecimatedDataset(dataset); + }); +} +function getStartAndCountOfVisiblePointsSimplified(meta, points) { + const pointCount = points.length; + let start = 0; + let count; + const {iScale} = meta; + const {min, max, minDefined, maxDefined} = iScale.getUserBounds(); + if (minDefined) { + start = _limitValue(_lookupByKey(points, iScale.axis, min).lo, 0, pointCount - 1); + } + if (maxDefined) { + count = _limitValue(_lookupByKey(points, iScale.axis, max).hi + 1, start, pointCount) - start; + } else { + count = pointCount - start; + } + return {start, count}; +} +var plugin_decimation = { + id: 'decimation', + defaults: { + algorithm: 'min-max', + enabled: false, + }, + beforeElementsUpdate: (chart, args, options) => { + if (!options.enabled) { + cleanDecimatedData(chart); + return; + } + const availableWidth = chart.width; + chart.data.datasets.forEach((dataset, datasetIndex) => { + const {_data, indexAxis} = dataset; + const meta = chart.getDatasetMeta(datasetIndex); + const data = _data || dataset.data; + if (resolve([indexAxis, chart.options.indexAxis]) === 'y') { + return; + } + if (meta.type !== 'line') { + return; + } + const xAxis = chart.scales[meta.xAxisID]; + if (xAxis.type !== 'linear' && xAxis.type !== 'time') { + return; + } + if (chart.options.parsing) { + return; + } + let {start, count} = getStartAndCountOfVisiblePointsSimplified(meta, data); + const threshold = options.threshold || 4 * availableWidth; + if (count <= threshold) { + cleanDecimatedDataset(dataset); + return; + } + if (isNullOrUndef(_data)) { + dataset._data = data; + delete dataset.data; + Object.defineProperty(dataset, 'data', { + configurable: true, + enumerable: true, + get: function() { + return this._decimated; + }, + set: function(d) { + this._data = d; + } + }); + } + let decimated; + switch (options.algorithm) { + case 'lttb': + decimated = lttbDecimation(data, start, count, availableWidth, options); + break; + case 'min-max': + decimated = minMaxDecimation(data, start, count, availableWidth); + break; + default: + throw new Error(`Unsupported decimation algorithm '${options.algorithm}'`); + } + dataset._decimated = decimated; + }); + }, + destroy(chart) { + cleanDecimatedData(chart); + } +}; + +function getLineByIndex(chart, index) { + const meta = chart.getDatasetMeta(index); + const visible = meta && chart.isDatasetVisible(index); + return visible ? meta.dataset : null; +} +function parseFillOption(line) { + const options = line.options; + const fillOption = options.fill; + let fill = valueOrDefault(fillOption && fillOption.target, fillOption); + if (fill === undefined) { + fill = !!options.backgroundColor; + } + if (fill === false || fill === null) { + return false; + } + if (fill === true) { + return 'origin'; + } + return fill; +} +function decodeFill(line, index, count) { + const fill = parseFillOption(line); + if (isObject(fill)) { + return isNaN(fill.value) ? false : fill; + } + let target = parseFloat(fill); + if (isNumberFinite(target) && Math.floor(target) === target) { + if (fill[0] === '-' || fill[0] === '+') { + target = index + target; + } + if (target === index || target < 0 || target >= count) { + return false; + } + return target; + } + return ['origin', 'start', 'end', 'stack', 'shape'].indexOf(fill) >= 0 && fill; +} +function computeLinearBoundary(source) { + const {scale = {}, fill} = source; + let target = null; + let horizontal; + if (fill === 'start') { + target = scale.bottom; + } else if (fill === 'end') { + target = scale.top; + } else if (isObject(fill)) { + target = scale.getPixelForValue(fill.value); + } else if (scale.getBasePixel) { + target = scale.getBasePixel(); + } + if (isNumberFinite(target)) { + horizontal = scale.isHorizontal(); + return { + x: horizontal ? target : null, + y: horizontal ? null : target + }; + } + return null; +} +class simpleArc { + constructor(opts) { + this.x = opts.x; + this.y = opts.y; + this.radius = opts.radius; + } + pathSegment(ctx, bounds, opts) { + const {x, y, radius} = this; + bounds = bounds || {start: 0, end: TAU}; + ctx.arc(x, y, radius, bounds.end, bounds.start, true); + return !opts.bounds; + } + interpolate(point) { + const {x, y, radius} = this; + const angle = point.angle; + return { + x: x + Math.cos(angle) * radius, + y: y + Math.sin(angle) * radius, + angle + }; + } +} +function computeCircularBoundary(source) { + const {scale, fill} = source; + const options = scale.options; + const length = scale.getLabels().length; + const target = []; + const start = options.reverse ? scale.max : scale.min; + const end = options.reverse ? scale.min : scale.max; + let i, center, value; + if (fill === 'start') { + value = start; + } else if (fill === 'end') { + value = end; + } else if (isObject(fill)) { + value = fill.value; + } else { + value = scale.getBaseValue(); + } + if (options.grid.circular) { + center = scale.getPointPositionForValue(0, start); + return new simpleArc({ + x: center.x, + y: center.y, + radius: scale.getDistanceFromCenterForValue(value) + }); + } + for (i = 0; i < length; ++i) { + target.push(scale.getPointPositionForValue(i, value)); + } + return target; +} +function computeBoundary(source) { + const scale = source.scale || {}; + if (scale.getPointPositionForValue) { + return computeCircularBoundary(source); + } + return computeLinearBoundary(source); +} +function findSegmentEnd(start, end, points) { + for (;end > start; end--) { + const point = points[end]; + if (!isNaN(point.x) && !isNaN(point.y)) { + break; + } + } + return end; +} +function pointsFromSegments(boundary, line) { + const {x = null, y = null} = boundary || {}; + const linePoints = line.points; + const points = []; + line.segments.forEach(({start, end}) => { + end = findSegmentEnd(start, end, linePoints); + const first = linePoints[start]; + const last = linePoints[end]; + if (y !== null) { + points.push({x: first.x, y}); + points.push({x: last.x, y}); + } else if (x !== null) { + points.push({x, y: first.y}); + points.push({x, y: last.y}); + } + }); + return points; +} +function buildStackLine(source) { + const {scale, index, line} = source; + const points = []; + const segments = line.segments; + const sourcePoints = line.points; + const linesBelow = getLinesBelow(scale, index); + linesBelow.push(createBoundaryLine({x: null, y: scale.bottom}, line)); + for (let i = 0; i < segments.length; i++) { + const segment = segments[i]; + for (let j = segment.start; j <= segment.end; j++) { + addPointsBelow(points, sourcePoints[j], linesBelow); + } + } + return new LineElement({points, options: {}}); +} +function getLinesBelow(scale, index) { + const below = []; + const metas = scale.getMatchingVisibleMetas('line'); + for (let i = 0; i < metas.length; i++) { + const meta = metas[i]; + if (meta.index === index) { + break; + } + if (!meta.hidden) { + below.unshift(meta.dataset); + } + } + return below; +} +function addPointsBelow(points, sourcePoint, linesBelow) { + const postponed = []; + for (let j = 0; j < linesBelow.length; j++) { + const line = linesBelow[j]; + const {first, last, point} = findPoint(line, sourcePoint, 'x'); + if (!point || (first && last)) { + continue; + } + if (first) { + postponed.unshift(point); + } else { + points.push(point); + if (!last) { + break; + } + } + } + points.push(...postponed); +} +function findPoint(line, sourcePoint, property) { + const point = line.interpolate(sourcePoint, property); + if (!point) { + return {}; + } + const pointValue = point[property]; + const segments = line.segments; + const linePoints = line.points; + let first = false; + let last = false; + for (let i = 0; i < segments.length; i++) { + const segment = segments[i]; + const firstValue = linePoints[segment.start][property]; + const lastValue = linePoints[segment.end][property]; + if (_isBetween(pointValue, firstValue, lastValue)) { + first = pointValue === firstValue; + last = pointValue === lastValue; + break; + } + } + return {first, last, point}; +} +function getTarget(source) { + const {chart, fill, line} = source; + if (isNumberFinite(fill)) { + return getLineByIndex(chart, fill); + } + if (fill === 'stack') { + return buildStackLine(source); + } + if (fill === 'shape') { + return true; + } + const boundary = computeBoundary(source); + if (boundary instanceof simpleArc) { + return boundary; + } + return createBoundaryLine(boundary, line); +} +function createBoundaryLine(boundary, line) { + let points = []; + let _loop = false; + if (isArray(boundary)) { + _loop = true; + points = boundary; + } else { + points = pointsFromSegments(boundary, line); + } + return points.length ? new LineElement({ + points, + options: {tension: 0}, + _loop, + _fullLoop: _loop + }) : null; +} +function resolveTarget(sources, index, propagate) { + const source = sources[index]; + let fill = source.fill; + const visited = [index]; + let target; + if (!propagate) { + return fill; + } + while (fill !== false && visited.indexOf(fill) === -1) { + if (!isNumberFinite(fill)) { + return fill; + } + target = sources[fill]; + if (!target) { + return false; + } + if (target.visible) { + return fill; + } + visited.push(fill); + fill = target.fill; + } + return false; +} +function _clip(ctx, target, clipY) { + ctx.beginPath(); + target.path(ctx); + ctx.lineTo(target.last().x, clipY); + ctx.lineTo(target.first().x, clipY); + ctx.closePath(); + ctx.clip(); +} +function getBounds(property, first, last, loop) { + if (loop) { + return; + } + let start = first[property]; + let end = last[property]; + if (property === 'angle') { + start = _normalizeAngle(start); + end = _normalizeAngle(end); + } + return {property, start, end}; +} +function _getEdge(a, b, prop, fn) { + if (a && b) { + return fn(a[prop], b[prop]); + } + return a ? a[prop] : b ? b[prop] : 0; +} +function _segments(line, target, property) { + const segments = line.segments; + const points = line.points; + const tpoints = target.points; + const parts = []; + for (const segment of segments) { + let {start, end} = segment; + end = findSegmentEnd(start, end, points); + const bounds = getBounds(property, points[start], points[end], segment.loop); + if (!target.segments) { + parts.push({ + source: segment, + target: bounds, + start: points[start], + end: points[end] + }); + continue; + } + const targetSegments = _boundSegments(target, bounds); + for (const tgt of targetSegments) { + const subBounds = getBounds(property, tpoints[tgt.start], tpoints[tgt.end], tgt.loop); + const fillSources = _boundSegment(segment, points, subBounds); + for (const fillSource of fillSources) { + parts.push({ + source: fillSource, + target: tgt, + start: { + [property]: _getEdge(bounds, subBounds, 'start', Math.max) + }, + end: { + [property]: _getEdge(bounds, subBounds, 'end', Math.min) + } + }); + } + } + } + return parts; +} +function clipBounds(ctx, scale, bounds) { + const {top, bottom} = scale.chart.chartArea; + const {property, start, end} = bounds || {}; + if (property === 'x') { + ctx.beginPath(); + ctx.rect(start, top, end - start, bottom - top); + ctx.clip(); + } +} +function interpolatedLineTo(ctx, target, point, property) { + const interpolatedPoint = target.interpolate(point, property); + if (interpolatedPoint) { + ctx.lineTo(interpolatedPoint.x, interpolatedPoint.y); + } +} +function _fill(ctx, cfg) { + const {line, target, property, color, scale} = cfg; + const segments = _segments(line, target, property); + for (const {source: src, target: tgt, start, end} of segments) { + const {style: {backgroundColor = color} = {}} = src; + const notShape = target !== true; + ctx.save(); + ctx.fillStyle = backgroundColor; + clipBounds(ctx, scale, notShape && getBounds(property, start, end)); + ctx.beginPath(); + const lineLoop = !!line.pathSegment(ctx, src); + let loop; + if (notShape) { + if (lineLoop) { + ctx.closePath(); + } else { + interpolatedLineTo(ctx, target, end, property); + } + const targetLoop = !!target.pathSegment(ctx, tgt, {move: lineLoop, reverse: true}); + loop = lineLoop && targetLoop; + if (!loop) { + interpolatedLineTo(ctx, target, start, property); + } + } + ctx.closePath(); + ctx.fill(loop ? 'evenodd' : 'nonzero'); + ctx.restore(); + } +} +function doFill(ctx, cfg) { + const {line, target, above, below, area, scale} = cfg; + const property = line._loop ? 'angle' : cfg.axis; + ctx.save(); + if (property === 'x' && below !== above) { + _clip(ctx, target, area.top); + _fill(ctx, {line, target, color: above, scale, property}); + ctx.restore(); + ctx.save(); + _clip(ctx, target, area.bottom); + } + _fill(ctx, {line, target, color: below, scale, property}); + ctx.restore(); +} +function drawfill(ctx, source, area) { + const target = getTarget(source); + const {line, scale, axis} = source; + const lineOpts = line.options; + const fillOption = lineOpts.fill; + const color = lineOpts.backgroundColor; + const {above = color, below = color} = fillOption || {}; + if (target && line.points.length) { + clipArea(ctx, area); + doFill(ctx, {line, target, above, below, area, scale, axis}); + unclipArea(ctx); + } +} +var plugin_filler = { + id: 'filler', + afterDatasetsUpdate(chart, _args, options) { + const count = (chart.data.datasets || []).length; + const sources = []; + let meta, i, line, source; + for (i = 0; i < count; ++i) { + meta = chart.getDatasetMeta(i); + line = meta.dataset; + source = null; + if (line && line.options && line instanceof LineElement) { + source = { + visible: chart.isDatasetVisible(i), + index: i, + fill: decodeFill(line, i, count), + chart, + axis: meta.controller.options.indexAxis, + scale: meta.vScale, + line, + }; + } + meta.$filler = source; + sources.push(source); + } + for (i = 0; i < count; ++i) { + source = sources[i]; + if (!source || source.fill === false) { + continue; + } + source.fill = resolveTarget(sources, i, options.propagate); + } + }, + beforeDraw(chart, _args, options) { + const draw = options.drawTime === 'beforeDraw'; + const metasets = chart.getSortedVisibleDatasetMetas(); + const area = chart.chartArea; + for (let i = metasets.length - 1; i >= 0; --i) { + const source = metasets[i].$filler; + if (!source) { + continue; + } + source.line.updateControlPoints(area, source.axis); + if (draw) { + drawfill(chart.ctx, source, area); + } + } + }, + beforeDatasetsDraw(chart, _args, options) { + if (options.drawTime !== 'beforeDatasetsDraw') { + return; + } + const metasets = chart.getSortedVisibleDatasetMetas(); + for (let i = metasets.length - 1; i >= 0; --i) { + const source = metasets[i].$filler; + if (source) { + drawfill(chart.ctx, source, chart.chartArea); + } + } + }, + beforeDatasetDraw(chart, args, options) { + const source = args.meta.$filler; + if (!source || source.fill === false || options.drawTime !== 'beforeDatasetDraw') { + return; + } + drawfill(chart.ctx, source, chart.chartArea); + }, + defaults: { + propagate: true, + drawTime: 'beforeDatasetDraw' + } +}; + +const getBoxSize = (labelOpts, fontSize) => { + let {boxHeight = fontSize, boxWidth = fontSize} = labelOpts; + if (labelOpts.usePointStyle) { + boxHeight = Math.min(boxHeight, fontSize); + boxWidth = Math.min(boxWidth, fontSize); + } + return { + boxWidth, + boxHeight, + itemHeight: Math.max(fontSize, boxHeight) + }; +}; +const itemsEqual = (a, b) => a !== null && b !== null && a.datasetIndex === b.datasetIndex && a.index === b.index; +class Legend extends Element { + constructor(config) { + super(); + this._added = false; + this.legendHitBoxes = []; + this._hoveredItem = null; + this.doughnutMode = false; + this.chart = config.chart; + this.options = config.options; + this.ctx = config.ctx; + this.legendItems = undefined; + this.columnSizes = undefined; + this.lineWidths = undefined; + this.maxHeight = undefined; + this.maxWidth = undefined; + this.top = undefined; + this.bottom = undefined; + this.left = undefined; + this.right = undefined; + this.height = undefined; + this.width = undefined; + this._margins = undefined; + this.position = undefined; + this.weight = undefined; + this.fullSize = undefined; + } + update(maxWidth, maxHeight, margins) { + this.maxWidth = maxWidth; + this.maxHeight = maxHeight; + this._margins = margins; + this.setDimensions(); + this.buildLabels(); + this.fit(); + } + setDimensions() { + if (this.isHorizontal()) { + this.width = this.maxWidth; + this.left = this._margins.left; + this.right = this.width; + } else { + this.height = this.maxHeight; + this.top = this._margins.top; + this.bottom = this.height; + } + } + buildLabels() { + const labelOpts = this.options.labels || {}; + let legendItems = callback(labelOpts.generateLabels, [this.chart], this) || []; + if (labelOpts.filter) { + legendItems = legendItems.filter((item) => labelOpts.filter(item, this.chart.data)); + } + if (labelOpts.sort) { + legendItems = legendItems.sort((a, b) => labelOpts.sort(a, b, this.chart.data)); + } + if (this.options.reverse) { + legendItems.reverse(); + } + this.legendItems = legendItems; + } + fit() { + const {options, ctx} = this; + if (!options.display) { + this.width = this.height = 0; + return; + } + const labelOpts = options.labels; + const labelFont = toFont(labelOpts.font); + const fontSize = labelFont.size; + const titleHeight = this._computeTitleHeight(); + const {boxWidth, itemHeight} = getBoxSize(labelOpts, fontSize); + let width, height; + ctx.font = labelFont.string; + if (this.isHorizontal()) { + width = this.maxWidth; + height = this._fitRows(titleHeight, fontSize, boxWidth, itemHeight) + 10; + } else { + height = this.maxHeight; + width = this._fitCols(titleHeight, fontSize, boxWidth, itemHeight) + 10; + } + this.width = Math.min(width, options.maxWidth || this.maxWidth); + this.height = Math.min(height, options.maxHeight || this.maxHeight); + } + _fitRows(titleHeight, fontSize, boxWidth, itemHeight) { + const {ctx, maxWidth, options: {labels: {padding}}} = this; + const hitboxes = this.legendHitBoxes = []; + const lineWidths = this.lineWidths = [0]; + const lineHeight = itemHeight + padding; + let totalHeight = titleHeight; + ctx.textAlign = 'left'; + ctx.textBaseline = 'middle'; + let row = -1; + let top = -lineHeight; + this.legendItems.forEach((legendItem, i) => { + const itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width; + if (i === 0 || lineWidths[lineWidths.length - 1] + itemWidth + 2 * padding > maxWidth) { + totalHeight += lineHeight; + lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = 0; + top += lineHeight; + row++; + } + hitboxes[i] = {left: 0, top, row, width: itemWidth, height: itemHeight}; + lineWidths[lineWidths.length - 1] += itemWidth + padding; + }); + return totalHeight; + } + _fitCols(titleHeight, fontSize, boxWidth, itemHeight) { + const {ctx, maxHeight, options: {labels: {padding}}} = this; + const hitboxes = this.legendHitBoxes = []; + const columnSizes = this.columnSizes = []; + const heightLimit = maxHeight - titleHeight; + let totalWidth = padding; + let currentColWidth = 0; + let currentColHeight = 0; + let left = 0; + let col = 0; + this.legendItems.forEach((legendItem, i) => { + const itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width; + if (i > 0 && currentColHeight + itemHeight + 2 * padding > heightLimit) { + totalWidth += currentColWidth + padding; + columnSizes.push({width: currentColWidth, height: currentColHeight}); + left += currentColWidth + padding; + col++; + currentColWidth = currentColHeight = 0; + } + hitboxes[i] = {left, top: currentColHeight, col, width: itemWidth, height: itemHeight}; + currentColWidth = Math.max(currentColWidth, itemWidth); + currentColHeight += itemHeight + padding; + }); + totalWidth += currentColWidth; + columnSizes.push({width: currentColWidth, height: currentColHeight}); + return totalWidth; + } + adjustHitBoxes() { + if (!this.options.display) { + return; + } + const titleHeight = this._computeTitleHeight(); + const {legendHitBoxes: hitboxes, options: {align, labels: {padding}, rtl}} = this; + const rtlHelper = getRtlAdapter(rtl, this.left, this.width); + if (this.isHorizontal()) { + let row = 0; + let left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]); + for (const hitbox of hitboxes) { + if (row !== hitbox.row) { + row = hitbox.row; + left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]); + } + hitbox.top += this.top + titleHeight + padding; + hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(left), hitbox.width); + left += hitbox.width + padding; + } + } else { + let col = 0; + let top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height); + for (const hitbox of hitboxes) { + if (hitbox.col !== col) { + col = hitbox.col; + top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height); + } + hitbox.top = top; + hitbox.left += this.left + padding; + hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(hitbox.left), hitbox.width); + top += hitbox.height + padding; + } + } + } + isHorizontal() { + return this.options.position === 'top' || this.options.position === 'bottom'; + } + draw() { + if (this.options.display) { + const ctx = this.ctx; + clipArea(ctx, this); + this._draw(); + unclipArea(ctx); + } + } + _draw() { + const {options: opts, columnSizes, lineWidths, ctx} = this; + const {align, labels: labelOpts} = opts; + const defaultColor = defaults.color; + const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width); + const labelFont = toFont(labelOpts.font); + const {color: fontColor, padding} = labelOpts; + const fontSize = labelFont.size; + const halfFontSize = fontSize / 2; + let cursor; + this.drawTitle(); + ctx.textAlign = rtlHelper.textAlign('left'); + ctx.textBaseline = 'middle'; + ctx.lineWidth = 0.5; + ctx.font = labelFont.string; + const {boxWidth, boxHeight, itemHeight} = getBoxSize(labelOpts, fontSize); + const drawLegendBox = function(x, y, legendItem) { + if (isNaN(boxWidth) || boxWidth <= 0 || isNaN(boxHeight) || boxHeight < 0) { + return; + } + ctx.save(); + const lineWidth = valueOrDefault(legendItem.lineWidth, 1); + ctx.fillStyle = valueOrDefault(legendItem.fillStyle, defaultColor); + ctx.lineCap = valueOrDefault(legendItem.lineCap, 'butt'); + ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, 0); + ctx.lineJoin = valueOrDefault(legendItem.lineJoin, 'miter'); + ctx.lineWidth = lineWidth; + ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, defaultColor); + ctx.setLineDash(valueOrDefault(legendItem.lineDash, [])); + if (labelOpts.usePointStyle) { + const drawOptions = { + radius: boxWidth * Math.SQRT2 / 2, + pointStyle: legendItem.pointStyle, + rotation: legendItem.rotation, + borderWidth: lineWidth + }; + const centerX = rtlHelper.xPlus(x, boxWidth / 2); + const centerY = y + halfFontSize; + drawPoint(ctx, drawOptions, centerX, centerY); + } else { + const yBoxTop = y + Math.max((fontSize - boxHeight) / 2, 0); + const xBoxLeft = rtlHelper.leftForLtr(x, boxWidth); + const borderRadius = toTRBLCorners(legendItem.borderRadius); + ctx.beginPath(); + if (Object.values(borderRadius).some(v => v !== 0)) { + addRoundedRectPath(ctx, { + x: xBoxLeft, + y: yBoxTop, + w: boxWidth, + h: boxHeight, + radius: borderRadius, + }); + } else { + ctx.rect(xBoxLeft, yBoxTop, boxWidth, boxHeight); + } + ctx.fill(); + if (lineWidth !== 0) { + ctx.stroke(); + } + } + ctx.restore(); + }; + const fillText = function(x, y, legendItem) { + renderText(ctx, legendItem.text, x, y + (itemHeight / 2), labelFont, { + strikethrough: legendItem.hidden, + textAlign: rtlHelper.textAlign(legendItem.textAlign) + }); + }; + const isHorizontal = this.isHorizontal(); + const titleHeight = this._computeTitleHeight(); + if (isHorizontal) { + cursor = { + x: _alignStartEnd(align, this.left + padding, this.right - lineWidths[0]), + y: this.top + padding + titleHeight, + line: 0 + }; + } else { + cursor = { + x: this.left + padding, + y: _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[0].height), + line: 0 + }; + } + overrideTextDirection(this.ctx, opts.textDirection); + const lineHeight = itemHeight + padding; + this.legendItems.forEach((legendItem, i) => { + ctx.strokeStyle = legendItem.fontColor || fontColor; + ctx.fillStyle = legendItem.fontColor || fontColor; + const textWidth = ctx.measureText(legendItem.text).width; + const textAlign = rtlHelper.textAlign(legendItem.textAlign || (legendItem.textAlign = labelOpts.textAlign)); + const width = boxWidth + halfFontSize + textWidth; + let x = cursor.x; + let y = cursor.y; + rtlHelper.setWidth(this.width); + if (isHorizontal) { + if (i > 0 && x + width + padding > this.right) { + y = cursor.y += lineHeight; + cursor.line++; + x = cursor.x = _alignStartEnd(align, this.left + padding, this.right - lineWidths[cursor.line]); + } + } else if (i > 0 && y + lineHeight > this.bottom) { + x = cursor.x = x + columnSizes[cursor.line].width + padding; + cursor.line++; + y = cursor.y = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[cursor.line].height); + } + const realX = rtlHelper.x(x); + drawLegendBox(realX, y, legendItem); + x = _textX(textAlign, x + boxWidth + halfFontSize, isHorizontal ? x + width : this.right, opts.rtl); + fillText(rtlHelper.x(x), y, legendItem); + if (isHorizontal) { + cursor.x += width + padding; + } else { + cursor.y += lineHeight; + } + }); + restoreTextDirection(this.ctx, opts.textDirection); + } + drawTitle() { + const opts = this.options; + const titleOpts = opts.title; + const titleFont = toFont(titleOpts.font); + const titlePadding = toPadding(titleOpts.padding); + if (!titleOpts.display) { + return; + } + const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width); + const ctx = this.ctx; + const position = titleOpts.position; + const halfFontSize = titleFont.size / 2; + const topPaddingPlusHalfFontSize = titlePadding.top + halfFontSize; + let y; + let left = this.left; + let maxWidth = this.width; + if (this.isHorizontal()) { + maxWidth = Math.max(...this.lineWidths); + y = this.top + topPaddingPlusHalfFontSize; + left = _alignStartEnd(opts.align, left, this.right - maxWidth); + } else { + const maxHeight = this.columnSizes.reduce((acc, size) => Math.max(acc, size.height), 0); + y = topPaddingPlusHalfFontSize + _alignStartEnd(opts.align, this.top, this.bottom - maxHeight - opts.labels.padding - this._computeTitleHeight()); + } + const x = _alignStartEnd(position, left, left + maxWidth); + ctx.textAlign = rtlHelper.textAlign(_toLeftRightCenter(position)); + ctx.textBaseline = 'middle'; + ctx.strokeStyle = titleOpts.color; + ctx.fillStyle = titleOpts.color; + ctx.font = titleFont.string; + renderText(ctx, titleOpts.text, x, y, titleFont); + } + _computeTitleHeight() { + const titleOpts = this.options.title; + const titleFont = toFont(titleOpts.font); + const titlePadding = toPadding(titleOpts.padding); + return titleOpts.display ? titleFont.lineHeight + titlePadding.height : 0; + } + _getLegendItemAt(x, y) { + let i, hitBox, lh; + if (_isBetween(x, this.left, this.right) + && _isBetween(y, this.top, this.bottom)) { + lh = this.legendHitBoxes; + for (i = 0; i < lh.length; ++i) { + hitBox = lh[i]; + if (_isBetween(x, hitBox.left, hitBox.left + hitBox.width) + && _isBetween(y, hitBox.top, hitBox.top + hitBox.height)) { + return this.legendItems[i]; + } + } + } + return null; + } + handleEvent(e) { + const opts = this.options; + if (!isListened(e.type, opts)) { + return; + } + const hoveredItem = this._getLegendItemAt(e.x, e.y); + if (e.type === 'mousemove') { + const previous = this._hoveredItem; + const sameItem = itemsEqual(previous, hoveredItem); + if (previous && !sameItem) { + callback(opts.onLeave, [e, previous, this], this); + } + this._hoveredItem = hoveredItem; + if (hoveredItem && !sameItem) { + callback(opts.onHover, [e, hoveredItem, this], this); + } + } else if (hoveredItem) { + callback(opts.onClick, [e, hoveredItem, this], this); + } + } +} +function isListened(type, opts) { + if (type === 'mousemove' && (opts.onHover || opts.onLeave)) { + return true; + } + if (opts.onClick && (type === 'click' || type === 'mouseup')) { + return true; + } + return false; +} +var plugin_legend = { + id: 'legend', + _element: Legend, + start(chart, _args, options) { + const legend = chart.legend = new Legend({ctx: chart.ctx, options, chart}); + layouts.configure(chart, legend, options); + layouts.addBox(chart, legend); + }, + stop(chart) { + layouts.removeBox(chart, chart.legend); + delete chart.legend; + }, + beforeUpdate(chart, _args, options) { + const legend = chart.legend; + layouts.configure(chart, legend, options); + legend.options = options; + }, + afterUpdate(chart) { + const legend = chart.legend; + legend.buildLabels(); + legend.adjustHitBoxes(); + }, + afterEvent(chart, args) { + if (!args.replay) { + chart.legend.handleEvent(args.event); + } + }, + defaults: { + display: true, + position: 'top', + align: 'center', + fullSize: true, + reverse: false, + weight: 1000, + onClick(e, legendItem, legend) { + const index = legendItem.datasetIndex; + const ci = legend.chart; + if (ci.isDatasetVisible(index)) { + ci.hide(index); + legendItem.hidden = true; + } else { + ci.show(index); + legendItem.hidden = false; + } + }, + onHover: null, + onLeave: null, + labels: { + color: (ctx) => ctx.chart.options.color, + boxWidth: 40, + padding: 10, + generateLabels(chart) { + const datasets = chart.data.datasets; + const {labels: {usePointStyle, pointStyle, textAlign, color}} = chart.legend.options; + return chart._getSortedDatasetMetas().map((meta) => { + const style = meta.controller.getStyle(usePointStyle ? 0 : undefined); + const borderWidth = toPadding(style.borderWidth); + return { + text: datasets[meta.index].label, + fillStyle: style.backgroundColor, + fontColor: color, + hidden: !meta.visible, + lineCap: style.borderCapStyle, + lineDash: style.borderDash, + lineDashOffset: style.borderDashOffset, + lineJoin: style.borderJoinStyle, + lineWidth: (borderWidth.width + borderWidth.height) / 4, + strokeStyle: style.borderColor, + pointStyle: pointStyle || style.pointStyle, + rotation: style.rotation, + textAlign: textAlign || style.textAlign, + borderRadius: 0, + datasetIndex: meta.index + }; + }, this); + } + }, + title: { + color: (ctx) => ctx.chart.options.color, + display: false, + position: 'center', + text: '', + } + }, + descriptors: { + _scriptable: (name) => !name.startsWith('on'), + labels: { + _scriptable: (name) => !['generateLabels', 'filter', 'sort'].includes(name), + } + }, +}; + +class Title extends Element { + constructor(config) { + super(); + this.chart = config.chart; + this.options = config.options; + this.ctx = config.ctx; + this._padding = undefined; + this.top = undefined; + this.bottom = undefined; + this.left = undefined; + this.right = undefined; + this.width = undefined; + this.height = undefined; + this.position = undefined; + this.weight = undefined; + this.fullSize = undefined; + } + update(maxWidth, maxHeight) { + const opts = this.options; + this.left = 0; + this.top = 0; + if (!opts.display) { + this.width = this.height = this.right = this.bottom = 0; + return; + } + this.width = this.right = maxWidth; + this.height = this.bottom = maxHeight; + const lineCount = isArray(opts.text) ? opts.text.length : 1; + this._padding = toPadding(opts.padding); + const textSize = lineCount * toFont(opts.font).lineHeight + this._padding.height; + if (this.isHorizontal()) { + this.height = textSize; + } else { + this.width = textSize; + } + } + isHorizontal() { + const pos = this.options.position; + return pos === 'top' || pos === 'bottom'; + } + _drawArgs(offset) { + const {top, left, bottom, right, options} = this; + const align = options.align; + let rotation = 0; + let maxWidth, titleX, titleY; + if (this.isHorizontal()) { + titleX = _alignStartEnd(align, left, right); + titleY = top + offset; + maxWidth = right - left; + } else { + if (options.position === 'left') { + titleX = left + offset; + titleY = _alignStartEnd(align, bottom, top); + rotation = PI * -0.5; + } else { + titleX = right - offset; + titleY = _alignStartEnd(align, top, bottom); + rotation = PI * 0.5; + } + maxWidth = bottom - top; + } + return {titleX, titleY, maxWidth, rotation}; + } + draw() { + const ctx = this.ctx; + const opts = this.options; + if (!opts.display) { + return; + } + const fontOpts = toFont(opts.font); + const lineHeight = fontOpts.lineHeight; + const offset = lineHeight / 2 + this._padding.top; + const {titleX, titleY, maxWidth, rotation} = this._drawArgs(offset); + renderText(ctx, opts.text, 0, 0, fontOpts, { + color: opts.color, + maxWidth, + rotation, + textAlign: _toLeftRightCenter(opts.align), + textBaseline: 'middle', + translation: [titleX, titleY], + }); + } +} +function createTitle(chart, titleOpts) { + const title = new Title({ + ctx: chart.ctx, + options: titleOpts, + chart + }); + layouts.configure(chart, title, titleOpts); + layouts.addBox(chart, title); + chart.titleBlock = title; +} +var plugin_title = { + id: 'title', + _element: Title, + start(chart, _args, options) { + createTitle(chart, options); + }, + stop(chart) { + const titleBlock = chart.titleBlock; + layouts.removeBox(chart, titleBlock); + delete chart.titleBlock; + }, + beforeUpdate(chart, _args, options) { + const title = chart.titleBlock; + layouts.configure(chart, title, options); + title.options = options; + }, + defaults: { + align: 'center', + display: false, + font: { + weight: 'bold', + }, + fullSize: true, + padding: 10, + position: 'top', + text: '', + weight: 2000 + }, + defaultRoutes: { + color: 'color' + }, + descriptors: { + _scriptable: true, + _indexable: false, + }, +}; + +const map = new WeakMap(); +var plugin_subtitle = { + id: 'subtitle', + start(chart, _args, options) { + const title = new Title({ + ctx: chart.ctx, + options, + chart + }); + layouts.configure(chart, title, options); + layouts.addBox(chart, title); + map.set(chart, title); + }, + stop(chart) { + layouts.removeBox(chart, map.get(chart)); + map.delete(chart); + }, + beforeUpdate(chart, _args, options) { + const title = map.get(chart); + layouts.configure(chart, title, options); + title.options = options; + }, + defaults: { + align: 'center', + display: false, + font: { + weight: 'normal', + }, + fullSize: true, + padding: 0, + position: 'top', + text: '', + weight: 1500 + }, + defaultRoutes: { + color: 'color' + }, + descriptors: { + _scriptable: true, + _indexable: false, + }, +}; + +const positioners = { + average(items) { + if (!items.length) { + return false; + } + let i, len; + let x = 0; + let y = 0; + let count = 0; + for (i = 0, len = items.length; i < len; ++i) { + const el = items[i].element; + if (el && el.hasValue()) { + const pos = el.tooltipPosition(); + x += pos.x; + y += pos.y; + ++count; + } + } + return { + x: x / count, + y: y / count + }; + }, + nearest(items, eventPosition) { + if (!items.length) { + return false; + } + let x = eventPosition.x; + let y = eventPosition.y; + let minDistance = Number.POSITIVE_INFINITY; + let i, len, nearestElement; + for (i = 0, len = items.length; i < len; ++i) { + const el = items[i].element; + if (el && el.hasValue()) { + const center = el.getCenterPoint(); + const d = distanceBetweenPoints(eventPosition, center); + if (d < minDistance) { + minDistance = d; + nearestElement = el; + } + } + } + if (nearestElement) { + const tp = nearestElement.tooltipPosition(); + x = tp.x; + y = tp.y; + } + return { + x, + y + }; + } +}; +function pushOrConcat(base, toPush) { + if (toPush) { + if (isArray(toPush)) { + Array.prototype.push.apply(base, toPush); + } else { + base.push(toPush); + } + } + return base; +} +function splitNewlines(str) { + if ((typeof str === 'string' || str instanceof String) && str.indexOf('\n') > -1) { + return str.split('\n'); + } + return str; +} +function createTooltipItem(chart, item) { + const {element, datasetIndex, index} = item; + const controller = chart.getDatasetMeta(datasetIndex).controller; + const {label, value} = controller.getLabelAndValue(index); + return { + chart, + label, + parsed: controller.getParsed(index), + raw: chart.data.datasets[datasetIndex].data[index], + formattedValue: value, + dataset: controller.getDataset(), + dataIndex: index, + datasetIndex, + element + }; +} +function getTooltipSize(tooltip, options) { + const ctx = tooltip.chart.ctx; + const {body, footer, title} = tooltip; + const {boxWidth, boxHeight} = options; + const bodyFont = toFont(options.bodyFont); + const titleFont = toFont(options.titleFont); + const footerFont = toFont(options.footerFont); + const titleLineCount = title.length; + const footerLineCount = footer.length; + const bodyLineItemCount = body.length; + const padding = toPadding(options.padding); + let height = padding.height; + let width = 0; + let combinedBodyLength = body.reduce((count, bodyItem) => count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length, 0); + combinedBodyLength += tooltip.beforeBody.length + tooltip.afterBody.length; + if (titleLineCount) { + height += titleLineCount * titleFont.lineHeight + + (titleLineCount - 1) * options.titleSpacing + + options.titleMarginBottom; + } + if (combinedBodyLength) { + const bodyLineHeight = options.displayColors ? Math.max(boxHeight, bodyFont.lineHeight) : bodyFont.lineHeight; + height += bodyLineItemCount * bodyLineHeight + + (combinedBodyLength - bodyLineItemCount) * bodyFont.lineHeight + + (combinedBodyLength - 1) * options.bodySpacing; + } + if (footerLineCount) { + height += options.footerMarginTop + + footerLineCount * footerFont.lineHeight + + (footerLineCount - 1) * options.footerSpacing; + } + let widthPadding = 0; + const maxLineWidth = function(line) { + width = Math.max(width, ctx.measureText(line).width + widthPadding); + }; + ctx.save(); + ctx.font = titleFont.string; + each(tooltip.title, maxLineWidth); + ctx.font = bodyFont.string; + each(tooltip.beforeBody.concat(tooltip.afterBody), maxLineWidth); + widthPadding = options.displayColors ? (boxWidth + 2 + options.boxPadding) : 0; + each(body, (bodyItem) => { + each(bodyItem.before, maxLineWidth); + each(bodyItem.lines, maxLineWidth); + each(bodyItem.after, maxLineWidth); + }); + widthPadding = 0; + ctx.font = footerFont.string; + each(tooltip.footer, maxLineWidth); + ctx.restore(); + width += padding.width; + return {width, height}; +} +function determineYAlign(chart, size) { + const {y, height} = size; + if (y < height / 2) { + return 'top'; + } else if (y > (chart.height - height / 2)) { + return 'bottom'; + } + return 'center'; +} +function doesNotFitWithAlign(xAlign, chart, options, size) { + const {x, width} = size; + const caret = options.caretSize + options.caretPadding; + if (xAlign === 'left' && x + width + caret > chart.width) { + return true; + } + if (xAlign === 'right' && x - width - caret < 0) { + return true; + } +} +function determineXAlign(chart, options, size, yAlign) { + const {x, width} = size; + const {width: chartWidth, chartArea: {left, right}} = chart; + let xAlign = 'center'; + if (yAlign === 'center') { + xAlign = x <= (left + right) / 2 ? 'left' : 'right'; + } else if (x <= width / 2) { + xAlign = 'left'; + } else if (x >= chartWidth - width / 2) { + xAlign = 'right'; + } + if (doesNotFitWithAlign(xAlign, chart, options, size)) { + xAlign = 'center'; + } + return xAlign; +} +function determineAlignment(chart, options, size) { + const yAlign = size.yAlign || options.yAlign || determineYAlign(chart, size); + return { + xAlign: size.xAlign || options.xAlign || determineXAlign(chart, options, size, yAlign), + yAlign + }; +} +function alignX(size, xAlign) { + let {x, width} = size; + if (xAlign === 'right') { + x -= width; + } else if (xAlign === 'center') { + x -= (width / 2); + } + return x; +} +function alignY(size, yAlign, paddingAndSize) { + let {y, height} = size; + if (yAlign === 'top') { + y += paddingAndSize; + } else if (yAlign === 'bottom') { + y -= height + paddingAndSize; + } else { + y -= (height / 2); + } + return y; +} +function getBackgroundPoint(options, size, alignment, chart) { + const {caretSize, caretPadding, cornerRadius} = options; + const {xAlign, yAlign} = alignment; + const paddingAndSize = caretSize + caretPadding; + const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(cornerRadius); + let x = alignX(size, xAlign); + const y = alignY(size, yAlign, paddingAndSize); + if (yAlign === 'center') { + if (xAlign === 'left') { + x += paddingAndSize; + } else if (xAlign === 'right') { + x -= paddingAndSize; + } + } else if (xAlign === 'left') { + x -= Math.max(topLeft, bottomLeft) + caretSize; + } else if (xAlign === 'right') { + x += Math.max(topRight, bottomRight) + caretSize; + } + return { + x: _limitValue(x, 0, chart.width - size.width), + y: _limitValue(y, 0, chart.height - size.height) + }; +} +function getAlignedX(tooltip, align, options) { + const padding = toPadding(options.padding); + return align === 'center' + ? tooltip.x + tooltip.width / 2 + : align === 'right' + ? tooltip.x + tooltip.width - padding.right + : tooltip.x + padding.left; +} +function getBeforeAfterBodyLines(callback) { + return pushOrConcat([], splitNewlines(callback)); +} +function createTooltipContext(parent, tooltip, tooltipItems) { + return createContext(parent, { + tooltip, + tooltipItems, + type: 'tooltip' + }); +} +function overrideCallbacks(callbacks, context) { + const override = context && context.dataset && context.dataset.tooltip && context.dataset.tooltip.callbacks; + return override ? callbacks.override(override) : callbacks; +} +class Tooltip extends Element { + constructor(config) { + super(); + this.opacity = 0; + this._active = []; + this._eventPosition = undefined; + this._size = undefined; + this._cachedAnimations = undefined; + this._tooltipItems = []; + this.$animations = undefined; + this.$context = undefined; + this.chart = config.chart || config._chart; + this._chart = this.chart; + this.options = config.options; + this.dataPoints = undefined; + this.title = undefined; + this.beforeBody = undefined; + this.body = undefined; + this.afterBody = undefined; + this.footer = undefined; + this.xAlign = undefined; + this.yAlign = undefined; + this.x = undefined; + this.y = undefined; + this.height = undefined; + this.width = undefined; + this.caretX = undefined; + this.caretY = undefined; + this.labelColors = undefined; + this.labelPointStyles = undefined; + this.labelTextColors = undefined; + } + initialize(options) { + this.options = options; + this._cachedAnimations = undefined; + this.$context = undefined; + } + _resolveAnimations() { + const cached = this._cachedAnimations; + if (cached) { + return cached; + } + const chart = this.chart; + const options = this.options.setContext(this.getContext()); + const opts = options.enabled && chart.options.animation && options.animations; + const animations = new Animations(this.chart, opts); + if (opts._cacheable) { + this._cachedAnimations = Object.freeze(animations); + } + return animations; + } + getContext() { + return this.$context || + (this.$context = createTooltipContext(this.chart.getContext(), this, this._tooltipItems)); + } + getTitle(context, options) { + const {callbacks} = options; + const beforeTitle = callbacks.beforeTitle.apply(this, [context]); + const title = callbacks.title.apply(this, [context]); + const afterTitle = callbacks.afterTitle.apply(this, [context]); + let lines = []; + lines = pushOrConcat(lines, splitNewlines(beforeTitle)); + lines = pushOrConcat(lines, splitNewlines(title)); + lines = pushOrConcat(lines, splitNewlines(afterTitle)); + return lines; + } + getBeforeBody(tooltipItems, options) { + return getBeforeAfterBodyLines(options.callbacks.beforeBody.apply(this, [tooltipItems])); + } + getBody(tooltipItems, options) { + const {callbacks} = options; + const bodyItems = []; + each(tooltipItems, (context) => { + const bodyItem = { + before: [], + lines: [], + after: [] + }; + const scoped = overrideCallbacks(callbacks, context); + pushOrConcat(bodyItem.before, splitNewlines(scoped.beforeLabel.call(this, context))); + pushOrConcat(bodyItem.lines, scoped.label.call(this, context)); + pushOrConcat(bodyItem.after, splitNewlines(scoped.afterLabel.call(this, context))); + bodyItems.push(bodyItem); + }); + return bodyItems; + } + getAfterBody(tooltipItems, options) { + return getBeforeAfterBodyLines(options.callbacks.afterBody.apply(this, [tooltipItems])); + } + getFooter(tooltipItems, options) { + const {callbacks} = options; + const beforeFooter = callbacks.beforeFooter.apply(this, [tooltipItems]); + const footer = callbacks.footer.apply(this, [tooltipItems]); + const afterFooter = callbacks.afterFooter.apply(this, [tooltipItems]); + let lines = []; + lines = pushOrConcat(lines, splitNewlines(beforeFooter)); + lines = pushOrConcat(lines, splitNewlines(footer)); + lines = pushOrConcat(lines, splitNewlines(afterFooter)); + return lines; + } + _createItems(options) { + const active = this._active; + const data = this.chart.data; + const labelColors = []; + const labelPointStyles = []; + const labelTextColors = []; + let tooltipItems = []; + let i, len; + for (i = 0, len = active.length; i < len; ++i) { + tooltipItems.push(createTooltipItem(this.chart, active[i])); + } + if (options.filter) { + tooltipItems = tooltipItems.filter((element, index, array) => options.filter(element, index, array, data)); + } + if (options.itemSort) { + tooltipItems = tooltipItems.sort((a, b) => options.itemSort(a, b, data)); + } + each(tooltipItems, (context) => { + const scoped = overrideCallbacks(options.callbacks, context); + labelColors.push(scoped.labelColor.call(this, context)); + labelPointStyles.push(scoped.labelPointStyle.call(this, context)); + labelTextColors.push(scoped.labelTextColor.call(this, context)); + }); + this.labelColors = labelColors; + this.labelPointStyles = labelPointStyles; + this.labelTextColors = labelTextColors; + this.dataPoints = tooltipItems; + return tooltipItems; + } + update(changed, replay) { + const options = this.options.setContext(this.getContext()); + const active = this._active; + let properties; + let tooltipItems = []; + if (!active.length) { + if (this.opacity !== 0) { + properties = { + opacity: 0 + }; + } + } else { + const position = positioners[options.position].call(this, active, this._eventPosition); + tooltipItems = this._createItems(options); + this.title = this.getTitle(tooltipItems, options); + this.beforeBody = this.getBeforeBody(tooltipItems, options); + this.body = this.getBody(tooltipItems, options); + this.afterBody = this.getAfterBody(tooltipItems, options); + this.footer = this.getFooter(tooltipItems, options); + const size = this._size = getTooltipSize(this, options); + const positionAndSize = Object.assign({}, position, size); + const alignment = determineAlignment(this.chart, options, positionAndSize); + const backgroundPoint = getBackgroundPoint(options, positionAndSize, alignment, this.chart); + this.xAlign = alignment.xAlign; + this.yAlign = alignment.yAlign; + properties = { + opacity: 1, + x: backgroundPoint.x, + y: backgroundPoint.y, + width: size.width, + height: size.height, + caretX: position.x, + caretY: position.y + }; + } + this._tooltipItems = tooltipItems; + this.$context = undefined; + if (properties) { + this._resolveAnimations().update(this, properties); + } + if (changed && options.external) { + options.external.call(this, {chart: this.chart, tooltip: this, replay}); + } + } + drawCaret(tooltipPoint, ctx, size, options) { + const caretPosition = this.getCaretPosition(tooltipPoint, size, options); + ctx.lineTo(caretPosition.x1, caretPosition.y1); + ctx.lineTo(caretPosition.x2, caretPosition.y2); + ctx.lineTo(caretPosition.x3, caretPosition.y3); + } + getCaretPosition(tooltipPoint, size, options) { + const {xAlign, yAlign} = this; + const {caretSize, cornerRadius} = options; + const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(cornerRadius); + const {x: ptX, y: ptY} = tooltipPoint; + const {width, height} = size; + let x1, x2, x3, y1, y2, y3; + if (yAlign === 'center') { + y2 = ptY + (height / 2); + if (xAlign === 'left') { + x1 = ptX; + x2 = x1 - caretSize; + y1 = y2 + caretSize; + y3 = y2 - caretSize; + } else { + x1 = ptX + width; + x2 = x1 + caretSize; + y1 = y2 - caretSize; + y3 = y2 + caretSize; + } + x3 = x1; + } else { + if (xAlign === 'left') { + x2 = ptX + Math.max(topLeft, bottomLeft) + (caretSize); + } else if (xAlign === 'right') { + x2 = ptX + width - Math.max(topRight, bottomRight) - caretSize; + } else { + x2 = this.caretX; + } + if (yAlign === 'top') { + y1 = ptY; + y2 = y1 - caretSize; + x1 = x2 - caretSize; + x3 = x2 + caretSize; + } else { + y1 = ptY + height; + y2 = y1 + caretSize; + x1 = x2 + caretSize; + x3 = x2 - caretSize; + } + y3 = y1; + } + return {x1, x2, x3, y1, y2, y3}; + } + drawTitle(pt, ctx, options) { + const title = this.title; + const length = title.length; + let titleFont, titleSpacing, i; + if (length) { + const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); + pt.x = getAlignedX(this, options.titleAlign, options); + ctx.textAlign = rtlHelper.textAlign(options.titleAlign); + ctx.textBaseline = 'middle'; + titleFont = toFont(options.titleFont); + titleSpacing = options.titleSpacing; + ctx.fillStyle = options.titleColor; + ctx.font = titleFont.string; + for (i = 0; i < length; ++i) { + ctx.fillText(title[i], rtlHelper.x(pt.x), pt.y + titleFont.lineHeight / 2); + pt.y += titleFont.lineHeight + titleSpacing; + if (i + 1 === length) { + pt.y += options.titleMarginBottom - titleSpacing; + } + } + } + } + _drawColorBox(ctx, pt, i, rtlHelper, options) { + const labelColors = this.labelColors[i]; + const labelPointStyle = this.labelPointStyles[i]; + const {boxHeight, boxWidth, boxPadding} = options; + const bodyFont = toFont(options.bodyFont); + const colorX = getAlignedX(this, 'left', options); + const rtlColorX = rtlHelper.x(colorX); + const yOffSet = boxHeight < bodyFont.lineHeight ? (bodyFont.lineHeight - boxHeight) / 2 : 0; + const colorY = pt.y + yOffSet; + if (options.usePointStyle) { + const drawOptions = { + radius: Math.min(boxWidth, boxHeight) / 2, + pointStyle: labelPointStyle.pointStyle, + rotation: labelPointStyle.rotation, + borderWidth: 1 + }; + const centerX = rtlHelper.leftForLtr(rtlColorX, boxWidth) + boxWidth / 2; + const centerY = colorY + boxHeight / 2; + ctx.strokeStyle = options.multiKeyBackground; + ctx.fillStyle = options.multiKeyBackground; + drawPoint(ctx, drawOptions, centerX, centerY); + ctx.strokeStyle = labelColors.borderColor; + ctx.fillStyle = labelColors.backgroundColor; + drawPoint(ctx, drawOptions, centerX, centerY); + } else { + ctx.lineWidth = labelColors.borderWidth || 1; + ctx.strokeStyle = labelColors.borderColor; + ctx.setLineDash(labelColors.borderDash || []); + ctx.lineDashOffset = labelColors.borderDashOffset || 0; + const outerX = rtlHelper.leftForLtr(rtlColorX, boxWidth - boxPadding); + const innerX = rtlHelper.leftForLtr(rtlHelper.xPlus(rtlColorX, 1), boxWidth - boxPadding - 2); + const borderRadius = toTRBLCorners(labelColors.borderRadius); + if (Object.values(borderRadius).some(v => v !== 0)) { + ctx.beginPath(); + ctx.fillStyle = options.multiKeyBackground; + addRoundedRectPath(ctx, { + x: outerX, + y: colorY, + w: boxWidth, + h: boxHeight, + radius: borderRadius, + }); + ctx.fill(); + ctx.stroke(); + ctx.fillStyle = labelColors.backgroundColor; + ctx.beginPath(); + addRoundedRectPath(ctx, { + x: innerX, + y: colorY + 1, + w: boxWidth - 2, + h: boxHeight - 2, + radius: borderRadius, + }); + ctx.fill(); + } else { + ctx.fillStyle = options.multiKeyBackground; + ctx.fillRect(outerX, colorY, boxWidth, boxHeight); + ctx.strokeRect(outerX, colorY, boxWidth, boxHeight); + ctx.fillStyle = labelColors.backgroundColor; + ctx.fillRect(innerX, colorY + 1, boxWidth - 2, boxHeight - 2); + } + } + ctx.fillStyle = this.labelTextColors[i]; + } + drawBody(pt, ctx, options) { + const {body} = this; + const {bodySpacing, bodyAlign, displayColors, boxHeight, boxWidth, boxPadding} = options; + const bodyFont = toFont(options.bodyFont); + let bodyLineHeight = bodyFont.lineHeight; + let xLinePadding = 0; + const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); + const fillLineOfText = function(line) { + ctx.fillText(line, rtlHelper.x(pt.x + xLinePadding), pt.y + bodyLineHeight / 2); + pt.y += bodyLineHeight + bodySpacing; + }; + const bodyAlignForCalculation = rtlHelper.textAlign(bodyAlign); + let bodyItem, textColor, lines, i, j, ilen, jlen; + ctx.textAlign = bodyAlign; + ctx.textBaseline = 'middle'; + ctx.font = bodyFont.string; + pt.x = getAlignedX(this, bodyAlignForCalculation, options); + ctx.fillStyle = options.bodyColor; + each(this.beforeBody, fillLineOfText); + xLinePadding = displayColors && bodyAlignForCalculation !== 'right' + ? bodyAlign === 'center' ? (boxWidth / 2 + boxPadding) : (boxWidth + 2 + boxPadding) + : 0; + for (i = 0, ilen = body.length; i < ilen; ++i) { + bodyItem = body[i]; + textColor = this.labelTextColors[i]; + ctx.fillStyle = textColor; + each(bodyItem.before, fillLineOfText); + lines = bodyItem.lines; + if (displayColors && lines.length) { + this._drawColorBox(ctx, pt, i, rtlHelper, options); + bodyLineHeight = Math.max(bodyFont.lineHeight, boxHeight); + } + for (j = 0, jlen = lines.length; j < jlen; ++j) { + fillLineOfText(lines[j]); + bodyLineHeight = bodyFont.lineHeight; + } + each(bodyItem.after, fillLineOfText); + } + xLinePadding = 0; + bodyLineHeight = bodyFont.lineHeight; + each(this.afterBody, fillLineOfText); + pt.y -= bodySpacing; + } + drawFooter(pt, ctx, options) { + const footer = this.footer; + const length = footer.length; + let footerFont, i; + if (length) { + const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); + pt.x = getAlignedX(this, options.footerAlign, options); + pt.y += options.footerMarginTop; + ctx.textAlign = rtlHelper.textAlign(options.footerAlign); + ctx.textBaseline = 'middle'; + footerFont = toFont(options.footerFont); + ctx.fillStyle = options.footerColor; + ctx.font = footerFont.string; + for (i = 0; i < length; ++i) { + ctx.fillText(footer[i], rtlHelper.x(pt.x), pt.y + footerFont.lineHeight / 2); + pt.y += footerFont.lineHeight + options.footerSpacing; + } + } + } + drawBackground(pt, ctx, tooltipSize, options) { + const {xAlign, yAlign} = this; + const {x, y} = pt; + const {width, height} = tooltipSize; + const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(options.cornerRadius); + ctx.fillStyle = options.backgroundColor; + ctx.strokeStyle = options.borderColor; + ctx.lineWidth = options.borderWidth; + ctx.beginPath(); + ctx.moveTo(x + topLeft, y); + if (yAlign === 'top') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x + width - topRight, y); + ctx.quadraticCurveTo(x + width, y, x + width, y + topRight); + if (yAlign === 'center' && xAlign === 'right') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x + width, y + height - bottomRight); + ctx.quadraticCurveTo(x + width, y + height, x + width - bottomRight, y + height); + if (yAlign === 'bottom') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x + bottomLeft, y + height); + ctx.quadraticCurveTo(x, y + height, x, y + height - bottomLeft); + if (yAlign === 'center' && xAlign === 'left') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x, y + topLeft); + ctx.quadraticCurveTo(x, y, x + topLeft, y); + ctx.closePath(); + ctx.fill(); + if (options.borderWidth > 0) { + ctx.stroke(); + } + } + _updateAnimationTarget(options) { + const chart = this.chart; + const anims = this.$animations; + const animX = anims && anims.x; + const animY = anims && anims.y; + if (animX || animY) { + const position = positioners[options.position].call(this, this._active, this._eventPosition); + if (!position) { + return; + } + const size = this._size = getTooltipSize(this, options); + const positionAndSize = Object.assign({}, position, this._size); + const alignment = determineAlignment(chart, options, positionAndSize); + const point = getBackgroundPoint(options, positionAndSize, alignment, chart); + if (animX._to !== point.x || animY._to !== point.y) { + this.xAlign = alignment.xAlign; + this.yAlign = alignment.yAlign; + this.width = size.width; + this.height = size.height; + this.caretX = position.x; + this.caretY = position.y; + this._resolveAnimations().update(this, point); + } + } + } + draw(ctx) { + const options = this.options.setContext(this.getContext()); + let opacity = this.opacity; + if (!opacity) { + return; + } + this._updateAnimationTarget(options); + const tooltipSize = { + width: this.width, + height: this.height + }; + const pt = { + x: this.x, + y: this.y + }; + opacity = Math.abs(opacity) < 1e-3 ? 0 : opacity; + const padding = toPadding(options.padding); + const hasTooltipContent = this.title.length || this.beforeBody.length || this.body.length || this.afterBody.length || this.footer.length; + if (options.enabled && hasTooltipContent) { + ctx.save(); + ctx.globalAlpha = opacity; + this.drawBackground(pt, ctx, tooltipSize, options); + overrideTextDirection(ctx, options.textDirection); + pt.y += padding.top; + this.drawTitle(pt, ctx, options); + this.drawBody(pt, ctx, options); + this.drawFooter(pt, ctx, options); + restoreTextDirection(ctx, options.textDirection); + ctx.restore(); + } + } + getActiveElements() { + return this._active || []; + } + setActiveElements(activeElements, eventPosition) { + const lastActive = this._active; + const active = activeElements.map(({datasetIndex, index}) => { + const meta = this.chart.getDatasetMeta(datasetIndex); + if (!meta) { + throw new Error('Cannot find a dataset at index ' + datasetIndex); + } + return { + datasetIndex, + element: meta.data[index], + index, + }; + }); + const changed = !_elementsEqual(lastActive, active); + const positionChanged = this._positionChanged(active, eventPosition); + if (changed || positionChanged) { + this._active = active; + this._eventPosition = eventPosition; + this._ignoreReplayEvents = true; + this.update(true); + } + } + handleEvent(e, replay, inChartArea = true) { + if (replay && this._ignoreReplayEvents) { + return false; + } + this._ignoreReplayEvents = false; + const options = this.options; + const lastActive = this._active || []; + const active = this._getActiveElements(e, lastActive, replay, inChartArea); + const positionChanged = this._positionChanged(active, e); + const changed = replay || !_elementsEqual(active, lastActive) || positionChanged; + if (changed) { + this._active = active; + if (options.enabled || options.external) { + this._eventPosition = { + x: e.x, + y: e.y + }; + this.update(true, replay); + } + } + return changed; + } + _getActiveElements(e, lastActive, replay, inChartArea) { + const options = this.options; + if (e.type === 'mouseout') { + return []; + } + if (!inChartArea) { + return lastActive; + } + const active = this.chart.getElementsAtEventForMode(e, options.mode, options, replay); + if (options.reverse) { + active.reverse(); + } + return active; + } + _positionChanged(active, e) { + const {caretX, caretY, options} = this; + const position = positioners[options.position].call(this, active, e); + return position !== false && (caretX !== position.x || caretY !== position.y); + } +} +Tooltip.positioners = positioners; +var plugin_tooltip = { + id: 'tooltip', + _element: Tooltip, + positioners, + afterInit(chart, _args, options) { + if (options) { + chart.tooltip = new Tooltip({chart, options}); + } + }, + beforeUpdate(chart, _args, options) { + if (chart.tooltip) { + chart.tooltip.initialize(options); + } + }, + reset(chart, _args, options) { + if (chart.tooltip) { + chart.tooltip.initialize(options); + } + }, + afterDraw(chart) { + const tooltip = chart.tooltip; + const args = { + tooltip + }; + if (chart.notifyPlugins('beforeTooltipDraw', args) === false) { + return; + } + if (tooltip) { + tooltip.draw(chart.ctx); + } + chart.notifyPlugins('afterTooltipDraw', args); + }, + afterEvent(chart, args) { + if (chart.tooltip) { + const useFinalPosition = args.replay; + if (chart.tooltip.handleEvent(args.event, useFinalPosition, args.inChartArea)) { + args.changed = true; + } + } + }, + defaults: { + enabled: true, + external: null, + position: 'average', + backgroundColor: 'rgba(0,0,0,0.8)', + titleColor: '#fff', + titleFont: { + weight: 'bold', + }, + titleSpacing: 2, + titleMarginBottom: 6, + titleAlign: 'left', + bodyColor: '#fff', + bodySpacing: 2, + bodyFont: { + }, + bodyAlign: 'left', + footerColor: '#fff', + footerSpacing: 2, + footerMarginTop: 6, + footerFont: { + weight: 'bold', + }, + footerAlign: 'left', + padding: 6, + caretPadding: 2, + caretSize: 5, + cornerRadius: 6, + boxHeight: (ctx, opts) => opts.bodyFont.size, + boxWidth: (ctx, opts) => opts.bodyFont.size, + multiKeyBackground: '#fff', + displayColors: true, + boxPadding: 0, + borderColor: 'rgba(0,0,0,0)', + borderWidth: 0, + animation: { + duration: 400, + easing: 'easeOutQuart', + }, + animations: { + numbers: { + type: 'number', + properties: ['x', 'y', 'width', 'height', 'caretX', 'caretY'], + }, + opacity: { + easing: 'linear', + duration: 200 + } + }, + callbacks: { + beforeTitle: noop, + title(tooltipItems) { + if (tooltipItems.length > 0) { + const item = tooltipItems[0]; + const labels = item.chart.data.labels; + const labelCount = labels ? labels.length : 0; + if (this && this.options && this.options.mode === 'dataset') { + return item.dataset.label || ''; + } else if (item.label) { + return item.label; + } else if (labelCount > 0 && item.dataIndex < labelCount) { + return labels[item.dataIndex]; + } + } + return ''; + }, + afterTitle: noop, + beforeBody: noop, + beforeLabel: noop, + label(tooltipItem) { + if (this && this.options && this.options.mode === 'dataset') { + return tooltipItem.label + ': ' + tooltipItem.formattedValue || tooltipItem.formattedValue; + } + let label = tooltipItem.dataset.label || ''; + if (label) { + label += ': '; + } + const value = tooltipItem.formattedValue; + if (!isNullOrUndef(value)) { + label += value; + } + return label; + }, + labelColor(tooltipItem) { + const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex); + const options = meta.controller.getStyle(tooltipItem.dataIndex); + return { + borderColor: options.borderColor, + backgroundColor: options.backgroundColor, + borderWidth: options.borderWidth, + borderDash: options.borderDash, + borderDashOffset: options.borderDashOffset, + borderRadius: 0, + }; + }, + labelTextColor() { + return this.options.bodyColor; + }, + labelPointStyle(tooltipItem) { + const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex); + const options = meta.controller.getStyle(tooltipItem.dataIndex); + return { + pointStyle: options.pointStyle, + rotation: options.rotation, + }; + }, + afterLabel: noop, + afterBody: noop, + beforeFooter: noop, + footer: noop, + afterFooter: noop + } + }, + defaultRoutes: { + bodyFont: 'font', + footerFont: 'font', + titleFont: 'font' + }, + descriptors: { + _scriptable: (name) => name !== 'filter' && name !== 'itemSort' && name !== 'external', + _indexable: false, + callbacks: { + _scriptable: false, + _indexable: false, + }, + animation: { + _fallback: false + }, + animations: { + _fallback: 'animation' + } + }, + additionalOptionScopes: ['interaction'] +}; + +var plugins = /*#__PURE__*/Object.freeze({ +__proto__: null, +Decimation: plugin_decimation, +Filler: plugin_filler, +Legend: plugin_legend, +SubTitle: plugin_subtitle, +Title: plugin_title, +Tooltip: plugin_tooltip +}); + +const addIfString = (labels, raw, index, addedLabels) => { + if (typeof raw === 'string') { + index = labels.push(raw) - 1; + addedLabels.unshift({index, label: raw}); + } else if (isNaN(raw)) { + index = null; + } + return index; +}; +function findOrAddLabel(labels, raw, index, addedLabels) { + const first = labels.indexOf(raw); + if (first === -1) { + return addIfString(labels, raw, index, addedLabels); + } + const last = labels.lastIndexOf(raw); + return first !== last ? index : first; +} +const validIndex = (index, max) => index === null ? null : _limitValue(Math.round(index), 0, max); +class CategoryScale extends Scale { + constructor(cfg) { + super(cfg); + this._startValue = undefined; + this._valueRange = 0; + this._addedLabels = []; + } + init(scaleOptions) { + const added = this._addedLabels; + if (added.length) { + const labels = this.getLabels(); + for (const {index, label} of added) { + if (labels[index] === label) { + labels.splice(index, 1); + } + } + this._addedLabels = []; + } + super.init(scaleOptions); + } + parse(raw, index) { + if (isNullOrUndef(raw)) { + return null; + } + const labels = this.getLabels(); + index = isFinite(index) && labels[index] === raw ? index + : findOrAddLabel(labels, raw, valueOrDefault(index, raw), this._addedLabels); + return validIndex(index, labels.length - 1); + } + determineDataLimits() { + const {minDefined, maxDefined} = this.getUserBounds(); + let {min, max} = this.getMinMax(true); + if (this.options.bounds === 'ticks') { + if (!minDefined) { + min = 0; + } + if (!maxDefined) { + max = this.getLabels().length - 1; + } + } + this.min = min; + this.max = max; + } + buildTicks() { + const min = this.min; + const max = this.max; + const offset = this.options.offset; + const ticks = []; + let labels = this.getLabels(); + labels = (min === 0 && max === labels.length - 1) ? labels : labels.slice(min, max + 1); + this._valueRange = Math.max(labels.length - (offset ? 0 : 1), 1); + this._startValue = this.min - (offset ? 0.5 : 0); + for (let value = min; value <= max; value++) { + ticks.push({value}); + } + return ticks; + } + getLabelForValue(value) { + const labels = this.getLabels(); + if (value >= 0 && value < labels.length) { + return labels[value]; + } + return value; + } + configure() { + super.configure(); + if (!this.isHorizontal()) { + this._reversePixels = !this._reversePixels; + } + } + getPixelForValue(value) { + if (typeof value !== 'number') { + value = this.parse(value); + } + return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange); + } + getPixelForTick(index) { + const ticks = this.ticks; + if (index < 0 || index > ticks.length - 1) { + return null; + } + return this.getPixelForValue(ticks[index].value); + } + getValueForPixel(pixel) { + return Math.round(this._startValue + this.getDecimalForPixel(pixel) * this._valueRange); + } + getBasePixel() { + return this.bottom; + } +} +CategoryScale.id = 'category'; +CategoryScale.defaults = { + ticks: { + callback: CategoryScale.prototype.getLabelForValue + } +}; + +function generateTicks$1(generationOptions, dataRange) { + const ticks = []; + const MIN_SPACING = 1e-14; + const {bounds, step, min, max, precision, count, maxTicks, maxDigits, includeBounds} = generationOptions; + const unit = step || 1; + const maxSpaces = maxTicks - 1; + const {min: rmin, max: rmax} = dataRange; + const minDefined = !isNullOrUndef(min); + const maxDefined = !isNullOrUndef(max); + const countDefined = !isNullOrUndef(count); + const minSpacing = (rmax - rmin) / (maxDigits + 1); + let spacing = niceNum((rmax - rmin) / maxSpaces / unit) * unit; + let factor, niceMin, niceMax, numSpaces; + if (spacing < MIN_SPACING && !minDefined && !maxDefined) { + return [{value: rmin}, {value: rmax}]; + } + numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing); + if (numSpaces > maxSpaces) { + spacing = niceNum(numSpaces * spacing / maxSpaces / unit) * unit; + } + if (!isNullOrUndef(precision)) { + factor = Math.pow(10, precision); + spacing = Math.ceil(spacing * factor) / factor; + } + if (bounds === 'ticks') { + niceMin = Math.floor(rmin / spacing) * spacing; + niceMax = Math.ceil(rmax / spacing) * spacing; + } else { + niceMin = rmin; + niceMax = rmax; + } + if (minDefined && maxDefined && step && almostWhole((max - min) / step, spacing / 1000)) { + numSpaces = Math.round(Math.min((max - min) / spacing, maxTicks)); + spacing = (max - min) / numSpaces; + niceMin = min; + niceMax = max; + } else if (countDefined) { + niceMin = minDefined ? min : niceMin; + niceMax = maxDefined ? max : niceMax; + numSpaces = count - 1; + spacing = (niceMax - niceMin) / numSpaces; + } else { + numSpaces = (niceMax - niceMin) / spacing; + if (almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) { + numSpaces = Math.round(numSpaces); + } else { + numSpaces = Math.ceil(numSpaces); + } + } + const decimalPlaces = Math.max( + _decimalPlaces(spacing), + _decimalPlaces(niceMin) + ); + factor = Math.pow(10, isNullOrUndef(precision) ? decimalPlaces : precision); + niceMin = Math.round(niceMin * factor) / factor; + niceMax = Math.round(niceMax * factor) / factor; + let j = 0; + if (minDefined) { + if (includeBounds && niceMin !== min) { + ticks.push({value: min}); + if (niceMin < min) { + j++; + } + if (almostEquals(Math.round((niceMin + j * spacing) * factor) / factor, min, relativeLabelSize(min, minSpacing, generationOptions))) { + j++; + } + } else if (niceMin < min) { + j++; + } + } + for (; j < numSpaces; ++j) { + ticks.push({value: Math.round((niceMin + j * spacing) * factor) / factor}); + } + if (maxDefined && includeBounds && niceMax !== max) { + if (ticks.length && almostEquals(ticks[ticks.length - 1].value, max, relativeLabelSize(max, minSpacing, generationOptions))) { + ticks[ticks.length - 1].value = max; + } else { + ticks.push({value: max}); + } + } else if (!maxDefined || niceMax === max) { + ticks.push({value: niceMax}); + } + return ticks; +} +function relativeLabelSize(value, minSpacing, {horizontal, minRotation}) { + const rad = toRadians(minRotation); + const ratio = (horizontal ? Math.sin(rad) : Math.cos(rad)) || 0.001; + const length = 0.75 * minSpacing * ('' + value).length; + return Math.min(minSpacing / ratio, length); +} +class LinearScaleBase extends Scale { + constructor(cfg) { + super(cfg); + this.start = undefined; + this.end = undefined; + this._startValue = undefined; + this._endValue = undefined; + this._valueRange = 0; + } + parse(raw, index) { + if (isNullOrUndef(raw)) { + return null; + } + if ((typeof raw === 'number' || raw instanceof Number) && !isFinite(+raw)) { + return null; + } + return +raw; + } + handleTickRangeOptions() { + const {beginAtZero} = this.options; + const {minDefined, maxDefined} = this.getUserBounds(); + let {min, max} = this; + const setMin = v => (min = minDefined ? min : v); + const setMax = v => (max = maxDefined ? max : v); + if (beginAtZero) { + const minSign = sign(min); + const maxSign = sign(max); + if (minSign < 0 && maxSign < 0) { + setMax(0); + } else if (minSign > 0 && maxSign > 0) { + setMin(0); + } + } + if (min === max) { + let offset = 1; + if (max >= Number.MAX_SAFE_INTEGER || min <= Number.MIN_SAFE_INTEGER) { + offset = Math.abs(max * 0.05); + } + setMax(max + offset); + if (!beginAtZero) { + setMin(min - offset); + } + } + this.min = min; + this.max = max; + } + getTickLimit() { + const tickOpts = this.options.ticks; + let {maxTicksLimit, stepSize} = tickOpts; + let maxTicks; + if (stepSize) { + maxTicks = Math.ceil(this.max / stepSize) - Math.floor(this.min / stepSize) + 1; + if (maxTicks > 1000) { + console.warn(`scales.${this.id}.ticks.stepSize: ${stepSize} would result generating up to ${maxTicks} ticks. Limiting to 1000.`); + maxTicks = 1000; + } + } else { + maxTicks = this.computeTickLimit(); + maxTicksLimit = maxTicksLimit || 11; + } + if (maxTicksLimit) { + maxTicks = Math.min(maxTicksLimit, maxTicks); + } + return maxTicks; + } + computeTickLimit() { + return Number.POSITIVE_INFINITY; + } + buildTicks() { + const opts = this.options; + const tickOpts = opts.ticks; + let maxTicks = this.getTickLimit(); + maxTicks = Math.max(2, maxTicks); + const numericGeneratorOptions = { + maxTicks, + bounds: opts.bounds, + min: opts.min, + max: opts.max, + precision: tickOpts.precision, + step: tickOpts.stepSize, + count: tickOpts.count, + maxDigits: this._maxDigits(), + horizontal: this.isHorizontal(), + minRotation: tickOpts.minRotation || 0, + includeBounds: tickOpts.includeBounds !== false + }; + const dataRange = this._range || this; + const ticks = generateTicks$1(numericGeneratorOptions, dataRange); + if (opts.bounds === 'ticks') { + _setMinAndMaxByKey(ticks, this, 'value'); + } + if (opts.reverse) { + ticks.reverse(); + this.start = this.max; + this.end = this.min; + } else { + this.start = this.min; + this.end = this.max; + } + return ticks; + } + configure() { + const ticks = this.ticks; + let start = this.min; + let end = this.max; + super.configure(); + if (this.options.offset && ticks.length) { + const offset = (end - start) / Math.max(ticks.length - 1, 1) / 2; + start -= offset; + end += offset; + } + this._startValue = start; + this._endValue = end; + this._valueRange = end - start; + } + getLabelForValue(value) { + return formatNumber(value, this.chart.options.locale, this.options.ticks.format); + } +} + +class LinearScale extends LinearScaleBase { + determineDataLimits() { + const {min, max} = this.getMinMax(true); + this.min = isNumberFinite(min) ? min : 0; + this.max = isNumberFinite(max) ? max : 1; + this.handleTickRangeOptions(); + } + computeTickLimit() { + const horizontal = this.isHorizontal(); + const length = horizontal ? this.width : this.height; + const minRotation = toRadians(this.options.ticks.minRotation); + const ratio = (horizontal ? Math.sin(minRotation) : Math.cos(minRotation)) || 0.001; + const tickFont = this._resolveTickFontOptions(0); + return Math.ceil(length / Math.min(40, tickFont.lineHeight / ratio)); + } + getPixelForValue(value) { + return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange); + } + getValueForPixel(pixel) { + return this._startValue + this.getDecimalForPixel(pixel) * this._valueRange; + } +} +LinearScale.id = 'linear'; +LinearScale.defaults = { + ticks: { + callback: Ticks.formatters.numeric + } +}; + +function isMajor(tickVal) { + const remain = tickVal / (Math.pow(10, Math.floor(log10(tickVal)))); + return remain === 1; +} +function generateTicks(generationOptions, dataRange) { + const endExp = Math.floor(log10(dataRange.max)); + const endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp)); + const ticks = []; + let tickVal = finiteOrDefault(generationOptions.min, Math.pow(10, Math.floor(log10(dataRange.min)))); + let exp = Math.floor(log10(tickVal)); + let significand = Math.floor(tickVal / Math.pow(10, exp)); + let precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1; + do { + ticks.push({value: tickVal, major: isMajor(tickVal)}); + ++significand; + if (significand === 10) { + significand = 1; + ++exp; + precision = exp >= 0 ? 1 : precision; + } + tickVal = Math.round(significand * Math.pow(10, exp) * precision) / precision; + } while (exp < endExp || (exp === endExp && significand < endSignificand)); + const lastTick = finiteOrDefault(generationOptions.max, tickVal); + ticks.push({value: lastTick, major: isMajor(tickVal)}); + return ticks; +} +class LogarithmicScale extends Scale { + constructor(cfg) { + super(cfg); + this.start = undefined; + this.end = undefined; + this._startValue = undefined; + this._valueRange = 0; + } + parse(raw, index) { + const value = LinearScaleBase.prototype.parse.apply(this, [raw, index]); + if (value === 0) { + this._zero = true; + return undefined; + } + return isNumberFinite(value) && value > 0 ? value : null; + } + determineDataLimits() { + const {min, max} = this.getMinMax(true); + this.min = isNumberFinite(min) ? Math.max(0, min) : null; + this.max = isNumberFinite(max) ? Math.max(0, max) : null; + if (this.options.beginAtZero) { + this._zero = true; + } + this.handleTickRangeOptions(); + } + handleTickRangeOptions() { + const {minDefined, maxDefined} = this.getUserBounds(); + let min = this.min; + let max = this.max; + const setMin = v => (min = minDefined ? min : v); + const setMax = v => (max = maxDefined ? max : v); + const exp = (v, m) => Math.pow(10, Math.floor(log10(v)) + m); + if (min === max) { + if (min <= 0) { + setMin(1); + setMax(10); + } else { + setMin(exp(min, -1)); + setMax(exp(max, +1)); + } + } + if (min <= 0) { + setMin(exp(max, -1)); + } + if (max <= 0) { + setMax(exp(min, +1)); + } + if (this._zero && this.min !== this._suggestedMin && min === exp(this.min, 0)) { + setMin(exp(min, -1)); + } + this.min = min; + this.max = max; + } + buildTicks() { + const opts = this.options; + const generationOptions = { + min: this._userMin, + max: this._userMax + }; + const ticks = generateTicks(generationOptions, this); + if (opts.bounds === 'ticks') { + _setMinAndMaxByKey(ticks, this, 'value'); + } + if (opts.reverse) { + ticks.reverse(); + this.start = this.max; + this.end = this.min; + } else { + this.start = this.min; + this.end = this.max; + } + return ticks; + } + getLabelForValue(value) { + return value === undefined + ? '0' + : formatNumber(value, this.chart.options.locale, this.options.ticks.format); + } + configure() { + const start = this.min; + super.configure(); + this._startValue = log10(start); + this._valueRange = log10(this.max) - log10(start); + } + getPixelForValue(value) { + if (value === undefined || value === 0) { + value = this.min; + } + if (value === null || isNaN(value)) { + return NaN; + } + return this.getPixelForDecimal(value === this.min + ? 0 + : (log10(value) - this._startValue) / this._valueRange); + } + getValueForPixel(pixel) { + const decimal = this.getDecimalForPixel(pixel); + return Math.pow(10, this._startValue + decimal * this._valueRange); + } +} +LogarithmicScale.id = 'logarithmic'; +LogarithmicScale.defaults = { + ticks: { + callback: Ticks.formatters.logarithmic, + major: { + enabled: true + } + } +}; + +function getTickBackdropHeight(opts) { + const tickOpts = opts.ticks; + if (tickOpts.display && opts.display) { + const padding = toPadding(tickOpts.backdropPadding); + return valueOrDefault(tickOpts.font && tickOpts.font.size, defaults.font.size) + padding.height; + } + return 0; +} +function measureLabelSize(ctx, font, label) { + label = isArray(label) ? label : [label]; + return { + w: _longestText(ctx, font.string, label), + h: label.length * font.lineHeight + }; +} +function determineLimits(angle, pos, size, min, max) { + if (angle === min || angle === max) { + return { + start: pos - (size / 2), + end: pos + (size / 2) + }; + } else if (angle < min || angle > max) { + return { + start: pos - size, + end: pos + }; + } + return { + start: pos, + end: pos + size + }; +} +function fitWithPointLabels(scale) { + const orig = { + l: scale.left + scale._padding.left, + r: scale.right - scale._padding.right, + t: scale.top + scale._padding.top, + b: scale.bottom - scale._padding.bottom + }; + const limits = Object.assign({}, orig); + const labelSizes = []; + const padding = []; + const valueCount = scale._pointLabels.length; + const pointLabelOpts = scale.options.pointLabels; + const additionalAngle = pointLabelOpts.centerPointLabels ? PI / valueCount : 0; + for (let i = 0; i < valueCount; i++) { + const opts = pointLabelOpts.setContext(scale.getPointLabelContext(i)); + padding[i] = opts.padding; + const pointPosition = scale.getPointPosition(i, scale.drawingArea + padding[i], additionalAngle); + const plFont = toFont(opts.font); + const textSize = measureLabelSize(scale.ctx, plFont, scale._pointLabels[i]); + labelSizes[i] = textSize; + const angleRadians = _normalizeAngle(scale.getIndexAngle(i) + additionalAngle); + const angle = Math.round(toDegrees(angleRadians)); + const hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180); + const vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270); + updateLimits(limits, orig, angleRadians, hLimits, vLimits); + } + scale.setCenterPoint( + orig.l - limits.l, + limits.r - orig.r, + orig.t - limits.t, + limits.b - orig.b + ); + scale._pointLabelItems = buildPointLabelItems(scale, labelSizes, padding); +} +function updateLimits(limits, orig, angle, hLimits, vLimits) { + const sin = Math.abs(Math.sin(angle)); + const cos = Math.abs(Math.cos(angle)); + let x = 0; + let y = 0; + if (hLimits.start < orig.l) { + x = (orig.l - hLimits.start) / sin; + limits.l = Math.min(limits.l, orig.l - x); + } else if (hLimits.end > orig.r) { + x = (hLimits.end - orig.r) / sin; + limits.r = Math.max(limits.r, orig.r + x); + } + if (vLimits.start < orig.t) { + y = (orig.t - vLimits.start) / cos; + limits.t = Math.min(limits.t, orig.t - y); + } else if (vLimits.end > orig.b) { + y = (vLimits.end - orig.b) / cos; + limits.b = Math.max(limits.b, orig.b + y); + } +} +function buildPointLabelItems(scale, labelSizes, padding) { + const items = []; + const valueCount = scale._pointLabels.length; + const opts = scale.options; + const extra = getTickBackdropHeight(opts) / 2; + const outerDistance = scale.drawingArea; + const additionalAngle = opts.pointLabels.centerPointLabels ? PI / valueCount : 0; + for (let i = 0; i < valueCount; i++) { + const pointLabelPosition = scale.getPointPosition(i, outerDistance + extra + padding[i], additionalAngle); + const angle = Math.round(toDegrees(_normalizeAngle(pointLabelPosition.angle + HALF_PI))); + const size = labelSizes[i]; + const y = yForAngle(pointLabelPosition.y, size.h, angle); + const textAlign = getTextAlignForAngle(angle); + const left = leftForTextAlign(pointLabelPosition.x, size.w, textAlign); + items.push({ + x: pointLabelPosition.x, + y, + textAlign, + left, + top: y, + right: left + size.w, + bottom: y + size.h + }); + } + return items; +} +function getTextAlignForAngle(angle) { + if (angle === 0 || angle === 180) { + return 'center'; + } else if (angle < 180) { + return 'left'; + } + return 'right'; +} +function leftForTextAlign(x, w, align) { + if (align === 'right') { + x -= w; + } else if (align === 'center') { + x -= (w / 2); + } + return x; +} +function yForAngle(y, h, angle) { + if (angle === 90 || angle === 270) { + y -= (h / 2); + } else if (angle > 270 || angle < 90) { + y -= h; + } + return y; +} +function drawPointLabels(scale, labelCount) { + const {ctx, options: {pointLabels}} = scale; + for (let i = labelCount - 1; i >= 0; i--) { + const optsAtIndex = pointLabels.setContext(scale.getPointLabelContext(i)); + const plFont = toFont(optsAtIndex.font); + const {x, y, textAlign, left, top, right, bottom} = scale._pointLabelItems[i]; + const {backdropColor} = optsAtIndex; + if (!isNullOrUndef(backdropColor)) { + const padding = toPadding(optsAtIndex.backdropPadding); + ctx.fillStyle = backdropColor; + ctx.fillRect(left - padding.left, top - padding.top, right - left + padding.width, bottom - top + padding.height); + } + renderText( + ctx, + scale._pointLabels[i], + x, + y + (plFont.lineHeight / 2), + plFont, + { + color: optsAtIndex.color, + textAlign: textAlign, + textBaseline: 'middle' + } + ); + } +} +function pathRadiusLine(scale, radius, circular, labelCount) { + const {ctx} = scale; + if (circular) { + ctx.arc(scale.xCenter, scale.yCenter, radius, 0, TAU); + } else { + let pointPosition = scale.getPointPosition(0, radius); + ctx.moveTo(pointPosition.x, pointPosition.y); + for (let i = 1; i < labelCount; i++) { + pointPosition = scale.getPointPosition(i, radius); + ctx.lineTo(pointPosition.x, pointPosition.y); + } + } +} +function drawRadiusLine(scale, gridLineOpts, radius, labelCount) { + const ctx = scale.ctx; + const circular = gridLineOpts.circular; + const {color, lineWidth} = gridLineOpts; + if ((!circular && !labelCount) || !color || !lineWidth || radius < 0) { + return; + } + ctx.save(); + ctx.strokeStyle = color; + ctx.lineWidth = lineWidth; + ctx.setLineDash(gridLineOpts.borderDash); + ctx.lineDashOffset = gridLineOpts.borderDashOffset; + ctx.beginPath(); + pathRadiusLine(scale, radius, circular, labelCount); + ctx.closePath(); + ctx.stroke(); + ctx.restore(); +} +function createPointLabelContext(parent, index, label) { + return createContext(parent, { + label, + index, + type: 'pointLabel' + }); +} +class RadialLinearScale extends LinearScaleBase { + constructor(cfg) { + super(cfg); + this.xCenter = undefined; + this.yCenter = undefined; + this.drawingArea = undefined; + this._pointLabels = []; + this._pointLabelItems = []; + } + setDimensions() { + const padding = this._padding = toPadding(getTickBackdropHeight(this.options) / 2); + const w = this.width = this.maxWidth - padding.width; + const h = this.height = this.maxHeight - padding.height; + this.xCenter = Math.floor(this.left + w / 2 + padding.left); + this.yCenter = Math.floor(this.top + h / 2 + padding.top); + this.drawingArea = Math.floor(Math.min(w, h) / 2); + } + determineDataLimits() { + const {min, max} = this.getMinMax(false); + this.min = isNumberFinite(min) && !isNaN(min) ? min : 0; + this.max = isNumberFinite(max) && !isNaN(max) ? max : 0; + this.handleTickRangeOptions(); + } + computeTickLimit() { + return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options)); + } + generateTickLabels(ticks) { + LinearScaleBase.prototype.generateTickLabels.call(this, ticks); + this._pointLabels = this.getLabels() + .map((value, index) => { + const label = callback(this.options.pointLabels.callback, [value, index], this); + return label || label === 0 ? label : ''; + }) + .filter((v, i) => this.chart.getDataVisibility(i)); + } + fit() { + const opts = this.options; + if (opts.display && opts.pointLabels.display) { + fitWithPointLabels(this); + } else { + this.setCenterPoint(0, 0, 0, 0); + } + } + setCenterPoint(leftMovement, rightMovement, topMovement, bottomMovement) { + this.xCenter += Math.floor((leftMovement - rightMovement) / 2); + this.yCenter += Math.floor((topMovement - bottomMovement) / 2); + this.drawingArea -= Math.min(this.drawingArea / 2, Math.max(leftMovement, rightMovement, topMovement, bottomMovement)); + } + getIndexAngle(index) { + const angleMultiplier = TAU / (this._pointLabels.length || 1); + const startAngle = this.options.startAngle || 0; + return _normalizeAngle(index * angleMultiplier + toRadians(startAngle)); + } + getDistanceFromCenterForValue(value) { + if (isNullOrUndef(value)) { + return NaN; + } + const scalingFactor = this.drawingArea / (this.max - this.min); + if (this.options.reverse) { + return (this.max - value) * scalingFactor; + } + return (value - this.min) * scalingFactor; + } + getValueForDistanceFromCenter(distance) { + if (isNullOrUndef(distance)) { + return NaN; + } + const scaledDistance = distance / (this.drawingArea / (this.max - this.min)); + return this.options.reverse ? this.max - scaledDistance : this.min + scaledDistance; + } + getPointLabelContext(index) { + const pointLabels = this._pointLabels || []; + if (index >= 0 && index < pointLabels.length) { + const pointLabel = pointLabels[index]; + return createPointLabelContext(this.getContext(), index, pointLabel); + } + } + getPointPosition(index, distanceFromCenter, additionalAngle = 0) { + const angle = this.getIndexAngle(index) - HALF_PI + additionalAngle; + return { + x: Math.cos(angle) * distanceFromCenter + this.xCenter, + y: Math.sin(angle) * distanceFromCenter + this.yCenter, + angle + }; + } + getPointPositionForValue(index, value) { + return this.getPointPosition(index, this.getDistanceFromCenterForValue(value)); + } + getBasePosition(index) { + return this.getPointPositionForValue(index || 0, this.getBaseValue()); + } + getPointLabelPosition(index) { + const {left, top, right, bottom} = this._pointLabelItems[index]; + return { + left, + top, + right, + bottom, + }; + } + drawBackground() { + const {backgroundColor, grid: {circular}} = this.options; + if (backgroundColor) { + const ctx = this.ctx; + ctx.save(); + ctx.beginPath(); + pathRadiusLine(this, this.getDistanceFromCenterForValue(this._endValue), circular, this._pointLabels.length); + ctx.closePath(); + ctx.fillStyle = backgroundColor; + ctx.fill(); + ctx.restore(); + } + } + drawGrid() { + const ctx = this.ctx; + const opts = this.options; + const {angleLines, grid} = opts; + const labelCount = this._pointLabels.length; + let i, offset, position; + if (opts.pointLabels.display) { + drawPointLabels(this, labelCount); + } + if (grid.display) { + this.ticks.forEach((tick, index) => { + if (index !== 0) { + offset = this.getDistanceFromCenterForValue(tick.value); + const optsAtIndex = grid.setContext(this.getContext(index - 1)); + drawRadiusLine(this, optsAtIndex, offset, labelCount); + } + }); + } + if (angleLines.display) { + ctx.save(); + for (i = labelCount - 1; i >= 0; i--) { + const optsAtIndex = angleLines.setContext(this.getPointLabelContext(i)); + const {color, lineWidth} = optsAtIndex; + if (!lineWidth || !color) { + continue; + } + ctx.lineWidth = lineWidth; + ctx.strokeStyle = color; + ctx.setLineDash(optsAtIndex.borderDash); + ctx.lineDashOffset = optsAtIndex.borderDashOffset; + offset = this.getDistanceFromCenterForValue(opts.ticks.reverse ? this.min : this.max); + position = this.getPointPosition(i, offset); + ctx.beginPath(); + ctx.moveTo(this.xCenter, this.yCenter); + ctx.lineTo(position.x, position.y); + ctx.stroke(); + } + ctx.restore(); + } + } + drawBorder() {} + drawLabels() { + const ctx = this.ctx; + const opts = this.options; + const tickOpts = opts.ticks; + if (!tickOpts.display) { + return; + } + const startAngle = this.getIndexAngle(0); + let offset, width; + ctx.save(); + ctx.translate(this.xCenter, this.yCenter); + ctx.rotate(startAngle); + ctx.textAlign = 'center'; + ctx.textBaseline = 'middle'; + this.ticks.forEach((tick, index) => { + if (index === 0 && !opts.reverse) { + return; + } + const optsAtIndex = tickOpts.setContext(this.getContext(index)); + const tickFont = toFont(optsAtIndex.font); + offset = this.getDistanceFromCenterForValue(this.ticks[index].value); + if (optsAtIndex.showLabelBackdrop) { + ctx.font = tickFont.string; + width = ctx.measureText(tick.label).width; + ctx.fillStyle = optsAtIndex.backdropColor; + const padding = toPadding(optsAtIndex.backdropPadding); + ctx.fillRect( + -width / 2 - padding.left, + -offset - tickFont.size / 2 - padding.top, + width + padding.width, + tickFont.size + padding.height + ); + } + renderText(ctx, tick.label, 0, -offset, tickFont, { + color: optsAtIndex.color, + }); + }); + ctx.restore(); + } + drawTitle() {} +} +RadialLinearScale.id = 'radialLinear'; +RadialLinearScale.defaults = { + display: true, + animate: true, + position: 'chartArea', + angleLines: { + display: true, + lineWidth: 1, + borderDash: [], + borderDashOffset: 0.0 + }, + grid: { + circular: false + }, + startAngle: 0, + ticks: { + showLabelBackdrop: true, + callback: Ticks.formatters.numeric + }, + pointLabels: { + backdropColor: undefined, + backdropPadding: 2, + display: true, + font: { + size: 10 + }, + callback(label) { + return label; + }, + padding: 5, + centerPointLabels: false + } +}; +RadialLinearScale.defaultRoutes = { + 'angleLines.color': 'borderColor', + 'pointLabels.color': 'color', + 'ticks.color': 'color' +}; +RadialLinearScale.descriptors = { + angleLines: { + _fallback: 'grid' + } +}; + +const INTERVALS = { + millisecond: {common: true, size: 1, steps: 1000}, + second: {common: true, size: 1000, steps: 60}, + minute: {common: true, size: 60000, steps: 60}, + hour: {common: true, size: 3600000, steps: 24}, + day: {common: true, size: 86400000, steps: 30}, + week: {common: false, size: 604800000, steps: 4}, + month: {common: true, size: 2.628e9, steps: 12}, + quarter: {common: false, size: 7.884e9, steps: 4}, + year: {common: true, size: 3.154e10} +}; +const UNITS = (Object.keys(INTERVALS)); +function sorter(a, b) { + return a - b; +} +function parse(scale, input) { + if (isNullOrUndef(input)) { + return null; + } + const adapter = scale._adapter; + const {parser, round, isoWeekday} = scale._parseOpts; + let value = input; + if (typeof parser === 'function') { + value = parser(value); + } + if (!isNumberFinite(value)) { + value = typeof parser === 'string' + ? adapter.parse(value, parser) + : adapter.parse(value); + } + if (value === null) { + return null; + } + if (round) { + value = round === 'week' && (isNumber(isoWeekday) || isoWeekday === true) + ? adapter.startOf(value, 'isoWeek', isoWeekday) + : adapter.startOf(value, round); + } + return +value; +} +function determineUnitForAutoTicks(minUnit, min, max, capacity) { + const ilen = UNITS.length; + for (let i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) { + const interval = INTERVALS[UNITS[i]]; + const factor = interval.steps ? interval.steps : Number.MAX_SAFE_INTEGER; + if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) { + return UNITS[i]; + } + } + return UNITS[ilen - 1]; +} +function determineUnitForFormatting(scale, numTicks, minUnit, min, max) { + for (let i = UNITS.length - 1; i >= UNITS.indexOf(minUnit); i--) { + const unit = UNITS[i]; + if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= numTicks - 1) { + return unit; + } + } + return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0]; +} +function determineMajorUnit(unit) { + for (let i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) { + if (INTERVALS[UNITS[i]].common) { + return UNITS[i]; + } + } +} +function addTick(ticks, time, timestamps) { + if (!timestamps) { + ticks[time] = true; + } else if (timestamps.length) { + const {lo, hi} = _lookup(timestamps, time); + const timestamp = timestamps[lo] >= time ? timestamps[lo] : timestamps[hi]; + ticks[timestamp] = true; + } +} +function setMajorTicks(scale, ticks, map, majorUnit) { + const adapter = scale._adapter; + const first = +adapter.startOf(ticks[0].value, majorUnit); + const last = ticks[ticks.length - 1].value; + let major, index; + for (major = first; major <= last; major = +adapter.add(major, 1, majorUnit)) { + index = map[major]; + if (index >= 0) { + ticks[index].major = true; + } + } + return ticks; +} +function ticksFromTimestamps(scale, values, majorUnit) { + const ticks = []; + const map = {}; + const ilen = values.length; + let i, value; + for (i = 0; i < ilen; ++i) { + value = values[i]; + map[value] = i; + ticks.push({ + value, + major: false + }); + } + return (ilen === 0 || !majorUnit) ? ticks : setMajorTicks(scale, ticks, map, majorUnit); +} +class TimeScale extends Scale { + constructor(props) { + super(props); + this._cache = { + data: [], + labels: [], + all: [] + }; + this._unit = 'day'; + this._majorUnit = undefined; + this._offsets = {}; + this._normalized = false; + this._parseOpts = undefined; + } + init(scaleOpts, opts) { + const time = scaleOpts.time || (scaleOpts.time = {}); + const adapter = this._adapter = new adapters._date(scaleOpts.adapters.date); + mergeIf(time.displayFormats, adapter.formats()); + this._parseOpts = { + parser: time.parser, + round: time.round, + isoWeekday: time.isoWeekday + }; + super.init(scaleOpts); + this._normalized = opts.normalized; + } + parse(raw, index) { + if (raw === undefined) { + return null; + } + return parse(this, raw); + } + beforeLayout() { + super.beforeLayout(); + this._cache = { + data: [], + labels: [], + all: [] + }; + } + determineDataLimits() { + const options = this.options; + const adapter = this._adapter; + const unit = options.time.unit || 'day'; + let {min, max, minDefined, maxDefined} = this.getUserBounds(); + function _applyBounds(bounds) { + if (!minDefined && !isNaN(bounds.min)) { + min = Math.min(min, bounds.min); + } + if (!maxDefined && !isNaN(bounds.max)) { + max = Math.max(max, bounds.max); + } + } + if (!minDefined || !maxDefined) { + _applyBounds(this._getLabelBounds()); + if (options.bounds !== 'ticks' || options.ticks.source !== 'labels') { + _applyBounds(this.getMinMax(false)); + } + } + min = isNumberFinite(min) && !isNaN(min) ? min : +adapter.startOf(Date.now(), unit); + max = isNumberFinite(max) && !isNaN(max) ? max : +adapter.endOf(Date.now(), unit) + 1; + this.min = Math.min(min, max - 1); + this.max = Math.max(min + 1, max); + } + _getLabelBounds() { + const arr = this.getLabelTimestamps(); + let min = Number.POSITIVE_INFINITY; + let max = Number.NEGATIVE_INFINITY; + if (arr.length) { + min = arr[0]; + max = arr[arr.length - 1]; + } + return {min, max}; + } + buildTicks() { + const options = this.options; + const timeOpts = options.time; + const tickOpts = options.ticks; + const timestamps = tickOpts.source === 'labels' ? this.getLabelTimestamps() : this._generate(); + if (options.bounds === 'ticks' && timestamps.length) { + this.min = this._userMin || timestamps[0]; + this.max = this._userMax || timestamps[timestamps.length - 1]; + } + const min = this.min; + const max = this.max; + const ticks = _filterBetween(timestamps, min, max); + this._unit = timeOpts.unit || (tickOpts.autoSkip + ? determineUnitForAutoTicks(timeOpts.minUnit, this.min, this.max, this._getLabelCapacity(min)) + : determineUnitForFormatting(this, ticks.length, timeOpts.minUnit, this.min, this.max)); + this._majorUnit = !tickOpts.major.enabled || this._unit === 'year' ? undefined + : determineMajorUnit(this._unit); + this.initOffsets(timestamps); + if (options.reverse) { + ticks.reverse(); + } + return ticksFromTimestamps(this, ticks, this._majorUnit); + } + initOffsets(timestamps) { + let start = 0; + let end = 0; + let first, last; + if (this.options.offset && timestamps.length) { + first = this.getDecimalForValue(timestamps[0]); + if (timestamps.length === 1) { + start = 1 - first; + } else { + start = (this.getDecimalForValue(timestamps[1]) - first) / 2; + } + last = this.getDecimalForValue(timestamps[timestamps.length - 1]); + if (timestamps.length === 1) { + end = last; + } else { + end = (last - this.getDecimalForValue(timestamps[timestamps.length - 2])) / 2; + } + } + const limit = timestamps.length < 3 ? 0.5 : 0.25; + start = _limitValue(start, 0, limit); + end = _limitValue(end, 0, limit); + this._offsets = {start, end, factor: 1 / (start + 1 + end)}; + } + _generate() { + const adapter = this._adapter; + const min = this.min; + const max = this.max; + const options = this.options; + const timeOpts = options.time; + const minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, this._getLabelCapacity(min)); + const stepSize = valueOrDefault(timeOpts.stepSize, 1); + const weekday = minor === 'week' ? timeOpts.isoWeekday : false; + const hasWeekday = isNumber(weekday) || weekday === true; + const ticks = {}; + let first = min; + let time, count; + if (hasWeekday) { + first = +adapter.startOf(first, 'isoWeek', weekday); + } + first = +adapter.startOf(first, hasWeekday ? 'day' : minor); + if (adapter.diff(max, min, minor) > 100000 * stepSize) { + throw new Error(min + ' and ' + max + ' are too far apart with stepSize of ' + stepSize + ' ' + minor); + } + const timestamps = options.ticks.source === 'data' && this.getDataTimestamps(); + for (time = first, count = 0; time < max; time = +adapter.add(time, stepSize, minor), count++) { + addTick(ticks, time, timestamps); + } + if (time === max || options.bounds === 'ticks' || count === 1) { + addTick(ticks, time, timestamps); + } + return Object.keys(ticks).sort((a, b) => a - b).map(x => +x); + } + getLabelForValue(value) { + const adapter = this._adapter; + const timeOpts = this.options.time; + if (timeOpts.tooltipFormat) { + return adapter.format(value, timeOpts.tooltipFormat); + } + return adapter.format(value, timeOpts.displayFormats.datetime); + } + _tickFormatFunction(time, index, ticks, format) { + const options = this.options; + const formats = options.time.displayFormats; + const unit = this._unit; + const majorUnit = this._majorUnit; + const minorFormat = unit && formats[unit]; + const majorFormat = majorUnit && formats[majorUnit]; + const tick = ticks[index]; + const major = majorUnit && majorFormat && tick && tick.major; + const label = this._adapter.format(time, format || (major ? majorFormat : minorFormat)); + const formatter = options.ticks.callback; + return formatter ? callback(formatter, [label, index, ticks], this) : label; + } + generateTickLabels(ticks) { + let i, ilen, tick; + for (i = 0, ilen = ticks.length; i < ilen; ++i) { + tick = ticks[i]; + tick.label = this._tickFormatFunction(tick.value, i, ticks); + } + } + getDecimalForValue(value) { + return value === null ? NaN : (value - this.min) / (this.max - this.min); + } + getPixelForValue(value) { + const offsets = this._offsets; + const pos = this.getDecimalForValue(value); + return this.getPixelForDecimal((offsets.start + pos) * offsets.factor); + } + getValueForPixel(pixel) { + const offsets = this._offsets; + const pos = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end; + return this.min + pos * (this.max - this.min); + } + _getLabelSize(label) { + const ticksOpts = this.options.ticks; + const tickLabelWidth = this.ctx.measureText(label).width; + const angle = toRadians(this.isHorizontal() ? ticksOpts.maxRotation : ticksOpts.minRotation); + const cosRotation = Math.cos(angle); + const sinRotation = Math.sin(angle); + const tickFontSize = this._resolveTickFontOptions(0).size; + return { + w: (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation), + h: (tickLabelWidth * sinRotation) + (tickFontSize * cosRotation) + }; + } + _getLabelCapacity(exampleTime) { + const timeOpts = this.options.time; + const displayFormats = timeOpts.displayFormats; + const format = displayFormats[timeOpts.unit] || displayFormats.millisecond; + const exampleLabel = this._tickFormatFunction(exampleTime, 0, ticksFromTimestamps(this, [exampleTime], this._majorUnit), format); + const size = this._getLabelSize(exampleLabel); + const capacity = Math.floor(this.isHorizontal() ? this.width / size.w : this.height / size.h) - 1; + return capacity > 0 ? capacity : 1; + } + getDataTimestamps() { + let timestamps = this._cache.data || []; + let i, ilen; + if (timestamps.length) { + return timestamps; + } + const metas = this.getMatchingVisibleMetas(); + if (this._normalized && metas.length) { + return (this._cache.data = metas[0].controller.getAllParsedValues(this)); + } + for (i = 0, ilen = metas.length; i < ilen; ++i) { + timestamps = timestamps.concat(metas[i].controller.getAllParsedValues(this)); + } + return (this._cache.data = this.normalize(timestamps)); + } + getLabelTimestamps() { + const timestamps = this._cache.labels || []; + let i, ilen; + if (timestamps.length) { + return timestamps; + } + const labels = this.getLabels(); + for (i = 0, ilen = labels.length; i < ilen; ++i) { + timestamps.push(parse(this, labels[i])); + } + return (this._cache.labels = this._normalized ? timestamps : this.normalize(timestamps)); + } + normalize(values) { + return _arrayUnique(values.sort(sorter)); + } +} +TimeScale.id = 'time'; +TimeScale.defaults = { + bounds: 'data', + adapters: {}, + time: { + parser: false, + unit: false, + round: false, + isoWeekday: false, + minUnit: 'millisecond', + displayFormats: {} + }, + ticks: { + source: 'auto', + major: { + enabled: false + } + } +}; + +function interpolate(table, val, reverse) { + let lo = 0; + let hi = table.length - 1; + let prevSource, nextSource, prevTarget, nextTarget; + if (reverse) { + if (val >= table[lo].pos && val <= table[hi].pos) { + ({lo, hi} = _lookupByKey(table, 'pos', val)); + } + ({pos: prevSource, time: prevTarget} = table[lo]); + ({pos: nextSource, time: nextTarget} = table[hi]); + } else { + if (val >= table[lo].time && val <= table[hi].time) { + ({lo, hi} = _lookupByKey(table, 'time', val)); + } + ({time: prevSource, pos: prevTarget} = table[lo]); + ({time: nextSource, pos: nextTarget} = table[hi]); + } + const span = nextSource - prevSource; + return span ? prevTarget + (nextTarget - prevTarget) * (val - prevSource) / span : prevTarget; +} +class TimeSeriesScale extends TimeScale { + constructor(props) { + super(props); + this._table = []; + this._minPos = undefined; + this._tableRange = undefined; + } + initOffsets() { + const timestamps = this._getTimestampsForTable(); + const table = this._table = this.buildLookupTable(timestamps); + this._minPos = interpolate(table, this.min); + this._tableRange = interpolate(table, this.max) - this._minPos; + super.initOffsets(timestamps); + } + buildLookupTable(timestamps) { + const {min, max} = this; + const items = []; + const table = []; + let i, ilen, prev, curr, next; + for (i = 0, ilen = timestamps.length; i < ilen; ++i) { + curr = timestamps[i]; + if (curr >= min && curr <= max) { + items.push(curr); + } + } + if (items.length < 2) { + return [ + {time: min, pos: 0}, + {time: max, pos: 1} + ]; + } + for (i = 0, ilen = items.length; i < ilen; ++i) { + next = items[i + 1]; + prev = items[i - 1]; + curr = items[i]; + if (Math.round((next + prev) / 2) !== curr) { + table.push({time: curr, pos: i / (ilen - 1)}); + } + } + return table; + } + _getTimestampsForTable() { + let timestamps = this._cache.all || []; + if (timestamps.length) { + return timestamps; + } + const data = this.getDataTimestamps(); + const label = this.getLabelTimestamps(); + if (data.length && label.length) { + timestamps = this.normalize(data.concat(label)); + } else { + timestamps = data.length ? data : label; + } + timestamps = this._cache.all = timestamps; + return timestamps; + } + getDecimalForValue(value) { + return (interpolate(this._table, value) - this._minPos) / this._tableRange; + } + getValueForPixel(pixel) { + const offsets = this._offsets; + const decimal = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end; + return interpolate(this._table, decimal * this._tableRange + this._minPos, true); + } +} +TimeSeriesScale.id = 'timeseries'; +TimeSeriesScale.defaults = TimeScale.defaults; + +var scales = /*#__PURE__*/Object.freeze({ +__proto__: null, +CategoryScale: CategoryScale, +LinearScale: LinearScale, +LogarithmicScale: LogarithmicScale, +RadialLinearScale: RadialLinearScale, +TimeScale: TimeScale, +TimeSeriesScale: TimeSeriesScale +}); + +const registerables = [ + controllers, + elements, + plugins, + scales, +]; + +export { Animation, Animations, ArcElement, BarController, BarElement, BasePlatform, BasicPlatform, BubbleController, CategoryScale, Chart, DatasetController, plugin_decimation as Decimation, DomPlatform, DoughnutController, Element, plugin_filler as Filler, Interaction, plugin_legend as Legend, LineController, LineElement, LinearScale, LogarithmicScale, PieController, PointElement, PolarAreaController, RadarController, RadialLinearScale, Scale, ScatterController, plugin_subtitle as SubTitle, Ticks, TimeScale, TimeSeriesScale, plugin_title as Title, plugin_tooltip as Tooltip, adapters as _adapters, _detectPlatform, animator, controllers, elements, layouts, plugins, registerables, registry, scales }; diff --git a/EgwCoreLib.BlazorTest/wwwroot/lib/Chart.js/chart.esm.min.js b/EgwCoreLib.BlazorTest/wwwroot/lib/Chart.js/chart.esm.min.js new file mode 100644 index 0000000..709fdc0 --- /dev/null +++ b/EgwCoreLib.BlazorTest/wwwroot/lib/Chart.js/chart.esm.min.js @@ -0,0 +1 @@ +import{r as requestAnimFrame,a as resolve,e as effects,c as color,d as defaults,i as isObject,b as isArray,v as valueOrDefault,u as unlistenArrayEvents,l as listenArrayEvents,f as resolveObjectKey,g as isNumberFinite,h as createContext,j as defined,s as sign,k as isNullOrUndef,_ as _arrayUnique,t as toRadians,m as toPercentage,n as toDimension,T as TAU,o as formatNumber,p as _angleBetween,H as HALF_PI,P as PI,q as isNumber,w as _limitValue,x as _lookupByKey,y as getRelativePosition$1,z as _isPointInArea,A as _rlookupByKey,B as getAngleFromPoint,C as toPadding,D as each,E as getMaximumSize,F as _getParentNode,G as readUsedSize,I as throttled,J as supportsEventListenerOptions,K as _isDomSupported,L as log10,M as _factorize,N as finiteOrDefault,O as callback,Q as _addGrace,R as toDegrees,S as _measureText,U as _int16Range,V as _alignPixel,W as clipArea,X as renderText,Y as unclipArea,Z as toFont,$ as _toLeftRightCenter,a0 as _alignStartEnd,a1 as overrides,a2 as merge,a3 as _capitalize,a4 as descriptors,a5 as isFunction,a6 as _attachContext,a7 as _createResolver,a8 as _descriptors,a9 as mergeIf,aa as uid,ab as debounce,ac as retinaScale,ad as clearCanvas,ae as setsEqual,af as _elementsEqual,ag as _isClickEvent,ah as _isBetween,ai as _readValueToProps,aj as _updateBezierControlPoints,ak as _computeSegments,al as _boundSegments,am as _steppedInterpolation,an as _bezierInterpolation,ao as _pointInLine,ap as _steppedLineTo,aq as _bezierCurveTo,ar as drawPoint,as as addRoundedRectPath,at as toTRBL,au as toTRBLCorners,av as _boundSegment,aw as _normalizeAngle,ax as getRtlAdapter,ay as overrideTextDirection,az as _textX,aA as restoreTextDirection,aB as noop,aC as distanceBetweenPoints,aD as _setMinAndMaxByKey,aE as niceNum,aF as almostWhole,aG as almostEquals,aH as _decimalPlaces,aI as _longestText,aJ as _filterBetween,aK as _lookup}from"./chunks/helpers.segment.js";export{d as defaults}from"./chunks/helpers.segment.js";class Animator{constructor(){this._request=null,this._charts=new Map,this._running=!1,this._lastDate=void 0}_notify(e,i,a,t){const s=i.listeners[t],r=i.duration;s.forEach(t=>t({chart:e,initial:i.initial,numSteps:r,currentStep:Math.min(a-i.start,r)}))}_refresh(){this._request||(this._running=!0,this._request=requestAnimFrame.call(window,()=>{this._update(),this._request=null,this._running&&this._refresh()}))}_update(n=Date.now()){let o=0;this._charts.forEach((a,s)=>{if(a.running&&a.items.length){const r=a.items;let t=r.length-1,e=!1,i;for(;0<=t;--t)i=r[t],i._active?(i._total>a.duration&&(a.duration=i._total),i.tick(n),e=!0):(r[t]=r[r.length-1],r.pop());e&&(s.draw(),this._notify(s,a,n,"progress")),r.length||(a.running=!1,this._notify(s,a,n,"complete"),a.initial=!1),o+=r.length}}),this._lastDate=n,0===o&&(this._running=!1)}_getAnims(t){const e=this._charts;let i=e.get(t);return i||(i={running:!1,initial:!0,items:[],listeners:{complete:[],progress:[]}},e.set(t,i)),i}listen(t,e,i){this._getAnims(t).listeners[e].push(i)}add(t,e){e&&e.length&&this._getAnims(t).items.push(...e)}has(t){return 0Math.max(t,e._duration),0),this._refresh())}running(t){if(!this._running)return!1;t=this._charts.get(t);return!!(t&&t.running&&t.items.length)}stop(e){const i=this._charts.get(e);if(i&&i.items.length){const a=i.items;let t=a.length-1;for(;0<=t;--t)a[t].cancel();i.items=[],this._notify(e,i,Date.now(),"complete")}}remove(t){return this._charts.delete(t)}}var animator=new Animator;const transparent="transparent",interpolators={boolean(t,e,i){return.5{i.push({res:t,rej:e})})}_notify(t){var e=t?"res":"rej";const i=this._promises||[];for(let t=0;t"onProgress"!==t&&"onComplete"!==t&&"fn"!==t}),defaults.set("animations",{colors:{type:"color",properties:colors},numbers:{type:"number",properties:numbers}}),defaults.describe("animations",{_fallback:"animation"}),defaults.set("transitions",{active:{animation:{duration:400}},resize:{animation:{duration:0}},show:{animations:{colors:{from:"transparent"},visible:{type:"boolean",duration:0}}},hide:{animations:{colors:{to:"transparent"},visible:{type:"boolean",easing:"linear",fn:t=>0|t}}}});class Animations{constructor(t,e){this._chart=t,this._properties=new Map,this.configure(e)}configure(s){if(isObject(s)){const r=this._properties;Object.getOwnPropertyNames(s).forEach(e=>{const t=s[e];if(isObject(t)){const i={};for(const a of animationOptions)i[a]=t[a];(isArray(t.properties)&&t.properties||[e]).forEach(t=>{t!==e&&r.has(t)||r.set(t,i)})}})}}_animateOptions(t,e){const i=e.options;e=resolveTargetOptions(t,i);if(!e)return[];e=this._createAnimations(e,i);return i.$shared&&awaitAll(t.options.$animations,i).then(()=>{t.options=i},()=>{}),e}_createAnimations(e,i){const a=this._properties,s=[],r=e.$animations||(e.$animations={});var t=Object.keys(i),n=Date.now();let o;for(o=t.length-1;0<=o;--o){const d=t[o];if("$"!==d.charAt(0))if("options"!==d){var l=i[d];let t=r[d];var h=a.get(d);if(t){if(h&&t.active()){t.update(h,l,n);continue}t.cancel()}h&&h.duration?(r[d]=t=new Animation(h,e,d,l),s.push(t)):e[d]=l}else s.push(...this._animateOptions(e,i))}return s}update(t,e){if(0!==this._properties.size){var i=this._createAnimations(t,e);return i.length?(animator.add(this._chart,i),!0):void 0}Object.assign(t,e)}}function awaitAll(e,t){const i=[];var a=Object.keys(t);for(let t=0;ti[t].axis===e).shift()}function createDatasetContext(t,e){return createContext(t,{active:!1,dataset:void 0,datasetIndex:e,index:e,mode:"default",type:"dataset"})}function createDataContext(t,e,i){return createContext(t,{active:!1,dataIndex:e,parsed:void 0,raw:void 0,element:i,index:e,mode:"default",type:"data"})}function clearStacks(t,e){var i=t.controller.index,a=t.vScale&&t.vScale.axis;if(a)for(const s of e=e||t._parsed){const r=s._stacks;if(!r||void 0===r[a]||void 0===r[a][i])return;delete r[a][i]}}const isDirectUpdateMode=t=>"reset"===t||"none"===t,cloneIfNotShared=(t,e)=>e?t:Object.assign({},t),createStack=(t,e,i)=>t&&!e.hidden&&e._stacked&&{keys:getSortedDatasetIndices(i,!0),values:null};class DatasetController{constructor(t,e){this.chart=t,this._ctx=t.ctx,this.index=e,this._cachedDataOpts={},this._cachedMeta=this.getMeta(),this._type=this._cachedMeta.type,this.options=void 0,this._parsing=!1,this._data=void 0,this._objectData=void 0,this._sharedOptions=void 0,this._drawStart=void 0,this._drawCount=void 0,this.enableOptionSharing=!1,this.$context=void 0,this._syncList=[],this.initialize()}initialize(){const t=this._cachedMeta;this.configure(),this.linkScales(),t._stacked=isStacked(t.vScale,t),this.addElements()}updateIndex(t){this.index!==t&&clearStacks(this._cachedMeta),this.index=t}linkScales(){var t=this.chart;const e=this._cachedMeta;var i=this.getDataset(),a=(t,e,i,a)=>"x"===t?e:"r"===t?a:i,s=e.xAxisID=valueOrDefault(i.xAxisID,getFirstScaleId(t,"x")),r=e.yAxisID=valueOrDefault(i.yAxisID,getFirstScaleId(t,"y")),n=e.rAxisID=valueOrDefault(i.rAxisID,getFirstScaleId(t,"r")),i=e.indexAxis,t=e.iAxisID=a(i,s,r,n),i=e.vAxisID=a(i,r,s,n);e.xScale=this.getScaleForId(s),e.yScale=this.getScaleForId(r),e.rScale=this.getScaleForId(n),e.iScale=this.getScaleForId(t),e.vScale=this.getScaleForId(i)}getDataset(){return this.chart.data.datasets[this.index]}getMeta(){return this.chart.getDatasetMeta(this.index)}getScaleForId(t){return this.chart.scales[t]}_getOtherScale(t){var e=this._cachedMeta;return t===e.iScale?e.vScale:e.iScale}reset(){this._update("reset")}_destroy(){var t=this._cachedMeta;this._data&&unlistenArrayEvents(this._data,this),t._stacked&&clearStacks(t)}_dataCheck(){const t=this.getDataset();var e=t.data||(t.data=[]),i=this._data;if(isObject(e))this._data=convertObjectDataToArray(e);else if(i!==e){if(i){unlistenArrayEvents(i,this);const a=this._cachedMeta;clearStacks(a),a._parsed=[]}e&&Object.isExtensible(e)&&listenArrayEvents(e,this),this._syncList=[],this._data=e}}addElements(){const t=this._cachedMeta;this._dataCheck(),this.datasetElementType&&(t.dataset=new this.datasetElementType)}buildOrUpdateElements(t){const e=this._cachedMeta;var i=this.getDataset();let a=!1;this._dataCheck();var s=e._stacked;e._stacked=isStacked(e.vScale,e),e.stack!==i.stack&&(a=!0,clearStacks(e),e.stack=i.stack),this._resyncElements(t),!a&&s===e._stacked||updateStacks(this,e._parsed)}configure(){const t=this.chart.config;var e=t.datasetScopeKeys(this._type),e=t.getOptionScopes(this.getDataset(),e,!0);this.options=t.createResolver(e,this.getContext()),this._parsing=this.options.parsing,this._cachedDataOpts={}}parse(t,e){const{_cachedMeta:i,_data:a}=this;var{iScale:s,_stacked:r}=i;const n=s.axis;let o=0===t&&e===a.length||i._sorted,l=0t||dthis.getContext(i,a),n);return h.$shared&&(h.$shared=o,s[r]=Object.freeze(cloneIfNotShared(h,o))),h}_resolveAnimations(t,e,i){var a=this.chart;const s=this._cachedDataOpts;var r=`animation-${e}`,n=s[r];if(n)return n;let o;if(!1!==a.options.animation){const l=this.chart.config;n=l.datasetAnimationScopeKeys(this._type,e),n=l.getOptionScopes(this.getDataset(),n);o=l.createResolver(n,this.getContext(t,i,e))}a=new Animations(a,o&&o.animations);return o&&o._cacheable&&(s[r]=Object.freeze(a)),a}getSharedOptions(t){if(t.$shared)return this._sharedOptions||(this._sharedOptions=Object.assign({},t))}includeOptions(t,e){return!e||isDirectUpdateMode(t)||this.chart._animationsDisabled}updateElement(t,e,i,a){isDirectUpdateMode(a)?Object.assign(t,i):this._resolveAnimations(e,a).update(t,i)}updateSharedOptions(t,e,i){t&&!isDirectUpdateMode(e)&&this._resolveAnimations(void 0,e).update(t,i)}_setStyle(t,e,i,a){t.active=a;var s=this.getStyle(e,a);this._resolveAnimations(e,i,a).update(t,{options:!a&&this.getSharedOptions(s)||s})}removeHoverStyle(t,e,i){this._setStyle(t,i,"active",!1)}setHoverStyle(t,e,i){this._setStyle(t,i,"active",!0)}_removeDatasetHoverStyle(){var t=this._cachedMeta.dataset;t&&this._setStyle(t,void 0,"active",!1)}_setDatasetHoverStyle(){var t=this._cachedMeta.dataset;t&&this._setStyle(t,void 0,"active",!0)}_resyncElements(t){var e,i,a,s=this._data,r=this._cachedMeta.data;for([e,i,a]of this._syncList)this[e](i,a);this._syncList=[];var n=r.length,r=s.length,s=Math.min(r,n);s&&this.parse(0,s),n{for(t.length+=e,n=t.length-1;n>=r;n--)t[n]=t[n-e]};for(o(s),n=t;nt-e))}return a._cache.$bar}function computeMinSampleSize(t){const e=t.iScale;var i=getAllScaleValues(e,t.type);let a=e._length,s,r,n,o;var l=()=>{32767!==n&&-32768!==n&&(defined(o)&&(a=Math.min(a,Math.abs(n-o)||a)),o=n)};for(s=0,r=i.length;sMath.abs(a)&&(n=a,o=t),e[i.axis]=o,e._custom={barStart:n,barEnd:o,start:s,end:r,min:t,max:a}}function parseValue(t,e,i,a){return isArray(t)?parseFloatBar(t,e,i,a):e[i.axis]=i.parse(t,a),e}function parseArrayOrPrimitive(t,e,i,a){const s=t.iScale;var r=t.vScale,n=s.getLabels(),o=s===r;const l=[];let h,d,c,u;for(d=(h=i)+a;h=i?1:-1)}function borderProps(t){let e,i,a,s,r;return a=t.horizontal?(e=t.base>t.x,i="left","right"):(e=t.base_angleBetween(t,u,g,!0)?1:Math.max(e,e*a,i,i*a),t=(t,e,i)=>_angleBetween(t,u,g,!0)?-1:Math.min(e,e*a,i,i*a),e=c(0,o,h),c=c(HALF_PI,l,d),h=t(PI,o,h),d=t(PI+HALF_PI,l,d);i=(e-h)/2,s=(c-d)/2,r=-(e+h)/2,n=-(c+d)/2}return{ratioX:i,ratioY:s,offsetX:r,offsetY:n}}BubbleController.id="bubble",BubbleController.defaults={datasetElementType:!1,dataElementType:"point",animations:{numbers:{type:"number",properties:["x","y","borderWidth","radius"]}}},BubbleController.overrides={scales:{x:{type:"linear"},y:{type:"linear"}},plugins:{tooltip:{callbacks:{title(){return""}}}}};class DoughnutController extends DatasetController{constructor(t,e){super(t,e),this.enableOptionSharing=!0,this.innerRadius=void 0,this.outerRadius=void 0,this.offsetX=void 0,this.offsetY=void 0}linkScales(){}parse(a,s){const r=this.getDataset().data,n=this._cachedMeta;if(!1===this._parsing)n._parsed=r;else{let t=t=>+r[t];if(isObject(r[a])){const{key:o="value"}=this._parsing;t=t=>+resolveObjectKey(r[t],o)}let e,i;for(i=(e=a)+s;e"spacing"!==t,_indexable:t=>"spacing"!==t},DoughnutController.overrides={aspectRatio:1,plugins:{legend:{labels:{generateLabels(s){const t=s.data;if(t.labels.length&&t.datasets.length){const{labels:{pointStyle:r}}=s.legend.options;return t.labels.map((t,e)=>{const i=s.getDatasetMeta(0);var a=i.controller.getStyle(e);return{text:t,fillStyle:a.backgroundColor,strokeStyle:a.borderColor,lineWidth:a.borderWidth,pointStyle:r,hidden:!s.getDataVisibility(e),index:e}})}return[]}},onClick(t,e,i){i.chart.toggleDataVisibility(e.index),i.chart.update()}},tooltip:{callbacks:{title(){return""},label(t){let e=t.label;t=": "+t.formattedValue;return isArray(e)?(e=e.slice(),e[0]+=t):e+=t,e}}}}};class LineController extends DatasetController{initialize(){this.enableOptionSharing=!0,super.initialize()}update(t){var e=this._cachedMeta;const{dataset:i,data:a=[],_dataset:s}=e;var r=this.chart._animationsDisabled;let{start:n,count:o}=getStartAndCountOfVisiblePoints(e,a,r);this._drawStart=n,this._drawCount=o,scaleRangesChanged(e)&&(n=0,o=a.length),i._chart=this.chart,i._datasetIndex=this.index,i._decimated=!!s._decimated,i.points=a;const l=this.resolveDatasetElementOptions(t);this.options.showLine||(l.borderWidth=0),l.segment=this.options.segment,this.updateElement(i,void 0,{animated:!r,options:l},t),this.updateElements(a,n,o,t)}updateElements(e,i,a,s){var r="reset"===s;const{iScale:n,vScale:o,_stacked:l,_dataset:h}=this._cachedMeta;var t=this.resolveDataElementOptions(i,s),d=this.getSharedOptions(t),c=this.includeOptions(s,d),u=n.axis,g=o.axis,{spanGaps:p,segment:f}=this.options,m=isNumber(p)?p:Number.POSITIVE_INFINITY,v=this.chart._animationsDisabled||r||"none"===s;let x=0m,f&&(M.parsed=_,M.raw=h.data[t]),c&&(M.options=d||this.resolveDataElementOptions(t,b.active?"active":s)),v||this.updateElement(b,t,M,s),x=_}this.updateSharedOptions(d,s,t)}getMaxOverflow(){var t=this._cachedMeta,e=t.dataset,i=e.options&&e.options.borderWidth||0;const a=t.data||[];if(!a.length)return i;e=a[0].size(this.resolveDataElementOptions(0)),t=a[a.length-1].size(this.resolveDataElementOptions(a.length-1));return Math.max(i,e,t)/2}draw(){const t=this._cachedMeta;t.dataset.updateControlPoints(this.chart.chartArea,t.iScale.axis),super.draw()}}function getStartAndCountOfVisiblePoints(t,e,i){var a=e.length;let s=0,r=a;if(t._sorted){const{iScale:d,_parsed:c}=t;var n=d.axis,{min:o,max:l,minDefined:h,maxDefined:t}=d.getUserBounds();h&&(s=_limitValue(Math.min(_lookupByKey(c,d.axis,o).lo,i?a:_lookupByKey(e,n,d.getPixelForValue(o)).lo),0,a-1)),r=t?_limitValue(Math.max(_lookupByKey(c,d.axis,l).hi+1,i?0:_lookupByKey(e,n,d.getPixelForValue(l)).hi+1),s,a)-s:a-s}return{start:s,count:r}}function scaleRangesChanged(t){var{xScale:e,yScale:i,_scaleRanges:a}=t,s={xmin:e.min,xmax:e.max,ymin:i.min,ymax:i.max};if(!a)return t._scaleRanges=s,!0;i=a.xmin!==e.min||a.xmax!==e.max||a.ymin!==i.min||a.ymax!==i.max;return Object.assign(a,s),i}LineController.id="line",LineController.defaults={datasetElementType:"line",dataElementType:"point",showLine:!0,spanGaps:!1},LineController.overrides={scales:{_index_:{type:"category"},_value_:{type:"linear"}}};class PolarAreaController extends DatasetController{constructor(t,e){super(t,e),this.innerRadius=void 0,this.outerRadius=void 0}getLabelAndValue(t){var e=this._cachedMeta,i=this.chart,a=i.data.labels||[],i=formatNumber(e._parsed[t].r,i.options.locale);return{label:a[t]||"",value:i}}update(t){var e=this._cachedMeta.data;this._updateRadius(),this.updateElements(e,0,e.length,t)}_updateRadius(){const t=this.chart;var e=t.chartArea,i=t.options,e=Math.min(e.right-e.left,e.bottom-e.top),e=Math.max(e/2,0),i=(e-Math.max(i.cutoutPercentage?e/100*i.cutoutPercentage:1,0))/t.getVisibleDatasetCount();this.outerRadius=e-i*this.index,this.innerRadius=this.outerRadius-i}updateElements(a,t,e,s){var r="reset"===s;const n=this.chart;var o=this.getDataset(),l=n.options.animation;const h=this._cachedMeta.rScale;var d=h.xCenter,c=h.yCenter,u=h.getIndexAngle(0)-.5*PI;let g=u,p;var f=360/this.countVisibleElements();for(p=0;p{!isNaN(i.data[e])&&this.chart.getDataVisibility(e)&&a++}),a}_computeAngle(t,e,i){return this.chart.getDataVisibility(t)?toRadians(this.resolveDataElementOptions(t,e).angle||i):0}}PolarAreaController.id="polarArea",PolarAreaController.defaults={dataElementType:"arc",animation:{animateRotate:!0,animateScale:!0},animations:{numbers:{type:"number",properties:["x","y","startAngle","endAngle","innerRadius","outerRadius"]}},indexAxis:"r",startAngle:0},PolarAreaController.overrides={aspectRatio:1,plugins:{legend:{labels:{generateLabels(s){const t=s.data;if(t.labels.length&&t.datasets.length){const{labels:{pointStyle:r}}=s.legend.options;return t.labels.map((t,e)=>{const i=s.getDatasetMeta(0);var a=i.controller.getStyle(e);return{text:t,fillStyle:a.backgroundColor,strokeStyle:a.borderColor,lineWidth:a.borderWidth,pointStyle:r,hidden:!s.getDataVisibility(e),index:e}})}return[]}},onClick(t,e,i){i.chart.toggleDataVisibility(e.index),i.chart.update()}},tooltip:{callbacks:{title(){return""},label(t){return t.chart.data.labels[t.dataIndex]+": "+t.formattedValue}}}},scales:{r:{type:"radialLinear",angleLines:{display:!1},beginAtZero:!0,grid:{circular:!0},pointLabels:{display:!1},startAngle:0}}};class PieController extends DoughnutController{}PieController.id="pie",PieController.defaults={cutout:0,rotation:0,circumference:360,radius:"100%"};class RadarController extends DatasetController{getLabelAndValue(t){const e=this._cachedMeta.vScale;var i=this.getParsed(t);return{label:e.getLabels()[t],value:""+e.getLabelForValue(i[e.axis])}}update(t){const e=this._cachedMeta,i=e.dataset;var a=e.data||[],s=e.iScale.getLabels();if(i.points=a,"resize"!==t){const r=this.resolveDatasetElementOptions(t);this.options.showLine||(r.borderWidth=0);s={_loop:!0,_fullLoop:s.length===a.length,options:r};this.updateElement(i,void 0,s,t)}this.updateElements(a,0,a.length,t)}updateElements(e,i,a,s){var r=this.getDataset();const n=this._cachedMeta.rScale;var o="reset"===s;for(let t=i;t{t[o](s[n],a)&&r.push({element:t,datasetIndex:e,index:i}),t.inRange(s.x,s.y,a)&&(l=!0)}),i.intersect&&!l?[]:r}var Interaction={modes:{index(t,e,i,a){var s=getRelativePosition(e,t),e=i.axis||"x";const r=i.intersect?getIntersectItems(t,s,e,a):getNearestItems(t,s,e,!1,a),n=[];return r.length?(t.getSortedVisibleDatasetMetas().forEach(t=>{var e=r[0].index,i=t.data[e];i&&!i.skip&&n.push({element:i,datasetIndex:t.index,index:e})}),n):[]},dataset(t,e,i,a){var s=getRelativePosition(e,t),e=i.axis||"xy";let r=i.intersect?getIntersectItems(t,s,e,a):getNearestItems(t,s,e,!1,a);if(0t.pos===e)}function filterDynamicPositionByAxis(t,e){return t.filter(t=>-1===STATIC_POSITIONS.indexOf(t.pos)&&t.box.axis===e)}function sortByWeight(t,a){return t.sort((t,e)=>{var i=a?e:t,e=a?t:e;return i.weight===e.weight?i.index-e.index:i.weight-e.weight})}function wrapBoxes(t){const e=[];let i,a,s,r,n,o;for(i=0,a=(t||[]).length;it.box.fullSize),!0);const a=sortByWeight(filterByPosition(e,"left"),!0),s=sortByWeight(filterByPosition(e,"right")),r=sortByWeight(filterByPosition(e,"top"),!0);var n=sortByWeight(filterByPosition(e,"bottom")),o=filterDynamicPositionByAxis(e,"x"),t=filterDynamicPositionByAxis(e,"y");return{fullSize:i,leftAndTop:a.concat(r),rightAndBottom:s.concat(t).concat(n).concat(o),chartArea:filterByPosition(e,"chartArea"),vertical:a.concat(s).concat(t),horizontal:r.concat(n).concat(o)}}function getCombinedMax(t,e,i,a){return Math.max(t[i],e[i])+Math.max(t[a],e[a])}function updateMaxPadding(t,e){t.top=Math.max(t.top,e.top),t.left=Math.max(t.left,e.left),t.bottom=Math.max(t.bottom,e.bottom),t.right=Math.max(t.right,e.right)}function updateDims(t,e,i,a){const{pos:s,box:r}=i;var n=t.maxPadding;if(!isObject(s)){i.size&&(t[s]-=i.size);const l=a[i.stack]||{size:0,count:1};l.size=Math.max(l.size,i.horizontal?r.height:r.width),i.size=l.size/l.count,t[s]+=i.size}r.getPadding&&updateMaxPadding(n,r.getPadding());var o=Math.max(0,e.outerWidth-getCombinedMax(n,t,"left","right")),a=Math.max(0,e.outerHeight-getCombinedMax(n,t,"top","bottom")),e=o!==t.w,n=a!==t.h;return t.w=o,t.h=a,i.horizontal?{same:e,other:n}:{same:n,other:e}}function handleMaxPadding(i){const a=i.maxPadding;function t(t){var e=Math.max(a[t]-i[t],0);return i[t]+=e,e}i.y+=t("top"),i.x+=t("left"),t("right"),t("bottom")}function getMargins(t,i){const a=i.maxPadding;function e(t){const e={left:0,top:0,right:0,bottom:0};return t.forEach(t=>{e[t]=Math.max(i[t],a[t])}),e}return e(t?["left","right"]:["top","bottom"])}function fitBoxes(t,e,i,a){const s=[];let r,n,o,l,h,d;for(r=0,n=t.length,h=0;r{"function"==typeof t.beforeLayout&&t.beforeLayout()});var h=d.reduce((t,e)=>e.box.options&&!1===e.box.options.display?t:t+1,0)||1,e=Object.freeze({outerWidth:t,outerHeight:e,padding:s,availableWidth:r,availableHeight:n,vBoxMaxWidth:r/2/h,hBoxMaxHeight:n/2}),h=Object.assign({},s);updateMaxPadding(h,toPadding(a));const c=Object.assign({maxPadding:h,w:r,h:n,x:s.left,y:s.top},s);s=setLayoutDims(d.concat(l),e);fitBoxes(o.fullSize,c,e,s),fitBoxes(d,c,e,s),fitBoxes(l,c,e,s)&&fitBoxes(d,c,e,s),handleMaxPadding(c),placeBoxes(o.leftAndTop,c,e,s),c.x+=c.w,c.y+=c.h,placeBoxes(o.rightAndBottom,c,e,s),i.chartArea={left:c.left,top:c.top,right:c.left+c.w,bottom:c.top+c.h,height:c.h,width:c.w},each(o.chartArea,t=>{const e=t.box;Object.assign(e,i.chartArea),e.update(c.w,c.h,{left:0,top:0,right:0,bottom:0})})}}};class BasePlatform{acquireContext(t,e){}releaseContext(t){return!1}addEventListener(t,e,i){}removeEventListener(t,e,i){}getDevicePixelRatio(){return 1}getMaximumSize(t,e,i,a){return e=Math.max(0,e||t.width),i=i||t.height,{width:e,height:Math.max(0,a?Math.floor(e/a):i)}}isAttached(t){return!0}updateConfig(t){}}class BasicPlatform extends BasePlatform{acquireContext(t){return t&&t.getContext&&t.getContext("2d")||null}updateConfig(t){t.options.animation=!1}}const EXPANDO_KEY="$chartjs",EVENT_TYPES={touchstart:"mousedown",touchmove:"mousemove",touchend:"mouseup",pointerenter:"mouseenter",pointerdown:"mousedown",pointermove:"mousemove",pointerup:"mouseup",pointerleave:"mouseout",pointerout:"mouseout"},isNullOrEmpty=t=>null===t||""===t;function initCanvas(t,e){const i=t.style;var a=t.getAttribute("height"),s=t.getAttribute("width");return t[EXPANDO_KEY]={initial:{height:a,width:s,style:{display:i.display,height:i.height,width:i.width}}},i.display=i.display||"block",i.boxSizing=i.boxSizing||"border-box",!isNullOrEmpty(s)||void 0!==(s=readUsedSize(t,"width"))&&(t.width=s),isNullOrEmpty(a)&&(""===t.style.height?t.height=t.width/(e||2):void 0!==(e=readUsedSize(t,"height"))&&(t.height=e)),t}const eventListenerOptions=!!supportsEventListenerOptions&&{passive:!0};function addListener(t,e,i){t.addEventListener(e,i,eventListenerOptions)}function removeListener(t,e,i){t.canvas.removeEventListener(e,i,eventListenerOptions)}function fromNativeEvent(t,e){var i=EVENT_TYPES[t.type]||t.type,{x:a,y:s}=getRelativePosition$1(t,e);return{type:i,chart:e,native:t,x:void 0!==a?a:null,y:void 0!==s?s:null}}function nodeListContains(t,e){for(const i of t)if(i===e||i.contains(e))return!0}function createAttachObserver(t,e,a){const s=t.canvas,i=new MutationObserver(t=>{let e=!1;for(const i of t)e=e||nodeListContains(i.addedNodes,s),e=e&&!nodeListContains(i.removedNodes,s);e&&a()});return i.observe(document,{childList:!0,subtree:!0}),i}function createDetachObserver(t,e,a){const s=t.canvas,i=new MutationObserver(t=>{let e=!1;for(const i of t)e=e||nodeListContains(i.removedNodes,s),e=e&&!nodeListContains(i.addedNodes,s);e&&a()});return i.observe(document,{childList:!0,subtree:!0}),i}const drpListeningCharts=new Map;let oldDevicePixelRatio=0;function onWindowResize(){const i=window.devicePixelRatio;i!==oldDevicePixelRatio&&(oldDevicePixelRatio=i,drpListeningCharts.forEach((t,e)=>{e.currentDevicePixelRatio!==i&&t()}))}function listenDevicePixelRatioChanges(t,e){drpListeningCharts.size||window.addEventListener("resize",onWindowResize),drpListeningCharts.set(t,e)}function unlistenDevicePixelRatioChanges(t){drpListeningCharts.delete(t),drpListeningCharts.size||window.removeEventListener("resize",onWindowResize)}function createResizeObserver(t,e,a){var i=t.canvas;const s=i&&_getParentNode(i);if(s){const r=throttled((t,e)=>{var i=s.clientWidth;a(t,e),i{var e=t[0],t=e.contentRect.width,e=e.contentRect.height;0===t&&0===e||r(t,e)});return n.observe(s),listenDevicePixelRatioChanges(t,r),n}}function releaseObserver(t,e,i){i&&i.disconnect(),"resize"===e&&unlistenDevicePixelRatioChanges(t)}function createProxyAndListen(e,t,i){var a=e.canvas,s=throttled(t=>{null!==e.ctx&&i(fromNativeEvent(t,e))},e,t=>{t=t[0];return[t,t.offsetX,t.offsetY]});return addListener(a,t,s),s}class DomPlatform extends BasePlatform{acquireContext(t,e){var i=t&&t.getContext&&t.getContext("2d");return i&&i.canvas===t?(initCanvas(t,e),i):null}releaseContext(t){const i=t.canvas;if(!i[EXPANDO_KEY])return!1;const a=i[EXPANDO_KEY].initial;["height","width"].forEach(t=>{var e=a[t];isNullOrUndef(e)?i.removeAttribute(t):i.setAttribute(t,e)});const e=a.style||{};return Object.keys(e).forEach(t=>{i.style[t]=e[t]}),i.width=i.width,delete i[EXPANDO_KEY],!0}addEventListener(t,e,i){this.removeEventListener(t,e);const a=t.$proxies||(t.$proxies={});const s={attach:createAttachObserver,detach:createDetachObserver,resize:createResizeObserver}[e]||createProxyAndListen;a[e]=s(t,e,i)}removeEventListener(t,e){const i=t.$proxies||(t.$proxies={});var a=i[e];if(a){const s={attach:releaseObserver,detach:releaseObserver,resize:releaseObserver}[e]||removeListener;s(t,e,a),i[e]=void 0}}getDevicePixelRatio(){return window.devicePixelRatio}getMaximumSize(t,e,i,a){return getMaximumSize(t,e,i,a)}isAttached(t){t=_getParentNode(t);return!(!t||!t.isConnected)}}function _detectPlatform(t){return!_isDomSupported()||"undefined"!=typeof OffscreenCanvas&&t instanceof OffscreenCanvas?BasicPlatform:DomPlatform}class Element{constructor(){this.x=void 0,this.y=void 0,this.active=!1,this.options=void 0,this.$animations=void 0}tooltipPosition(t){var{x:e,y:t}=this.getProps(["x","y"],t);return{x:e,y:t}}hasValue(){return isNumber(this.x)&&isNumber(this.y)}getProps(t,e){const i=this.$animations;if(!e||!i)return this;const a={};return t.forEach(t=>{a[t]=i[t]&&i[t].active()?i[t]._to:this[t]}),a}}Element.defaults={},Element.defaultRoutes=void 0;const formatters={values(t){return isArray(t)?t:""+t},numeric(t,e,i){if(0===t)return"0";var a,s=this.chart.options.locale;let r,n=t;1e.lineWidth,tickColor:(t,e)=>e.color,offset:!1,borderDash:[],borderDashOffset:0,borderWidth:1},title:{display:!1,text:"",padding:{top:4,bottom:4}},ticks:{minRotation:0,maxRotation:50,mirror:!1,textStrokeWidth:0,textStrokeColor:"",padding:3,display:!0,autoSkip:!0,autoSkipPadding:3,labelOffset:0,callback:Ticks.formatters.values,minor:{},major:{},align:"center",crossAlign:"near",showLabelBackdrop:!1,backdropColor:"rgba(255, 255, 255, 0.75)",backdropPadding:2}}),defaults.route("scale.ticks","color","","color"),defaults.route("scale.grid","color","","borderColor"),defaults.route("scale.grid","borderColor","","borderColor"),defaults.route("scale.title","color","","color"),defaults.describe("scale",{_fallback:!1,_scriptable:t=>!t.startsWith("before")&&!t.startsWith("after")&&"callback"!==t&&"parser"!==t,_indexable:t=>"borderDash"!==t&&"tickBorderDash"!==t}),defaults.describe("scales",{_fallback:"scale"}),defaults.describe("scale.ticks",{_scriptable:t=>"backdropPadding"!==t&&"callback"!==t,_indexable:t=>"backdropPadding"!==t});const reverseAlign=t=>"left"===t?"right":"right"===t?"left":t,offsetFromEdge=(t,e,i)=>"top"===e||"left"===e?t[e]+i:t[e]-i;function sample(t,e){const i=[];var a=t.length/e,s=t.length;let r=0;for(;rn+1e-6)))return o}function garbageCollect(t,s){each(t,t=>{const e=t.gc;var i=e.length/2;let a;if(ss?s:a,s=r&&a>s?a:s,{min:finiteOrDefault(a,finiteOrDefault(s,a)),max:finiteOrDefault(s,finiteOrDefault(a,s))}}getPadding(){return{left:this.paddingLeft||0,top:this.paddingTop||0,right:this.paddingRight||0,bottom:this.paddingBottom||0}}getTicks(){return this.ticks}getLabels(){var t=this.chart.data;return this.options.labels||(this.isHorizontal()?t.xLabels:t.yLabels)||t.labels||[]}beforeLayout(){this._cache={},this._dataLimitsCached=!1}beforeUpdate(){callback(this.options.beforeUpdate,[this])}update(t,e,i){var{beginAtZero:a,grace:s,ticks:r}=this.options,n=r.sampleSize;this.beforeUpdate(),this.maxWidth=t,this.maxHeight=e,this._margins=i=Object.assign({left:0,right:0,top:0,bottom:0},i),this.ticks=null,this._labelSizes=null,this._gridLineItems=null,this._labelItems=null,this.beforeSetDimensions(),this.setDimensions(),this.afterSetDimensions(),this._maxLength=this.isHorizontal()?this.width+i.left+i.right:this.height+i.top+i.bottom,this._dataLimitsCached||(this.beforeDataLimits(),this.determineDataLimits(),this.afterDataLimits(),this._range=_addGrace(this,s,a),this._dataLimitsCached=!0),this.beforeBuildTicks(),this.ticks=this.buildTicks()||[],this.afterBuildTicks();a=n({width:s[t]||0,height:r[t]||0});return{first:y(0),last:y(e-1),widest:y(b),highest:y(_),widths:s,heights:r}}getLabelForValue(t){return t}getPixelForValue(t,e){return NaN}getValueForPixel(t){}getPixelForTick(t){var e=this.ticks;return t<0||t>e.length-1?null:this.getPixelForValue(e[t].value)}getPixelForDecimal(t){this._reversePixels&&(t=1-t);t=this._startPixel+t*this._length;return _int16Range(this._alignToPixels?_alignPixel(this.chart,t,0):t)}getDecimalForPixel(t){t=(t-this._startPixel)/this._length;return this._reversePixels?1-t:t}getBasePixel(){return this.getPixelForValue(this.getBaseValue())}getBaseValue(){var{min:t,max:e}=this;return t<0&&e<0?e:0t.value===e);return 0<=a?t.setContext(this.getContext(a)).lineWidth:0}drawGrid(t){var e=this.options.grid;const a=this.ctx;var i=this._gridLineItems||(this._gridLineItems=this._computeGridLineItems(t));let s,r;var n=(t,e,i)=>{i.width&&i.color&&(a.save(),a.lineWidth=i.width,a.strokeStyle=i.color,a.setLineDash(i.borderDash||[]),a.lineDashOffset=i.borderDashOffset,a.beginPath(),a.moveTo(t.x,t.y),a.lineTo(e.x,e.y),a.stroke(),a.restore())};if(e.display)for(s=0,r=i.length;s{this.drawBackground(),this.drawGrid(t),this.drawTitle()}},{z:t+1,draw:()=>{this.drawBorder()}},{z:e,draw:t=>{this.drawLabels(t)}}]:[{z:e,draw:t=>{this.draw(t)}}]}getMatchingVisibleMetas(t){var e=this.chart.getSortedVisibleDatasetMetas(),i=this.axis+"AxisID";const a=[];let s,r;for(s=0,r=e.length;s{const e=t.split(".");var i=e.pop(),a=[n].concat(e).join(".");const s=o[t].split(".");var r=s.pop(),t=s.join(".");defaults.route(a,i,t,r)})}function isIChartComponent(t){return"id"in t&&"defaults"in t}class Registry{constructor(){this.controllers=new TypedRegistry(DatasetController,"datasets",!0),this.elements=new TypedRegistry(Element,"elements"),this.plugins=new TypedRegistry(Object,"plugins"),this.scales=new TypedRegistry(Scale,"scales"),this._typedRegistries=[this.controllers,this.scales,this.elements]}add(...t){this._each("register",t)}remove(...t){this._each("unregister",t)}addControllers(...t){this._each("register",t,this.controllers)}addElements(...t){this._each("register",t,this.elements)}addPlugins(...t){this._each("register",t,this.plugins)}addScales(...t){this._each("register",t,this.scales)}getController(t){return this._get(t,this.controllers,"controller")}getElement(t){return this._get(t,this.elements,"element")}getPlugin(t){return this._get(t,this.plugins,"plugin")}getScale(t){return this._get(t,this.scales,"scale")}removeControllers(...t){this._each("unregister",t,this.controllers)}removeElements(...t){this._each("unregister",t,this.elements)}removePlugins(...t){this._each("unregister",t,this.plugins)}removeScales(...t){this._each("unregister",t,this.scales)}_each(i,t,a){[...t].forEach(t=>{const e=a||this._getRegistryForType(t);a||e.isForType(t)||e===this.plugins&&t.id?this._exec(i,e,t):each(t,t=>{var e=a||this._getRegistryForType(t);this._exec(i,e,t)})})}_exec(t,e,i){var a=_capitalize(t);callback(i["before"+a],[],i),e[t](i),callback(i["after"+a],[],i)}_getRegistryForType(e){for(let t=0;tt.filter(e=>!i.some(t=>e.plugin.id===t.plugin.id));this._notify(a(e,i),t,"stop"),this._notify(a(i,e),t,"start")}}function allPlugins(t){const e=[];var i=Object.keys(registry.plugins.items);for(let t=0;t{var e=n[t];if(!isObject(e))return console.error(`Invalid scale configuration for scale: ${t}`);if(e._proxy)return console.warn(`Ignoring resolver passed as options for scale: ${t}`);var i=determineAxis(t,e),a=getDefaultScaleIDFromAxis(i,o),s=r.scales||{};l[i]=l[i]||t,h[t]=mergeIf(Object.create(null),[{axis:i},e,s[i],s[a]])}),e.data.datasets.forEach(a=>{var t=a.type||e.type;const s=a.indexAxis||getIndexAxis(t,i),r=(overrides[t]||{}).scales||{};Object.keys(r).forEach(t=>{var e=getAxisFromDefaultScaleID(t,s),i=a[e+"AxisID"]||l[e]||e;h[i]=h[i]||Object.create(null),mergeIf(h[i],[{axis:e},n[i],r[t]])})}),Object.keys(h).forEach(t=>{t=h[t];mergeIf(t,[defaults.scales[t.type],defaults.scale])}),h}function initOptions(t){const e=t.options||(t.options={});e.plugins=valueOrDefault(e.plugins,{}),e.scales=mergeScaleConfig(t,e)}function initData(t){return(t=t||{}).datasets=t.datasets||[],t.labels=t.labels||[],t}function initConfig(t){return(t=t||{}).data=initData(t.data),initOptions(t),t}const keyCache=new Map,keysCached=new Set;function cachedKeys(t,e){let i=keyCache.get(t);return i||(i=e(),keyCache.set(t,i),keysCached.add(i)),i}const addIfFound=(t,e,i)=>{i=resolveObjectKey(e,i);void 0!==i&&t.add(i)};class Config{constructor(t){this._config=initConfig(t),this._scopeCache=new Map,this._resolverCache=new Map}get platform(){return this._config.platform}get type(){return this._config.type}set type(t){this._config.type=t}get data(){return this._config.data}set data(t){this._config.data=initData(t)}get options(){return this._config.options}set options(t){this._config.options=t}get plugins(){return this._config.plugins}update(){var t=this._config;this.clearCache(),initOptions(t)}clearCache(){this._scopeCache.clear(),this._resolverCache.clear()}datasetScopeKeys(t){return cachedKeys(t,()=>[[`datasets.${t}`,""]])}datasetAnimationScopeKeys(t,e){return cachedKeys(`${t}.transition.${e}`,()=>[[`datasets.${t}.transitions.${e}`,`transitions.${e}`],[`datasets.${t}`,""]])}datasetElementScopeKeys(t,e){return cachedKeys(`${t}-${e}`,()=>[[`datasets.${t}.elements.${e}`,`datasets.${t}`,`elements.${e}`,""]])}pluginScopeKeys(t){const e=t.id;return cachedKeys(`${this.type}-plugin-${e}`,()=>[[`plugins.${e}`,...t.additionalOptionScopes||[]]])}_cachedScopes(t,e){const i=this._scopeCache;let a=i.get(t);return a&&!e||(a=new Map,i.set(t,a)),a}getOptionScopes(e,t,i){const{options:a,type:s}=this,r=this._cachedScopes(e,i);i=r.get(t);if(i)return i;const n=new Set;t.forEach(t=>{e&&(n.add(e),t.forEach(t=>addIfFound(n,e,t))),t.forEach(t=>addIfFound(n,a,t)),t.forEach(t=>addIfFound(n,overrides[s]||{},t)),t.forEach(t=>addIfFound(n,defaults,t)),t.forEach(t=>addIfFound(n,descriptors,t))});const o=Array.from(n);return 0===o.length&&o.push(Object.create(null)),keysCached.has(t)&&r.set(t,o),o}chartOptionScopes(){var{options:t,type:e}=this;return[t,overrides[e]||{},defaults.datasets[e]||{},{type:e},defaults,descriptors]}resolveNamedOptions(t,e,i,a=[""]){const s={$shared:!0};var{resolver:r,subPrefixes:a}=getResolver(this._resolverCache,t,a);let n=r;needContext(r,e)&&(s.$shared=!1,i=isFunction(i)?i():i,a=this.createResolver(t,i,a),n=_attachContext(r,i,a));for(const o of e)s[o]=n[o];return s}createResolver(t,e,i=[""],a){var i=getResolver(this._resolverCache,t,i)["resolver"];return isObject(e)?_attachContext(i,e,void 0,a):i}}function getResolver(t,e,i){let a=t.get(e);a||(a=new Map,t.set(e,a));t=i.join();let s=a.get(t);return s||(e=_createResolver(e,i),s={resolver:e,subPrefixes:i.filter(t=>!t.toLowerCase().includes("hover"))},a.set(t,s)),s}const hasFunction=i=>isObject(i)&&Object.getOwnPropertyNames(i).reduce((t,e)=>t||isFunction(i[e]),!1);function needContext(t,e){const{isScriptable:i,isIndexable:a}=_descriptors(t);for(const o of e){var s=i(o),r=a(o),n=(r||s)&&t[o];if(s&&(isFunction(n)||hasFunction(n))||r&&isArray(n))return!0}return!1}var version="3.7.0";const KNOWN_POSITIONS=["top","bottom","left","right","chartArea"];function positionIsHorizontal(t,e){return"top"===t||"bottom"===t||-1===KNOWN_POSITIONS.indexOf(t)&&"x"===e}function compare2Level(i,a){return function(t,e){return t[i]===e[i]?t[a]-e[a]:t[i]-e[i]}}function onAnimationsComplete(t){const e=t.chart;var i=e.options.animation;e.notifyPlugins("afterRender"),callback(i&&i.onComplete,[t],e)}function onAnimationProgress(t){var e=t.chart,i=e.options.animation;callback(i&&i.onProgress,[t],e)}function getCanvas(t){return _isDomSupported()&&"string"==typeof t?t=document.getElementById(t):t&&t.length&&(t=t[0]),t=t&&t.canvas?t.canvas:t}const instances={},getChart=t=>{const e=getCanvas(t);return Object.values(instances).filter(t=>t.canvas===e).pop()};function moveNumericKeys(t,e,i){for(const r of Object.keys(t)){var a,s=+r;e<=s&&(a=t[r],delete t[r],(0this.update(t),r.resizeDelay||0),this._dataChanges=[],instances[this.id]=this,e&&t?(animator.listen(this,"complete",onAnimationsComplete),animator.listen(this,"progress",onAnimationProgress),this._initialize(),this.attached&&this.update()):console.error("Failed to create chart: can't acquire context from the given item")}get aspectRatio(){var{options:{aspectRatio:t,maintainAspectRatio:e},width:i,height:a,_aspectRatio:s}=this;return isNullOrUndef(t)?e&&s?s:a?i/a:null:t}get data(){return this.config.data}set data(t){this.config.data=t}get options(){return this._options}set options(t){this.config.options=t}_initialize(){return this.notifyPlugins("beforeInit"),this.options.responsive?this.resize():retinaScale(this,this.options.devicePixelRatio),this.bindEvents(),this.notifyPlugins("afterInit"),this}clear(){return clearCanvas(this.canvas,this.ctx),this}stop(){return animator.stop(this),this}resize(t,e){animator.running(this)?this._resizeBeforeDraw={width:t,height:e}:this._resize(t,e)}_resize(t,e){var i=this.options,a=this.canvas,s=i.maintainAspectRatio&&this.aspectRatio,t=this.platform.getMaximumSize(a,t,e,s),e=i.devicePixelRatio||this.platform.getDevicePixelRatio(),s=this.width?"resize":"attach";this.width=t.width,this.height=t.height,this._aspectRatio=this.aspectRatio,retinaScale(this,e,!0)&&(this.notifyPlugins("resize",{size:t}),callback(i.onResize,[this,t],this),this.attached&&this._doResize(s)&&this.render())}ensureScalesHaveIDs(){var t=this.options.scales||{};each(t,(t,e)=>{t.id=e})}buildOrUpdateScales(){const o=this.options,a=o.scales,l=this.scales,h=Object.keys(l).reduce((t,e)=>(t[e]=!1,t),{});let t=[];a&&(t=t.concat(Object.keys(a).map(t=>{var e=a[t],i=determineAxis(t,e),t="r"===i,i="x"===i;return{options:e,dposition:t?"chartArea":i?"bottom":"left",dtype:t?"radialLinear":i?"category":"linear"}}))),each(t,t=>{const e=t.options;var i=e.id,a=determineAxis(i,e),s=valueOrDefault(e.type,t.dtype);void 0!==e.position&&positionIsHorizontal(e.position,a)===positionIsHorizontal(t.dposition)||(e.position=t.dposition),h[i]=!0;let r=null;if(i in l&&l[i].type===s)r=l[i];else{const n=registry.getScale(s);r=new n({id:i,type:s,ctx:this.ctx,chart:this}),l[r.id]=r}r.init(e,o)}),each(h,(t,e)=>{t||delete l[e]}),each(l,t=>{layouts.configure(this,t,t.options),layouts.addBox(this,t)})}_updateMetasets(){const t=this._metasets;var e=this.data.datasets.length,i=t.length;if(t.sort((t,e)=>t.index-e.index),ei.length&&delete this._stacks,t.forEach((e,t)=>{0===i.filter(t=>t===e._dataset).length&&this._destroyDatasetMeta(t)})}buildOrUpdateControllers(){const e=[];var i=this.data.datasets;let a,t;for(this._removeUnreferencedMetasets(),a=0,t=i.length;a{this.getDatasetMeta(e).controller.reset()},this)}reset(){this._resetElements(),this.notifyPlugins("reset")}update(t){const e=this.config;e.update();var a=this._options=e.createResolver(e.chartOptionScopes(),this.getContext()),s=this._animationsDisabled=!a.animation;if(this._updateScales(),this._checkEventBindings(),this._updateHiddenIndices(),this._plugins.invalidate(),!1!==this.notifyPlugins("beforeUpdate",{mode:t,cancelable:!0})){const n=this.buildOrUpdateControllers();this.notifyPlugins("beforeElementsUpdate");let i=0;for(let t=0,e=this.data.datasets.length;t{t.reset()}),this._updateDatasets(t),this.notifyPlugins("afterUpdate",{mode:t}),this._layers.sort(compare2Level("z","_idx"));var{_active:a,_lastEvent:t}=this;t?this._eventHandler(t,!0):a.length&&this._updateHoverStyles(a,a,!0),this.render()}}_updateScales(){each(this.scales,t=>{layouts.removeBox(this,t)}),this.ensureScalesHaveIDs(),this.buildOrUpdateScales()}_checkEventBindings(){var t=this.options,e=new Set(Object.keys(this._listeners)),i=new Set(t.events);setsEqual(e,i)&&!!this._responsiveListeners===t.responsive||(this.unbindEvents(),this.bindEvents())}_updateHiddenIndices(){var t,e,i,a=this["_hiddenIndices"];for({method:t,start:e,count:i}of this._getUniformDataChanges()||[]){var s="_removeElements"===t?-i:i;moveNumericKeys(a,e,s)}}_getUniformDataChanges(){const t=this._dataChanges;if(t&&t.length){this._dataChanges=[];var e=this.data.datasets.length,i=e=>new Set(t.filter(t=>t[0]===e).map((t,e)=>e+","+t.splice(1).join(","))),a=i(0);for(let t=1;tt.split(",")).map(t=>({method:t[1],start:+t[2],count:+t[3]}))}}_updateLayout(t){if(!1!==this.notifyPlugins("beforeLayout",{cancelable:!0})){layouts.update(this,this.width,this.height,t);t=this.chartArea;const e=t.width<=0||t.height<=0;this._layers=[],each(this.boxes,t=>{e&&"chartArea"===t.position||(t.configure&&t.configure(),this._layers.push(...t._layers()))},this),this._layers.forEach((t,e)=>{t._idx=e}),this.notifyPlugins("afterLayout")}}_updateDatasets(i){if(!1!==this.notifyPlugins("beforeDatasetsUpdate",{mode:i,cancelable:!0})){for(let t=0,e=this.data.datasets.length;tt&&t._dataset===e).pop();return a||(a={type:null,data:[],dataset:null,controller:null,hidden:null,xAxisID:null,yAxisID:null,order:e&&e.order||0,index:t,_dataset:e,_parsed:[],_sorted:!1},i.push(a)),a}getContext(){return this.$context||(this.$context=createContext(null,{chart:this,type:"chart"}))}getVisibleDatasetCount(){return this.getSortedVisibleDatasetMetas().length}isDatasetVisible(t){var e=this.data.datasets[t];if(!e)return!1;t=this.getDatasetMeta(t);return"boolean"==typeof t.hidden?!t.hidden:!e.hidden}setDatasetVisibility(t,e){const i=this.getDatasetMeta(t);i.hidden=!e}toggleDataVisibility(t){this._hiddenIndices[t]=!this._hiddenIndices[t]}getDataVisibility(t){return!this._hiddenIndices[t]}_updateVisibility(e,t,i){const a=i?"show":"hide",s=this.getDatasetMeta(e),r=s.controller._resolveAnimations(void 0,a);defined(t)?(s.data[t].hidden=!i,this.update()):(this.setDatasetVisibility(e,i),r.update(s,{visible:i}),this.update(t=>t.datasetIndex===e?a:void 0))}hide(t,e){this._updateVisibility(t,e,!1)}show(t,e){this._updateVisibility(t,e,!0)}_destroyDatasetMeta(t){const e=this._metasets[t];e&&e.controller&&e.controller._destroy(),delete this._metasets[t]}_stop(){let t,e;for(this.stop(),animator.remove(this),t=0,e=this.data.datasets.length;t{a.addEventListener(this,t,e),i[t]=e},s=(t,e,i)=>{t.offsetX=e,t.offsetY=i,this._eventHandler(t)};each(this.options.events,t=>e(t,s))}bindResponsiveEvents(){this._responsiveListeners||(this._responsiveListeners={});const i=this._responsiveListeners,a=this.platform,t=(t,e)=>{a.addEventListener(this,t,e),i[t]=e},e=(t,e)=>{i[t]&&(a.removeEventListener(this,t,e),delete i[t])},s=(t,e)=>{this.canvas&&this.resize(t,e)};let r;const n=()=>{e("attach",n),this.attached=!0,this.resize(),t("resize",s),t("detach",r)};r=()=>{this.attached=!1,e("resize",s),this._stop(),this._resize(0,0),t("attach",n)},(a.isAttached(this.canvas)?n:r)()}unbindEvents(){each(this._listeners,(t,e)=>{this.platform.removeEventListener(this,e,t)}),this._listeners={},each(this._responsiveListeners,(t,e)=>{this.platform.removeEventListener(this,e,t)}),this._responsiveListeners=void 0}updateHoverStyle(t,e,i){var a=i?"set":"remove";let s,r,n,o;for("dataset"===e&&(s=this.getDatasetMeta(t[0].datasetIndex),s.controller["_"+a+"DatasetHoverStyle"]()),n=0,o=t.length;n{var i=this.getDatasetMeta(t);if(!i)throw new Error("No dataset found at index "+t);return{datasetIndex:t,element:i.data[e],index:e}});_elementsEqual(t,e)||(this._active=t,this._lastEvent=null,this._updateHoverStyles(t,e))}notifyPlugins(t,e,i){return this._plugins.notify(this,t,e,i)}_updateHoverStyles(t,e,i){var a=this.options.hover,s=(t,i)=>t.filter(e=>!i.some(t=>e.datasetIndex===t.datasetIndex&&e.index===t.index)),r=s(e,t),e=i?t:s(t,e);r.length&&this.updateHoverStyle(r,a.mode,!1),e.length&&a.mode&&this.updateHoverStyle(e,a.mode,!0)}_eventHandler(e,t){const i={event:e,replay:t,cancelable:!0,inChartArea:_isPointInArea(e,this.chartArea,this._minPadding)};var a=t=>(t.options.events||this.options.events).includes(e.native.type);if(!1!==this.notifyPlugins("beforeEvent",i,a)){t=this._handleEvent(e,t,i.inChartArea);return i.cancelable=!1,this.notifyPlugins("afterEvent",i,a),(t||i.changed)&&this.render(),this}}_handleEvent(t,e,i){var{_active:a=[],options:s}=this,r=this._getActiveElements(t,a,i,e),n=_isClickEvent(t),o=determineLastEvent(t,this._lastEvent,i,n);i&&(this._lastEvent=null,callback(s.onHover,[t,r,this],this),n&&callback(s.onClick,[t,r,this],this));t=!_elementsEqual(r,a);return(t||e)&&(this._active=r,this._updateHoverStyles(r,a,e)),this._lastEvent=o,t}_getActiveElements(t,e,i,a){if("mouseout"===t.type)return[];if(!i)return e;e=this.options.hover;return this.getElementsAtEventForMode(t,e.mode,e,a)}}const invalidatePlugins=()=>each(Chart.instances,t=>t._plugins.invalidate()),enumerable=!0;function clipArc(t,e,i){var{startAngle:a,pixelMargin:s,x:r,y:n,outerRadius:o,innerRadius:l}=e,e=s/o;t.beginPath(),t.arc(r,n,o,a-e,i+e),s{var e=(i-Math.min(r,t))*a/2;return _limitValue(t,0,Math.min(r,e))};return{outerStart:e(s.outerStart),outerEnd:e(s.outerEnd),innerStart:_limitValue(s.innerStart,0,t),innerEnd:_limitValue(s.innerEnd,0,t)}}function rThetaToXY(t,e,i,a){return{x:i+t*Math.cos(e),y:a+t*Math.sin(e)}}function pathArc(t,e,i,a,s){var{x:r,y:n,startAngle:o,pixelMargin:l,innerRadius:h}=e,d=Math.max(e.outerRadius+a+i-l,0),c=0{registry.add(...t),invalidatePlugins()}},unregister:{enumerable:enumerable,value:(...t)=>{registry.remove(...t),invalidatePlugins()}}});class ArcElement extends Element{constructor(t){super(),this.options=void 0,this.circumference=void 0,this.startAngle=void 0,this.endAngle=void 0,this.innerRadius=void 0,this.outerRadius=void 0,this.pixelMargin=0,this.fullCircles=0,t&&Object.assign(this,t)}inRange(t,e,i){var a=this.getProps(["x","y"],i),{angle:s,distance:r}=getAngleFromPoint(a,{x:t,y:e}),{startAngle:n,endAngle:o,innerRadius:a,outerRadius:t,circumference:e}=this.getProps(["startAngle","endAngle","innerRadius","outerRadius","circumference"],i),i=this.options.spacing/2,o=valueOrDefault(e,o-n)>=TAU||_angleBetween(s,n,o),i=_isBetween(r,a+i,t+i);return o&&i}getCenterPoint(t){var{x:e,y:i,startAngle:a,endAngle:s,innerRadius:r,outerRadius:n}=this.getProps(["x","y","startAngle","endAngle","innerRadius","outerRadius","circumference"],t),{offset:o,spacing:t}=this.options,s=(a+s)/2,o=(r+n+t+o)/2;return{x:e+Math.cos(s)*o,y:i+Math.sin(s)*o}}tooltipPosition(t){return this.getCenterPoint(t)}draw(e){var{options:i,circumference:a}=this,s=(i.offset||0)/2,r=(i.spacing||0)/2;if(this.pixelMargin="inner"===i.borderAlign?.33:0,this.fullCircles=a>TAU?Math.floor(a/TAU):0,!(0===a||this.innerRadius<0||this.outerRadius<0)){e.save();let t=0;s&&(t=s/2,a=(this.startAngle+this.endAngle)/2,e.translate(Math.cos(a)*t,Math.sin(a)*t),this.circumference>=PI&&(t=s)),e.fillStyle=i.backgroundColor,e.strokeStyle=i.borderColor;i=drawArc(e,this,t,r);drawBorder(e,this,t,r,i),e.restore()}}}function setStyle(t,e,i=e){t.lineCap=valueOrDefault(i.borderCapStyle,e.borderCapStyle),t.setLineDash(valueOrDefault(i.borderDash,e.borderDash)),t.lineDashOffset=valueOrDefault(i.borderDashOffset,e.borderDashOffset),t.lineJoin=valueOrDefault(i.borderJoinStyle,e.borderJoinStyle),t.lineWidth=valueOrDefault(i.borderWidth,e.borderWidth),t.strokeStyle=valueOrDefault(i.borderColor,e.borderColor)}function lineTo(t,e,i){t.lineTo(i.x,i.y)}function getLineMethod(t){return t.stepped?_steppedLineTo:t.tension||"monotone"===t.cubicInterpolationMode?_bezierCurveTo:lineTo}function pathVars(t,e,i={}){var a=t.length,{start:s=0,end:r=a-1}=i,{start:n,end:o}=e,t=Math.max(s,n),i=Math.min(r,o);return{count:a,start:t,loop:e.loop,ilen:i(n+(h?o-t:t))%r,S=()=>{f!==m&&(t.lineTo(d,m),t.lineTo(d,f),t.lineTo(d,v))};for(l&&(g=s[y(0)],t.moveTo(g.x,g.y)),u=0;u<=o;++u)g=s[y(u)],g.skip||(x=g.x,b=g.y,(_=0|x)===p?(bm&&(m=b),d=(c*d+x)/++c):(S(),t.lineTo(x,b),p=_,c=0,f=m=b),v=b);S()}function _getSegmentMethod(t){var e=t.options,i=e.borderDash&&e.borderDash.length;return!(t._decimated||t._loop||e.tension||"monotone"===e.cubicInterpolationMode||e.stepped||i)?fastPathSegment:pathSegment}function _getInterpolationMethod(t){return t.stepped?_steppedInterpolation:t.tension||"monotone"===t.cubicInterpolationMode?_bezierInterpolation:_pointInLine}function strokePathWithCache(t,e,i,a){let s=e._path;s||(s=e._path=new Path2D,e.path(s,i,a)&&s.closePath()),setStyle(t,e.options),t.stroke(s)}function strokePathDirect(t,e,i,a){var{segments:s,options:r}=e;const n=_getSegmentMethod(e);for(const o of s)setStyle(t,r,o.style),t.beginPath(),n(t,e,o,{start:i,end:i+a-1})&&t.closePath(),t.stroke()}ArcElement.id="arc",ArcElement.defaults={borderAlign:"center",borderColor:"#fff",borderJoinStyle:void 0,borderRadius:0,borderWidth:2,offset:0,spacing:0,angle:void 0},ArcElement.defaultRoutes={backgroundColor:"backgroundColor"};const usePath2D="function"==typeof Path2D;function draw(t,e,i,a){(usePath2D&&!e.options.segment?strokePathWithCache:strokePathDirect)(t,e,i,a)}class LineElement extends Element{constructor(t){super(),this.animated=!0,this.options=void 0,this._chart=void 0,this._loop=void 0,this._fullLoop=void 0,this._path=void 0,this._points=void 0,this._segments=void 0,this._decimated=!1,this._pointsUpdated=!1,this._datasetIndex=void 0,t&&Object.assign(this,t)}updateControlPoints(t,e){var i,a=this.options;!a.tension&&"monotone"!==a.cubicInterpolationMode||a.stepped||this._pointsUpdated||(i=a.spanGaps?this._loop:this._fullLoop,_updateBezierControlPoints(this._points,a,t,i,e),this._pointsUpdated=!0)}set points(t){this._points=t,delete this._segments,delete this._path,this._pointsUpdated=!1}get points(){return this._points}get segments(){return this._segments||(this._segments=_computeSegments(this,this.options.segment))}first(){var t=this.segments,e=this.points;return t.length&&e[t[0].start]}last(){var t=this.segments,e=this.points,i=t.length;return i&&e[t[i-1].end]}interpolate(i,a){var s=this.options,r=i[a],n=this.points,o=_boundSegments(this,{property:a,start:r,end:r});if(o.length){const c=[],u=_getInterpolationMethod(s);let t,e;for(t=0,e=o.length;t"borderDash"!==t&&"fill"!==t};class PointElement extends Element{constructor(t){super(),this.options=void 0,this.parsed=void 0,this.skip=void 0,this.stop=void 0,t&&Object.assign(this,t)}inRange(t,e,i){var a=this.options,{x:s,y:i}=this.getProps(["x","y"],i);return Math.pow(t-s,2)+Math.pow(e-i,2)u&&(u=g,c=a[i],p=i);n[l++]=c,h=p}return n[l++]=a[t],n}function minMaxDecimation(t,e,i,a){let s=0,r=0,n,o,l,h,d,c,u,g,p,f;const m=[];var v=t[e].x,x=t[e+i-1].x-v;for(n=e;nf&&(f=h,u=n),s=(r*s+o.x)/++r):(b=n-1,isNullOrUndef(c)||isNullOrUndef(u)||(_=Math.min(c,u),y=Math.max(c,u),_!==g&&_!==b&&m.push({...t[_],x:s}),y!==g&&y!==b&&m.push({...t[y],x:s})),0{cleanDecimatedDataset(t)})}function getStartAndCountOfVisiblePointsSimplified(t,e){var i=e.length;let a=0,s;const r=t["iScale"];var{min:n,max:o,minDefined:l,maxDefined:t}=r.getUserBounds();return l&&(a=_limitValue(_lookupByKey(e,r.axis,n).lo,0,i-1)),s=t?_limitValue(_lookupByKey(e,r.axis,o).hi+1,a,i)-a:i-a,{start:a,count:s}}var plugin_decimation={id:"decimation",defaults:{algorithm:"min-max",enabled:!1},beforeElementsUpdate:(o,t,l)=>{if(l.enabled){const h=o.width;o.data.datasets.forEach((e,t)=>{var{_data:i,indexAxis:a}=e,t=o.getDatasetMeta(t),s=i||e.data;if("y"!==resolve([a,o.options.indexAxis])&&"line"===t.type){a=o.scales[t.xAxisID];if(("linear"===a.type||"time"===a.type)&&!o.options.parsing){var{start:r,count:n}=getStartAndCountOfVisiblePointsSimplified(t,s);if(n<=(l.threshold||4*h))cleanDecimatedDataset(e);else{isNullOrUndef(i)&&(e._data=s,delete e.data,Object.defineProperty(e,"data",{configurable:!0,enumerable:!0,get:function(){return this._decimated},set:function(t){this._data=t}}));let t;switch(l.algorithm){case"lttb":t=lttbDecimation(s,r,n,h,l);break;case"min-max":t=minMaxDecimation(s,r,n,h);break;default:throw new Error(`Unsupported decimation algorithm '${l.algorithm}'`)}e._decimated=t}}}})}else cleanDecimatedData(o)},destroy(t){cleanDecimatedData(t)}};function getLineByIndex(t,e){var i=t.getDatasetMeta(e);return i&&t.isDatasetVisible(e)?i.dataset:null}function parseFillOption(t){var e=t.options,t=e.fill;let i=valueOrDefault(t&&t.target,t);return void 0===i&&(i=!!e.backgroundColor),!1!==i&&null!==i&&(!0===i?"origin":i)}function decodeFill(t,e,i){t=parseFillOption(t);if(isObject(t))return!isNaN(t.value)&&t;let a=parseFloat(t);return isNumberFinite(a)&&Math.floor(a)===a?("-"!==t[0]&&"+"!==t[0]||(a=e+a),!(a===e||a<0||a>=i)&&a):0<=["origin","start","end","stack","shape"].indexOf(t)&&t}function computeLinearBoundary(t){const{scale:e={},fill:i}=t;let a=null;return"start"===i?a=e.bottom:"end"===i?a=e.top:isObject(i)?a=e.getPixelForValue(i.value):e.getBasePixel&&(a=e.getBasePixel()),isNumberFinite(a)?{x:(t=e.isHorizontal())?a:null,y:t?null:a}:null}class simpleArc{constructor(t){this.x=t.x,this.y=t.y,this.radius=t.radius}pathSegment(t,e,i){var{x:a,y:s,radius:r}=this;return e=e||{start:0,end:TAU},t.arc(a,s,r,e.end,e.start,!0),!i.bounds}interpolate(t){var{x:e,y:i,radius:a}=this,t=t.angle;return{x:e+Math.cos(t)*a,y:i+Math.sin(t)*a,angle:t}}}function computeCircularBoundary(t){const{scale:e,fill:i}=t;var a=e.options,s=e.getLabels().length;const r=[];var n=a.reverse?e.max:e.min,t=a.reverse?e.min:e.max;let o,l,h;if(h="start"===i?n:"end"===i?t:isObject(i)?i.value:e.getBaseValue(),a.grid.circular)return l=e.getPointPositionForValue(0,n),new simpleArc({x:l.x,y:l.y,radius:e.getDistanceFromCenterForValue(h)});for(o=0;o{e=findSegmentEnd(t,e,s);t=s[t],e=s[e];null!==a?(r.push({x:t.x,y:a}),r.push({x:e.x,y:a})):null!==i&&(r.push({x:i,y:t.y}),r.push({x:i,y:e.y}))}),r}function buildStackLine(t){var{scale:e,index:i,line:t}=t,a=[],s=t.segments,r=t.points;const n=getLinesBelow(e,i);n.push(createBoundaryLine({x:null,y:e.bottom},t));for(let t=0;t{let{boxHeight:i=e,boxWidth:a=e}=t;return t.usePointStyle&&(i=Math.min(i,e),a=Math.min(a,e)),{boxWidth:a,boxHeight:i,itemHeight:Math.max(e,i)}},itemsEqual=(t,e)=>null!==t&&null!==e&&t.datasetIndex===e.datasetIndex&&t.index===e.index;class Legend extends Element{constructor(t){super(),this._added=!1,this.legendHitBoxes=[],this._hoveredItem=null,this.doughnutMode=!1,this.chart=t.chart,this.options=t.options,this.ctx=t.ctx,this.legendItems=void 0,this.columnSizes=void 0,this.lineWidths=void 0,this.maxHeight=void 0,this.maxWidth=void 0,this.top=void 0,this.bottom=void 0,this.left=void 0,this.right=void 0,this.height=void 0,this.width=void 0,this._margins=void 0,this.position=void 0,this.weight=void 0,this.fullSize=void 0}update(t,e,i){this.maxWidth=t,this.maxHeight=e,this._margins=i,this.setDimensions(),this.buildLabels(),this.fit()}setDimensions(){this.isHorizontal()?(this.width=this.maxWidth,this.left=this._margins.left,this.right=this.width):(this.height=this.maxHeight,this.top=this._margins.top,this.bottom=this.height)}buildLabels(){const i=this.options.labels||{};let t=callback(i.generateLabels,[this.chart],this)||[];i.filter&&(t=t.filter(t=>i.filter(t,this.chart.data))),i.sort&&(t=t.sort((t,e)=>i.sort(t,e,this.chart.data))),this.options.reverse&&t.reverse(),this.legendItems=t}fit(){const{options:i,ctx:a}=this;if(i.display){var s=i.labels,r=toFont(s.font),n=r.size,o=this._computeTitleHeight(),{boxWidth:l,itemHeight:s}=getBoxSize(s,n);let t,e;a.font=r.string,this.isHorizontal()?(t=this.maxWidth,e=this._fitRows(o,n,l,s)+10):(e=this.maxHeight,t=this._fitCols(o,n,l,s)+10),this.width=Math.min(t,i.maxWidth||this.maxWidth),this.height=Math.min(e,i.maxHeight||this.maxHeight)}else this.width=this.height=0}_fitRows(t,i,a,s){const{ctx:r,maxWidth:n,options:{labels:{padding:o}}}=this,l=this.legendHitBoxes=[],h=this.lineWidths=[0],d=s+o;let c=t;r.textAlign="left",r.textBaseline="middle";let u=-1,g=-d;return this.legendItems.forEach((t,e)=>{t=a+i/2+r.measureText(t.text).width;(0===e||h[h.length-1]+t+2*o>n)&&(c+=d,h[h.length-(0{t=a+i/2+r.measureText(t.text).width;0h&&(d+=c+n,l.push({width:c,height:u}),g+=c+n,p++,c=u=0),o[e]={left:g,top:u,col:p,width:t,height:s},c=Math.max(c,t),u+=s+n}),d+=c,l.push({width:c,height:u}),d}adjustHitBoxes(){if(this.options.display){var i=this._computeTitleHeight(),{legendHitBoxes:a,options:{align:s,labels:{padding:r},rtl:t}}=this;const n=getRtlAdapter(t,this.left,this.width);if(this.isHorizontal()){let t=0,e=_alignStartEnd(s,this.left+r,this.right-this.lineWidths[t]);for(const o of a)t!==o.row&&(t=o.row,e=_alignStartEnd(s,this.left+r,this.right-this.lineWidths[t])),o.top+=this.top+i+r,o.left=n.leftForLtr(n.x(e),o.width),e+=o.width+r}else{let t=0,e=_alignStartEnd(s,this.top+i+r,this.bottom-this.columnSizes[t].height);for(const l of a)l.col!==t&&(t=l.col,e=_alignStartEnd(s,this.top+i+r,this.bottom-this.columnSizes[t].height)),l.top=e,l.left+=this.left+r,l.left=n.leftForLtr(n.x(l.left),l.width),e+=l.height+r}}}isHorizontal(){return"top"===this.options.position||"bottom"===this.options.position}draw(){var t;this.options.display&&(t=this.ctx,clipArea(t,this),this._draw(),unclipArea(t))}_draw(){const{options:u,columnSizes:g,lineWidths:p,ctx:f}=this,{align:m,labels:v}=u,x=defaults.color,b=getRtlAdapter(u.rtl,this.left,this.width),_=toFont(v.font),{color:y,padding:S}=v,k=_.size,M=k/2;let P;this.drawTitle(),f.textAlign=b.textAlign("left"),f.textBaseline="middle",f.lineWidth=.5,f.font=_.string;const{boxWidth:D,boxHeight:w,itemHeight:C}=getBoxSize(v,k),A=this.isHorizontal(),L=this._computeTitleHeight();P=A?{x:_alignStartEnd(m,this.left+S,this.right-p[0]),y:this.top+S+L,line:0}:{x:this.left+S,y:_alignStartEnd(m,this.top+L+S,this.bottom-g[0].height),line:0},overrideTextDirection(this.ctx,u.textDirection);const O=C+S;this.legendItems.forEach((t,e)=>{f.strokeStyle=t.fontColor||y,f.fillStyle=t.fontColor||y;var i=f.measureText(t.text).width,a=b.textAlign(t.textAlign||(t.textAlign=v.textAlign)),s=D+M+i;let r=P.x,n=P.y;b.setWidth(this.width),A?0this.right&&(n=P.y+=O,P.line++,r=P.x=_alignStartEnd(m,this.left+S,this.right-p[P.line])):0this.bottom&&(r=P.x=r+g[P.line].width+S,P.line++,n=P.y=_alignStartEnd(m,this.top+L+S,this.bottom-g[P.line].height));var o,l,h,d,c=b.x(r);o=c,l=n,h=t,isNaN(D)||D<=0||isNaN(w)||w<0||(f.save(),d=valueOrDefault(h.lineWidth,1),f.fillStyle=valueOrDefault(h.fillStyle,x),f.lineCap=valueOrDefault(h.lineCap,"butt"),f.lineDashOffset=valueOrDefault(h.lineDashOffset,0),f.lineJoin=valueOrDefault(h.lineJoin,"miter"),f.lineWidth=d,f.strokeStyle=valueOrDefault(h.strokeStyle,x),f.setLineDash(valueOrDefault(h.lineDash,[])),v.usePointStyle?(i={radius:D*Math.SQRT2/2,pointStyle:h.pointStyle,rotation:h.rotation,borderWidth:d},e=b.xPlus(o,D/2),c=l+M,drawPoint(f,i,e,c)):(l=l+Math.max((k-w)/2,0),o=b.leftForLtr(o,D),h=toTRBLCorners(h.borderRadius),f.beginPath(),Object.values(h).some(t=>0!==t)?addRoundedRectPath(f,{x:o,y:l,w:D,h:w,radius:h}):f.rect(o,l,D,w),f.fill(),0!==d&&f.stroke()),f.restore()),r=_textX(a,r+D+M,A?r+s:this.right,u.rtl),d=b.x(r),a=n,t=t,renderText(f,t.text,d,a+C/2,_,{strikethrough:t.hidden,textAlign:b.textAlign(t.textAlign)}),A?P.x+=s+S:P.y+=O}),restoreTextDirection(this.ctx,u.textDirection)}drawTitle(){var a=this.options,s=a.title,r=toFont(s.font),n=toPadding(s.padding);if(s.display){const h=getRtlAdapter(a.rtl,this.left,this.width),d=this.ctx;var o=s.position,l=r.size/2,n=n.top+l;let t,e=this.left,i=this.width;this.isHorizontal()?(i=Math.max(...this.lineWidths),t=this.top+n,e=_alignStartEnd(a.align,e,this.right-i)):(l=this.columnSizes.reduce((t,e)=>Math.max(t,e.height),0),t=n+_alignStartEnd(a.align,this.top,this.bottom-l-a.labels.padding-this._computeTitleHeight()));a=_alignStartEnd(o,e,e+i);d.textAlign=h.textAlign(_toLeftRightCenter(o)),d.textBaseline="middle",d.strokeStyle=s.color,d.fillStyle=s.color,d.font=r.string,renderText(d,s.text,a,t,r)}}_computeTitleHeight(){var t=this.options.title,e=toFont(t.font),i=toPadding(t.padding);return t.display?e.lineHeight+i.height:0}_getLegendItemAt(t,e){let i,a,s;if(_isBetween(t,this.left,this.right)&&_isBetween(e,this.top,this.bottom))for(s=this.legendHitBoxes,i=0;it.chart.options.color,boxWidth:40,padding:10,generateLabels(t){const a=t.data.datasets,{labels:{usePointStyle:s,pointStyle:r,textAlign:n,color:o}}=t.legend.options;return t._getSortedDatasetMetas().map(t=>{var e=t.controller.getStyle(s?0:void 0),i=toPadding(e.borderWidth);return{text:a[t.index].label,fillStyle:e.backgroundColor,fontColor:o,hidden:!t.visible,lineCap:e.borderCapStyle,lineDash:e.borderDash,lineDashOffset:e.borderDashOffset,lineJoin:e.borderJoinStyle,lineWidth:(i.width+i.height)/4,strokeStyle:e.borderColor,pointStyle:r||e.pointStyle,rotation:e.rotation,textAlign:n||e.textAlign,borderRadius:0,datasetIndex:t.index}},this)}},title:{color:t=>t.chart.options.color,display:!1,position:"center",text:""}},descriptors:{_scriptable:t=>!t.startsWith("on"),labels:{_scriptable:t=>!["generateLabels","filter","sort"].includes(t)}}};class Title extends Element{constructor(t){super(),this.chart=t.chart,this.options=t.options,this.ctx=t.ctx,this._padding=void 0,this.top=void 0,this.bottom=void 0,this.left=void 0,this.right=void 0,this.width=void 0,this.height=void 0,this.position=void 0,this.weight=void 0,this.fullSize=void 0}update(t,e){var i=this.options;this.left=0,this.top=0,i.display?(this.width=this.right=t,this.height=this.bottom=e,e=isArray(i.text)?i.text.length:1,this._padding=toPadding(i.padding),i=e*toFont(i.font).lineHeight+this._padding.height,this.isHorizontal()?this.height=i:this.width=i):this.width=this.height=this.right=this.bottom=0}isHorizontal(){var t=this.options.position;return"top"===t||"bottom"===t}_drawArgs(t){var{top:e,left:i,bottom:a,right:s,options:r}=this,n=r.align;let o=0,l,h,d;return l=this.isHorizontal()?(h=_alignStartEnd(n,i,s),d=e+t,s-i):(o="left"===r.position?(h=i+t,d=_alignStartEnd(n,a,e),-.5*PI):(h=s-t,d=_alignStartEnd(n,e,a),.5*PI),a-e),{titleX:h,titleY:d,maxWidth:l,rotation:o}}draw(){var t,e,i,a,s,r=this.ctx,n=this.options;n.display&&(s=(t=toFont(n.font)).lineHeight/2+this._padding.top,{titleX:e,titleY:i,maxWidth:a,rotation:s}=this._drawArgs(s),renderText(r,n.text,0,0,t,{color:n.color,maxWidth:a,rotation:s,textAlign:_toLeftRightCenter(n.align),textBaseline:"middle",translation:[e,i]}))}}function createTitle(t,e){var i=new Title({ctx:t.ctx,options:e,chart:t});layouts.configure(t,i,e),layouts.addBox(t,i),t.titleBlock=i}var plugin_title={id:"title",_element:Title,start(t,e,i){createTitle(t,i)},stop(t){var e=t.titleBlock;layouts.removeBox(t,e),delete t.titleBlock},beforeUpdate(t,e,i){const a=t.titleBlock;layouts.configure(t,a,i),a.options=i},defaults:{align:"center",display:!1,font:{weight:"bold"},fullSize:!0,padding:10,position:"top",text:"",weight:2e3},defaultRoutes:{color:"color"},descriptors:{_scriptable:!0,_indexable:!1}};const map=new WeakMap;var plugin_subtitle={id:"subtitle",start(t,e,i){var a=new Title({ctx:t.ctx,options:i,chart:t});layouts.configure(t,a,i),layouts.addBox(t,a),map.set(t,a)},stop(t){layouts.removeBox(t,map.get(t)),map.delete(t)},beforeUpdate(t,e,i){const a=map.get(t);layouts.configure(t,a,i),a.options=i},defaults:{align:"center",display:!1,font:{weight:"normal"},fullSize:!0,padding:0,position:"top",text:"",weight:1500},defaultRoutes:{color:"color"},descriptors:{_scriptable:!0,_indexable:!1}};const positioners={average(t){if(!t.length)return!1;let e,i,a=0,s=0,r=0;for(e=0,i=t.length;et+e.before.length+e.lines.length+e.after.length,0);v+=t.beforeBody.length+t.afterBody.length,c&&(f+=c*h.lineHeight+(c-1)*e.titleSpacing+e.titleMarginBottom),v&&(o=e.displayColors?Math.max(o,l.lineHeight):l.lineHeight,f+=g*o+(v-g)*l.lineHeight+(v-1)*e.bodySpacing),u&&(f+=e.footerMarginTop+u*d.lineHeight+(u-1)*e.footerSpacing);let x=0;function b(t){m=Math.max(m,i.measureText(t).width+x)}return i.save(),i.font=h.string,each(t.title,b),i.font=l.string,each(t.beforeBody.concat(t.afterBody),b),x=e.displayColors?n+2+e.boxPadding:0,each(a,t=>{each(t.before,b),each(t.lines,b),each(t.after,b)}),x=0,i.font=d.string,each(t.footer,b),i.restore(),m+=p.width,{width:m,height:f}}function determineYAlign(t,e){var{y:i,height:e}=e;return it.height-e/2?"bottom":"center"}function doesNotFitWithAlign(t,e,i,a){var{x:s,width:a}=a,i=i.caretSize+i.caretPadding;return"left"===t&&s+a+i>e.width||("right"===t&&s-a-i<0||void 0)}function determineXAlign(t,e,i,a){var{x:s,width:r}=i,{width:n,chartArea:{left:o,right:l}}=t;let h="center";return"center"===a?h=s<=(o+l)/2?"left":"right":s<=r/2?h="left":n-r/2<=s&&(h="right"),doesNotFitWithAlign(h,t,e,i)&&(h="center"),h}function determineAlignment(t,e,i){var a=i.yAlign||e.yAlign||determineYAlign(t,i);return{xAlign:i.xAlign||e.xAlign||determineXAlign(t,e,i,a),yAlign:a}}function alignX(t,e){let{x:i,width:a}=t;return"right"===e?i-=a:"center"===e&&(i-=a/2),i}function alignY(t,e,i){let{y:a,height:s}=t;return"top"===e?a+=i:a-="bottom"===e?s+i:s/2,a}function getBackgroundPoint(t,e,i,a){var{caretSize:s,caretPadding:r,cornerRadius:n}=t,{xAlign:o,yAlign:l}=i,h=s+r,{topLeft:d,topRight:t,bottomLeft:i,bottomRight:r}=toTRBLCorners(n);let c=alignX(e,o);n=alignY(e,l,h);return"center"===l?"left"===o?c+=h:"right"===o&&(c-=h):"left"===o?c-=Math.max(d,i)+s:"right"===o&&(c+=Math.max(t,r)+s),{x:_limitValue(c,0,a.width-e.width),y:_limitValue(n,0,a.height-e.height)}}function getAlignedX(t,e,i){i=toPadding(i.padding);return"center"===e?t.x+t.width/2:"right"===e?t.x+t.width-i.right:t.x+i.left}function getBeforeAfterBodyLines(t){return pushOrConcat([],splitNewlines(t))}function createTooltipContext(t,e,i){return createContext(t,{tooltip:e,tooltipItems:i,type:"tooltip"})}function overrideCallbacks(t,e){e=e&&e.dataset&&e.dataset.tooltip&&e.dataset.tooltip.callbacks;return e?t.override(e):t}class Tooltip extends Element{constructor(t){super(),this.opacity=0,this._active=[],this._eventPosition=void 0,this._size=void 0,this._cachedAnimations=void 0,this._tooltipItems=[],this.$animations=void 0,this.$context=void 0,this.chart=t.chart||t._chart,this._chart=this.chart,this.options=t.options,this.dataPoints=void 0,this.title=void 0,this.beforeBody=void 0,this.body=void 0,this.afterBody=void 0,this.footer=void 0,this.xAlign=void 0,this.yAlign=void 0,this.x=void 0,this.y=void 0,this.height=void 0,this.width=void 0,this.caretX=void 0,this.caretY=void 0,this.labelColors=void 0,this.labelPointStyles=void 0,this.labelTextColors=void 0}initialize(t){this.options=t,this._cachedAnimations=void 0,this.$context=void 0}_resolveAnimations(){var t=this._cachedAnimations;if(t)return t;var e=this.chart,t=this.options.setContext(this.getContext()),e=t.enabled&&e.options.animation&&t.animations,t=new Animations(this.chart,e);return e._cacheable&&(this._cachedAnimations=Object.freeze(t)),t}getContext(){return this.$context||(this.$context=createTooltipContext(this.chart.getContext(),this,this._tooltipItems))}getTitle(t,e){const i=e["callbacks"];var a=i.beforeTitle.apply(this,[t]),s=i.title.apply(this,[t]),e=i.afterTitle.apply(this,[t]),t=pushOrConcat(t=[],splitNewlines(a));return t=pushOrConcat(t,splitNewlines(s)),t=pushOrConcat(t,splitNewlines(e))}getBeforeBody(t,e){return getBeforeAfterBodyLines(e.callbacks.beforeBody.apply(this,[t]))}getBody(t,e){const a=e["callbacks"],s=[];return each(t,t=>{var e={before:[],lines:[],after:[]};const i=overrideCallbacks(a,t);pushOrConcat(e.before,splitNewlines(i.beforeLabel.call(this,t))),pushOrConcat(e.lines,i.label.call(this,t)),pushOrConcat(e.after,splitNewlines(i.afterLabel.call(this,t))),s.push(e)}),s}getAfterBody(t,e){return getBeforeAfterBodyLines(e.callbacks.afterBody.apply(this,[t]))}getFooter(t,e){const i=e["callbacks"];var a=i.beforeFooter.apply(this,[t]),s=i.footer.apply(this,[t]),e=i.afterFooter.apply(this,[t]),t=pushOrConcat(t=[],splitNewlines(a));return t=pushOrConcat(t,splitNewlines(s)),t=pushOrConcat(t,splitNewlines(e))}_createItems(a){var t=this._active;const s=this.chart.data,i=[],r=[],n=[];let e=[],o,l;for(o=0,l=t.length;oa.filter(t,e,i,s))),a.itemSort&&(e=e.sort((t,e)=>a.itemSort(t,e,s))),each(e,t=>{const e=overrideCallbacks(a.callbacks,t);i.push(e.labelColor.call(this,t)),r.push(e.labelPointStyle.call(this,t)),n.push(e.labelTextColor.call(this,t))}),this.labelColors=i,this.labelPointStyles=r,this.labelTextColors=n,this.dataPoints=e,e}update(t,e){const i=this.options.setContext(this.getContext());var a,s,r,n=this._active;let o,l=[];n.length?(a=positioners[i.position].call(this,n,this._eventPosition),l=this._createItems(i),this.title=this.getTitle(l,i),this.beforeBody=this.getBeforeBody(l,i),this.body=this.getBody(l,i),this.afterBody=this.getAfterBody(l,i),this.footer=this.getFooter(l,i),s=this._size=getTooltipSize(this,i),r=Object.assign({},a,s),n=determineAlignment(this.chart,i,r),r=getBackgroundPoint(i,r,n,this.chart),this.xAlign=n.xAlign,this.yAlign=n.yAlign,o={opacity:1,x:r.x,y:r.y,width:s.width,height:s.height,caretX:a.x,caretY:a.y}):0!==this.opacity&&(o={opacity:0}),this._tooltipItems=l,this.$context=void 0,o&&this._resolveAnimations().update(this,o),t&&i.external&&i.external.call(this,{chart:this.chart,tooltip:this,replay:e})}drawCaret(t,e,i,a){a=this.getCaretPosition(t,i,a);e.lineTo(a.x1,a.y1),e.lineTo(a.x2,a.y2),e.lineTo(a.x3,a.y3)}getCaretPosition(t,e,i){var{xAlign:a,yAlign:s}=this,{caretSize:r,cornerRadius:n}=i,{topLeft:o,topRight:l,bottomLeft:h,bottomRight:d}=toTRBLCorners(n),{x:i,y:n}=t,{width:t,height:e}=e;let c,u,g,p,f,m;return"center"===s?(f=n+e/2,m="left"===a?(c=i,u=c-r,p=f+r,f-r):(c=i+t,u=c+r,p=f-r,f+r),g=c):(u="left"===a?i+Math.max(o,h)+r:"right"===a?i+t-Math.max(l,d)-r:this.caretX,g="top"===s?(p=n,f=p-r,c=u-r,u+r):(p=n+e,f=p+r,c=u+r,u-r),m=p),{x1:c,x2:u,x3:g,y1:p,y2:f,y3:m}}drawTitle(t,e,i){var a=this.title,s=a.length;let r,n,o;if(s){const l=getRtlAdapter(i.rtl,this.x,this.width);for(t.x=getAlignedX(this,i.titleAlign,i),e.textAlign=l.textAlign(i.titleAlign),e.textBaseline="middle",r=toFont(i.titleFont),n=i.titleSpacing,e.fillStyle=i.titleColor,e.font=r.string,o=0;o0!==t)?(t.beginPath(),t.fillStyle=s.multiKeyBackground,addRoundedRectPath(t,{x:r,y:e,w:h,h:l,radius:d}),t.fill(),t.stroke(),t.fillStyle=n.backgroundColor,t.beginPath(),addRoundedRectPath(t,{x:u,y:e+1,w:h-2,h:l-2,radius:d}),t.fill()):(t.fillStyle=s.multiKeyBackground,t.fillRect(r,e,h,l),t.strokeRect(r,e,h,l),t.fillStyle=n.backgroundColor,t.fillRect(u,e+1,h-2,l-2))),t.fillStyle=this.labelTextColors[i]}drawBody(e,i,t){var a=this["body"];const{bodySpacing:s,bodyAlign:r,displayColors:n,boxHeight:o,boxWidth:l,boxPadding:h}=t;var d=toFont(t.bodyFont);let c=d.lineHeight,u=0;const g=getRtlAdapter(t.rtl,this.x,this.width);function p(t){i.fillText(t,g.x(e.x+u),e.y+c/2),e.y+=c+s}var f=g.textAlign(r);let m,v,x,b,_,y,S;for(i.textAlign=r,i.textBaseline="middle",i.font=d.string,e.x=getAlignedX(this,f,t),i.fillStyle=t.bodyColor,each(this.beforeBody,p),u=n&&"right"!==f?"center"===r?l/2+h:l+2+h:0,b=0,y=a.length;b{var i=this.chart.getDatasetMeta(t);if(!i)throw new Error("Cannot find a dataset at index "+t);return{datasetIndex:t,element:i.data[e],index:e}}),t=!_elementsEqual(i,a),i=this._positionChanged(a,e);(t||i)&&(this._active=a,this._eventPosition=e,this._ignoreReplayEvents=!0,this.update(!0))}handleEvent(t,e,i=!0){if(e&&this._ignoreReplayEvents)return!1;this._ignoreReplayEvents=!1;var a=this.options,s=this._active||[],r=this._getActiveElements(t,s,e,i),i=this._positionChanged(r,t),i=e||!_elementsEqual(r,s)||i;return i&&(this._active=r,(a.enabled||a.external)&&(this._eventPosition={x:t.x,y:t.y},this.update(!0,e))),i}_getActiveElements(t,e,i,a){var s=this.options;if("mouseout"===t.type)return[];if(!a)return e;const r=this.chart.getElementsAtEventForMode(t,s.mode,s,i);return s.reverse&&r.reverse(),r}_positionChanged(t,e){var{caretX:i,caretY:a,options:s}=this,e=positioners[s.position].call(this,t,e);return!1!==e&&(i!==e.x||a!==e.y)}}Tooltip.positioners=positioners;var plugin_tooltip={id:"tooltip",_element:Tooltip,positioners:positioners,afterInit(t,e,i){i&&(t.tooltip=new Tooltip({chart:t,options:i}))},beforeUpdate(t,e,i){t.tooltip&&t.tooltip.initialize(i)},reset(t,e,i){t.tooltip&&t.tooltip.initialize(i)},afterDraw(t){const e=t.tooltip;var i={tooltip:e};!1!==t.notifyPlugins("beforeTooltipDraw",i)&&(e&&e.draw(t.ctx),t.notifyPlugins("afterTooltipDraw",i))},afterEvent(t,e){var i;t.tooltip&&(i=e.replay,t.tooltip.handleEvent(e.event,i,e.inChartArea)&&(e.changed=!0))},defaults:{enabled:!0,external:null,position:"average",backgroundColor:"rgba(0,0,0,0.8)",titleColor:"#fff",titleFont:{weight:"bold"},titleSpacing:2,titleMarginBottom:6,titleAlign:"left",bodyColor:"#fff",bodySpacing:2,bodyFont:{},bodyAlign:"left",footerColor:"#fff",footerSpacing:2,footerMarginTop:6,footerFont:{weight:"bold"},footerAlign:"left",padding:6,caretPadding:2,caretSize:5,cornerRadius:6,boxHeight:(t,e)=>e.bodyFont.size,boxWidth:(t,e)=>e.bodyFont.size,multiKeyBackground:"#fff",displayColors:!0,boxPadding:0,borderColor:"rgba(0,0,0,0)",borderWidth:0,animation:{duration:400,easing:"easeOutQuart"},animations:{numbers:{type:"number",properties:["x","y","width","height","caretX","caretY"]},opacity:{easing:"linear",duration:200}},callbacks:{beforeTitle:noop,title(t){if(0"filter"!==t&&"itemSort"!==t&&"external"!==t,_indexable:!1,callbacks:{_scriptable:!1,_indexable:!1},animation:{_fallback:!1},animations:{_fallback:"animation"}},additionalOptionScopes:["interaction"]},plugins=Object.freeze({__proto__:null,Decimation:plugin_decimation,Filler:plugin_filler,Legend:plugin_legend,SubTitle:plugin_subtitle,Title:plugin_title,Tooltip:plugin_tooltip});const addIfString=(t,e,i,a)=>("string"==typeof e?(i=t.push(e)-1,a.unshift({index:i,label:e})):isNaN(e)&&(i=null),i);function findOrAddLabel(t,e,i,a){var s=t.indexOf(e);return-1===s?addIfString(t,e,i,a):s!==t.lastIndexOf(e)?i:s}const validIndex=(t,e)=>null===t?null:_limitValue(Math.round(t),0,e);class CategoryScale extends Scale{constructor(t){super(t),this._startValue=void 0,this._valueRange=0,this._addedLabels=[]}init(t){var e=this._addedLabels;if(e.length){const s=this.getLabels();for(var{index:i,label:a}of e)s[i]===a&&s.splice(i,1);this._addedLabels=[]}super.init(t)}parse(t,e){if(isNullOrUndef(t))return null;var i=this.getLabels();return e=isFinite(e)&&i[e]===t?e:findOrAddLabel(i,t,valueOrDefault(e,t),this._addedLabels),validIndex(e,i.length-1)}determineDataLimits(){var{minDefined:t,maxDefined:e}=this.getUserBounds();let{min:i,max:a}=this.getMinMax(!0);"ticks"===this.options.bounds&&(t||(i=0),e||(a=this.getLabels().length-1)),this.min=i,this.max=a}buildTicks(){var e=this.min,i=this.max,t=this.options.offset;const a=[];let s=this.getLabels();s=0===e&&i===s.length-1?s:s.slice(e,i+1),this._valueRange=Math.max(s.length-(t?0:1),1),this._startValue=this.min-(t?.5:0);for(let t=e;t<=i;t++)a.push({value:t});return a}getLabelForValue(t){var e=this.getLabels();return 0<=t&&te.length-1?null:this.getPixelForValue(e[t].value)}getValueForPixel(t){return Math.round(this._startValue+this.getDecimalForPixel(t)*this._valueRange)}getBasePixel(){return this.bottom}}function generateTicks$1(t,e){const i=[];var{bounds:a,step:s,min:r,max:n,precision:o,count:l,maxTicks:h,maxDigits:d,includeBounds:c}=t,u=s||1,g=h-1,{min:p,max:f}=e,m=!isNullOrUndef(r),v=!isNullOrUndef(n),e=!isNullOrUndef(l),d=(f-p)/(d+1);let x=niceNum((f-p)/g/u)*u,b,_,y,S;if(x<1e-14&&!m&&!v)return[{value:p},{value:f}];S=Math.ceil(f/x)-Math.floor(p/x),S>g&&(x=niceNum(S*x/g/u)*u),isNullOrUndef(o)||(b=Math.pow(10,o),x=Math.ceil(x*b)/b),y="ticks"===a?(_=Math.floor(p/x)*x,Math.ceil(f/x)*x):(_=p,f),m&&v&&s&&almostWhole((n-r)/s,x/1e3)?(S=Math.round(Math.min((n-r)/x,h)),x=(n-r)/S,_=r,y=n):e?(_=m?r:_,y=v?n:y,S=l-1,x=(y-_)/S):(S=(y-_)/x,S=almostEquals(S,Math.round(S),x/1e3)?Math.round(S):Math.ceil(S));l=Math.max(_decimalPlaces(x),_decimalPlaces(_));b=Math.pow(10,isNullOrUndef(o)?l:o),_=Math.round(_*b)/b,y=Math.round(y*b)/b;let k=0;for(m&&(c&&_!==r?(i.push({value:r}),_s=i?s:t,l=t=>r=a?r:t;if(e&&(t=sign(s),n=sign(r),t<0&&n<0?l(0):0=Number.MAX_SAFE_INTEGER||s<=Number.MIN_SAFE_INTEGER)&&(t=Math.abs(.05*r)),l(r+t),e||o(s-t)}this.min=s,this.max=r}getTickLimit(){let{maxTicksLimit:t,stepSize:e}=this.options.ticks,i;return e?(i=Math.ceil(this.max/e)-Math.floor(this.min/e)+1,1e3a=e?a:t,r=t=>s=i?s:t,n=(t,e)=>Math.pow(10,Math.floor(log10(t))+e);a===s&&(a<=0?(t(1),r(10)):(t(n(a,-1)),r(n(s,1)))),a<=0&&t(n(s,-1)),s<=0&&r(n(a,1)),this._zero&&this.min!==this._suggestedMin&&a===n(this.min,0)&&t(n(a,-1)),this.min=a,this.max=s}buildTicks(){var t=this.options;const e=generateTicks({min:this._userMin,max:this._userMax},this);return"ticks"===t.bounds&&_setMinAndMaxByKey(e,this,"value"),t.reverse?(e.reverse(),this.start=this.max,this.end=this.min):(this.start=this.min,this.end=this.max),e}getLabelForValue(t){return void 0===t?"0":formatNumber(t,this.chart.options.locale,this.options.ticks.format)}configure(){var t=this.min;super.configure(),this._startValue=log10(t),this._valueRange=log10(this.max)-log10(t)}getPixelForValue(t){return null===(t=void 0===t||0===t?this.min:t)||isNaN(t)?NaN:this.getPixelForDecimal(t===this.min?0:(log10(t)-this._startValue)/this._valueRange)}getValueForPixel(t){t=this.getDecimalForPixel(t);return Math.pow(10,this._startValue+t*this._valueRange)}}function getTickBackdropHeight(t){var e=t.ticks;if(e.display&&t.display){t=toPadding(e.backdropPadding);return valueOrDefault(e.font&&e.font.size,defaults.font.size)+t.height}return 0}function measureLabelSize(t,e,i){return i=isArray(i)?i:[i],{w:_longestText(t,e.string,i),h:i.length*e.lineHeight}}function determineLimits(t,e,i,a,s){return t===a||t===s?{start:e-i/2,end:e+i/2}:te.r&&(n=(a.end-e.r)/r,t.r=Math.max(t.r,e.r+n)),s.starte.b&&(o=(s.end-e.b)/i,t.b=Math.max(t.b,e.b+o))}function buildPointLabelItems(e,i,a){const s=[];var r=e._pointLabels.length,t=e.options,n=getTickBackdropHeight(t)/2,o=e.drawingArea,l=t.pointLabels.centerPointLabels?PI/r:0;for(let t=0;t{e=callback(this.options.pointLabels.callback,[t,e],this);return e||0===e?e:""}).filter((t,e)=>this.chart.getDataVisibility(e))}fit(){var t=this.options;t.display&&t.pointLabels.display?fitWithPointLabels(this):this.setCenterPoint(0,0,0,0)}setCenterPoint(t,e,i,a){this.xCenter+=Math.floor((t-e)/2),this.yCenter+=Math.floor((i-a)/2),this.drawingArea-=Math.min(this.drawingArea/2,Math.max(t,e,i,a))}getIndexAngle(t){var e=TAU/(this._pointLabels.length||1),i=this.options.startAngle||0;return _normalizeAngle(t*e+toRadians(i))}getDistanceFromCenterForValue(t){if(isNullOrUndef(t))return NaN;var e=this.drawingArea/(this.max-this.min);return this.options.reverse?(this.max-t)*e:(t-this.min)*e}getValueForDistanceFromCenter(t){if(isNullOrUndef(t))return NaN;t/=this.drawingArea/(this.max-this.min);return this.options.reverse?this.max-t:this.min+t}getPointLabelContext(t){var e=this._pointLabels||[];if(0<=t&&t{0!==e&&(n=this.getDistanceFromCenterForValue(t.value),e=a.setContext(this.getContext(e-1)),drawRadiusLine(this,e,n,s))}),i.display){for(t.save(),r=s-1;0<=r;r--){var l=i.setContext(this.getPointLabelContext(r)),{color:h,lineWidth:d}=l;d&&h&&(t.lineWidth=d,t.strokeStyle=h,t.setLineDash(l.borderDash),t.lineDashOffset=l.borderDashOffset,n=this.getDistanceFromCenterForValue(e.ticks.reverse?this.min:this.max),o=this.getPointPosition(r,n),t.beginPath(),t.moveTo(this.xCenter,this.yCenter),t.lineTo(o.x,o.y),t.stroke())}t.restore()}}drawBorder(){}drawLabels(){const n=this.ctx,o=this.options,l=o.ticks;if(l.display){var t=this.getIndexAngle(0);let s,r;n.save(),n.translate(this.xCenter,this.yCenter),n.rotate(t),n.textAlign="center",n.textBaseline="middle",this.ticks.forEach((t,e)=>{var i,a;0===e&&!o.reverse||(i=l.setContext(this.getContext(e)),a=toFont(i.font),s=this.getDistanceFromCenterForValue(this.ticks[e].value),i.showLabelBackdrop&&(n.font=a.string,r=n.measureText(t.label).width,n.fillStyle=i.backdropColor,e=toPadding(i.backdropPadding),n.fillRect(-r/2-e.left,-s-a.size/2-e.top,r+e.width,a.size+e.height)),renderText(n,t.label,0,-s,a,{color:i.color}))}),n.restore()}}drawTitle(){}}RadialLinearScale.id="radialLinear",RadialLinearScale.defaults={display:!0,animate:!0,position:"chartArea",angleLines:{display:!0,lineWidth:1,borderDash:[],borderDashOffset:0},grid:{circular:!1},startAngle:0,ticks:{showLabelBackdrop:!0,callback:Ticks.formatters.numeric},pointLabels:{backdropColor:void 0,backdropPadding:2,display:!0,font:{size:10},callback(t){return t},padding:5,centerPointLabels:!1}},RadialLinearScale.defaultRoutes={"angleLines.color":"borderColor","pointLabels.color":"color","ticks.color":"color"};const INTERVALS={millisecond:{common:!0,size:1,steps:1e3},second:{common:!0,size:1e3,steps:60},minute:{common:!0,size:6e4,steps:60},hour:{common:!0,size:36e5,steps:24},day:{common:!0,size:864e5,steps:30},week:{common:!(RadialLinearScale.descriptors={angleLines:{_fallback:"grid"}}),size:6048e5,steps:4},month:{common:!0,size:2628e6,steps:12},quarter:{common:!1,size:7884e6,steps:4},year:{common:!0,size:3154e7}},UNITS=Object.keys(INTERVALS);function sorter(t,e){return t-e}function parse(t,e){if(isNullOrUndef(e))return null;const i=t._adapter,{parser:a,round:s,isoWeekday:r}=t._parseOpts;let n=e;return"function"==typeof a&&(n=a(n)),isNumberFinite(n)||(n="string"==typeof a?i.parse(n,a):i.parse(n)),null===n?null:(s&&(n="week"!==s||!isNumber(r)&&!0!==r?i.startOf(n,s):i.startOf(n,"isoWeek",r)),+n)}function determineUnitForAutoTicks(e,i,a,s){var r=UNITS.length;for(let t=UNITS.indexOf(e);t=UNITS.indexOf(a);t--){var n=UNITS[t];if(INTERVALS[n].common&&e._adapter.diff(r,s,n)>=i-1)return n}return UNITS[a?UNITS.indexOf(a):0]}function determineMajorUnit(i){for(let t=UNITS.indexOf(i)+1,e=UNITS.length;t=e?i[a]:i[s]]=!0):t[e]=!0}function setMajorTicks(t,e,i,a){const s=t._adapter;var t=+s.startOf(e[0].value,a),r=e[e.length-1].value;let n,o;for(n=t;n<=r;n=+s.add(n,1,a))0<=(o=i[n])&&(e[o].major=!0);return e}function ticksFromTimestamps(t,e,i){const a=[],s={};var r=e.length;let n,o;for(n=0;n1e5*n)throw new Error(e+" and "+i+" are too far apart with stepSize of "+n+" "+r);var u="data"===a.ticks.source&&this.getDataTimestamps();for(d=h,c=0;dt-e).map(t=>+t)}getLabelForValue(t){const e=this._adapter;var i=this.options.time;return i.tooltipFormat?e.format(t,i.tooltipFormat):e.format(t,i.displayFormats.datetime)}_tickFormatFunction(t,e,i,a){var s=this.options,r=s.time.displayFormats,n=this._unit,o=this._majorUnit,l=n&&r[n],n=o&&r[o],r=i[e],r=o&&n&&r&&r.major,l=this._adapter.format(t,a||(r?n:l)),s=s.ticks.callback;return s?callback(s,[l,e,i],this):l}generateTickLabels(t){let e,i,a;for(e=0,i=t.length;e=t[a].pos&&e<=t[s].pos&&({lo:a,hi:s}=_lookupByKey(t,"pos",e)),{pos:r,time:o}=t[a],{pos:n,time:l}=t[s]):(e>=t[a].time&&e<=t[s].time&&({lo:a,hi:s}=_lookupByKey(t,"time",e)),{time:r,pos:o}=t[a],{time:n,pos:l}=t[s]);t=n-r;return t?o+(l-o)*(e-r)/t:o}TimeScale.id="time",TimeScale.defaults={bounds:"data",adapters:{},time:{parser:!1,unit:!1,round:!1,isoWeekday:!1,minUnit:"millisecond",displayFormats:{}},ticks:{source:"auto",major:{enabled:!1}}};class TimeSeriesScale extends TimeScale{constructor(t){super(t),this._table=[],this._minPos=void 0,this._tableRange=void 0}initOffsets(){var t=this._getTimestampsForTable(),e=this._table=this.buildLookupTable(t);this._minPos=interpolate(e,this.min),this._tableRange=interpolate(e,this.max)-this._minPos,super.initOffsets(t)}buildLookupTable(t){var{min:e,max:i}=this;const a=[],s=[];let r,n,o,l,h;for(r=0,n=t.length;r=e&&l<=i&&a.push(l);if(a.length<2)return[{time:e,pos:0},{time:i,pos:1}];for(r=0,n=a.length;r Array.prototype.slice.call(args)); + let ticking = false; + let args = []; + return function(...rest) { + args = updateArgs(rest); + if (!ticking) { + ticking = true; + requestAnimFrame.call(window, () => { + ticking = false; + fn.apply(thisArg, args); + }); + } + }; +} +function debounce(fn, delay) { + let timeout; + return function(...args) { + if (delay) { + clearTimeout(timeout); + timeout = setTimeout(fn, delay, args); + } else { + fn.apply(this, args); + } + return delay; + }; +} +const _toLeftRightCenter = (align) => align === 'start' ? 'left' : align === 'end' ? 'right' : 'center'; +const _alignStartEnd = (align, start, end) => align === 'start' ? start : align === 'end' ? end : (start + end) / 2; +const _textX = (align, left, right, rtl) => { + const check = rtl ? 'left' : 'right'; + return align === check ? right : align === 'center' ? (left + right) / 2 : left; +}; + +class Animator { + constructor() { + this._request = null; + this._charts = new Map(); + this._running = false; + this._lastDate = undefined; + } + _notify(chart, anims, date, type) { + const callbacks = anims.listeners[type]; + const numSteps = anims.duration; + callbacks.forEach(fn => fn({ + chart, + initial: anims.initial, + numSteps, + currentStep: Math.min(date - anims.start, numSteps) + })); + } + _refresh() { + if (this._request) { + return; + } + this._running = true; + this._request = requestAnimFrame.call(window, () => { + this._update(); + this._request = null; + if (this._running) { + this._refresh(); + } + }); + } + _update(date = Date.now()) { + let remaining = 0; + this._charts.forEach((anims, chart) => { + if (!anims.running || !anims.items.length) { + return; + } + const items = anims.items; + let i = items.length - 1; + let draw = false; + let item; + for (; i >= 0; --i) { + item = items[i]; + if (item._active) { + if (item._total > anims.duration) { + anims.duration = item._total; + } + item.tick(date); + draw = true; + } else { + items[i] = items[items.length - 1]; + items.pop(); + } + } + if (draw) { + chart.draw(); + this._notify(chart, anims, date, 'progress'); + } + if (!items.length) { + anims.running = false; + this._notify(chart, anims, date, 'complete'); + anims.initial = false; + } + remaining += items.length; + }); + this._lastDate = date; + if (remaining === 0) { + this._running = false; + } + } + _getAnims(chart) { + const charts = this._charts; + let anims = charts.get(chart); + if (!anims) { + anims = { + running: false, + initial: true, + items: [], + listeners: { + complete: [], + progress: [] + } + }; + charts.set(chart, anims); + } + return anims; + } + listen(chart, event, cb) { + this._getAnims(chart).listeners[event].push(cb); + } + add(chart, items) { + if (!items || !items.length) { + return; + } + this._getAnims(chart).items.push(...items); + } + has(chart) { + return this._getAnims(chart).items.length > 0; + } + start(chart) { + const anims = this._charts.get(chart); + if (!anims) { + return; + } + anims.running = true; + anims.start = Date.now(); + anims.duration = anims.items.reduce((acc, cur) => Math.max(acc, cur._duration), 0); + this._refresh(); + } + running(chart) { + if (!this._running) { + return false; + } + const anims = this._charts.get(chart); + if (!anims || !anims.running || !anims.items.length) { + return false; + } + return true; + } + stop(chart) { + const anims = this._charts.get(chart); + if (!anims || !anims.items.length) { + return; + } + const items = anims.items; + let i = items.length - 1; + for (; i >= 0; --i) { + items[i].cancel(); + } + anims.items = []; + this._notify(chart, anims, Date.now(), 'complete'); + } + remove(chart) { + return this._charts.delete(chart); + } +} +var animator = new Animator(); + +/*! + * @kurkle/color v0.1.9 + * https://github.com/kurkle/color#readme + * (c) 2020 Jukka Kurkela + * Released under the MIT License + */ +const map$1 = {0: 0, 1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6, 7: 7, 8: 8, 9: 9, A: 10, B: 11, C: 12, D: 13, E: 14, F: 15, a: 10, b: 11, c: 12, d: 13, e: 14, f: 15}; +const hex = '0123456789ABCDEF'; +const h1 = (b) => hex[b & 0xF]; +const h2 = (b) => hex[(b & 0xF0) >> 4] + hex[b & 0xF]; +const eq = (b) => (((b & 0xF0) >> 4) === (b & 0xF)); +function isShort(v) { + return eq(v.r) && eq(v.g) && eq(v.b) && eq(v.a); +} +function hexParse(str) { + var len = str.length; + var ret; + if (str[0] === '#') { + if (len === 4 || len === 5) { + ret = { + r: 255 & map$1[str[1]] * 17, + g: 255 & map$1[str[2]] * 17, + b: 255 & map$1[str[3]] * 17, + a: len === 5 ? map$1[str[4]] * 17 : 255 + }; + } else if (len === 7 || len === 9) { + ret = { + r: map$1[str[1]] << 4 | map$1[str[2]], + g: map$1[str[3]] << 4 | map$1[str[4]], + b: map$1[str[5]] << 4 | map$1[str[6]], + a: len === 9 ? (map$1[str[7]] << 4 | map$1[str[8]]) : 255 + }; + } + } + return ret; +} +function hexString(v) { + var f = isShort(v) ? h1 : h2; + return v + ? '#' + f(v.r) + f(v.g) + f(v.b) + (v.a < 255 ? f(v.a) : '') + : v; +} +function round(v) { + return v + 0.5 | 0; +} +const lim = (v, l, h) => Math.max(Math.min(v, h), l); +function p2b(v) { + return lim(round(v * 2.55), 0, 255); +} +function n2b(v) { + return lim(round(v * 255), 0, 255); +} +function b2n(v) { + return lim(round(v / 2.55) / 100, 0, 1); +} +function n2p(v) { + return lim(round(v * 100), 0, 100); +} +const RGB_RE = /^rgba?\(\s*([-+.\d]+)(%)?[\s,]+([-+.e\d]+)(%)?[\s,]+([-+.e\d]+)(%)?(?:[\s,/]+([-+.e\d]+)(%)?)?\s*\)$/; +function rgbParse(str) { + const m = RGB_RE.exec(str); + let a = 255; + let r, g, b; + if (!m) { + return; + } + if (m[7] !== r) { + const v = +m[7]; + a = 255 & (m[8] ? p2b(v) : v * 255); + } + r = +m[1]; + g = +m[3]; + b = +m[5]; + r = 255 & (m[2] ? p2b(r) : r); + g = 255 & (m[4] ? p2b(g) : g); + b = 255 & (m[6] ? p2b(b) : b); + return { + r: r, + g: g, + b: b, + a: a + }; +} +function rgbString(v) { + return v && ( + v.a < 255 + ? `rgba(${v.r}, ${v.g}, ${v.b}, ${b2n(v.a)})` + : `rgb(${v.r}, ${v.g}, ${v.b})` + ); +} +const HUE_RE = /^(hsla?|hwb|hsv)\(\s*([-+.e\d]+)(?:deg)?[\s,]+([-+.e\d]+)%[\s,]+([-+.e\d]+)%(?:[\s,]+([-+.e\d]+)(%)?)?\s*\)$/; +function hsl2rgbn(h, s, l) { + const a = s * Math.min(l, 1 - l); + const f = (n, k = (n + h / 30) % 12) => l - a * Math.max(Math.min(k - 3, 9 - k, 1), -1); + return [f(0), f(8), f(4)]; +} +function hsv2rgbn(h, s, v) { + const f = (n, k = (n + h / 60) % 6) => v - v * s * Math.max(Math.min(k, 4 - k, 1), 0); + return [f(5), f(3), f(1)]; +} +function hwb2rgbn(h, w, b) { + const rgb = hsl2rgbn(h, 1, 0.5); + let i; + if (w + b > 1) { + i = 1 / (w + b); + w *= i; + b *= i; + } + for (i = 0; i < 3; i++) { + rgb[i] *= 1 - w - b; + rgb[i] += w; + } + return rgb; +} +function rgb2hsl(v) { + const range = 255; + const r = v.r / range; + const g = v.g / range; + const b = v.b / range; + const max = Math.max(r, g, b); + const min = Math.min(r, g, b); + const l = (max + min) / 2; + let h, s, d; + if (max !== min) { + d = max - min; + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + h = max === r + ? ((g - b) / d) + (g < b ? 6 : 0) + : max === g + ? (b - r) / d + 2 + : (r - g) / d + 4; + h = h * 60 + 0.5; + } + return [h | 0, s || 0, l]; +} +function calln(f, a, b, c) { + return ( + Array.isArray(a) + ? f(a[0], a[1], a[2]) + : f(a, b, c) + ).map(n2b); +} +function hsl2rgb(h, s, l) { + return calln(hsl2rgbn, h, s, l); +} +function hwb2rgb(h, w, b) { + return calln(hwb2rgbn, h, w, b); +} +function hsv2rgb(h, s, v) { + return calln(hsv2rgbn, h, s, v); +} +function hue(h) { + return (h % 360 + 360) % 360; +} +function hueParse(str) { + const m = HUE_RE.exec(str); + let a = 255; + let v; + if (!m) { + return; + } + if (m[5] !== v) { + a = m[6] ? p2b(+m[5]) : n2b(+m[5]); + } + const h = hue(+m[2]); + const p1 = +m[3] / 100; + const p2 = +m[4] / 100; + if (m[1] === 'hwb') { + v = hwb2rgb(h, p1, p2); + } else if (m[1] === 'hsv') { + v = hsv2rgb(h, p1, p2); + } else { + v = hsl2rgb(h, p1, p2); + } + return { + r: v[0], + g: v[1], + b: v[2], + a: a + }; +} +function rotate(v, deg) { + var h = rgb2hsl(v); + h[0] = hue(h[0] + deg); + h = hsl2rgb(h); + v.r = h[0]; + v.g = h[1]; + v.b = h[2]; +} +function hslString(v) { + if (!v) { + return; + } + const a = rgb2hsl(v); + const h = a[0]; + const s = n2p(a[1]); + const l = n2p(a[2]); + return v.a < 255 + ? `hsla(${h}, ${s}%, ${l}%, ${b2n(v.a)})` + : `hsl(${h}, ${s}%, ${l}%)`; +} +const map$1$1 = { + x: 'dark', + Z: 'light', + Y: 're', + X: 'blu', + W: 'gr', + V: 'medium', + U: 'slate', + A: 'ee', + T: 'ol', + S: 'or', + B: 'ra', + C: 'lateg', + D: 'ights', + R: 'in', + Q: 'turquois', + E: 'hi', + P: 'ro', + O: 'al', + N: 'le', + M: 'de', + L: 'yello', + F: 'en', + K: 'ch', + G: 'arks', + H: 'ea', + I: 'ightg', + J: 'wh' +}; +const names = { + OiceXe: 'f0f8ff', + antiquewEte: 'faebd7', + aqua: 'ffff', + aquamarRe: '7fffd4', + azuY: 'f0ffff', + beige: 'f5f5dc', + bisque: 'ffe4c4', + black: '0', + blanKedOmond: 'ffebcd', + Xe: 'ff', + XeviTet: '8a2be2', + bPwn: 'a52a2a', + burlywood: 'deb887', + caMtXe: '5f9ea0', + KartYuse: '7fff00', + KocTate: 'd2691e', + cSO: 'ff7f50', + cSnflowerXe: '6495ed', + cSnsilk: 'fff8dc', + crimson: 'dc143c', + cyan: 'ffff', + xXe: '8b', + xcyan: '8b8b', + xgTMnPd: 'b8860b', + xWay: 'a9a9a9', + xgYF: '6400', + xgYy: 'a9a9a9', + xkhaki: 'bdb76b', + xmagFta: '8b008b', + xTivegYF: '556b2f', + xSange: 'ff8c00', + xScEd: '9932cc', + xYd: '8b0000', + xsOmon: 'e9967a', + xsHgYF: '8fbc8f', + xUXe: '483d8b', + xUWay: '2f4f4f', + xUgYy: '2f4f4f', + xQe: 'ced1', + xviTet: '9400d3', + dAppRk: 'ff1493', + dApskyXe: 'bfff', + dimWay: '696969', + dimgYy: '696969', + dodgerXe: '1e90ff', + fiYbrick: 'b22222', + flSOwEte: 'fffaf0', + foYstWAn: '228b22', + fuKsia: 'ff00ff', + gaRsbSo: 'dcdcdc', + ghostwEte: 'f8f8ff', + gTd: 'ffd700', + gTMnPd: 'daa520', + Way: '808080', + gYF: '8000', + gYFLw: 'adff2f', + gYy: '808080', + honeyMw: 'f0fff0', + hotpRk: 'ff69b4', + RdianYd: 'cd5c5c', + Rdigo: '4b0082', + ivSy: 'fffff0', + khaki: 'f0e68c', + lavFMr: 'e6e6fa', + lavFMrXsh: 'fff0f5', + lawngYF: '7cfc00', + NmoncEffon: 'fffacd', + ZXe: 'add8e6', + ZcSO: 'f08080', + Zcyan: 'e0ffff', + ZgTMnPdLw: 'fafad2', + ZWay: 'd3d3d3', + ZgYF: '90ee90', + ZgYy: 'd3d3d3', + ZpRk: 'ffb6c1', + ZsOmon: 'ffa07a', + ZsHgYF: '20b2aa', + ZskyXe: '87cefa', + ZUWay: '778899', + ZUgYy: '778899', + ZstAlXe: 'b0c4de', + ZLw: 'ffffe0', + lime: 'ff00', + limegYF: '32cd32', + lRF: 'faf0e6', + magFta: 'ff00ff', + maPon: '800000', + VaquamarRe: '66cdaa', + VXe: 'cd', + VScEd: 'ba55d3', + VpurpN: '9370db', + VsHgYF: '3cb371', + VUXe: '7b68ee', + VsprRggYF: 'fa9a', + VQe: '48d1cc', + VviTetYd: 'c71585', + midnightXe: '191970', + mRtcYam: 'f5fffa', + mistyPse: 'ffe4e1', + moccasR: 'ffe4b5', + navajowEte: 'ffdead', + navy: '80', + Tdlace: 'fdf5e6', + Tive: '808000', + TivedBb: '6b8e23', + Sange: 'ffa500', + SangeYd: 'ff4500', + ScEd: 'da70d6', + pOegTMnPd: 'eee8aa', + pOegYF: '98fb98', + pOeQe: 'afeeee', + pOeviTetYd: 'db7093', + papayawEp: 'ffefd5', + pHKpuff: 'ffdab9', + peru: 'cd853f', + pRk: 'ffc0cb', + plum: 'dda0dd', + powMrXe: 'b0e0e6', + purpN: '800080', + YbeccapurpN: '663399', + Yd: 'ff0000', + Psybrown: 'bc8f8f', + PyOXe: '4169e1', + saddNbPwn: '8b4513', + sOmon: 'fa8072', + sandybPwn: 'f4a460', + sHgYF: '2e8b57', + sHshell: 'fff5ee', + siFna: 'a0522d', + silver: 'c0c0c0', + skyXe: '87ceeb', + UXe: '6a5acd', + UWay: '708090', + UgYy: '708090', + snow: 'fffafa', + sprRggYF: 'ff7f', + stAlXe: '4682b4', + tan: 'd2b48c', + teO: '8080', + tEstN: 'd8bfd8', + tomato: 'ff6347', + Qe: '40e0d0', + viTet: 'ee82ee', + JHt: 'f5deb3', + wEte: 'ffffff', + wEtesmoke: 'f5f5f5', + Lw: 'ffff00', + LwgYF: '9acd32' +}; +function unpack() { + const unpacked = {}; + const keys = Object.keys(names); + const tkeys = Object.keys(map$1$1); + let i, j, k, ok, nk; + for (i = 0; i < keys.length; i++) { + ok = nk = keys[i]; + for (j = 0; j < tkeys.length; j++) { + k = tkeys[j]; + nk = nk.replace(k, map$1$1[k]); + } + k = parseInt(names[ok], 16); + unpacked[nk] = [k >> 16 & 0xFF, k >> 8 & 0xFF, k & 0xFF]; + } + return unpacked; +} +let names$1; +function nameParse(str) { + if (!names$1) { + names$1 = unpack(); + names$1.transparent = [0, 0, 0, 0]; + } + const a = names$1[str.toLowerCase()]; + return a && { + r: a[0], + g: a[1], + b: a[2], + a: a.length === 4 ? a[3] : 255 + }; +} +function modHSL(v, i, ratio) { + if (v) { + let tmp = rgb2hsl(v); + tmp[i] = Math.max(0, Math.min(tmp[i] + tmp[i] * ratio, i === 0 ? 360 : 1)); + tmp = hsl2rgb(tmp); + v.r = tmp[0]; + v.g = tmp[1]; + v.b = tmp[2]; + } +} +function clone$1(v, proto) { + return v ? Object.assign(proto || {}, v) : v; +} +function fromObject(input) { + var v = {r: 0, g: 0, b: 0, a: 255}; + if (Array.isArray(input)) { + if (input.length >= 3) { + v = {r: input[0], g: input[1], b: input[2], a: 255}; + if (input.length > 3) { + v.a = n2b(input[3]); + } + } + } else { + v = clone$1(input, {r: 0, g: 0, b: 0, a: 1}); + v.a = n2b(v.a); + } + return v; +} +function functionParse(str) { + if (str.charAt(0) === 'r') { + return rgbParse(str); + } + return hueParse(str); +} +class Color { + constructor(input) { + if (input instanceof Color) { + return input; + } + const type = typeof input; + let v; + if (type === 'object') { + v = fromObject(input); + } else if (type === 'string') { + v = hexParse(input) || nameParse(input) || functionParse(input); + } + this._rgb = v; + this._valid = !!v; + } + get valid() { + return this._valid; + } + get rgb() { + var v = clone$1(this._rgb); + if (v) { + v.a = b2n(v.a); + } + return v; + } + set rgb(obj) { + this._rgb = fromObject(obj); + } + rgbString() { + return this._valid ? rgbString(this._rgb) : this._rgb; + } + hexString() { + return this._valid ? hexString(this._rgb) : this._rgb; + } + hslString() { + return this._valid ? hslString(this._rgb) : this._rgb; + } + mix(color, weight) { + const me = this; + if (color) { + const c1 = me.rgb; + const c2 = color.rgb; + let w2; + const p = weight === w2 ? 0.5 : weight; + const w = 2 * p - 1; + const a = c1.a - c2.a; + const w1 = ((w * a === -1 ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + w2 = 1 - w1; + c1.r = 0xFF & w1 * c1.r + w2 * c2.r + 0.5; + c1.g = 0xFF & w1 * c1.g + w2 * c2.g + 0.5; + c1.b = 0xFF & w1 * c1.b + w2 * c2.b + 0.5; + c1.a = p * c1.a + (1 - p) * c2.a; + me.rgb = c1; + } + return me; + } + clone() { + return new Color(this.rgb); + } + alpha(a) { + this._rgb.a = n2b(a); + return this; + } + clearer(ratio) { + const rgb = this._rgb; + rgb.a *= 1 - ratio; + return this; + } + greyscale() { + const rgb = this._rgb; + const val = round(rgb.r * 0.3 + rgb.g * 0.59 + rgb.b * 0.11); + rgb.r = rgb.g = rgb.b = val; + return this; + } + opaquer(ratio) { + const rgb = this._rgb; + rgb.a *= 1 + ratio; + return this; + } + negate() { + const v = this._rgb; + v.r = 255 - v.r; + v.g = 255 - v.g; + v.b = 255 - v.b; + return this; + } + lighten(ratio) { + modHSL(this._rgb, 2, ratio); + return this; + } + darken(ratio) { + modHSL(this._rgb, 2, -ratio); + return this; + } + saturate(ratio) { + modHSL(this._rgb, 1, ratio); + return this; + } + desaturate(ratio) { + modHSL(this._rgb, 1, -ratio); + return this; + } + rotate(deg) { + rotate(this._rgb, deg); + return this; + } +} +function index_esm(input) { + return new Color(input); +} + +const isPatternOrGradient = (value) => value instanceof CanvasGradient || value instanceof CanvasPattern; +function color(value) { + return isPatternOrGradient(value) ? value : index_esm(value); +} +function getHoverColor(value) { + return isPatternOrGradient(value) + ? value + : index_esm(value).saturate(0.5).darken(0.1).hexString(); +} + +function noop() {} +const uid = (function() { + let id = 0; + return function() { + return id++; + }; +}()); +function isNullOrUndef(value) { + return value === null || typeof value === 'undefined'; +} +function isArray(value) { + if (Array.isArray && Array.isArray(value)) { + return true; + } + const type = Object.prototype.toString.call(value); + if (type.substr(0, 7) === '[object' && type.substr(-6) === 'Array]') { + return true; + } + return false; +} +function isObject(value) { + return value !== null && Object.prototype.toString.call(value) === '[object Object]'; +} +const isNumberFinite = (value) => (typeof value === 'number' || value instanceof Number) && isFinite(+value); +function finiteOrDefault(value, defaultValue) { + return isNumberFinite(value) ? value : defaultValue; +} +function valueOrDefault(value, defaultValue) { + return typeof value === 'undefined' ? defaultValue : value; +} +const toPercentage = (value, dimension) => + typeof value === 'string' && value.endsWith('%') ? + parseFloat(value) / 100 + : value / dimension; +const toDimension = (value, dimension) => + typeof value === 'string' && value.endsWith('%') ? + parseFloat(value) / 100 * dimension + : +value; +function callback(fn, args, thisArg) { + if (fn && typeof fn.call === 'function') { + return fn.apply(thisArg, args); + } +} +function each(loopable, fn, thisArg, reverse) { + let i, len, keys; + if (isArray(loopable)) { + len = loopable.length; + if (reverse) { + for (i = len - 1; i >= 0; i--) { + fn.call(thisArg, loopable[i], i); + } + } else { + for (i = 0; i < len; i++) { + fn.call(thisArg, loopable[i], i); + } + } + } else if (isObject(loopable)) { + keys = Object.keys(loopable); + len = keys.length; + for (i = 0; i < len; i++) { + fn.call(thisArg, loopable[keys[i]], keys[i]); + } + } +} +function _elementsEqual(a0, a1) { + let i, ilen, v0, v1; + if (!a0 || !a1 || a0.length !== a1.length) { + return false; + } + for (i = 0, ilen = a0.length; i < ilen; ++i) { + v0 = a0[i]; + v1 = a1[i]; + if (v0.datasetIndex !== v1.datasetIndex || v0.index !== v1.index) { + return false; + } + } + return true; +} +function clone(source) { + if (isArray(source)) { + return source.map(clone); + } + if (isObject(source)) { + const target = Object.create(null); + const keys = Object.keys(source); + const klen = keys.length; + let k = 0; + for (; k < klen; ++k) { + target[keys[k]] = clone(source[keys[k]]); + } + return target; + } + return source; +} +function isValidKey(key) { + return ['__proto__', 'prototype', 'constructor'].indexOf(key) === -1; +} +function _merger(key, target, source, options) { + if (!isValidKey(key)) { + return; + } + const tval = target[key]; + const sval = source[key]; + if (isObject(tval) && isObject(sval)) { + merge(tval, sval, options); + } else { + target[key] = clone(sval); + } +} +function merge(target, source, options) { + const sources = isArray(source) ? source : [source]; + const ilen = sources.length; + if (!isObject(target)) { + return target; + } + options = options || {}; + const merger = options.merger || _merger; + for (let i = 0; i < ilen; ++i) { + source = sources[i]; + if (!isObject(source)) { + continue; + } + const keys = Object.keys(source); + for (let k = 0, klen = keys.length; k < klen; ++k) { + merger(keys[k], target, source, options); + } + } + return target; +} +function mergeIf(target, source) { + return merge(target, source, {merger: _mergerIf}); +} +function _mergerIf(key, target, source) { + if (!isValidKey(key)) { + return; + } + const tval = target[key]; + const sval = source[key]; + if (isObject(tval) && isObject(sval)) { + mergeIf(tval, sval); + } else if (!Object.prototype.hasOwnProperty.call(target, key)) { + target[key] = clone(sval); + } +} +function _deprecated(scope, value, previous, current) { + if (value !== undefined) { + console.warn(scope + ': "' + previous + + '" is deprecated. Please use "' + current + '" instead'); + } +} +const emptyString = ''; +const dot = '.'; +function indexOfDotOrLength(key, start) { + const idx = key.indexOf(dot, start); + return idx === -1 ? key.length : idx; +} +function resolveObjectKey(obj, key) { + if (key === emptyString) { + return obj; + } + let pos = 0; + let idx = indexOfDotOrLength(key, pos); + while (obj && idx > pos) { + obj = obj[key.substr(pos, idx - pos)]; + pos = idx + 1; + idx = indexOfDotOrLength(key, pos); + } + return obj; +} +function _capitalize(str) { + return str.charAt(0).toUpperCase() + str.slice(1); +} +const defined = (value) => typeof value !== 'undefined'; +const isFunction = (value) => typeof value === 'function'; +const setsEqual = (a, b) => { + if (a.size !== b.size) { + return false; + } + for (const item of a) { + if (!b.has(item)) { + return false; + } + } + return true; +}; +function _isClickEvent(e) { + return e.type === 'mouseup' || e.type === 'click' || e.type === 'contextmenu'; +} + +const overrides = Object.create(null); +const descriptors = Object.create(null); +function getScope$1(node, key) { + if (!key) { + return node; + } + const keys = key.split('.'); + for (let i = 0, n = keys.length; i < n; ++i) { + const k = keys[i]; + node = node[k] || (node[k] = Object.create(null)); + } + return node; +} +function set(root, scope, values) { + if (typeof scope === 'string') { + return merge(getScope$1(root, scope), values); + } + return merge(getScope$1(root, ''), scope); +} +class Defaults { + constructor(_descriptors) { + this.animation = undefined; + this.backgroundColor = 'rgba(0,0,0,0.1)'; + this.borderColor = 'rgba(0,0,0,0.1)'; + this.color = '#666'; + this.datasets = {}; + this.devicePixelRatio = (context) => context.chart.platform.getDevicePixelRatio(); + this.elements = {}; + this.events = [ + 'mousemove', + 'mouseout', + 'click', + 'touchstart', + 'touchmove' + ]; + this.font = { + family: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif", + size: 12, + style: 'normal', + lineHeight: 1.2, + weight: null + }; + this.hover = {}; + this.hoverBackgroundColor = (ctx, options) => getHoverColor(options.backgroundColor); + this.hoverBorderColor = (ctx, options) => getHoverColor(options.borderColor); + this.hoverColor = (ctx, options) => getHoverColor(options.color); + this.indexAxis = 'x'; + this.interaction = { + mode: 'nearest', + intersect: true + }; + this.maintainAspectRatio = true; + this.onHover = null; + this.onClick = null; + this.parsing = true; + this.plugins = {}; + this.responsive = true; + this.scale = undefined; + this.scales = {}; + this.showLine = true; + this.drawActiveElementsOnTop = true; + this.describe(_descriptors); + } + set(scope, values) { + return set(this, scope, values); + } + get(scope) { + return getScope$1(this, scope); + } + describe(scope, values) { + return set(descriptors, scope, values); + } + override(scope, values) { + return set(overrides, scope, values); + } + route(scope, name, targetScope, targetName) { + const scopeObject = getScope$1(this, scope); + const targetScopeObject = getScope$1(this, targetScope); + const privateName = '_' + name; + Object.defineProperties(scopeObject, { + [privateName]: { + value: scopeObject[name], + writable: true + }, + [name]: { + enumerable: true, + get() { + const local = this[privateName]; + const target = targetScopeObject[targetName]; + if (isObject(local)) { + return Object.assign({}, target, local); + } + return valueOrDefault(local, target); + }, + set(value) { + this[privateName] = value; + } + } + }); + } +} +var defaults = new Defaults({ + _scriptable: (name) => !name.startsWith('on'), + _indexable: (name) => name !== 'events', + hover: { + _fallback: 'interaction' + }, + interaction: { + _scriptable: false, + _indexable: false, + } +}); + +const PI = Math.PI; +const TAU = 2 * PI; +const PITAU = TAU + PI; +const INFINITY = Number.POSITIVE_INFINITY; +const RAD_PER_DEG = PI / 180; +const HALF_PI = PI / 2; +const QUARTER_PI = PI / 4; +const TWO_THIRDS_PI = PI * 2 / 3; +const log10 = Math.log10; +const sign = Math.sign; +function niceNum(range) { + const roundedRange = Math.round(range); + range = almostEquals(range, roundedRange, range / 1000) ? roundedRange : range; + const niceRange = Math.pow(10, Math.floor(log10(range))); + const fraction = range / niceRange; + const niceFraction = fraction <= 1 ? 1 : fraction <= 2 ? 2 : fraction <= 5 ? 5 : 10; + return niceFraction * niceRange; +} +function _factorize(value) { + const result = []; + const sqrt = Math.sqrt(value); + let i; + for (i = 1; i < sqrt; i++) { + if (value % i === 0) { + result.push(i); + result.push(value / i); + } + } + if (sqrt === (sqrt | 0)) { + result.push(sqrt); + } + result.sort((a, b) => a - b).pop(); + return result; +} +function isNumber(n) { + return !isNaN(parseFloat(n)) && isFinite(n); +} +function almostEquals(x, y, epsilon) { + return Math.abs(x - y) < epsilon; +} +function almostWhole(x, epsilon) { + const rounded = Math.round(x); + return ((rounded - epsilon) <= x) && ((rounded + epsilon) >= x); +} +function _setMinAndMaxByKey(array, target, property) { + let i, ilen, value; + for (i = 0, ilen = array.length; i < ilen; i++) { + value = array[i][property]; + if (!isNaN(value)) { + target.min = Math.min(target.min, value); + target.max = Math.max(target.max, value); + } + } +} +function toRadians(degrees) { + return degrees * (PI / 180); +} +function toDegrees(radians) { + return radians * (180 / PI); +} +function _decimalPlaces(x) { + if (!isNumberFinite(x)) { + return; + } + let e = 1; + let p = 0; + while (Math.round(x * e) / e !== x) { + e *= 10; + p++; + } + return p; +} +function getAngleFromPoint(centrePoint, anglePoint) { + const distanceFromXCenter = anglePoint.x - centrePoint.x; + const distanceFromYCenter = anglePoint.y - centrePoint.y; + const radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter); + let angle = Math.atan2(distanceFromYCenter, distanceFromXCenter); + if (angle < (-0.5 * PI)) { + angle += TAU; + } + return { + angle, + distance: radialDistanceFromCenter + }; +} +function distanceBetweenPoints(pt1, pt2) { + return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2)); +} +function _angleDiff(a, b) { + return (a - b + PITAU) % TAU - PI; +} +function _normalizeAngle(a) { + return (a % TAU + TAU) % TAU; +} +function _angleBetween(angle, start, end, sameAngleIsFullCircle) { + const a = _normalizeAngle(angle); + const s = _normalizeAngle(start); + const e = _normalizeAngle(end); + const angleToStart = _normalizeAngle(s - a); + const angleToEnd = _normalizeAngle(e - a); + const startToAngle = _normalizeAngle(a - s); + const endToAngle = _normalizeAngle(a - e); + return a === s || a === e || (sameAngleIsFullCircle && s === e) + || (angleToStart > angleToEnd && startToAngle < endToAngle); +} +function _limitValue(value, min, max) { + return Math.max(min, Math.min(max, value)); +} +function _int16Range(value) { + return _limitValue(value, -32768, 32767); +} +function _isBetween(value, start, end, epsilon = 1e-6) { + return value >= Math.min(start, end) - epsilon && value <= Math.max(start, end) + epsilon; +} + +function toFontString(font) { + if (!font || isNullOrUndef(font.size) || isNullOrUndef(font.family)) { + return null; + } + return (font.style ? font.style + ' ' : '') + + (font.weight ? font.weight + ' ' : '') + + font.size + 'px ' + + font.family; +} +function _measureText(ctx, data, gc, longest, string) { + let textWidth = data[string]; + if (!textWidth) { + textWidth = data[string] = ctx.measureText(string).width; + gc.push(string); + } + if (textWidth > longest) { + longest = textWidth; + } + return longest; +} +function _longestText(ctx, font, arrayOfThings, cache) { + cache = cache || {}; + let data = cache.data = cache.data || {}; + let gc = cache.garbageCollect = cache.garbageCollect || []; + if (cache.font !== font) { + data = cache.data = {}; + gc = cache.garbageCollect = []; + cache.font = font; + } + ctx.save(); + ctx.font = font; + let longest = 0; + const ilen = arrayOfThings.length; + let i, j, jlen, thing, nestedThing; + for (i = 0; i < ilen; i++) { + thing = arrayOfThings[i]; + if (thing !== undefined && thing !== null && isArray(thing) !== true) { + longest = _measureText(ctx, data, gc, longest, thing); + } else if (isArray(thing)) { + for (j = 0, jlen = thing.length; j < jlen; j++) { + nestedThing = thing[j]; + if (nestedThing !== undefined && nestedThing !== null && !isArray(nestedThing)) { + longest = _measureText(ctx, data, gc, longest, nestedThing); + } + } + } + } + ctx.restore(); + const gcLen = gc.length / 2; + if (gcLen > arrayOfThings.length) { + for (i = 0; i < gcLen; i++) { + delete data[gc[i]]; + } + gc.splice(0, gcLen); + } + return longest; +} +function _alignPixel(chart, pixel, width) { + const devicePixelRatio = chart.currentDevicePixelRatio; + const halfWidth = width !== 0 ? Math.max(width / 2, 0.5) : 0; + return Math.round((pixel - halfWidth) * devicePixelRatio) / devicePixelRatio + halfWidth; +} +function clearCanvas(canvas, ctx) { + ctx = ctx || canvas.getContext('2d'); + ctx.save(); + ctx.resetTransform(); + ctx.clearRect(0, 0, canvas.width, canvas.height); + ctx.restore(); +} +function drawPoint(ctx, options, x, y) { + let type, xOffset, yOffset, size, cornerRadius; + const style = options.pointStyle; + const rotation = options.rotation; + const radius = options.radius; + let rad = (rotation || 0) * RAD_PER_DEG; + if (style && typeof style === 'object') { + type = style.toString(); + if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') { + ctx.save(); + ctx.translate(x, y); + ctx.rotate(rad); + ctx.drawImage(style, -style.width / 2, -style.height / 2, style.width, style.height); + ctx.restore(); + return; + } + } + if (isNaN(radius) || radius <= 0) { + return; + } + ctx.beginPath(); + switch (style) { + default: + ctx.arc(x, y, radius, 0, TAU); + ctx.closePath(); + break; + case 'triangle': + ctx.moveTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius); + rad += TWO_THIRDS_PI; + ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius); + rad += TWO_THIRDS_PI; + ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius); + ctx.closePath(); + break; + case 'rectRounded': + cornerRadius = radius * 0.516; + size = radius - cornerRadius; + xOffset = Math.cos(rad + QUARTER_PI) * size; + yOffset = Math.sin(rad + QUARTER_PI) * size; + ctx.arc(x - xOffset, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI); + ctx.arc(x + yOffset, y - xOffset, cornerRadius, rad - HALF_PI, rad); + ctx.arc(x + xOffset, y + yOffset, cornerRadius, rad, rad + HALF_PI); + ctx.arc(x - yOffset, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI); + ctx.closePath(); + break; + case 'rect': + if (!rotation) { + size = Math.SQRT1_2 * radius; + ctx.rect(x - size, y - size, 2 * size, 2 * size); + break; + } + rad += QUARTER_PI; + case 'rectRot': + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + yOffset, y - xOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.lineTo(x - yOffset, y + xOffset); + ctx.closePath(); + break; + case 'crossRot': + rad += QUARTER_PI; + case 'cross': + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.moveTo(x + yOffset, y - xOffset); + ctx.lineTo(x - yOffset, y + xOffset); + break; + case 'star': + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.moveTo(x + yOffset, y - xOffset); + ctx.lineTo(x - yOffset, y + xOffset); + rad += QUARTER_PI; + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.moveTo(x + yOffset, y - xOffset); + ctx.lineTo(x - yOffset, y + xOffset); + break; + case 'line': + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + break; + case 'dash': + ctx.moveTo(x, y); + ctx.lineTo(x + Math.cos(rad) * radius, y + Math.sin(rad) * radius); + break; + } + ctx.fill(); + if (options.borderWidth > 0) { + ctx.stroke(); + } +} +function _isPointInArea(point, area, margin) { + margin = margin || 0.5; + return !area || (point && point.x > area.left - margin && point.x < area.right + margin && + point.y > area.top - margin && point.y < area.bottom + margin); +} +function clipArea(ctx, area) { + ctx.save(); + ctx.beginPath(); + ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top); + ctx.clip(); +} +function unclipArea(ctx) { + ctx.restore(); +} +function _steppedLineTo(ctx, previous, target, flip, mode) { + if (!previous) { + return ctx.lineTo(target.x, target.y); + } + if (mode === 'middle') { + const midpoint = (previous.x + target.x) / 2.0; + ctx.lineTo(midpoint, previous.y); + ctx.lineTo(midpoint, target.y); + } else if (mode === 'after' !== !!flip) { + ctx.lineTo(previous.x, target.y); + } else { + ctx.lineTo(target.x, previous.y); + } + ctx.lineTo(target.x, target.y); +} +function _bezierCurveTo(ctx, previous, target, flip) { + if (!previous) { + return ctx.lineTo(target.x, target.y); + } + ctx.bezierCurveTo( + flip ? previous.cp1x : previous.cp2x, + flip ? previous.cp1y : previous.cp2y, + flip ? target.cp2x : target.cp1x, + flip ? target.cp2y : target.cp1y, + target.x, + target.y); +} +function renderText(ctx, text, x, y, font, opts = {}) { + const lines = isArray(text) ? text : [text]; + const stroke = opts.strokeWidth > 0 && opts.strokeColor !== ''; + let i, line; + ctx.save(); + ctx.font = font.string; + setRenderOpts(ctx, opts); + for (i = 0; i < lines.length; ++i) { + line = lines[i]; + if (stroke) { + if (opts.strokeColor) { + ctx.strokeStyle = opts.strokeColor; + } + if (!isNullOrUndef(opts.strokeWidth)) { + ctx.lineWidth = opts.strokeWidth; + } + ctx.strokeText(line, x, y, opts.maxWidth); + } + ctx.fillText(line, x, y, opts.maxWidth); + decorateText(ctx, x, y, line, opts); + y += font.lineHeight; + } + ctx.restore(); +} +function setRenderOpts(ctx, opts) { + if (opts.translation) { + ctx.translate(opts.translation[0], opts.translation[1]); + } + if (!isNullOrUndef(opts.rotation)) { + ctx.rotate(opts.rotation); + } + if (opts.color) { + ctx.fillStyle = opts.color; + } + if (opts.textAlign) { + ctx.textAlign = opts.textAlign; + } + if (opts.textBaseline) { + ctx.textBaseline = opts.textBaseline; + } +} +function decorateText(ctx, x, y, line, opts) { + if (opts.strikethrough || opts.underline) { + const metrics = ctx.measureText(line); + const left = x - metrics.actualBoundingBoxLeft; + const right = x + metrics.actualBoundingBoxRight; + const top = y - metrics.actualBoundingBoxAscent; + const bottom = y + metrics.actualBoundingBoxDescent; + const yDecoration = opts.strikethrough ? (top + bottom) / 2 : bottom; + ctx.strokeStyle = ctx.fillStyle; + ctx.beginPath(); + ctx.lineWidth = opts.decorationWidth || 2; + ctx.moveTo(left, yDecoration); + ctx.lineTo(right, yDecoration); + ctx.stroke(); + } +} +function addRoundedRectPath(ctx, rect) { + const {x, y, w, h, radius} = rect; + ctx.arc(x + radius.topLeft, y + radius.topLeft, radius.topLeft, -HALF_PI, PI, true); + ctx.lineTo(x, y + h - radius.bottomLeft); + ctx.arc(x + radius.bottomLeft, y + h - radius.bottomLeft, radius.bottomLeft, PI, HALF_PI, true); + ctx.lineTo(x + w - radius.bottomRight, y + h); + ctx.arc(x + w - radius.bottomRight, y + h - radius.bottomRight, radius.bottomRight, HALF_PI, 0, true); + ctx.lineTo(x + w, y + radius.topRight); + ctx.arc(x + w - radius.topRight, y + radius.topRight, radius.topRight, 0, -HALF_PI, true); + ctx.lineTo(x + radius.topLeft, y); +} + +function _lookup(table, value, cmp) { + cmp = cmp || ((index) => table[index] < value); + let hi = table.length - 1; + let lo = 0; + let mid; + while (hi - lo > 1) { + mid = (lo + hi) >> 1; + if (cmp(mid)) { + lo = mid; + } else { + hi = mid; + } + } + return {lo, hi}; +} +const _lookupByKey = (table, key, value) => + _lookup(table, value, index => table[index][key] < value); +const _rlookupByKey = (table, key, value) => + _lookup(table, value, index => table[index][key] >= value); +function _filterBetween(values, min, max) { + let start = 0; + let end = values.length; + while (start < end && values[start] < min) { + start++; + } + while (end > start && values[end - 1] > max) { + end--; + } + return start > 0 || end < values.length + ? values.slice(start, end) + : values; +} +const arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift']; +function listenArrayEvents(array, listener) { + if (array._chartjs) { + array._chartjs.listeners.push(listener); + return; + } + Object.defineProperty(array, '_chartjs', { + configurable: true, + enumerable: false, + value: { + listeners: [listener] + } + }); + arrayEvents.forEach((key) => { + const method = '_onData' + _capitalize(key); + const base = array[key]; + Object.defineProperty(array, key, { + configurable: true, + enumerable: false, + value(...args) { + const res = base.apply(this, args); + array._chartjs.listeners.forEach((object) => { + if (typeof object[method] === 'function') { + object[method](...args); + } + }); + return res; + } + }); + }); +} +function unlistenArrayEvents(array, listener) { + const stub = array._chartjs; + if (!stub) { + return; + } + const listeners = stub.listeners; + const index = listeners.indexOf(listener); + if (index !== -1) { + listeners.splice(index, 1); + } + if (listeners.length > 0) { + return; + } + arrayEvents.forEach((key) => { + delete array[key]; + }); + delete array._chartjs; +} +function _arrayUnique(items) { + const set = new Set(); + let i, ilen; + for (i = 0, ilen = items.length; i < ilen; ++i) { + set.add(items[i]); + } + if (set.size === ilen) { + return items; + } + return Array.from(set); +} + +function _isDomSupported() { + return typeof window !== 'undefined' && typeof document !== 'undefined'; +} +function _getParentNode(domNode) { + let parent = domNode.parentNode; + if (parent && parent.toString() === '[object ShadowRoot]') { + parent = parent.host; + } + return parent; +} +function parseMaxStyle(styleValue, node, parentProperty) { + let valueInPixels; + if (typeof styleValue === 'string') { + valueInPixels = parseInt(styleValue, 10); + if (styleValue.indexOf('%') !== -1) { + valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty]; + } + } else { + valueInPixels = styleValue; + } + return valueInPixels; +} +const getComputedStyle = (element) => window.getComputedStyle(element, null); +function getStyle(el, property) { + return getComputedStyle(el).getPropertyValue(property); +} +const positions = ['top', 'right', 'bottom', 'left']; +function getPositionedStyle(styles, style, suffix) { + const result = {}; + suffix = suffix ? '-' + suffix : ''; + for (let i = 0; i < 4; i++) { + const pos = positions[i]; + result[pos] = parseFloat(styles[style + '-' + pos + suffix]) || 0; + } + result.width = result.left + result.right; + result.height = result.top + result.bottom; + return result; +} +const useOffsetPos = (x, y, target) => (x > 0 || y > 0) && (!target || !target.shadowRoot); +function getCanvasPosition(evt, canvas) { + const e = evt.native || evt; + const touches = e.touches; + const source = touches && touches.length ? touches[0] : e; + const {offsetX, offsetY} = source; + let box = false; + let x, y; + if (useOffsetPos(offsetX, offsetY, e.target)) { + x = offsetX; + y = offsetY; + } else { + const rect = canvas.getBoundingClientRect(); + x = source.clientX - rect.left; + y = source.clientY - rect.top; + box = true; + } + return {x, y, box}; +} +function getRelativePosition$1(evt, chart) { + const {canvas, currentDevicePixelRatio} = chart; + const style = getComputedStyle(canvas); + const borderBox = style.boxSizing === 'border-box'; + const paddings = getPositionedStyle(style, 'padding'); + const borders = getPositionedStyle(style, 'border', 'width'); + const {x, y, box} = getCanvasPosition(evt, canvas); + const xOffset = paddings.left + (box && borders.left); + const yOffset = paddings.top + (box && borders.top); + let {width, height} = chart; + if (borderBox) { + width -= paddings.width + borders.width; + height -= paddings.height + borders.height; + } + return { + x: Math.round((x - xOffset) / width * canvas.width / currentDevicePixelRatio), + y: Math.round((y - yOffset) / height * canvas.height / currentDevicePixelRatio) + }; +} +function getContainerSize(canvas, width, height) { + let maxWidth, maxHeight; + if (width === undefined || height === undefined) { + const container = _getParentNode(canvas); + if (!container) { + width = canvas.clientWidth; + height = canvas.clientHeight; + } else { + const rect = container.getBoundingClientRect(); + const containerStyle = getComputedStyle(container); + const containerBorder = getPositionedStyle(containerStyle, 'border', 'width'); + const containerPadding = getPositionedStyle(containerStyle, 'padding'); + width = rect.width - containerPadding.width - containerBorder.width; + height = rect.height - containerPadding.height - containerBorder.height; + maxWidth = parseMaxStyle(containerStyle.maxWidth, container, 'clientWidth'); + maxHeight = parseMaxStyle(containerStyle.maxHeight, container, 'clientHeight'); + } + } + return { + width, + height, + maxWidth: maxWidth || INFINITY, + maxHeight: maxHeight || INFINITY + }; +} +const round1 = v => Math.round(v * 10) / 10; +function getMaximumSize(canvas, bbWidth, bbHeight, aspectRatio) { + const style = getComputedStyle(canvas); + const margins = getPositionedStyle(style, 'margin'); + const maxWidth = parseMaxStyle(style.maxWidth, canvas, 'clientWidth') || INFINITY; + const maxHeight = parseMaxStyle(style.maxHeight, canvas, 'clientHeight') || INFINITY; + const containerSize = getContainerSize(canvas, bbWidth, bbHeight); + let {width, height} = containerSize; + if (style.boxSizing === 'content-box') { + const borders = getPositionedStyle(style, 'border', 'width'); + const paddings = getPositionedStyle(style, 'padding'); + width -= paddings.width + borders.width; + height -= paddings.height + borders.height; + } + width = Math.max(0, width - margins.width); + height = Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height - margins.height); + width = round1(Math.min(width, maxWidth, containerSize.maxWidth)); + height = round1(Math.min(height, maxHeight, containerSize.maxHeight)); + if (width && !height) { + height = round1(width / 2); + } + return { + width, + height + }; +} +function retinaScale(chart, forceRatio, forceStyle) { + const pixelRatio = forceRatio || 1; + const deviceHeight = Math.floor(chart.height * pixelRatio); + const deviceWidth = Math.floor(chart.width * pixelRatio); + chart.height = deviceHeight / pixelRatio; + chart.width = deviceWidth / pixelRatio; + const canvas = chart.canvas; + if (canvas.style && (forceStyle || (!canvas.style.height && !canvas.style.width))) { + canvas.style.height = `${chart.height}px`; + canvas.style.width = `${chart.width}px`; + } + if (chart.currentDevicePixelRatio !== pixelRatio + || canvas.height !== deviceHeight + || canvas.width !== deviceWidth) { + chart.currentDevicePixelRatio = pixelRatio; + canvas.height = deviceHeight; + canvas.width = deviceWidth; + chart.ctx.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0); + return true; + } + return false; +} +const supportsEventListenerOptions = (function() { + let passiveSupported = false; + try { + const options = { + get passive() { + passiveSupported = true; + return false; + } + }; + window.addEventListener('test', null, options); + window.removeEventListener('test', null, options); + } catch (e) { + } + return passiveSupported; +}()); +function readUsedSize(element, property) { + const value = getStyle(element, property); + const matches = value && value.match(/^(\d+)(\.\d+)?px$/); + return matches ? +matches[1] : undefined; +} + +function getRelativePosition(e, chart) { + if ('native' in e) { + return { + x: e.x, + y: e.y + }; + } + return getRelativePosition$1(e, chart); +} +function evaluateAllVisibleItems(chart, handler) { + const metasets = chart.getSortedVisibleDatasetMetas(); + let index, data, element; + for (let i = 0, ilen = metasets.length; i < ilen; ++i) { + ({index, data} = metasets[i]); + for (let j = 0, jlen = data.length; j < jlen; ++j) { + element = data[j]; + if (!element.skip) { + handler(element, index, j); + } + } + } +} +function binarySearch(metaset, axis, value, intersect) { + const {controller, data, _sorted} = metaset; + const iScale = controller._cachedMeta.iScale; + if (iScale && axis === iScale.axis && axis !== 'r' && _sorted && data.length) { + const lookupMethod = iScale._reversePixels ? _rlookupByKey : _lookupByKey; + if (!intersect) { + return lookupMethod(data, axis, value); + } else if (controller._sharedOptions) { + const el = data[0]; + const range = typeof el.getRange === 'function' && el.getRange(axis); + if (range) { + const start = lookupMethod(data, axis, value - range); + const end = lookupMethod(data, axis, value + range); + return {lo: start.lo, hi: end.hi}; + } + } + } + return {lo: 0, hi: data.length - 1}; +} +function optimizedEvaluateItems(chart, axis, position, handler, intersect) { + const metasets = chart.getSortedVisibleDatasetMetas(); + const value = position[axis]; + for (let i = 0, ilen = metasets.length; i < ilen; ++i) { + const {index, data} = metasets[i]; + const {lo, hi} = binarySearch(metasets[i], axis, value, intersect); + for (let j = lo; j <= hi; ++j) { + const element = data[j]; + if (!element.skip) { + handler(element, index, j); + } + } + } +} +function getDistanceMetricForAxis(axis) { + const useX = axis.indexOf('x') !== -1; + const useY = axis.indexOf('y') !== -1; + return function(pt1, pt2) { + const deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0; + const deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0; + return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2)); + }; +} +function getIntersectItems(chart, position, axis, useFinalPosition) { + const items = []; + if (!_isPointInArea(position, chart.chartArea, chart._minPadding)) { + return items; + } + const evaluationFunc = function(element, datasetIndex, index) { + if (element.inRange(position.x, position.y, useFinalPosition)) { + items.push({element, datasetIndex, index}); + } + }; + optimizedEvaluateItems(chart, axis, position, evaluationFunc, true); + return items; +} +function getNearestRadialItems(chart, position, axis, useFinalPosition) { + let items = []; + function evaluationFunc(element, datasetIndex, index) { + const {startAngle, endAngle} = element.getProps(['startAngle', 'endAngle'], useFinalPosition); + const {angle} = getAngleFromPoint(element, {x: position.x, y: position.y}); + if (_angleBetween(angle, startAngle, endAngle)) { + items.push({element, datasetIndex, index}); + } + } + optimizedEvaluateItems(chart, axis, position, evaluationFunc); + return items; +} +function getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition) { + let items = []; + const distanceMetric = getDistanceMetricForAxis(axis); + let minDistance = Number.POSITIVE_INFINITY; + function evaluationFunc(element, datasetIndex, index) { + const inRange = element.inRange(position.x, position.y, useFinalPosition); + if (intersect && !inRange) { + return; + } + const center = element.getCenterPoint(useFinalPosition); + const pointInArea = _isPointInArea(center, chart.chartArea, chart._minPadding); + if (!pointInArea && !inRange) { + return; + } + const distance = distanceMetric(position, center); + if (distance < minDistance) { + items = [{element, datasetIndex, index}]; + minDistance = distance; + } else if (distance === minDistance) { + items.push({element, datasetIndex, index}); + } + } + optimizedEvaluateItems(chart, axis, position, evaluationFunc); + return items; +} +function getNearestItems(chart, position, axis, intersect, useFinalPosition) { + if (!_isPointInArea(position, chart.chartArea, chart._minPadding)) { + return []; + } + return axis === 'r' && !intersect + ? getNearestRadialItems(chart, position, axis, useFinalPosition) + : getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition); +} +function getAxisItems(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const items = []; + const axis = options.axis; + const rangeMethod = axis === 'x' ? 'inXRange' : 'inYRange'; + let intersectsItem = false; + evaluateAllVisibleItems(chart, (element, datasetIndex, index) => { + if (element[rangeMethod](position[axis], useFinalPosition)) { + items.push({element, datasetIndex, index}); + } + if (element.inRange(position.x, position.y, useFinalPosition)) { + intersectsItem = true; + } + }); + if (options.intersect && !intersectsItem) { + return []; + } + return items; +} +var Interaction = { + modes: { + index(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'x'; + const items = options.intersect + ? getIntersectItems(chart, position, axis, useFinalPosition) + : getNearestItems(chart, position, axis, false, useFinalPosition); + const elements = []; + if (!items.length) { + return []; + } + chart.getSortedVisibleDatasetMetas().forEach((meta) => { + const index = items[0].index; + const element = meta.data[index]; + if (element && !element.skip) { + elements.push({element, datasetIndex: meta.index, index}); + } + }); + return elements; + }, + dataset(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'xy'; + let items = options.intersect + ? getIntersectItems(chart, position, axis, useFinalPosition) : + getNearestItems(chart, position, axis, false, useFinalPosition); + if (items.length > 0) { + const datasetIndex = items[0].datasetIndex; + const data = chart.getDatasetMeta(datasetIndex).data; + items = []; + for (let i = 0; i < data.length; ++i) { + items.push({element: data[i], datasetIndex, index: i}); + } + } + return items; + }, + point(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'xy'; + return getIntersectItems(chart, position, axis, useFinalPosition); + }, + nearest(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'xy'; + return getNearestItems(chart, position, axis, options.intersect, useFinalPosition); + }, + x(chart, e, options, useFinalPosition) { + return getAxisItems(chart, e, {axis: 'x', intersect: options.intersect}, useFinalPosition); + }, + y(chart, e, options, useFinalPosition) { + return getAxisItems(chart, e, {axis: 'y', intersect: options.intersect}, useFinalPosition); + } + } +}; + +const LINE_HEIGHT = new RegExp(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/); +const FONT_STYLE = new RegExp(/^(normal|italic|initial|inherit|unset|(oblique( -?[0-9]?[0-9]deg)?))$/); +function toLineHeight(value, size) { + const matches = ('' + value).match(LINE_HEIGHT); + if (!matches || matches[1] === 'normal') { + return size * 1.2; + } + value = +matches[2]; + switch (matches[3]) { + case 'px': + return value; + case '%': + value /= 100; + break; + } + return size * value; +} +const numberOrZero = v => +v || 0; +function _readValueToProps(value, props) { + const ret = {}; + const objProps = isObject(props); + const keys = objProps ? Object.keys(props) : props; + const read = isObject(value) + ? objProps + ? prop => valueOrDefault(value[prop], value[props[prop]]) + : prop => value[prop] + : () => value; + for (const prop of keys) { + ret[prop] = numberOrZero(read(prop)); + } + return ret; +} +function toTRBL(value) { + return _readValueToProps(value, {top: 'y', right: 'x', bottom: 'y', left: 'x'}); +} +function toTRBLCorners(value) { + return _readValueToProps(value, ['topLeft', 'topRight', 'bottomLeft', 'bottomRight']); +} +function toPadding(value) { + const obj = toTRBL(value); + obj.width = obj.left + obj.right; + obj.height = obj.top + obj.bottom; + return obj; +} +function toFont(options, fallback) { + options = options || {}; + fallback = fallback || defaults.font; + let size = valueOrDefault(options.size, fallback.size); + if (typeof size === 'string') { + size = parseInt(size, 10); + } + let style = valueOrDefault(options.style, fallback.style); + if (style && !('' + style).match(FONT_STYLE)) { + console.warn('Invalid font style specified: "' + style + '"'); + style = ''; + } + const font = { + family: valueOrDefault(options.family, fallback.family), + lineHeight: toLineHeight(valueOrDefault(options.lineHeight, fallback.lineHeight), size), + size, + style, + weight: valueOrDefault(options.weight, fallback.weight), + string: '' + }; + font.string = toFontString(font); + return font; +} +function resolve(inputs, context, index, info) { + let cacheable = true; + let i, ilen, value; + for (i = 0, ilen = inputs.length; i < ilen; ++i) { + value = inputs[i]; + if (value === undefined) { + continue; + } + if (context !== undefined && typeof value === 'function') { + value = value(context); + cacheable = false; + } + if (index !== undefined && isArray(value)) { + value = value[index % value.length]; + cacheable = false; + } + if (value !== undefined) { + if (info && !cacheable) { + info.cacheable = false; + } + return value; + } + } +} +function _addGrace(minmax, grace, beginAtZero) { + const {min, max} = minmax; + const change = toDimension(grace, (max - min) / 2); + const keepZero = (value, add) => beginAtZero && value === 0 ? 0 : value + add; + return { + min: keepZero(min, -Math.abs(change)), + max: keepZero(max, change) + }; +} +function createContext(parentContext, context) { + return Object.assign(Object.create(parentContext), context); +} + +const STATIC_POSITIONS = ['left', 'top', 'right', 'bottom']; +function filterByPosition(array, position) { + return array.filter(v => v.pos === position); +} +function filterDynamicPositionByAxis(array, axis) { + return array.filter(v => STATIC_POSITIONS.indexOf(v.pos) === -1 && v.box.axis === axis); +} +function sortByWeight(array, reverse) { + return array.sort((a, b) => { + const v0 = reverse ? b : a; + const v1 = reverse ? a : b; + return v0.weight === v1.weight ? + v0.index - v1.index : + v0.weight - v1.weight; + }); +} +function wrapBoxes(boxes) { + const layoutBoxes = []; + let i, ilen, box, pos, stack, stackWeight; + for (i = 0, ilen = (boxes || []).length; i < ilen; ++i) { + box = boxes[i]; + ({position: pos, options: {stack, stackWeight = 1}} = box); + layoutBoxes.push({ + index: i, + box, + pos, + horizontal: box.isHorizontal(), + weight: box.weight, + stack: stack && (pos + stack), + stackWeight + }); + } + return layoutBoxes; +} +function buildStacks(layouts) { + const stacks = {}; + for (const wrap of layouts) { + const {stack, pos, stackWeight} = wrap; + if (!stack || !STATIC_POSITIONS.includes(pos)) { + continue; + } + const _stack = stacks[stack] || (stacks[stack] = {count: 0, placed: 0, weight: 0, size: 0}); + _stack.count++; + _stack.weight += stackWeight; + } + return stacks; +} +function setLayoutDims(layouts, params) { + const stacks = buildStacks(layouts); + const {vBoxMaxWidth, hBoxMaxHeight} = params; + let i, ilen, layout; + for (i = 0, ilen = layouts.length; i < ilen; ++i) { + layout = layouts[i]; + const {fullSize} = layout.box; + const stack = stacks[layout.stack]; + const factor = stack && layout.stackWeight / stack.weight; + if (layout.horizontal) { + layout.width = factor ? factor * vBoxMaxWidth : fullSize && params.availableWidth; + layout.height = hBoxMaxHeight; + } else { + layout.width = vBoxMaxWidth; + layout.height = factor ? factor * hBoxMaxHeight : fullSize && params.availableHeight; + } + } + return stacks; +} +function buildLayoutBoxes(boxes) { + const layoutBoxes = wrapBoxes(boxes); + const fullSize = sortByWeight(layoutBoxes.filter(wrap => wrap.box.fullSize), true); + const left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true); + const right = sortByWeight(filterByPosition(layoutBoxes, 'right')); + const top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true); + const bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom')); + const centerHorizontal = filterDynamicPositionByAxis(layoutBoxes, 'x'); + const centerVertical = filterDynamicPositionByAxis(layoutBoxes, 'y'); + return { + fullSize, + leftAndTop: left.concat(top), + rightAndBottom: right.concat(centerVertical).concat(bottom).concat(centerHorizontal), + chartArea: filterByPosition(layoutBoxes, 'chartArea'), + vertical: left.concat(right).concat(centerVertical), + horizontal: top.concat(bottom).concat(centerHorizontal) + }; +} +function getCombinedMax(maxPadding, chartArea, a, b) { + return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]); +} +function updateMaxPadding(maxPadding, boxPadding) { + maxPadding.top = Math.max(maxPadding.top, boxPadding.top); + maxPadding.left = Math.max(maxPadding.left, boxPadding.left); + maxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom); + maxPadding.right = Math.max(maxPadding.right, boxPadding.right); +} +function updateDims(chartArea, params, layout, stacks) { + const {pos, box} = layout; + const maxPadding = chartArea.maxPadding; + if (!isObject(pos)) { + if (layout.size) { + chartArea[pos] -= layout.size; + } + const stack = stacks[layout.stack] || {size: 0, count: 1}; + stack.size = Math.max(stack.size, layout.horizontal ? box.height : box.width); + layout.size = stack.size / stack.count; + chartArea[pos] += layout.size; + } + if (box.getPadding) { + updateMaxPadding(maxPadding, box.getPadding()); + } + const newWidth = Math.max(0, params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right')); + const newHeight = Math.max(0, params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom')); + const widthChanged = newWidth !== chartArea.w; + const heightChanged = newHeight !== chartArea.h; + chartArea.w = newWidth; + chartArea.h = newHeight; + return layout.horizontal + ? {same: widthChanged, other: heightChanged} + : {same: heightChanged, other: widthChanged}; +} +function handleMaxPadding(chartArea) { + const maxPadding = chartArea.maxPadding; + function updatePos(pos) { + const change = Math.max(maxPadding[pos] - chartArea[pos], 0); + chartArea[pos] += change; + return change; + } + chartArea.y += updatePos('top'); + chartArea.x += updatePos('left'); + updatePos('right'); + updatePos('bottom'); +} +function getMargins(horizontal, chartArea) { + const maxPadding = chartArea.maxPadding; + function marginForPositions(positions) { + const margin = {left: 0, top: 0, right: 0, bottom: 0}; + positions.forEach((pos) => { + margin[pos] = Math.max(chartArea[pos], maxPadding[pos]); + }); + return margin; + } + return horizontal + ? marginForPositions(['left', 'right']) + : marginForPositions(['top', 'bottom']); +} +function fitBoxes(boxes, chartArea, params, stacks) { + const refitBoxes = []; + let i, ilen, layout, box, refit, changed; + for (i = 0, ilen = boxes.length, refit = 0; i < ilen; ++i) { + layout = boxes[i]; + box = layout.box; + box.update( + layout.width || chartArea.w, + layout.height || chartArea.h, + getMargins(layout.horizontal, chartArea) + ); + const {same, other} = updateDims(chartArea, params, layout, stacks); + refit |= same && refitBoxes.length; + changed = changed || other; + if (!box.fullSize) { + refitBoxes.push(layout); + } + } + return refit && fitBoxes(refitBoxes, chartArea, params, stacks) || changed; +} +function setBoxDims(box, left, top, width, height) { + box.top = top; + box.left = left; + box.right = left + width; + box.bottom = top + height; + box.width = width; + box.height = height; +} +function placeBoxes(boxes, chartArea, params, stacks) { + const userPadding = params.padding; + let {x, y} = chartArea; + for (const layout of boxes) { + const box = layout.box; + const stack = stacks[layout.stack] || {count: 1, placed: 0, weight: 1}; + const weight = (layout.stackWeight / stack.weight) || 1; + if (layout.horizontal) { + const width = chartArea.w * weight; + const height = stack.size || box.height; + if (defined(stack.start)) { + y = stack.start; + } + if (box.fullSize) { + setBoxDims(box, userPadding.left, y, params.outerWidth - userPadding.right - userPadding.left, height); + } else { + setBoxDims(box, chartArea.left + stack.placed, y, width, height); + } + stack.start = y; + stack.placed += width; + y = box.bottom; + } else { + const height = chartArea.h * weight; + const width = stack.size || box.width; + if (defined(stack.start)) { + x = stack.start; + } + if (box.fullSize) { + setBoxDims(box, x, userPadding.top, width, params.outerHeight - userPadding.bottom - userPadding.top); + } else { + setBoxDims(box, x, chartArea.top + stack.placed, width, height); + } + stack.start = x; + stack.placed += height; + x = box.right; + } + } + chartArea.x = x; + chartArea.y = y; +} +defaults.set('layout', { + autoPadding: true, + padding: { + top: 0, + right: 0, + bottom: 0, + left: 0 + } +}); +var layouts = { + addBox(chart, item) { + if (!chart.boxes) { + chart.boxes = []; + } + item.fullSize = item.fullSize || false; + item.position = item.position || 'top'; + item.weight = item.weight || 0; + item._layers = item._layers || function() { + return [{ + z: 0, + draw(chartArea) { + item.draw(chartArea); + } + }]; + }; + chart.boxes.push(item); + }, + removeBox(chart, layoutItem) { + const index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1; + if (index !== -1) { + chart.boxes.splice(index, 1); + } + }, + configure(chart, item, options) { + item.fullSize = options.fullSize; + item.position = options.position; + item.weight = options.weight; + }, + update(chart, width, height, minPadding) { + if (!chart) { + return; + } + const padding = toPadding(chart.options.layout.padding); + const availableWidth = Math.max(width - padding.width, 0); + const availableHeight = Math.max(height - padding.height, 0); + const boxes = buildLayoutBoxes(chart.boxes); + const verticalBoxes = boxes.vertical; + const horizontalBoxes = boxes.horizontal; + each(chart.boxes, box => { + if (typeof box.beforeLayout === 'function') { + box.beforeLayout(); + } + }); + const visibleVerticalBoxCount = verticalBoxes.reduce((total, wrap) => + wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0) || 1; + const params = Object.freeze({ + outerWidth: width, + outerHeight: height, + padding, + availableWidth, + availableHeight, + vBoxMaxWidth: availableWidth / 2 / visibleVerticalBoxCount, + hBoxMaxHeight: availableHeight / 2 + }); + const maxPadding = Object.assign({}, padding); + updateMaxPadding(maxPadding, toPadding(minPadding)); + const chartArea = Object.assign({ + maxPadding, + w: availableWidth, + h: availableHeight, + x: padding.left, + y: padding.top + }, padding); + const stacks = setLayoutDims(verticalBoxes.concat(horizontalBoxes), params); + fitBoxes(boxes.fullSize, chartArea, params, stacks); + fitBoxes(verticalBoxes, chartArea, params, stacks); + if (fitBoxes(horizontalBoxes, chartArea, params, stacks)) { + fitBoxes(verticalBoxes, chartArea, params, stacks); + } + handleMaxPadding(chartArea); + placeBoxes(boxes.leftAndTop, chartArea, params, stacks); + chartArea.x += chartArea.w; + chartArea.y += chartArea.h; + placeBoxes(boxes.rightAndBottom, chartArea, params, stacks); + chart.chartArea = { + left: chartArea.left, + top: chartArea.top, + right: chartArea.left + chartArea.w, + bottom: chartArea.top + chartArea.h, + height: chartArea.h, + width: chartArea.w, + }; + each(boxes.chartArea, (layout) => { + const box = layout.box; + Object.assign(box, chart.chartArea); + box.update(chartArea.w, chartArea.h, {left: 0, top: 0, right: 0, bottom: 0}); + }); + } +}; + +function _createResolver(scopes, prefixes = [''], rootScopes = scopes, fallback, getTarget = () => scopes[0]) { + if (!defined(fallback)) { + fallback = _resolve('_fallback', scopes); + } + const cache = { + [Symbol.toStringTag]: 'Object', + _cacheable: true, + _scopes: scopes, + _rootScopes: rootScopes, + _fallback: fallback, + _getTarget: getTarget, + override: (scope) => _createResolver([scope, ...scopes], prefixes, rootScopes, fallback), + }; + return new Proxy(cache, { + deleteProperty(target, prop) { + delete target[prop]; + delete target._keys; + delete scopes[0][prop]; + return true; + }, + get(target, prop) { + return _cached(target, prop, + () => _resolveWithPrefixes(prop, prefixes, scopes, target)); + }, + getOwnPropertyDescriptor(target, prop) { + return Reflect.getOwnPropertyDescriptor(target._scopes[0], prop); + }, + getPrototypeOf() { + return Reflect.getPrototypeOf(scopes[0]); + }, + has(target, prop) { + return getKeysFromAllScopes(target).includes(prop); + }, + ownKeys(target) { + return getKeysFromAllScopes(target); + }, + set(target, prop, value) { + const storage = target._storage || (target._storage = getTarget()); + target[prop] = storage[prop] = value; + delete target._keys; + return true; + } + }); +} +function _attachContext(proxy, context, subProxy, descriptorDefaults) { + const cache = { + _cacheable: false, + _proxy: proxy, + _context: context, + _subProxy: subProxy, + _stack: new Set(), + _descriptors: _descriptors(proxy, descriptorDefaults), + setContext: (ctx) => _attachContext(proxy, ctx, subProxy, descriptorDefaults), + override: (scope) => _attachContext(proxy.override(scope), context, subProxy, descriptorDefaults) + }; + return new Proxy(cache, { + deleteProperty(target, prop) { + delete target[prop]; + delete proxy[prop]; + return true; + }, + get(target, prop, receiver) { + return _cached(target, prop, + () => _resolveWithContext(target, prop, receiver)); + }, + getOwnPropertyDescriptor(target, prop) { + return target._descriptors.allKeys + ? Reflect.has(proxy, prop) ? {enumerable: true, configurable: true} : undefined + : Reflect.getOwnPropertyDescriptor(proxy, prop); + }, + getPrototypeOf() { + return Reflect.getPrototypeOf(proxy); + }, + has(target, prop) { + return Reflect.has(proxy, prop); + }, + ownKeys() { + return Reflect.ownKeys(proxy); + }, + set(target, prop, value) { + proxy[prop] = value; + delete target[prop]; + return true; + } + }); +} +function _descriptors(proxy, defaults = {scriptable: true, indexable: true}) { + const {_scriptable = defaults.scriptable, _indexable = defaults.indexable, _allKeys = defaults.allKeys} = proxy; + return { + allKeys: _allKeys, + scriptable: _scriptable, + indexable: _indexable, + isScriptable: isFunction(_scriptable) ? _scriptable : () => _scriptable, + isIndexable: isFunction(_indexable) ? _indexable : () => _indexable + }; +} +const readKey = (prefix, name) => prefix ? prefix + _capitalize(name) : name; +const needsSubResolver = (prop, value) => isObject(value) && prop !== 'adapters' && + (Object.getPrototypeOf(value) === null || value.constructor === Object); +function _cached(target, prop, resolve) { + if (Object.prototype.hasOwnProperty.call(target, prop)) { + return target[prop]; + } + const value = resolve(); + target[prop] = value; + return value; +} +function _resolveWithContext(target, prop, receiver) { + const {_proxy, _context, _subProxy, _descriptors: descriptors} = target; + let value = _proxy[prop]; + if (isFunction(value) && descriptors.isScriptable(prop)) { + value = _resolveScriptable(prop, value, target, receiver); + } + if (isArray(value) && value.length) { + value = _resolveArray(prop, value, target, descriptors.isIndexable); + } + if (needsSubResolver(prop, value)) { + value = _attachContext(value, _context, _subProxy && _subProxy[prop], descriptors); + } + return value; +} +function _resolveScriptable(prop, value, target, receiver) { + const {_proxy, _context, _subProxy, _stack} = target; + if (_stack.has(prop)) { + throw new Error('Recursion detected: ' + Array.from(_stack).join('->') + '->' + prop); + } + _stack.add(prop); + value = value(_context, _subProxy || receiver); + _stack.delete(prop); + if (needsSubResolver(prop, value)) { + value = createSubResolver(_proxy._scopes, _proxy, prop, value); + } + return value; +} +function _resolveArray(prop, value, target, isIndexable) { + const {_proxy, _context, _subProxy, _descriptors: descriptors} = target; + if (defined(_context.index) && isIndexable(prop)) { + value = value[_context.index % value.length]; + } else if (isObject(value[0])) { + const arr = value; + const scopes = _proxy._scopes.filter(s => s !== arr); + value = []; + for (const item of arr) { + const resolver = createSubResolver(scopes, _proxy, prop, item); + value.push(_attachContext(resolver, _context, _subProxy && _subProxy[prop], descriptors)); + } + } + return value; +} +function resolveFallback(fallback, prop, value) { + return isFunction(fallback) ? fallback(prop, value) : fallback; +} +const getScope = (key, parent) => key === true ? parent + : typeof key === 'string' ? resolveObjectKey(parent, key) : undefined; +function addScopes(set, parentScopes, key, parentFallback, value) { + for (const parent of parentScopes) { + const scope = getScope(key, parent); + if (scope) { + set.add(scope); + const fallback = resolveFallback(scope._fallback, key, value); + if (defined(fallback) && fallback !== key && fallback !== parentFallback) { + return fallback; + } + } else if (scope === false && defined(parentFallback) && key !== parentFallback) { + return null; + } + } + return false; +} +function createSubResolver(parentScopes, resolver, prop, value) { + const rootScopes = resolver._rootScopes; + const fallback = resolveFallback(resolver._fallback, prop, value); + const allScopes = [...parentScopes, ...rootScopes]; + const set = new Set(); + set.add(value); + let key = addScopesFromKey(set, allScopes, prop, fallback || prop, value); + if (key === null) { + return false; + } + if (defined(fallback) && fallback !== prop) { + key = addScopesFromKey(set, allScopes, fallback, key, value); + if (key === null) { + return false; + } + } + return _createResolver(Array.from(set), [''], rootScopes, fallback, + () => subGetTarget(resolver, prop, value)); +} +function addScopesFromKey(set, allScopes, key, fallback, item) { + while (key) { + key = addScopes(set, allScopes, key, fallback, item); + } + return key; +} +function subGetTarget(resolver, prop, value) { + const parent = resolver._getTarget(); + if (!(prop in parent)) { + parent[prop] = {}; + } + const target = parent[prop]; + if (isArray(target) && isObject(value)) { + return value; + } + return target; +} +function _resolveWithPrefixes(prop, prefixes, scopes, proxy) { + let value; + for (const prefix of prefixes) { + value = _resolve(readKey(prefix, prop), scopes); + if (defined(value)) { + return needsSubResolver(prop, value) + ? createSubResolver(scopes, proxy, prop, value) + : value; + } + } +} +function _resolve(key, scopes) { + for (const scope of scopes) { + if (!scope) { + continue; + } + const value = scope[key]; + if (defined(value)) { + return value; + } + } +} +function getKeysFromAllScopes(target) { + let keys = target._keys; + if (!keys) { + keys = target._keys = resolveKeysFromAllScopes(target._scopes); + } + return keys; +} +function resolveKeysFromAllScopes(scopes) { + const set = new Set(); + for (const scope of scopes) { + for (const key of Object.keys(scope).filter(k => !k.startsWith('_'))) { + set.add(key); + } + } + return Array.from(set); +} + +const EPSILON = Number.EPSILON || 1e-14; +const getPoint = (points, i) => i < points.length && !points[i].skip && points[i]; +const getValueAxis = (indexAxis) => indexAxis === 'x' ? 'y' : 'x'; +function splineCurve(firstPoint, middlePoint, afterPoint, t) { + const previous = firstPoint.skip ? middlePoint : firstPoint; + const current = middlePoint; + const next = afterPoint.skip ? middlePoint : afterPoint; + const d01 = distanceBetweenPoints(current, previous); + const d12 = distanceBetweenPoints(next, current); + let s01 = d01 / (d01 + d12); + let s12 = d12 / (d01 + d12); + s01 = isNaN(s01) ? 0 : s01; + s12 = isNaN(s12) ? 0 : s12; + const fa = t * s01; + const fb = t * s12; + return { + previous: { + x: current.x - fa * (next.x - previous.x), + y: current.y - fa * (next.y - previous.y) + }, + next: { + x: current.x + fb * (next.x - previous.x), + y: current.y + fb * (next.y - previous.y) + } + }; +} +function monotoneAdjust(points, deltaK, mK) { + const pointsLen = points.length; + let alphaK, betaK, tauK, squaredMagnitude, pointCurrent; + let pointAfter = getPoint(points, 0); + for (let i = 0; i < pointsLen - 1; ++i) { + pointCurrent = pointAfter; + pointAfter = getPoint(points, i + 1); + if (!pointCurrent || !pointAfter) { + continue; + } + if (almostEquals(deltaK[i], 0, EPSILON)) { + mK[i] = mK[i + 1] = 0; + continue; + } + alphaK = mK[i] / deltaK[i]; + betaK = mK[i + 1] / deltaK[i]; + squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2); + if (squaredMagnitude <= 9) { + continue; + } + tauK = 3 / Math.sqrt(squaredMagnitude); + mK[i] = alphaK * tauK * deltaK[i]; + mK[i + 1] = betaK * tauK * deltaK[i]; + } +} +function monotoneCompute(points, mK, indexAxis = 'x') { + const valueAxis = getValueAxis(indexAxis); + const pointsLen = points.length; + let delta, pointBefore, pointCurrent; + let pointAfter = getPoint(points, 0); + for (let i = 0; i < pointsLen; ++i) { + pointBefore = pointCurrent; + pointCurrent = pointAfter; + pointAfter = getPoint(points, i + 1); + if (!pointCurrent) { + continue; + } + const iPixel = pointCurrent[indexAxis]; + const vPixel = pointCurrent[valueAxis]; + if (pointBefore) { + delta = (iPixel - pointBefore[indexAxis]) / 3; + pointCurrent[`cp1${indexAxis}`] = iPixel - delta; + pointCurrent[`cp1${valueAxis}`] = vPixel - delta * mK[i]; + } + if (pointAfter) { + delta = (pointAfter[indexAxis] - iPixel) / 3; + pointCurrent[`cp2${indexAxis}`] = iPixel + delta; + pointCurrent[`cp2${valueAxis}`] = vPixel + delta * mK[i]; + } + } +} +function splineCurveMonotone(points, indexAxis = 'x') { + const valueAxis = getValueAxis(indexAxis); + const pointsLen = points.length; + const deltaK = Array(pointsLen).fill(0); + const mK = Array(pointsLen); + let i, pointBefore, pointCurrent; + let pointAfter = getPoint(points, 0); + for (i = 0; i < pointsLen; ++i) { + pointBefore = pointCurrent; + pointCurrent = pointAfter; + pointAfter = getPoint(points, i + 1); + if (!pointCurrent) { + continue; + } + if (pointAfter) { + const slopeDelta = pointAfter[indexAxis] - pointCurrent[indexAxis]; + deltaK[i] = slopeDelta !== 0 ? (pointAfter[valueAxis] - pointCurrent[valueAxis]) / slopeDelta : 0; + } + mK[i] = !pointBefore ? deltaK[i] + : !pointAfter ? deltaK[i - 1] + : (sign(deltaK[i - 1]) !== sign(deltaK[i])) ? 0 + : (deltaK[i - 1] + deltaK[i]) / 2; + } + monotoneAdjust(points, deltaK, mK); + monotoneCompute(points, mK, indexAxis); +} +function capControlPoint(pt, min, max) { + return Math.max(Math.min(pt, max), min); +} +function capBezierPoints(points, area) { + let i, ilen, point, inArea, inAreaPrev; + let inAreaNext = _isPointInArea(points[0], area); + for (i = 0, ilen = points.length; i < ilen; ++i) { + inAreaPrev = inArea; + inArea = inAreaNext; + inAreaNext = i < ilen - 1 && _isPointInArea(points[i + 1], area); + if (!inArea) { + continue; + } + point = points[i]; + if (inAreaPrev) { + point.cp1x = capControlPoint(point.cp1x, area.left, area.right); + point.cp1y = capControlPoint(point.cp1y, area.top, area.bottom); + } + if (inAreaNext) { + point.cp2x = capControlPoint(point.cp2x, area.left, area.right); + point.cp2y = capControlPoint(point.cp2y, area.top, area.bottom); + } + } +} +function _updateBezierControlPoints(points, options, area, loop, indexAxis) { + let i, ilen, point, controlPoints; + if (options.spanGaps) { + points = points.filter((pt) => !pt.skip); + } + if (options.cubicInterpolationMode === 'monotone') { + splineCurveMonotone(points, indexAxis); + } else { + let prev = loop ? points[points.length - 1] : points[0]; + for (i = 0, ilen = points.length; i < ilen; ++i) { + point = points[i]; + controlPoints = splineCurve( + prev, + point, + points[Math.min(i + 1, ilen - (loop ? 0 : 1)) % ilen], + options.tension + ); + point.cp1x = controlPoints.previous.x; + point.cp1y = controlPoints.previous.y; + point.cp2x = controlPoints.next.x; + point.cp2y = controlPoints.next.y; + prev = point; + } + } + if (options.capBezierPoints) { + capBezierPoints(points, area); + } +} + +const atEdge = (t) => t === 0 || t === 1; +const elasticIn = (t, s, p) => -(Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * TAU / p)); +const elasticOut = (t, s, p) => Math.pow(2, -10 * t) * Math.sin((t - s) * TAU / p) + 1; +const effects = { + linear: t => t, + easeInQuad: t => t * t, + easeOutQuad: t => -t * (t - 2), + easeInOutQuad: t => ((t /= 0.5) < 1) + ? 0.5 * t * t + : -0.5 * ((--t) * (t - 2) - 1), + easeInCubic: t => t * t * t, + easeOutCubic: t => (t -= 1) * t * t + 1, + easeInOutCubic: t => ((t /= 0.5) < 1) + ? 0.5 * t * t * t + : 0.5 * ((t -= 2) * t * t + 2), + easeInQuart: t => t * t * t * t, + easeOutQuart: t => -((t -= 1) * t * t * t - 1), + easeInOutQuart: t => ((t /= 0.5) < 1) + ? 0.5 * t * t * t * t + : -0.5 * ((t -= 2) * t * t * t - 2), + easeInQuint: t => t * t * t * t * t, + easeOutQuint: t => (t -= 1) * t * t * t * t + 1, + easeInOutQuint: t => ((t /= 0.5) < 1) + ? 0.5 * t * t * t * t * t + : 0.5 * ((t -= 2) * t * t * t * t + 2), + easeInSine: t => -Math.cos(t * HALF_PI) + 1, + easeOutSine: t => Math.sin(t * HALF_PI), + easeInOutSine: t => -0.5 * (Math.cos(PI * t) - 1), + easeInExpo: t => (t === 0) ? 0 : Math.pow(2, 10 * (t - 1)), + easeOutExpo: t => (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1, + easeInOutExpo: t => atEdge(t) ? t : t < 0.5 + ? 0.5 * Math.pow(2, 10 * (t * 2 - 1)) + : 0.5 * (-Math.pow(2, -10 * (t * 2 - 1)) + 2), + easeInCirc: t => (t >= 1) ? t : -(Math.sqrt(1 - t * t) - 1), + easeOutCirc: t => Math.sqrt(1 - (t -= 1) * t), + easeInOutCirc: t => ((t /= 0.5) < 1) + ? -0.5 * (Math.sqrt(1 - t * t) - 1) + : 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1), + easeInElastic: t => atEdge(t) ? t : elasticIn(t, 0.075, 0.3), + easeOutElastic: t => atEdge(t) ? t : elasticOut(t, 0.075, 0.3), + easeInOutElastic(t) { + const s = 0.1125; + const p = 0.45; + return atEdge(t) ? t : + t < 0.5 + ? 0.5 * elasticIn(t * 2, s, p) + : 0.5 + 0.5 * elasticOut(t * 2 - 1, s, p); + }, + easeInBack(t) { + const s = 1.70158; + return t * t * ((s + 1) * t - s); + }, + easeOutBack(t) { + const s = 1.70158; + return (t -= 1) * t * ((s + 1) * t + s) + 1; + }, + easeInOutBack(t) { + let s = 1.70158; + if ((t /= 0.5) < 1) { + return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s)); + } + return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2); + }, + easeInBounce: t => 1 - effects.easeOutBounce(1 - t), + easeOutBounce(t) { + const m = 7.5625; + const d = 2.75; + if (t < (1 / d)) { + return m * t * t; + } + if (t < (2 / d)) { + return m * (t -= (1.5 / d)) * t + 0.75; + } + if (t < (2.5 / d)) { + return m * (t -= (2.25 / d)) * t + 0.9375; + } + return m * (t -= (2.625 / d)) * t + 0.984375; + }, + easeInOutBounce: t => (t < 0.5) + ? effects.easeInBounce(t * 2) * 0.5 + : effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5, +}; + +function _pointInLine(p1, p2, t, mode) { + return { + x: p1.x + t * (p2.x - p1.x), + y: p1.y + t * (p2.y - p1.y) + }; +} +function _steppedInterpolation(p1, p2, t, mode) { + return { + x: p1.x + t * (p2.x - p1.x), + y: mode === 'middle' ? t < 0.5 ? p1.y : p2.y + : mode === 'after' ? t < 1 ? p1.y : p2.y + : t > 0 ? p2.y : p1.y + }; +} +function _bezierInterpolation(p1, p2, t, mode) { + const cp1 = {x: p1.cp2x, y: p1.cp2y}; + const cp2 = {x: p2.cp1x, y: p2.cp1y}; + const a = _pointInLine(p1, cp1, t); + const b = _pointInLine(cp1, cp2, t); + const c = _pointInLine(cp2, p2, t); + const d = _pointInLine(a, b, t); + const e = _pointInLine(b, c, t); + return _pointInLine(d, e, t); +} + +const intlCache = new Map(); +function getNumberFormat(locale, options) { + options = options || {}; + const cacheKey = locale + JSON.stringify(options); + let formatter = intlCache.get(cacheKey); + if (!formatter) { + formatter = new Intl.NumberFormat(locale, options); + intlCache.set(cacheKey, formatter); + } + return formatter; +} +function formatNumber(num, locale, options) { + return getNumberFormat(locale, options).format(num); +} + +const getRightToLeftAdapter = function(rectX, width) { + return { + x(x) { + return rectX + rectX + width - x; + }, + setWidth(w) { + width = w; + }, + textAlign(align) { + if (align === 'center') { + return align; + } + return align === 'right' ? 'left' : 'right'; + }, + xPlus(x, value) { + return x - value; + }, + leftForLtr(x, itemWidth) { + return x - itemWidth; + }, + }; +}; +const getLeftToRightAdapter = function() { + return { + x(x) { + return x; + }, + setWidth(w) { + }, + textAlign(align) { + return align; + }, + xPlus(x, value) { + return x + value; + }, + leftForLtr(x, _itemWidth) { + return x; + }, + }; +}; +function getRtlAdapter(rtl, rectX, width) { + return rtl ? getRightToLeftAdapter(rectX, width) : getLeftToRightAdapter(); +} +function overrideTextDirection(ctx, direction) { + let style, original; + if (direction === 'ltr' || direction === 'rtl') { + style = ctx.canvas.style; + original = [ + style.getPropertyValue('direction'), + style.getPropertyPriority('direction'), + ]; + style.setProperty('direction', direction, 'important'); + ctx.prevTextDirection = original; + } +} +function restoreTextDirection(ctx, original) { + if (original !== undefined) { + delete ctx.prevTextDirection; + ctx.canvas.style.setProperty('direction', original[0], original[1]); + } +} + +function propertyFn(property) { + if (property === 'angle') { + return { + between: _angleBetween, + compare: _angleDiff, + normalize: _normalizeAngle, + }; + } + return { + between: _isBetween, + compare: (a, b) => a - b, + normalize: x => x + }; +} +function normalizeSegment({start, end, count, loop, style}) { + return { + start: start % count, + end: end % count, + loop: loop && (end - start + 1) % count === 0, + style + }; +} +function getSegment(segment, points, bounds) { + const {property, start: startBound, end: endBound} = bounds; + const {between, normalize} = propertyFn(property); + const count = points.length; + let {start, end, loop} = segment; + let i, ilen; + if (loop) { + start += count; + end += count; + for (i = 0, ilen = count; i < ilen; ++i) { + if (!between(normalize(points[start % count][property]), startBound, endBound)) { + break; + } + start--; + end--; + } + start %= count; + end %= count; + } + if (end < start) { + end += count; + } + return {start, end, loop, style: segment.style}; +} +function _boundSegment(segment, points, bounds) { + if (!bounds) { + return [segment]; + } + const {property, start: startBound, end: endBound} = bounds; + const count = points.length; + const {compare, between, normalize} = propertyFn(property); + const {start, end, loop, style} = getSegment(segment, points, bounds); + const result = []; + let inside = false; + let subStart = null; + let value, point, prevValue; + const startIsBefore = () => between(startBound, prevValue, value) && compare(startBound, prevValue) !== 0; + const endIsBefore = () => compare(endBound, value) === 0 || between(endBound, prevValue, value); + const shouldStart = () => inside || startIsBefore(); + const shouldStop = () => !inside || endIsBefore(); + for (let i = start, prev = start; i <= end; ++i) { + point = points[i % count]; + if (point.skip) { + continue; + } + value = normalize(point[property]); + if (value === prevValue) { + continue; + } + inside = between(value, startBound, endBound); + if (subStart === null && shouldStart()) { + subStart = compare(value, startBound) === 0 ? i : prev; + } + if (subStart !== null && shouldStop()) { + result.push(normalizeSegment({start: subStart, end: i, loop, count, style})); + subStart = null; + } + prev = i; + prevValue = value; + } + if (subStart !== null) { + result.push(normalizeSegment({start: subStart, end, loop, count, style})); + } + return result; +} +function _boundSegments(line, bounds) { + const result = []; + const segments = line.segments; + for (let i = 0; i < segments.length; i++) { + const sub = _boundSegment(segments[i], line.points, bounds); + if (sub.length) { + result.push(...sub); + } + } + return result; +} +function findStartAndEnd(points, count, loop, spanGaps) { + let start = 0; + let end = count - 1; + if (loop && !spanGaps) { + while (start < count && !points[start].skip) { + start++; + } + } + while (start < count && points[start].skip) { + start++; + } + start %= count; + if (loop) { + end += start; + } + while (end > start && points[end % count].skip) { + end--; + } + end %= count; + return {start, end}; +} +function solidSegments(points, start, max, loop) { + const count = points.length; + const result = []; + let last = start; + let prev = points[start]; + let end; + for (end = start + 1; end <= max; ++end) { + const cur = points[end % count]; + if (cur.skip || cur.stop) { + if (!prev.skip) { + loop = false; + result.push({start: start % count, end: (end - 1) % count, loop}); + start = last = cur.stop ? end : null; + } + } else { + last = end; + if (prev.skip) { + start = end; + } + } + prev = cur; + } + if (last !== null) { + result.push({start: start % count, end: last % count, loop}); + } + return result; +} +function _computeSegments(line, segmentOptions) { + const points = line.points; + const spanGaps = line.options.spanGaps; + const count = points.length; + if (!count) { + return []; + } + const loop = !!line._loop; + const {start, end} = findStartAndEnd(points, count, loop, spanGaps); + if (spanGaps === true) { + return splitByStyles(line, [{start, end, loop}], points, segmentOptions); + } + const max = end < start ? end + count : end; + const completeLoop = !!line._fullLoop && start === 0 && end === count - 1; + return splitByStyles(line, solidSegments(points, start, max, completeLoop), points, segmentOptions); +} +function splitByStyles(line, segments, points, segmentOptions) { + if (!segmentOptions || !segmentOptions.setContext || !points) { + return segments; + } + return doSplitByStyles(line, segments, points, segmentOptions); +} +function doSplitByStyles(line, segments, points, segmentOptions) { + const chartContext = line._chart.getContext(); + const baseStyle = readStyle(line.options); + const {_datasetIndex: datasetIndex, options: {spanGaps}} = line; + const count = points.length; + const result = []; + let prevStyle = baseStyle; + let start = segments[0].start; + let i = start; + function addStyle(s, e, l, st) { + const dir = spanGaps ? -1 : 1; + if (s === e) { + return; + } + s += count; + while (points[s % count].skip) { + s -= dir; + } + while (points[e % count].skip) { + e += dir; + } + if (s % count !== e % count) { + result.push({start: s % count, end: e % count, loop: l, style: st}); + prevStyle = st; + start = e % count; + } + } + for (const segment of segments) { + start = spanGaps ? start : segment.start; + let prev = points[start % count]; + let style; + for (i = start + 1; i <= segment.end; i++) { + const pt = points[i % count]; + style = readStyle(segmentOptions.setContext(createContext(chartContext, { + type: 'segment', + p0: prev, + p1: pt, + p0DataIndex: (i - 1) % count, + p1DataIndex: i % count, + datasetIndex + }))); + if (styleChanged(style, prevStyle)) { + addStyle(start, i - 1, segment.loop, prevStyle); + } + prev = pt; + prevStyle = style; + } + if (start < i - 1) { + addStyle(start, i - 1, segment.loop, prevStyle); + } + } + return result; +} +function readStyle(options) { + return { + backgroundColor: options.backgroundColor, + borderCapStyle: options.borderCapStyle, + borderDash: options.borderDash, + borderDashOffset: options.borderDashOffset, + borderJoinStyle: options.borderJoinStyle, + borderWidth: options.borderWidth, + borderColor: options.borderColor + }; +} +function styleChanged(style, prevStyle) { + return prevStyle && JSON.stringify(style) !== JSON.stringify(prevStyle); +} + +var helpers = /*#__PURE__*/Object.freeze({ +__proto__: null, +easingEffects: effects, +color: color, +getHoverColor: getHoverColor, +noop: noop, +uid: uid, +isNullOrUndef: isNullOrUndef, +isArray: isArray, +isObject: isObject, +isFinite: isNumberFinite, +finiteOrDefault: finiteOrDefault, +valueOrDefault: valueOrDefault, +toPercentage: toPercentage, +toDimension: toDimension, +callback: callback, +each: each, +_elementsEqual: _elementsEqual, +clone: clone, +_merger: _merger, +merge: merge, +mergeIf: mergeIf, +_mergerIf: _mergerIf, +_deprecated: _deprecated, +resolveObjectKey: resolveObjectKey, +_capitalize: _capitalize, +defined: defined, +isFunction: isFunction, +setsEqual: setsEqual, +_isClickEvent: _isClickEvent, +toFontString: toFontString, +_measureText: _measureText, +_longestText: _longestText, +_alignPixel: _alignPixel, +clearCanvas: clearCanvas, +drawPoint: drawPoint, +_isPointInArea: _isPointInArea, +clipArea: clipArea, +unclipArea: unclipArea, +_steppedLineTo: _steppedLineTo, +_bezierCurveTo: _bezierCurveTo, +renderText: renderText, +addRoundedRectPath: addRoundedRectPath, +_lookup: _lookup, +_lookupByKey: _lookupByKey, +_rlookupByKey: _rlookupByKey, +_filterBetween: _filterBetween, +listenArrayEvents: listenArrayEvents, +unlistenArrayEvents: unlistenArrayEvents, +_arrayUnique: _arrayUnique, +_createResolver: _createResolver, +_attachContext: _attachContext, +_descriptors: _descriptors, +splineCurve: splineCurve, +splineCurveMonotone: splineCurveMonotone, +_updateBezierControlPoints: _updateBezierControlPoints, +_isDomSupported: _isDomSupported, +_getParentNode: _getParentNode, +getStyle: getStyle, +getRelativePosition: getRelativePosition$1, +getMaximumSize: getMaximumSize, +retinaScale: retinaScale, +supportsEventListenerOptions: supportsEventListenerOptions, +readUsedSize: readUsedSize, +fontString: fontString, +requestAnimFrame: requestAnimFrame, +throttled: throttled, +debounce: debounce, +_toLeftRightCenter: _toLeftRightCenter, +_alignStartEnd: _alignStartEnd, +_textX: _textX, +_pointInLine: _pointInLine, +_steppedInterpolation: _steppedInterpolation, +_bezierInterpolation: _bezierInterpolation, +formatNumber: formatNumber, +toLineHeight: toLineHeight, +_readValueToProps: _readValueToProps, +toTRBL: toTRBL, +toTRBLCorners: toTRBLCorners, +toPadding: toPadding, +toFont: toFont, +resolve: resolve, +_addGrace: _addGrace, +createContext: createContext, +PI: PI, +TAU: TAU, +PITAU: PITAU, +INFINITY: INFINITY, +RAD_PER_DEG: RAD_PER_DEG, +HALF_PI: HALF_PI, +QUARTER_PI: QUARTER_PI, +TWO_THIRDS_PI: TWO_THIRDS_PI, +log10: log10, +sign: sign, +niceNum: niceNum, +_factorize: _factorize, +isNumber: isNumber, +almostEquals: almostEquals, +almostWhole: almostWhole, +_setMinAndMaxByKey: _setMinAndMaxByKey, +toRadians: toRadians, +toDegrees: toDegrees, +_decimalPlaces: _decimalPlaces, +getAngleFromPoint: getAngleFromPoint, +distanceBetweenPoints: distanceBetweenPoints, +_angleDiff: _angleDiff, +_normalizeAngle: _normalizeAngle, +_angleBetween: _angleBetween, +_limitValue: _limitValue, +_int16Range: _int16Range, +_isBetween: _isBetween, +getRtlAdapter: getRtlAdapter, +overrideTextDirection: overrideTextDirection, +restoreTextDirection: restoreTextDirection, +_boundSegment: _boundSegment, +_boundSegments: _boundSegments, +_computeSegments: _computeSegments +}); + +class BasePlatform { + acquireContext(canvas, aspectRatio) {} + releaseContext(context) { + return false; + } + addEventListener(chart, type, listener) {} + removeEventListener(chart, type, listener) {} + getDevicePixelRatio() { + return 1; + } + getMaximumSize(element, width, height, aspectRatio) { + width = Math.max(0, width || element.width); + height = height || element.height; + return { + width, + height: Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height) + }; + } + isAttached(canvas) { + return true; + } + updateConfig(config) { + } +} + +class BasicPlatform extends BasePlatform { + acquireContext(item) { + return item && item.getContext && item.getContext('2d') || null; + } + updateConfig(config) { + config.options.animation = false; + } +} + +const EXPANDO_KEY = '$chartjs'; +const EVENT_TYPES = { + touchstart: 'mousedown', + touchmove: 'mousemove', + touchend: 'mouseup', + pointerenter: 'mouseenter', + pointerdown: 'mousedown', + pointermove: 'mousemove', + pointerup: 'mouseup', + pointerleave: 'mouseout', + pointerout: 'mouseout' +}; +const isNullOrEmpty = value => value === null || value === ''; +function initCanvas(canvas, aspectRatio) { + const style = canvas.style; + const renderHeight = canvas.getAttribute('height'); + const renderWidth = canvas.getAttribute('width'); + canvas[EXPANDO_KEY] = { + initial: { + height: renderHeight, + width: renderWidth, + style: { + display: style.display, + height: style.height, + width: style.width + } + } + }; + style.display = style.display || 'block'; + style.boxSizing = style.boxSizing || 'border-box'; + if (isNullOrEmpty(renderWidth)) { + const displayWidth = readUsedSize(canvas, 'width'); + if (displayWidth !== undefined) { + canvas.width = displayWidth; + } + } + if (isNullOrEmpty(renderHeight)) { + if (canvas.style.height === '') { + canvas.height = canvas.width / (aspectRatio || 2); + } else { + const displayHeight = readUsedSize(canvas, 'height'); + if (displayHeight !== undefined) { + canvas.height = displayHeight; + } + } + } + return canvas; +} +const eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false; +function addListener(node, type, listener) { + node.addEventListener(type, listener, eventListenerOptions); +} +function removeListener(chart, type, listener) { + chart.canvas.removeEventListener(type, listener, eventListenerOptions); +} +function fromNativeEvent(event, chart) { + const type = EVENT_TYPES[event.type] || event.type; + const {x, y} = getRelativePosition$1(event, chart); + return { + type, + chart, + native: event, + x: x !== undefined ? x : null, + y: y !== undefined ? y : null, + }; +} +function nodeListContains(nodeList, canvas) { + for (const node of nodeList) { + if (node === canvas || node.contains(canvas)) { + return true; + } + } +} +function createAttachObserver(chart, type, listener) { + const canvas = chart.canvas; + const observer = new MutationObserver(entries => { + let trigger = false; + for (const entry of entries) { + trigger = trigger || nodeListContains(entry.addedNodes, canvas); + trigger = trigger && !nodeListContains(entry.removedNodes, canvas); + } + if (trigger) { + listener(); + } + }); + observer.observe(document, {childList: true, subtree: true}); + return observer; +} +function createDetachObserver(chart, type, listener) { + const canvas = chart.canvas; + const observer = new MutationObserver(entries => { + let trigger = false; + for (const entry of entries) { + trigger = trigger || nodeListContains(entry.removedNodes, canvas); + trigger = trigger && !nodeListContains(entry.addedNodes, canvas); + } + if (trigger) { + listener(); + } + }); + observer.observe(document, {childList: true, subtree: true}); + return observer; +} +const drpListeningCharts = new Map(); +let oldDevicePixelRatio = 0; +function onWindowResize() { + const dpr = window.devicePixelRatio; + if (dpr === oldDevicePixelRatio) { + return; + } + oldDevicePixelRatio = dpr; + drpListeningCharts.forEach((resize, chart) => { + if (chart.currentDevicePixelRatio !== dpr) { + resize(); + } + }); +} +function listenDevicePixelRatioChanges(chart, resize) { + if (!drpListeningCharts.size) { + window.addEventListener('resize', onWindowResize); + } + drpListeningCharts.set(chart, resize); +} +function unlistenDevicePixelRatioChanges(chart) { + drpListeningCharts.delete(chart); + if (!drpListeningCharts.size) { + window.removeEventListener('resize', onWindowResize); + } +} +function createResizeObserver(chart, type, listener) { + const canvas = chart.canvas; + const container = canvas && _getParentNode(canvas); + if (!container) { + return; + } + const resize = throttled((width, height) => { + const w = container.clientWidth; + listener(width, height); + if (w < container.clientWidth) { + listener(); + } + }, window); + const observer = new ResizeObserver(entries => { + const entry = entries[0]; + const width = entry.contentRect.width; + const height = entry.contentRect.height; + if (width === 0 && height === 0) { + return; + } + resize(width, height); + }); + observer.observe(container); + listenDevicePixelRatioChanges(chart, resize); + return observer; +} +function releaseObserver(chart, type, observer) { + if (observer) { + observer.disconnect(); + } + if (type === 'resize') { + unlistenDevicePixelRatioChanges(chart); + } +} +function createProxyAndListen(chart, type, listener) { + const canvas = chart.canvas; + const proxy = throttled((event) => { + if (chart.ctx !== null) { + listener(fromNativeEvent(event, chart)); + } + }, chart, (args) => { + const event = args[0]; + return [event, event.offsetX, event.offsetY]; + }); + addListener(canvas, type, proxy); + return proxy; +} +class DomPlatform extends BasePlatform { + acquireContext(canvas, aspectRatio) { + const context = canvas && canvas.getContext && canvas.getContext('2d'); + if (context && context.canvas === canvas) { + initCanvas(canvas, aspectRatio); + return context; + } + return null; + } + releaseContext(context) { + const canvas = context.canvas; + if (!canvas[EXPANDO_KEY]) { + return false; + } + const initial = canvas[EXPANDO_KEY].initial; + ['height', 'width'].forEach((prop) => { + const value = initial[prop]; + if (isNullOrUndef(value)) { + canvas.removeAttribute(prop); + } else { + canvas.setAttribute(prop, value); + } + }); + const style = initial.style || {}; + Object.keys(style).forEach((key) => { + canvas.style[key] = style[key]; + }); + canvas.width = canvas.width; + delete canvas[EXPANDO_KEY]; + return true; + } + addEventListener(chart, type, listener) { + this.removeEventListener(chart, type); + const proxies = chart.$proxies || (chart.$proxies = {}); + const handlers = { + attach: createAttachObserver, + detach: createDetachObserver, + resize: createResizeObserver + }; + const handler = handlers[type] || createProxyAndListen; + proxies[type] = handler(chart, type, listener); + } + removeEventListener(chart, type) { + const proxies = chart.$proxies || (chart.$proxies = {}); + const proxy = proxies[type]; + if (!proxy) { + return; + } + const handlers = { + attach: releaseObserver, + detach: releaseObserver, + resize: releaseObserver + }; + const handler = handlers[type] || removeListener; + handler(chart, type, proxy); + proxies[type] = undefined; + } + getDevicePixelRatio() { + return window.devicePixelRatio; + } + getMaximumSize(canvas, width, height, aspectRatio) { + return getMaximumSize(canvas, width, height, aspectRatio); + } + isAttached(canvas) { + const container = _getParentNode(canvas); + return !!(container && container.isConnected); + } +} + +function _detectPlatform(canvas) { + if (!_isDomSupported() || (typeof OffscreenCanvas !== 'undefined' && canvas instanceof OffscreenCanvas)) { + return BasicPlatform; + } + return DomPlatform; +} + +var platforms = /*#__PURE__*/Object.freeze({ +__proto__: null, +_detectPlatform: _detectPlatform, +BasePlatform: BasePlatform, +BasicPlatform: BasicPlatform, +DomPlatform: DomPlatform +}); + +const transparent = 'transparent'; +const interpolators = { + boolean(from, to, factor) { + return factor > 0.5 ? to : from; + }, + color(from, to, factor) { + const c0 = color(from || transparent); + const c1 = c0.valid && color(to || transparent); + return c1 && c1.valid + ? c1.mix(c0, factor).hexString() + : to; + }, + number(from, to, factor) { + return from + (to - from) * factor; + } +}; +class Animation { + constructor(cfg, target, prop, to) { + const currentValue = target[prop]; + to = resolve([cfg.to, to, currentValue, cfg.from]); + const from = resolve([cfg.from, currentValue, to]); + this._active = true; + this._fn = cfg.fn || interpolators[cfg.type || typeof from]; + this._easing = effects[cfg.easing] || effects.linear; + this._start = Math.floor(Date.now() + (cfg.delay || 0)); + this._duration = this._total = Math.floor(cfg.duration); + this._loop = !!cfg.loop; + this._target = target; + this._prop = prop; + this._from = from; + this._to = to; + this._promises = undefined; + } + active() { + return this._active; + } + update(cfg, to, date) { + if (this._active) { + this._notify(false); + const currentValue = this._target[this._prop]; + const elapsed = date - this._start; + const remain = this._duration - elapsed; + this._start = date; + this._duration = Math.floor(Math.max(remain, cfg.duration)); + this._total += elapsed; + this._loop = !!cfg.loop; + this._to = resolve([cfg.to, to, currentValue, cfg.from]); + this._from = resolve([cfg.from, currentValue, to]); + } + } + cancel() { + if (this._active) { + this.tick(Date.now()); + this._active = false; + this._notify(false); + } + } + tick(date) { + const elapsed = date - this._start; + const duration = this._duration; + const prop = this._prop; + const from = this._from; + const loop = this._loop; + const to = this._to; + let factor; + this._active = from !== to && (loop || (elapsed < duration)); + if (!this._active) { + this._target[prop] = to; + this._notify(true); + return; + } + if (elapsed < 0) { + this._target[prop] = from; + return; + } + factor = (elapsed / duration) % 2; + factor = loop && factor > 1 ? 2 - factor : factor; + factor = this._easing(Math.min(1, Math.max(0, factor))); + this._target[prop] = this._fn(from, to, factor); + } + wait() { + const promises = this._promises || (this._promises = []); + return new Promise((res, rej) => { + promises.push({res, rej}); + }); + } + _notify(resolved) { + const method = resolved ? 'res' : 'rej'; + const promises = this._promises || []; + for (let i = 0; i < promises.length; i++) { + promises[i][method](); + } + } +} + +const numbers = ['x', 'y', 'borderWidth', 'radius', 'tension']; +const colors = ['color', 'borderColor', 'backgroundColor']; +defaults.set('animation', { + delay: undefined, + duration: 1000, + easing: 'easeOutQuart', + fn: undefined, + from: undefined, + loop: undefined, + to: undefined, + type: undefined, +}); +const animationOptions = Object.keys(defaults.animation); +defaults.describe('animation', { + _fallback: false, + _indexable: false, + _scriptable: (name) => name !== 'onProgress' && name !== 'onComplete' && name !== 'fn', +}); +defaults.set('animations', { + colors: { + type: 'color', + properties: colors + }, + numbers: { + type: 'number', + properties: numbers + }, +}); +defaults.describe('animations', { + _fallback: 'animation', +}); +defaults.set('transitions', { + active: { + animation: { + duration: 400 + } + }, + resize: { + animation: { + duration: 0 + } + }, + show: { + animations: { + colors: { + from: 'transparent' + }, + visible: { + type: 'boolean', + duration: 0 + }, + } + }, + hide: { + animations: { + colors: { + to: 'transparent' + }, + visible: { + type: 'boolean', + easing: 'linear', + fn: v => v | 0 + }, + } + } +}); +class Animations { + constructor(chart, config) { + this._chart = chart; + this._properties = new Map(); + this.configure(config); + } + configure(config) { + if (!isObject(config)) { + return; + } + const animatedProps = this._properties; + Object.getOwnPropertyNames(config).forEach(key => { + const cfg = config[key]; + if (!isObject(cfg)) { + return; + } + const resolved = {}; + for (const option of animationOptions) { + resolved[option] = cfg[option]; + } + (isArray(cfg.properties) && cfg.properties || [key]).forEach((prop) => { + if (prop === key || !animatedProps.has(prop)) { + animatedProps.set(prop, resolved); + } + }); + }); + } + _animateOptions(target, values) { + const newOptions = values.options; + const options = resolveTargetOptions(target, newOptions); + if (!options) { + return []; + } + const animations = this._createAnimations(options, newOptions); + if (newOptions.$shared) { + awaitAll(target.options.$animations, newOptions).then(() => { + target.options = newOptions; + }, () => { + }); + } + return animations; + } + _createAnimations(target, values) { + const animatedProps = this._properties; + const animations = []; + const running = target.$animations || (target.$animations = {}); + const props = Object.keys(values); + const date = Date.now(); + let i; + for (i = props.length - 1; i >= 0; --i) { + const prop = props[i]; + if (prop.charAt(0) === '$') { + continue; + } + if (prop === 'options') { + animations.push(...this._animateOptions(target, values)); + continue; + } + const value = values[prop]; + let animation = running[prop]; + const cfg = animatedProps.get(prop); + if (animation) { + if (cfg && animation.active()) { + animation.update(cfg, value, date); + continue; + } else { + animation.cancel(); + } + } + if (!cfg || !cfg.duration) { + target[prop] = value; + continue; + } + running[prop] = animation = new Animation(cfg, target, prop, value); + animations.push(animation); + } + return animations; + } + update(target, values) { + if (this._properties.size === 0) { + Object.assign(target, values); + return; + } + const animations = this._createAnimations(target, values); + if (animations.length) { + animator.add(this._chart, animations); + return true; + } + } +} +function awaitAll(animations, properties) { + const running = []; + const keys = Object.keys(properties); + for (let i = 0; i < keys.length; i++) { + const anim = animations[keys[i]]; + if (anim && anim.active()) { + running.push(anim.wait()); + } + } + return Promise.all(running); +} +function resolveTargetOptions(target, newOptions) { + if (!newOptions) { + return; + } + let options = target.options; + if (!options) { + target.options = newOptions; + return; + } + if (options.$shared) { + target.options = options = Object.assign({}, options, {$shared: false, $animations: {}}); + } + return options; +} + +function scaleClip(scale, allowedOverflow) { + const opts = scale && scale.options || {}; + const reverse = opts.reverse; + const min = opts.min === undefined ? allowedOverflow : 0; + const max = opts.max === undefined ? allowedOverflow : 0; + return { + start: reverse ? max : min, + end: reverse ? min : max + }; +} +function defaultClip(xScale, yScale, allowedOverflow) { + if (allowedOverflow === false) { + return false; + } + const x = scaleClip(xScale, allowedOverflow); + const y = scaleClip(yScale, allowedOverflow); + return { + top: y.end, + right: x.end, + bottom: y.start, + left: x.start + }; +} +function toClip(value) { + let t, r, b, l; + if (isObject(value)) { + t = value.top; + r = value.right; + b = value.bottom; + l = value.left; + } else { + t = r = b = l = value; + } + return { + top: t, + right: r, + bottom: b, + left: l, + disabled: value === false + }; +} +function getSortedDatasetIndices(chart, filterVisible) { + const keys = []; + const metasets = chart._getSortedDatasetMetas(filterVisible); + let i, ilen; + for (i = 0, ilen = metasets.length; i < ilen; ++i) { + keys.push(metasets[i].index); + } + return keys; +} +function applyStack(stack, value, dsIndex, options = {}) { + const keys = stack.keys; + const singleMode = options.mode === 'single'; + let i, ilen, datasetIndex, otherValue; + if (value === null) { + return; + } + for (i = 0, ilen = keys.length; i < ilen; ++i) { + datasetIndex = +keys[i]; + if (datasetIndex === dsIndex) { + if (options.all) { + continue; + } + break; + } + otherValue = stack.values[datasetIndex]; + if (isNumberFinite(otherValue) && (singleMode || (value === 0 || sign(value) === sign(otherValue)))) { + value += otherValue; + } + } + return value; +} +function convertObjectDataToArray(data) { + const keys = Object.keys(data); + const adata = new Array(keys.length); + let i, ilen, key; + for (i = 0, ilen = keys.length; i < ilen; ++i) { + key = keys[i]; + adata[i] = { + x: key, + y: data[key] + }; + } + return adata; +} +function isStacked(scale, meta) { + const stacked = scale && scale.options.stacked; + return stacked || (stacked === undefined && meta.stack !== undefined); +} +function getStackKey(indexScale, valueScale, meta) { + return `${indexScale.id}.${valueScale.id}.${meta.stack || meta.type}`; +} +function getUserBounds(scale) { + const {min, max, minDefined, maxDefined} = scale.getUserBounds(); + return { + min: minDefined ? min : Number.NEGATIVE_INFINITY, + max: maxDefined ? max : Number.POSITIVE_INFINITY + }; +} +function getOrCreateStack(stacks, stackKey, indexValue) { + const subStack = stacks[stackKey] || (stacks[stackKey] = {}); + return subStack[indexValue] || (subStack[indexValue] = {}); +} +function getLastIndexInStack(stack, vScale, positive, type) { + for (const meta of vScale.getMatchingVisibleMetas(type).reverse()) { + const value = stack[meta.index]; + if ((positive && value > 0) || (!positive && value < 0)) { + return meta.index; + } + } + return null; +} +function updateStacks(controller, parsed) { + const {chart, _cachedMeta: meta} = controller; + const stacks = chart._stacks || (chart._stacks = {}); + const {iScale, vScale, index: datasetIndex} = meta; + const iAxis = iScale.axis; + const vAxis = vScale.axis; + const key = getStackKey(iScale, vScale, meta); + const ilen = parsed.length; + let stack; + for (let i = 0; i < ilen; ++i) { + const item = parsed[i]; + const {[iAxis]: index, [vAxis]: value} = item; + const itemStacks = item._stacks || (item._stacks = {}); + stack = itemStacks[vAxis] = getOrCreateStack(stacks, key, index); + stack[datasetIndex] = value; + stack._top = getLastIndexInStack(stack, vScale, true, meta.type); + stack._bottom = getLastIndexInStack(stack, vScale, false, meta.type); + } +} +function getFirstScaleId(chart, axis) { + const scales = chart.scales; + return Object.keys(scales).filter(key => scales[key].axis === axis).shift(); +} +function createDatasetContext(parent, index) { + return createContext(parent, + { + active: false, + dataset: undefined, + datasetIndex: index, + index, + mode: 'default', + type: 'dataset' + } + ); +} +function createDataContext(parent, index, element) { + return createContext(parent, { + active: false, + dataIndex: index, + parsed: undefined, + raw: undefined, + element, + index, + mode: 'default', + type: 'data' + }); +} +function clearStacks(meta, items) { + const datasetIndex = meta.controller.index; + const axis = meta.vScale && meta.vScale.axis; + if (!axis) { + return; + } + items = items || meta._parsed; + for (const parsed of items) { + const stacks = parsed._stacks; + if (!stacks || stacks[axis] === undefined || stacks[axis][datasetIndex] === undefined) { + return; + } + delete stacks[axis][datasetIndex]; + } +} +const isDirectUpdateMode = (mode) => mode === 'reset' || mode === 'none'; +const cloneIfNotShared = (cached, shared) => shared ? cached : Object.assign({}, cached); +const createStack = (canStack, meta, chart) => canStack && !meta.hidden && meta._stacked + && {keys: getSortedDatasetIndices(chart, true), values: null}; +class DatasetController { + constructor(chart, datasetIndex) { + this.chart = chart; + this._ctx = chart.ctx; + this.index = datasetIndex; + this._cachedDataOpts = {}; + this._cachedMeta = this.getMeta(); + this._type = this._cachedMeta.type; + this.options = undefined; + this._parsing = false; + this._data = undefined; + this._objectData = undefined; + this._sharedOptions = undefined; + this._drawStart = undefined; + this._drawCount = undefined; + this.enableOptionSharing = false; + this.$context = undefined; + this._syncList = []; + this.initialize(); + } + initialize() { + const meta = this._cachedMeta; + this.configure(); + this.linkScales(); + meta._stacked = isStacked(meta.vScale, meta); + this.addElements(); + } + updateIndex(datasetIndex) { + if (this.index !== datasetIndex) { + clearStacks(this._cachedMeta); + } + this.index = datasetIndex; + } + linkScales() { + const chart = this.chart; + const meta = this._cachedMeta; + const dataset = this.getDataset(); + const chooseId = (axis, x, y, r) => axis === 'x' ? x : axis === 'r' ? r : y; + const xid = meta.xAxisID = valueOrDefault(dataset.xAxisID, getFirstScaleId(chart, 'x')); + const yid = meta.yAxisID = valueOrDefault(dataset.yAxisID, getFirstScaleId(chart, 'y')); + const rid = meta.rAxisID = valueOrDefault(dataset.rAxisID, getFirstScaleId(chart, 'r')); + const indexAxis = meta.indexAxis; + const iid = meta.iAxisID = chooseId(indexAxis, xid, yid, rid); + const vid = meta.vAxisID = chooseId(indexAxis, yid, xid, rid); + meta.xScale = this.getScaleForId(xid); + meta.yScale = this.getScaleForId(yid); + meta.rScale = this.getScaleForId(rid); + meta.iScale = this.getScaleForId(iid); + meta.vScale = this.getScaleForId(vid); + } + getDataset() { + return this.chart.data.datasets[this.index]; + } + getMeta() { + return this.chart.getDatasetMeta(this.index); + } + getScaleForId(scaleID) { + return this.chart.scales[scaleID]; + } + _getOtherScale(scale) { + const meta = this._cachedMeta; + return scale === meta.iScale + ? meta.vScale + : meta.iScale; + } + reset() { + this._update('reset'); + } + _destroy() { + const meta = this._cachedMeta; + if (this._data) { + unlistenArrayEvents(this._data, this); + } + if (meta._stacked) { + clearStacks(meta); + } + } + _dataCheck() { + const dataset = this.getDataset(); + const data = dataset.data || (dataset.data = []); + const _data = this._data; + if (isObject(data)) { + this._data = convertObjectDataToArray(data); + } else if (_data !== data) { + if (_data) { + unlistenArrayEvents(_data, this); + const meta = this._cachedMeta; + clearStacks(meta); + meta._parsed = []; + } + if (data && Object.isExtensible(data)) { + listenArrayEvents(data, this); + } + this._syncList = []; + this._data = data; + } + } + addElements() { + const meta = this._cachedMeta; + this._dataCheck(); + if (this.datasetElementType) { + meta.dataset = new this.datasetElementType(); + } + } + buildOrUpdateElements(resetNewElements) { + const meta = this._cachedMeta; + const dataset = this.getDataset(); + let stackChanged = false; + this._dataCheck(); + const oldStacked = meta._stacked; + meta._stacked = isStacked(meta.vScale, meta); + if (meta.stack !== dataset.stack) { + stackChanged = true; + clearStacks(meta); + meta.stack = dataset.stack; + } + this._resyncElements(resetNewElements); + if (stackChanged || oldStacked !== meta._stacked) { + updateStacks(this, meta._parsed); + } + } + configure() { + const config = this.chart.config; + const scopeKeys = config.datasetScopeKeys(this._type); + const scopes = config.getOptionScopes(this.getDataset(), scopeKeys, true); + this.options = config.createResolver(scopes, this.getContext()); + this._parsing = this.options.parsing; + this._cachedDataOpts = {}; + } + parse(start, count) { + const {_cachedMeta: meta, _data: data} = this; + const {iScale, _stacked} = meta; + const iAxis = iScale.axis; + let sorted = start === 0 && count === data.length ? true : meta._sorted; + let prev = start > 0 && meta._parsed[start - 1]; + let i, cur, parsed; + if (this._parsing === false) { + meta._parsed = data; + meta._sorted = true; + parsed = data; + } else { + if (isArray(data[start])) { + parsed = this.parseArrayData(meta, data, start, count); + } else if (isObject(data[start])) { + parsed = this.parseObjectData(meta, data, start, count); + } else { + parsed = this.parsePrimitiveData(meta, data, start, count); + } + const isNotInOrderComparedToPrev = () => cur[iAxis] === null || (prev && cur[iAxis] < prev[iAxis]); + for (i = 0; i < count; ++i) { + meta._parsed[i + start] = cur = parsed[i]; + if (sorted) { + if (isNotInOrderComparedToPrev()) { + sorted = false; + } + prev = cur; + } + } + meta._sorted = sorted; + } + if (_stacked) { + updateStacks(this, parsed); + } + } + parsePrimitiveData(meta, data, start, count) { + const {iScale, vScale} = meta; + const iAxis = iScale.axis; + const vAxis = vScale.axis; + const labels = iScale.getLabels(); + const singleScale = iScale === vScale; + const parsed = new Array(count); + let i, ilen, index; + for (i = 0, ilen = count; i < ilen; ++i) { + index = i + start; + parsed[i] = { + [iAxis]: singleScale || iScale.parse(labels[index], index), + [vAxis]: vScale.parse(data[index], index) + }; + } + return parsed; + } + parseArrayData(meta, data, start, count) { + const {xScale, yScale} = meta; + const parsed = new Array(count); + let i, ilen, index, item; + for (i = 0, ilen = count; i < ilen; ++i) { + index = i + start; + item = data[index]; + parsed[i] = { + x: xScale.parse(item[0], index), + y: yScale.parse(item[1], index) + }; + } + return parsed; + } + parseObjectData(meta, data, start, count) { + const {xScale, yScale} = meta; + const {xAxisKey = 'x', yAxisKey = 'y'} = this._parsing; + const parsed = new Array(count); + let i, ilen, index, item; + for (i = 0, ilen = count; i < ilen; ++i) { + index = i + start; + item = data[index]; + parsed[i] = { + x: xScale.parse(resolveObjectKey(item, xAxisKey), index), + y: yScale.parse(resolveObjectKey(item, yAxisKey), index) + }; + } + return parsed; + } + getParsed(index) { + return this._cachedMeta._parsed[index]; + } + getDataElement(index) { + return this._cachedMeta.data[index]; + } + applyStack(scale, parsed, mode) { + const chart = this.chart; + const meta = this._cachedMeta; + const value = parsed[scale.axis]; + const stack = { + keys: getSortedDatasetIndices(chart, true), + values: parsed._stacks[scale.axis] + }; + return applyStack(stack, value, meta.index, {mode}); + } + updateRangeFromParsed(range, scale, parsed, stack) { + const parsedValue = parsed[scale.axis]; + let value = parsedValue === null ? NaN : parsedValue; + const values = stack && parsed._stacks[scale.axis]; + if (stack && values) { + stack.values = values; + value = applyStack(stack, parsedValue, this._cachedMeta.index); + } + range.min = Math.min(range.min, value); + range.max = Math.max(range.max, value); + } + getMinMax(scale, canStack) { + const meta = this._cachedMeta; + const _parsed = meta._parsed; + const sorted = meta._sorted && scale === meta.iScale; + const ilen = _parsed.length; + const otherScale = this._getOtherScale(scale); + const stack = createStack(canStack, meta, this.chart); + const range = {min: Number.POSITIVE_INFINITY, max: Number.NEGATIVE_INFINITY}; + const {min: otherMin, max: otherMax} = getUserBounds(otherScale); + let i, parsed; + function _skip() { + parsed = _parsed[i]; + const otherValue = parsed[otherScale.axis]; + return !isNumberFinite(parsed[scale.axis]) || otherMin > otherValue || otherMax < otherValue; + } + for (i = 0; i < ilen; ++i) { + if (_skip()) { + continue; + } + this.updateRangeFromParsed(range, scale, parsed, stack); + if (sorted) { + break; + } + } + if (sorted) { + for (i = ilen - 1; i >= 0; --i) { + if (_skip()) { + continue; + } + this.updateRangeFromParsed(range, scale, parsed, stack); + break; + } + } + return range; + } + getAllParsedValues(scale) { + const parsed = this._cachedMeta._parsed; + const values = []; + let i, ilen, value; + for (i = 0, ilen = parsed.length; i < ilen; ++i) { + value = parsed[i][scale.axis]; + if (isNumberFinite(value)) { + values.push(value); + } + } + return values; + } + getMaxOverflow() { + return false; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const iScale = meta.iScale; + const vScale = meta.vScale; + const parsed = this.getParsed(index); + return { + label: iScale ? '' + iScale.getLabelForValue(parsed[iScale.axis]) : '', + value: vScale ? '' + vScale.getLabelForValue(parsed[vScale.axis]) : '' + }; + } + _update(mode) { + const meta = this._cachedMeta; + this.update(mode || 'default'); + meta._clip = toClip(valueOrDefault(this.options.clip, defaultClip(meta.xScale, meta.yScale, this.getMaxOverflow()))); + } + update(mode) {} + draw() { + const ctx = this._ctx; + const chart = this.chart; + const meta = this._cachedMeta; + const elements = meta.data || []; + const area = chart.chartArea; + const active = []; + const start = this._drawStart || 0; + const count = this._drawCount || (elements.length - start); + const drawActiveElementsOnTop = this.options.drawActiveElementsOnTop; + let i; + if (meta.dataset) { + meta.dataset.draw(ctx, area, start, count); + } + for (i = start; i < start + count; ++i) { + const element = elements[i]; + if (element.hidden) { + continue; + } + if (element.active && drawActiveElementsOnTop) { + active.push(element); + } else { + element.draw(ctx, area); + } + } + for (i = 0; i < active.length; ++i) { + active[i].draw(ctx, area); + } + } + getStyle(index, active) { + const mode = active ? 'active' : 'default'; + return index === undefined && this._cachedMeta.dataset + ? this.resolveDatasetElementOptions(mode) + : this.resolveDataElementOptions(index || 0, mode); + } + getContext(index, active, mode) { + const dataset = this.getDataset(); + let context; + if (index >= 0 && index < this._cachedMeta.data.length) { + const element = this._cachedMeta.data[index]; + context = element.$context || + (element.$context = createDataContext(this.getContext(), index, element)); + context.parsed = this.getParsed(index); + context.raw = dataset.data[index]; + context.index = context.dataIndex = index; + } else { + context = this.$context || + (this.$context = createDatasetContext(this.chart.getContext(), this.index)); + context.dataset = dataset; + context.index = context.datasetIndex = this.index; + } + context.active = !!active; + context.mode = mode; + return context; + } + resolveDatasetElementOptions(mode) { + return this._resolveElementOptions(this.datasetElementType.id, mode); + } + resolveDataElementOptions(index, mode) { + return this._resolveElementOptions(this.dataElementType.id, mode, index); + } + _resolveElementOptions(elementType, mode = 'default', index) { + const active = mode === 'active'; + const cache = this._cachedDataOpts; + const cacheKey = elementType + '-' + mode; + const cached = cache[cacheKey]; + const sharing = this.enableOptionSharing && defined(index); + if (cached) { + return cloneIfNotShared(cached, sharing); + } + const config = this.chart.config; + const scopeKeys = config.datasetElementScopeKeys(this._type, elementType); + const prefixes = active ? [`${elementType}Hover`, 'hover', elementType, ''] : [elementType, '']; + const scopes = config.getOptionScopes(this.getDataset(), scopeKeys); + const names = Object.keys(defaults.elements[elementType]); + const context = () => this.getContext(index, active); + const values = config.resolveNamedOptions(scopes, names, context, prefixes); + if (values.$shared) { + values.$shared = sharing; + cache[cacheKey] = Object.freeze(cloneIfNotShared(values, sharing)); + } + return values; + } + _resolveAnimations(index, transition, active) { + const chart = this.chart; + const cache = this._cachedDataOpts; + const cacheKey = `animation-${transition}`; + const cached = cache[cacheKey]; + if (cached) { + return cached; + } + let options; + if (chart.options.animation !== false) { + const config = this.chart.config; + const scopeKeys = config.datasetAnimationScopeKeys(this._type, transition); + const scopes = config.getOptionScopes(this.getDataset(), scopeKeys); + options = config.createResolver(scopes, this.getContext(index, active, transition)); + } + const animations = new Animations(chart, options && options.animations); + if (options && options._cacheable) { + cache[cacheKey] = Object.freeze(animations); + } + return animations; + } + getSharedOptions(options) { + if (!options.$shared) { + return; + } + return this._sharedOptions || (this._sharedOptions = Object.assign({}, options)); + } + includeOptions(mode, sharedOptions) { + return !sharedOptions || isDirectUpdateMode(mode) || this.chart._animationsDisabled; + } + updateElement(element, index, properties, mode) { + if (isDirectUpdateMode(mode)) { + Object.assign(element, properties); + } else { + this._resolveAnimations(index, mode).update(element, properties); + } + } + updateSharedOptions(sharedOptions, mode, newOptions) { + if (sharedOptions && !isDirectUpdateMode(mode)) { + this._resolveAnimations(undefined, mode).update(sharedOptions, newOptions); + } + } + _setStyle(element, index, mode, active) { + element.active = active; + const options = this.getStyle(index, active); + this._resolveAnimations(index, mode, active).update(element, { + options: (!active && this.getSharedOptions(options)) || options + }); + } + removeHoverStyle(element, datasetIndex, index) { + this._setStyle(element, index, 'active', false); + } + setHoverStyle(element, datasetIndex, index) { + this._setStyle(element, index, 'active', true); + } + _removeDatasetHoverStyle() { + const element = this._cachedMeta.dataset; + if (element) { + this._setStyle(element, undefined, 'active', false); + } + } + _setDatasetHoverStyle() { + const element = this._cachedMeta.dataset; + if (element) { + this._setStyle(element, undefined, 'active', true); + } + } + _resyncElements(resetNewElements) { + const data = this._data; + const elements = this._cachedMeta.data; + for (const [method, arg1, arg2] of this._syncList) { + this[method](arg1, arg2); + } + this._syncList = []; + const numMeta = elements.length; + const numData = data.length; + const count = Math.min(numData, numMeta); + if (count) { + this.parse(0, count); + } + if (numData > numMeta) { + this._insertElements(numMeta, numData - numMeta, resetNewElements); + } else if (numData < numMeta) { + this._removeElements(numData, numMeta - numData); + } + } + _insertElements(start, count, resetNewElements = true) { + const meta = this._cachedMeta; + const data = meta.data; + const end = start + count; + let i; + const move = (arr) => { + arr.length += count; + for (i = arr.length - 1; i >= end; i--) { + arr[i] = arr[i - count]; + } + }; + move(data); + for (i = start; i < end; ++i) { + data[i] = new this.dataElementType(); + } + if (this._parsing) { + move(meta._parsed); + } + this.parse(start, count); + if (resetNewElements) { + this.updateElements(data, start, count, 'reset'); + } + } + updateElements(element, start, count, mode) {} + _removeElements(start, count) { + const meta = this._cachedMeta; + if (this._parsing) { + const removed = meta._parsed.splice(start, count); + if (meta._stacked) { + clearStacks(meta, removed); + } + } + meta.data.splice(start, count); + } + _sync(args) { + if (this._parsing) { + this._syncList.push(args); + } else { + const [method, arg1, arg2] = args; + this[method](arg1, arg2); + } + this.chart._dataChanges.push([this.index, ...args]); + } + _onDataPush() { + const count = arguments.length; + this._sync(['_insertElements', this.getDataset().data.length - count, count]); + } + _onDataPop() { + this._sync(['_removeElements', this._cachedMeta.data.length - 1, 1]); + } + _onDataShift() { + this._sync(['_removeElements', 0, 1]); + } + _onDataSplice(start, count) { + if (count) { + this._sync(['_removeElements', start, count]); + } + const newCount = arguments.length - 2; + if (newCount) { + this._sync(['_insertElements', start, newCount]); + } + } + _onDataUnshift() { + this._sync(['_insertElements', 0, arguments.length]); + } +} +DatasetController.defaults = {}; +DatasetController.prototype.datasetElementType = null; +DatasetController.prototype.dataElementType = null; + +class Element { + constructor() { + this.x = undefined; + this.y = undefined; + this.active = false; + this.options = undefined; + this.$animations = undefined; + } + tooltipPosition(useFinalPosition) { + const {x, y} = this.getProps(['x', 'y'], useFinalPosition); + return {x, y}; + } + hasValue() { + return isNumber(this.x) && isNumber(this.y); + } + getProps(props, final) { + const anims = this.$animations; + if (!final || !anims) { + return this; + } + const ret = {}; + props.forEach(prop => { + ret[prop] = anims[prop] && anims[prop].active() ? anims[prop]._to : this[prop]; + }); + return ret; + } +} +Element.defaults = {}; +Element.defaultRoutes = undefined; + +const formatters = { + values(value) { + return isArray(value) ? value : '' + value; + }, + numeric(tickValue, index, ticks) { + if (tickValue === 0) { + return '0'; + } + const locale = this.chart.options.locale; + let notation; + let delta = tickValue; + if (ticks.length > 1) { + const maxTick = Math.max(Math.abs(ticks[0].value), Math.abs(ticks[ticks.length - 1].value)); + if (maxTick < 1e-4 || maxTick > 1e+15) { + notation = 'scientific'; + } + delta = calculateDelta(tickValue, ticks); + } + const logDelta = log10(Math.abs(delta)); + const numDecimal = Math.max(Math.min(-1 * Math.floor(logDelta), 20), 0); + const options = {notation, minimumFractionDigits: numDecimal, maximumFractionDigits: numDecimal}; + Object.assign(options, this.options.ticks.format); + return formatNumber(tickValue, locale, options); + }, + logarithmic(tickValue, index, ticks) { + if (tickValue === 0) { + return '0'; + } + const remain = tickValue / (Math.pow(10, Math.floor(log10(tickValue)))); + if (remain === 1 || remain === 2 || remain === 5) { + return formatters.numeric.call(this, tickValue, index, ticks); + } + return ''; + } +}; +function calculateDelta(tickValue, ticks) { + let delta = ticks.length > 3 ? ticks[2].value - ticks[1].value : ticks[1].value - ticks[0].value; + if (Math.abs(delta) >= 1 && tickValue !== Math.floor(tickValue)) { + delta = tickValue - Math.floor(tickValue); + } + return delta; +} +var Ticks = {formatters}; + +defaults.set('scale', { + display: true, + offset: false, + reverse: false, + beginAtZero: false, + bounds: 'ticks', + grace: 0, + grid: { + display: true, + lineWidth: 1, + drawBorder: true, + drawOnChartArea: true, + drawTicks: true, + tickLength: 8, + tickWidth: (_ctx, options) => options.lineWidth, + tickColor: (_ctx, options) => options.color, + offset: false, + borderDash: [], + borderDashOffset: 0.0, + borderWidth: 1 + }, + title: { + display: false, + text: '', + padding: { + top: 4, + bottom: 4 + } + }, + ticks: { + minRotation: 0, + maxRotation: 50, + mirror: false, + textStrokeWidth: 0, + textStrokeColor: '', + padding: 3, + display: true, + autoSkip: true, + autoSkipPadding: 3, + labelOffset: 0, + callback: Ticks.formatters.values, + minor: {}, + major: {}, + align: 'center', + crossAlign: 'near', + showLabelBackdrop: false, + backdropColor: 'rgba(255, 255, 255, 0.75)', + backdropPadding: 2, + } +}); +defaults.route('scale.ticks', 'color', '', 'color'); +defaults.route('scale.grid', 'color', '', 'borderColor'); +defaults.route('scale.grid', 'borderColor', '', 'borderColor'); +defaults.route('scale.title', 'color', '', 'color'); +defaults.describe('scale', { + _fallback: false, + _scriptable: (name) => !name.startsWith('before') && !name.startsWith('after') && name !== 'callback' && name !== 'parser', + _indexable: (name) => name !== 'borderDash' && name !== 'tickBorderDash', +}); +defaults.describe('scales', { + _fallback: 'scale', +}); +defaults.describe('scale.ticks', { + _scriptable: (name) => name !== 'backdropPadding' && name !== 'callback', + _indexable: (name) => name !== 'backdropPadding', +}); + +function autoSkip(scale, ticks) { + const tickOpts = scale.options.ticks; + const ticksLimit = tickOpts.maxTicksLimit || determineMaxTicks(scale); + const majorIndices = tickOpts.major.enabled ? getMajorIndices(ticks) : []; + const numMajorIndices = majorIndices.length; + const first = majorIndices[0]; + const last = majorIndices[numMajorIndices - 1]; + const newTicks = []; + if (numMajorIndices > ticksLimit) { + skipMajors(ticks, newTicks, majorIndices, numMajorIndices / ticksLimit); + return newTicks; + } + const spacing = calculateSpacing(majorIndices, ticks, ticksLimit); + if (numMajorIndices > 0) { + let i, ilen; + const avgMajorSpacing = numMajorIndices > 1 ? Math.round((last - first) / (numMajorIndices - 1)) : null; + skip(ticks, newTicks, spacing, isNullOrUndef(avgMajorSpacing) ? 0 : first - avgMajorSpacing, first); + for (i = 0, ilen = numMajorIndices - 1; i < ilen; i++) { + skip(ticks, newTicks, spacing, majorIndices[i], majorIndices[i + 1]); + } + skip(ticks, newTicks, spacing, last, isNullOrUndef(avgMajorSpacing) ? ticks.length : last + avgMajorSpacing); + return newTicks; + } + skip(ticks, newTicks, spacing); + return newTicks; +} +function determineMaxTicks(scale) { + const offset = scale.options.offset; + const tickLength = scale._tickSize(); + const maxScale = scale._length / tickLength + (offset ? 0 : 1); + const maxChart = scale._maxLength / tickLength; + return Math.floor(Math.min(maxScale, maxChart)); +} +function calculateSpacing(majorIndices, ticks, ticksLimit) { + const evenMajorSpacing = getEvenSpacing(majorIndices); + const spacing = ticks.length / ticksLimit; + if (!evenMajorSpacing) { + return Math.max(spacing, 1); + } + const factors = _factorize(evenMajorSpacing); + for (let i = 0, ilen = factors.length - 1; i < ilen; i++) { + const factor = factors[i]; + if (factor > spacing) { + return factor; + } + } + return Math.max(spacing, 1); +} +function getMajorIndices(ticks) { + const result = []; + let i, ilen; + for (i = 0, ilen = ticks.length; i < ilen; i++) { + if (ticks[i].major) { + result.push(i); + } + } + return result; +} +function skipMajors(ticks, newTicks, majorIndices, spacing) { + let count = 0; + let next = majorIndices[0]; + let i; + spacing = Math.ceil(spacing); + for (i = 0; i < ticks.length; i++) { + if (i === next) { + newTicks.push(ticks[i]); + count++; + next = majorIndices[count * spacing]; + } + } +} +function skip(ticks, newTicks, spacing, majorStart, majorEnd) { + const start = valueOrDefault(majorStart, 0); + const end = Math.min(valueOrDefault(majorEnd, ticks.length), ticks.length); + let count = 0; + let length, i, next; + spacing = Math.ceil(spacing); + if (majorEnd) { + length = majorEnd - majorStart; + spacing = length / Math.floor(length / spacing); + } + next = start; + while (next < 0) { + count++; + next = Math.round(start + count * spacing); + } + for (i = Math.max(start, 0); i < end; i++) { + if (i === next) { + newTicks.push(ticks[i]); + count++; + next = Math.round(start + count * spacing); + } + } +} +function getEvenSpacing(arr) { + const len = arr.length; + let i, diff; + if (len < 2) { + return false; + } + for (diff = arr[0], i = 1; i < len; ++i) { + if (arr[i] - arr[i - 1] !== diff) { + return false; + } + } + return diff; +} + +const reverseAlign = (align) => align === 'left' ? 'right' : align === 'right' ? 'left' : align; +const offsetFromEdge = (scale, edge, offset) => edge === 'top' || edge === 'left' ? scale[edge] + offset : scale[edge] - offset; +function sample(arr, numItems) { + const result = []; + const increment = arr.length / numItems; + const len = arr.length; + let i = 0; + for (; i < len; i += increment) { + result.push(arr[Math.floor(i)]); + } + return result; +} +function getPixelForGridLine(scale, index, offsetGridLines) { + const length = scale.ticks.length; + const validIndex = Math.min(index, length - 1); + const start = scale._startPixel; + const end = scale._endPixel; + const epsilon = 1e-6; + let lineValue = scale.getPixelForTick(validIndex); + let offset; + if (offsetGridLines) { + if (length === 1) { + offset = Math.max(lineValue - start, end - lineValue); + } else if (index === 0) { + offset = (scale.getPixelForTick(1) - lineValue) / 2; + } else { + offset = (lineValue - scale.getPixelForTick(validIndex - 1)) / 2; + } + lineValue += validIndex < index ? offset : -offset; + if (lineValue < start - epsilon || lineValue > end + epsilon) { + return; + } + } + return lineValue; +} +function garbageCollect(caches, length) { + each(caches, (cache) => { + const gc = cache.gc; + const gcLen = gc.length / 2; + let i; + if (gcLen > length) { + for (i = 0; i < gcLen; ++i) { + delete cache.data[gc[i]]; + } + gc.splice(0, gcLen); + } + }); +} +function getTickMarkLength(options) { + return options.drawTicks ? options.tickLength : 0; +} +function getTitleHeight(options, fallback) { + if (!options.display) { + return 0; + } + const font = toFont(options.font, fallback); + const padding = toPadding(options.padding); + const lines = isArray(options.text) ? options.text.length : 1; + return (lines * font.lineHeight) + padding.height; +} +function createScaleContext(parent, scale) { + return createContext(parent, { + scale, + type: 'scale' + }); +} +function createTickContext(parent, index, tick) { + return createContext(parent, { + tick, + index, + type: 'tick' + }); +} +function titleAlign(align, position, reverse) { + let ret = _toLeftRightCenter(align); + if ((reverse && position !== 'right') || (!reverse && position === 'right')) { + ret = reverseAlign(ret); + } + return ret; +} +function titleArgs(scale, offset, position, align) { + const {top, left, bottom, right, chart} = scale; + const {chartArea, scales} = chart; + let rotation = 0; + let maxWidth, titleX, titleY; + const height = bottom - top; + const width = right - left; + if (scale.isHorizontal()) { + titleX = _alignStartEnd(align, left, right); + if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + titleY = scales[positionAxisID].getPixelForValue(value) + height - offset; + } else if (position === 'center') { + titleY = (chartArea.bottom + chartArea.top) / 2 + height - offset; + } else { + titleY = offsetFromEdge(scale, position, offset); + } + maxWidth = right - left; + } else { + if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + titleX = scales[positionAxisID].getPixelForValue(value) - width + offset; + } else if (position === 'center') { + titleX = (chartArea.left + chartArea.right) / 2 - width + offset; + } else { + titleX = offsetFromEdge(scale, position, offset); + } + titleY = _alignStartEnd(align, bottom, top); + rotation = position === 'left' ? -HALF_PI : HALF_PI; + } + return {titleX, titleY, maxWidth, rotation}; +} +class Scale extends Element { + constructor(cfg) { + super(); + this.id = cfg.id; + this.type = cfg.type; + this.options = undefined; + this.ctx = cfg.ctx; + this.chart = cfg.chart; + this.top = undefined; + this.bottom = undefined; + this.left = undefined; + this.right = undefined; + this.width = undefined; + this.height = undefined; + this._margins = { + left: 0, + right: 0, + top: 0, + bottom: 0 + }; + this.maxWidth = undefined; + this.maxHeight = undefined; + this.paddingTop = undefined; + this.paddingBottom = undefined; + this.paddingLeft = undefined; + this.paddingRight = undefined; + this.axis = undefined; + this.labelRotation = undefined; + this.min = undefined; + this.max = undefined; + this._range = undefined; + this.ticks = []; + this._gridLineItems = null; + this._labelItems = null; + this._labelSizes = null; + this._length = 0; + this._maxLength = 0; + this._longestTextCache = {}; + this._startPixel = undefined; + this._endPixel = undefined; + this._reversePixels = false; + this._userMax = undefined; + this._userMin = undefined; + this._suggestedMax = undefined; + this._suggestedMin = undefined; + this._ticksLength = 0; + this._borderValue = 0; + this._cache = {}; + this._dataLimitsCached = false; + this.$context = undefined; + } + init(options) { + this.options = options.setContext(this.getContext()); + this.axis = options.axis; + this._userMin = this.parse(options.min); + this._userMax = this.parse(options.max); + this._suggestedMin = this.parse(options.suggestedMin); + this._suggestedMax = this.parse(options.suggestedMax); + } + parse(raw, index) { + return raw; + } + getUserBounds() { + let {_userMin, _userMax, _suggestedMin, _suggestedMax} = this; + _userMin = finiteOrDefault(_userMin, Number.POSITIVE_INFINITY); + _userMax = finiteOrDefault(_userMax, Number.NEGATIVE_INFINITY); + _suggestedMin = finiteOrDefault(_suggestedMin, Number.POSITIVE_INFINITY); + _suggestedMax = finiteOrDefault(_suggestedMax, Number.NEGATIVE_INFINITY); + return { + min: finiteOrDefault(_userMin, _suggestedMin), + max: finiteOrDefault(_userMax, _suggestedMax), + minDefined: isNumberFinite(_userMin), + maxDefined: isNumberFinite(_userMax) + }; + } + getMinMax(canStack) { + let {min, max, minDefined, maxDefined} = this.getUserBounds(); + let range; + if (minDefined && maxDefined) { + return {min, max}; + } + const metas = this.getMatchingVisibleMetas(); + for (let i = 0, ilen = metas.length; i < ilen; ++i) { + range = metas[i].controller.getMinMax(this, canStack); + if (!minDefined) { + min = Math.min(min, range.min); + } + if (!maxDefined) { + max = Math.max(max, range.max); + } + } + min = maxDefined && min > max ? max : min; + max = minDefined && min > max ? min : max; + return { + min: finiteOrDefault(min, finiteOrDefault(max, min)), + max: finiteOrDefault(max, finiteOrDefault(min, max)) + }; + } + getPadding() { + return { + left: this.paddingLeft || 0, + top: this.paddingTop || 0, + right: this.paddingRight || 0, + bottom: this.paddingBottom || 0 + }; + } + getTicks() { + return this.ticks; + } + getLabels() { + const data = this.chart.data; + return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels || []; + } + beforeLayout() { + this._cache = {}; + this._dataLimitsCached = false; + } + beforeUpdate() { + callback(this.options.beforeUpdate, [this]); + } + update(maxWidth, maxHeight, margins) { + const {beginAtZero, grace, ticks: tickOpts} = this.options; + const sampleSize = tickOpts.sampleSize; + this.beforeUpdate(); + this.maxWidth = maxWidth; + this.maxHeight = maxHeight; + this._margins = margins = Object.assign({ + left: 0, + right: 0, + top: 0, + bottom: 0 + }, margins); + this.ticks = null; + this._labelSizes = null; + this._gridLineItems = null; + this._labelItems = null; + this.beforeSetDimensions(); + this.setDimensions(); + this.afterSetDimensions(); + this._maxLength = this.isHorizontal() + ? this.width + margins.left + margins.right + : this.height + margins.top + margins.bottom; + if (!this._dataLimitsCached) { + this.beforeDataLimits(); + this.determineDataLimits(); + this.afterDataLimits(); + this._range = _addGrace(this, grace, beginAtZero); + this._dataLimitsCached = true; + } + this.beforeBuildTicks(); + this.ticks = this.buildTicks() || []; + this.afterBuildTicks(); + const samplingEnabled = sampleSize < this.ticks.length; + this._convertTicksToLabels(samplingEnabled ? sample(this.ticks, sampleSize) : this.ticks); + this.configure(); + this.beforeCalculateLabelRotation(); + this.calculateLabelRotation(); + this.afterCalculateLabelRotation(); + if (tickOpts.display && (tickOpts.autoSkip || tickOpts.source === 'auto')) { + this.ticks = autoSkip(this, this.ticks); + this._labelSizes = null; + } + if (samplingEnabled) { + this._convertTicksToLabels(this.ticks); + } + this.beforeFit(); + this.fit(); + this.afterFit(); + this.afterUpdate(); + } + configure() { + let reversePixels = this.options.reverse; + let startPixel, endPixel; + if (this.isHorizontal()) { + startPixel = this.left; + endPixel = this.right; + } else { + startPixel = this.top; + endPixel = this.bottom; + reversePixels = !reversePixels; + } + this._startPixel = startPixel; + this._endPixel = endPixel; + this._reversePixels = reversePixels; + this._length = endPixel - startPixel; + this._alignToPixels = this.options.alignToPixels; + } + afterUpdate() { + callback(this.options.afterUpdate, [this]); + } + beforeSetDimensions() { + callback(this.options.beforeSetDimensions, [this]); + } + setDimensions() { + if (this.isHorizontal()) { + this.width = this.maxWidth; + this.left = 0; + this.right = this.width; + } else { + this.height = this.maxHeight; + this.top = 0; + this.bottom = this.height; + } + this.paddingLeft = 0; + this.paddingTop = 0; + this.paddingRight = 0; + this.paddingBottom = 0; + } + afterSetDimensions() { + callback(this.options.afterSetDimensions, [this]); + } + _callHooks(name) { + this.chart.notifyPlugins(name, this.getContext()); + callback(this.options[name], [this]); + } + beforeDataLimits() { + this._callHooks('beforeDataLimits'); + } + determineDataLimits() {} + afterDataLimits() { + this._callHooks('afterDataLimits'); + } + beforeBuildTicks() { + this._callHooks('beforeBuildTicks'); + } + buildTicks() { + return []; + } + afterBuildTicks() { + this._callHooks('afterBuildTicks'); + } + beforeTickToLabelConversion() { + callback(this.options.beforeTickToLabelConversion, [this]); + } + generateTickLabels(ticks) { + const tickOpts = this.options.ticks; + let i, ilen, tick; + for (i = 0, ilen = ticks.length; i < ilen; i++) { + tick = ticks[i]; + tick.label = callback(tickOpts.callback, [tick.value, i, ticks], this); + } + } + afterTickToLabelConversion() { + callback(this.options.afterTickToLabelConversion, [this]); + } + beforeCalculateLabelRotation() { + callback(this.options.beforeCalculateLabelRotation, [this]); + } + calculateLabelRotation() { + const options = this.options; + const tickOpts = options.ticks; + const numTicks = this.ticks.length; + const minRotation = tickOpts.minRotation || 0; + const maxRotation = tickOpts.maxRotation; + let labelRotation = minRotation; + let tickWidth, maxHeight, maxLabelDiagonal; + if (!this._isVisible() || !tickOpts.display || minRotation >= maxRotation || numTicks <= 1 || !this.isHorizontal()) { + this.labelRotation = minRotation; + return; + } + const labelSizes = this._getLabelSizes(); + const maxLabelWidth = labelSizes.widest.width; + const maxLabelHeight = labelSizes.highest.height; + const maxWidth = _limitValue(this.chart.width - maxLabelWidth, 0, this.maxWidth); + tickWidth = options.offset ? this.maxWidth / numTicks : maxWidth / (numTicks - 1); + if (maxLabelWidth + 6 > tickWidth) { + tickWidth = maxWidth / (numTicks - (options.offset ? 0.5 : 1)); + maxHeight = this.maxHeight - getTickMarkLength(options.grid) + - tickOpts.padding - getTitleHeight(options.title, this.chart.options.font); + maxLabelDiagonal = Math.sqrt(maxLabelWidth * maxLabelWidth + maxLabelHeight * maxLabelHeight); + labelRotation = toDegrees(Math.min( + Math.asin(_limitValue((labelSizes.highest.height + 6) / tickWidth, -1, 1)), + Math.asin(_limitValue(maxHeight / maxLabelDiagonal, -1, 1)) - Math.asin(_limitValue(maxLabelHeight / maxLabelDiagonal, -1, 1)) + )); + labelRotation = Math.max(minRotation, Math.min(maxRotation, labelRotation)); + } + this.labelRotation = labelRotation; + } + afterCalculateLabelRotation() { + callback(this.options.afterCalculateLabelRotation, [this]); + } + beforeFit() { + callback(this.options.beforeFit, [this]); + } + fit() { + const minSize = { + width: 0, + height: 0 + }; + const {chart, options: {ticks: tickOpts, title: titleOpts, grid: gridOpts}} = this; + const display = this._isVisible(); + const isHorizontal = this.isHorizontal(); + if (display) { + const titleHeight = getTitleHeight(titleOpts, chart.options.font); + if (isHorizontal) { + minSize.width = this.maxWidth; + minSize.height = getTickMarkLength(gridOpts) + titleHeight; + } else { + minSize.height = this.maxHeight; + minSize.width = getTickMarkLength(gridOpts) + titleHeight; + } + if (tickOpts.display && this.ticks.length) { + const {first, last, widest, highest} = this._getLabelSizes(); + const tickPadding = tickOpts.padding * 2; + const angleRadians = toRadians(this.labelRotation); + const cos = Math.cos(angleRadians); + const sin = Math.sin(angleRadians); + if (isHorizontal) { + const labelHeight = tickOpts.mirror ? 0 : sin * widest.width + cos * highest.height; + minSize.height = Math.min(this.maxHeight, minSize.height + labelHeight + tickPadding); + } else { + const labelWidth = tickOpts.mirror ? 0 : cos * widest.width + sin * highest.height; + minSize.width = Math.min(this.maxWidth, minSize.width + labelWidth + tickPadding); + } + this._calculatePadding(first, last, sin, cos); + } + } + this._handleMargins(); + if (isHorizontal) { + this.width = this._length = chart.width - this._margins.left - this._margins.right; + this.height = minSize.height; + } else { + this.width = minSize.width; + this.height = this._length = chart.height - this._margins.top - this._margins.bottom; + } + } + _calculatePadding(first, last, sin, cos) { + const {ticks: {align, padding}, position} = this.options; + const isRotated = this.labelRotation !== 0; + const labelsBelowTicks = position !== 'top' && this.axis === 'x'; + if (this.isHorizontal()) { + const offsetLeft = this.getPixelForTick(0) - this.left; + const offsetRight = this.right - this.getPixelForTick(this.ticks.length - 1); + let paddingLeft = 0; + let paddingRight = 0; + if (isRotated) { + if (labelsBelowTicks) { + paddingLeft = cos * first.width; + paddingRight = sin * last.height; + } else { + paddingLeft = sin * first.height; + paddingRight = cos * last.width; + } + } else if (align === 'start') { + paddingRight = last.width; + } else if (align === 'end') { + paddingLeft = first.width; + } else { + paddingLeft = first.width / 2; + paddingRight = last.width / 2; + } + this.paddingLeft = Math.max((paddingLeft - offsetLeft + padding) * this.width / (this.width - offsetLeft), 0); + this.paddingRight = Math.max((paddingRight - offsetRight + padding) * this.width / (this.width - offsetRight), 0); + } else { + let paddingTop = last.height / 2; + let paddingBottom = first.height / 2; + if (align === 'start') { + paddingTop = 0; + paddingBottom = first.height; + } else if (align === 'end') { + paddingTop = last.height; + paddingBottom = 0; + } + this.paddingTop = paddingTop + padding; + this.paddingBottom = paddingBottom + padding; + } + } + _handleMargins() { + if (this._margins) { + this._margins.left = Math.max(this.paddingLeft, this._margins.left); + this._margins.top = Math.max(this.paddingTop, this._margins.top); + this._margins.right = Math.max(this.paddingRight, this._margins.right); + this._margins.bottom = Math.max(this.paddingBottom, this._margins.bottom); + } + } + afterFit() { + callback(this.options.afterFit, [this]); + } + isHorizontal() { + const {axis, position} = this.options; + return position === 'top' || position === 'bottom' || axis === 'x'; + } + isFullSize() { + return this.options.fullSize; + } + _convertTicksToLabels(ticks) { + this.beforeTickToLabelConversion(); + this.generateTickLabels(ticks); + let i, ilen; + for (i = 0, ilen = ticks.length; i < ilen; i++) { + if (isNullOrUndef(ticks[i].label)) { + ticks.splice(i, 1); + ilen--; + i--; + } + } + this.afterTickToLabelConversion(); + } + _getLabelSizes() { + let labelSizes = this._labelSizes; + if (!labelSizes) { + const sampleSize = this.options.ticks.sampleSize; + let ticks = this.ticks; + if (sampleSize < ticks.length) { + ticks = sample(ticks, sampleSize); + } + this._labelSizes = labelSizes = this._computeLabelSizes(ticks, ticks.length); + } + return labelSizes; + } + _computeLabelSizes(ticks, length) { + const {ctx, _longestTextCache: caches} = this; + const widths = []; + const heights = []; + let widestLabelSize = 0; + let highestLabelSize = 0; + let i, j, jlen, label, tickFont, fontString, cache, lineHeight, width, height, nestedLabel; + for (i = 0; i < length; ++i) { + label = ticks[i].label; + tickFont = this._resolveTickFontOptions(i); + ctx.font = fontString = tickFont.string; + cache = caches[fontString] = caches[fontString] || {data: {}, gc: []}; + lineHeight = tickFont.lineHeight; + width = height = 0; + if (!isNullOrUndef(label) && !isArray(label)) { + width = _measureText(ctx, cache.data, cache.gc, width, label); + height = lineHeight; + } else if (isArray(label)) { + for (j = 0, jlen = label.length; j < jlen; ++j) { + nestedLabel = label[j]; + if (!isNullOrUndef(nestedLabel) && !isArray(nestedLabel)) { + width = _measureText(ctx, cache.data, cache.gc, width, nestedLabel); + height += lineHeight; + } + } + } + widths.push(width); + heights.push(height); + widestLabelSize = Math.max(width, widestLabelSize); + highestLabelSize = Math.max(height, highestLabelSize); + } + garbageCollect(caches, length); + const widest = widths.indexOf(widestLabelSize); + const highest = heights.indexOf(highestLabelSize); + const valueAt = (idx) => ({width: widths[idx] || 0, height: heights[idx] || 0}); + return { + first: valueAt(0), + last: valueAt(length - 1), + widest: valueAt(widest), + highest: valueAt(highest), + widths, + heights, + }; + } + getLabelForValue(value) { + return value; + } + getPixelForValue(value, index) { + return NaN; + } + getValueForPixel(pixel) {} + getPixelForTick(index) { + const ticks = this.ticks; + if (index < 0 || index > ticks.length - 1) { + return null; + } + return this.getPixelForValue(ticks[index].value); + } + getPixelForDecimal(decimal) { + if (this._reversePixels) { + decimal = 1 - decimal; + } + const pixel = this._startPixel + decimal * this._length; + return _int16Range(this._alignToPixels ? _alignPixel(this.chart, pixel, 0) : pixel); + } + getDecimalForPixel(pixel) { + const decimal = (pixel - this._startPixel) / this._length; + return this._reversePixels ? 1 - decimal : decimal; + } + getBasePixel() { + return this.getPixelForValue(this.getBaseValue()); + } + getBaseValue() { + const {min, max} = this; + return min < 0 && max < 0 ? max : + min > 0 && max > 0 ? min : + 0; + } + getContext(index) { + const ticks = this.ticks || []; + if (index >= 0 && index < ticks.length) { + const tick = ticks[index]; + return tick.$context || + (tick.$context = createTickContext(this.getContext(), index, tick)); + } + return this.$context || + (this.$context = createScaleContext(this.chart.getContext(), this)); + } + _tickSize() { + const optionTicks = this.options.ticks; + const rot = toRadians(this.labelRotation); + const cos = Math.abs(Math.cos(rot)); + const sin = Math.abs(Math.sin(rot)); + const labelSizes = this._getLabelSizes(); + const padding = optionTicks.autoSkipPadding || 0; + const w = labelSizes ? labelSizes.widest.width + padding : 0; + const h = labelSizes ? labelSizes.highest.height + padding : 0; + return this.isHorizontal() + ? h * cos > w * sin ? w / cos : h / sin + : h * sin < w * cos ? h / cos : w / sin; + } + _isVisible() { + const display = this.options.display; + if (display !== 'auto') { + return !!display; + } + return this.getMatchingVisibleMetas().length > 0; + } + _computeGridLineItems(chartArea) { + const axis = this.axis; + const chart = this.chart; + const options = this.options; + const {grid, position} = options; + const offset = grid.offset; + const isHorizontal = this.isHorizontal(); + const ticks = this.ticks; + const ticksLength = ticks.length + (offset ? 1 : 0); + const tl = getTickMarkLength(grid); + const items = []; + const borderOpts = grid.setContext(this.getContext()); + const axisWidth = borderOpts.drawBorder ? borderOpts.borderWidth : 0; + const axisHalfWidth = axisWidth / 2; + const alignBorderValue = function(pixel) { + return _alignPixel(chart, pixel, axisWidth); + }; + let borderValue, i, lineValue, alignedLineValue; + let tx1, ty1, tx2, ty2, x1, y1, x2, y2; + if (position === 'top') { + borderValue = alignBorderValue(this.bottom); + ty1 = this.bottom - tl; + ty2 = borderValue - axisHalfWidth; + y1 = alignBorderValue(chartArea.top) + axisHalfWidth; + y2 = chartArea.bottom; + } else if (position === 'bottom') { + borderValue = alignBorderValue(this.top); + y1 = chartArea.top; + y2 = alignBorderValue(chartArea.bottom) - axisHalfWidth; + ty1 = borderValue + axisHalfWidth; + ty2 = this.top + tl; + } else if (position === 'left') { + borderValue = alignBorderValue(this.right); + tx1 = this.right - tl; + tx2 = borderValue - axisHalfWidth; + x1 = alignBorderValue(chartArea.left) + axisHalfWidth; + x2 = chartArea.right; + } else if (position === 'right') { + borderValue = alignBorderValue(this.left); + x1 = chartArea.left; + x2 = alignBorderValue(chartArea.right) - axisHalfWidth; + tx1 = borderValue + axisHalfWidth; + tx2 = this.left + tl; + } else if (axis === 'x') { + if (position === 'center') { + borderValue = alignBorderValue((chartArea.top + chartArea.bottom) / 2 + 0.5); + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value)); + } + y1 = chartArea.top; + y2 = chartArea.bottom; + ty1 = borderValue + axisHalfWidth; + ty2 = ty1 + tl; + } else if (axis === 'y') { + if (position === 'center') { + borderValue = alignBorderValue((chartArea.left + chartArea.right) / 2); + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value)); + } + tx1 = borderValue - axisHalfWidth; + tx2 = tx1 - tl; + x1 = chartArea.left; + x2 = chartArea.right; + } + const limit = valueOrDefault(options.ticks.maxTicksLimit, ticksLength); + const step = Math.max(1, Math.ceil(ticksLength / limit)); + for (i = 0; i < ticksLength; i += step) { + const optsAtIndex = grid.setContext(this.getContext(i)); + const lineWidth = optsAtIndex.lineWidth; + const lineColor = optsAtIndex.color; + const borderDash = grid.borderDash || []; + const borderDashOffset = optsAtIndex.borderDashOffset; + const tickWidth = optsAtIndex.tickWidth; + const tickColor = optsAtIndex.tickColor; + const tickBorderDash = optsAtIndex.tickBorderDash || []; + const tickBorderDashOffset = optsAtIndex.tickBorderDashOffset; + lineValue = getPixelForGridLine(this, i, offset); + if (lineValue === undefined) { + continue; + } + alignedLineValue = _alignPixel(chart, lineValue, lineWidth); + if (isHorizontal) { + tx1 = tx2 = x1 = x2 = alignedLineValue; + } else { + ty1 = ty2 = y1 = y2 = alignedLineValue; + } + items.push({ + tx1, + ty1, + tx2, + ty2, + x1, + y1, + x2, + y2, + width: lineWidth, + color: lineColor, + borderDash, + borderDashOffset, + tickWidth, + tickColor, + tickBorderDash, + tickBorderDashOffset, + }); + } + this._ticksLength = ticksLength; + this._borderValue = borderValue; + return items; + } + _computeLabelItems(chartArea) { + const axis = this.axis; + const options = this.options; + const {position, ticks: optionTicks} = options; + const isHorizontal = this.isHorizontal(); + const ticks = this.ticks; + const {align, crossAlign, padding, mirror} = optionTicks; + const tl = getTickMarkLength(options.grid); + const tickAndPadding = tl + padding; + const hTickAndPadding = mirror ? -padding : tickAndPadding; + const rotation = -toRadians(this.labelRotation); + const items = []; + let i, ilen, tick, label, x, y, textAlign, pixel, font, lineHeight, lineCount, textOffset; + let textBaseline = 'middle'; + if (position === 'top') { + y = this.bottom - hTickAndPadding; + textAlign = this._getXAxisLabelAlignment(); + } else if (position === 'bottom') { + y = this.top + hTickAndPadding; + textAlign = this._getXAxisLabelAlignment(); + } else if (position === 'left') { + const ret = this._getYAxisLabelAlignment(tl); + textAlign = ret.textAlign; + x = ret.x; + } else if (position === 'right') { + const ret = this._getYAxisLabelAlignment(tl); + textAlign = ret.textAlign; + x = ret.x; + } else if (axis === 'x') { + if (position === 'center') { + y = ((chartArea.top + chartArea.bottom) / 2) + tickAndPadding; + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + y = this.chart.scales[positionAxisID].getPixelForValue(value) + tickAndPadding; + } + textAlign = this._getXAxisLabelAlignment(); + } else if (axis === 'y') { + if (position === 'center') { + x = ((chartArea.left + chartArea.right) / 2) - tickAndPadding; + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + x = this.chart.scales[positionAxisID].getPixelForValue(value); + } + textAlign = this._getYAxisLabelAlignment(tl).textAlign; + } + if (axis === 'y') { + if (align === 'start') { + textBaseline = 'top'; + } else if (align === 'end') { + textBaseline = 'bottom'; + } + } + const labelSizes = this._getLabelSizes(); + for (i = 0, ilen = ticks.length; i < ilen; ++i) { + tick = ticks[i]; + label = tick.label; + const optsAtIndex = optionTicks.setContext(this.getContext(i)); + pixel = this.getPixelForTick(i) + optionTicks.labelOffset; + font = this._resolveTickFontOptions(i); + lineHeight = font.lineHeight; + lineCount = isArray(label) ? label.length : 1; + const halfCount = lineCount / 2; + const color = optsAtIndex.color; + const strokeColor = optsAtIndex.textStrokeColor; + const strokeWidth = optsAtIndex.textStrokeWidth; + if (isHorizontal) { + x = pixel; + if (position === 'top') { + if (crossAlign === 'near' || rotation !== 0) { + textOffset = -lineCount * lineHeight + lineHeight / 2; + } else if (crossAlign === 'center') { + textOffset = -labelSizes.highest.height / 2 - halfCount * lineHeight + lineHeight; + } else { + textOffset = -labelSizes.highest.height + lineHeight / 2; + } + } else { + if (crossAlign === 'near' || rotation !== 0) { + textOffset = lineHeight / 2; + } else if (crossAlign === 'center') { + textOffset = labelSizes.highest.height / 2 - halfCount * lineHeight; + } else { + textOffset = labelSizes.highest.height - lineCount * lineHeight; + } + } + if (mirror) { + textOffset *= -1; + } + } else { + y = pixel; + textOffset = (1 - lineCount) * lineHeight / 2; + } + let backdrop; + if (optsAtIndex.showLabelBackdrop) { + const labelPadding = toPadding(optsAtIndex.backdropPadding); + const height = labelSizes.heights[i]; + const width = labelSizes.widths[i]; + let top = y + textOffset - labelPadding.top; + let left = x - labelPadding.left; + switch (textBaseline) { + case 'middle': + top -= height / 2; + break; + case 'bottom': + top -= height; + break; + } + switch (textAlign) { + case 'center': + left -= width / 2; + break; + case 'right': + left -= width; + break; + } + backdrop = { + left, + top, + width: width + labelPadding.width, + height: height + labelPadding.height, + color: optsAtIndex.backdropColor, + }; + } + items.push({ + rotation, + label, + font, + color, + strokeColor, + strokeWidth, + textOffset, + textAlign, + textBaseline, + translation: [x, y], + backdrop, + }); + } + return items; + } + _getXAxisLabelAlignment() { + const {position, ticks} = this.options; + const rotation = -toRadians(this.labelRotation); + if (rotation) { + return position === 'top' ? 'left' : 'right'; + } + let align = 'center'; + if (ticks.align === 'start') { + align = 'left'; + } else if (ticks.align === 'end') { + align = 'right'; + } + return align; + } + _getYAxisLabelAlignment(tl) { + const {position, ticks: {crossAlign, mirror, padding}} = this.options; + const labelSizes = this._getLabelSizes(); + const tickAndPadding = tl + padding; + const widest = labelSizes.widest.width; + let textAlign; + let x; + if (position === 'left') { + if (mirror) { + x = this.right + padding; + if (crossAlign === 'near') { + textAlign = 'left'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x += (widest / 2); + } else { + textAlign = 'right'; + x += widest; + } + } else { + x = this.right - tickAndPadding; + if (crossAlign === 'near') { + textAlign = 'right'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x -= (widest / 2); + } else { + textAlign = 'left'; + x = this.left; + } + } + } else if (position === 'right') { + if (mirror) { + x = this.left + padding; + if (crossAlign === 'near') { + textAlign = 'right'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x -= (widest / 2); + } else { + textAlign = 'left'; + x -= widest; + } + } else { + x = this.left + tickAndPadding; + if (crossAlign === 'near') { + textAlign = 'left'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x += widest / 2; + } else { + textAlign = 'right'; + x = this.right; + } + } + } else { + textAlign = 'right'; + } + return {textAlign, x}; + } + _computeLabelArea() { + if (this.options.ticks.mirror) { + return; + } + const chart = this.chart; + const position = this.options.position; + if (position === 'left' || position === 'right') { + return {top: 0, left: this.left, bottom: chart.height, right: this.right}; + } if (position === 'top' || position === 'bottom') { + return {top: this.top, left: 0, bottom: this.bottom, right: chart.width}; + } + } + drawBackground() { + const {ctx, options: {backgroundColor}, left, top, width, height} = this; + if (backgroundColor) { + ctx.save(); + ctx.fillStyle = backgroundColor; + ctx.fillRect(left, top, width, height); + ctx.restore(); + } + } + getLineWidthForValue(value) { + const grid = this.options.grid; + if (!this._isVisible() || !grid.display) { + return 0; + } + const ticks = this.ticks; + const index = ticks.findIndex(t => t.value === value); + if (index >= 0) { + const opts = grid.setContext(this.getContext(index)); + return opts.lineWidth; + } + return 0; + } + drawGrid(chartArea) { + const grid = this.options.grid; + const ctx = this.ctx; + const items = this._gridLineItems || (this._gridLineItems = this._computeGridLineItems(chartArea)); + let i, ilen; + const drawLine = (p1, p2, style) => { + if (!style.width || !style.color) { + return; + } + ctx.save(); + ctx.lineWidth = style.width; + ctx.strokeStyle = style.color; + ctx.setLineDash(style.borderDash || []); + ctx.lineDashOffset = style.borderDashOffset; + ctx.beginPath(); + ctx.moveTo(p1.x, p1.y); + ctx.lineTo(p2.x, p2.y); + ctx.stroke(); + ctx.restore(); + }; + if (grid.display) { + for (i = 0, ilen = items.length; i < ilen; ++i) { + const item = items[i]; + if (grid.drawOnChartArea) { + drawLine( + {x: item.x1, y: item.y1}, + {x: item.x2, y: item.y2}, + item + ); + } + if (grid.drawTicks) { + drawLine( + {x: item.tx1, y: item.ty1}, + {x: item.tx2, y: item.ty2}, + { + color: item.tickColor, + width: item.tickWidth, + borderDash: item.tickBorderDash, + borderDashOffset: item.tickBorderDashOffset + } + ); + } + } + } + } + drawBorder() { + const {chart, ctx, options: {grid}} = this; + const borderOpts = grid.setContext(this.getContext()); + const axisWidth = grid.drawBorder ? borderOpts.borderWidth : 0; + if (!axisWidth) { + return; + } + const lastLineWidth = grid.setContext(this.getContext(0)).lineWidth; + const borderValue = this._borderValue; + let x1, x2, y1, y2; + if (this.isHorizontal()) { + x1 = _alignPixel(chart, this.left, axisWidth) - axisWidth / 2; + x2 = _alignPixel(chart, this.right, lastLineWidth) + lastLineWidth / 2; + y1 = y2 = borderValue; + } else { + y1 = _alignPixel(chart, this.top, axisWidth) - axisWidth / 2; + y2 = _alignPixel(chart, this.bottom, lastLineWidth) + lastLineWidth / 2; + x1 = x2 = borderValue; + } + ctx.save(); + ctx.lineWidth = borderOpts.borderWidth; + ctx.strokeStyle = borderOpts.borderColor; + ctx.beginPath(); + ctx.moveTo(x1, y1); + ctx.lineTo(x2, y2); + ctx.stroke(); + ctx.restore(); + } + drawLabels(chartArea) { + const optionTicks = this.options.ticks; + if (!optionTicks.display) { + return; + } + const ctx = this.ctx; + const area = this._computeLabelArea(); + if (area) { + clipArea(ctx, area); + } + const items = this._labelItems || (this._labelItems = this._computeLabelItems(chartArea)); + let i, ilen; + for (i = 0, ilen = items.length; i < ilen; ++i) { + const item = items[i]; + const tickFont = item.font; + const label = item.label; + if (item.backdrop) { + ctx.fillStyle = item.backdrop.color; + ctx.fillRect(item.backdrop.left, item.backdrop.top, item.backdrop.width, item.backdrop.height); + } + let y = item.textOffset; + renderText(ctx, label, 0, y, tickFont, item); + } + if (area) { + unclipArea(ctx); + } + } + drawTitle() { + const {ctx, options: {position, title, reverse}} = this; + if (!title.display) { + return; + } + const font = toFont(title.font); + const padding = toPadding(title.padding); + const align = title.align; + let offset = font.lineHeight / 2; + if (position === 'bottom' || position === 'center' || isObject(position)) { + offset += padding.bottom; + if (isArray(title.text)) { + offset += font.lineHeight * (title.text.length - 1); + } + } else { + offset += padding.top; + } + const {titleX, titleY, maxWidth, rotation} = titleArgs(this, offset, position, align); + renderText(ctx, title.text, 0, 0, font, { + color: title.color, + maxWidth, + rotation, + textAlign: titleAlign(align, position, reverse), + textBaseline: 'middle', + translation: [titleX, titleY], + }); + } + draw(chartArea) { + if (!this._isVisible()) { + return; + } + this.drawBackground(); + this.drawGrid(chartArea); + this.drawBorder(); + this.drawTitle(); + this.drawLabels(chartArea); + } + _layers() { + const opts = this.options; + const tz = opts.ticks && opts.ticks.z || 0; + const gz = valueOrDefault(opts.grid && opts.grid.z, -1); + if (!this._isVisible() || this.draw !== Scale.prototype.draw) { + return [{ + z: tz, + draw: (chartArea) => { + this.draw(chartArea); + } + }]; + } + return [{ + z: gz, + draw: (chartArea) => { + this.drawBackground(); + this.drawGrid(chartArea); + this.drawTitle(); + } + }, { + z: gz + 1, + draw: () => { + this.drawBorder(); + } + }, { + z: tz, + draw: (chartArea) => { + this.drawLabels(chartArea); + } + }]; + } + getMatchingVisibleMetas(type) { + const metas = this.chart.getSortedVisibleDatasetMetas(); + const axisID = this.axis + 'AxisID'; + const result = []; + let i, ilen; + for (i = 0, ilen = metas.length; i < ilen; ++i) { + const meta = metas[i]; + if (meta[axisID] === this.id && (!type || meta.type === type)) { + result.push(meta); + } + } + return result; + } + _resolveTickFontOptions(index) { + const opts = this.options.ticks.setContext(this.getContext(index)); + return toFont(opts.font); + } + _maxDigits() { + const fontSize = this._resolveTickFontOptions(0).lineHeight; + return (this.isHorizontal() ? this.width : this.height) / fontSize; + } +} + +class TypedRegistry { + constructor(type, scope, override) { + this.type = type; + this.scope = scope; + this.override = override; + this.items = Object.create(null); + } + isForType(type) { + return Object.prototype.isPrototypeOf.call(this.type.prototype, type.prototype); + } + register(item) { + const proto = Object.getPrototypeOf(item); + let parentScope; + if (isIChartComponent(proto)) { + parentScope = this.register(proto); + } + const items = this.items; + const id = item.id; + const scope = this.scope + '.' + id; + if (!id) { + throw new Error('class does not have id: ' + item); + } + if (id in items) { + return scope; + } + items[id] = item; + registerDefaults(item, scope, parentScope); + if (this.override) { + defaults.override(item.id, item.overrides); + } + return scope; + } + get(id) { + return this.items[id]; + } + unregister(item) { + const items = this.items; + const id = item.id; + const scope = this.scope; + if (id in items) { + delete items[id]; + } + if (scope && id in defaults[scope]) { + delete defaults[scope][id]; + if (this.override) { + delete overrides[id]; + } + } + } +} +function registerDefaults(item, scope, parentScope) { + const itemDefaults = merge(Object.create(null), [ + parentScope ? defaults.get(parentScope) : {}, + defaults.get(scope), + item.defaults + ]); + defaults.set(scope, itemDefaults); + if (item.defaultRoutes) { + routeDefaults(scope, item.defaultRoutes); + } + if (item.descriptors) { + defaults.describe(scope, item.descriptors); + } +} +function routeDefaults(scope, routes) { + Object.keys(routes).forEach(property => { + const propertyParts = property.split('.'); + const sourceName = propertyParts.pop(); + const sourceScope = [scope].concat(propertyParts).join('.'); + const parts = routes[property].split('.'); + const targetName = parts.pop(); + const targetScope = parts.join('.'); + defaults.route(sourceScope, sourceName, targetScope, targetName); + }); +} +function isIChartComponent(proto) { + return 'id' in proto && 'defaults' in proto; +} + +class Registry { + constructor() { + this.controllers = new TypedRegistry(DatasetController, 'datasets', true); + this.elements = new TypedRegistry(Element, 'elements'); + this.plugins = new TypedRegistry(Object, 'plugins'); + this.scales = new TypedRegistry(Scale, 'scales'); + this._typedRegistries = [this.controllers, this.scales, this.elements]; + } + add(...args) { + this._each('register', args); + } + remove(...args) { + this._each('unregister', args); + } + addControllers(...args) { + this._each('register', args, this.controllers); + } + addElements(...args) { + this._each('register', args, this.elements); + } + addPlugins(...args) { + this._each('register', args, this.plugins); + } + addScales(...args) { + this._each('register', args, this.scales); + } + getController(id) { + return this._get(id, this.controllers, 'controller'); + } + getElement(id) { + return this._get(id, this.elements, 'element'); + } + getPlugin(id) { + return this._get(id, this.plugins, 'plugin'); + } + getScale(id) { + return this._get(id, this.scales, 'scale'); + } + removeControllers(...args) { + this._each('unregister', args, this.controllers); + } + removeElements(...args) { + this._each('unregister', args, this.elements); + } + removePlugins(...args) { + this._each('unregister', args, this.plugins); + } + removeScales(...args) { + this._each('unregister', args, this.scales); + } + _each(method, args, typedRegistry) { + [...args].forEach(arg => { + const reg = typedRegistry || this._getRegistryForType(arg); + if (typedRegistry || reg.isForType(arg) || (reg === this.plugins && arg.id)) { + this._exec(method, reg, arg); + } else { + each(arg, item => { + const itemReg = typedRegistry || this._getRegistryForType(item); + this._exec(method, itemReg, item); + }); + } + }); + } + _exec(method, registry, component) { + const camelMethod = _capitalize(method); + callback(component['before' + camelMethod], [], component); + registry[method](component); + callback(component['after' + camelMethod], [], component); + } + _getRegistryForType(type) { + for (let i = 0; i < this._typedRegistries.length; i++) { + const reg = this._typedRegistries[i]; + if (reg.isForType(type)) { + return reg; + } + } + return this.plugins; + } + _get(id, typedRegistry, type) { + const item = typedRegistry.get(id); + if (item === undefined) { + throw new Error('"' + id + '" is not a registered ' + type + '.'); + } + return item; + } +} +var registry = new Registry(); + +class PluginService { + constructor() { + this._init = []; + } + notify(chart, hook, args, filter) { + if (hook === 'beforeInit') { + this._init = this._createDescriptors(chart, true); + this._notify(this._init, chart, 'install'); + } + const descriptors = filter ? this._descriptors(chart).filter(filter) : this._descriptors(chart); + const result = this._notify(descriptors, chart, hook, args); + if (hook === 'afterDestroy') { + this._notify(descriptors, chart, 'stop'); + this._notify(this._init, chart, 'uninstall'); + } + return result; + } + _notify(descriptors, chart, hook, args) { + args = args || {}; + for (const descriptor of descriptors) { + const plugin = descriptor.plugin; + const method = plugin[hook]; + const params = [chart, args, descriptor.options]; + if (callback(method, params, plugin) === false && args.cancelable) { + return false; + } + } + return true; + } + invalidate() { + if (!isNullOrUndef(this._cache)) { + this._oldCache = this._cache; + this._cache = undefined; + } + } + _descriptors(chart) { + if (this._cache) { + return this._cache; + } + const descriptors = this._cache = this._createDescriptors(chart); + this._notifyStateChanges(chart); + return descriptors; + } + _createDescriptors(chart, all) { + const config = chart && chart.config; + const options = valueOrDefault(config.options && config.options.plugins, {}); + const plugins = allPlugins(config); + return options === false && !all ? [] : createDescriptors(chart, plugins, options, all); + } + _notifyStateChanges(chart) { + const previousDescriptors = this._oldCache || []; + const descriptors = this._cache; + const diff = (a, b) => a.filter(x => !b.some(y => x.plugin.id === y.plugin.id)); + this._notify(diff(previousDescriptors, descriptors), chart, 'stop'); + this._notify(diff(descriptors, previousDescriptors), chart, 'start'); + } +} +function allPlugins(config) { + const plugins = []; + const keys = Object.keys(registry.plugins.items); + for (let i = 0; i < keys.length; i++) { + plugins.push(registry.getPlugin(keys[i])); + } + const local = config.plugins || []; + for (let i = 0; i < local.length; i++) { + const plugin = local[i]; + if (plugins.indexOf(plugin) === -1) { + plugins.push(plugin); + } + } + return plugins; +} +function getOpts(options, all) { + if (!all && options === false) { + return null; + } + if (options === true) { + return {}; + } + return options; +} +function createDescriptors(chart, plugins, options, all) { + const result = []; + const context = chart.getContext(); + for (let i = 0; i < plugins.length; i++) { + const plugin = plugins[i]; + const id = plugin.id; + const opts = getOpts(options[id], all); + if (opts === null) { + continue; + } + result.push({ + plugin, + options: pluginOpts(chart.config, plugin, opts, context) + }); + } + return result; +} +function pluginOpts(config, plugin, opts, context) { + const keys = config.pluginScopeKeys(plugin); + const scopes = config.getOptionScopes(opts, keys); + return config.createResolver(scopes, context, [''], {scriptable: false, indexable: false, allKeys: true}); +} + +function getIndexAxis(type, options) { + const datasetDefaults = defaults.datasets[type] || {}; + const datasetOptions = (options.datasets || {})[type] || {}; + return datasetOptions.indexAxis || options.indexAxis || datasetDefaults.indexAxis || 'x'; +} +function getAxisFromDefaultScaleID(id, indexAxis) { + let axis = id; + if (id === '_index_') { + axis = indexAxis; + } else if (id === '_value_') { + axis = indexAxis === 'x' ? 'y' : 'x'; + } + return axis; +} +function getDefaultScaleIDFromAxis(axis, indexAxis) { + return axis === indexAxis ? '_index_' : '_value_'; +} +function axisFromPosition(position) { + if (position === 'top' || position === 'bottom') { + return 'x'; + } + if (position === 'left' || position === 'right') { + return 'y'; + } +} +function determineAxis(id, scaleOptions) { + if (id === 'x' || id === 'y') { + return id; + } + return scaleOptions.axis || axisFromPosition(scaleOptions.position) || id.charAt(0).toLowerCase(); +} +function mergeScaleConfig(config, options) { + const chartDefaults = overrides[config.type] || {scales: {}}; + const configScales = options.scales || {}; + const chartIndexAxis = getIndexAxis(config.type, options); + const firstIDs = Object.create(null); + const scales = Object.create(null); + Object.keys(configScales).forEach(id => { + const scaleConf = configScales[id]; + if (!isObject(scaleConf)) { + return console.error(`Invalid scale configuration for scale: ${id}`); + } + if (scaleConf._proxy) { + return console.warn(`Ignoring resolver passed as options for scale: ${id}`); + } + const axis = determineAxis(id, scaleConf); + const defaultId = getDefaultScaleIDFromAxis(axis, chartIndexAxis); + const defaultScaleOptions = chartDefaults.scales || {}; + firstIDs[axis] = firstIDs[axis] || id; + scales[id] = mergeIf(Object.create(null), [{axis}, scaleConf, defaultScaleOptions[axis], defaultScaleOptions[defaultId]]); + }); + config.data.datasets.forEach(dataset => { + const type = dataset.type || config.type; + const indexAxis = dataset.indexAxis || getIndexAxis(type, options); + const datasetDefaults = overrides[type] || {}; + const defaultScaleOptions = datasetDefaults.scales || {}; + Object.keys(defaultScaleOptions).forEach(defaultID => { + const axis = getAxisFromDefaultScaleID(defaultID, indexAxis); + const id = dataset[axis + 'AxisID'] || firstIDs[axis] || axis; + scales[id] = scales[id] || Object.create(null); + mergeIf(scales[id], [{axis}, configScales[id], defaultScaleOptions[defaultID]]); + }); + }); + Object.keys(scales).forEach(key => { + const scale = scales[key]; + mergeIf(scale, [defaults.scales[scale.type], defaults.scale]); + }); + return scales; +} +function initOptions(config) { + const options = config.options || (config.options = {}); + options.plugins = valueOrDefault(options.plugins, {}); + options.scales = mergeScaleConfig(config, options); +} +function initData(data) { + data = data || {}; + data.datasets = data.datasets || []; + data.labels = data.labels || []; + return data; +} +function initConfig(config) { + config = config || {}; + config.data = initData(config.data); + initOptions(config); + return config; +} +const keyCache = new Map(); +const keysCached = new Set(); +function cachedKeys(cacheKey, generate) { + let keys = keyCache.get(cacheKey); + if (!keys) { + keys = generate(); + keyCache.set(cacheKey, keys); + keysCached.add(keys); + } + return keys; +} +const addIfFound = (set, obj, key) => { + const opts = resolveObjectKey(obj, key); + if (opts !== undefined) { + set.add(opts); + } +}; +class Config { + constructor(config) { + this._config = initConfig(config); + this._scopeCache = new Map(); + this._resolverCache = new Map(); + } + get platform() { + return this._config.platform; + } + get type() { + return this._config.type; + } + set type(type) { + this._config.type = type; + } + get data() { + return this._config.data; + } + set data(data) { + this._config.data = initData(data); + } + get options() { + return this._config.options; + } + set options(options) { + this._config.options = options; + } + get plugins() { + return this._config.plugins; + } + update() { + const config = this._config; + this.clearCache(); + initOptions(config); + } + clearCache() { + this._scopeCache.clear(); + this._resolverCache.clear(); + } + datasetScopeKeys(datasetType) { + return cachedKeys(datasetType, + () => [[ + `datasets.${datasetType}`, + '' + ]]); + } + datasetAnimationScopeKeys(datasetType, transition) { + return cachedKeys(`${datasetType}.transition.${transition}`, + () => [ + [ + `datasets.${datasetType}.transitions.${transition}`, + `transitions.${transition}`, + ], + [ + `datasets.${datasetType}`, + '' + ] + ]); + } + datasetElementScopeKeys(datasetType, elementType) { + return cachedKeys(`${datasetType}-${elementType}`, + () => [[ + `datasets.${datasetType}.elements.${elementType}`, + `datasets.${datasetType}`, + `elements.${elementType}`, + '' + ]]); + } + pluginScopeKeys(plugin) { + const id = plugin.id; + const type = this.type; + return cachedKeys(`${type}-plugin-${id}`, + () => [[ + `plugins.${id}`, + ...plugin.additionalOptionScopes || [], + ]]); + } + _cachedScopes(mainScope, resetCache) { + const _scopeCache = this._scopeCache; + let cache = _scopeCache.get(mainScope); + if (!cache || resetCache) { + cache = new Map(); + _scopeCache.set(mainScope, cache); + } + return cache; + } + getOptionScopes(mainScope, keyLists, resetCache) { + const {options, type} = this; + const cache = this._cachedScopes(mainScope, resetCache); + const cached = cache.get(keyLists); + if (cached) { + return cached; + } + const scopes = new Set(); + keyLists.forEach(keys => { + if (mainScope) { + scopes.add(mainScope); + keys.forEach(key => addIfFound(scopes, mainScope, key)); + } + keys.forEach(key => addIfFound(scopes, options, key)); + keys.forEach(key => addIfFound(scopes, overrides[type] || {}, key)); + keys.forEach(key => addIfFound(scopes, defaults, key)); + keys.forEach(key => addIfFound(scopes, descriptors, key)); + }); + const array = Array.from(scopes); + if (array.length === 0) { + array.push(Object.create(null)); + } + if (keysCached.has(keyLists)) { + cache.set(keyLists, array); + } + return array; + } + chartOptionScopes() { + const {options, type} = this; + return [ + options, + overrides[type] || {}, + defaults.datasets[type] || {}, + {type}, + defaults, + descriptors + ]; + } + resolveNamedOptions(scopes, names, context, prefixes = ['']) { + const result = {$shared: true}; + const {resolver, subPrefixes} = getResolver(this._resolverCache, scopes, prefixes); + let options = resolver; + if (needContext(resolver, names)) { + result.$shared = false; + context = isFunction(context) ? context() : context; + const subResolver = this.createResolver(scopes, context, subPrefixes); + options = _attachContext(resolver, context, subResolver); + } + for (const prop of names) { + result[prop] = options[prop]; + } + return result; + } + createResolver(scopes, context, prefixes = [''], descriptorDefaults) { + const {resolver} = getResolver(this._resolverCache, scopes, prefixes); + return isObject(context) + ? _attachContext(resolver, context, undefined, descriptorDefaults) + : resolver; + } +} +function getResolver(resolverCache, scopes, prefixes) { + let cache = resolverCache.get(scopes); + if (!cache) { + cache = new Map(); + resolverCache.set(scopes, cache); + } + const cacheKey = prefixes.join(); + let cached = cache.get(cacheKey); + if (!cached) { + const resolver = _createResolver(scopes, prefixes); + cached = { + resolver, + subPrefixes: prefixes.filter(p => !p.toLowerCase().includes('hover')) + }; + cache.set(cacheKey, cached); + } + return cached; +} +const hasFunction = value => isObject(value) + && Object.getOwnPropertyNames(value).reduce((acc, key) => acc || isFunction(value[key]), false); +function needContext(proxy, names) { + const {isScriptable, isIndexable} = _descriptors(proxy); + for (const prop of names) { + const scriptable = isScriptable(prop); + const indexable = isIndexable(prop); + const value = (indexable || scriptable) && proxy[prop]; + if ((scriptable && (isFunction(value) || hasFunction(value))) + || (indexable && isArray(value))) { + return true; + } + } + return false; +} + +var version = "3.7.0"; + +const KNOWN_POSITIONS = ['top', 'bottom', 'left', 'right', 'chartArea']; +function positionIsHorizontal(position, axis) { + return position === 'top' || position === 'bottom' || (KNOWN_POSITIONS.indexOf(position) === -1 && axis === 'x'); +} +function compare2Level(l1, l2) { + return function(a, b) { + return a[l1] === b[l1] + ? a[l2] - b[l2] + : a[l1] - b[l1]; + }; +} +function onAnimationsComplete(context) { + const chart = context.chart; + const animationOptions = chart.options.animation; + chart.notifyPlugins('afterRender'); + callback(animationOptions && animationOptions.onComplete, [context], chart); +} +function onAnimationProgress(context) { + const chart = context.chart; + const animationOptions = chart.options.animation; + callback(animationOptions && animationOptions.onProgress, [context], chart); +} +function getCanvas(item) { + if (_isDomSupported() && typeof item === 'string') { + item = document.getElementById(item); + } else if (item && item.length) { + item = item[0]; + } + if (item && item.canvas) { + item = item.canvas; + } + return item; +} +const instances = {}; +const getChart = (key) => { + const canvas = getCanvas(key); + return Object.values(instances).filter((c) => c.canvas === canvas).pop(); +}; +function moveNumericKeys(obj, start, move) { + const keys = Object.keys(obj); + for (const key of keys) { + const intKey = +key; + if (intKey >= start) { + const value = obj[key]; + delete obj[key]; + if (move > 0 || intKey > start) { + obj[intKey + move] = value; + } + } + } +} +function determineLastEvent(e, lastEvent, inChartArea, isClick) { + if (!inChartArea || e.type === 'mouseout') { + return null; + } + if (isClick) { + return lastEvent; + } + return e; +} +class Chart { + constructor(item, userConfig) { + const config = this.config = new Config(userConfig); + const initialCanvas = getCanvas(item); + const existingChart = getChart(initialCanvas); + if (existingChart) { + throw new Error( + 'Canvas is already in use. Chart with ID \'' + existingChart.id + '\'' + + ' must be destroyed before the canvas can be reused.' + ); + } + const options = config.createResolver(config.chartOptionScopes(), this.getContext()); + this.platform = new (config.platform || _detectPlatform(initialCanvas))(); + this.platform.updateConfig(config); + const context = this.platform.acquireContext(initialCanvas, options.aspectRatio); + const canvas = context && context.canvas; + const height = canvas && canvas.height; + const width = canvas && canvas.width; + this.id = uid(); + this.ctx = context; + this.canvas = canvas; + this.width = width; + this.height = height; + this._options = options; + this._aspectRatio = this.aspectRatio; + this._layers = []; + this._metasets = []; + this._stacks = undefined; + this.boxes = []; + this.currentDevicePixelRatio = undefined; + this.chartArea = undefined; + this._active = []; + this._lastEvent = undefined; + this._listeners = {}; + this._responsiveListeners = undefined; + this._sortedMetasets = []; + this.scales = {}; + this._plugins = new PluginService(); + this.$proxies = {}; + this._hiddenIndices = {}; + this.attached = false; + this._animationsDisabled = undefined; + this.$context = undefined; + this._doResize = debounce(mode => this.update(mode), options.resizeDelay || 0); + this._dataChanges = []; + instances[this.id] = this; + if (!context || !canvas) { + console.error("Failed to create chart: can't acquire context from the given item"); + return; + } + animator.listen(this, 'complete', onAnimationsComplete); + animator.listen(this, 'progress', onAnimationProgress); + this._initialize(); + if (this.attached) { + this.update(); + } + } + get aspectRatio() { + const {options: {aspectRatio, maintainAspectRatio}, width, height, _aspectRatio} = this; + if (!isNullOrUndef(aspectRatio)) { + return aspectRatio; + } + if (maintainAspectRatio && _aspectRatio) { + return _aspectRatio; + } + return height ? width / height : null; + } + get data() { + return this.config.data; + } + set data(data) { + this.config.data = data; + } + get options() { + return this._options; + } + set options(options) { + this.config.options = options; + } + _initialize() { + this.notifyPlugins('beforeInit'); + if (this.options.responsive) { + this.resize(); + } else { + retinaScale(this, this.options.devicePixelRatio); + } + this.bindEvents(); + this.notifyPlugins('afterInit'); + return this; + } + clear() { + clearCanvas(this.canvas, this.ctx); + return this; + } + stop() { + animator.stop(this); + return this; + } + resize(width, height) { + if (!animator.running(this)) { + this._resize(width, height); + } else { + this._resizeBeforeDraw = {width, height}; + } + } + _resize(width, height) { + const options = this.options; + const canvas = this.canvas; + const aspectRatio = options.maintainAspectRatio && this.aspectRatio; + const newSize = this.platform.getMaximumSize(canvas, width, height, aspectRatio); + const newRatio = options.devicePixelRatio || this.platform.getDevicePixelRatio(); + const mode = this.width ? 'resize' : 'attach'; + this.width = newSize.width; + this.height = newSize.height; + this._aspectRatio = this.aspectRatio; + if (!retinaScale(this, newRatio, true)) { + return; + } + this.notifyPlugins('resize', {size: newSize}); + callback(options.onResize, [this, newSize], this); + if (this.attached) { + if (this._doResize(mode)) { + this.render(); + } + } + } + ensureScalesHaveIDs() { + const options = this.options; + const scalesOptions = options.scales || {}; + each(scalesOptions, (axisOptions, axisID) => { + axisOptions.id = axisID; + }); + } + buildOrUpdateScales() { + const options = this.options; + const scaleOpts = options.scales; + const scales = this.scales; + const updated = Object.keys(scales).reduce((obj, id) => { + obj[id] = false; + return obj; + }, {}); + let items = []; + if (scaleOpts) { + items = items.concat( + Object.keys(scaleOpts).map((id) => { + const scaleOptions = scaleOpts[id]; + const axis = determineAxis(id, scaleOptions); + const isRadial = axis === 'r'; + const isHorizontal = axis === 'x'; + return { + options: scaleOptions, + dposition: isRadial ? 'chartArea' : isHorizontal ? 'bottom' : 'left', + dtype: isRadial ? 'radialLinear' : isHorizontal ? 'category' : 'linear' + }; + }) + ); + } + each(items, (item) => { + const scaleOptions = item.options; + const id = scaleOptions.id; + const axis = determineAxis(id, scaleOptions); + const scaleType = valueOrDefault(scaleOptions.type, item.dtype); + if (scaleOptions.position === undefined || positionIsHorizontal(scaleOptions.position, axis) !== positionIsHorizontal(item.dposition)) { + scaleOptions.position = item.dposition; + } + updated[id] = true; + let scale = null; + if (id in scales && scales[id].type === scaleType) { + scale = scales[id]; + } else { + const scaleClass = registry.getScale(scaleType); + scale = new scaleClass({ + id, + type: scaleType, + ctx: this.ctx, + chart: this + }); + scales[scale.id] = scale; + } + scale.init(scaleOptions, options); + }); + each(updated, (hasUpdated, id) => { + if (!hasUpdated) { + delete scales[id]; + } + }); + each(scales, (scale) => { + layouts.configure(this, scale, scale.options); + layouts.addBox(this, scale); + }); + } + _updateMetasets() { + const metasets = this._metasets; + const numData = this.data.datasets.length; + const numMeta = metasets.length; + metasets.sort((a, b) => a.index - b.index); + if (numMeta > numData) { + for (let i = numData; i < numMeta; ++i) { + this._destroyDatasetMeta(i); + } + metasets.splice(numData, numMeta - numData); + } + this._sortedMetasets = metasets.slice(0).sort(compare2Level('order', 'index')); + } + _removeUnreferencedMetasets() { + const {_metasets: metasets, data: {datasets}} = this; + if (metasets.length > datasets.length) { + delete this._stacks; + } + metasets.forEach((meta, index) => { + if (datasets.filter(x => x === meta._dataset).length === 0) { + this._destroyDatasetMeta(index); + } + }); + } + buildOrUpdateControllers() { + const newControllers = []; + const datasets = this.data.datasets; + let i, ilen; + this._removeUnreferencedMetasets(); + for (i = 0, ilen = datasets.length; i < ilen; i++) { + const dataset = datasets[i]; + let meta = this.getDatasetMeta(i); + const type = dataset.type || this.config.type; + if (meta.type && meta.type !== type) { + this._destroyDatasetMeta(i); + meta = this.getDatasetMeta(i); + } + meta.type = type; + meta.indexAxis = dataset.indexAxis || getIndexAxis(type, this.options); + meta.order = dataset.order || 0; + meta.index = i; + meta.label = '' + dataset.label; + meta.visible = this.isDatasetVisible(i); + if (meta.controller) { + meta.controller.updateIndex(i); + meta.controller.linkScales(); + } else { + const ControllerClass = registry.getController(type); + const {datasetElementType, dataElementType} = defaults.datasets[type]; + Object.assign(ControllerClass.prototype, { + dataElementType: registry.getElement(dataElementType), + datasetElementType: datasetElementType && registry.getElement(datasetElementType) + }); + meta.controller = new ControllerClass(this, i); + newControllers.push(meta.controller); + } + } + this._updateMetasets(); + return newControllers; + } + _resetElements() { + each(this.data.datasets, (dataset, datasetIndex) => { + this.getDatasetMeta(datasetIndex).controller.reset(); + }, this); + } + reset() { + this._resetElements(); + this.notifyPlugins('reset'); + } + update(mode) { + const config = this.config; + config.update(); + const options = this._options = config.createResolver(config.chartOptionScopes(), this.getContext()); + const animsDisabled = this._animationsDisabled = !options.animation; + this._updateScales(); + this._checkEventBindings(); + this._updateHiddenIndices(); + this._plugins.invalidate(); + if (this.notifyPlugins('beforeUpdate', {mode, cancelable: true}) === false) { + return; + } + const newControllers = this.buildOrUpdateControllers(); + this.notifyPlugins('beforeElementsUpdate'); + let minPadding = 0; + for (let i = 0, ilen = this.data.datasets.length; i < ilen; i++) { + const {controller} = this.getDatasetMeta(i); + const reset = !animsDisabled && newControllers.indexOf(controller) === -1; + controller.buildOrUpdateElements(reset); + minPadding = Math.max(+controller.getMaxOverflow(), minPadding); + } + minPadding = this._minPadding = options.layout.autoPadding ? minPadding : 0; + this._updateLayout(minPadding); + if (!animsDisabled) { + each(newControllers, (controller) => { + controller.reset(); + }); + } + this._updateDatasets(mode); + this.notifyPlugins('afterUpdate', {mode}); + this._layers.sort(compare2Level('z', '_idx')); + const {_active, _lastEvent} = this; + if (_lastEvent) { + this._eventHandler(_lastEvent, true); + } else if (_active.length) { + this._updateHoverStyles(_active, _active, true); + } + this.render(); + } + _updateScales() { + each(this.scales, (scale) => { + layouts.removeBox(this, scale); + }); + this.ensureScalesHaveIDs(); + this.buildOrUpdateScales(); + } + _checkEventBindings() { + const options = this.options; + const existingEvents = new Set(Object.keys(this._listeners)); + const newEvents = new Set(options.events); + if (!setsEqual(existingEvents, newEvents) || !!this._responsiveListeners !== options.responsive) { + this.unbindEvents(); + this.bindEvents(); + } + } + _updateHiddenIndices() { + const {_hiddenIndices} = this; + const changes = this._getUniformDataChanges() || []; + for (const {method, start, count} of changes) { + const move = method === '_removeElements' ? -count : count; + moveNumericKeys(_hiddenIndices, start, move); + } + } + _getUniformDataChanges() { + const _dataChanges = this._dataChanges; + if (!_dataChanges || !_dataChanges.length) { + return; + } + this._dataChanges = []; + const datasetCount = this.data.datasets.length; + const makeSet = (idx) => new Set( + _dataChanges + .filter(c => c[0] === idx) + .map((c, i) => i + ',' + c.splice(1).join(',')) + ); + const changeSet = makeSet(0); + for (let i = 1; i < datasetCount; i++) { + if (!setsEqual(changeSet, makeSet(i))) { + return; + } + } + return Array.from(changeSet) + .map(c => c.split(',')) + .map(a => ({method: a[1], start: +a[2], count: +a[3]})); + } + _updateLayout(minPadding) { + if (this.notifyPlugins('beforeLayout', {cancelable: true}) === false) { + return; + } + layouts.update(this, this.width, this.height, minPadding); + const area = this.chartArea; + const noArea = area.width <= 0 || area.height <= 0; + this._layers = []; + each(this.boxes, (box) => { + if (noArea && box.position === 'chartArea') { + return; + } + if (box.configure) { + box.configure(); + } + this._layers.push(...box._layers()); + }, this); + this._layers.forEach((item, index) => { + item._idx = index; + }); + this.notifyPlugins('afterLayout'); + } + _updateDatasets(mode) { + if (this.notifyPlugins('beforeDatasetsUpdate', {mode, cancelable: true}) === false) { + return; + } + for (let i = 0, ilen = this.data.datasets.length; i < ilen; ++i) { + this.getDatasetMeta(i).controller.configure(); + } + for (let i = 0, ilen = this.data.datasets.length; i < ilen; ++i) { + this._updateDataset(i, isFunction(mode) ? mode({datasetIndex: i}) : mode); + } + this.notifyPlugins('afterDatasetsUpdate', {mode}); + } + _updateDataset(index, mode) { + const meta = this.getDatasetMeta(index); + const args = {meta, index, mode, cancelable: true}; + if (this.notifyPlugins('beforeDatasetUpdate', args) === false) { + return; + } + meta.controller._update(mode); + args.cancelable = false; + this.notifyPlugins('afterDatasetUpdate', args); + } + render() { + if (this.notifyPlugins('beforeRender', {cancelable: true}) === false) { + return; + } + if (animator.has(this)) { + if (this.attached && !animator.running(this)) { + animator.start(this); + } + } else { + this.draw(); + onAnimationsComplete({chart: this}); + } + } + draw() { + let i; + if (this._resizeBeforeDraw) { + const {width, height} = this._resizeBeforeDraw; + this._resize(width, height); + this._resizeBeforeDraw = null; + } + this.clear(); + if (this.width <= 0 || this.height <= 0) { + return; + } + if (this.notifyPlugins('beforeDraw', {cancelable: true}) === false) { + return; + } + const layers = this._layers; + for (i = 0; i < layers.length && layers[i].z <= 0; ++i) { + layers[i].draw(this.chartArea); + } + this._drawDatasets(); + for (; i < layers.length; ++i) { + layers[i].draw(this.chartArea); + } + this.notifyPlugins('afterDraw'); + } + _getSortedDatasetMetas(filterVisible) { + const metasets = this._sortedMetasets; + const result = []; + let i, ilen; + for (i = 0, ilen = metasets.length; i < ilen; ++i) { + const meta = metasets[i]; + if (!filterVisible || meta.visible) { + result.push(meta); + } + } + return result; + } + getSortedVisibleDatasetMetas() { + return this._getSortedDatasetMetas(true); + } + _drawDatasets() { + if (this.notifyPlugins('beforeDatasetsDraw', {cancelable: true}) === false) { + return; + } + const metasets = this.getSortedVisibleDatasetMetas(); + for (let i = metasets.length - 1; i >= 0; --i) { + this._drawDataset(metasets[i]); + } + this.notifyPlugins('afterDatasetsDraw'); + } + _drawDataset(meta) { + const ctx = this.ctx; + const clip = meta._clip; + const useClip = !clip.disabled; + const area = this.chartArea; + const args = { + meta, + index: meta.index, + cancelable: true + }; + if (this.notifyPlugins('beforeDatasetDraw', args) === false) { + return; + } + if (useClip) { + clipArea(ctx, { + left: clip.left === false ? 0 : area.left - clip.left, + right: clip.right === false ? this.width : area.right + clip.right, + top: clip.top === false ? 0 : area.top - clip.top, + bottom: clip.bottom === false ? this.height : area.bottom + clip.bottom + }); + } + meta.controller.draw(); + if (useClip) { + unclipArea(ctx); + } + args.cancelable = false; + this.notifyPlugins('afterDatasetDraw', args); + } + getElementsAtEventForMode(e, mode, options, useFinalPosition) { + const method = Interaction.modes[mode]; + if (typeof method === 'function') { + return method(this, e, options, useFinalPosition); + } + return []; + } + getDatasetMeta(datasetIndex) { + const dataset = this.data.datasets[datasetIndex]; + const metasets = this._metasets; + let meta = metasets.filter(x => x && x._dataset === dataset).pop(); + if (!meta) { + meta = { + type: null, + data: [], + dataset: null, + controller: null, + hidden: null, + xAxisID: null, + yAxisID: null, + order: dataset && dataset.order || 0, + index: datasetIndex, + _dataset: dataset, + _parsed: [], + _sorted: false + }; + metasets.push(meta); + } + return meta; + } + getContext() { + return this.$context || (this.$context = createContext(null, {chart: this, type: 'chart'})); + } + getVisibleDatasetCount() { + return this.getSortedVisibleDatasetMetas().length; + } + isDatasetVisible(datasetIndex) { + const dataset = this.data.datasets[datasetIndex]; + if (!dataset) { + return false; + } + const meta = this.getDatasetMeta(datasetIndex); + return typeof meta.hidden === 'boolean' ? !meta.hidden : !dataset.hidden; + } + setDatasetVisibility(datasetIndex, visible) { + const meta = this.getDatasetMeta(datasetIndex); + meta.hidden = !visible; + } + toggleDataVisibility(index) { + this._hiddenIndices[index] = !this._hiddenIndices[index]; + } + getDataVisibility(index) { + return !this._hiddenIndices[index]; + } + _updateVisibility(datasetIndex, dataIndex, visible) { + const mode = visible ? 'show' : 'hide'; + const meta = this.getDatasetMeta(datasetIndex); + const anims = meta.controller._resolveAnimations(undefined, mode); + if (defined(dataIndex)) { + meta.data[dataIndex].hidden = !visible; + this.update(); + } else { + this.setDatasetVisibility(datasetIndex, visible); + anims.update(meta, {visible}); + this.update((ctx) => ctx.datasetIndex === datasetIndex ? mode : undefined); + } + } + hide(datasetIndex, dataIndex) { + this._updateVisibility(datasetIndex, dataIndex, false); + } + show(datasetIndex, dataIndex) { + this._updateVisibility(datasetIndex, dataIndex, true); + } + _destroyDatasetMeta(datasetIndex) { + const meta = this._metasets[datasetIndex]; + if (meta && meta.controller) { + meta.controller._destroy(); + } + delete this._metasets[datasetIndex]; + } + _stop() { + let i, ilen; + this.stop(); + animator.remove(this); + for (i = 0, ilen = this.data.datasets.length; i < ilen; ++i) { + this._destroyDatasetMeta(i); + } + } + destroy() { + this.notifyPlugins('beforeDestroy'); + const {canvas, ctx} = this; + this._stop(); + this.config.clearCache(); + if (canvas) { + this.unbindEvents(); + clearCanvas(canvas, ctx); + this.platform.releaseContext(ctx); + this.canvas = null; + this.ctx = null; + } + this.notifyPlugins('destroy'); + delete instances[this.id]; + this.notifyPlugins('afterDestroy'); + } + toBase64Image(...args) { + return this.canvas.toDataURL(...args); + } + bindEvents() { + this.bindUserEvents(); + if (this.options.responsive) { + this.bindResponsiveEvents(); + } else { + this.attached = true; + } + } + bindUserEvents() { + const listeners = this._listeners; + const platform = this.platform; + const _add = (type, listener) => { + platform.addEventListener(this, type, listener); + listeners[type] = listener; + }; + const listener = (e, x, y) => { + e.offsetX = x; + e.offsetY = y; + this._eventHandler(e); + }; + each(this.options.events, (type) => _add(type, listener)); + } + bindResponsiveEvents() { + if (!this._responsiveListeners) { + this._responsiveListeners = {}; + } + const listeners = this._responsiveListeners; + const platform = this.platform; + const _add = (type, listener) => { + platform.addEventListener(this, type, listener); + listeners[type] = listener; + }; + const _remove = (type, listener) => { + if (listeners[type]) { + platform.removeEventListener(this, type, listener); + delete listeners[type]; + } + }; + const listener = (width, height) => { + if (this.canvas) { + this.resize(width, height); + } + }; + let detached; + const attached = () => { + _remove('attach', attached); + this.attached = true; + this.resize(); + _add('resize', listener); + _add('detach', detached); + }; + detached = () => { + this.attached = false; + _remove('resize', listener); + this._stop(); + this._resize(0, 0); + _add('attach', attached); + }; + if (platform.isAttached(this.canvas)) { + attached(); + } else { + detached(); + } + } + unbindEvents() { + each(this._listeners, (listener, type) => { + this.platform.removeEventListener(this, type, listener); + }); + this._listeners = {}; + each(this._responsiveListeners, (listener, type) => { + this.platform.removeEventListener(this, type, listener); + }); + this._responsiveListeners = undefined; + } + updateHoverStyle(items, mode, enabled) { + const prefix = enabled ? 'set' : 'remove'; + let meta, item, i, ilen; + if (mode === 'dataset') { + meta = this.getDatasetMeta(items[0].datasetIndex); + meta.controller['_' + prefix + 'DatasetHoverStyle'](); + } + for (i = 0, ilen = items.length; i < ilen; ++i) { + item = items[i]; + const controller = item && this.getDatasetMeta(item.datasetIndex).controller; + if (controller) { + controller[prefix + 'HoverStyle'](item.element, item.datasetIndex, item.index); + } + } + } + getActiveElements() { + return this._active || []; + } + setActiveElements(activeElements) { + const lastActive = this._active || []; + const active = activeElements.map(({datasetIndex, index}) => { + const meta = this.getDatasetMeta(datasetIndex); + if (!meta) { + throw new Error('No dataset found at index ' + datasetIndex); + } + return { + datasetIndex, + element: meta.data[index], + index, + }; + }); + const changed = !_elementsEqual(active, lastActive); + if (changed) { + this._active = active; + this._lastEvent = null; + this._updateHoverStyles(active, lastActive); + } + } + notifyPlugins(hook, args, filter) { + return this._plugins.notify(this, hook, args, filter); + } + _updateHoverStyles(active, lastActive, replay) { + const hoverOptions = this.options.hover; + const diff = (a, b) => a.filter(x => !b.some(y => x.datasetIndex === y.datasetIndex && x.index === y.index)); + const deactivated = diff(lastActive, active); + const activated = replay ? active : diff(active, lastActive); + if (deactivated.length) { + this.updateHoverStyle(deactivated, hoverOptions.mode, false); + } + if (activated.length && hoverOptions.mode) { + this.updateHoverStyle(activated, hoverOptions.mode, true); + } + } + _eventHandler(e, replay) { + const args = { + event: e, + replay, + cancelable: true, + inChartArea: _isPointInArea(e, this.chartArea, this._minPadding) + }; + const eventFilter = (plugin) => (plugin.options.events || this.options.events).includes(e.native.type); + if (this.notifyPlugins('beforeEvent', args, eventFilter) === false) { + return; + } + const changed = this._handleEvent(e, replay, args.inChartArea); + args.cancelable = false; + this.notifyPlugins('afterEvent', args, eventFilter); + if (changed || args.changed) { + this.render(); + } + return this; + } + _handleEvent(e, replay, inChartArea) { + const {_active: lastActive = [], options} = this; + const useFinalPosition = replay; + const active = this._getActiveElements(e, lastActive, inChartArea, useFinalPosition); + const isClick = _isClickEvent(e); + const lastEvent = determineLastEvent(e, this._lastEvent, inChartArea, isClick); + if (inChartArea) { + this._lastEvent = null; + callback(options.onHover, [e, active, this], this); + if (isClick) { + callback(options.onClick, [e, active, this], this); + } + } + const changed = !_elementsEqual(active, lastActive); + if (changed || replay) { + this._active = active; + this._updateHoverStyles(active, lastActive, replay); + } + this._lastEvent = lastEvent; + return changed; + } + _getActiveElements(e, lastActive, inChartArea, useFinalPosition) { + if (e.type === 'mouseout') { + return []; + } + if (!inChartArea) { + return lastActive; + } + const hoverOptions = this.options.hover; + return this.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions, useFinalPosition); + } +} +const invalidatePlugins = () => each(Chart.instances, (chart) => chart._plugins.invalidate()); +const enumerable = true; +Object.defineProperties(Chart, { + defaults: { + enumerable, + value: defaults + }, + instances: { + enumerable, + value: instances + }, + overrides: { + enumerable, + value: overrides + }, + registry: { + enumerable, + value: registry + }, + version: { + enumerable, + value: version + }, + getChart: { + enumerable, + value: getChart + }, + register: { + enumerable, + value: (...items) => { + registry.add(...items); + invalidatePlugins(); + } + }, + unregister: { + enumerable, + value: (...items) => { + registry.remove(...items); + invalidatePlugins(); + } + } +}); + +function abstract() { + throw new Error('This method is not implemented: Check that a complete date adapter is provided.'); +} +class DateAdapter { + constructor(options) { + this.options = options || {}; + } + formats() { + return abstract(); + } + parse(value, format) { + return abstract(); + } + format(timestamp, format) { + return abstract(); + } + add(timestamp, amount, unit) { + return abstract(); + } + diff(a, b, unit) { + return abstract(); + } + startOf(timestamp, unit, weekday) { + return abstract(); + } + endOf(timestamp, unit) { + return abstract(); + } +} +DateAdapter.override = function(members) { + Object.assign(DateAdapter.prototype, members); +}; +var _adapters = { + _date: DateAdapter +}; + +function getAllScaleValues(scale, type) { + if (!scale._cache.$bar) { + const visibleMetas = scale.getMatchingVisibleMetas(type); + let values = []; + for (let i = 0, ilen = visibleMetas.length; i < ilen; i++) { + values = values.concat(visibleMetas[i].controller.getAllParsedValues(scale)); + } + scale._cache.$bar = _arrayUnique(values.sort((a, b) => a - b)); + } + return scale._cache.$bar; +} +function computeMinSampleSize(meta) { + const scale = meta.iScale; + const values = getAllScaleValues(scale, meta.type); + let min = scale._length; + let i, ilen, curr, prev; + const updateMinAndPrev = () => { + if (curr === 32767 || curr === -32768) { + return; + } + if (defined(prev)) { + min = Math.min(min, Math.abs(curr - prev) || min); + } + prev = curr; + }; + for (i = 0, ilen = values.length; i < ilen; ++i) { + curr = scale.getPixelForValue(values[i]); + updateMinAndPrev(); + } + prev = undefined; + for (i = 0, ilen = scale.ticks.length; i < ilen; ++i) { + curr = scale.getPixelForTick(i); + updateMinAndPrev(); + } + return min; +} +function computeFitCategoryTraits(index, ruler, options, stackCount) { + const thickness = options.barThickness; + let size, ratio; + if (isNullOrUndef(thickness)) { + size = ruler.min * options.categoryPercentage; + ratio = options.barPercentage; + } else { + size = thickness * stackCount; + ratio = 1; + } + return { + chunk: size / stackCount, + ratio, + start: ruler.pixels[index] - (size / 2) + }; +} +function computeFlexCategoryTraits(index, ruler, options, stackCount) { + const pixels = ruler.pixels; + const curr = pixels[index]; + let prev = index > 0 ? pixels[index - 1] : null; + let next = index < pixels.length - 1 ? pixels[index + 1] : null; + const percent = options.categoryPercentage; + if (prev === null) { + prev = curr - (next === null ? ruler.end - ruler.start : next - curr); + } + if (next === null) { + next = curr + curr - prev; + } + const start = curr - (curr - Math.min(prev, next)) / 2 * percent; + const size = Math.abs(next - prev) / 2 * percent; + return { + chunk: size / stackCount, + ratio: options.barPercentage, + start + }; +} +function parseFloatBar(entry, item, vScale, i) { + const startValue = vScale.parse(entry[0], i); + const endValue = vScale.parse(entry[1], i); + const min = Math.min(startValue, endValue); + const max = Math.max(startValue, endValue); + let barStart = min; + let barEnd = max; + if (Math.abs(min) > Math.abs(max)) { + barStart = max; + barEnd = min; + } + item[vScale.axis] = barEnd; + item._custom = { + barStart, + barEnd, + start: startValue, + end: endValue, + min, + max + }; +} +function parseValue(entry, item, vScale, i) { + if (isArray(entry)) { + parseFloatBar(entry, item, vScale, i); + } else { + item[vScale.axis] = vScale.parse(entry, i); + } + return item; +} +function parseArrayOrPrimitive(meta, data, start, count) { + const iScale = meta.iScale; + const vScale = meta.vScale; + const labels = iScale.getLabels(); + const singleScale = iScale === vScale; + const parsed = []; + let i, ilen, item, entry; + for (i = start, ilen = start + count; i < ilen; ++i) { + entry = data[i]; + item = {}; + item[iScale.axis] = singleScale || iScale.parse(labels[i], i); + parsed.push(parseValue(entry, item, vScale, i)); + } + return parsed; +} +function isFloatBar(custom) { + return custom && custom.barStart !== undefined && custom.barEnd !== undefined; +} +function barSign(size, vScale, actualBase) { + if (size !== 0) { + return sign(size); + } + return (vScale.isHorizontal() ? 1 : -1) * (vScale.min >= actualBase ? 1 : -1); +} +function borderProps(properties) { + let reverse, start, end, top, bottom; + if (properties.horizontal) { + reverse = properties.base > properties.x; + start = 'left'; + end = 'right'; + } else { + reverse = properties.base < properties.y; + start = 'bottom'; + end = 'top'; + } + if (reverse) { + top = 'end'; + bottom = 'start'; + } else { + top = 'start'; + bottom = 'end'; + } + return {start, end, reverse, top, bottom}; +} +function setBorderSkipped(properties, options, stack, index) { + let edge = options.borderSkipped; + const res = {}; + if (!edge) { + properties.borderSkipped = res; + return; + } + const {start, end, reverse, top, bottom} = borderProps(properties); + if (edge === 'middle' && stack) { + properties.enableBorderRadius = true; + if ((stack._top || 0) === index) { + edge = top; + } else if ((stack._bottom || 0) === index) { + edge = bottom; + } else { + res[parseEdge(bottom, start, end, reverse)] = true; + edge = top; + } + } + res[parseEdge(edge, start, end, reverse)] = true; + properties.borderSkipped = res; +} +function parseEdge(edge, a, b, reverse) { + if (reverse) { + edge = swap(edge, a, b); + edge = startEnd(edge, b, a); + } else { + edge = startEnd(edge, a, b); + } + return edge; +} +function swap(orig, v1, v2) { + return orig === v1 ? v2 : orig === v2 ? v1 : orig; +} +function startEnd(v, start, end) { + return v === 'start' ? start : v === 'end' ? end : v; +} +function setInflateAmount(properties, {inflateAmount}, ratio) { + properties.inflateAmount = inflateAmount === 'auto' + ? ratio === 1 ? 0.33 : 0 + : inflateAmount; +} +class BarController extends DatasetController { + parsePrimitiveData(meta, data, start, count) { + return parseArrayOrPrimitive(meta, data, start, count); + } + parseArrayData(meta, data, start, count) { + return parseArrayOrPrimitive(meta, data, start, count); + } + parseObjectData(meta, data, start, count) { + const {iScale, vScale} = meta; + const {xAxisKey = 'x', yAxisKey = 'y'} = this._parsing; + const iAxisKey = iScale.axis === 'x' ? xAxisKey : yAxisKey; + const vAxisKey = vScale.axis === 'x' ? xAxisKey : yAxisKey; + const parsed = []; + let i, ilen, item, obj; + for (i = start, ilen = start + count; i < ilen; ++i) { + obj = data[i]; + item = {}; + item[iScale.axis] = iScale.parse(resolveObjectKey(obj, iAxisKey), i); + parsed.push(parseValue(resolveObjectKey(obj, vAxisKey), item, vScale, i)); + } + return parsed; + } + updateRangeFromParsed(range, scale, parsed, stack) { + super.updateRangeFromParsed(range, scale, parsed, stack); + const custom = parsed._custom; + if (custom && scale === this._cachedMeta.vScale) { + range.min = Math.min(range.min, custom.min); + range.max = Math.max(range.max, custom.max); + } + } + getMaxOverflow() { + return 0; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const {iScale, vScale} = meta; + const parsed = this.getParsed(index); + const custom = parsed._custom; + const value = isFloatBar(custom) + ? '[' + custom.start + ', ' + custom.end + ']' + : '' + vScale.getLabelForValue(parsed[vScale.axis]); + return { + label: '' + iScale.getLabelForValue(parsed[iScale.axis]), + value + }; + } + initialize() { + this.enableOptionSharing = true; + super.initialize(); + const meta = this._cachedMeta; + meta.stack = this.getDataset().stack; + } + update(mode) { + const meta = this._cachedMeta; + this.updateElements(meta.data, 0, meta.data.length, mode); + } + updateElements(bars, start, count, mode) { + const reset = mode === 'reset'; + const {index, _cachedMeta: {vScale}} = this; + const base = vScale.getBasePixel(); + const horizontal = vScale.isHorizontal(); + const ruler = this._getRuler(); + const firstOpts = this.resolveDataElementOptions(start, mode); + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions); + this.updateSharedOptions(sharedOptions, mode, firstOpts); + for (let i = start; i < start + count; i++) { + const parsed = this.getParsed(i); + const vpixels = reset || isNullOrUndef(parsed[vScale.axis]) ? {base, head: base} : this._calculateBarValuePixels(i); + const ipixels = this._calculateBarIndexPixels(i, ruler); + const stack = (parsed._stacks || {})[vScale.axis]; + const properties = { + horizontal, + base: vpixels.base, + enableBorderRadius: !stack || isFloatBar(parsed._custom) || (index === stack._top || index === stack._bottom), + x: horizontal ? vpixels.head : ipixels.center, + y: horizontal ? ipixels.center : vpixels.head, + height: horizontal ? ipixels.size : Math.abs(vpixels.size), + width: horizontal ? Math.abs(vpixels.size) : ipixels.size + }; + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, bars[i].active ? 'active' : mode); + } + const options = properties.options || bars[i].options; + setBorderSkipped(properties, options, stack, index); + setInflateAmount(properties, options, ruler.ratio); + this.updateElement(bars[i], i, properties, mode); + } + } + _getStacks(last, dataIndex) { + const meta = this._cachedMeta; + const iScale = meta.iScale; + const metasets = iScale.getMatchingVisibleMetas(this._type); + const stacked = iScale.options.stacked; + const ilen = metasets.length; + const stacks = []; + let i, item; + for (i = 0; i < ilen; ++i) { + item = metasets[i]; + if (!item.controller.options.grouped) { + continue; + } + if (typeof dataIndex !== 'undefined') { + const val = item.controller.getParsed(dataIndex)[ + item.controller._cachedMeta.vScale.axis + ]; + if (isNullOrUndef(val) || isNaN(val)) { + continue; + } + } + if (stacked === false || stacks.indexOf(item.stack) === -1 || + (stacked === undefined && item.stack === undefined)) { + stacks.push(item.stack); + } + if (item.index === last) { + break; + } + } + if (!stacks.length) { + stacks.push(undefined); + } + return stacks; + } + _getStackCount(index) { + return this._getStacks(undefined, index).length; + } + _getStackIndex(datasetIndex, name, dataIndex) { + const stacks = this._getStacks(datasetIndex, dataIndex); + const index = (name !== undefined) + ? stacks.indexOf(name) + : -1; + return (index === -1) + ? stacks.length - 1 + : index; + } + _getRuler() { + const opts = this.options; + const meta = this._cachedMeta; + const iScale = meta.iScale; + const pixels = []; + let i, ilen; + for (i = 0, ilen = meta.data.length; i < ilen; ++i) { + pixels.push(iScale.getPixelForValue(this.getParsed(i)[iScale.axis], i)); + } + const barThickness = opts.barThickness; + const min = barThickness || computeMinSampleSize(meta); + return { + min, + pixels, + start: iScale._startPixel, + end: iScale._endPixel, + stackCount: this._getStackCount(), + scale: iScale, + grouped: opts.grouped, + ratio: barThickness ? 1 : opts.categoryPercentage * opts.barPercentage + }; + } + _calculateBarValuePixels(index) { + const {_cachedMeta: {vScale, _stacked}, options: {base: baseValue, minBarLength}} = this; + const actualBase = baseValue || 0; + const parsed = this.getParsed(index); + const custom = parsed._custom; + const floating = isFloatBar(custom); + let value = parsed[vScale.axis]; + let start = 0; + let length = _stacked ? this.applyStack(vScale, parsed, _stacked) : value; + let head, size; + if (length !== value) { + start = length - value; + length = value; + } + if (floating) { + value = custom.barStart; + length = custom.barEnd - custom.barStart; + if (value !== 0 && sign(value) !== sign(custom.barEnd)) { + start = 0; + } + start += value; + } + const startValue = !isNullOrUndef(baseValue) && !floating ? baseValue : start; + let base = vScale.getPixelForValue(startValue); + if (this.chart.getDataVisibility(index)) { + head = vScale.getPixelForValue(start + length); + } else { + head = base; + } + size = head - base; + if (Math.abs(size) < minBarLength) { + size = barSign(size, vScale, actualBase) * minBarLength; + if (value === actualBase) { + base -= size / 2; + } + head = base + size; + } + if (base === vScale.getPixelForValue(actualBase)) { + const halfGrid = sign(size) * vScale.getLineWidthForValue(actualBase) / 2; + base += halfGrid; + size -= halfGrid; + } + return { + size, + base, + head, + center: head + size / 2 + }; + } + _calculateBarIndexPixels(index, ruler) { + const scale = ruler.scale; + const options = this.options; + const skipNull = options.skipNull; + const maxBarThickness = valueOrDefault(options.maxBarThickness, Infinity); + let center, size; + if (ruler.grouped) { + const stackCount = skipNull ? this._getStackCount(index) : ruler.stackCount; + const range = options.barThickness === 'flex' + ? computeFlexCategoryTraits(index, ruler, options, stackCount) + : computeFitCategoryTraits(index, ruler, options, stackCount); + const stackIndex = this._getStackIndex(this.index, this._cachedMeta.stack, skipNull ? index : undefined); + center = range.start + (range.chunk * stackIndex) + (range.chunk / 2); + size = Math.min(maxBarThickness, range.chunk * range.ratio); + } else { + center = scale.getPixelForValue(this.getParsed(index)[scale.axis], index); + size = Math.min(maxBarThickness, ruler.min * ruler.ratio); + } + return { + base: center - size / 2, + head: center + size / 2, + center, + size + }; + } + draw() { + const meta = this._cachedMeta; + const vScale = meta.vScale; + const rects = meta.data; + const ilen = rects.length; + let i = 0; + for (; i < ilen; ++i) { + if (this.getParsed(i)[vScale.axis] !== null) { + rects[i].draw(this._ctx); + } + } + } +} +BarController.id = 'bar'; +BarController.defaults = { + datasetElementType: false, + dataElementType: 'bar', + categoryPercentage: 0.8, + barPercentage: 0.9, + grouped: true, + animations: { + numbers: { + type: 'number', + properties: ['x', 'y', 'base', 'width', 'height'] + } + } +}; +BarController.overrides = { + scales: { + _index_: { + type: 'category', + offset: true, + grid: { + offset: true + } + }, + _value_: { + type: 'linear', + beginAtZero: true, + } + } +}; + +class BubbleController extends DatasetController { + initialize() { + this.enableOptionSharing = true; + super.initialize(); + } + parsePrimitiveData(meta, data, start, count) { + const parsed = super.parsePrimitiveData(meta, data, start, count); + for (let i = 0; i < parsed.length; i++) { + parsed[i]._custom = this.resolveDataElementOptions(i + start).radius; + } + return parsed; + } + parseArrayData(meta, data, start, count) { + const parsed = super.parseArrayData(meta, data, start, count); + for (let i = 0; i < parsed.length; i++) { + const item = data[start + i]; + parsed[i]._custom = valueOrDefault(item[2], this.resolveDataElementOptions(i + start).radius); + } + return parsed; + } + parseObjectData(meta, data, start, count) { + const parsed = super.parseObjectData(meta, data, start, count); + for (let i = 0; i < parsed.length; i++) { + const item = data[start + i]; + parsed[i]._custom = valueOrDefault(item && item.r && +item.r, this.resolveDataElementOptions(i + start).radius); + } + return parsed; + } + getMaxOverflow() { + const data = this._cachedMeta.data; + let max = 0; + for (let i = data.length - 1; i >= 0; --i) { + max = Math.max(max, data[i].size(this.resolveDataElementOptions(i)) / 2); + } + return max > 0 && max; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const {xScale, yScale} = meta; + const parsed = this.getParsed(index); + const x = xScale.getLabelForValue(parsed.x); + const y = yScale.getLabelForValue(parsed.y); + const r = parsed._custom; + return { + label: meta.label, + value: '(' + x + ', ' + y + (r ? ', ' + r : '') + ')' + }; + } + update(mode) { + const points = this._cachedMeta.data; + this.updateElements(points, 0, points.length, mode); + } + updateElements(points, start, count, mode) { + const reset = mode === 'reset'; + const {iScale, vScale} = this._cachedMeta; + const firstOpts = this.resolveDataElementOptions(start, mode); + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions); + const iAxis = iScale.axis; + const vAxis = vScale.axis; + for (let i = start; i < start + count; i++) { + const point = points[i]; + const parsed = !reset && this.getParsed(i); + const properties = {}; + const iPixel = properties[iAxis] = reset ? iScale.getPixelForDecimal(0.5) : iScale.getPixelForValue(parsed[iAxis]); + const vPixel = properties[vAxis] = reset ? vScale.getBasePixel() : vScale.getPixelForValue(parsed[vAxis]); + properties.skip = isNaN(iPixel) || isNaN(vPixel); + if (includeOptions) { + properties.options = this.resolveDataElementOptions(i, point.active ? 'active' : mode); + if (reset) { + properties.options.radius = 0; + } + } + this.updateElement(point, i, properties, mode); + } + this.updateSharedOptions(sharedOptions, mode, firstOpts); + } + resolveDataElementOptions(index, mode) { + const parsed = this.getParsed(index); + let values = super.resolveDataElementOptions(index, mode); + if (values.$shared) { + values = Object.assign({}, values, {$shared: false}); + } + const radius = values.radius; + if (mode !== 'active') { + values.radius = 0; + } + values.radius += valueOrDefault(parsed && parsed._custom, radius); + return values; + } +} +BubbleController.id = 'bubble'; +BubbleController.defaults = { + datasetElementType: false, + dataElementType: 'point', + animations: { + numbers: { + type: 'number', + properties: ['x', 'y', 'borderWidth', 'radius'] + } + } +}; +BubbleController.overrides = { + scales: { + x: { + type: 'linear' + }, + y: { + type: 'linear' + } + }, + plugins: { + tooltip: { + callbacks: { + title() { + return ''; + } + } + } + } +}; + +function getRatioAndOffset(rotation, circumference, cutout) { + let ratioX = 1; + let ratioY = 1; + let offsetX = 0; + let offsetY = 0; + if (circumference < TAU) { + const startAngle = rotation; + const endAngle = startAngle + circumference; + const startX = Math.cos(startAngle); + const startY = Math.sin(startAngle); + const endX = Math.cos(endAngle); + const endY = Math.sin(endAngle); + const calcMax = (angle, a, b) => _angleBetween(angle, startAngle, endAngle, true) ? 1 : Math.max(a, a * cutout, b, b * cutout); + const calcMin = (angle, a, b) => _angleBetween(angle, startAngle, endAngle, true) ? -1 : Math.min(a, a * cutout, b, b * cutout); + const maxX = calcMax(0, startX, endX); + const maxY = calcMax(HALF_PI, startY, endY); + const minX = calcMin(PI, startX, endX); + const minY = calcMin(PI + HALF_PI, startY, endY); + ratioX = (maxX - minX) / 2; + ratioY = (maxY - minY) / 2; + offsetX = -(maxX + minX) / 2; + offsetY = -(maxY + minY) / 2; + } + return {ratioX, ratioY, offsetX, offsetY}; +} +class DoughnutController extends DatasetController { + constructor(chart, datasetIndex) { + super(chart, datasetIndex); + this.enableOptionSharing = true; + this.innerRadius = undefined; + this.outerRadius = undefined; + this.offsetX = undefined; + this.offsetY = undefined; + } + linkScales() {} + parse(start, count) { + const data = this.getDataset().data; + const meta = this._cachedMeta; + if (this._parsing === false) { + meta._parsed = data; + } else { + let getter = (i) => +data[i]; + if (isObject(data[start])) { + const {key = 'value'} = this._parsing; + getter = (i) => +resolveObjectKey(data[i], key); + } + let i, ilen; + for (i = start, ilen = start + count; i < ilen; ++i) { + meta._parsed[i] = getter(i); + } + } + } + _getRotation() { + return toRadians(this.options.rotation - 90); + } + _getCircumference() { + return toRadians(this.options.circumference); + } + _getRotationExtents() { + let min = TAU; + let max = -TAU; + for (let i = 0; i < this.chart.data.datasets.length; ++i) { + if (this.chart.isDatasetVisible(i)) { + const controller = this.chart.getDatasetMeta(i).controller; + const rotation = controller._getRotation(); + const circumference = controller._getCircumference(); + min = Math.min(min, rotation); + max = Math.max(max, rotation + circumference); + } + } + return { + rotation: min, + circumference: max - min, + }; + } + update(mode) { + const chart = this.chart; + const {chartArea} = chart; + const meta = this._cachedMeta; + const arcs = meta.data; + const spacing = this.getMaxBorderWidth() + this.getMaxOffset(arcs) + this.options.spacing; + const maxSize = Math.max((Math.min(chartArea.width, chartArea.height) - spacing) / 2, 0); + const cutout = Math.min(toPercentage(this.options.cutout, maxSize), 1); + const chartWeight = this._getRingWeight(this.index); + const {circumference, rotation} = this._getRotationExtents(); + const {ratioX, ratioY, offsetX, offsetY} = getRatioAndOffset(rotation, circumference, cutout); + const maxWidth = (chartArea.width - spacing) / ratioX; + const maxHeight = (chartArea.height - spacing) / ratioY; + const maxRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0); + const outerRadius = toDimension(this.options.radius, maxRadius); + const innerRadius = Math.max(outerRadius * cutout, 0); + const radiusLength = (outerRadius - innerRadius) / this._getVisibleDatasetWeightTotal(); + this.offsetX = offsetX * outerRadius; + this.offsetY = offsetY * outerRadius; + meta.total = this.calculateTotal(); + this.outerRadius = outerRadius - radiusLength * this._getRingWeightOffset(this.index); + this.innerRadius = Math.max(this.outerRadius - radiusLength * chartWeight, 0); + this.updateElements(arcs, 0, arcs.length, mode); + } + _circumference(i, reset) { + const opts = this.options; + const meta = this._cachedMeta; + const circumference = this._getCircumference(); + if ((reset && opts.animation.animateRotate) || !this.chart.getDataVisibility(i) || meta._parsed[i] === null || meta.data[i].hidden) { + return 0; + } + return this.calculateCircumference(meta._parsed[i] * circumference / TAU); + } + updateElements(arcs, start, count, mode) { + const reset = mode === 'reset'; + const chart = this.chart; + const chartArea = chart.chartArea; + const opts = chart.options; + const animationOpts = opts.animation; + const centerX = (chartArea.left + chartArea.right) / 2; + const centerY = (chartArea.top + chartArea.bottom) / 2; + const animateScale = reset && animationOpts.animateScale; + const innerRadius = animateScale ? 0 : this.innerRadius; + const outerRadius = animateScale ? 0 : this.outerRadius; + const firstOpts = this.resolveDataElementOptions(start, mode); + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions); + let startAngle = this._getRotation(); + let i; + for (i = 0; i < start; ++i) { + startAngle += this._circumference(i, reset); + } + for (i = start; i < start + count; ++i) { + const circumference = this._circumference(i, reset); + const arc = arcs[i]; + const properties = { + x: centerX + this.offsetX, + y: centerY + this.offsetY, + startAngle, + endAngle: startAngle + circumference, + circumference, + outerRadius, + innerRadius + }; + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, arc.active ? 'active' : mode); + } + startAngle += circumference; + this.updateElement(arc, i, properties, mode); + } + this.updateSharedOptions(sharedOptions, mode, firstOpts); + } + calculateTotal() { + const meta = this._cachedMeta; + const metaData = meta.data; + let total = 0; + let i; + for (i = 0; i < metaData.length; i++) { + const value = meta._parsed[i]; + if (value !== null && !isNaN(value) && this.chart.getDataVisibility(i) && !metaData[i].hidden) { + total += Math.abs(value); + } + } + return total; + } + calculateCircumference(value) { + const total = this._cachedMeta.total; + if (total > 0 && !isNaN(value)) { + return TAU * (Math.abs(value) / total); + } + return 0; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const chart = this.chart; + const labels = chart.data.labels || []; + const value = formatNumber(meta._parsed[index], chart.options.locale); + return { + label: labels[index] || '', + value, + }; + } + getMaxBorderWidth(arcs) { + let max = 0; + const chart = this.chart; + let i, ilen, meta, controller, options; + if (!arcs) { + for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) { + if (chart.isDatasetVisible(i)) { + meta = chart.getDatasetMeta(i); + arcs = meta.data; + controller = meta.controller; + break; + } + } + } + if (!arcs) { + return 0; + } + for (i = 0, ilen = arcs.length; i < ilen; ++i) { + options = controller.resolveDataElementOptions(i); + if (options.borderAlign !== 'inner') { + max = Math.max(max, options.borderWidth || 0, options.hoverBorderWidth || 0); + } + } + return max; + } + getMaxOffset(arcs) { + let max = 0; + for (let i = 0, ilen = arcs.length; i < ilen; ++i) { + const options = this.resolveDataElementOptions(i); + max = Math.max(max, options.offset || 0, options.hoverOffset || 0); + } + return max; + } + _getRingWeightOffset(datasetIndex) { + let ringWeightOffset = 0; + for (let i = 0; i < datasetIndex; ++i) { + if (this.chart.isDatasetVisible(i)) { + ringWeightOffset += this._getRingWeight(i); + } + } + return ringWeightOffset; + } + _getRingWeight(datasetIndex) { + return Math.max(valueOrDefault(this.chart.data.datasets[datasetIndex].weight, 1), 0); + } + _getVisibleDatasetWeightTotal() { + return this._getRingWeightOffset(this.chart.data.datasets.length) || 1; + } +} +DoughnutController.id = 'doughnut'; +DoughnutController.defaults = { + datasetElementType: false, + dataElementType: 'arc', + animation: { + animateRotate: true, + animateScale: false + }, + animations: { + numbers: { + type: 'number', + properties: ['circumference', 'endAngle', 'innerRadius', 'outerRadius', 'startAngle', 'x', 'y', 'offset', 'borderWidth', 'spacing'] + }, + }, + cutout: '50%', + rotation: 0, + circumference: 360, + radius: '100%', + spacing: 0, + indexAxis: 'r', +}; +DoughnutController.descriptors = { + _scriptable: (name) => name !== 'spacing', + _indexable: (name) => name !== 'spacing', +}; +DoughnutController.overrides = { + aspectRatio: 1, + plugins: { + legend: { + labels: { + generateLabels(chart) { + const data = chart.data; + if (data.labels.length && data.datasets.length) { + const {labels: {pointStyle}} = chart.legend.options; + return data.labels.map((label, i) => { + const meta = chart.getDatasetMeta(0); + const style = meta.controller.getStyle(i); + return { + text: label, + fillStyle: style.backgroundColor, + strokeStyle: style.borderColor, + lineWidth: style.borderWidth, + pointStyle: pointStyle, + hidden: !chart.getDataVisibility(i), + index: i + }; + }); + } + return []; + } + }, + onClick(e, legendItem, legend) { + legend.chart.toggleDataVisibility(legendItem.index); + legend.chart.update(); + } + }, + tooltip: { + callbacks: { + title() { + return ''; + }, + label(tooltipItem) { + let dataLabel = tooltipItem.label; + const value = ': ' + tooltipItem.formattedValue; + if (isArray(dataLabel)) { + dataLabel = dataLabel.slice(); + dataLabel[0] += value; + } else { + dataLabel += value; + } + return dataLabel; + } + } + } + } +}; + +class LineController extends DatasetController { + initialize() { + this.enableOptionSharing = true; + super.initialize(); + } + update(mode) { + const meta = this._cachedMeta; + const {dataset: line, data: points = [], _dataset} = meta; + const animationsDisabled = this.chart._animationsDisabled; + let {start, count} = getStartAndCountOfVisiblePoints(meta, points, animationsDisabled); + this._drawStart = start; + this._drawCount = count; + if (scaleRangesChanged(meta)) { + start = 0; + count = points.length; + } + line._chart = this.chart; + line._datasetIndex = this.index; + line._decimated = !!_dataset._decimated; + line.points = points; + const options = this.resolveDatasetElementOptions(mode); + if (!this.options.showLine) { + options.borderWidth = 0; + } + options.segment = this.options.segment; + this.updateElement(line, undefined, { + animated: !animationsDisabled, + options + }, mode); + this.updateElements(points, start, count, mode); + } + updateElements(points, start, count, mode) { + const reset = mode === 'reset'; + const {iScale, vScale, _stacked, _dataset} = this._cachedMeta; + const firstOpts = this.resolveDataElementOptions(start, mode); + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions); + const iAxis = iScale.axis; + const vAxis = vScale.axis; + const {spanGaps, segment} = this.options; + const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY; + const directUpdate = this.chart._animationsDisabled || reset || mode === 'none'; + let prevParsed = start > 0 && this.getParsed(start - 1); + for (let i = start; i < start + count; ++i) { + const point = points[i]; + const parsed = this.getParsed(i); + const properties = directUpdate ? point : {}; + const nullData = isNullOrUndef(parsed[vAxis]); + const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i); + const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i); + properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData; + properties.stop = i > 0 && (parsed[iAxis] - prevParsed[iAxis]) > maxGapLength; + if (segment) { + properties.parsed = parsed; + properties.raw = _dataset.data[i]; + } + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode); + } + if (!directUpdate) { + this.updateElement(point, i, properties, mode); + } + prevParsed = parsed; + } + this.updateSharedOptions(sharedOptions, mode, firstOpts); + } + getMaxOverflow() { + const meta = this._cachedMeta; + const dataset = meta.dataset; + const border = dataset.options && dataset.options.borderWidth || 0; + const data = meta.data || []; + if (!data.length) { + return border; + } + const firstPoint = data[0].size(this.resolveDataElementOptions(0)); + const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1)); + return Math.max(border, firstPoint, lastPoint) / 2; + } + draw() { + const meta = this._cachedMeta; + meta.dataset.updateControlPoints(this.chart.chartArea, meta.iScale.axis); + super.draw(); + } +} +LineController.id = 'line'; +LineController.defaults = { + datasetElementType: 'line', + dataElementType: 'point', + showLine: true, + spanGaps: false, +}; +LineController.overrides = { + scales: { + _index_: { + type: 'category', + }, + _value_: { + type: 'linear', + }, + } +}; +function getStartAndCountOfVisiblePoints(meta, points, animationsDisabled) { + const pointCount = points.length; + let start = 0; + let count = pointCount; + if (meta._sorted) { + const {iScale, _parsed} = meta; + const axis = iScale.axis; + const {min, max, minDefined, maxDefined} = iScale.getUserBounds(); + if (minDefined) { + start = _limitValue(Math.min( + _lookupByKey(_parsed, iScale.axis, min).lo, + animationsDisabled ? pointCount : _lookupByKey(points, axis, iScale.getPixelForValue(min)).lo), + 0, pointCount - 1); + } + if (maxDefined) { + count = _limitValue(Math.max( + _lookupByKey(_parsed, iScale.axis, max).hi + 1, + animationsDisabled ? 0 : _lookupByKey(points, axis, iScale.getPixelForValue(max)).hi + 1), + start, pointCount) - start; + } else { + count = pointCount - start; + } + } + return {start, count}; +} +function scaleRangesChanged(meta) { + const {xScale, yScale, _scaleRanges} = meta; + const newRanges = { + xmin: xScale.min, + xmax: xScale.max, + ymin: yScale.min, + ymax: yScale.max + }; + if (!_scaleRanges) { + meta._scaleRanges = newRanges; + return true; + } + const changed = _scaleRanges.xmin !== xScale.min + || _scaleRanges.xmax !== xScale.max + || _scaleRanges.ymin !== yScale.min + || _scaleRanges.ymax !== yScale.max; + Object.assign(_scaleRanges, newRanges); + return changed; +} + +class PolarAreaController extends DatasetController { + constructor(chart, datasetIndex) { + super(chart, datasetIndex); + this.innerRadius = undefined; + this.outerRadius = undefined; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const chart = this.chart; + const labels = chart.data.labels || []; + const value = formatNumber(meta._parsed[index].r, chart.options.locale); + return { + label: labels[index] || '', + value, + }; + } + update(mode) { + const arcs = this._cachedMeta.data; + this._updateRadius(); + this.updateElements(arcs, 0, arcs.length, mode); + } + _updateRadius() { + const chart = this.chart; + const chartArea = chart.chartArea; + const opts = chart.options; + const minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top); + const outerRadius = Math.max(minSize / 2, 0); + const innerRadius = Math.max(opts.cutoutPercentage ? (outerRadius / 100) * (opts.cutoutPercentage) : 1, 0); + const radiusLength = (outerRadius - innerRadius) / chart.getVisibleDatasetCount(); + this.outerRadius = outerRadius - (radiusLength * this.index); + this.innerRadius = this.outerRadius - radiusLength; + } + updateElements(arcs, start, count, mode) { + const reset = mode === 'reset'; + const chart = this.chart; + const dataset = this.getDataset(); + const opts = chart.options; + const animationOpts = opts.animation; + const scale = this._cachedMeta.rScale; + const centerX = scale.xCenter; + const centerY = scale.yCenter; + const datasetStartAngle = scale.getIndexAngle(0) - 0.5 * PI; + let angle = datasetStartAngle; + let i; + const defaultAngle = 360 / this.countVisibleElements(); + for (i = 0; i < start; ++i) { + angle += this._computeAngle(i, mode, defaultAngle); + } + for (i = start; i < start + count; i++) { + const arc = arcs[i]; + let startAngle = angle; + let endAngle = angle + this._computeAngle(i, mode, defaultAngle); + let outerRadius = chart.getDataVisibility(i) ? scale.getDistanceFromCenterForValue(dataset.data[i]) : 0; + angle = endAngle; + if (reset) { + if (animationOpts.animateScale) { + outerRadius = 0; + } + if (animationOpts.animateRotate) { + startAngle = endAngle = datasetStartAngle; + } + } + const properties = { + x: centerX, + y: centerY, + innerRadius: 0, + outerRadius, + startAngle, + endAngle, + options: this.resolveDataElementOptions(i, arc.active ? 'active' : mode) + }; + this.updateElement(arc, i, properties, mode); + } + } + countVisibleElements() { + const dataset = this.getDataset(); + const meta = this._cachedMeta; + let count = 0; + meta.data.forEach((element, index) => { + if (!isNaN(dataset.data[index]) && this.chart.getDataVisibility(index)) { + count++; + } + }); + return count; + } + _computeAngle(index, mode, defaultAngle) { + return this.chart.getDataVisibility(index) + ? toRadians(this.resolveDataElementOptions(index, mode).angle || defaultAngle) + : 0; + } +} +PolarAreaController.id = 'polarArea'; +PolarAreaController.defaults = { + dataElementType: 'arc', + animation: { + animateRotate: true, + animateScale: true + }, + animations: { + numbers: { + type: 'number', + properties: ['x', 'y', 'startAngle', 'endAngle', 'innerRadius', 'outerRadius'] + }, + }, + indexAxis: 'r', + startAngle: 0, +}; +PolarAreaController.overrides = { + aspectRatio: 1, + plugins: { + legend: { + labels: { + generateLabels(chart) { + const data = chart.data; + if (data.labels.length && data.datasets.length) { + const {labels: {pointStyle}} = chart.legend.options; + return data.labels.map((label, i) => { + const meta = chart.getDatasetMeta(0); + const style = meta.controller.getStyle(i); + return { + text: label, + fillStyle: style.backgroundColor, + strokeStyle: style.borderColor, + lineWidth: style.borderWidth, + pointStyle: pointStyle, + hidden: !chart.getDataVisibility(i), + index: i + }; + }); + } + return []; + } + }, + onClick(e, legendItem, legend) { + legend.chart.toggleDataVisibility(legendItem.index); + legend.chart.update(); + } + }, + tooltip: { + callbacks: { + title() { + return ''; + }, + label(context) { + return context.chart.data.labels[context.dataIndex] + ': ' + context.formattedValue; + } + } + } + }, + scales: { + r: { + type: 'radialLinear', + angleLines: { + display: false + }, + beginAtZero: true, + grid: { + circular: true + }, + pointLabels: { + display: false + }, + startAngle: 0 + } + } +}; + +class PieController extends DoughnutController { +} +PieController.id = 'pie'; +PieController.defaults = { + cutout: 0, + rotation: 0, + circumference: 360, + radius: '100%' +}; + +class RadarController extends DatasetController { + getLabelAndValue(index) { + const vScale = this._cachedMeta.vScale; + const parsed = this.getParsed(index); + return { + label: vScale.getLabels()[index], + value: '' + vScale.getLabelForValue(parsed[vScale.axis]) + }; + } + update(mode) { + const meta = this._cachedMeta; + const line = meta.dataset; + const points = meta.data || []; + const labels = meta.iScale.getLabels(); + line.points = points; + if (mode !== 'resize') { + const options = this.resolveDatasetElementOptions(mode); + if (!this.options.showLine) { + options.borderWidth = 0; + } + const properties = { + _loop: true, + _fullLoop: labels.length === points.length, + options + }; + this.updateElement(line, undefined, properties, mode); + } + this.updateElements(points, 0, points.length, mode); + } + updateElements(points, start, count, mode) { + const dataset = this.getDataset(); + const scale = this._cachedMeta.rScale; + const reset = mode === 'reset'; + for (let i = start; i < start + count; i++) { + const point = points[i]; + const options = this.resolveDataElementOptions(i, point.active ? 'active' : mode); + const pointPosition = scale.getPointPositionForValue(i, dataset.data[i]); + const x = reset ? scale.xCenter : pointPosition.x; + const y = reset ? scale.yCenter : pointPosition.y; + const properties = { + x, + y, + angle: pointPosition.angle, + skip: isNaN(x) || isNaN(y), + options + }; + this.updateElement(point, i, properties, mode); + } + } +} +RadarController.id = 'radar'; +RadarController.defaults = { + datasetElementType: 'line', + dataElementType: 'point', + indexAxis: 'r', + showLine: true, + elements: { + line: { + fill: 'start' + } + }, +}; +RadarController.overrides = { + aspectRatio: 1, + scales: { + r: { + type: 'radialLinear', + } + } +}; + +class ScatterController extends LineController { +} +ScatterController.id = 'scatter'; +ScatterController.defaults = { + showLine: false, + fill: false +}; +ScatterController.overrides = { + interaction: { + mode: 'point' + }, + plugins: { + tooltip: { + callbacks: { + title() { + return ''; + }, + label(item) { + return '(' + item.label + ', ' + item.formattedValue + ')'; + } + } + } + }, + scales: { + x: { + type: 'linear' + }, + y: { + type: 'linear' + } + } +}; + +var controllers = /*#__PURE__*/Object.freeze({ +__proto__: null, +BarController: BarController, +BubbleController: BubbleController, +DoughnutController: DoughnutController, +LineController: LineController, +PolarAreaController: PolarAreaController, +PieController: PieController, +RadarController: RadarController, +ScatterController: ScatterController +}); + +function clipArc(ctx, element, endAngle) { + const {startAngle, pixelMargin, x, y, outerRadius, innerRadius} = element; + let angleMargin = pixelMargin / outerRadius; + ctx.beginPath(); + ctx.arc(x, y, outerRadius, startAngle - angleMargin, endAngle + angleMargin); + if (innerRadius > pixelMargin) { + angleMargin = pixelMargin / innerRadius; + ctx.arc(x, y, innerRadius, endAngle + angleMargin, startAngle - angleMargin, true); + } else { + ctx.arc(x, y, pixelMargin, endAngle + HALF_PI, startAngle - HALF_PI); + } + ctx.closePath(); + ctx.clip(); +} +function toRadiusCorners(value) { + return _readValueToProps(value, ['outerStart', 'outerEnd', 'innerStart', 'innerEnd']); +} +function parseBorderRadius$1(arc, innerRadius, outerRadius, angleDelta) { + const o = toRadiusCorners(arc.options.borderRadius); + const halfThickness = (outerRadius - innerRadius) / 2; + const innerLimit = Math.min(halfThickness, angleDelta * innerRadius / 2); + const computeOuterLimit = (val) => { + const outerArcLimit = (outerRadius - Math.min(halfThickness, val)) * angleDelta / 2; + return _limitValue(val, 0, Math.min(halfThickness, outerArcLimit)); + }; + return { + outerStart: computeOuterLimit(o.outerStart), + outerEnd: computeOuterLimit(o.outerEnd), + innerStart: _limitValue(o.innerStart, 0, innerLimit), + innerEnd: _limitValue(o.innerEnd, 0, innerLimit), + }; +} +function rThetaToXY(r, theta, x, y) { + return { + x: x + r * Math.cos(theta), + y: y + r * Math.sin(theta), + }; +} +function pathArc(ctx, element, offset, spacing, end) { + const {x, y, startAngle: start, pixelMargin, innerRadius: innerR} = element; + const outerRadius = Math.max(element.outerRadius + spacing + offset - pixelMargin, 0); + const innerRadius = innerR > 0 ? innerR + spacing + offset + pixelMargin : 0; + let spacingOffset = 0; + const alpha = end - start; + if (spacing) { + const noSpacingInnerRadius = innerR > 0 ? innerR - spacing : 0; + const noSpacingOuterRadius = outerRadius > 0 ? outerRadius - spacing : 0; + const avNogSpacingRadius = (noSpacingInnerRadius + noSpacingOuterRadius) / 2; + const adjustedAngle = avNogSpacingRadius !== 0 ? (alpha * avNogSpacingRadius) / (avNogSpacingRadius + spacing) : alpha; + spacingOffset = (alpha - adjustedAngle) / 2; + } + const beta = Math.max(0.001, alpha * outerRadius - offset / PI) / outerRadius; + const angleOffset = (alpha - beta) / 2; + const startAngle = start + angleOffset + spacingOffset; + const endAngle = end - angleOffset - spacingOffset; + const {outerStart, outerEnd, innerStart, innerEnd} = parseBorderRadius$1(element, innerRadius, outerRadius, endAngle - startAngle); + const outerStartAdjustedRadius = outerRadius - outerStart; + const outerEndAdjustedRadius = outerRadius - outerEnd; + const outerStartAdjustedAngle = startAngle + outerStart / outerStartAdjustedRadius; + const outerEndAdjustedAngle = endAngle - outerEnd / outerEndAdjustedRadius; + const innerStartAdjustedRadius = innerRadius + innerStart; + const innerEndAdjustedRadius = innerRadius + innerEnd; + const innerStartAdjustedAngle = startAngle + innerStart / innerStartAdjustedRadius; + const innerEndAdjustedAngle = endAngle - innerEnd / innerEndAdjustedRadius; + ctx.beginPath(); + ctx.arc(x, y, outerRadius, outerStartAdjustedAngle, outerEndAdjustedAngle); + if (outerEnd > 0) { + const pCenter = rThetaToXY(outerEndAdjustedRadius, outerEndAdjustedAngle, x, y); + ctx.arc(pCenter.x, pCenter.y, outerEnd, outerEndAdjustedAngle, endAngle + HALF_PI); + } + const p4 = rThetaToXY(innerEndAdjustedRadius, endAngle, x, y); + ctx.lineTo(p4.x, p4.y); + if (innerEnd > 0) { + const pCenter = rThetaToXY(innerEndAdjustedRadius, innerEndAdjustedAngle, x, y); + ctx.arc(pCenter.x, pCenter.y, innerEnd, endAngle + HALF_PI, innerEndAdjustedAngle + Math.PI); + } + ctx.arc(x, y, innerRadius, endAngle - (innerEnd / innerRadius), startAngle + (innerStart / innerRadius), true); + if (innerStart > 0) { + const pCenter = rThetaToXY(innerStartAdjustedRadius, innerStartAdjustedAngle, x, y); + ctx.arc(pCenter.x, pCenter.y, innerStart, innerStartAdjustedAngle + Math.PI, startAngle - HALF_PI); + } + const p8 = rThetaToXY(outerStartAdjustedRadius, startAngle, x, y); + ctx.lineTo(p8.x, p8.y); + if (outerStart > 0) { + const pCenter = rThetaToXY(outerStartAdjustedRadius, outerStartAdjustedAngle, x, y); + ctx.arc(pCenter.x, pCenter.y, outerStart, startAngle - HALF_PI, outerStartAdjustedAngle); + } + ctx.closePath(); +} +function drawArc(ctx, element, offset, spacing) { + const {fullCircles, startAngle, circumference} = element; + let endAngle = element.endAngle; + if (fullCircles) { + pathArc(ctx, element, offset, spacing, startAngle + TAU); + for (let i = 0; i < fullCircles; ++i) { + ctx.fill(); + } + if (!isNaN(circumference)) { + endAngle = startAngle + circumference % TAU; + if (circumference % TAU === 0) { + endAngle += TAU; + } + } + } + pathArc(ctx, element, offset, spacing, endAngle); + ctx.fill(); + return endAngle; +} +function drawFullCircleBorders(ctx, element, inner) { + const {x, y, startAngle, pixelMargin, fullCircles} = element; + const outerRadius = Math.max(element.outerRadius - pixelMargin, 0); + const innerRadius = element.innerRadius + pixelMargin; + let i; + if (inner) { + clipArc(ctx, element, startAngle + TAU); + } + ctx.beginPath(); + ctx.arc(x, y, innerRadius, startAngle + TAU, startAngle, true); + for (i = 0; i < fullCircles; ++i) { + ctx.stroke(); + } + ctx.beginPath(); + ctx.arc(x, y, outerRadius, startAngle, startAngle + TAU); + for (i = 0; i < fullCircles; ++i) { + ctx.stroke(); + } +} +function drawBorder(ctx, element, offset, spacing, endAngle) { + const {options} = element; + const {borderWidth, borderJoinStyle} = options; + const inner = options.borderAlign === 'inner'; + if (!borderWidth) { + return; + } + if (inner) { + ctx.lineWidth = borderWidth * 2; + ctx.lineJoin = borderJoinStyle || 'round'; + } else { + ctx.lineWidth = borderWidth; + ctx.lineJoin = borderJoinStyle || 'bevel'; + } + if (element.fullCircles) { + drawFullCircleBorders(ctx, element, inner); + } + if (inner) { + clipArc(ctx, element, endAngle); + } + pathArc(ctx, element, offset, spacing, endAngle); + ctx.stroke(); +} +class ArcElement extends Element { + constructor(cfg) { + super(); + this.options = undefined; + this.circumference = undefined; + this.startAngle = undefined; + this.endAngle = undefined; + this.innerRadius = undefined; + this.outerRadius = undefined; + this.pixelMargin = 0; + this.fullCircles = 0; + if (cfg) { + Object.assign(this, cfg); + } + } + inRange(chartX, chartY, useFinalPosition) { + const point = this.getProps(['x', 'y'], useFinalPosition); + const {angle, distance} = getAngleFromPoint(point, {x: chartX, y: chartY}); + const {startAngle, endAngle, innerRadius, outerRadius, circumference} = this.getProps([ + 'startAngle', + 'endAngle', + 'innerRadius', + 'outerRadius', + 'circumference' + ], useFinalPosition); + const rAdjust = this.options.spacing / 2; + const _circumference = valueOrDefault(circumference, endAngle - startAngle); + const betweenAngles = _circumference >= TAU || _angleBetween(angle, startAngle, endAngle); + const withinRadius = _isBetween(distance, innerRadius + rAdjust, outerRadius + rAdjust); + return (betweenAngles && withinRadius); + } + getCenterPoint(useFinalPosition) { + const {x, y, startAngle, endAngle, innerRadius, outerRadius} = this.getProps([ + 'x', + 'y', + 'startAngle', + 'endAngle', + 'innerRadius', + 'outerRadius', + 'circumference', + ], useFinalPosition); + const {offset, spacing} = this.options; + const halfAngle = (startAngle + endAngle) / 2; + const halfRadius = (innerRadius + outerRadius + spacing + offset) / 2; + return { + x: x + Math.cos(halfAngle) * halfRadius, + y: y + Math.sin(halfAngle) * halfRadius + }; + } + tooltipPosition(useFinalPosition) { + return this.getCenterPoint(useFinalPosition); + } + draw(ctx) { + const {options, circumference} = this; + const offset = (options.offset || 0) / 2; + const spacing = (options.spacing || 0) / 2; + this.pixelMargin = (options.borderAlign === 'inner') ? 0.33 : 0; + this.fullCircles = circumference > TAU ? Math.floor(circumference / TAU) : 0; + if (circumference === 0 || this.innerRadius < 0 || this.outerRadius < 0) { + return; + } + ctx.save(); + let radiusOffset = 0; + if (offset) { + radiusOffset = offset / 2; + const halfAngle = (this.startAngle + this.endAngle) / 2; + ctx.translate(Math.cos(halfAngle) * radiusOffset, Math.sin(halfAngle) * radiusOffset); + if (this.circumference >= PI) { + radiusOffset = offset; + } + } + ctx.fillStyle = options.backgroundColor; + ctx.strokeStyle = options.borderColor; + const endAngle = drawArc(ctx, this, radiusOffset, spacing); + drawBorder(ctx, this, radiusOffset, spacing, endAngle); + ctx.restore(); + } +} +ArcElement.id = 'arc'; +ArcElement.defaults = { + borderAlign: 'center', + borderColor: '#fff', + borderJoinStyle: undefined, + borderRadius: 0, + borderWidth: 2, + offset: 0, + spacing: 0, + angle: undefined, +}; +ArcElement.defaultRoutes = { + backgroundColor: 'backgroundColor' +}; + +function setStyle(ctx, options, style = options) { + ctx.lineCap = valueOrDefault(style.borderCapStyle, options.borderCapStyle); + ctx.setLineDash(valueOrDefault(style.borderDash, options.borderDash)); + ctx.lineDashOffset = valueOrDefault(style.borderDashOffset, options.borderDashOffset); + ctx.lineJoin = valueOrDefault(style.borderJoinStyle, options.borderJoinStyle); + ctx.lineWidth = valueOrDefault(style.borderWidth, options.borderWidth); + ctx.strokeStyle = valueOrDefault(style.borderColor, options.borderColor); +} +function lineTo(ctx, previous, target) { + ctx.lineTo(target.x, target.y); +} +function getLineMethod(options) { + if (options.stepped) { + return _steppedLineTo; + } + if (options.tension || options.cubicInterpolationMode === 'monotone') { + return _bezierCurveTo; + } + return lineTo; +} +function pathVars(points, segment, params = {}) { + const count = points.length; + const {start: paramsStart = 0, end: paramsEnd = count - 1} = params; + const {start: segmentStart, end: segmentEnd} = segment; + const start = Math.max(paramsStart, segmentStart); + const end = Math.min(paramsEnd, segmentEnd); + const outside = paramsStart < segmentStart && paramsEnd < segmentStart || paramsStart > segmentEnd && paramsEnd > segmentEnd; + return { + count, + start, + loop: segment.loop, + ilen: end < start && !outside ? count + end - start : end - start + }; +} +function pathSegment(ctx, line, segment, params) { + const {points, options} = line; + const {count, start, loop, ilen} = pathVars(points, segment, params); + const lineMethod = getLineMethod(options); + let {move = true, reverse} = params || {}; + let i, point, prev; + for (i = 0; i <= ilen; ++i) { + point = points[(start + (reverse ? ilen - i : i)) % count]; + if (point.skip) { + continue; + } else if (move) { + ctx.moveTo(point.x, point.y); + move = false; + } else { + lineMethod(ctx, prev, point, reverse, options.stepped); + } + prev = point; + } + if (loop) { + point = points[(start + (reverse ? ilen : 0)) % count]; + lineMethod(ctx, prev, point, reverse, options.stepped); + } + return !!loop; +} +function fastPathSegment(ctx, line, segment, params) { + const points = line.points; + const {count, start, ilen} = pathVars(points, segment, params); + const {move = true, reverse} = params || {}; + let avgX = 0; + let countX = 0; + let i, point, prevX, minY, maxY, lastY; + const pointIndex = (index) => (start + (reverse ? ilen - index : index)) % count; + const drawX = () => { + if (minY !== maxY) { + ctx.lineTo(avgX, maxY); + ctx.lineTo(avgX, minY); + ctx.lineTo(avgX, lastY); + } + }; + if (move) { + point = points[pointIndex(0)]; + ctx.moveTo(point.x, point.y); + } + for (i = 0; i <= ilen; ++i) { + point = points[pointIndex(i)]; + if (point.skip) { + continue; + } + const x = point.x; + const y = point.y; + const truncX = x | 0; + if (truncX === prevX) { + if (y < minY) { + minY = y; + } else if (y > maxY) { + maxY = y; + } + avgX = (countX * avgX + x) / ++countX; + } else { + drawX(); + ctx.lineTo(x, y); + prevX = truncX; + countX = 0; + minY = maxY = y; + } + lastY = y; + } + drawX(); +} +function _getSegmentMethod(line) { + const opts = line.options; + const borderDash = opts.borderDash && opts.borderDash.length; + const useFastPath = !line._decimated && !line._loop && !opts.tension && opts.cubicInterpolationMode !== 'monotone' && !opts.stepped && !borderDash; + return useFastPath ? fastPathSegment : pathSegment; +} +function _getInterpolationMethod(options) { + if (options.stepped) { + return _steppedInterpolation; + } + if (options.tension || options.cubicInterpolationMode === 'monotone') { + return _bezierInterpolation; + } + return _pointInLine; +} +function strokePathWithCache(ctx, line, start, count) { + let path = line._path; + if (!path) { + path = line._path = new Path2D(); + if (line.path(path, start, count)) { + path.closePath(); + } + } + setStyle(ctx, line.options); + ctx.stroke(path); +} +function strokePathDirect(ctx, line, start, count) { + const {segments, options} = line; + const segmentMethod = _getSegmentMethod(line); + for (const segment of segments) { + setStyle(ctx, options, segment.style); + ctx.beginPath(); + if (segmentMethod(ctx, line, segment, {start, end: start + count - 1})) { + ctx.closePath(); + } + ctx.stroke(); + } +} +const usePath2D = typeof Path2D === 'function'; +function draw(ctx, line, start, count) { + if (usePath2D && !line.options.segment) { + strokePathWithCache(ctx, line, start, count); + } else { + strokePathDirect(ctx, line, start, count); + } +} +class LineElement extends Element { + constructor(cfg) { + super(); + this.animated = true; + this.options = undefined; + this._chart = undefined; + this._loop = undefined; + this._fullLoop = undefined; + this._path = undefined; + this._points = undefined; + this._segments = undefined; + this._decimated = false; + this._pointsUpdated = false; + this._datasetIndex = undefined; + if (cfg) { + Object.assign(this, cfg); + } + } + updateControlPoints(chartArea, indexAxis) { + const options = this.options; + if ((options.tension || options.cubicInterpolationMode === 'monotone') && !options.stepped && !this._pointsUpdated) { + const loop = options.spanGaps ? this._loop : this._fullLoop; + _updateBezierControlPoints(this._points, options, chartArea, loop, indexAxis); + this._pointsUpdated = true; + } + } + set points(points) { + this._points = points; + delete this._segments; + delete this._path; + this._pointsUpdated = false; + } + get points() { + return this._points; + } + get segments() { + return this._segments || (this._segments = _computeSegments(this, this.options.segment)); + } + first() { + const segments = this.segments; + const points = this.points; + return segments.length && points[segments[0].start]; + } + last() { + const segments = this.segments; + const points = this.points; + const count = segments.length; + return count && points[segments[count - 1].end]; + } + interpolate(point, property) { + const options = this.options; + const value = point[property]; + const points = this.points; + const segments = _boundSegments(this, {property, start: value, end: value}); + if (!segments.length) { + return; + } + const result = []; + const _interpolate = _getInterpolationMethod(options); + let i, ilen; + for (i = 0, ilen = segments.length; i < ilen; ++i) { + const {start, end} = segments[i]; + const p1 = points[start]; + const p2 = points[end]; + if (p1 === p2) { + result.push(p1); + continue; + } + const t = Math.abs((value - p1[property]) / (p2[property] - p1[property])); + const interpolated = _interpolate(p1, p2, t, options.stepped); + interpolated[property] = point[property]; + result.push(interpolated); + } + return result.length === 1 ? result[0] : result; + } + pathSegment(ctx, segment, params) { + const segmentMethod = _getSegmentMethod(this); + return segmentMethod(ctx, this, segment, params); + } + path(ctx, start, count) { + const segments = this.segments; + const segmentMethod = _getSegmentMethod(this); + let loop = this._loop; + start = start || 0; + count = count || (this.points.length - start); + for (const segment of segments) { + loop &= segmentMethod(ctx, this, segment, {start, end: start + count - 1}); + } + return !!loop; + } + draw(ctx, chartArea, start, count) { + const options = this.options || {}; + const points = this.points || []; + if (points.length && options.borderWidth) { + ctx.save(); + draw(ctx, this, start, count); + ctx.restore(); + } + if (this.animated) { + this._pointsUpdated = false; + this._path = undefined; + } + } +} +LineElement.id = 'line'; +LineElement.defaults = { + borderCapStyle: 'butt', + borderDash: [], + borderDashOffset: 0, + borderJoinStyle: 'miter', + borderWidth: 3, + capBezierPoints: true, + cubicInterpolationMode: 'default', + fill: false, + spanGaps: false, + stepped: false, + tension: 0, +}; +LineElement.defaultRoutes = { + backgroundColor: 'backgroundColor', + borderColor: 'borderColor' +}; +LineElement.descriptors = { + _scriptable: true, + _indexable: (name) => name !== 'borderDash' && name !== 'fill', +}; + +function inRange$1(el, pos, axis, useFinalPosition) { + const options = el.options; + const {[axis]: value} = el.getProps([axis], useFinalPosition); + return (Math.abs(pos - value) < options.radius + options.hitRadius); +} +class PointElement extends Element { + constructor(cfg) { + super(); + this.options = undefined; + this.parsed = undefined; + this.skip = undefined; + this.stop = undefined; + if (cfg) { + Object.assign(this, cfg); + } + } + inRange(mouseX, mouseY, useFinalPosition) { + const options = this.options; + const {x, y} = this.getProps(['x', 'y'], useFinalPosition); + return ((Math.pow(mouseX - x, 2) + Math.pow(mouseY - y, 2)) < Math.pow(options.hitRadius + options.radius, 2)); + } + inXRange(mouseX, useFinalPosition) { + return inRange$1(this, mouseX, 'x', useFinalPosition); + } + inYRange(mouseY, useFinalPosition) { + return inRange$1(this, mouseY, 'y', useFinalPosition); + } + getCenterPoint(useFinalPosition) { + const {x, y} = this.getProps(['x', 'y'], useFinalPosition); + return {x, y}; + } + size(options) { + options = options || this.options || {}; + let radius = options.radius || 0; + radius = Math.max(radius, radius && options.hoverRadius || 0); + const borderWidth = radius && options.borderWidth || 0; + return (radius + borderWidth) * 2; + } + draw(ctx, area) { + const options = this.options; + if (this.skip || options.radius < 0.1 || !_isPointInArea(this, area, this.size(options) / 2)) { + return; + } + ctx.strokeStyle = options.borderColor; + ctx.lineWidth = options.borderWidth; + ctx.fillStyle = options.backgroundColor; + drawPoint(ctx, options, this.x, this.y); + } + getRange() { + const options = this.options || {}; + return options.radius + options.hitRadius; + } +} +PointElement.id = 'point'; +PointElement.defaults = { + borderWidth: 1, + hitRadius: 1, + hoverBorderWidth: 1, + hoverRadius: 4, + pointStyle: 'circle', + radius: 3, + rotation: 0 +}; +PointElement.defaultRoutes = { + backgroundColor: 'backgroundColor', + borderColor: 'borderColor' +}; + +function getBarBounds(bar, useFinalPosition) { + const {x, y, base, width, height} = bar.getProps(['x', 'y', 'base', 'width', 'height'], useFinalPosition); + let left, right, top, bottom, half; + if (bar.horizontal) { + half = height / 2; + left = Math.min(x, base); + right = Math.max(x, base); + top = y - half; + bottom = y + half; + } else { + half = width / 2; + left = x - half; + right = x + half; + top = Math.min(y, base); + bottom = Math.max(y, base); + } + return {left, top, right, bottom}; +} +function skipOrLimit(skip, value, min, max) { + return skip ? 0 : _limitValue(value, min, max); +} +function parseBorderWidth(bar, maxW, maxH) { + const value = bar.options.borderWidth; + const skip = bar.borderSkipped; + const o = toTRBL(value); + return { + t: skipOrLimit(skip.top, o.top, 0, maxH), + r: skipOrLimit(skip.right, o.right, 0, maxW), + b: skipOrLimit(skip.bottom, o.bottom, 0, maxH), + l: skipOrLimit(skip.left, o.left, 0, maxW) + }; +} +function parseBorderRadius(bar, maxW, maxH) { + const {enableBorderRadius} = bar.getProps(['enableBorderRadius']); + const value = bar.options.borderRadius; + const o = toTRBLCorners(value); + const maxR = Math.min(maxW, maxH); + const skip = bar.borderSkipped; + const enableBorder = enableBorderRadius || isObject(value); + return { + topLeft: skipOrLimit(!enableBorder || skip.top || skip.left, o.topLeft, 0, maxR), + topRight: skipOrLimit(!enableBorder || skip.top || skip.right, o.topRight, 0, maxR), + bottomLeft: skipOrLimit(!enableBorder || skip.bottom || skip.left, o.bottomLeft, 0, maxR), + bottomRight: skipOrLimit(!enableBorder || skip.bottom || skip.right, o.bottomRight, 0, maxR) + }; +} +function boundingRects(bar) { + const bounds = getBarBounds(bar); + const width = bounds.right - bounds.left; + const height = bounds.bottom - bounds.top; + const border = parseBorderWidth(bar, width / 2, height / 2); + const radius = parseBorderRadius(bar, width / 2, height / 2); + return { + outer: { + x: bounds.left, + y: bounds.top, + w: width, + h: height, + radius + }, + inner: { + x: bounds.left + border.l, + y: bounds.top + border.t, + w: width - border.l - border.r, + h: height - border.t - border.b, + radius: { + topLeft: Math.max(0, radius.topLeft - Math.max(border.t, border.l)), + topRight: Math.max(0, radius.topRight - Math.max(border.t, border.r)), + bottomLeft: Math.max(0, radius.bottomLeft - Math.max(border.b, border.l)), + bottomRight: Math.max(0, radius.bottomRight - Math.max(border.b, border.r)), + } + } + }; +} +function inRange(bar, x, y, useFinalPosition) { + const skipX = x === null; + const skipY = y === null; + const skipBoth = skipX && skipY; + const bounds = bar && !skipBoth && getBarBounds(bar, useFinalPosition); + return bounds + && (skipX || _isBetween(x, bounds.left, bounds.right)) + && (skipY || _isBetween(y, bounds.top, bounds.bottom)); +} +function hasRadius(radius) { + return radius.topLeft || radius.topRight || radius.bottomLeft || radius.bottomRight; +} +function addNormalRectPath(ctx, rect) { + ctx.rect(rect.x, rect.y, rect.w, rect.h); +} +function inflateRect(rect, amount, refRect = {}) { + const x = rect.x !== refRect.x ? -amount : 0; + const y = rect.y !== refRect.y ? -amount : 0; + const w = (rect.x + rect.w !== refRect.x + refRect.w ? amount : 0) - x; + const h = (rect.y + rect.h !== refRect.y + refRect.h ? amount : 0) - y; + return { + x: rect.x + x, + y: rect.y + y, + w: rect.w + w, + h: rect.h + h, + radius: rect.radius + }; +} +class BarElement extends Element { + constructor(cfg) { + super(); + this.options = undefined; + this.horizontal = undefined; + this.base = undefined; + this.width = undefined; + this.height = undefined; + this.inflateAmount = undefined; + if (cfg) { + Object.assign(this, cfg); + } + } + draw(ctx) { + const {inflateAmount, options: {borderColor, backgroundColor}} = this; + const {inner, outer} = boundingRects(this); + const addRectPath = hasRadius(outer.radius) ? addRoundedRectPath : addNormalRectPath; + ctx.save(); + if (outer.w !== inner.w || outer.h !== inner.h) { + ctx.beginPath(); + addRectPath(ctx, inflateRect(outer, inflateAmount, inner)); + ctx.clip(); + addRectPath(ctx, inflateRect(inner, -inflateAmount, outer)); + ctx.fillStyle = borderColor; + ctx.fill('evenodd'); + } + ctx.beginPath(); + addRectPath(ctx, inflateRect(inner, inflateAmount)); + ctx.fillStyle = backgroundColor; + ctx.fill(); + ctx.restore(); + } + inRange(mouseX, mouseY, useFinalPosition) { + return inRange(this, mouseX, mouseY, useFinalPosition); + } + inXRange(mouseX, useFinalPosition) { + return inRange(this, mouseX, null, useFinalPosition); + } + inYRange(mouseY, useFinalPosition) { + return inRange(this, null, mouseY, useFinalPosition); + } + getCenterPoint(useFinalPosition) { + const {x, y, base, horizontal} = this.getProps(['x', 'y', 'base', 'horizontal'], useFinalPosition); + return { + x: horizontal ? (x + base) / 2 : x, + y: horizontal ? y : (y + base) / 2 + }; + } + getRange(axis) { + return axis === 'x' ? this.width / 2 : this.height / 2; + } +} +BarElement.id = 'bar'; +BarElement.defaults = { + borderSkipped: 'start', + borderWidth: 0, + borderRadius: 0, + inflateAmount: 'auto', + pointStyle: undefined +}; +BarElement.defaultRoutes = { + backgroundColor: 'backgroundColor', + borderColor: 'borderColor' +}; + +var elements = /*#__PURE__*/Object.freeze({ +__proto__: null, +ArcElement: ArcElement, +LineElement: LineElement, +PointElement: PointElement, +BarElement: BarElement +}); + +function lttbDecimation(data, start, count, availableWidth, options) { + const samples = options.samples || availableWidth; + if (samples >= count) { + return data.slice(start, start + count); + } + const decimated = []; + const bucketWidth = (count - 2) / (samples - 2); + let sampledIndex = 0; + const endIndex = start + count - 1; + let a = start; + let i, maxAreaPoint, maxArea, area, nextA; + decimated[sampledIndex++] = data[a]; + for (i = 0; i < samples - 2; i++) { + let avgX = 0; + let avgY = 0; + let j; + const avgRangeStart = Math.floor((i + 1) * bucketWidth) + 1 + start; + const avgRangeEnd = Math.min(Math.floor((i + 2) * bucketWidth) + 1, count) + start; + const avgRangeLength = avgRangeEnd - avgRangeStart; + for (j = avgRangeStart; j < avgRangeEnd; j++) { + avgX += data[j].x; + avgY += data[j].y; + } + avgX /= avgRangeLength; + avgY /= avgRangeLength; + const rangeOffs = Math.floor(i * bucketWidth) + 1 + start; + const rangeTo = Math.min(Math.floor((i + 1) * bucketWidth) + 1, count) + start; + const {x: pointAx, y: pointAy} = data[a]; + maxArea = area = -1; + for (j = rangeOffs; j < rangeTo; j++) { + area = 0.5 * Math.abs( + (pointAx - avgX) * (data[j].y - pointAy) - + (pointAx - data[j].x) * (avgY - pointAy) + ); + if (area > maxArea) { + maxArea = area; + maxAreaPoint = data[j]; + nextA = j; + } + } + decimated[sampledIndex++] = maxAreaPoint; + a = nextA; + } + decimated[sampledIndex++] = data[endIndex]; + return decimated; +} +function minMaxDecimation(data, start, count, availableWidth) { + let avgX = 0; + let countX = 0; + let i, point, x, y, prevX, minIndex, maxIndex, startIndex, minY, maxY; + const decimated = []; + const endIndex = start + count - 1; + const xMin = data[start].x; + const xMax = data[endIndex].x; + const dx = xMax - xMin; + for (i = start; i < start + count; ++i) { + point = data[i]; + x = (point.x - xMin) / dx * availableWidth; + y = point.y; + const truncX = x | 0; + if (truncX === prevX) { + if (y < minY) { + minY = y; + minIndex = i; + } else if (y > maxY) { + maxY = y; + maxIndex = i; + } + avgX = (countX * avgX + point.x) / ++countX; + } else { + const lastIndex = i - 1; + if (!isNullOrUndef(minIndex) && !isNullOrUndef(maxIndex)) { + const intermediateIndex1 = Math.min(minIndex, maxIndex); + const intermediateIndex2 = Math.max(minIndex, maxIndex); + if (intermediateIndex1 !== startIndex && intermediateIndex1 !== lastIndex) { + decimated.push({ + ...data[intermediateIndex1], + x: avgX, + }); + } + if (intermediateIndex2 !== startIndex && intermediateIndex2 !== lastIndex) { + decimated.push({ + ...data[intermediateIndex2], + x: avgX + }); + } + } + if (i > 0 && lastIndex !== startIndex) { + decimated.push(data[lastIndex]); + } + decimated.push(point); + prevX = truncX; + countX = 0; + minY = maxY = y; + minIndex = maxIndex = startIndex = i; + } + } + return decimated; +} +function cleanDecimatedDataset(dataset) { + if (dataset._decimated) { + const data = dataset._data; + delete dataset._decimated; + delete dataset._data; + Object.defineProperty(dataset, 'data', {value: data}); + } +} +function cleanDecimatedData(chart) { + chart.data.datasets.forEach((dataset) => { + cleanDecimatedDataset(dataset); + }); +} +function getStartAndCountOfVisiblePointsSimplified(meta, points) { + const pointCount = points.length; + let start = 0; + let count; + const {iScale} = meta; + const {min, max, minDefined, maxDefined} = iScale.getUserBounds(); + if (minDefined) { + start = _limitValue(_lookupByKey(points, iScale.axis, min).lo, 0, pointCount - 1); + } + if (maxDefined) { + count = _limitValue(_lookupByKey(points, iScale.axis, max).hi + 1, start, pointCount) - start; + } else { + count = pointCount - start; + } + return {start, count}; +} +var plugin_decimation = { + id: 'decimation', + defaults: { + algorithm: 'min-max', + enabled: false, + }, + beforeElementsUpdate: (chart, args, options) => { + if (!options.enabled) { + cleanDecimatedData(chart); + return; + } + const availableWidth = chart.width; + chart.data.datasets.forEach((dataset, datasetIndex) => { + const {_data, indexAxis} = dataset; + const meta = chart.getDatasetMeta(datasetIndex); + const data = _data || dataset.data; + if (resolve([indexAxis, chart.options.indexAxis]) === 'y') { + return; + } + if (meta.type !== 'line') { + return; + } + const xAxis = chart.scales[meta.xAxisID]; + if (xAxis.type !== 'linear' && xAxis.type !== 'time') { + return; + } + if (chart.options.parsing) { + return; + } + let {start, count} = getStartAndCountOfVisiblePointsSimplified(meta, data); + const threshold = options.threshold || 4 * availableWidth; + if (count <= threshold) { + cleanDecimatedDataset(dataset); + return; + } + if (isNullOrUndef(_data)) { + dataset._data = data; + delete dataset.data; + Object.defineProperty(dataset, 'data', { + configurable: true, + enumerable: true, + get: function() { + return this._decimated; + }, + set: function(d) { + this._data = d; + } + }); + } + let decimated; + switch (options.algorithm) { + case 'lttb': + decimated = lttbDecimation(data, start, count, availableWidth, options); + break; + case 'min-max': + decimated = minMaxDecimation(data, start, count, availableWidth); + break; + default: + throw new Error(`Unsupported decimation algorithm '${options.algorithm}'`); + } + dataset._decimated = decimated; + }); + }, + destroy(chart) { + cleanDecimatedData(chart); + } +}; + +function getLineByIndex(chart, index) { + const meta = chart.getDatasetMeta(index); + const visible = meta && chart.isDatasetVisible(index); + return visible ? meta.dataset : null; +} +function parseFillOption(line) { + const options = line.options; + const fillOption = options.fill; + let fill = valueOrDefault(fillOption && fillOption.target, fillOption); + if (fill === undefined) { + fill = !!options.backgroundColor; + } + if (fill === false || fill === null) { + return false; + } + if (fill === true) { + return 'origin'; + } + return fill; +} +function decodeFill(line, index, count) { + const fill = parseFillOption(line); + if (isObject(fill)) { + return isNaN(fill.value) ? false : fill; + } + let target = parseFloat(fill); + if (isNumberFinite(target) && Math.floor(target) === target) { + if (fill[0] === '-' || fill[0] === '+') { + target = index + target; + } + if (target === index || target < 0 || target >= count) { + return false; + } + return target; + } + return ['origin', 'start', 'end', 'stack', 'shape'].indexOf(fill) >= 0 && fill; +} +function computeLinearBoundary(source) { + const {scale = {}, fill} = source; + let target = null; + let horizontal; + if (fill === 'start') { + target = scale.bottom; + } else if (fill === 'end') { + target = scale.top; + } else if (isObject(fill)) { + target = scale.getPixelForValue(fill.value); + } else if (scale.getBasePixel) { + target = scale.getBasePixel(); + } + if (isNumberFinite(target)) { + horizontal = scale.isHorizontal(); + return { + x: horizontal ? target : null, + y: horizontal ? null : target + }; + } + return null; +} +class simpleArc { + constructor(opts) { + this.x = opts.x; + this.y = opts.y; + this.radius = opts.radius; + } + pathSegment(ctx, bounds, opts) { + const {x, y, radius} = this; + bounds = bounds || {start: 0, end: TAU}; + ctx.arc(x, y, radius, bounds.end, bounds.start, true); + return !opts.bounds; + } + interpolate(point) { + const {x, y, radius} = this; + const angle = point.angle; + return { + x: x + Math.cos(angle) * radius, + y: y + Math.sin(angle) * radius, + angle + }; + } +} +function computeCircularBoundary(source) { + const {scale, fill} = source; + const options = scale.options; + const length = scale.getLabels().length; + const target = []; + const start = options.reverse ? scale.max : scale.min; + const end = options.reverse ? scale.min : scale.max; + let i, center, value; + if (fill === 'start') { + value = start; + } else if (fill === 'end') { + value = end; + } else if (isObject(fill)) { + value = fill.value; + } else { + value = scale.getBaseValue(); + } + if (options.grid.circular) { + center = scale.getPointPositionForValue(0, start); + return new simpleArc({ + x: center.x, + y: center.y, + radius: scale.getDistanceFromCenterForValue(value) + }); + } + for (i = 0; i < length; ++i) { + target.push(scale.getPointPositionForValue(i, value)); + } + return target; +} +function computeBoundary(source) { + const scale = source.scale || {}; + if (scale.getPointPositionForValue) { + return computeCircularBoundary(source); + } + return computeLinearBoundary(source); +} +function findSegmentEnd(start, end, points) { + for (;end > start; end--) { + const point = points[end]; + if (!isNaN(point.x) && !isNaN(point.y)) { + break; + } + } + return end; +} +function pointsFromSegments(boundary, line) { + const {x = null, y = null} = boundary || {}; + const linePoints = line.points; + const points = []; + line.segments.forEach(({start, end}) => { + end = findSegmentEnd(start, end, linePoints); + const first = linePoints[start]; + const last = linePoints[end]; + if (y !== null) { + points.push({x: first.x, y}); + points.push({x: last.x, y}); + } else if (x !== null) { + points.push({x, y: first.y}); + points.push({x, y: last.y}); + } + }); + return points; +} +function buildStackLine(source) { + const {scale, index, line} = source; + const points = []; + const segments = line.segments; + const sourcePoints = line.points; + const linesBelow = getLinesBelow(scale, index); + linesBelow.push(createBoundaryLine({x: null, y: scale.bottom}, line)); + for (let i = 0; i < segments.length; i++) { + const segment = segments[i]; + for (let j = segment.start; j <= segment.end; j++) { + addPointsBelow(points, sourcePoints[j], linesBelow); + } + } + return new LineElement({points, options: {}}); +} +function getLinesBelow(scale, index) { + const below = []; + const metas = scale.getMatchingVisibleMetas('line'); + for (let i = 0; i < metas.length; i++) { + const meta = metas[i]; + if (meta.index === index) { + break; + } + if (!meta.hidden) { + below.unshift(meta.dataset); + } + } + return below; +} +function addPointsBelow(points, sourcePoint, linesBelow) { + const postponed = []; + for (let j = 0; j < linesBelow.length; j++) { + const line = linesBelow[j]; + const {first, last, point} = findPoint(line, sourcePoint, 'x'); + if (!point || (first && last)) { + continue; + } + if (first) { + postponed.unshift(point); + } else { + points.push(point); + if (!last) { + break; + } + } + } + points.push(...postponed); +} +function findPoint(line, sourcePoint, property) { + const point = line.interpolate(sourcePoint, property); + if (!point) { + return {}; + } + const pointValue = point[property]; + const segments = line.segments; + const linePoints = line.points; + let first = false; + let last = false; + for (let i = 0; i < segments.length; i++) { + const segment = segments[i]; + const firstValue = linePoints[segment.start][property]; + const lastValue = linePoints[segment.end][property]; + if (_isBetween(pointValue, firstValue, lastValue)) { + first = pointValue === firstValue; + last = pointValue === lastValue; + break; + } + } + return {first, last, point}; +} +function getTarget(source) { + const {chart, fill, line} = source; + if (isNumberFinite(fill)) { + return getLineByIndex(chart, fill); + } + if (fill === 'stack') { + return buildStackLine(source); + } + if (fill === 'shape') { + return true; + } + const boundary = computeBoundary(source); + if (boundary instanceof simpleArc) { + return boundary; + } + return createBoundaryLine(boundary, line); +} +function createBoundaryLine(boundary, line) { + let points = []; + let _loop = false; + if (isArray(boundary)) { + _loop = true; + points = boundary; + } else { + points = pointsFromSegments(boundary, line); + } + return points.length ? new LineElement({ + points, + options: {tension: 0}, + _loop, + _fullLoop: _loop + }) : null; +} +function resolveTarget(sources, index, propagate) { + const source = sources[index]; + let fill = source.fill; + const visited = [index]; + let target; + if (!propagate) { + return fill; + } + while (fill !== false && visited.indexOf(fill) === -1) { + if (!isNumberFinite(fill)) { + return fill; + } + target = sources[fill]; + if (!target) { + return false; + } + if (target.visible) { + return fill; + } + visited.push(fill); + fill = target.fill; + } + return false; +} +function _clip(ctx, target, clipY) { + ctx.beginPath(); + target.path(ctx); + ctx.lineTo(target.last().x, clipY); + ctx.lineTo(target.first().x, clipY); + ctx.closePath(); + ctx.clip(); +} +function getBounds(property, first, last, loop) { + if (loop) { + return; + } + let start = first[property]; + let end = last[property]; + if (property === 'angle') { + start = _normalizeAngle(start); + end = _normalizeAngle(end); + } + return {property, start, end}; +} +function _getEdge(a, b, prop, fn) { + if (a && b) { + return fn(a[prop], b[prop]); + } + return a ? a[prop] : b ? b[prop] : 0; +} +function _segments(line, target, property) { + const segments = line.segments; + const points = line.points; + const tpoints = target.points; + const parts = []; + for (const segment of segments) { + let {start, end} = segment; + end = findSegmentEnd(start, end, points); + const bounds = getBounds(property, points[start], points[end], segment.loop); + if (!target.segments) { + parts.push({ + source: segment, + target: bounds, + start: points[start], + end: points[end] + }); + continue; + } + const targetSegments = _boundSegments(target, bounds); + for (const tgt of targetSegments) { + const subBounds = getBounds(property, tpoints[tgt.start], tpoints[tgt.end], tgt.loop); + const fillSources = _boundSegment(segment, points, subBounds); + for (const fillSource of fillSources) { + parts.push({ + source: fillSource, + target: tgt, + start: { + [property]: _getEdge(bounds, subBounds, 'start', Math.max) + }, + end: { + [property]: _getEdge(bounds, subBounds, 'end', Math.min) + } + }); + } + } + } + return parts; +} +function clipBounds(ctx, scale, bounds) { + const {top, bottom} = scale.chart.chartArea; + const {property, start, end} = bounds || {}; + if (property === 'x') { + ctx.beginPath(); + ctx.rect(start, top, end - start, bottom - top); + ctx.clip(); + } +} +function interpolatedLineTo(ctx, target, point, property) { + const interpolatedPoint = target.interpolate(point, property); + if (interpolatedPoint) { + ctx.lineTo(interpolatedPoint.x, interpolatedPoint.y); + } +} +function _fill(ctx, cfg) { + const {line, target, property, color, scale} = cfg; + const segments = _segments(line, target, property); + for (const {source: src, target: tgt, start, end} of segments) { + const {style: {backgroundColor = color} = {}} = src; + const notShape = target !== true; + ctx.save(); + ctx.fillStyle = backgroundColor; + clipBounds(ctx, scale, notShape && getBounds(property, start, end)); + ctx.beginPath(); + const lineLoop = !!line.pathSegment(ctx, src); + let loop; + if (notShape) { + if (lineLoop) { + ctx.closePath(); + } else { + interpolatedLineTo(ctx, target, end, property); + } + const targetLoop = !!target.pathSegment(ctx, tgt, {move: lineLoop, reverse: true}); + loop = lineLoop && targetLoop; + if (!loop) { + interpolatedLineTo(ctx, target, start, property); + } + } + ctx.closePath(); + ctx.fill(loop ? 'evenodd' : 'nonzero'); + ctx.restore(); + } +} +function doFill(ctx, cfg) { + const {line, target, above, below, area, scale} = cfg; + const property = line._loop ? 'angle' : cfg.axis; + ctx.save(); + if (property === 'x' && below !== above) { + _clip(ctx, target, area.top); + _fill(ctx, {line, target, color: above, scale, property}); + ctx.restore(); + ctx.save(); + _clip(ctx, target, area.bottom); + } + _fill(ctx, {line, target, color: below, scale, property}); + ctx.restore(); +} +function drawfill(ctx, source, area) { + const target = getTarget(source); + const {line, scale, axis} = source; + const lineOpts = line.options; + const fillOption = lineOpts.fill; + const color = lineOpts.backgroundColor; + const {above = color, below = color} = fillOption || {}; + if (target && line.points.length) { + clipArea(ctx, area); + doFill(ctx, {line, target, above, below, area, scale, axis}); + unclipArea(ctx); + } +} +var plugin_filler = { + id: 'filler', + afterDatasetsUpdate(chart, _args, options) { + const count = (chart.data.datasets || []).length; + const sources = []; + let meta, i, line, source; + for (i = 0; i < count; ++i) { + meta = chart.getDatasetMeta(i); + line = meta.dataset; + source = null; + if (line && line.options && line instanceof LineElement) { + source = { + visible: chart.isDatasetVisible(i), + index: i, + fill: decodeFill(line, i, count), + chart, + axis: meta.controller.options.indexAxis, + scale: meta.vScale, + line, + }; + } + meta.$filler = source; + sources.push(source); + } + for (i = 0; i < count; ++i) { + source = sources[i]; + if (!source || source.fill === false) { + continue; + } + source.fill = resolveTarget(sources, i, options.propagate); + } + }, + beforeDraw(chart, _args, options) { + const draw = options.drawTime === 'beforeDraw'; + const metasets = chart.getSortedVisibleDatasetMetas(); + const area = chart.chartArea; + for (let i = metasets.length - 1; i >= 0; --i) { + const source = metasets[i].$filler; + if (!source) { + continue; + } + source.line.updateControlPoints(area, source.axis); + if (draw) { + drawfill(chart.ctx, source, area); + } + } + }, + beforeDatasetsDraw(chart, _args, options) { + if (options.drawTime !== 'beforeDatasetsDraw') { + return; + } + const metasets = chart.getSortedVisibleDatasetMetas(); + for (let i = metasets.length - 1; i >= 0; --i) { + const source = metasets[i].$filler; + if (source) { + drawfill(chart.ctx, source, chart.chartArea); + } + } + }, + beforeDatasetDraw(chart, args, options) { + const source = args.meta.$filler; + if (!source || source.fill === false || options.drawTime !== 'beforeDatasetDraw') { + return; + } + drawfill(chart.ctx, source, chart.chartArea); + }, + defaults: { + propagate: true, + drawTime: 'beforeDatasetDraw' + } +}; + +const getBoxSize = (labelOpts, fontSize) => { + let {boxHeight = fontSize, boxWidth = fontSize} = labelOpts; + if (labelOpts.usePointStyle) { + boxHeight = Math.min(boxHeight, fontSize); + boxWidth = Math.min(boxWidth, fontSize); + } + return { + boxWidth, + boxHeight, + itemHeight: Math.max(fontSize, boxHeight) + }; +}; +const itemsEqual = (a, b) => a !== null && b !== null && a.datasetIndex === b.datasetIndex && a.index === b.index; +class Legend extends Element { + constructor(config) { + super(); + this._added = false; + this.legendHitBoxes = []; + this._hoveredItem = null; + this.doughnutMode = false; + this.chart = config.chart; + this.options = config.options; + this.ctx = config.ctx; + this.legendItems = undefined; + this.columnSizes = undefined; + this.lineWidths = undefined; + this.maxHeight = undefined; + this.maxWidth = undefined; + this.top = undefined; + this.bottom = undefined; + this.left = undefined; + this.right = undefined; + this.height = undefined; + this.width = undefined; + this._margins = undefined; + this.position = undefined; + this.weight = undefined; + this.fullSize = undefined; + } + update(maxWidth, maxHeight, margins) { + this.maxWidth = maxWidth; + this.maxHeight = maxHeight; + this._margins = margins; + this.setDimensions(); + this.buildLabels(); + this.fit(); + } + setDimensions() { + if (this.isHorizontal()) { + this.width = this.maxWidth; + this.left = this._margins.left; + this.right = this.width; + } else { + this.height = this.maxHeight; + this.top = this._margins.top; + this.bottom = this.height; + } + } + buildLabels() { + const labelOpts = this.options.labels || {}; + let legendItems = callback(labelOpts.generateLabels, [this.chart], this) || []; + if (labelOpts.filter) { + legendItems = legendItems.filter((item) => labelOpts.filter(item, this.chart.data)); + } + if (labelOpts.sort) { + legendItems = legendItems.sort((a, b) => labelOpts.sort(a, b, this.chart.data)); + } + if (this.options.reverse) { + legendItems.reverse(); + } + this.legendItems = legendItems; + } + fit() { + const {options, ctx} = this; + if (!options.display) { + this.width = this.height = 0; + return; + } + const labelOpts = options.labels; + const labelFont = toFont(labelOpts.font); + const fontSize = labelFont.size; + const titleHeight = this._computeTitleHeight(); + const {boxWidth, itemHeight} = getBoxSize(labelOpts, fontSize); + let width, height; + ctx.font = labelFont.string; + if (this.isHorizontal()) { + width = this.maxWidth; + height = this._fitRows(titleHeight, fontSize, boxWidth, itemHeight) + 10; + } else { + height = this.maxHeight; + width = this._fitCols(titleHeight, fontSize, boxWidth, itemHeight) + 10; + } + this.width = Math.min(width, options.maxWidth || this.maxWidth); + this.height = Math.min(height, options.maxHeight || this.maxHeight); + } + _fitRows(titleHeight, fontSize, boxWidth, itemHeight) { + const {ctx, maxWidth, options: {labels: {padding}}} = this; + const hitboxes = this.legendHitBoxes = []; + const lineWidths = this.lineWidths = [0]; + const lineHeight = itemHeight + padding; + let totalHeight = titleHeight; + ctx.textAlign = 'left'; + ctx.textBaseline = 'middle'; + let row = -1; + let top = -lineHeight; + this.legendItems.forEach((legendItem, i) => { + const itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width; + if (i === 0 || lineWidths[lineWidths.length - 1] + itemWidth + 2 * padding > maxWidth) { + totalHeight += lineHeight; + lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = 0; + top += lineHeight; + row++; + } + hitboxes[i] = {left: 0, top, row, width: itemWidth, height: itemHeight}; + lineWidths[lineWidths.length - 1] += itemWidth + padding; + }); + return totalHeight; + } + _fitCols(titleHeight, fontSize, boxWidth, itemHeight) { + const {ctx, maxHeight, options: {labels: {padding}}} = this; + const hitboxes = this.legendHitBoxes = []; + const columnSizes = this.columnSizes = []; + const heightLimit = maxHeight - titleHeight; + let totalWidth = padding; + let currentColWidth = 0; + let currentColHeight = 0; + let left = 0; + let col = 0; + this.legendItems.forEach((legendItem, i) => { + const itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width; + if (i > 0 && currentColHeight + itemHeight + 2 * padding > heightLimit) { + totalWidth += currentColWidth + padding; + columnSizes.push({width: currentColWidth, height: currentColHeight}); + left += currentColWidth + padding; + col++; + currentColWidth = currentColHeight = 0; + } + hitboxes[i] = {left, top: currentColHeight, col, width: itemWidth, height: itemHeight}; + currentColWidth = Math.max(currentColWidth, itemWidth); + currentColHeight += itemHeight + padding; + }); + totalWidth += currentColWidth; + columnSizes.push({width: currentColWidth, height: currentColHeight}); + return totalWidth; + } + adjustHitBoxes() { + if (!this.options.display) { + return; + } + const titleHeight = this._computeTitleHeight(); + const {legendHitBoxes: hitboxes, options: {align, labels: {padding}, rtl}} = this; + const rtlHelper = getRtlAdapter(rtl, this.left, this.width); + if (this.isHorizontal()) { + let row = 0; + let left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]); + for (const hitbox of hitboxes) { + if (row !== hitbox.row) { + row = hitbox.row; + left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]); + } + hitbox.top += this.top + titleHeight + padding; + hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(left), hitbox.width); + left += hitbox.width + padding; + } + } else { + let col = 0; + let top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height); + for (const hitbox of hitboxes) { + if (hitbox.col !== col) { + col = hitbox.col; + top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height); + } + hitbox.top = top; + hitbox.left += this.left + padding; + hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(hitbox.left), hitbox.width); + top += hitbox.height + padding; + } + } + } + isHorizontal() { + return this.options.position === 'top' || this.options.position === 'bottom'; + } + draw() { + if (this.options.display) { + const ctx = this.ctx; + clipArea(ctx, this); + this._draw(); + unclipArea(ctx); + } + } + _draw() { + const {options: opts, columnSizes, lineWidths, ctx} = this; + const {align, labels: labelOpts} = opts; + const defaultColor = defaults.color; + const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width); + const labelFont = toFont(labelOpts.font); + const {color: fontColor, padding} = labelOpts; + const fontSize = labelFont.size; + const halfFontSize = fontSize / 2; + let cursor; + this.drawTitle(); + ctx.textAlign = rtlHelper.textAlign('left'); + ctx.textBaseline = 'middle'; + ctx.lineWidth = 0.5; + ctx.font = labelFont.string; + const {boxWidth, boxHeight, itemHeight} = getBoxSize(labelOpts, fontSize); + const drawLegendBox = function(x, y, legendItem) { + if (isNaN(boxWidth) || boxWidth <= 0 || isNaN(boxHeight) || boxHeight < 0) { + return; + } + ctx.save(); + const lineWidth = valueOrDefault(legendItem.lineWidth, 1); + ctx.fillStyle = valueOrDefault(legendItem.fillStyle, defaultColor); + ctx.lineCap = valueOrDefault(legendItem.lineCap, 'butt'); + ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, 0); + ctx.lineJoin = valueOrDefault(legendItem.lineJoin, 'miter'); + ctx.lineWidth = lineWidth; + ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, defaultColor); + ctx.setLineDash(valueOrDefault(legendItem.lineDash, [])); + if (labelOpts.usePointStyle) { + const drawOptions = { + radius: boxWidth * Math.SQRT2 / 2, + pointStyle: legendItem.pointStyle, + rotation: legendItem.rotation, + borderWidth: lineWidth + }; + const centerX = rtlHelper.xPlus(x, boxWidth / 2); + const centerY = y + halfFontSize; + drawPoint(ctx, drawOptions, centerX, centerY); + } else { + const yBoxTop = y + Math.max((fontSize - boxHeight) / 2, 0); + const xBoxLeft = rtlHelper.leftForLtr(x, boxWidth); + const borderRadius = toTRBLCorners(legendItem.borderRadius); + ctx.beginPath(); + if (Object.values(borderRadius).some(v => v !== 0)) { + addRoundedRectPath(ctx, { + x: xBoxLeft, + y: yBoxTop, + w: boxWidth, + h: boxHeight, + radius: borderRadius, + }); + } else { + ctx.rect(xBoxLeft, yBoxTop, boxWidth, boxHeight); + } + ctx.fill(); + if (lineWidth !== 0) { + ctx.stroke(); + } + } + ctx.restore(); + }; + const fillText = function(x, y, legendItem) { + renderText(ctx, legendItem.text, x, y + (itemHeight / 2), labelFont, { + strikethrough: legendItem.hidden, + textAlign: rtlHelper.textAlign(legendItem.textAlign) + }); + }; + const isHorizontal = this.isHorizontal(); + const titleHeight = this._computeTitleHeight(); + if (isHorizontal) { + cursor = { + x: _alignStartEnd(align, this.left + padding, this.right - lineWidths[0]), + y: this.top + padding + titleHeight, + line: 0 + }; + } else { + cursor = { + x: this.left + padding, + y: _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[0].height), + line: 0 + }; + } + overrideTextDirection(this.ctx, opts.textDirection); + const lineHeight = itemHeight + padding; + this.legendItems.forEach((legendItem, i) => { + ctx.strokeStyle = legendItem.fontColor || fontColor; + ctx.fillStyle = legendItem.fontColor || fontColor; + const textWidth = ctx.measureText(legendItem.text).width; + const textAlign = rtlHelper.textAlign(legendItem.textAlign || (legendItem.textAlign = labelOpts.textAlign)); + const width = boxWidth + halfFontSize + textWidth; + let x = cursor.x; + let y = cursor.y; + rtlHelper.setWidth(this.width); + if (isHorizontal) { + if (i > 0 && x + width + padding > this.right) { + y = cursor.y += lineHeight; + cursor.line++; + x = cursor.x = _alignStartEnd(align, this.left + padding, this.right - lineWidths[cursor.line]); + } + } else if (i > 0 && y + lineHeight > this.bottom) { + x = cursor.x = x + columnSizes[cursor.line].width + padding; + cursor.line++; + y = cursor.y = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[cursor.line].height); + } + const realX = rtlHelper.x(x); + drawLegendBox(realX, y, legendItem); + x = _textX(textAlign, x + boxWidth + halfFontSize, isHorizontal ? x + width : this.right, opts.rtl); + fillText(rtlHelper.x(x), y, legendItem); + if (isHorizontal) { + cursor.x += width + padding; + } else { + cursor.y += lineHeight; + } + }); + restoreTextDirection(this.ctx, opts.textDirection); + } + drawTitle() { + const opts = this.options; + const titleOpts = opts.title; + const titleFont = toFont(titleOpts.font); + const titlePadding = toPadding(titleOpts.padding); + if (!titleOpts.display) { + return; + } + const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width); + const ctx = this.ctx; + const position = titleOpts.position; + const halfFontSize = titleFont.size / 2; + const topPaddingPlusHalfFontSize = titlePadding.top + halfFontSize; + let y; + let left = this.left; + let maxWidth = this.width; + if (this.isHorizontal()) { + maxWidth = Math.max(...this.lineWidths); + y = this.top + topPaddingPlusHalfFontSize; + left = _alignStartEnd(opts.align, left, this.right - maxWidth); + } else { + const maxHeight = this.columnSizes.reduce((acc, size) => Math.max(acc, size.height), 0); + y = topPaddingPlusHalfFontSize + _alignStartEnd(opts.align, this.top, this.bottom - maxHeight - opts.labels.padding - this._computeTitleHeight()); + } + const x = _alignStartEnd(position, left, left + maxWidth); + ctx.textAlign = rtlHelper.textAlign(_toLeftRightCenter(position)); + ctx.textBaseline = 'middle'; + ctx.strokeStyle = titleOpts.color; + ctx.fillStyle = titleOpts.color; + ctx.font = titleFont.string; + renderText(ctx, titleOpts.text, x, y, titleFont); + } + _computeTitleHeight() { + const titleOpts = this.options.title; + const titleFont = toFont(titleOpts.font); + const titlePadding = toPadding(titleOpts.padding); + return titleOpts.display ? titleFont.lineHeight + titlePadding.height : 0; + } + _getLegendItemAt(x, y) { + let i, hitBox, lh; + if (_isBetween(x, this.left, this.right) + && _isBetween(y, this.top, this.bottom)) { + lh = this.legendHitBoxes; + for (i = 0; i < lh.length; ++i) { + hitBox = lh[i]; + if (_isBetween(x, hitBox.left, hitBox.left + hitBox.width) + && _isBetween(y, hitBox.top, hitBox.top + hitBox.height)) { + return this.legendItems[i]; + } + } + } + return null; + } + handleEvent(e) { + const opts = this.options; + if (!isListened(e.type, opts)) { + return; + } + const hoveredItem = this._getLegendItemAt(e.x, e.y); + if (e.type === 'mousemove') { + const previous = this._hoveredItem; + const sameItem = itemsEqual(previous, hoveredItem); + if (previous && !sameItem) { + callback(opts.onLeave, [e, previous, this], this); + } + this._hoveredItem = hoveredItem; + if (hoveredItem && !sameItem) { + callback(opts.onHover, [e, hoveredItem, this], this); + } + } else if (hoveredItem) { + callback(opts.onClick, [e, hoveredItem, this], this); + } + } +} +function isListened(type, opts) { + if (type === 'mousemove' && (opts.onHover || opts.onLeave)) { + return true; + } + if (opts.onClick && (type === 'click' || type === 'mouseup')) { + return true; + } + return false; +} +var plugin_legend = { + id: 'legend', + _element: Legend, + start(chart, _args, options) { + const legend = chart.legend = new Legend({ctx: chart.ctx, options, chart}); + layouts.configure(chart, legend, options); + layouts.addBox(chart, legend); + }, + stop(chart) { + layouts.removeBox(chart, chart.legend); + delete chart.legend; + }, + beforeUpdate(chart, _args, options) { + const legend = chart.legend; + layouts.configure(chart, legend, options); + legend.options = options; + }, + afterUpdate(chart) { + const legend = chart.legend; + legend.buildLabels(); + legend.adjustHitBoxes(); + }, + afterEvent(chart, args) { + if (!args.replay) { + chart.legend.handleEvent(args.event); + } + }, + defaults: { + display: true, + position: 'top', + align: 'center', + fullSize: true, + reverse: false, + weight: 1000, + onClick(e, legendItem, legend) { + const index = legendItem.datasetIndex; + const ci = legend.chart; + if (ci.isDatasetVisible(index)) { + ci.hide(index); + legendItem.hidden = true; + } else { + ci.show(index); + legendItem.hidden = false; + } + }, + onHover: null, + onLeave: null, + labels: { + color: (ctx) => ctx.chart.options.color, + boxWidth: 40, + padding: 10, + generateLabels(chart) { + const datasets = chart.data.datasets; + const {labels: {usePointStyle, pointStyle, textAlign, color}} = chart.legend.options; + return chart._getSortedDatasetMetas().map((meta) => { + const style = meta.controller.getStyle(usePointStyle ? 0 : undefined); + const borderWidth = toPadding(style.borderWidth); + return { + text: datasets[meta.index].label, + fillStyle: style.backgroundColor, + fontColor: color, + hidden: !meta.visible, + lineCap: style.borderCapStyle, + lineDash: style.borderDash, + lineDashOffset: style.borderDashOffset, + lineJoin: style.borderJoinStyle, + lineWidth: (borderWidth.width + borderWidth.height) / 4, + strokeStyle: style.borderColor, + pointStyle: pointStyle || style.pointStyle, + rotation: style.rotation, + textAlign: textAlign || style.textAlign, + borderRadius: 0, + datasetIndex: meta.index + }; + }, this); + } + }, + title: { + color: (ctx) => ctx.chart.options.color, + display: false, + position: 'center', + text: '', + } + }, + descriptors: { + _scriptable: (name) => !name.startsWith('on'), + labels: { + _scriptable: (name) => !['generateLabels', 'filter', 'sort'].includes(name), + } + }, +}; + +class Title extends Element { + constructor(config) { + super(); + this.chart = config.chart; + this.options = config.options; + this.ctx = config.ctx; + this._padding = undefined; + this.top = undefined; + this.bottom = undefined; + this.left = undefined; + this.right = undefined; + this.width = undefined; + this.height = undefined; + this.position = undefined; + this.weight = undefined; + this.fullSize = undefined; + } + update(maxWidth, maxHeight) { + const opts = this.options; + this.left = 0; + this.top = 0; + if (!opts.display) { + this.width = this.height = this.right = this.bottom = 0; + return; + } + this.width = this.right = maxWidth; + this.height = this.bottom = maxHeight; + const lineCount = isArray(opts.text) ? opts.text.length : 1; + this._padding = toPadding(opts.padding); + const textSize = lineCount * toFont(opts.font).lineHeight + this._padding.height; + if (this.isHorizontal()) { + this.height = textSize; + } else { + this.width = textSize; + } + } + isHorizontal() { + const pos = this.options.position; + return pos === 'top' || pos === 'bottom'; + } + _drawArgs(offset) { + const {top, left, bottom, right, options} = this; + const align = options.align; + let rotation = 0; + let maxWidth, titleX, titleY; + if (this.isHorizontal()) { + titleX = _alignStartEnd(align, left, right); + titleY = top + offset; + maxWidth = right - left; + } else { + if (options.position === 'left') { + titleX = left + offset; + titleY = _alignStartEnd(align, bottom, top); + rotation = PI * -0.5; + } else { + titleX = right - offset; + titleY = _alignStartEnd(align, top, bottom); + rotation = PI * 0.5; + } + maxWidth = bottom - top; + } + return {titleX, titleY, maxWidth, rotation}; + } + draw() { + const ctx = this.ctx; + const opts = this.options; + if (!opts.display) { + return; + } + const fontOpts = toFont(opts.font); + const lineHeight = fontOpts.lineHeight; + const offset = lineHeight / 2 + this._padding.top; + const {titleX, titleY, maxWidth, rotation} = this._drawArgs(offset); + renderText(ctx, opts.text, 0, 0, fontOpts, { + color: opts.color, + maxWidth, + rotation, + textAlign: _toLeftRightCenter(opts.align), + textBaseline: 'middle', + translation: [titleX, titleY], + }); + } +} +function createTitle(chart, titleOpts) { + const title = new Title({ + ctx: chart.ctx, + options: titleOpts, + chart + }); + layouts.configure(chart, title, titleOpts); + layouts.addBox(chart, title); + chart.titleBlock = title; +} +var plugin_title = { + id: 'title', + _element: Title, + start(chart, _args, options) { + createTitle(chart, options); + }, + stop(chart) { + const titleBlock = chart.titleBlock; + layouts.removeBox(chart, titleBlock); + delete chart.titleBlock; + }, + beforeUpdate(chart, _args, options) { + const title = chart.titleBlock; + layouts.configure(chart, title, options); + title.options = options; + }, + defaults: { + align: 'center', + display: false, + font: { + weight: 'bold', + }, + fullSize: true, + padding: 10, + position: 'top', + text: '', + weight: 2000 + }, + defaultRoutes: { + color: 'color' + }, + descriptors: { + _scriptable: true, + _indexable: false, + }, +}; + +const map = new WeakMap(); +var plugin_subtitle = { + id: 'subtitle', + start(chart, _args, options) { + const title = new Title({ + ctx: chart.ctx, + options, + chart + }); + layouts.configure(chart, title, options); + layouts.addBox(chart, title); + map.set(chart, title); + }, + stop(chart) { + layouts.removeBox(chart, map.get(chart)); + map.delete(chart); + }, + beforeUpdate(chart, _args, options) { + const title = map.get(chart); + layouts.configure(chart, title, options); + title.options = options; + }, + defaults: { + align: 'center', + display: false, + font: { + weight: 'normal', + }, + fullSize: true, + padding: 0, + position: 'top', + text: '', + weight: 1500 + }, + defaultRoutes: { + color: 'color' + }, + descriptors: { + _scriptable: true, + _indexable: false, + }, +}; + +const positioners = { + average(items) { + if (!items.length) { + return false; + } + let i, len; + let x = 0; + let y = 0; + let count = 0; + for (i = 0, len = items.length; i < len; ++i) { + const el = items[i].element; + if (el && el.hasValue()) { + const pos = el.tooltipPosition(); + x += pos.x; + y += pos.y; + ++count; + } + } + return { + x: x / count, + y: y / count + }; + }, + nearest(items, eventPosition) { + if (!items.length) { + return false; + } + let x = eventPosition.x; + let y = eventPosition.y; + let minDistance = Number.POSITIVE_INFINITY; + let i, len, nearestElement; + for (i = 0, len = items.length; i < len; ++i) { + const el = items[i].element; + if (el && el.hasValue()) { + const center = el.getCenterPoint(); + const d = distanceBetweenPoints(eventPosition, center); + if (d < minDistance) { + minDistance = d; + nearestElement = el; + } + } + } + if (nearestElement) { + const tp = nearestElement.tooltipPosition(); + x = tp.x; + y = tp.y; + } + return { + x, + y + }; + } +}; +function pushOrConcat(base, toPush) { + if (toPush) { + if (isArray(toPush)) { + Array.prototype.push.apply(base, toPush); + } else { + base.push(toPush); + } + } + return base; +} +function splitNewlines(str) { + if ((typeof str === 'string' || str instanceof String) && str.indexOf('\n') > -1) { + return str.split('\n'); + } + return str; +} +function createTooltipItem(chart, item) { + const {element, datasetIndex, index} = item; + const controller = chart.getDatasetMeta(datasetIndex).controller; + const {label, value} = controller.getLabelAndValue(index); + return { + chart, + label, + parsed: controller.getParsed(index), + raw: chart.data.datasets[datasetIndex].data[index], + formattedValue: value, + dataset: controller.getDataset(), + dataIndex: index, + datasetIndex, + element + }; +} +function getTooltipSize(tooltip, options) { + const ctx = tooltip.chart.ctx; + const {body, footer, title} = tooltip; + const {boxWidth, boxHeight} = options; + const bodyFont = toFont(options.bodyFont); + const titleFont = toFont(options.titleFont); + const footerFont = toFont(options.footerFont); + const titleLineCount = title.length; + const footerLineCount = footer.length; + const bodyLineItemCount = body.length; + const padding = toPadding(options.padding); + let height = padding.height; + let width = 0; + let combinedBodyLength = body.reduce((count, bodyItem) => count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length, 0); + combinedBodyLength += tooltip.beforeBody.length + tooltip.afterBody.length; + if (titleLineCount) { + height += titleLineCount * titleFont.lineHeight + + (titleLineCount - 1) * options.titleSpacing + + options.titleMarginBottom; + } + if (combinedBodyLength) { + const bodyLineHeight = options.displayColors ? Math.max(boxHeight, bodyFont.lineHeight) : bodyFont.lineHeight; + height += bodyLineItemCount * bodyLineHeight + + (combinedBodyLength - bodyLineItemCount) * bodyFont.lineHeight + + (combinedBodyLength - 1) * options.bodySpacing; + } + if (footerLineCount) { + height += options.footerMarginTop + + footerLineCount * footerFont.lineHeight + + (footerLineCount - 1) * options.footerSpacing; + } + let widthPadding = 0; + const maxLineWidth = function(line) { + width = Math.max(width, ctx.measureText(line).width + widthPadding); + }; + ctx.save(); + ctx.font = titleFont.string; + each(tooltip.title, maxLineWidth); + ctx.font = bodyFont.string; + each(tooltip.beforeBody.concat(tooltip.afterBody), maxLineWidth); + widthPadding = options.displayColors ? (boxWidth + 2 + options.boxPadding) : 0; + each(body, (bodyItem) => { + each(bodyItem.before, maxLineWidth); + each(bodyItem.lines, maxLineWidth); + each(bodyItem.after, maxLineWidth); + }); + widthPadding = 0; + ctx.font = footerFont.string; + each(tooltip.footer, maxLineWidth); + ctx.restore(); + width += padding.width; + return {width, height}; +} +function determineYAlign(chart, size) { + const {y, height} = size; + if (y < height / 2) { + return 'top'; + } else if (y > (chart.height - height / 2)) { + return 'bottom'; + } + return 'center'; +} +function doesNotFitWithAlign(xAlign, chart, options, size) { + const {x, width} = size; + const caret = options.caretSize + options.caretPadding; + if (xAlign === 'left' && x + width + caret > chart.width) { + return true; + } + if (xAlign === 'right' && x - width - caret < 0) { + return true; + } +} +function determineXAlign(chart, options, size, yAlign) { + const {x, width} = size; + const {width: chartWidth, chartArea: {left, right}} = chart; + let xAlign = 'center'; + if (yAlign === 'center') { + xAlign = x <= (left + right) / 2 ? 'left' : 'right'; + } else if (x <= width / 2) { + xAlign = 'left'; + } else if (x >= chartWidth - width / 2) { + xAlign = 'right'; + } + if (doesNotFitWithAlign(xAlign, chart, options, size)) { + xAlign = 'center'; + } + return xAlign; +} +function determineAlignment(chart, options, size) { + const yAlign = size.yAlign || options.yAlign || determineYAlign(chart, size); + return { + xAlign: size.xAlign || options.xAlign || determineXAlign(chart, options, size, yAlign), + yAlign + }; +} +function alignX(size, xAlign) { + let {x, width} = size; + if (xAlign === 'right') { + x -= width; + } else if (xAlign === 'center') { + x -= (width / 2); + } + return x; +} +function alignY(size, yAlign, paddingAndSize) { + let {y, height} = size; + if (yAlign === 'top') { + y += paddingAndSize; + } else if (yAlign === 'bottom') { + y -= height + paddingAndSize; + } else { + y -= (height / 2); + } + return y; +} +function getBackgroundPoint(options, size, alignment, chart) { + const {caretSize, caretPadding, cornerRadius} = options; + const {xAlign, yAlign} = alignment; + const paddingAndSize = caretSize + caretPadding; + const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(cornerRadius); + let x = alignX(size, xAlign); + const y = alignY(size, yAlign, paddingAndSize); + if (yAlign === 'center') { + if (xAlign === 'left') { + x += paddingAndSize; + } else if (xAlign === 'right') { + x -= paddingAndSize; + } + } else if (xAlign === 'left') { + x -= Math.max(topLeft, bottomLeft) + caretSize; + } else if (xAlign === 'right') { + x += Math.max(topRight, bottomRight) + caretSize; + } + return { + x: _limitValue(x, 0, chart.width - size.width), + y: _limitValue(y, 0, chart.height - size.height) + }; +} +function getAlignedX(tooltip, align, options) { + const padding = toPadding(options.padding); + return align === 'center' + ? tooltip.x + tooltip.width / 2 + : align === 'right' + ? tooltip.x + tooltip.width - padding.right + : tooltip.x + padding.left; +} +function getBeforeAfterBodyLines(callback) { + return pushOrConcat([], splitNewlines(callback)); +} +function createTooltipContext(parent, tooltip, tooltipItems) { + return createContext(parent, { + tooltip, + tooltipItems, + type: 'tooltip' + }); +} +function overrideCallbacks(callbacks, context) { + const override = context && context.dataset && context.dataset.tooltip && context.dataset.tooltip.callbacks; + return override ? callbacks.override(override) : callbacks; +} +class Tooltip extends Element { + constructor(config) { + super(); + this.opacity = 0; + this._active = []; + this._eventPosition = undefined; + this._size = undefined; + this._cachedAnimations = undefined; + this._tooltipItems = []; + this.$animations = undefined; + this.$context = undefined; + this.chart = config.chart || config._chart; + this._chart = this.chart; + this.options = config.options; + this.dataPoints = undefined; + this.title = undefined; + this.beforeBody = undefined; + this.body = undefined; + this.afterBody = undefined; + this.footer = undefined; + this.xAlign = undefined; + this.yAlign = undefined; + this.x = undefined; + this.y = undefined; + this.height = undefined; + this.width = undefined; + this.caretX = undefined; + this.caretY = undefined; + this.labelColors = undefined; + this.labelPointStyles = undefined; + this.labelTextColors = undefined; + } + initialize(options) { + this.options = options; + this._cachedAnimations = undefined; + this.$context = undefined; + } + _resolveAnimations() { + const cached = this._cachedAnimations; + if (cached) { + return cached; + } + const chart = this.chart; + const options = this.options.setContext(this.getContext()); + const opts = options.enabled && chart.options.animation && options.animations; + const animations = new Animations(this.chart, opts); + if (opts._cacheable) { + this._cachedAnimations = Object.freeze(animations); + } + return animations; + } + getContext() { + return this.$context || + (this.$context = createTooltipContext(this.chart.getContext(), this, this._tooltipItems)); + } + getTitle(context, options) { + const {callbacks} = options; + const beforeTitle = callbacks.beforeTitle.apply(this, [context]); + const title = callbacks.title.apply(this, [context]); + const afterTitle = callbacks.afterTitle.apply(this, [context]); + let lines = []; + lines = pushOrConcat(lines, splitNewlines(beforeTitle)); + lines = pushOrConcat(lines, splitNewlines(title)); + lines = pushOrConcat(lines, splitNewlines(afterTitle)); + return lines; + } + getBeforeBody(tooltipItems, options) { + return getBeforeAfterBodyLines(options.callbacks.beforeBody.apply(this, [tooltipItems])); + } + getBody(tooltipItems, options) { + const {callbacks} = options; + const bodyItems = []; + each(tooltipItems, (context) => { + const bodyItem = { + before: [], + lines: [], + after: [] + }; + const scoped = overrideCallbacks(callbacks, context); + pushOrConcat(bodyItem.before, splitNewlines(scoped.beforeLabel.call(this, context))); + pushOrConcat(bodyItem.lines, scoped.label.call(this, context)); + pushOrConcat(bodyItem.after, splitNewlines(scoped.afterLabel.call(this, context))); + bodyItems.push(bodyItem); + }); + return bodyItems; + } + getAfterBody(tooltipItems, options) { + return getBeforeAfterBodyLines(options.callbacks.afterBody.apply(this, [tooltipItems])); + } + getFooter(tooltipItems, options) { + const {callbacks} = options; + const beforeFooter = callbacks.beforeFooter.apply(this, [tooltipItems]); + const footer = callbacks.footer.apply(this, [tooltipItems]); + const afterFooter = callbacks.afterFooter.apply(this, [tooltipItems]); + let lines = []; + lines = pushOrConcat(lines, splitNewlines(beforeFooter)); + lines = pushOrConcat(lines, splitNewlines(footer)); + lines = pushOrConcat(lines, splitNewlines(afterFooter)); + return lines; + } + _createItems(options) { + const active = this._active; + const data = this.chart.data; + const labelColors = []; + const labelPointStyles = []; + const labelTextColors = []; + let tooltipItems = []; + let i, len; + for (i = 0, len = active.length; i < len; ++i) { + tooltipItems.push(createTooltipItem(this.chart, active[i])); + } + if (options.filter) { + tooltipItems = tooltipItems.filter((element, index, array) => options.filter(element, index, array, data)); + } + if (options.itemSort) { + tooltipItems = tooltipItems.sort((a, b) => options.itemSort(a, b, data)); + } + each(tooltipItems, (context) => { + const scoped = overrideCallbacks(options.callbacks, context); + labelColors.push(scoped.labelColor.call(this, context)); + labelPointStyles.push(scoped.labelPointStyle.call(this, context)); + labelTextColors.push(scoped.labelTextColor.call(this, context)); + }); + this.labelColors = labelColors; + this.labelPointStyles = labelPointStyles; + this.labelTextColors = labelTextColors; + this.dataPoints = tooltipItems; + return tooltipItems; + } + update(changed, replay) { + const options = this.options.setContext(this.getContext()); + const active = this._active; + let properties; + let tooltipItems = []; + if (!active.length) { + if (this.opacity !== 0) { + properties = { + opacity: 0 + }; + } + } else { + const position = positioners[options.position].call(this, active, this._eventPosition); + tooltipItems = this._createItems(options); + this.title = this.getTitle(tooltipItems, options); + this.beforeBody = this.getBeforeBody(tooltipItems, options); + this.body = this.getBody(tooltipItems, options); + this.afterBody = this.getAfterBody(tooltipItems, options); + this.footer = this.getFooter(tooltipItems, options); + const size = this._size = getTooltipSize(this, options); + const positionAndSize = Object.assign({}, position, size); + const alignment = determineAlignment(this.chart, options, positionAndSize); + const backgroundPoint = getBackgroundPoint(options, positionAndSize, alignment, this.chart); + this.xAlign = alignment.xAlign; + this.yAlign = alignment.yAlign; + properties = { + opacity: 1, + x: backgroundPoint.x, + y: backgroundPoint.y, + width: size.width, + height: size.height, + caretX: position.x, + caretY: position.y + }; + } + this._tooltipItems = tooltipItems; + this.$context = undefined; + if (properties) { + this._resolveAnimations().update(this, properties); + } + if (changed && options.external) { + options.external.call(this, {chart: this.chart, tooltip: this, replay}); + } + } + drawCaret(tooltipPoint, ctx, size, options) { + const caretPosition = this.getCaretPosition(tooltipPoint, size, options); + ctx.lineTo(caretPosition.x1, caretPosition.y1); + ctx.lineTo(caretPosition.x2, caretPosition.y2); + ctx.lineTo(caretPosition.x3, caretPosition.y3); + } + getCaretPosition(tooltipPoint, size, options) { + const {xAlign, yAlign} = this; + const {caretSize, cornerRadius} = options; + const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(cornerRadius); + const {x: ptX, y: ptY} = tooltipPoint; + const {width, height} = size; + let x1, x2, x3, y1, y2, y3; + if (yAlign === 'center') { + y2 = ptY + (height / 2); + if (xAlign === 'left') { + x1 = ptX; + x2 = x1 - caretSize; + y1 = y2 + caretSize; + y3 = y2 - caretSize; + } else { + x1 = ptX + width; + x2 = x1 + caretSize; + y1 = y2 - caretSize; + y3 = y2 + caretSize; + } + x3 = x1; + } else { + if (xAlign === 'left') { + x2 = ptX + Math.max(topLeft, bottomLeft) + (caretSize); + } else if (xAlign === 'right') { + x2 = ptX + width - Math.max(topRight, bottomRight) - caretSize; + } else { + x2 = this.caretX; + } + if (yAlign === 'top') { + y1 = ptY; + y2 = y1 - caretSize; + x1 = x2 - caretSize; + x3 = x2 + caretSize; + } else { + y1 = ptY + height; + y2 = y1 + caretSize; + x1 = x2 + caretSize; + x3 = x2 - caretSize; + } + y3 = y1; + } + return {x1, x2, x3, y1, y2, y3}; + } + drawTitle(pt, ctx, options) { + const title = this.title; + const length = title.length; + let titleFont, titleSpacing, i; + if (length) { + const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); + pt.x = getAlignedX(this, options.titleAlign, options); + ctx.textAlign = rtlHelper.textAlign(options.titleAlign); + ctx.textBaseline = 'middle'; + titleFont = toFont(options.titleFont); + titleSpacing = options.titleSpacing; + ctx.fillStyle = options.titleColor; + ctx.font = titleFont.string; + for (i = 0; i < length; ++i) { + ctx.fillText(title[i], rtlHelper.x(pt.x), pt.y + titleFont.lineHeight / 2); + pt.y += titleFont.lineHeight + titleSpacing; + if (i + 1 === length) { + pt.y += options.titleMarginBottom - titleSpacing; + } + } + } + } + _drawColorBox(ctx, pt, i, rtlHelper, options) { + const labelColors = this.labelColors[i]; + const labelPointStyle = this.labelPointStyles[i]; + const {boxHeight, boxWidth, boxPadding} = options; + const bodyFont = toFont(options.bodyFont); + const colorX = getAlignedX(this, 'left', options); + const rtlColorX = rtlHelper.x(colorX); + const yOffSet = boxHeight < bodyFont.lineHeight ? (bodyFont.lineHeight - boxHeight) / 2 : 0; + const colorY = pt.y + yOffSet; + if (options.usePointStyle) { + const drawOptions = { + radius: Math.min(boxWidth, boxHeight) / 2, + pointStyle: labelPointStyle.pointStyle, + rotation: labelPointStyle.rotation, + borderWidth: 1 + }; + const centerX = rtlHelper.leftForLtr(rtlColorX, boxWidth) + boxWidth / 2; + const centerY = colorY + boxHeight / 2; + ctx.strokeStyle = options.multiKeyBackground; + ctx.fillStyle = options.multiKeyBackground; + drawPoint(ctx, drawOptions, centerX, centerY); + ctx.strokeStyle = labelColors.borderColor; + ctx.fillStyle = labelColors.backgroundColor; + drawPoint(ctx, drawOptions, centerX, centerY); + } else { + ctx.lineWidth = labelColors.borderWidth || 1; + ctx.strokeStyle = labelColors.borderColor; + ctx.setLineDash(labelColors.borderDash || []); + ctx.lineDashOffset = labelColors.borderDashOffset || 0; + const outerX = rtlHelper.leftForLtr(rtlColorX, boxWidth - boxPadding); + const innerX = rtlHelper.leftForLtr(rtlHelper.xPlus(rtlColorX, 1), boxWidth - boxPadding - 2); + const borderRadius = toTRBLCorners(labelColors.borderRadius); + if (Object.values(borderRadius).some(v => v !== 0)) { + ctx.beginPath(); + ctx.fillStyle = options.multiKeyBackground; + addRoundedRectPath(ctx, { + x: outerX, + y: colorY, + w: boxWidth, + h: boxHeight, + radius: borderRadius, + }); + ctx.fill(); + ctx.stroke(); + ctx.fillStyle = labelColors.backgroundColor; + ctx.beginPath(); + addRoundedRectPath(ctx, { + x: innerX, + y: colorY + 1, + w: boxWidth - 2, + h: boxHeight - 2, + radius: borderRadius, + }); + ctx.fill(); + } else { + ctx.fillStyle = options.multiKeyBackground; + ctx.fillRect(outerX, colorY, boxWidth, boxHeight); + ctx.strokeRect(outerX, colorY, boxWidth, boxHeight); + ctx.fillStyle = labelColors.backgroundColor; + ctx.fillRect(innerX, colorY + 1, boxWidth - 2, boxHeight - 2); + } + } + ctx.fillStyle = this.labelTextColors[i]; + } + drawBody(pt, ctx, options) { + const {body} = this; + const {bodySpacing, bodyAlign, displayColors, boxHeight, boxWidth, boxPadding} = options; + const bodyFont = toFont(options.bodyFont); + let bodyLineHeight = bodyFont.lineHeight; + let xLinePadding = 0; + const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); + const fillLineOfText = function(line) { + ctx.fillText(line, rtlHelper.x(pt.x + xLinePadding), pt.y + bodyLineHeight / 2); + pt.y += bodyLineHeight + bodySpacing; + }; + const bodyAlignForCalculation = rtlHelper.textAlign(bodyAlign); + let bodyItem, textColor, lines, i, j, ilen, jlen; + ctx.textAlign = bodyAlign; + ctx.textBaseline = 'middle'; + ctx.font = bodyFont.string; + pt.x = getAlignedX(this, bodyAlignForCalculation, options); + ctx.fillStyle = options.bodyColor; + each(this.beforeBody, fillLineOfText); + xLinePadding = displayColors && bodyAlignForCalculation !== 'right' + ? bodyAlign === 'center' ? (boxWidth / 2 + boxPadding) : (boxWidth + 2 + boxPadding) + : 0; + for (i = 0, ilen = body.length; i < ilen; ++i) { + bodyItem = body[i]; + textColor = this.labelTextColors[i]; + ctx.fillStyle = textColor; + each(bodyItem.before, fillLineOfText); + lines = bodyItem.lines; + if (displayColors && lines.length) { + this._drawColorBox(ctx, pt, i, rtlHelper, options); + bodyLineHeight = Math.max(bodyFont.lineHeight, boxHeight); + } + for (j = 0, jlen = lines.length; j < jlen; ++j) { + fillLineOfText(lines[j]); + bodyLineHeight = bodyFont.lineHeight; + } + each(bodyItem.after, fillLineOfText); + } + xLinePadding = 0; + bodyLineHeight = bodyFont.lineHeight; + each(this.afterBody, fillLineOfText); + pt.y -= bodySpacing; + } + drawFooter(pt, ctx, options) { + const footer = this.footer; + const length = footer.length; + let footerFont, i; + if (length) { + const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); + pt.x = getAlignedX(this, options.footerAlign, options); + pt.y += options.footerMarginTop; + ctx.textAlign = rtlHelper.textAlign(options.footerAlign); + ctx.textBaseline = 'middle'; + footerFont = toFont(options.footerFont); + ctx.fillStyle = options.footerColor; + ctx.font = footerFont.string; + for (i = 0; i < length; ++i) { + ctx.fillText(footer[i], rtlHelper.x(pt.x), pt.y + footerFont.lineHeight / 2); + pt.y += footerFont.lineHeight + options.footerSpacing; + } + } + } + drawBackground(pt, ctx, tooltipSize, options) { + const {xAlign, yAlign} = this; + const {x, y} = pt; + const {width, height} = tooltipSize; + const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(options.cornerRadius); + ctx.fillStyle = options.backgroundColor; + ctx.strokeStyle = options.borderColor; + ctx.lineWidth = options.borderWidth; + ctx.beginPath(); + ctx.moveTo(x + topLeft, y); + if (yAlign === 'top') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x + width - topRight, y); + ctx.quadraticCurveTo(x + width, y, x + width, y + topRight); + if (yAlign === 'center' && xAlign === 'right') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x + width, y + height - bottomRight); + ctx.quadraticCurveTo(x + width, y + height, x + width - bottomRight, y + height); + if (yAlign === 'bottom') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x + bottomLeft, y + height); + ctx.quadraticCurveTo(x, y + height, x, y + height - bottomLeft); + if (yAlign === 'center' && xAlign === 'left') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x, y + topLeft); + ctx.quadraticCurveTo(x, y, x + topLeft, y); + ctx.closePath(); + ctx.fill(); + if (options.borderWidth > 0) { + ctx.stroke(); + } + } + _updateAnimationTarget(options) { + const chart = this.chart; + const anims = this.$animations; + const animX = anims && anims.x; + const animY = anims && anims.y; + if (animX || animY) { + const position = positioners[options.position].call(this, this._active, this._eventPosition); + if (!position) { + return; + } + const size = this._size = getTooltipSize(this, options); + const positionAndSize = Object.assign({}, position, this._size); + const alignment = determineAlignment(chart, options, positionAndSize); + const point = getBackgroundPoint(options, positionAndSize, alignment, chart); + if (animX._to !== point.x || animY._to !== point.y) { + this.xAlign = alignment.xAlign; + this.yAlign = alignment.yAlign; + this.width = size.width; + this.height = size.height; + this.caretX = position.x; + this.caretY = position.y; + this._resolveAnimations().update(this, point); + } + } + } + draw(ctx) { + const options = this.options.setContext(this.getContext()); + let opacity = this.opacity; + if (!opacity) { + return; + } + this._updateAnimationTarget(options); + const tooltipSize = { + width: this.width, + height: this.height + }; + const pt = { + x: this.x, + y: this.y + }; + opacity = Math.abs(opacity) < 1e-3 ? 0 : opacity; + const padding = toPadding(options.padding); + const hasTooltipContent = this.title.length || this.beforeBody.length || this.body.length || this.afterBody.length || this.footer.length; + if (options.enabled && hasTooltipContent) { + ctx.save(); + ctx.globalAlpha = opacity; + this.drawBackground(pt, ctx, tooltipSize, options); + overrideTextDirection(ctx, options.textDirection); + pt.y += padding.top; + this.drawTitle(pt, ctx, options); + this.drawBody(pt, ctx, options); + this.drawFooter(pt, ctx, options); + restoreTextDirection(ctx, options.textDirection); + ctx.restore(); + } + } + getActiveElements() { + return this._active || []; + } + setActiveElements(activeElements, eventPosition) { + const lastActive = this._active; + const active = activeElements.map(({datasetIndex, index}) => { + const meta = this.chart.getDatasetMeta(datasetIndex); + if (!meta) { + throw new Error('Cannot find a dataset at index ' + datasetIndex); + } + return { + datasetIndex, + element: meta.data[index], + index, + }; + }); + const changed = !_elementsEqual(lastActive, active); + const positionChanged = this._positionChanged(active, eventPosition); + if (changed || positionChanged) { + this._active = active; + this._eventPosition = eventPosition; + this._ignoreReplayEvents = true; + this.update(true); + } + } + handleEvent(e, replay, inChartArea = true) { + if (replay && this._ignoreReplayEvents) { + return false; + } + this._ignoreReplayEvents = false; + const options = this.options; + const lastActive = this._active || []; + const active = this._getActiveElements(e, lastActive, replay, inChartArea); + const positionChanged = this._positionChanged(active, e); + const changed = replay || !_elementsEqual(active, lastActive) || positionChanged; + if (changed) { + this._active = active; + if (options.enabled || options.external) { + this._eventPosition = { + x: e.x, + y: e.y + }; + this.update(true, replay); + } + } + return changed; + } + _getActiveElements(e, lastActive, replay, inChartArea) { + const options = this.options; + if (e.type === 'mouseout') { + return []; + } + if (!inChartArea) { + return lastActive; + } + const active = this.chart.getElementsAtEventForMode(e, options.mode, options, replay); + if (options.reverse) { + active.reverse(); + } + return active; + } + _positionChanged(active, e) { + const {caretX, caretY, options} = this; + const position = positioners[options.position].call(this, active, e); + return position !== false && (caretX !== position.x || caretY !== position.y); + } +} +Tooltip.positioners = positioners; +var plugin_tooltip = { + id: 'tooltip', + _element: Tooltip, + positioners, + afterInit(chart, _args, options) { + if (options) { + chart.tooltip = new Tooltip({chart, options}); + } + }, + beforeUpdate(chart, _args, options) { + if (chart.tooltip) { + chart.tooltip.initialize(options); + } + }, + reset(chart, _args, options) { + if (chart.tooltip) { + chart.tooltip.initialize(options); + } + }, + afterDraw(chart) { + const tooltip = chart.tooltip; + const args = { + tooltip + }; + if (chart.notifyPlugins('beforeTooltipDraw', args) === false) { + return; + } + if (tooltip) { + tooltip.draw(chart.ctx); + } + chart.notifyPlugins('afterTooltipDraw', args); + }, + afterEvent(chart, args) { + if (chart.tooltip) { + const useFinalPosition = args.replay; + if (chart.tooltip.handleEvent(args.event, useFinalPosition, args.inChartArea)) { + args.changed = true; + } + } + }, + defaults: { + enabled: true, + external: null, + position: 'average', + backgroundColor: 'rgba(0,0,0,0.8)', + titleColor: '#fff', + titleFont: { + weight: 'bold', + }, + titleSpacing: 2, + titleMarginBottom: 6, + titleAlign: 'left', + bodyColor: '#fff', + bodySpacing: 2, + bodyFont: { + }, + bodyAlign: 'left', + footerColor: '#fff', + footerSpacing: 2, + footerMarginTop: 6, + footerFont: { + weight: 'bold', + }, + footerAlign: 'left', + padding: 6, + caretPadding: 2, + caretSize: 5, + cornerRadius: 6, + boxHeight: (ctx, opts) => opts.bodyFont.size, + boxWidth: (ctx, opts) => opts.bodyFont.size, + multiKeyBackground: '#fff', + displayColors: true, + boxPadding: 0, + borderColor: 'rgba(0,0,0,0)', + borderWidth: 0, + animation: { + duration: 400, + easing: 'easeOutQuart', + }, + animations: { + numbers: { + type: 'number', + properties: ['x', 'y', 'width', 'height', 'caretX', 'caretY'], + }, + opacity: { + easing: 'linear', + duration: 200 + } + }, + callbacks: { + beforeTitle: noop, + title(tooltipItems) { + if (tooltipItems.length > 0) { + const item = tooltipItems[0]; + const labels = item.chart.data.labels; + const labelCount = labels ? labels.length : 0; + if (this && this.options && this.options.mode === 'dataset') { + return item.dataset.label || ''; + } else if (item.label) { + return item.label; + } else if (labelCount > 0 && item.dataIndex < labelCount) { + return labels[item.dataIndex]; + } + } + return ''; + }, + afterTitle: noop, + beforeBody: noop, + beforeLabel: noop, + label(tooltipItem) { + if (this && this.options && this.options.mode === 'dataset') { + return tooltipItem.label + ': ' + tooltipItem.formattedValue || tooltipItem.formattedValue; + } + let label = tooltipItem.dataset.label || ''; + if (label) { + label += ': '; + } + const value = tooltipItem.formattedValue; + if (!isNullOrUndef(value)) { + label += value; + } + return label; + }, + labelColor(tooltipItem) { + const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex); + const options = meta.controller.getStyle(tooltipItem.dataIndex); + return { + borderColor: options.borderColor, + backgroundColor: options.backgroundColor, + borderWidth: options.borderWidth, + borderDash: options.borderDash, + borderDashOffset: options.borderDashOffset, + borderRadius: 0, + }; + }, + labelTextColor() { + return this.options.bodyColor; + }, + labelPointStyle(tooltipItem) { + const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex); + const options = meta.controller.getStyle(tooltipItem.dataIndex); + return { + pointStyle: options.pointStyle, + rotation: options.rotation, + }; + }, + afterLabel: noop, + afterBody: noop, + beforeFooter: noop, + footer: noop, + afterFooter: noop + } + }, + defaultRoutes: { + bodyFont: 'font', + footerFont: 'font', + titleFont: 'font' + }, + descriptors: { + _scriptable: (name) => name !== 'filter' && name !== 'itemSort' && name !== 'external', + _indexable: false, + callbacks: { + _scriptable: false, + _indexable: false, + }, + animation: { + _fallback: false + }, + animations: { + _fallback: 'animation' + } + }, + additionalOptionScopes: ['interaction'] +}; + +var plugins = /*#__PURE__*/Object.freeze({ +__proto__: null, +Decimation: plugin_decimation, +Filler: plugin_filler, +Legend: plugin_legend, +SubTitle: plugin_subtitle, +Title: plugin_title, +Tooltip: plugin_tooltip +}); + +const addIfString = (labels, raw, index, addedLabels) => { + if (typeof raw === 'string') { + index = labels.push(raw) - 1; + addedLabels.unshift({index, label: raw}); + } else if (isNaN(raw)) { + index = null; + } + return index; +}; +function findOrAddLabel(labels, raw, index, addedLabels) { + const first = labels.indexOf(raw); + if (first === -1) { + return addIfString(labels, raw, index, addedLabels); + } + const last = labels.lastIndexOf(raw); + return first !== last ? index : first; +} +const validIndex = (index, max) => index === null ? null : _limitValue(Math.round(index), 0, max); +class CategoryScale extends Scale { + constructor(cfg) { + super(cfg); + this._startValue = undefined; + this._valueRange = 0; + this._addedLabels = []; + } + init(scaleOptions) { + const added = this._addedLabels; + if (added.length) { + const labels = this.getLabels(); + for (const {index, label} of added) { + if (labels[index] === label) { + labels.splice(index, 1); + } + } + this._addedLabels = []; + } + super.init(scaleOptions); + } + parse(raw, index) { + if (isNullOrUndef(raw)) { + return null; + } + const labels = this.getLabels(); + index = isFinite(index) && labels[index] === raw ? index + : findOrAddLabel(labels, raw, valueOrDefault(index, raw), this._addedLabels); + return validIndex(index, labels.length - 1); + } + determineDataLimits() { + const {minDefined, maxDefined} = this.getUserBounds(); + let {min, max} = this.getMinMax(true); + if (this.options.bounds === 'ticks') { + if (!minDefined) { + min = 0; + } + if (!maxDefined) { + max = this.getLabels().length - 1; + } + } + this.min = min; + this.max = max; + } + buildTicks() { + const min = this.min; + const max = this.max; + const offset = this.options.offset; + const ticks = []; + let labels = this.getLabels(); + labels = (min === 0 && max === labels.length - 1) ? labels : labels.slice(min, max + 1); + this._valueRange = Math.max(labels.length - (offset ? 0 : 1), 1); + this._startValue = this.min - (offset ? 0.5 : 0); + for (let value = min; value <= max; value++) { + ticks.push({value}); + } + return ticks; + } + getLabelForValue(value) { + const labels = this.getLabels(); + if (value >= 0 && value < labels.length) { + return labels[value]; + } + return value; + } + configure() { + super.configure(); + if (!this.isHorizontal()) { + this._reversePixels = !this._reversePixels; + } + } + getPixelForValue(value) { + if (typeof value !== 'number') { + value = this.parse(value); + } + return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange); + } + getPixelForTick(index) { + const ticks = this.ticks; + if (index < 0 || index > ticks.length - 1) { + return null; + } + return this.getPixelForValue(ticks[index].value); + } + getValueForPixel(pixel) { + return Math.round(this._startValue + this.getDecimalForPixel(pixel) * this._valueRange); + } + getBasePixel() { + return this.bottom; + } +} +CategoryScale.id = 'category'; +CategoryScale.defaults = { + ticks: { + callback: CategoryScale.prototype.getLabelForValue + } +}; + +function generateTicks$1(generationOptions, dataRange) { + const ticks = []; + const MIN_SPACING = 1e-14; + const {bounds, step, min, max, precision, count, maxTicks, maxDigits, includeBounds} = generationOptions; + const unit = step || 1; + const maxSpaces = maxTicks - 1; + const {min: rmin, max: rmax} = dataRange; + const minDefined = !isNullOrUndef(min); + const maxDefined = !isNullOrUndef(max); + const countDefined = !isNullOrUndef(count); + const minSpacing = (rmax - rmin) / (maxDigits + 1); + let spacing = niceNum((rmax - rmin) / maxSpaces / unit) * unit; + let factor, niceMin, niceMax, numSpaces; + if (spacing < MIN_SPACING && !minDefined && !maxDefined) { + return [{value: rmin}, {value: rmax}]; + } + numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing); + if (numSpaces > maxSpaces) { + spacing = niceNum(numSpaces * spacing / maxSpaces / unit) * unit; + } + if (!isNullOrUndef(precision)) { + factor = Math.pow(10, precision); + spacing = Math.ceil(spacing * factor) / factor; + } + if (bounds === 'ticks') { + niceMin = Math.floor(rmin / spacing) * spacing; + niceMax = Math.ceil(rmax / spacing) * spacing; + } else { + niceMin = rmin; + niceMax = rmax; + } + if (minDefined && maxDefined && step && almostWhole((max - min) / step, spacing / 1000)) { + numSpaces = Math.round(Math.min((max - min) / spacing, maxTicks)); + spacing = (max - min) / numSpaces; + niceMin = min; + niceMax = max; + } else if (countDefined) { + niceMin = minDefined ? min : niceMin; + niceMax = maxDefined ? max : niceMax; + numSpaces = count - 1; + spacing = (niceMax - niceMin) / numSpaces; + } else { + numSpaces = (niceMax - niceMin) / spacing; + if (almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) { + numSpaces = Math.round(numSpaces); + } else { + numSpaces = Math.ceil(numSpaces); + } + } + const decimalPlaces = Math.max( + _decimalPlaces(spacing), + _decimalPlaces(niceMin) + ); + factor = Math.pow(10, isNullOrUndef(precision) ? decimalPlaces : precision); + niceMin = Math.round(niceMin * factor) / factor; + niceMax = Math.round(niceMax * factor) / factor; + let j = 0; + if (minDefined) { + if (includeBounds && niceMin !== min) { + ticks.push({value: min}); + if (niceMin < min) { + j++; + } + if (almostEquals(Math.round((niceMin + j * spacing) * factor) / factor, min, relativeLabelSize(min, minSpacing, generationOptions))) { + j++; + } + } else if (niceMin < min) { + j++; + } + } + for (; j < numSpaces; ++j) { + ticks.push({value: Math.round((niceMin + j * spacing) * factor) / factor}); + } + if (maxDefined && includeBounds && niceMax !== max) { + if (ticks.length && almostEquals(ticks[ticks.length - 1].value, max, relativeLabelSize(max, minSpacing, generationOptions))) { + ticks[ticks.length - 1].value = max; + } else { + ticks.push({value: max}); + } + } else if (!maxDefined || niceMax === max) { + ticks.push({value: niceMax}); + } + return ticks; +} +function relativeLabelSize(value, minSpacing, {horizontal, minRotation}) { + const rad = toRadians(minRotation); + const ratio = (horizontal ? Math.sin(rad) : Math.cos(rad)) || 0.001; + const length = 0.75 * minSpacing * ('' + value).length; + return Math.min(minSpacing / ratio, length); +} +class LinearScaleBase extends Scale { + constructor(cfg) { + super(cfg); + this.start = undefined; + this.end = undefined; + this._startValue = undefined; + this._endValue = undefined; + this._valueRange = 0; + } + parse(raw, index) { + if (isNullOrUndef(raw)) { + return null; + } + if ((typeof raw === 'number' || raw instanceof Number) && !isFinite(+raw)) { + return null; + } + return +raw; + } + handleTickRangeOptions() { + const {beginAtZero} = this.options; + const {minDefined, maxDefined} = this.getUserBounds(); + let {min, max} = this; + const setMin = v => (min = minDefined ? min : v); + const setMax = v => (max = maxDefined ? max : v); + if (beginAtZero) { + const minSign = sign(min); + const maxSign = sign(max); + if (minSign < 0 && maxSign < 0) { + setMax(0); + } else if (minSign > 0 && maxSign > 0) { + setMin(0); + } + } + if (min === max) { + let offset = 1; + if (max >= Number.MAX_SAFE_INTEGER || min <= Number.MIN_SAFE_INTEGER) { + offset = Math.abs(max * 0.05); + } + setMax(max + offset); + if (!beginAtZero) { + setMin(min - offset); + } + } + this.min = min; + this.max = max; + } + getTickLimit() { + const tickOpts = this.options.ticks; + let {maxTicksLimit, stepSize} = tickOpts; + let maxTicks; + if (stepSize) { + maxTicks = Math.ceil(this.max / stepSize) - Math.floor(this.min / stepSize) + 1; + if (maxTicks > 1000) { + console.warn(`scales.${this.id}.ticks.stepSize: ${stepSize} would result generating up to ${maxTicks} ticks. Limiting to 1000.`); + maxTicks = 1000; + } + } else { + maxTicks = this.computeTickLimit(); + maxTicksLimit = maxTicksLimit || 11; + } + if (maxTicksLimit) { + maxTicks = Math.min(maxTicksLimit, maxTicks); + } + return maxTicks; + } + computeTickLimit() { + return Number.POSITIVE_INFINITY; + } + buildTicks() { + const opts = this.options; + const tickOpts = opts.ticks; + let maxTicks = this.getTickLimit(); + maxTicks = Math.max(2, maxTicks); + const numericGeneratorOptions = { + maxTicks, + bounds: opts.bounds, + min: opts.min, + max: opts.max, + precision: tickOpts.precision, + step: tickOpts.stepSize, + count: tickOpts.count, + maxDigits: this._maxDigits(), + horizontal: this.isHorizontal(), + minRotation: tickOpts.minRotation || 0, + includeBounds: tickOpts.includeBounds !== false + }; + const dataRange = this._range || this; + const ticks = generateTicks$1(numericGeneratorOptions, dataRange); + if (opts.bounds === 'ticks') { + _setMinAndMaxByKey(ticks, this, 'value'); + } + if (opts.reverse) { + ticks.reverse(); + this.start = this.max; + this.end = this.min; + } else { + this.start = this.min; + this.end = this.max; + } + return ticks; + } + configure() { + const ticks = this.ticks; + let start = this.min; + let end = this.max; + super.configure(); + if (this.options.offset && ticks.length) { + const offset = (end - start) / Math.max(ticks.length - 1, 1) / 2; + start -= offset; + end += offset; + } + this._startValue = start; + this._endValue = end; + this._valueRange = end - start; + } + getLabelForValue(value) { + return formatNumber(value, this.chart.options.locale, this.options.ticks.format); + } +} + +class LinearScale extends LinearScaleBase { + determineDataLimits() { + const {min, max} = this.getMinMax(true); + this.min = isNumberFinite(min) ? min : 0; + this.max = isNumberFinite(max) ? max : 1; + this.handleTickRangeOptions(); + } + computeTickLimit() { + const horizontal = this.isHorizontal(); + const length = horizontal ? this.width : this.height; + const minRotation = toRadians(this.options.ticks.minRotation); + const ratio = (horizontal ? Math.sin(minRotation) : Math.cos(minRotation)) || 0.001; + const tickFont = this._resolveTickFontOptions(0); + return Math.ceil(length / Math.min(40, tickFont.lineHeight / ratio)); + } + getPixelForValue(value) { + return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange); + } + getValueForPixel(pixel) { + return this._startValue + this.getDecimalForPixel(pixel) * this._valueRange; + } +} +LinearScale.id = 'linear'; +LinearScale.defaults = { + ticks: { + callback: Ticks.formatters.numeric + } +}; + +function isMajor(tickVal) { + const remain = tickVal / (Math.pow(10, Math.floor(log10(tickVal)))); + return remain === 1; +} +function generateTicks(generationOptions, dataRange) { + const endExp = Math.floor(log10(dataRange.max)); + const endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp)); + const ticks = []; + let tickVal = finiteOrDefault(generationOptions.min, Math.pow(10, Math.floor(log10(dataRange.min)))); + let exp = Math.floor(log10(tickVal)); + let significand = Math.floor(tickVal / Math.pow(10, exp)); + let precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1; + do { + ticks.push({value: tickVal, major: isMajor(tickVal)}); + ++significand; + if (significand === 10) { + significand = 1; + ++exp; + precision = exp >= 0 ? 1 : precision; + } + tickVal = Math.round(significand * Math.pow(10, exp) * precision) / precision; + } while (exp < endExp || (exp === endExp && significand < endSignificand)); + const lastTick = finiteOrDefault(generationOptions.max, tickVal); + ticks.push({value: lastTick, major: isMajor(tickVal)}); + return ticks; +} +class LogarithmicScale extends Scale { + constructor(cfg) { + super(cfg); + this.start = undefined; + this.end = undefined; + this._startValue = undefined; + this._valueRange = 0; + } + parse(raw, index) { + const value = LinearScaleBase.prototype.parse.apply(this, [raw, index]); + if (value === 0) { + this._zero = true; + return undefined; + } + return isNumberFinite(value) && value > 0 ? value : null; + } + determineDataLimits() { + const {min, max} = this.getMinMax(true); + this.min = isNumberFinite(min) ? Math.max(0, min) : null; + this.max = isNumberFinite(max) ? Math.max(0, max) : null; + if (this.options.beginAtZero) { + this._zero = true; + } + this.handleTickRangeOptions(); + } + handleTickRangeOptions() { + const {minDefined, maxDefined} = this.getUserBounds(); + let min = this.min; + let max = this.max; + const setMin = v => (min = minDefined ? min : v); + const setMax = v => (max = maxDefined ? max : v); + const exp = (v, m) => Math.pow(10, Math.floor(log10(v)) + m); + if (min === max) { + if (min <= 0) { + setMin(1); + setMax(10); + } else { + setMin(exp(min, -1)); + setMax(exp(max, +1)); + } + } + if (min <= 0) { + setMin(exp(max, -1)); + } + if (max <= 0) { + setMax(exp(min, +1)); + } + if (this._zero && this.min !== this._suggestedMin && min === exp(this.min, 0)) { + setMin(exp(min, -1)); + } + this.min = min; + this.max = max; + } + buildTicks() { + const opts = this.options; + const generationOptions = { + min: this._userMin, + max: this._userMax + }; + const ticks = generateTicks(generationOptions, this); + if (opts.bounds === 'ticks') { + _setMinAndMaxByKey(ticks, this, 'value'); + } + if (opts.reverse) { + ticks.reverse(); + this.start = this.max; + this.end = this.min; + } else { + this.start = this.min; + this.end = this.max; + } + return ticks; + } + getLabelForValue(value) { + return value === undefined + ? '0' + : formatNumber(value, this.chart.options.locale, this.options.ticks.format); + } + configure() { + const start = this.min; + super.configure(); + this._startValue = log10(start); + this._valueRange = log10(this.max) - log10(start); + } + getPixelForValue(value) { + if (value === undefined || value === 0) { + value = this.min; + } + if (value === null || isNaN(value)) { + return NaN; + } + return this.getPixelForDecimal(value === this.min + ? 0 + : (log10(value) - this._startValue) / this._valueRange); + } + getValueForPixel(pixel) { + const decimal = this.getDecimalForPixel(pixel); + return Math.pow(10, this._startValue + decimal * this._valueRange); + } +} +LogarithmicScale.id = 'logarithmic'; +LogarithmicScale.defaults = { + ticks: { + callback: Ticks.formatters.logarithmic, + major: { + enabled: true + } + } +}; + +function getTickBackdropHeight(opts) { + const tickOpts = opts.ticks; + if (tickOpts.display && opts.display) { + const padding = toPadding(tickOpts.backdropPadding); + return valueOrDefault(tickOpts.font && tickOpts.font.size, defaults.font.size) + padding.height; + } + return 0; +} +function measureLabelSize(ctx, font, label) { + label = isArray(label) ? label : [label]; + return { + w: _longestText(ctx, font.string, label), + h: label.length * font.lineHeight + }; +} +function determineLimits(angle, pos, size, min, max) { + if (angle === min || angle === max) { + return { + start: pos - (size / 2), + end: pos + (size / 2) + }; + } else if (angle < min || angle > max) { + return { + start: pos - size, + end: pos + }; + } + return { + start: pos, + end: pos + size + }; +} +function fitWithPointLabels(scale) { + const orig = { + l: scale.left + scale._padding.left, + r: scale.right - scale._padding.right, + t: scale.top + scale._padding.top, + b: scale.bottom - scale._padding.bottom + }; + const limits = Object.assign({}, orig); + const labelSizes = []; + const padding = []; + const valueCount = scale._pointLabels.length; + const pointLabelOpts = scale.options.pointLabels; + const additionalAngle = pointLabelOpts.centerPointLabels ? PI / valueCount : 0; + for (let i = 0; i < valueCount; i++) { + const opts = pointLabelOpts.setContext(scale.getPointLabelContext(i)); + padding[i] = opts.padding; + const pointPosition = scale.getPointPosition(i, scale.drawingArea + padding[i], additionalAngle); + const plFont = toFont(opts.font); + const textSize = measureLabelSize(scale.ctx, plFont, scale._pointLabels[i]); + labelSizes[i] = textSize; + const angleRadians = _normalizeAngle(scale.getIndexAngle(i) + additionalAngle); + const angle = Math.round(toDegrees(angleRadians)); + const hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180); + const vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270); + updateLimits(limits, orig, angleRadians, hLimits, vLimits); + } + scale.setCenterPoint( + orig.l - limits.l, + limits.r - orig.r, + orig.t - limits.t, + limits.b - orig.b + ); + scale._pointLabelItems = buildPointLabelItems(scale, labelSizes, padding); +} +function updateLimits(limits, orig, angle, hLimits, vLimits) { + const sin = Math.abs(Math.sin(angle)); + const cos = Math.abs(Math.cos(angle)); + let x = 0; + let y = 0; + if (hLimits.start < orig.l) { + x = (orig.l - hLimits.start) / sin; + limits.l = Math.min(limits.l, orig.l - x); + } else if (hLimits.end > orig.r) { + x = (hLimits.end - orig.r) / sin; + limits.r = Math.max(limits.r, orig.r + x); + } + if (vLimits.start < orig.t) { + y = (orig.t - vLimits.start) / cos; + limits.t = Math.min(limits.t, orig.t - y); + } else if (vLimits.end > orig.b) { + y = (vLimits.end - orig.b) / cos; + limits.b = Math.max(limits.b, orig.b + y); + } +} +function buildPointLabelItems(scale, labelSizes, padding) { + const items = []; + const valueCount = scale._pointLabels.length; + const opts = scale.options; + const extra = getTickBackdropHeight(opts) / 2; + const outerDistance = scale.drawingArea; + const additionalAngle = opts.pointLabels.centerPointLabels ? PI / valueCount : 0; + for (let i = 0; i < valueCount; i++) { + const pointLabelPosition = scale.getPointPosition(i, outerDistance + extra + padding[i], additionalAngle); + const angle = Math.round(toDegrees(_normalizeAngle(pointLabelPosition.angle + HALF_PI))); + const size = labelSizes[i]; + const y = yForAngle(pointLabelPosition.y, size.h, angle); + const textAlign = getTextAlignForAngle(angle); + const left = leftForTextAlign(pointLabelPosition.x, size.w, textAlign); + items.push({ + x: pointLabelPosition.x, + y, + textAlign, + left, + top: y, + right: left + size.w, + bottom: y + size.h + }); + } + return items; +} +function getTextAlignForAngle(angle) { + if (angle === 0 || angle === 180) { + return 'center'; + } else if (angle < 180) { + return 'left'; + } + return 'right'; +} +function leftForTextAlign(x, w, align) { + if (align === 'right') { + x -= w; + } else if (align === 'center') { + x -= (w / 2); + } + return x; +} +function yForAngle(y, h, angle) { + if (angle === 90 || angle === 270) { + y -= (h / 2); + } else if (angle > 270 || angle < 90) { + y -= h; + } + return y; +} +function drawPointLabels(scale, labelCount) { + const {ctx, options: {pointLabels}} = scale; + for (let i = labelCount - 1; i >= 0; i--) { + const optsAtIndex = pointLabels.setContext(scale.getPointLabelContext(i)); + const plFont = toFont(optsAtIndex.font); + const {x, y, textAlign, left, top, right, bottom} = scale._pointLabelItems[i]; + const {backdropColor} = optsAtIndex; + if (!isNullOrUndef(backdropColor)) { + const padding = toPadding(optsAtIndex.backdropPadding); + ctx.fillStyle = backdropColor; + ctx.fillRect(left - padding.left, top - padding.top, right - left + padding.width, bottom - top + padding.height); + } + renderText( + ctx, + scale._pointLabels[i], + x, + y + (plFont.lineHeight / 2), + plFont, + { + color: optsAtIndex.color, + textAlign: textAlign, + textBaseline: 'middle' + } + ); + } +} +function pathRadiusLine(scale, radius, circular, labelCount) { + const {ctx} = scale; + if (circular) { + ctx.arc(scale.xCenter, scale.yCenter, radius, 0, TAU); + } else { + let pointPosition = scale.getPointPosition(0, radius); + ctx.moveTo(pointPosition.x, pointPosition.y); + for (let i = 1; i < labelCount; i++) { + pointPosition = scale.getPointPosition(i, radius); + ctx.lineTo(pointPosition.x, pointPosition.y); + } + } +} +function drawRadiusLine(scale, gridLineOpts, radius, labelCount) { + const ctx = scale.ctx; + const circular = gridLineOpts.circular; + const {color, lineWidth} = gridLineOpts; + if ((!circular && !labelCount) || !color || !lineWidth || radius < 0) { + return; + } + ctx.save(); + ctx.strokeStyle = color; + ctx.lineWidth = lineWidth; + ctx.setLineDash(gridLineOpts.borderDash); + ctx.lineDashOffset = gridLineOpts.borderDashOffset; + ctx.beginPath(); + pathRadiusLine(scale, radius, circular, labelCount); + ctx.closePath(); + ctx.stroke(); + ctx.restore(); +} +function createPointLabelContext(parent, index, label) { + return createContext(parent, { + label, + index, + type: 'pointLabel' + }); +} +class RadialLinearScale extends LinearScaleBase { + constructor(cfg) { + super(cfg); + this.xCenter = undefined; + this.yCenter = undefined; + this.drawingArea = undefined; + this._pointLabels = []; + this._pointLabelItems = []; + } + setDimensions() { + const padding = this._padding = toPadding(getTickBackdropHeight(this.options) / 2); + const w = this.width = this.maxWidth - padding.width; + const h = this.height = this.maxHeight - padding.height; + this.xCenter = Math.floor(this.left + w / 2 + padding.left); + this.yCenter = Math.floor(this.top + h / 2 + padding.top); + this.drawingArea = Math.floor(Math.min(w, h) / 2); + } + determineDataLimits() { + const {min, max} = this.getMinMax(false); + this.min = isNumberFinite(min) && !isNaN(min) ? min : 0; + this.max = isNumberFinite(max) && !isNaN(max) ? max : 0; + this.handleTickRangeOptions(); + } + computeTickLimit() { + return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options)); + } + generateTickLabels(ticks) { + LinearScaleBase.prototype.generateTickLabels.call(this, ticks); + this._pointLabels = this.getLabels() + .map((value, index) => { + const label = callback(this.options.pointLabels.callback, [value, index], this); + return label || label === 0 ? label : ''; + }) + .filter((v, i) => this.chart.getDataVisibility(i)); + } + fit() { + const opts = this.options; + if (opts.display && opts.pointLabels.display) { + fitWithPointLabels(this); + } else { + this.setCenterPoint(0, 0, 0, 0); + } + } + setCenterPoint(leftMovement, rightMovement, topMovement, bottomMovement) { + this.xCenter += Math.floor((leftMovement - rightMovement) / 2); + this.yCenter += Math.floor((topMovement - bottomMovement) / 2); + this.drawingArea -= Math.min(this.drawingArea / 2, Math.max(leftMovement, rightMovement, topMovement, bottomMovement)); + } + getIndexAngle(index) { + const angleMultiplier = TAU / (this._pointLabels.length || 1); + const startAngle = this.options.startAngle || 0; + return _normalizeAngle(index * angleMultiplier + toRadians(startAngle)); + } + getDistanceFromCenterForValue(value) { + if (isNullOrUndef(value)) { + return NaN; + } + const scalingFactor = this.drawingArea / (this.max - this.min); + if (this.options.reverse) { + return (this.max - value) * scalingFactor; + } + return (value - this.min) * scalingFactor; + } + getValueForDistanceFromCenter(distance) { + if (isNullOrUndef(distance)) { + return NaN; + } + const scaledDistance = distance / (this.drawingArea / (this.max - this.min)); + return this.options.reverse ? this.max - scaledDistance : this.min + scaledDistance; + } + getPointLabelContext(index) { + const pointLabels = this._pointLabels || []; + if (index >= 0 && index < pointLabels.length) { + const pointLabel = pointLabels[index]; + return createPointLabelContext(this.getContext(), index, pointLabel); + } + } + getPointPosition(index, distanceFromCenter, additionalAngle = 0) { + const angle = this.getIndexAngle(index) - HALF_PI + additionalAngle; + return { + x: Math.cos(angle) * distanceFromCenter + this.xCenter, + y: Math.sin(angle) * distanceFromCenter + this.yCenter, + angle + }; + } + getPointPositionForValue(index, value) { + return this.getPointPosition(index, this.getDistanceFromCenterForValue(value)); + } + getBasePosition(index) { + return this.getPointPositionForValue(index || 0, this.getBaseValue()); + } + getPointLabelPosition(index) { + const {left, top, right, bottom} = this._pointLabelItems[index]; + return { + left, + top, + right, + bottom, + }; + } + drawBackground() { + const {backgroundColor, grid: {circular}} = this.options; + if (backgroundColor) { + const ctx = this.ctx; + ctx.save(); + ctx.beginPath(); + pathRadiusLine(this, this.getDistanceFromCenterForValue(this._endValue), circular, this._pointLabels.length); + ctx.closePath(); + ctx.fillStyle = backgroundColor; + ctx.fill(); + ctx.restore(); + } + } + drawGrid() { + const ctx = this.ctx; + const opts = this.options; + const {angleLines, grid} = opts; + const labelCount = this._pointLabels.length; + let i, offset, position; + if (opts.pointLabels.display) { + drawPointLabels(this, labelCount); + } + if (grid.display) { + this.ticks.forEach((tick, index) => { + if (index !== 0) { + offset = this.getDistanceFromCenterForValue(tick.value); + const optsAtIndex = grid.setContext(this.getContext(index - 1)); + drawRadiusLine(this, optsAtIndex, offset, labelCount); + } + }); + } + if (angleLines.display) { + ctx.save(); + for (i = labelCount - 1; i >= 0; i--) { + const optsAtIndex = angleLines.setContext(this.getPointLabelContext(i)); + const {color, lineWidth} = optsAtIndex; + if (!lineWidth || !color) { + continue; + } + ctx.lineWidth = lineWidth; + ctx.strokeStyle = color; + ctx.setLineDash(optsAtIndex.borderDash); + ctx.lineDashOffset = optsAtIndex.borderDashOffset; + offset = this.getDistanceFromCenterForValue(opts.ticks.reverse ? this.min : this.max); + position = this.getPointPosition(i, offset); + ctx.beginPath(); + ctx.moveTo(this.xCenter, this.yCenter); + ctx.lineTo(position.x, position.y); + ctx.stroke(); + } + ctx.restore(); + } + } + drawBorder() {} + drawLabels() { + const ctx = this.ctx; + const opts = this.options; + const tickOpts = opts.ticks; + if (!tickOpts.display) { + return; + } + const startAngle = this.getIndexAngle(0); + let offset, width; + ctx.save(); + ctx.translate(this.xCenter, this.yCenter); + ctx.rotate(startAngle); + ctx.textAlign = 'center'; + ctx.textBaseline = 'middle'; + this.ticks.forEach((tick, index) => { + if (index === 0 && !opts.reverse) { + return; + } + const optsAtIndex = tickOpts.setContext(this.getContext(index)); + const tickFont = toFont(optsAtIndex.font); + offset = this.getDistanceFromCenterForValue(this.ticks[index].value); + if (optsAtIndex.showLabelBackdrop) { + ctx.font = tickFont.string; + width = ctx.measureText(tick.label).width; + ctx.fillStyle = optsAtIndex.backdropColor; + const padding = toPadding(optsAtIndex.backdropPadding); + ctx.fillRect( + -width / 2 - padding.left, + -offset - tickFont.size / 2 - padding.top, + width + padding.width, + tickFont.size + padding.height + ); + } + renderText(ctx, tick.label, 0, -offset, tickFont, { + color: optsAtIndex.color, + }); + }); + ctx.restore(); + } + drawTitle() {} +} +RadialLinearScale.id = 'radialLinear'; +RadialLinearScale.defaults = { + display: true, + animate: true, + position: 'chartArea', + angleLines: { + display: true, + lineWidth: 1, + borderDash: [], + borderDashOffset: 0.0 + }, + grid: { + circular: false + }, + startAngle: 0, + ticks: { + showLabelBackdrop: true, + callback: Ticks.formatters.numeric + }, + pointLabels: { + backdropColor: undefined, + backdropPadding: 2, + display: true, + font: { + size: 10 + }, + callback(label) { + return label; + }, + padding: 5, + centerPointLabels: false + } +}; +RadialLinearScale.defaultRoutes = { + 'angleLines.color': 'borderColor', + 'pointLabels.color': 'color', + 'ticks.color': 'color' +}; +RadialLinearScale.descriptors = { + angleLines: { + _fallback: 'grid' + } +}; + +const INTERVALS = { + millisecond: {common: true, size: 1, steps: 1000}, + second: {common: true, size: 1000, steps: 60}, + minute: {common: true, size: 60000, steps: 60}, + hour: {common: true, size: 3600000, steps: 24}, + day: {common: true, size: 86400000, steps: 30}, + week: {common: false, size: 604800000, steps: 4}, + month: {common: true, size: 2.628e9, steps: 12}, + quarter: {common: false, size: 7.884e9, steps: 4}, + year: {common: true, size: 3.154e10} +}; +const UNITS = (Object.keys(INTERVALS)); +function sorter(a, b) { + return a - b; +} +function parse(scale, input) { + if (isNullOrUndef(input)) { + return null; + } + const adapter = scale._adapter; + const {parser, round, isoWeekday} = scale._parseOpts; + let value = input; + if (typeof parser === 'function') { + value = parser(value); + } + if (!isNumberFinite(value)) { + value = typeof parser === 'string' + ? adapter.parse(value, parser) + : adapter.parse(value); + } + if (value === null) { + return null; + } + if (round) { + value = round === 'week' && (isNumber(isoWeekday) || isoWeekday === true) + ? adapter.startOf(value, 'isoWeek', isoWeekday) + : adapter.startOf(value, round); + } + return +value; +} +function determineUnitForAutoTicks(minUnit, min, max, capacity) { + const ilen = UNITS.length; + for (let i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) { + const interval = INTERVALS[UNITS[i]]; + const factor = interval.steps ? interval.steps : Number.MAX_SAFE_INTEGER; + if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) { + return UNITS[i]; + } + } + return UNITS[ilen - 1]; +} +function determineUnitForFormatting(scale, numTicks, minUnit, min, max) { + for (let i = UNITS.length - 1; i >= UNITS.indexOf(minUnit); i--) { + const unit = UNITS[i]; + if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= numTicks - 1) { + return unit; + } + } + return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0]; +} +function determineMajorUnit(unit) { + for (let i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) { + if (INTERVALS[UNITS[i]].common) { + return UNITS[i]; + } + } +} +function addTick(ticks, time, timestamps) { + if (!timestamps) { + ticks[time] = true; + } else if (timestamps.length) { + const {lo, hi} = _lookup(timestamps, time); + const timestamp = timestamps[lo] >= time ? timestamps[lo] : timestamps[hi]; + ticks[timestamp] = true; + } +} +function setMajorTicks(scale, ticks, map, majorUnit) { + const adapter = scale._adapter; + const first = +adapter.startOf(ticks[0].value, majorUnit); + const last = ticks[ticks.length - 1].value; + let major, index; + for (major = first; major <= last; major = +adapter.add(major, 1, majorUnit)) { + index = map[major]; + if (index >= 0) { + ticks[index].major = true; + } + } + return ticks; +} +function ticksFromTimestamps(scale, values, majorUnit) { + const ticks = []; + const map = {}; + const ilen = values.length; + let i, value; + for (i = 0; i < ilen; ++i) { + value = values[i]; + map[value] = i; + ticks.push({ + value, + major: false + }); + } + return (ilen === 0 || !majorUnit) ? ticks : setMajorTicks(scale, ticks, map, majorUnit); +} +class TimeScale extends Scale { + constructor(props) { + super(props); + this._cache = { + data: [], + labels: [], + all: [] + }; + this._unit = 'day'; + this._majorUnit = undefined; + this._offsets = {}; + this._normalized = false; + this._parseOpts = undefined; + } + init(scaleOpts, opts) { + const time = scaleOpts.time || (scaleOpts.time = {}); + const adapter = this._adapter = new _adapters._date(scaleOpts.adapters.date); + mergeIf(time.displayFormats, adapter.formats()); + this._parseOpts = { + parser: time.parser, + round: time.round, + isoWeekday: time.isoWeekday + }; + super.init(scaleOpts); + this._normalized = opts.normalized; + } + parse(raw, index) { + if (raw === undefined) { + return null; + } + return parse(this, raw); + } + beforeLayout() { + super.beforeLayout(); + this._cache = { + data: [], + labels: [], + all: [] + }; + } + determineDataLimits() { + const options = this.options; + const adapter = this._adapter; + const unit = options.time.unit || 'day'; + let {min, max, minDefined, maxDefined} = this.getUserBounds(); + function _applyBounds(bounds) { + if (!minDefined && !isNaN(bounds.min)) { + min = Math.min(min, bounds.min); + } + if (!maxDefined && !isNaN(bounds.max)) { + max = Math.max(max, bounds.max); + } + } + if (!minDefined || !maxDefined) { + _applyBounds(this._getLabelBounds()); + if (options.bounds !== 'ticks' || options.ticks.source !== 'labels') { + _applyBounds(this.getMinMax(false)); + } + } + min = isNumberFinite(min) && !isNaN(min) ? min : +adapter.startOf(Date.now(), unit); + max = isNumberFinite(max) && !isNaN(max) ? max : +adapter.endOf(Date.now(), unit) + 1; + this.min = Math.min(min, max - 1); + this.max = Math.max(min + 1, max); + } + _getLabelBounds() { + const arr = this.getLabelTimestamps(); + let min = Number.POSITIVE_INFINITY; + let max = Number.NEGATIVE_INFINITY; + if (arr.length) { + min = arr[0]; + max = arr[arr.length - 1]; + } + return {min, max}; + } + buildTicks() { + const options = this.options; + const timeOpts = options.time; + const tickOpts = options.ticks; + const timestamps = tickOpts.source === 'labels' ? this.getLabelTimestamps() : this._generate(); + if (options.bounds === 'ticks' && timestamps.length) { + this.min = this._userMin || timestamps[0]; + this.max = this._userMax || timestamps[timestamps.length - 1]; + } + const min = this.min; + const max = this.max; + const ticks = _filterBetween(timestamps, min, max); + this._unit = timeOpts.unit || (tickOpts.autoSkip + ? determineUnitForAutoTicks(timeOpts.minUnit, this.min, this.max, this._getLabelCapacity(min)) + : determineUnitForFormatting(this, ticks.length, timeOpts.minUnit, this.min, this.max)); + this._majorUnit = !tickOpts.major.enabled || this._unit === 'year' ? undefined + : determineMajorUnit(this._unit); + this.initOffsets(timestamps); + if (options.reverse) { + ticks.reverse(); + } + return ticksFromTimestamps(this, ticks, this._majorUnit); + } + initOffsets(timestamps) { + let start = 0; + let end = 0; + let first, last; + if (this.options.offset && timestamps.length) { + first = this.getDecimalForValue(timestamps[0]); + if (timestamps.length === 1) { + start = 1 - first; + } else { + start = (this.getDecimalForValue(timestamps[1]) - first) / 2; + } + last = this.getDecimalForValue(timestamps[timestamps.length - 1]); + if (timestamps.length === 1) { + end = last; + } else { + end = (last - this.getDecimalForValue(timestamps[timestamps.length - 2])) / 2; + } + } + const limit = timestamps.length < 3 ? 0.5 : 0.25; + start = _limitValue(start, 0, limit); + end = _limitValue(end, 0, limit); + this._offsets = {start, end, factor: 1 / (start + 1 + end)}; + } + _generate() { + const adapter = this._adapter; + const min = this.min; + const max = this.max; + const options = this.options; + const timeOpts = options.time; + const minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, this._getLabelCapacity(min)); + const stepSize = valueOrDefault(timeOpts.stepSize, 1); + const weekday = minor === 'week' ? timeOpts.isoWeekday : false; + const hasWeekday = isNumber(weekday) || weekday === true; + const ticks = {}; + let first = min; + let time, count; + if (hasWeekday) { + first = +adapter.startOf(first, 'isoWeek', weekday); + } + first = +adapter.startOf(first, hasWeekday ? 'day' : minor); + if (adapter.diff(max, min, minor) > 100000 * stepSize) { + throw new Error(min + ' and ' + max + ' are too far apart with stepSize of ' + stepSize + ' ' + minor); + } + const timestamps = options.ticks.source === 'data' && this.getDataTimestamps(); + for (time = first, count = 0; time < max; time = +adapter.add(time, stepSize, minor), count++) { + addTick(ticks, time, timestamps); + } + if (time === max || options.bounds === 'ticks' || count === 1) { + addTick(ticks, time, timestamps); + } + return Object.keys(ticks).sort((a, b) => a - b).map(x => +x); + } + getLabelForValue(value) { + const adapter = this._adapter; + const timeOpts = this.options.time; + if (timeOpts.tooltipFormat) { + return adapter.format(value, timeOpts.tooltipFormat); + } + return adapter.format(value, timeOpts.displayFormats.datetime); + } + _tickFormatFunction(time, index, ticks, format) { + const options = this.options; + const formats = options.time.displayFormats; + const unit = this._unit; + const majorUnit = this._majorUnit; + const minorFormat = unit && formats[unit]; + const majorFormat = majorUnit && formats[majorUnit]; + const tick = ticks[index]; + const major = majorUnit && majorFormat && tick && tick.major; + const label = this._adapter.format(time, format || (major ? majorFormat : minorFormat)); + const formatter = options.ticks.callback; + return formatter ? callback(formatter, [label, index, ticks], this) : label; + } + generateTickLabels(ticks) { + let i, ilen, tick; + for (i = 0, ilen = ticks.length; i < ilen; ++i) { + tick = ticks[i]; + tick.label = this._tickFormatFunction(tick.value, i, ticks); + } + } + getDecimalForValue(value) { + return value === null ? NaN : (value - this.min) / (this.max - this.min); + } + getPixelForValue(value) { + const offsets = this._offsets; + const pos = this.getDecimalForValue(value); + return this.getPixelForDecimal((offsets.start + pos) * offsets.factor); + } + getValueForPixel(pixel) { + const offsets = this._offsets; + const pos = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end; + return this.min + pos * (this.max - this.min); + } + _getLabelSize(label) { + const ticksOpts = this.options.ticks; + const tickLabelWidth = this.ctx.measureText(label).width; + const angle = toRadians(this.isHorizontal() ? ticksOpts.maxRotation : ticksOpts.minRotation); + const cosRotation = Math.cos(angle); + const sinRotation = Math.sin(angle); + const tickFontSize = this._resolveTickFontOptions(0).size; + return { + w: (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation), + h: (tickLabelWidth * sinRotation) + (tickFontSize * cosRotation) + }; + } + _getLabelCapacity(exampleTime) { + const timeOpts = this.options.time; + const displayFormats = timeOpts.displayFormats; + const format = displayFormats[timeOpts.unit] || displayFormats.millisecond; + const exampleLabel = this._tickFormatFunction(exampleTime, 0, ticksFromTimestamps(this, [exampleTime], this._majorUnit), format); + const size = this._getLabelSize(exampleLabel); + const capacity = Math.floor(this.isHorizontal() ? this.width / size.w : this.height / size.h) - 1; + return capacity > 0 ? capacity : 1; + } + getDataTimestamps() { + let timestamps = this._cache.data || []; + let i, ilen; + if (timestamps.length) { + return timestamps; + } + const metas = this.getMatchingVisibleMetas(); + if (this._normalized && metas.length) { + return (this._cache.data = metas[0].controller.getAllParsedValues(this)); + } + for (i = 0, ilen = metas.length; i < ilen; ++i) { + timestamps = timestamps.concat(metas[i].controller.getAllParsedValues(this)); + } + return (this._cache.data = this.normalize(timestamps)); + } + getLabelTimestamps() { + const timestamps = this._cache.labels || []; + let i, ilen; + if (timestamps.length) { + return timestamps; + } + const labels = this.getLabels(); + for (i = 0, ilen = labels.length; i < ilen; ++i) { + timestamps.push(parse(this, labels[i])); + } + return (this._cache.labels = this._normalized ? timestamps : this.normalize(timestamps)); + } + normalize(values) { + return _arrayUnique(values.sort(sorter)); + } +} +TimeScale.id = 'time'; +TimeScale.defaults = { + bounds: 'data', + adapters: {}, + time: { + parser: false, + unit: false, + round: false, + isoWeekday: false, + minUnit: 'millisecond', + displayFormats: {} + }, + ticks: { + source: 'auto', + major: { + enabled: false + } + } +}; + +function interpolate(table, val, reverse) { + let lo = 0; + let hi = table.length - 1; + let prevSource, nextSource, prevTarget, nextTarget; + if (reverse) { + if (val >= table[lo].pos && val <= table[hi].pos) { + ({lo, hi} = _lookupByKey(table, 'pos', val)); + } + ({pos: prevSource, time: prevTarget} = table[lo]); + ({pos: nextSource, time: nextTarget} = table[hi]); + } else { + if (val >= table[lo].time && val <= table[hi].time) { + ({lo, hi} = _lookupByKey(table, 'time', val)); + } + ({time: prevSource, pos: prevTarget} = table[lo]); + ({time: nextSource, pos: nextTarget} = table[hi]); + } + const span = nextSource - prevSource; + return span ? prevTarget + (nextTarget - prevTarget) * (val - prevSource) / span : prevTarget; +} +class TimeSeriesScale extends TimeScale { + constructor(props) { + super(props); + this._table = []; + this._minPos = undefined; + this._tableRange = undefined; + } + initOffsets() { + const timestamps = this._getTimestampsForTable(); + const table = this._table = this.buildLookupTable(timestamps); + this._minPos = interpolate(table, this.min); + this._tableRange = interpolate(table, this.max) - this._minPos; + super.initOffsets(timestamps); + } + buildLookupTable(timestamps) { + const {min, max} = this; + const items = []; + const table = []; + let i, ilen, prev, curr, next; + for (i = 0, ilen = timestamps.length; i < ilen; ++i) { + curr = timestamps[i]; + if (curr >= min && curr <= max) { + items.push(curr); + } + } + if (items.length < 2) { + return [ + {time: min, pos: 0}, + {time: max, pos: 1} + ]; + } + for (i = 0, ilen = items.length; i < ilen; ++i) { + next = items[i + 1]; + prev = items[i - 1]; + curr = items[i]; + if (Math.round((next + prev) / 2) !== curr) { + table.push({time: curr, pos: i / (ilen - 1)}); + } + } + return table; + } + _getTimestampsForTable() { + let timestamps = this._cache.all || []; + if (timestamps.length) { + return timestamps; + } + const data = this.getDataTimestamps(); + const label = this.getLabelTimestamps(); + if (data.length && label.length) { + timestamps = this.normalize(data.concat(label)); + } else { + timestamps = data.length ? data : label; + } + timestamps = this._cache.all = timestamps; + return timestamps; + } + getDecimalForValue(value) { + return (interpolate(this._table, value) - this._minPos) / this._tableRange; + } + getValueForPixel(pixel) { + const offsets = this._offsets; + const decimal = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end; + return interpolate(this._table, decimal * this._tableRange + this._minPos, true); + } +} +TimeSeriesScale.id = 'timeseries'; +TimeSeriesScale.defaults = TimeScale.defaults; + +var scales = /*#__PURE__*/Object.freeze({ +__proto__: null, +CategoryScale: CategoryScale, +LinearScale: LinearScale, +LogarithmicScale: LogarithmicScale, +RadialLinearScale: RadialLinearScale, +TimeScale: TimeScale, +TimeSeriesScale: TimeSeriesScale +}); + +Chart.register(controllers, scales, elements, plugins); +Chart.helpers = {...helpers}; +Chart._adapters = _adapters; +Chart.Animation = Animation; +Chart.Animations = Animations; +Chart.animator = animator; +Chart.controllers = registry.controllers.items; +Chart.DatasetController = DatasetController; +Chart.Element = Element; +Chart.elements = elements; +Chart.Interaction 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0,this._ticksLength=0,this._borderValue=0,this._cache={},this._dataLimitsCached=!1,this.$context=void 0}init(t){this.options=t.setContext(this.getContext()),this.axis=t.axis,this._userMin=this.parse(t.min),this._userMax=this.parse(t.max),this._suggestedMin=this.parse(t.suggestedMin),this._suggestedMax=this.parse(t.suggestedMax)}parse(t,e){return t}getUserBounds(){let{_userMin:t,_userMax:e,_suggestedMin:i,_suggestedMax:s}=this;return t=q(t,Number.POSITIVE_INFINITY),e=q(e,Number.NEGATIVE_INFINITY),i=q(i,Number.POSITIVE_INFINITY),s=q(s,Number.NEGATIVE_INFINITY),{min:q(t,i),max:q(e,s),minDefined:X(t),maxDefined:X(e)}}getMinMax(t){let e,{min:i,max:s,minDefined:n,maxDefined:o}=this.getUserBounds();if(n&&o)return{min:i,max:s};const a=this.getMatchingVisibleMetas();for(let r=0,l=a.length;rs?s:i,s=n&&i>s?i:s,{min:q(i,q(s,i)),max:q(s,q(i,s))}}getPadding(){return{left:this.paddingLeft||0,top:this.paddingTop||0,right:this.paddingRight||0,bottom:this.paddingBottom||0}}getTicks(){return this.ticks}getLabels(){const t=this.chart.data;return this.options.labels||(this.isHorizontal()?t.xLabels:t.yLabels)||t.labels||[]}beforeLayout(){this._cache={},this._dataLimitsCached=!1}beforeUpdate(){J(this.options.beforeUpdate,[this])}update(t,e,i){const{beginAtZero:s,grace:n,ticks:o}=this.options,a=o.sampleSize;this.beforeUpdate(),this.maxWidth=t,this.maxHeight=e,this._margins=i=Object.assign({left:0,right:0,top:0,bottom:0},i),this.ticks=null,this._labelSizes=null,this._gridLineItems=null,this._labelItems=null,this.beforeSetDimensions(),this.setDimensions(),this.afterSetDimensions(),this._maxLength=this.isHorizontal()?this.width+i.left+i.right:this.height+i.top+i.bottom,this._dataLimitsCached||(this.beforeDataLimits(),this.determineDataLimits(),this.afterDataLimits(),this._range=$e(this,n,s),this._dataLimitsCached=!0),this.beforeBuildTicks(),this.ticks=this.buildTicks()||[],this.afterBuildTicks();const r=a=n||i<=1||!this.isHorizontal())return void(this.labelRotation=s);const h=this._getLabelSizes(),c=h.widest.width,d=h.highest.height,u=jt(this.chart.width-c,0,this.maxWidth);o=t.offset?this.maxWidth/i:u/(i-1),c+6>o&&(o=u/(i-(t.offset?.5:1)),a=this.maxHeight-Is(t.grid)-e.padding-zs(t.title,this.chart.options.font),r=Math.sqrt(c*c+d*d),l=zt(Math.min(Math.asin(jt((h.highest.height+6)/o,-1,1)),Math.asin(jt(a/r,-1,1))-Math.asin(jt(d/r,-1,1)))),l=Math.max(s,Math.min(n,l))),this.labelRotation=l}afterCalculateLabelRotation(){J(this.options.afterCalculateLabelRotation,[this])}beforeFit(){J(this.options.beforeFit,[this])}fit(){const t={width:0,height:0},{chart:e,options:{ticks:i,title:s,grid:n}}=this,o=this._isVisible(),a=this.isHorizontal();if(o){const o=zs(s,e.options.font);if(a?(t.width=this.maxWidth,t.height=Is(n)+o):(t.height=this.maxHeight,t.width=Is(n)+o),i.display&&this.ticks.length){const{first:e,last:s,widest:n,highest:o}=this._getLabelSizes(),r=2*i.padding,l=It(this.labelRotation),h=Math.cos(l),c=Math.sin(l);if(a){const e=i.mirror?0:c*n.width+h*o.height;t.height=Math.min(this.maxHeight,t.height+e+r)}else{const e=i.mirror?0:h*n.width+c*o.height;t.width=Math.min(this.maxWidth,t.width+e+r)}this._calculatePadding(e,s,c,h)}}this._handleMargins(),a?(this.width=this._length=e.width-this._margins.left-this._margins.right,this.height=t.height):(this.width=t.width,this.height=this._length=e.height-this._margins.top-this._margins.bottom)}_calculatePadding(t,e,i,s){const{ticks:{align:n,padding:o},position:a}=this.options,r=0!==this.labelRotation,l="top"!==a&&"x"===this.axis;if(this.isHorizontal()){const a=this.getPixelForTick(0)-this.left,h=this.right-this.getPixelForTick(this.ticks.length-1);let c=0,d=0;r?l?(c=s*t.width,d=i*e.height):(c=i*t.height,d=s*e.width):"start"===n?d=e.width:"end"===n?c=t.width:(c=t.width/2,d=e.width/2),this.paddingLeft=Math.max((c-a+o)*this.width/(this.width-a),0),this.paddingRight=Math.max((d-h+o)*this.width/(this.width-h),0)}else{let i=e.height/2,s=t.height/2;"start"===n?(i=0,s=t.height):"end"===n&&(i=e.height,s=0),this.paddingTop=i+o,this.paddingBottom=s+o}}_handleMargins(){this._margins&&(this._margins.left=Math.max(this.paddingLeft,this._margins.left),this._margins.top=Math.max(this.paddingTop,this._margins.top),this._margins.right=Math.max(this.paddingRight,this._margins.right),this._margins.bottom=Math.max(this.paddingBottom,this._margins.bottom))}afterFit(){J(this.options.afterFit,[this])}isHorizontal(){const{axis:t,position:e}=this.options;return"top"===e||"bottom"===e||"x"===t}isFullSize(){return this.options.fullSize}_convertTicksToLabels(t){let e,i;for(this.beforeTickToLabelConversion(),this.generateTickLabels(t),e=0,i=t.length;e{const i=t.gc,s=i.length/2;let n;if(s>e){for(n=0;n({width:n[t]||0,height:o[t]||0});return{first:v(0),last:v(e-1),widest:v(_),highest:v(y),widths:n,heights:o}}getLabelForValue(t){return t}getPixelForValue(t,e){return NaN}getValueForPixel(t){}getPixelForTick(t){const e=this.ticks;return t<0||t>e.length-1?null:this.getPixelForValue(e[t].value)}getPixelForDecimal(t){this._reversePixels&&(t=1-t);const e=this._startPixel+t*this._length;return $t(this._alignToPixels?Kt(this.chart,e,0):e)}getDecimalForPixel(t){const e=(t-this._startPixel)/this._length;return this._reversePixels?1-e:e}getBasePixel(){return this.getPixelForValue(this.getBaseValue())}getBaseValue(){const{min:t,max:e}=this;return t<0&&e<0?e:t>0&&e>0?t:0}getContext(t){const e=this.ticks||[];if(t>=0&&ta*s?a/i:r/s:r*s0}_computeGridLineItems(t){const e=this.axis,i=this.chart,s=this.options,{grid:n,position:o}=s,a=n.offset,r=this.isHorizontal(),l=this.ticks.length+(a?1:0),h=Is(n),c=[],d=n.setContext(this.getContext()),u=d.drawBorder?d.borderWidth:0,f=u/2,g=function(t){return Kt(i,t,u)};let p,m,x,b,_,y,v,w,M,k,S,P;if("top"===o)p=g(this.bottom),y=this.bottom-h,w=p-f,k=g(t.top)+f,P=t.bottom;else if("bottom"===o)p=g(this.top),k=t.top,P=g(t.bottom)-f,y=p+f,w=this.top+h;else if("left"===o)p=g(this.right),_=this.right-h,v=p-f,M=g(t.left)+f,S=t.right;else if("right"===o)p=g(this.left),M=t.left,S=g(t.right)-f,_=p+f,v=this.left+h;else if("x"===e){if("center"===o)p=g((t.top+t.bottom)/2+.5);else if(U(o)){const t=Object.keys(o)[0],e=o[t];p=g(this.chart.scales[t].getPixelForValue(e))}k=t.top,P=t.bottom,y=p+f,w=y+h}else if("y"===e){if("center"===o)p=g((t.left+t.right)/2);else if(U(o)){const t=Object.keys(o)[0],e=o[t];p=g(this.chart.scales[t].getPixelForValue(e))}_=p-f,v=_-h,M=t.left,S=t.right}const D=K(s.ticks.maxTicksLimit,l),C=Math.max(1,Math.ceil(l/D));for(m=0;me.value===t));if(i>=0){return e.setContext(this.getContext(i)).lineWidth}return 0}drawGrid(t){const e=this.options.grid,i=this.ctx,s=this._gridLineItems||(this._gridLineItems=this._computeGridLineItems(t));let n,o;const a=(t,e,s)=>{s.width&&s.color&&(i.save(),i.lineWidth=s.width,i.strokeStyle=s.color,i.setLineDash(s.borderDash||[]),i.lineDashOffset=s.borderDashOffset,i.beginPath(),i.moveTo(t.x,t.y),i.lineTo(e.x,e.y),i.stroke(),i.restore())};if(e.display)for(n=0,o=s.length;n{this.drawBackground(),this.drawGrid(t),this.drawTitle()}},{z:i+1,draw:()=>{this.drawBorder()}},{z:e,draw:t=>{this.drawLabels(t)}}]:[{z:e,draw:t=>{this.draw(t)}}]}getMatchingVisibleMetas(t){const e=this.chart.getSortedVisibleDatasetMetas(),i=this.axis+"AxisID",s=[];let n,o;for(n=0,o=e.length;n{const s=i.split("."),n=s.pop(),o=[t].concat(s).join("."),a=e[i].split("."),r=a.pop(),l=a.join(".");bt.route(o,n,l,r)}))}(e,t.defaultRoutes);t.descriptors&&bt.describe(e,t.descriptors)}(t,o,i),this.override&&bt.override(t.id,t.overrides)),o}get(t){return this.items[t]}unregister(t){const e=this.items,i=t.id,s=this.scope;i in e&&delete e[i],s&&i in bt[s]&&(delete bt[s][i],this.override&&delete gt[i])}}var Ws=new class{constructor(){this.controllers=new Vs(Ps,"datasets",!0),this.elements=new Vs(Ds,"elements"),this.plugins=new Vs(Object,"plugins"),this.scales=new Vs(Bs,"scales"),this._typedRegistries=[this.controllers,this.scales,this.elements]}add(...t){this._each("register",t)}remove(...t){this._each("unregister",t)}addControllers(...t){this._each("register",t,this.controllers)}addElements(...t){this._each("register",t,this.elements)}addPlugins(...t){this._each("register",t,this.plugins)}addScales(...t){this._each("register",t,this.scales)}getController(t){return this._get(t,this.controllers,"controller")}getElement(t){return this._get(t,this.elements,"element")}getPlugin(t){return this._get(t,this.plugins,"plugin")}getScale(t){return this._get(t,this.scales,"scale")}removeControllers(...t){this._each("unregister",t,this.controllers)}removeElements(...t){this._each("unregister",t,this.elements)}removePlugins(...t){this._each("unregister",t,this.plugins)}removeScales(...t){this._each("unregister",t,this.scales)}_each(t,e,i){[...e].forEach((e=>{const s=i||this._getRegistryForType(e);i||s.isForType(e)||s===this.plugins&&e.id?this._exec(t,s,e):Q(e,(e=>{const s=i||this._getRegistryForType(e);this._exec(t,s,e)}))}))}_exec(t,e,i){const s=ht(t);J(i["before"+s],[],i),e[t](i),J(i["after"+s],[],i)}_getRegistryForType(t){for(let e=0;et.filter((t=>!e.some((e=>t.plugin.id===e.plugin.id))));this._notify(s(e,i),t,"stop"),this._notify(s(i,e),t,"start")}}function Hs(t,e){return e||!1!==t?!0===t?{}:t:null}function js(t,e,i,s){const n=t.pluginScopeKeys(e),o=t.getOptionScopes(i,n);return t.createResolver(o,s,[""],{scriptable:!1,indexable:!1,allKeys:!0})}function $s(t,e){const i=bt.datasets[t]||{};return((e.datasets||{})[t]||{}).indexAxis||e.indexAxis||i.indexAxis||"x"}function Ys(t,e){return"x"===t||"y"===t?t:e.axis||("top"===(i=e.position)||"bottom"===i?"x":"left"===i||"right"===i?"y":void 0)||t.charAt(0).toLowerCase();var i}function Us(t){const e=t.options||(t.options={});e.plugins=K(e.plugins,{}),e.scales=function(t,e){const i=gt[t.type]||{scales:{}},s=e.scales||{},n=$s(t.type,e),o=Object.create(null),a=Object.create(null);return Object.keys(s).forEach((t=>{const e=s[t];if(!U(e))return console.error(`Invalid scale configuration for scale: ${t}`);if(e._proxy)return console.warn(`Ignoring resolver passed as options for scale: ${t}`);const r=Ys(t,e),l=function(t,e){return t===e?"_index_":"_value_"}(r,n),h=i.scales||{};o[r]=o[r]||t,a[t]=ot(Object.create(null),[{axis:r},e,h[r],h[l]])})),t.data.datasets.forEach((i=>{const n=i.type||t.type,r=i.indexAxis||$s(n,e),l=(gt[n]||{}).scales||{};Object.keys(l).forEach((t=>{const e=function(t,e){let i=t;return"_index_"===t?i=e:"_value_"===t&&(i="x"===e?"y":"x"),i}(t,r),n=i[e+"AxisID"]||o[e]||e;a[n]=a[n]||Object.create(null),ot(a[n],[{axis:e},s[n],l[t]])}))})),Object.keys(a).forEach((t=>{const e=a[t];ot(e,[bt.scales[e.type],bt.scale])})),a}(t,e)}function Xs(t){return(t=t||{}).datasets=t.datasets||[],t.labels=t.labels||[],t}const qs=new Map,Ks=new Set;function Gs(t,e){let i=qs.get(t);return i||(i=e(),qs.set(t,i),Ks.add(i)),i}const Zs=(t,e,i)=>{const s=lt(e,i);void 0!==s&&t.add(s)};class Js{constructor(t){this._config=function(t){return(t=t||{}).data=Xs(t.data),Us(t),t}(t),this._scopeCache=new Map,this._resolverCache=new Map}get platform(){return this._config.platform}get type(){return this._config.type}set type(t){this._config.type=t}get data(){return this._config.data}set data(t){this._config.data=Xs(t)}get options(){return this._config.options}set options(t){this._config.options=t}get plugins(){return this._config.plugins}update(){const t=this._config;this.clearCache(),Us(t)}clearCache(){this._scopeCache.clear(),this._resolverCache.clear()}datasetScopeKeys(t){return Gs(t,(()=>[[`datasets.${t}`,""]]))}datasetAnimationScopeKeys(t,e){return Gs(`${t}.transition.${e}`,(()=>[[`datasets.${t}.transitions.${e}`,`transitions.${e}`],[`datasets.${t}`,""]]))}datasetElementScopeKeys(t,e){return Gs(`${t}-${e}`,(()=>[[`datasets.${t}.elements.${e}`,`datasets.${t}`,`elements.${e}`,""]]))}pluginScopeKeys(t){const e=t.id;return Gs(`${this.type}-plugin-${e}`,(()=>[[`plugins.${e}`,...t.additionalOptionScopes||[]]]))}_cachedScopes(t,e){const i=this._scopeCache;let s=i.get(t);return s&&!e||(s=new Map,i.set(t,s)),s}getOptionScopes(t,e,i){const{options:s,type:n}=this,o=this._cachedScopes(t,i),a=o.get(e);if(a)return a;const r=new Set;e.forEach((e=>{t&&(r.add(t),e.forEach((e=>Zs(r,t,e)))),e.forEach((t=>Zs(r,s,t))),e.forEach((t=>Zs(r,gt[n]||{},t))),e.forEach((t=>Zs(r,bt,t))),e.forEach((t=>Zs(r,pt,t)))}));const l=Array.from(r);return 0===l.length&&l.push(Object.create(null)),Ks.has(e)&&o.set(e,l),l}chartOptionScopes(){const{options:t,type:e}=this;return[t,gt[e]||{},bt.datasets[e]||{},{type:e},bt,pt]}resolveNamedOptions(t,e,i,s=[""]){const n={$shared:!0},{resolver:o,subPrefixes:a}=Qs(this._resolverCache,t,s);let r=o;if(function(t,e){const{isScriptable:i,isIndexable:s}=ri(t);for(const n of e){const e=i(n),o=s(n),a=(o||e)&&t[n];if(e&&(dt(a)||tn(a))||o&&Y(a))return!0}return!1}(o,e)){n.$shared=!1;r=ai(o,i=dt(i)?i():i,this.createResolver(t,i,a))}for(const t of e)n[t]=r[t];return n}createResolver(t,e,i=[""],s){const{resolver:n}=Qs(this._resolverCache,t,i);return U(e)?ai(n,e,void 0,s):n}}function Qs(t,e,i){let s=t.get(e);s||(s=new Map,t.set(e,s));const n=i.join();let o=s.get(n);if(!o){o={resolver:oi(e,i),subPrefixes:i.filter((t=>!t.toLowerCase().includes("hover")))},s.set(n,o)}return o}const tn=t=>U(t)&&Object.getOwnPropertyNames(t).reduce(((e,i)=>e||dt(t[i])),!1);const en=["top","bottom","left","right","chartArea"];function sn(t,e){return"top"===t||"bottom"===t||-1===en.indexOf(t)&&"x"===e}function nn(t,e){return function(i,s){return i[t]===s[t]?i[e]-s[e]:i[t]-s[t]}}function on(t){const e=t.chart,i=e.options.animation;e.notifyPlugins("afterRender"),J(i&&i.onComplete,[t],e)}function an(t){const e=t.chart,i=e.options.animation;J(i&&i.onProgress,[t],e)}function rn(t){return ge()&&"string"==typeof t?t=document.getElementById(t):t&&t.length&&(t=t[0]),t&&t.canvas&&(t=t.canvas),t}const ln={},hn=t=>{const e=rn(t);return Object.values(ln).filter((t=>t.canvas===e)).pop()};function cn(t,e,i){const s=Object.keys(t);for(const n of s){const s=+n;if(s>=e){const o=t[n];delete t[n],(i>0||s>e)&&(t[s+i]=o)}}}class dn{constructor(t,e){const s=this.config=new Js(e),n=rn(t),o=hn(n);if(o)throw new Error("Canvas is already in use. Chart with ID '"+o.id+"' must be destroyed before the canvas can be reused.");const r=s.createResolver(s.chartOptionScopes(),this.getContext());this.platform=new(s.platform||ls(n)),this.platform.updateConfig(s);const l=this.platform.acquireContext(n,r.aspectRatio),h=l&&l.canvas,c=h&&h.height,d=h&&h.width;this.id=j(),this.ctx=l,this.canvas=h,this.width=d,this.height=c,this._options=r,this._aspectRatio=this.aspectRatio,this._layers=[],this._metasets=[],this._stacks=void 0,this.boxes=[],this.currentDevicePixelRatio=void 0,this.chartArea=void 0,this._active=[],this._lastEvent=void 0,this._listeners={},this._responsiveListeners=void 0,this._sortedMetasets=[],this.scales={},this._plugins=new Ns,this.$proxies={},this._hiddenIndices={},this.attached=!1,this._animationsDisabled=void 0,this.$context=void 0,this._doResize=i((t=>this.update(t)),r.resizeDelay||0),this._dataChanges=[],ln[this.id]=this,l&&h?(a.listen(this,"complete",on),a.listen(this,"progress",an),this._initialize(),this.attached&&this.update()):console.error("Failed to create chart: can't acquire context from the given item")}get aspectRatio(){const{options:{aspectRatio:t,maintainAspectRatio:e},width:i,height:s,_aspectRatio:n}=this;return $(t)?e&&n?n:s?i/s:null:t}get data(){return this.config.data}set data(t){this.config.data=t}get options(){return this._options}set options(t){this.config.options=t}_initialize(){return this.notifyPlugins("beforeInit"),this.options.responsive?this.resize():ke(this,this.options.devicePixelRatio),this.bindEvents(),this.notifyPlugins("afterInit"),this}clear(){return Gt(this.canvas,this.ctx),this}stop(){return a.stop(this),this}resize(t,e){a.running(this)?this._resizeBeforeDraw={width:t,height:e}:this._resize(t,e)}_resize(t,e){const i=this.options,s=this.canvas,n=i.maintainAspectRatio&&this.aspectRatio,o=this.platform.getMaximumSize(s,t,e,n),a=i.devicePixelRatio||this.platform.getDevicePixelRatio(),r=this.width?"resize":"attach";this.width=o.width,this.height=o.height,this._aspectRatio=this.aspectRatio,ke(this,a,!0)&&(this.notifyPlugins("resize",{size:o}),J(i.onResize,[this,o],this),this.attached&&this._doResize(r)&&this.render())}ensureScalesHaveIDs(){Q(this.options.scales||{},((t,e)=>{t.id=e}))}buildOrUpdateScales(){const t=this.options,e=t.scales,i=this.scales,s=Object.keys(i).reduce(((t,e)=>(t[e]=!1,t)),{});let n=[];e&&(n=n.concat(Object.keys(e).map((t=>{const i=e[t],s=Ys(t,i),n="r"===s,o="x"===s;return{options:i,dposition:n?"chartArea":o?"bottom":"left",dtype:n?"radialLinear":o?"category":"linear"}})))),Q(n,(e=>{const n=e.options,o=n.id,a=Ys(o,n),r=K(n.type,e.dtype);void 0!==n.position&&sn(n.position,a)===sn(e.dposition)||(n.position=e.dposition),s[o]=!0;let l=null;if(o in i&&i[o].type===r)l=i[o];else{l=new(Ws.getScale(r))({id:o,type:r,ctx:this.ctx,chart:this}),i[l.id]=l}l.init(n,t)})),Q(s,((t,e)=>{t||delete i[e]})),Q(i,(t=>{ni.configure(this,t,t.options),ni.addBox(this,t)}))}_updateMetasets(){const t=this._metasets,e=this.data.datasets.length,i=t.length;if(t.sort(((t,e)=>t.index-e.index)),i>e){for(let t=e;te.length&&delete this._stacks,t.forEach(((t,i)=>{0===e.filter((e=>e===t._dataset)).length&&this._destroyDatasetMeta(i)}))}buildOrUpdateControllers(){const t=[],e=this.data.datasets;let i,s;for(this._removeUnreferencedMetasets(),i=0,s=e.length;i{this.getDatasetMeta(e).controller.reset()}),this)}reset(){this._resetElements(),this.notifyPlugins("reset")}update(t){const e=this.config;e.update();const i=this._options=e.createResolver(e.chartOptionScopes(),this.getContext()),s=this._animationsDisabled=!i.animation;if(this._updateScales(),this._checkEventBindings(),this._updateHiddenIndices(),this._plugins.invalidate(),!1===this.notifyPlugins("beforeUpdate",{mode:t,cancelable:!0}))return;const n=this.buildOrUpdateControllers();this.notifyPlugins("beforeElementsUpdate");let o=0;for(let t=0,e=this.data.datasets.length;t{t.reset()})),this._updateDatasets(t),this.notifyPlugins("afterUpdate",{mode:t}),this._layers.sort(nn("z","_idx"));const{_active:a,_lastEvent:r}=this;r?this._eventHandler(r,!0):a.length&&this._updateHoverStyles(a,a,!0),this.render()}_updateScales(){Q(this.scales,(t=>{ni.removeBox(this,t)})),this.ensureScalesHaveIDs(),this.buildOrUpdateScales()}_checkEventBindings(){const t=this.options,e=new Set(Object.keys(this._listeners)),i=new Set(t.events);ut(e,i)&&!!this._responsiveListeners===t.responsive||(this.unbindEvents(),this.bindEvents())}_updateHiddenIndices(){const{_hiddenIndices:t}=this,e=this._getUniformDataChanges()||[];for(const{method:i,start:s,count:n}of e){cn(t,s,"_removeElements"===i?-n:n)}}_getUniformDataChanges(){const t=this._dataChanges;if(!t||!t.length)return;this._dataChanges=[];const e=this.data.datasets.length,i=e=>new Set(t.filter((t=>t[0]===e)).map(((t,e)=>e+","+t.splice(1).join(",")))),s=i(0);for(let t=1;tt.split(","))).map((t=>({method:t[1],start:+t[2],count:+t[3]})))}_updateLayout(t){if(!1===this.notifyPlugins("beforeLayout",{cancelable:!0}))return;ni.update(this,this.width,this.height,t);const e=this.chartArea,i=e.width<=0||e.height<=0;this._layers=[],Q(this.boxes,(t=>{i&&"chartArea"===t.position||(t.configure&&t.configure(),this._layers.push(...t._layers()))}),this),this._layers.forEach(((t,e)=>{t._idx=e})),this.notifyPlugins("afterLayout")}_updateDatasets(t){if(!1!==this.notifyPlugins("beforeDatasetsUpdate",{mode:t,cancelable:!0})){for(let t=0,e=this.data.datasets.length;t=0;--e)this._drawDataset(t[e]);this.notifyPlugins("afterDatasetsDraw")}_drawDataset(t){const e=this.ctx,i=t._clip,s=!i.disabled,n=this.chartArea,o={meta:t,index:t.index,cancelable:!0};!1!==this.notifyPlugins("beforeDatasetDraw",o)&&(s&&Qt(e,{left:!1===i.left?0:n.left-i.left,right:!1===i.right?this.width:n.right+i.right,top:!1===i.top?0:n.top-i.top,bottom:!1===i.bottom?this.height:n.bottom+i.bottom}),t.controller.draw(),s&&te(e),o.cancelable=!1,this.notifyPlugins("afterDatasetDraw",o))}getElementsAtEventForMode(t,e,i,s){const n=Ee.modes[e];return"function"==typeof n?n(this,t,i,s):[]}getDatasetMeta(t){const e=this.data.datasets[t],i=this._metasets;let s=i.filter((t=>t&&t._dataset===e)).pop();return s||(s={type:null,data:[],dataset:null,controller:null,hidden:null,xAxisID:null,yAxisID:null,order:e&&e.order||0,index:t,_dataset:e,_parsed:[],_sorted:!1},i.push(s)),s}getContext(){return this.$context||(this.$context=Ye(null,{chart:this,type:"chart"}))}getVisibleDatasetCount(){return this.getSortedVisibleDatasetMetas().length}isDatasetVisible(t){const e=this.data.datasets[t];if(!e)return!1;const i=this.getDatasetMeta(t);return"boolean"==typeof i.hidden?!i.hidden:!e.hidden}setDatasetVisibility(t,e){this.getDatasetMeta(t).hidden=!e}toggleDataVisibility(t){this._hiddenIndices[t]=!this._hiddenIndices[t]}getDataVisibility(t){return!this._hiddenIndices[t]}_updateVisibility(t,e,i){const s=i?"show":"hide",n=this.getDatasetMeta(t),o=n.controller._resolveAnimations(void 0,s);ct(e)?(n.data[e].hidden=!i,this.update()):(this.setDatasetVisibility(t,i),o.update(n,{visible:i}),this.update((e=>e.datasetIndex===t?s:void 0)))}hide(t,e){this._updateVisibility(t,e,!1)}show(t,e){this._updateVisibility(t,e,!0)}_destroyDatasetMeta(t){const e=this._metasets[t];e&&e.controller&&e.controller._destroy(),delete this._metasets[t]}_stop(){let t,e;for(this.stop(),a.remove(this),t=0,e=this.data.datasets.length;t{e.addEventListener(this,i,s),t[i]=s},s=(t,e,i)=>{t.offsetX=e,t.offsetY=i,this._eventHandler(t)};Q(this.options.events,(t=>i(t,s)))}bindResponsiveEvents(){this._responsiveListeners||(this._responsiveListeners={});const t=this._responsiveListeners,e=this.platform,i=(i,s)=>{e.addEventListener(this,i,s),t[i]=s},s=(i,s)=>{t[i]&&(e.removeEventListener(this,i,s),delete t[i])},n=(t,e)=>{this.canvas&&this.resize(t,e)};let o;const a=()=>{s("attach",a),this.attached=!0,this.resize(),i("resize",n),i("detach",o)};o=()=>{this.attached=!1,s("resize",n),this._stop(),this._resize(0,0),i("attach",a)},e.isAttached(this.canvas)?a():o()}unbindEvents(){Q(this._listeners,((t,e)=>{this.platform.removeEventListener(this,e,t)})),this._listeners={},Q(this._responsiveListeners,((t,e)=>{this.platform.removeEventListener(this,e,t)})),this._responsiveListeners=void 0}updateHoverStyle(t,e,i){const s=i?"set":"remove";let n,o,a,r;for("dataset"===e&&(n=this.getDatasetMeta(t[0].datasetIndex),n.controller["_"+s+"DatasetHoverStyle"]()),a=0,r=t.length;a{const i=this.getDatasetMeta(t);if(!i)throw new Error("No dataset found at index "+t);return{datasetIndex:t,element:i.data[e],index:e}}));!tt(i,e)&&(this._active=i,this._lastEvent=null,this._updateHoverStyles(i,e))}notifyPlugins(t,e,i){return this._plugins.notify(this,t,e,i)}_updateHoverStyles(t,e,i){const s=this.options.hover,n=(t,e)=>t.filter((t=>!e.some((e=>t.datasetIndex===e.datasetIndex&&t.index===e.index)))),o=n(e,t),a=i?t:n(t,e);o.length&&this.updateHoverStyle(o,s.mode,!1),a.length&&s.mode&&this.updateHoverStyle(a,s.mode,!0)}_eventHandler(t,e){const i={event:t,replay:e,cancelable:!0,inChartArea:Jt(t,this.chartArea,this._minPadding)},s=e=>(e.options.events||this.options.events).includes(t.native.type);if(!1===this.notifyPlugins("beforeEvent",i,s))return;const n=this._handleEvent(t,e,i.inChartArea);return i.cancelable=!1,this.notifyPlugins("afterEvent",i,s),(n||i.changed)&&this.render(),this}_handleEvent(t,e,i){const{_active:s=[],options:n}=this,o=e,a=this._getActiveElements(t,s,i,o),r=ft(t),l=function(t,e,i,s){return i&&"mouseout"!==t.type?s?e:t:null}(t,this._lastEvent,i,r);i&&(this._lastEvent=null,J(n.onHover,[t,a,this],this),r&&J(n.onClick,[t,a,this],this));const h=!tt(a,s);return(h||e)&&(this._active=a,this._updateHoverStyles(a,s,e)),this._lastEvent=l,h}_getActiveElements(t,e,i,s){if("mouseout"===t.type)return[];if(!i)return e;const n=this.options.hover;return this.getElementsAtEventForMode(t,n.mode,n,s)}}const un=()=>Q(dn.instances,(t=>t._plugins.invalidate())),fn=!0;function gn(){throw new Error("This method is not implemented: Check that a complete date adapter is provided.")}Object.defineProperties(dn,{defaults:{enumerable:fn,value:bt},instances:{enumerable:fn,value:ln},overrides:{enumerable:fn,value:gt},registry:{enumerable:fn,value:Ws},version:{enumerable:fn,value:"3.7.0"},getChart:{enumerable:fn,value:hn},register:{enumerable:fn,value:(...t)=>{Ws.add(...t),un()}},unregister:{enumerable:fn,value:(...t)=>{Ws.remove(...t),un()}}});class pn{constructor(t){this.options=t||{}}formats(){return gn()}parse(t,e){return gn()}format(t,e){return gn()}add(t,e,i){return gn()}diff(t,e,i){return gn()}startOf(t,e,i){return gn()}endOf(t,e){return gn()}}pn.override=function(t){Object.assign(pn.prototype,t)};var mn={_date:pn};function xn(t){const e=t.iScale,i=function(t,e){if(!t._cache.$bar){const i=t.getMatchingVisibleMetas(e);let s=[];for(let e=0,n=i.length;et-e)))}return t._cache.$bar}(e,t.type);let s,n,o,a,r=e._length;const l=()=>{32767!==o&&-32768!==o&&(ct(a)&&(r=Math.min(r,Math.abs(o-a)||r)),a=o)};for(s=0,n=i.length;sMath.abs(r)&&(l=r,h=a),e[i.axis]=h,e._custom={barStart:l,barEnd:h,start:n,end:o,min:a,max:r}}(t,e,i,s):e[i.axis]=i.parse(t,s),e}function _n(t,e,i,s){const n=t.iScale,o=t.vScale,a=n.getLabels(),r=n===o,l=[];let h,c,d,u;for(h=i,c=i+s;ht.x,i="left",s="right"):(e=t.base=i?1:-1)}(c,e,o)*n,d===o&&(p-=c/2),h=p+c),p===e.getPixelForValue(o)){const t=Ct(c)*e.getLineWidthForValue(o)/2;p+=t,c-=t}return{size:c,base:p,head:h,center:h+c/2}}_calculateBarIndexPixels(t,e){const i=e.scale,s=this.options,n=s.skipNull,o=K(s.maxBarThickness,1/0);let a,r;if(e.grouped){const i=n?this._getStackCount(t):e.stackCount,l="flex"===s.barThickness?function(t,e,i,s){const n=e.pixels,o=n[t];let a=t>0?n[t-1]:null,r=t=0;--i)e=Math.max(e,t[i].size(this.resolveDataElementOptions(i))/2);return e>0&&e}getLabelAndValue(t){const e=this._cachedMeta,{xScale:i,yScale:s}=e,n=this.getParsed(t),o=i.getLabelForValue(n.x),a=s.getLabelForValue(n.y),r=n._custom;return{label:e.label,value:"("+o+", "+a+(r?", "+r:"")+")"}}update(t){const e=this._cachedMeta.data;this.updateElements(e,0,e.length,t)}updateElements(t,e,i,s){const n="reset"===s,{iScale:o,vScale:a}=this._cachedMeta,r=this.resolveDataElementOptions(e,s),l=this.getSharedOptions(r),h=this.includeOptions(s,l),c=o.axis,d=a.axis;for(let r=e;r""}}}};class Dn extends Ps{constructor(t,e){super(t,e),this.enableOptionSharing=!0,this.innerRadius=void 0,this.outerRadius=void 0,this.offsetX=void 0,this.offsetY=void 0}linkScales(){}parse(t,e){const i=this.getDataset().data,s=this._cachedMeta;if(!1===this._parsing)s._parsed=i;else{let n,o,a=t=>+i[t];if(U(i[t])){const{key:t="value"}=this._parsing;a=e=>+lt(i[e],t)}for(n=t,o=t+e;nHt(t,r,l,!0)?1:Math.max(e,e*i,s,s*i),g=(t,e,s)=>Ht(t,r,l,!0)?-1:Math.min(e,e*i,s,s*i),p=f(0,h,d),m=f(kt,c,u),x=g(_t,h,d),b=g(_t+kt,c,u);s=(p-x)/2,n=(m-b)/2,o=-(p+x)/2,a=-(m+b)/2}return{ratioX:s,ratioY:n,offsetX:o,offsetY:a}}(c,h,r),p=(i.width-o)/d,m=(i.height-o)/u,x=Math.max(Math.min(p,m)/2,0),b=Z(this.options.radius,x),_=(b-Math.max(b*r,0))/this._getVisibleDatasetWeightTotal();this.offsetX=f*b,this.offsetY=g*b,s.total=this.calculateTotal(),this.outerRadius=b-_*this._getRingWeightOffset(this.index),this.innerRadius=Math.max(this.outerRadius-_*l,0),this.updateElements(n,0,n.length,t)}_circumference(t,e){const i=this.options,s=this._cachedMeta,n=this._getCircumference();return e&&i.animation.animateRotate||!this.chart.getDataVisibility(t)||null===s._parsed[t]||s.data[t].hidden?0:this.calculateCircumference(s._parsed[t]*n/yt)}updateElements(t,e,i,s){const n="reset"===s,o=this.chart,a=o.chartArea,r=o.options.animation,l=(a.left+a.right)/2,h=(a.top+a.bottom)/2,c=n&&r.animateScale,d=c?0:this.innerRadius,u=c?0:this.outerRadius,f=this.resolveDataElementOptions(e,s),g=this.getSharedOptions(f),p=this.includeOptions(s,g);let m,x=this._getRotation();for(m=0;m0&&!isNaN(t)?yt*(Math.abs(t)/e):0}getLabelAndValue(t){const e=this._cachedMeta,i=this.chart,s=i.data.labels||[],n=Ri(e._parsed[t],i.options.locale);return{label:s[t]||"",value:n}}getMaxBorderWidth(t){let e=0;const i=this.chart;let s,n,o,a,r;if(!t)for(s=0,n=i.data.datasets.length;s"spacing"!==t,_indexable:t=>"spacing"!==t},Dn.overrides={aspectRatio:1,plugins:{legend:{labels:{generateLabels(t){const e=t.data;if(e.labels.length&&e.datasets.length){const{labels:{pointStyle:i}}=t.legend.options;return e.labels.map(((e,s)=>{const n=t.getDatasetMeta(0).controller.getStyle(s);return{text:e,fillStyle:n.backgroundColor,strokeStyle:n.borderColor,lineWidth:n.borderWidth,pointStyle:i,hidden:!t.getDataVisibility(s),index:s}}))}return[]}},onClick(t,e,i){i.chart.toggleDataVisibility(e.index),i.chart.update()}},tooltip:{callbacks:{title:()=>"",label(t){let e=t.label;const i=": "+t.formattedValue;return Y(e)?(e=e.slice(),e[0]+=i):e+=i,e}}}}};class Cn extends Ps{initialize(){this.enableOptionSharing=!0,super.initialize()}update(t){const e=this._cachedMeta,{dataset:i,data:s=[],_dataset:n}=e,o=this.chart._animationsDisabled;let{start:a,count:r}=function(t,e,i){const s=e.length;let n=0,o=s;if(t._sorted){const{iScale:a,_parsed:r}=t,l=a.axis,{min:h,max:c,minDefined:d,maxDefined:u}=a.getUserBounds();d&&(n=jt(Math.min(re(r,a.axis,h).lo,i?s:re(e,l,a.getPixelForValue(h)).lo),0,s-1)),o=u?jt(Math.max(re(r,a.axis,c).hi+1,i?0:re(e,l,a.getPixelForValue(c)).hi+1),n,s)-n:s-n}return{start:n,count:o}}(e,s,o);this._drawStart=a,this._drawCount=r,function(t){const{xScale:e,yScale:i,_scaleRanges:s}=t,n={xmin:e.min,xmax:e.max,ymin:i.min,ymax:i.max};if(!s)return t._scaleRanges=n,!0;const o=s.xmin!==e.min||s.xmax!==e.max||s.ymin!==i.min||s.ymax!==i.max;return Object.assign(s,n),o}(e)&&(a=0,r=s.length),i._chart=this.chart,i._datasetIndex=this.index,i._decimated=!!n._decimated,i.points=s;const l=this.resolveDatasetElementOptions(t);this.options.showLine||(l.borderWidth=0),l.segment=this.options.segment,this.updateElement(i,void 0,{animated:!o,options:l},t),this.updateElements(s,a,r,t)}updateElements(t,e,i,s){const n="reset"===s,{iScale:o,vScale:a,_stacked:r,_dataset:l}=this._cachedMeta,h=this.resolveDataElementOptions(e,s),c=this.getSharedOptions(h),d=this.includeOptions(s,c),u=o.axis,f=a.axis,{spanGaps:g,segment:p}=this.options,m=Tt(g)?g:Number.POSITIVE_INFINITY,x=this.chart._animationsDisabled||n||"none"===s;let b=e>0&&this.getParsed(e-1);for(let h=e;h0&&i[u]-b[u]>m,p&&(g.parsed=i,g.raw=l.data[h]),d&&(g.options=c||this.resolveDataElementOptions(h,e.active?"active":s)),x||this.updateElement(e,h,g,s),b=i}this.updateSharedOptions(c,s,h)}getMaxOverflow(){const t=this._cachedMeta,e=t.dataset,i=e.options&&e.options.borderWidth||0,s=t.data||[];if(!s.length)return i;const n=s[0].size(this.resolveDataElementOptions(0)),o=s[s.length-1].size(this.resolveDataElementOptions(s.length-1));return Math.max(i,n,o)/2}draw(){const t=this._cachedMeta;t.dataset.updateControlPoints(this.chart.chartArea,t.iScale.axis),super.draw()}}Cn.id="line",Cn.defaults={datasetElementType:"line",dataElementType:"point",showLine:!0,spanGaps:!1},Cn.overrides={scales:{_index_:{type:"category"},_value_:{type:"linear"}}};class On extends Ps{constructor(t,e){super(t,e),this.innerRadius=void 0,this.outerRadius=void 0}getLabelAndValue(t){const e=this._cachedMeta,i=this.chart,s=i.data.labels||[],n=Ri(e._parsed[t].r,i.options.locale);return{label:s[t]||"",value:n}}update(t){const e=this._cachedMeta.data;this._updateRadius(),this.updateElements(e,0,e.length,t)}_updateRadius(){const t=this.chart,e=t.chartArea,i=t.options,s=Math.min(e.right-e.left,e.bottom-e.top),n=Math.max(s/2,0),o=(n-Math.max(i.cutoutPercentage?n/100*i.cutoutPercentage:1,0))/t.getVisibleDatasetCount();this.outerRadius=n-o*this.index,this.innerRadius=this.outerRadius-o}updateElements(t,e,i,s){const n="reset"===s,o=this.chart,a=this.getDataset(),r=o.options.animation,l=this._cachedMeta.rScale,h=l.xCenter,c=l.yCenter,d=l.getIndexAngle(0)-.5*_t;let u,f=d;const g=360/this.countVisibleElements();for(u=0;u{!isNaN(t.data[s])&&this.chart.getDataVisibility(s)&&i++})),i}_computeAngle(t,e,i){return this.chart.getDataVisibility(t)?It(this.resolveDataElementOptions(t,e).angle||i):0}}On.id="polarArea",On.defaults={dataElementType:"arc",animation:{animateRotate:!0,animateScale:!0},animations:{numbers:{type:"number",properties:["x","y","startAngle","endAngle","innerRadius","outerRadius"]}},indexAxis:"r",startAngle:0},On.overrides={aspectRatio:1,plugins:{legend:{labels:{generateLabels(t){const e=t.data;if(e.labels.length&&e.datasets.length){const{labels:{pointStyle:i}}=t.legend.options;return e.labels.map(((e,s)=>{const n=t.getDatasetMeta(0).controller.getStyle(s);return{text:e,fillStyle:n.backgroundColor,strokeStyle:n.borderColor,lineWidth:n.borderWidth,pointStyle:i,hidden:!t.getDataVisibility(s),index:s}}))}return[]}},onClick(t,e,i){i.chart.toggleDataVisibility(e.index),i.chart.update()}},tooltip:{callbacks:{title:()=>"",label:t=>t.chart.data.labels[t.dataIndex]+": "+t.formattedValue}}},scales:{r:{type:"radialLinear",angleLines:{display:!1},beginAtZero:!0,grid:{circular:!0},pointLabels:{display:!1},startAngle:0}}};class An extends Dn{}An.id="pie",An.defaults={cutout:0,rotation:0,circumference:360,radius:"100%"};class Tn extends Ps{getLabelAndValue(t){const e=this._cachedMeta.vScale,i=this.getParsed(t);return{label:e.getLabels()[t],value:""+e.getLabelForValue(i[e.axis])}}update(t){const e=this._cachedMeta,i=e.dataset,s=e.data||[],n=e.iScale.getLabels();if(i.points=s,"resize"!==t){const e=this.resolveDatasetElementOptions(t);this.options.showLine||(e.borderWidth=0);const o={_loop:!0,_fullLoop:n.length===s.length,options:e};this.updateElement(i,void 0,o,t)}this.updateElements(s,0,s.length,t)}updateElements(t,e,i,s){const n=this.getDataset(),o=this._cachedMeta.rScale,a="reset"===s;for(let r=e;r"",label:t=>"("+t.label+", "+t.formattedValue+")"}}},scales:{x:{type:"linear"},y:{type:"linear"}}};var Rn=Object.freeze({__proto__:null,BarController:Sn,BubbleController:Pn,DoughnutController:Dn,LineController:Cn,PolarAreaController:On,PieController:An,RadarController:Tn,ScatterController:Ln});function En(t,e,i){const{startAngle:s,pixelMargin:n,x:o,y:a,outerRadius:r,innerRadius:l}=e;let h=n/r;t.beginPath(),t.arc(o,a,r,s-h,i+h),l>n?(h=n/l,t.arc(o,a,l,i+h,s-h,!0)):t.arc(o,a,n,i+kt,s-kt),t.closePath(),t.clip()}function In(t,e,i,s){const n=Be(t.options.borderRadius,["outerStart","outerEnd","innerStart","innerEnd"]);const o=(i-e)/2,a=Math.min(o,s*e/2),r=t=>{const e=(i-Math.min(o,t))*s/2;return jt(t,0,Math.min(o,e))};return{outerStart:r(n.outerStart),outerEnd:r(n.outerEnd),innerStart:jt(n.innerStart,0,a),innerEnd:jt(n.innerEnd,0,a)}}function zn(t,e,i,s){return{x:i+t*Math.cos(e),y:s+t*Math.sin(e)}}function Fn(t,e,i,s,n){const{x:o,y:a,startAngle:r,pixelMargin:l,innerRadius:h}=e,c=Math.max(e.outerRadius+s+i-l,0),d=h>0?h+s+i+l:0;let u=0;const f=n-r;if(s){const t=((h>0?h-s:0)+(c>0?c-s:0))/2;u=(f-(0!==t?f*t/(t+s):f))/2}const g=(f-Math.max(.001,f*c-i/_t)/c)/2,p=r+g+u,m=n-g-u,{outerStart:x,outerEnd:b,innerStart:_,innerEnd:y}=In(e,d,c,m-p),v=c-x,w=c-b,M=p+x/v,k=m-b/w,S=d+_,P=d+y,D=p+_/S,C=m-y/P;if(t.beginPath(),t.arc(o,a,c,M,k),b>0){const e=zn(w,k,o,a);t.arc(e.x,e.y,b,k,m+kt)}const O=zn(P,m,o,a);if(t.lineTo(O.x,O.y),y>0){const e=zn(P,C,o,a);t.arc(e.x,e.y,y,m+kt,C+Math.PI)}if(t.arc(o,a,d,m-y/d,p+_/d,!0),_>0){const e=zn(S,D,o,a);t.arc(e.x,e.y,_,D+Math.PI,p-kt)}const A=zn(v,p,o,a);if(t.lineTo(A.x,A.y),x>0){const e=zn(v,M,o,a);t.arc(e.x,e.y,x,p-kt,M)}t.closePath()}function Bn(t,e,i,s,n){const{options:o}=e,{borderWidth:a,borderJoinStyle:r}=o,l="inner"===o.borderAlign;a&&(l?(t.lineWidth=2*a,t.lineJoin=r||"round"):(t.lineWidth=a,t.lineJoin=r||"bevel"),e.fullCircles&&function(t,e,i){const{x:s,y:n,startAngle:o,pixelMargin:a,fullCircles:r}=e,l=Math.max(e.outerRadius-a,0),h=e.innerRadius+a;let c;for(i&&En(t,e,o+yt),t.beginPath(),t.arc(s,n,h,o+yt,o,!0),c=0;c=yt||Ht(n,a,r),f=Yt(o,l+d,h+d);return u&&f}getCenterPoint(t){const{x:e,y:i,startAngle:s,endAngle:n,innerRadius:o,outerRadius:a}=this.getProps(["x","y","startAngle","endAngle","innerRadius","outerRadius","circumference"],t),{offset:r,spacing:l}=this.options,h=(s+n)/2,c=(o+a+l+r)/2;return{x:e+Math.cos(h)*c,y:i+Math.sin(h)*c}}tooltipPosition(t){return this.getCenterPoint(t)}draw(t){const{options:e,circumference:i}=this,s=(e.offset||0)/2,n=(e.spacing||0)/2;if(this.pixelMargin="inner"===e.borderAlign?.33:0,this.fullCircles=i>yt?Math.floor(i/yt):0,0===i||this.innerRadius<0||this.outerRadius<0)return;t.save();let o=0;if(s){o=s/2;const e=(this.startAngle+this.endAngle)/2;t.translate(Math.cos(e)*o,Math.sin(e)*o),this.circumference>=_t&&(o=s)}t.fillStyle=e.backgroundColor,t.strokeStyle=e.borderColor;const a=function(t,e,i,s){const{fullCircles:n,startAngle:o,circumference:a}=e;let r=e.endAngle;if(n){Fn(t,e,i,s,o+yt);for(let e=0;er&&o>r;return{count:s,start:l,loop:e.loop,ilen:h(a+(h?r-t:t))%o,_=()=>{f!==g&&(t.lineTo(m,g),t.lineTo(m,f),t.lineTo(m,p))};for(l&&(d=n[b(0)],t.moveTo(d.x,d.y)),c=0;c<=r;++c){if(d=n[b(c)],d.skip)continue;const e=d.x,i=d.y,s=0|e;s===u?(ig&&(g=i),m=(x*m+e)/++x):(_(),t.lineTo(e,i),u=s,x=0,f=g=i),p=i}_()}function Yn(t){const e=t.options,i=e.borderDash&&e.borderDash.length;return!(t._decimated||t._loop||e.tension||"monotone"===e.cubicInterpolationMode||e.stepped||i)?$n:jn}Vn.id="arc",Vn.defaults={borderAlign:"center",borderColor:"#fff",borderJoinStyle:void 0,borderRadius:0,borderWidth:2,offset:0,spacing:0,angle:void 0},Vn.defaultRoutes={backgroundColor:"backgroundColor"};const Un="function"==typeof Path2D;function Xn(t,e,i,s){Un&&!e.options.segment?function(t,e,i,s){let n=e._path;n||(n=e._path=new Path2D,e.path(n,i,s)&&n.closePath()),Wn(t,e.options),t.stroke(n)}(t,e,i,s):function(t,e,i,s){const{segments:n,options:o}=e,a=Yn(e);for(const r of n)Wn(t,o,r.style),t.beginPath(),a(t,e,r,{start:i,end:i+s-1})&&t.closePath(),t.stroke()}(t,e,i,s)}class qn extends Ds{constructor(t){super(),this.animated=!0,this.options=void 0,this._chart=void 0,this._loop=void 0,this._fullLoop=void 0,this._path=void 0,this._points=void 0,this._segments=void 0,this._decimated=!1,this._pointsUpdated=!1,this._datasetIndex=void 0,t&&Object.assign(this,t)}updateControlPoints(t,e){const i=this.options;if((i.tension||"monotone"===i.cubicInterpolationMode)&&!i.stepped&&!this._pointsUpdated){const s=i.spanGaps?this._loop:this._fullLoop;ki(this._points,i,t,s,e),this._pointsUpdated=!0}}set points(t){this._points=t,delete this._segments,delete this._path,this._pointsUpdated=!1}get points(){return 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ho{constructor(t){this.x=t.x,this.y=t.y,this.radius=t.radius}pathSegment(t,e,i){const{x:s,y:n,radius:o}=this;return e=e||{start:0,end:yt},t.arc(s,n,o,e.end,e.start,!0),!i.bounds}interpolate(t){const{x:e,y:i,radius:s}=this,n=t.angle;return{x:e+Math.cos(n)*s,y:i+Math.sin(n)*s,angle:n}}}function co(t){return(t.scale||{}).getPointPositionForValue?function(t){const{scale:e,fill:i}=t,s=e.options,n=e.getLabels().length,o=[],a=s.reverse?e.max:e.min,r=s.reverse?e.min:e.max;let l,h,c;if(c="start"===i?a:"end"===i?r:U(i)?i.value:e.getBaseValue(),s.grid.circular)return h=e.getPointPositionForValue(0,a),new ho({x:h.x,y:h.y,radius:e.getDistanceFromCenterForValue(c)});for(l=0;lt;e--){const t=i[e];if(!isNaN(t.x)&&!isNaN(t.y))break}return e}function fo(t,e,i){const s=[];for(let n=0;n{e=uo(t,e,n);const a=n[t],r=n[e];null!==s?(o.push({x:a.x,y:s}),o.push({x:r.x,y:s})):null!==i&&(o.push({x:i,y:a.y}),o.push({x:i,y:r.y}))})),o}(t,e),i.length?new 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s=po(e),{line:n,scale:o,axis:a}=e,r=n.options,l=r.fill,h=r.backgroundColor,{above:c=h,below:d=h}=l||{};s&&n.points.length&&(Qt(t,i),function(t,e){const{line:i,target:s,above:n,below:o,area:a,scale:r}=e,l=i._loop?"angle":e.axis;t.save(),"x"===l&&o!==n&&(bo(t,s,a.top),Mo(t,{line:i,target:s,color:n,scale:r,property:l}),t.restore(),t.save(),bo(t,s,a.bottom)),Mo(t,{line:i,target:s,color:o,scale:r,property:l}),t.restore()}(t,{line:n,target:s,above:c,below:d,area:i,scale:o,axis:a}),te(t))}var So={id:"filler",afterDatasetsUpdate(t,e,i){const s=(t.data.datasets||[]).length,n=[];let o,a,r,l;for(a=0;a=0;--e){const i=n[e].$filler;i&&(i.line.updateControlPoints(o,i.axis),s&&ko(t.ctx,i,o))}},beforeDatasetsDraw(t,e,i){if("beforeDatasetsDraw"!==i.drawTime)return;const s=t.getSortedVisibleDatasetMetas();for(let e=s.length-1;e>=0;--e){const i=s[e].$filler;i&&ko(t.ctx,i,t.chartArea)}},beforeDatasetDraw(t,e,i){const s=e.meta.$filler;s&&!1!==s.fill&&"beforeDatasetDraw"===i.drawTime&&ko(t.ctx,s,t.chartArea)},defaults:{propagate:!0,drawTime:"beforeDatasetDraw"}};const Po=(t,e)=>{let{boxHeight:i=e,boxWidth:s=e}=t;return t.usePointStyle&&(i=Math.min(i,e),s=Math.min(s,e)),{boxWidth:s,boxHeight:i,itemHeight:Math.max(e,i)}};class Do extends Ds{constructor(t){super(),this._added=!1,this.legendHitBoxes=[],this._hoveredItem=null,this.doughnutMode=!1,this.chart=t.chart,this.options=t.options,this.ctx=t.ctx,this.legendItems=void 0,this.columnSizes=void 0,this.lineWidths=void 0,this.maxHeight=void 0,this.maxWidth=void 0,this.top=void 0,this.bottom=void 0,this.left=void 0,this.right=void 0,this.height=void 0,this.width=void 0,this._margins=void 0,this.position=void 0,this.weight=void 0,this.fullSize=void 0}update(t,e,i){this.maxWidth=t,this.maxHeight=e,this._margins=i,this.setDimensions(),this.buildLabels(),this.fit()}setDimensions(){this.isHorizontal()?(this.width=this.maxWidth,this.left=this._margins.left,this.right=this.width):(this.height=this.maxHeight,this.top=this._margins.top,this.bottom=this.height)}buildLabels(){const t=this.options.labels||{};let e=J(t.generateLabels,[this.chart],this)||[];t.filter&&(e=e.filter((e=>t.filter(e,this.chart.data)))),t.sort&&(e=e.sort(((e,i)=>t.sort(e,i,this.chart.data)))),this.options.reverse&&e.reverse(),this.legendItems=e}fit(){const{options:t,ctx:e}=this;if(!t.display)return void(this.width=this.height=0);const i=t.labels,s=He(i.font),n=s.size,o=this._computeTitleHeight(),{boxWidth:a,itemHeight:r}=Po(i,n);let l,h;e.font=s.string,this.isHorizontal()?(l=this.maxWidth,h=this._fitRows(o,n,a,r)+10):(h=this.maxHeight,l=this._fitCols(o,n,a,r)+10),this.width=Math.min(l,t.maxWidth||this.maxWidth),this.height=Math.min(h,t.maxHeight||this.maxHeight)}_fitRows(t,e,i,s){const{ctx:n,maxWidth:o,options:{labels:{padding:a}}}=this,r=this.legendHitBoxes=[],l=this.lineWidths=[0],h=s+a;let c=t;n.textAlign="left",n.textBaseline="middle";let d=-1,u=-h;return this.legendItems.forEach(((t,f)=>{const g=i+e/2+n.measureText(t.text).width;(0===f||l[l.length-1]+g+2*a>o)&&(c+=h,l[l.length-(f>0?0:1)]=0,u+=h,d++),r[f]={left:0,top:u,row:d,width:g,height:s},l[l.length-1]+=g+a})),c}_fitCols(t,e,i,s){const{ctx:n,maxHeight:o,options:{labels:{padding:a}}}=this,r=this.legendHitBoxes=[],l=this.columnSizes=[],h=o-t;let c=a,d=0,u=0,f=0,g=0;return this.legendItems.forEach(((t,o)=>{const p=i+e/2+n.measureText(t.text).width;o>0&&u+s+2*a>h&&(c+=d+a,l.push({width:d,height:u}),f+=d+a,g++,d=u=0),r[o]={left:f,top:u,col:g,width:p,height:s},d=Math.max(d,p),u+=s+a})),c+=d,l.push({width:d,height:u}),c}adjustHitBoxes(){if(!this.options.display)return;const t=this._computeTitleHeight(),{legendHitBoxes:e,options:{align:i,labels:{padding:s},rtl:o}}=this,a=Ei(o,this.left,this.width);if(this.isHorizontal()){let o=0,r=n(i,this.left+s,this.right-this.lineWidths[o]);for(const l of e)o!==l.row&&(o=l.row,r=n(i,this.left+s,this.right-this.lineWidths[o])),l.top+=this.top+t+s,l.left=a.leftForLtr(a.x(r),l.width),r+=l.width+s}else{let o=0,r=n(i,this.top+t+s,this.bottom-this.columnSizes[o].height);for(const l of e)l.col!==o&&(o=l.col,r=n(i,this.top+t+s,this.bottom-this.columnSizes[o].height)),l.top=r,l.left+=this.left+s,l.left=a.leftForLtr(a.x(l.left),l.width),r+=l.height+s}}isHorizontal(){return"top"===this.options.position||"bottom"===this.options.position}draw(){if(this.options.display){const t=this.ctx;Qt(t,this),this._draw(),te(t)}}_draw(){const{options:t,columnSizes:e,lineWidths:i,ctx:s}=this,{align:a,labels:r}=t,l=bt.color,h=Ei(t.rtl,this.left,this.width),c=He(r.font),{color:d,padding:u}=r,f=c.size,g=f/2;let p;this.drawTitle(),s.textAlign=h.textAlign("left"),s.textBaseline="middle",s.lineWidth=.5,s.font=c.string;const{boxWidth:m,boxHeight:x,itemHeight:b}=Po(r,f),_=this.isHorizontal(),y=this._computeTitleHeight();p=_?{x:n(a,this.left+u,this.right-i[0]),y:this.top+u+y,line:0}:{x:this.left+u,y:n(a,this.top+y+u,this.bottom-e[0].height),line:0},Ii(this.ctx,t.textDirection);const v=b+u;this.legendItems.forEach(((w,M)=>{s.strokeStyle=w.fontColor||d,s.fillStyle=w.fontColor||d;const k=s.measureText(w.text).width,S=h.textAlign(w.textAlign||(w.textAlign=r.textAlign)),P=m+g+k;let D=p.x,C=p.y;h.setWidth(this.width),_?M>0&&D+P+u>this.right&&(C=p.y+=v,p.line++,D=p.x=n(a,this.left+u,this.right-i[p.line])):M>0&&C+v>this.bottom&&(D=p.x=D+e[p.line].width+u,p.line++,C=p.y=n(a,this.top+y+u,this.bottom-e[p.line].height));!function(t,e,i){if(isNaN(m)||m<=0||isNaN(x)||x<0)return;s.save();const n=K(i.lineWidth,1);if(s.fillStyle=K(i.fillStyle,l),s.lineCap=K(i.lineCap,"butt"),s.lineDashOffset=K(i.lineDashOffset,0),s.lineJoin=K(i.lineJoin,"miter"),s.lineWidth=n,s.strokeStyle=K(i.strokeStyle,l),s.setLineDash(K(i.lineDash,[])),r.usePointStyle){const o={radius:m*Math.SQRT2/2,pointStyle:i.pointStyle,rotation:i.rotation,borderWidth:n},a=h.xPlus(t,m/2);Zt(s,o,a,e+g)}else{const o=e+Math.max((f-x)/2,0),a=h.leftForLtr(t,m),r=We(i.borderRadius);s.beginPath(),Object.values(r).some((t=>0!==t))?oe(s,{x:a,y:o,w:m,h:x,radius:r}):s.rect(a,o,m,x),s.fill(),0!==n&&s.stroke()}s.restore()}(h.x(D),C,w),D=o(S,D+m+g,_?D+P:this.right,t.rtl),function(t,e,i){se(s,i.text,t,e+b/2,c,{strikethrough:i.hidden,textAlign:h.textAlign(i.textAlign)})}(h.x(D),C,w),_?p.x+=P+u:p.y+=v})),zi(this.ctx,t.textDirection)}drawTitle(){const t=this.options,e=t.title,i=He(e.font),o=Ne(e.padding);if(!e.display)return;const a=Ei(t.rtl,this.left,this.width),r=this.ctx,l=e.position,h=i.size/2,c=o.top+h;let d,u=this.left,f=this.width;if(this.isHorizontal())f=Math.max(...this.lineWidths),d=this.top+c,u=n(t.align,u,this.right-f);else{const e=this.columnSizes.reduce(((t,e)=>Math.max(t,e.height)),0);d=c+n(t.align,this.top,this.bottom-e-t.labels.padding-this._computeTitleHeight())}const g=n(l,u,u+f);r.textAlign=a.textAlign(s(l)),r.textBaseline="middle",r.strokeStyle=e.color,r.fillStyle=e.color,r.font=i.string,se(r,e.text,g,d,i)}_computeTitleHeight(){const t=this.options.title,e=He(t.font),i=Ne(t.padding);return t.display?e.lineHeight+i.height:0}_getLegendItemAt(t,e){let i,s,n;if(Yt(t,this.left,this.right)&&Yt(e,this.top,this.bottom))for(n=this.legendHitBoxes,i=0;it.chart.options.color,boxWidth:40,padding:10,generateLabels(t){const e=t.data.datasets,{labels:{usePointStyle:i,pointStyle:s,textAlign:n,color:o}}=t.legend.options;return t._getSortedDatasetMetas().map((t=>{const a=t.controller.getStyle(i?0:void 0),r=Ne(a.borderWidth);return{text:e[t.index].label,fillStyle:a.backgroundColor,fontColor:o,hidden:!t.visible,lineCap:a.borderCapStyle,lineDash:a.borderDash,lineDashOffset:a.borderDashOffset,lineJoin:a.borderJoinStyle,lineWidth:(r.width+r.height)/4,strokeStyle:a.borderColor,pointStyle:s||a.pointStyle,rotation:a.rotation,textAlign:n||a.textAlign,borderRadius:0,datasetIndex:t.index}}),this)}},title:{color:t=>t.chart.options.color,display:!1,position:"center",text:""}},descriptors:{_scriptable:t=>!t.startsWith("on"),labels:{_scriptable:t=>!["generateLabels","filter","sort"].includes(t)}}};class Oo extends Ds{constructor(t){super(),this.chart=t.chart,this.options=t.options,this.ctx=t.ctx,this._padding=void 0,this.top=void 0,this.bottom=void 0,this.left=void 0,this.right=void 0,this.width=void 0,this.height=void 0,this.position=void 0,this.weight=void 0,this.fullSize=void 0}update(t,e){const i=this.options;if(this.left=0,this.top=0,!i.display)return void(this.width=this.height=this.right=this.bottom=0);this.width=this.right=t,this.height=this.bottom=e;const s=Y(i.text)?i.text.length:1;this._padding=Ne(i.padding);const n=s*He(i.font).lineHeight+this._padding.height;this.isHorizontal()?this.height=n:this.width=n}isHorizontal(){const t=this.options.position;return"top"===t||"bottom"===t}_drawArgs(t){const{top:e,left:i,bottom:s,right:o,options:a}=this,r=a.align;let l,h,c,d=0;return this.isHorizontal()?(h=n(r,i,o),c=e+t,l=o-i):("left"===a.position?(h=i+t,c=n(r,s,e),d=-.5*_t):(h=o-t,c=n(r,e,s),d=.5*_t),l=s-e),{titleX:h,titleY:c,maxWidth:l,rotation:d}}draw(){const t=this.ctx,e=this.options;if(!e.display)return;const i=He(e.font),n=i.lineHeight/2+this._padding.top,{titleX:o,titleY:a,maxWidth:r,rotation:l}=this._drawArgs(n);se(t,e.text,0,0,i,{color:e.color,maxWidth:r,rotation:l,textAlign:s(e.align),textBaseline:"middle",translation:[o,a]})}}var Ao={id:"title",_element:Oo,start(t,e,i){!function(t,e){const i=new Oo({ctx:t.ctx,options:e,chart:t});ni.configure(t,i,e),ni.addBox(t,i),t.titleBlock=i}(t,i)},stop(t){const e=t.titleBlock;ni.removeBox(t,e),delete t.titleBlock},beforeUpdate(t,e,i){const s=t.titleBlock;ni.configure(t,s,i),s.options=i},defaults:{align:"center",display:!1,font:{weight:"bold"},fullSize:!0,padding:10,position:"top",text:"",weight:2e3},defaultRoutes:{color:"color"},descriptors:{_scriptable:!0,_indexable:!1}};const To=new WeakMap;var Lo={id:"subtitle",start(t,e,i){const s=new Oo({ctx:t.ctx,options:i,chart:t});ni.configure(t,s,i),ni.addBox(t,s),To.set(t,s)},stop(t){ni.removeBox(t,To.get(t)),To.delete(t)},beforeUpdate(t,e,i){const s=To.get(t);ni.configure(t,s,i),s.options=i},defaults:{align:"center",display:!1,font:{weight:"normal"},fullSize:!0,padding:0,position:"top",text:"",weight:1500},defaultRoutes:{color:"color"},descriptors:{_scriptable:!0,_indexable:!1}};const Ro={average(t){if(!t.length)return!1;let e,i,s=0,n=0,o=0;for(e=0,i=t.length;e-1?t.split("\n"):t}function zo(t,e){const{element:i,datasetIndex:s,index:n}=e,o=t.getDatasetMeta(s).controller,{label:a,value:r}=o.getLabelAndValue(n);return{chart:t,label:a,parsed:o.getParsed(n),raw:t.data.datasets[s].data[n],formattedValue:r,dataset:o.getDataset(),dataIndex:n,datasetIndex:s,element:i}}function Fo(t,e){const i=t.chart.ctx,{body:s,footer:n,title:o}=t,{boxWidth:a,boxHeight:r}=e,l=He(e.bodyFont),h=He(e.titleFont),c=He(e.footerFont),d=o.length,u=n.length,f=s.length,g=Ne(e.padding);let p=g.height,m=0,x=s.reduce(((t,e)=>t+e.before.length+e.lines.length+e.after.length),0);if(x+=t.beforeBody.length+t.afterBody.length,d&&(p+=d*h.lineHeight+(d-1)*e.titleSpacing+e.titleMarginBottom),x){p+=f*(e.displayColors?Math.max(r,l.lineHeight):l.lineHeight)+(x-f)*l.lineHeight+(x-1)*e.bodySpacing}u&&(p+=e.footerMarginTop+u*c.lineHeight+(u-1)*e.footerSpacing);let b=0;const _=function(t){m=Math.max(m,i.measureText(t).width+b)};return i.save(),i.font=h.string,Q(t.title,_),i.font=l.string,Q(t.beforeBody.concat(t.afterBody),_),b=e.displayColors?a+2+e.boxPadding:0,Q(s,(t=>{Q(t.before,_),Q(t.lines,_),Q(t.after,_)})),b=0,i.font=c.string,Q(t.footer,_),i.restore(),m+=g.width,{width:m,height:p}}function Bo(t,e,i,s){const{x:n,width:o}=i,{width:a,chartArea:{left:r,right:l}}=t;let h="center";return"center"===s?h=n<=(r+l)/2?"left":"right":n<=o/2?h="left":n>=a-o/2&&(h="right"),function(t,e,i,s){const{x:n,width:o}=s,a=i.caretSize+i.caretPadding;return"left"===t&&n+o+a>e.width||"right"===t&&n-o-a<0||void 0}(h,t,e,i)&&(h="center"),h}function Vo(t,e,i){const s=i.yAlign||e.yAlign||function(t,e){const{y:i,height:s}=e;return it.height-s/2?"bottom":"center"}(t,i);return{xAlign:i.xAlign||e.xAlign||Bo(t,e,i,s),yAlign:s}}function Wo(t,e,i,s){const{caretSize:n,caretPadding:o,cornerRadius:a}=t,{xAlign:r,yAlign:l}=i,h=n+o,{topLeft:c,topRight:d,bottomLeft:u,bottomRight:f}=We(a);let g=function(t,e){let{x:i,width:s}=t;return"right"===e?i-=s:"center"===e&&(i-=s/2),i}(e,r);const p=function(t,e,i){let{y:s,height:n}=t;return"top"===e?s+=i:s-="bottom"===e?n+i:n/2,s}(e,l,h);return"center"===l?"left"===r?g+=h:"right"===r&&(g-=h):"left"===r?g-=Math.max(c,u)+n:"right"===r&&(g+=Math.max(d,f)+n),{x:jt(g,0,s.width-e.width),y:jt(p,0,s.height-e.height)}}function No(t,e,i){const s=Ne(i.padding);return"center"===e?t.x+t.width/2:"right"===e?t.x+t.width-s.right:t.x+s.left}function Ho(t){return Eo([],Io(t))}function jo(t,e){const i=e&&e.dataset&&e.dataset.tooltip&&e.dataset.tooltip.callbacks;return i?t.override(i):t}class $o extends Ds{constructor(t){super(),this.opacity=0,this._active=[],this._eventPosition=void 0,this._size=void 0,this._cachedAnimations=void 0,this._tooltipItems=[],this.$animations=void 0,this.$context=void 0,this.chart=t.chart||t._chart,this._chart=this.chart,this.options=t.options,this.dataPoints=void 0,this.title=void 0,this.beforeBody=void 0,this.body=void 0,this.afterBody=void 0,this.footer=void 0,this.xAlign=void 0,this.yAlign=void 0,this.x=void 0,this.y=void 0,this.height=void 0,this.width=void 0,this.caretX=void 0,this.caretY=void 0,this.labelColors=void 0,this.labelPointStyles=void 0,this.labelTextColors=void 0}initialize(t){this.options=t,this._cachedAnimations=void 0,this.$context=void 0}_resolveAnimations(){const t=this._cachedAnimations;if(t)return t;const e=this.chart,i=this.options.setContext(this.getContext()),s=i.enabled&&e.options.animation&&i.animations,n=new gs(this.chart,s);return s._cacheable&&(this._cachedAnimations=Object.freeze(n)),n}getContext(){return this.$context||(this.$context=(t=this.chart.getContext(),e=this,i=this._tooltipItems,Ye(t,{tooltip:e,tooltipItems:i,type:"tooltip"})));var t,e,i}getTitle(t,e){const{callbacks:i}=e,s=i.beforeTitle.apply(this,[t]),n=i.title.apply(this,[t]),o=i.afterTitle.apply(this,[t]);let a=[];return a=Eo(a,Io(s)),a=Eo(a,Io(n)),a=Eo(a,Io(o)),a}getBeforeBody(t,e){return Ho(e.callbacks.beforeBody.apply(this,[t]))}getBody(t,e){const{callbacks:i}=e,s=[];return Q(t,(t=>{const e={before:[],lines:[],after:[]},n=jo(i,t);Eo(e.before,Io(n.beforeLabel.call(this,t))),Eo(e.lines,n.label.call(this,t)),Eo(e.after,Io(n.afterLabel.call(this,t))),s.push(e)})),s}getAfterBody(t,e){return Ho(e.callbacks.afterBody.apply(this,[t]))}getFooter(t,e){const{callbacks:i}=e,s=i.beforeFooter.apply(this,[t]),n=i.footer.apply(this,[t]),o=i.afterFooter.apply(this,[t]);let a=[];return a=Eo(a,Io(s)),a=Eo(a,Io(n)),a=Eo(a,Io(o)),a}_createItems(t){const e=this._active,i=this.chart.data,s=[],n=[],o=[];let a,r,l=[];for(a=0,r=e.length;at.filter(e,s,n,i)))),t.itemSort&&(l=l.sort(((e,s)=>t.itemSort(e,s,i)))),Q(l,(e=>{const i=jo(t.callbacks,e);s.push(i.labelColor.call(this,e)),n.push(i.labelPointStyle.call(this,e)),o.push(i.labelTextColor.call(this,e))})),this.labelColors=s,this.labelPointStyles=n,this.labelTextColors=o,this.dataPoints=l,l}update(t,e){const i=this.options.setContext(this.getContext()),s=this._active;let n,o=[];if(s.length){const t=Ro[i.position].call(this,s,this._eventPosition);o=this._createItems(i),this.title=this.getTitle(o,i),this.beforeBody=this.getBeforeBody(o,i),this.body=this.getBody(o,i),this.afterBody=this.getAfterBody(o,i),this.footer=this.getFooter(o,i);const e=this._size=Fo(this,i),a=Object.assign({},t,e),r=Vo(this.chart,i,a),l=Wo(i,a,r,this.chart);this.xAlign=r.xAlign,this.yAlign=r.yAlign,n={opacity:1,x:l.x,y:l.y,width:e.width,height:e.height,caretX:t.x,caretY:t.y}}else 0!==this.opacity&&(n={opacity:0});this._tooltipItems=o,this.$context=void 0,n&&this._resolveAnimations().update(this,n),t&&i.external&&i.external.call(this,{chart:this.chart,tooltip:this,replay:e})}drawCaret(t,e,i,s){const n=this.getCaretPosition(t,i,s);e.lineTo(n.x1,n.y1),e.lineTo(n.x2,n.y2),e.lineTo(n.x3,n.y3)}getCaretPosition(t,e,i){const{xAlign:s,yAlign:n}=this,{caretSize:o,cornerRadius:a}=i,{topLeft:r,topRight:l,bottomLeft:h,bottomRight:c}=We(a),{x:d,y:u}=t,{width:f,height:g}=e;let p,m,x,b,_,y;return"center"===n?(_=u+g/2,"left"===s?(p=d,m=p-o,b=_+o,y=_-o):(p=d+f,m=p+o,b=_-o,y=_+o),x=p):(m="left"===s?d+Math.max(r,h)+o:"right"===s?d+f-Math.max(l,c)-o:this.caretX,"top"===n?(b=u,_=b-o,p=m-o,x=m+o):(b=u+g,_=b+o,p=m+o,x=m-o),y=b),{x1:p,x2:m,x3:x,y1:b,y2:_,y3:y}}drawTitle(t,e,i){const s=this.title,n=s.length;let o,a,r;if(n){const l=Ei(i.rtl,this.x,this.width);for(t.x=No(this,i.titleAlign,i),e.textAlign=l.textAlign(i.titleAlign),e.textBaseline="middle",o=He(i.titleFont),a=i.titleSpacing,e.fillStyle=i.titleColor,e.font=o.string,r=0;r0!==t))?(t.beginPath(),t.fillStyle=n.multiKeyBackground,oe(t,{x:e,y:g,w:l,h:r,radius:a}),t.fill(),t.stroke(),t.fillStyle=o.backgroundColor,t.beginPath(),oe(t,{x:i,y:g+1,w:l-2,h:r-2,radius:a}),t.fill()):(t.fillStyle=n.multiKeyBackground,t.fillRect(e,g,l,r),t.strokeRect(e,g,l,r),t.fillStyle=o.backgroundColor,t.fillRect(i,g+1,l-2,r-2))}t.fillStyle=this.labelTextColors[i]}drawBody(t,e,i){const{body:s}=this,{bodySpacing:n,bodyAlign:o,displayColors:a,boxHeight:r,boxWidth:l,boxPadding:h}=i,c=He(i.bodyFont);let d=c.lineHeight,u=0;const f=Ei(i.rtl,this.x,this.width),g=function(i){e.fillText(i,f.x(t.x+u),t.y+d/2),t.y+=d+n},p=f.textAlign(o);let m,x,b,_,y,v,w;for(e.textAlign=o,e.textBaseline="middle",e.font=c.string,t.x=No(this,p,i),e.fillStyle=i.bodyColor,Q(this.beforeBody,g),u=a&&"right"!==p?"center"===o?l/2+h:l+2+h:0,_=0,v=s.length;_0&&e.stroke()}_updateAnimationTarget(t){const e=this.chart,i=this.$animations,s=i&&i.x,n=i&&i.y;if(s||n){const i=Ro[t.position].call(this,this._active,this._eventPosition);if(!i)return;const o=this._size=Fo(this,t),a=Object.assign({},i,this._size),r=Vo(e,t,a),l=Wo(t,a,r,e);s._to===l.x&&n._to===l.y||(this.xAlign=r.xAlign,this.yAlign=r.yAlign,this.width=o.width,this.height=o.height,this.caretX=i.x,this.caretY=i.y,this._resolveAnimations().update(this,l))}}draw(t){const e=this.options.setContext(this.getContext());let i=this.opacity;if(!i)return;this._updateAnimationTarget(e);const s={width:this.width,height:this.height},n={x:this.x,y:this.y};i=Math.abs(i)<.001?0:i;const o=Ne(e.padding),a=this.title.length||this.beforeBody.length||this.body.length||this.afterBody.length||this.footer.length;e.enabled&&a&&(t.save(),t.globalAlpha=i,this.drawBackground(n,t,s,e),Ii(t,e.textDirection),n.y+=o.top,this.drawTitle(n,t,e),this.drawBody(n,t,e),this.drawFooter(n,t,e),zi(t,e.textDirection),t.restore())}getActiveElements(){return this._active||[]}setActiveElements(t,e){const i=this._active,s=t.map((({datasetIndex:t,index:e})=>{const i=this.chart.getDatasetMeta(t);if(!i)throw new Error("Cannot find a dataset at index "+t);return{datasetIndex:t,element:i.data[e],index:e}})),n=!tt(i,s),o=this._positionChanged(s,e);(n||o)&&(this._active=s,this._eventPosition=e,this._ignoreReplayEvents=!0,this.update(!0))}handleEvent(t,e,i=!0){if(e&&this._ignoreReplayEvents)return!1;this._ignoreReplayEvents=!1;const s=this.options,n=this._active||[],o=this._getActiveElements(t,n,e,i),a=this._positionChanged(o,t),r=e||!tt(o,n)||a;return r&&(this._active=o,(s.enabled||s.external)&&(this._eventPosition={x:t.x,y:t.y},this.update(!0,e))),r}_getActiveElements(t,e,i,s){const n=this.options;if("mouseout"===t.type)return[];if(!s)return e;const o=this.chart.getElementsAtEventForMode(t,n.mode,n,i);return n.reverse&&o.reverse(),o}_positionChanged(t,e){const{caretX:i,caretY:s,options:n}=this,o=Ro[n.position].call(this,t,e);return!1!==o&&(i!==o.x||s!==o.y)}}$o.positioners=Ro;var Yo={id:"tooltip",_element:$o,positioners:Ro,afterInit(t,e,i){i&&(t.tooltip=new $o({chart:t,options:i}))},beforeUpdate(t,e,i){t.tooltip&&t.tooltip.initialize(i)},reset(t,e,i){t.tooltip&&t.tooltip.initialize(i)},afterDraw(t){const e=t.tooltip,i={tooltip:e};!1!==t.notifyPlugins("beforeTooltipDraw",i)&&(e&&e.draw(t.ctx),t.notifyPlugins("afterTooltipDraw",i))},afterEvent(t,e){if(t.tooltip){const i=e.replay;t.tooltip.handleEvent(e.event,i,e.inChartArea)&&(e.changed=!0)}},defaults:{enabled:!0,external:null,position:"average",backgroundColor:"rgba(0,0,0,0.8)",titleColor:"#fff",titleFont:{weight:"bold"},titleSpacing:2,titleMarginBottom:6,titleAlign:"left",bodyColor:"#fff",bodySpacing:2,bodyFont:{},bodyAlign:"left",footerColor:"#fff",footerSpacing:2,footerMarginTop:6,footerFont:{weight:"bold"},footerAlign:"left",padding:6,caretPadding:2,caretSize:5,cornerRadius:6,boxHeight:(t,e)=>e.bodyFont.size,boxWidth:(t,e)=>e.bodyFont.size,multiKeyBackground:"#fff",displayColors:!0,boxPadding:0,borderColor:"rgba(0,0,0,0)",borderWidth:0,animation:{duration:400,easing:"easeOutQuart"},animations:{numbers:{type:"number",properties:["x","y","width","height","caretX","caretY"]},opacity:{easing:"linear",duration:200}},callbacks:{beforeTitle:H,title(t){if(t.length>0){const e=t[0],i=e.chart.data.labels,s=i?i.length:0;if(this&&this.options&&"dataset"===this.options.mode)return e.dataset.label||"";if(e.label)return e.label;if(s>0&&e.dataIndex"filter"!==t&&"itemSort"!==t&&"external"!==t,_indexable:!1,callbacks:{_scriptable:!1,_indexable:!1},animation:{_fallback:!1},animations:{_fallback:"animation"}},additionalOptionScopes:["interaction"]},Uo=Object.freeze({__proto__:null,Decimation:ro,Filler:So,Legend:Co,SubTitle:Lo,Title:Ao,Tooltip:Yo});function Xo(t,e,i,s){const n=t.indexOf(e);if(-1===n)return((t,e,i,s)=>("string"==typeof e?(i=t.push(e)-1,s.unshift({index:i,label:e})):isNaN(e)&&(i=null),i))(t,e,i,s);return n!==t.lastIndexOf(e)?i:n}class qo extends Bs{constructor(t){super(t),this._startValue=void 0,this._valueRange=0,this._addedLabels=[]}init(t){const e=this._addedLabels;if(e.length){const t=this.getLabels();for(const{index:i,label:s}of e)t[i]===s&&t.splice(i,1);this._addedLabels=[]}super.init(t)}parse(t,e){if($(t))return null;const i=this.getLabels();return((t,e)=>null===t?null:jt(Math.round(t),0,e))(e=isFinite(e)&&i[e]===t?e:Xo(i,t,K(e,t),this._addedLabels),i.length-1)}determineDataLimits(){const{minDefined:t,maxDefined:e}=this.getUserBounds();let{min:i,max:s}=this.getMinMax(!0);"ticks"===this.options.bounds&&(t||(i=0),e||(s=this.getLabels().length-1)),this.min=i,this.max=s}buildTicks(){const t=this.min,e=this.max,i=this.options.offset,s=[];let n=this.getLabels();n=0===t&&e===n.length-1?n:n.slice(t,e+1),this._valueRange=Math.max(n.length-(i?0:1),1),this._startValue=this.min-(i?.5:0);for(let i=t;i<=e;i++)s.push({value:i});return s}getLabelForValue(t){const e=this.getLabels();return t>=0&&te.length-1?null:this.getPixelForValue(e[t].value)}getValueForPixel(t){return Math.round(this._startValue+this.getDecimalForPixel(t)*this._valueRange)}getBasePixel(){return this.bottom}}function Ko(t,e,{horizontal:i,minRotation:s}){const n=It(s),o=(i?Math.sin(n):Math.cos(n))||.001,a=.75*e*(""+t).length;return Math.min(e/o,a)}qo.id="category",qo.defaults={ticks:{callback:qo.prototype.getLabelForValue}};class Go extends Bs{constructor(t){super(t),this.start=void 0,this.end=void 0,this._startValue=void 0,this._endValue=void 0,this._valueRange=0}parse(t,e){return $(t)||("number"==typeof t||t instanceof Number)&&!isFinite(+t)?null:+t}handleTickRangeOptions(){const{beginAtZero:t}=this.options,{minDefined:e,maxDefined:i}=this.getUserBounds();let{min:s,max:n}=this;const o=t=>s=e?s:t,a=t=>n=i?n:t;if(t){const t=Ct(s),e=Ct(n);t<0&&e<0?a(0):t>0&&e>0&&o(0)}if(s===n){let e=1;(n>=Number.MAX_SAFE_INTEGER||s<=Number.MIN_SAFE_INTEGER)&&(e=Math.abs(.05*n)),a(n+e),t||o(s-e)}this.min=s,this.max=n}getTickLimit(){const t=this.options.ticks;let e,{maxTicksLimit:i,stepSize:s}=t;return s?(e=Math.ceil(this.max/s)-Math.floor(this.min/s)+1,e>1e3&&(console.warn(`scales.${this.id}.ticks.stepSize: ${s} would result generating up to ${e} ticks. Limiting to 1000.`),e=1e3)):(e=this.computeTickLimit(),i=i||11),i&&(e=Math.min(i,e)),e}computeTickLimit(){return Number.POSITIVE_INFINITY}buildTicks(){const t=this.options,e=t.ticks;let i=this.getTickLimit();i=Math.max(2,i);const s=function(t,e){const i=[],{bounds:s,step:n,min:o,max:a,precision:r,count:l,maxTicks:h,maxDigits:c,includeBounds:d}=t,u=n||1,f=h-1,{min:g,max:p}=e,m=!$(o),x=!$(a),b=!$(l),_=(p-g)/(c+1);let y,v,w,M,k=Ot((p-g)/f/u)*u;if(k<1e-14&&!m&&!x)return[{value:g},{value:p}];M=Math.ceil(p/k)-Math.floor(g/k),M>f&&(k=Ot(M*k/f/u)*u),$(r)||(y=Math.pow(10,r),k=Math.ceil(k*y)/y),"ticks"===s?(v=Math.floor(g/k)*k,w=Math.ceil(p/k)*k):(v=g,w=p),m&&x&&n&&Rt((a-o)/n,k/1e3)?(M=Math.round(Math.min((a-o)/k,h)),k=(a-o)/M,v=o,w=a):b?(v=m?o:v,w=x?a:w,M=l-1,k=(w-v)/M):(M=(w-v)/k,M=Lt(M,Math.round(M),k/1e3)?Math.round(M):Math.ceil(M));const S=Math.max(Ft(k),Ft(v));y=Math.pow(10,$(r)?S:r),v=Math.round(v*y)/y,w=Math.round(w*y)/y;let P=0;for(m&&(d&&v!==o?(i.push({value:o}),v0?i:null;this._zero=!0}determineDataLimits(){const{min:t,max:e}=this.getMinMax(!0);this.min=X(t)?Math.max(0,t):null,this.max=X(e)?Math.max(0,e):null,this.options.beginAtZero&&(this._zero=!0),this.handleTickRangeOptions()}handleTickRangeOptions(){const{minDefined:t,maxDefined:e}=this.getUserBounds();let i=this.min,s=this.max;const n=e=>i=t?i:e,o=t=>s=e?s:t,a=(t,e)=>Math.pow(10,Math.floor(Dt(t))+e);i===s&&(i<=0?(n(1),o(10)):(n(a(i,-1)),o(a(s,1)))),i<=0&&n(a(s,-1)),s<=0&&o(a(i,1)),this._zero&&this.min!==this._suggestedMin&&i===a(this.min,0)&&n(a(i,-1)),this.min=i,this.max=s}buildTicks(){const t=this.options,e=function(t,e){const i=Math.floor(Dt(e.max)),s=Math.ceil(e.max/Math.pow(10,i)),n=[];let o=q(t.min,Math.pow(10,Math.floor(Dt(e.min)))),a=Math.floor(Dt(o)),r=Math.floor(o/Math.pow(10,a)),l=a<0?Math.pow(10,Math.abs(a)):1;do{n.push({value:o,major:Jo(o)}),++r,10===r&&(r=1,++a,l=a>=0?1:l),o=Math.round(r*Math.pow(10,a)*l)/l}while(an?{start:e-i,end:e}:{start:e,end:e+i}}function ia(t){const e={l:t.left+t._padding.left,r:t.right-t._padding.right,t:t.top+t._padding.top,b:t.bottom-t._padding.bottom},i=Object.assign({},e),s=[],n=[],o=t._pointLabels.length,a=t.options.pointLabels,r=a.centerPointLabels?_t/o:0;for(let d=0;de.r&&(r=(s.end-e.r)/o,t.r=Math.max(t.r,e.r+r)),n.starte.b&&(l=(n.end-e.b)/a,t.b=Math.max(t.b,e.b+l))}function na(t){return 0===t||180===t?"center":t<180?"left":"right"}function oa(t,e,i){return"right"===i?t-=e:"center"===i&&(t-=e/2),t}function aa(t,e,i){return 90===i||270===i?t-=e/2:(i>270||i<90)&&(t-=e),t}function ra(t,e,i,s){const{ctx:n}=t;if(i)n.arc(t.xCenter,t.yCenter,e,0,yt);else{let i=t.getPointPosition(0,e);n.moveTo(i.x,i.y);for(let o=1;o{const i=J(this.options.pointLabels.callback,[t,e],this);return i||0===i?i:""})).filter(((t,e)=>this.chart.getDataVisibility(e)))}fit(){const t=this.options;t.display&&t.pointLabels.display?ia(this):this.setCenterPoint(0,0,0,0)}setCenterPoint(t,e,i,s){this.xCenter+=Math.floor((t-e)/2),this.yCenter+=Math.floor((i-s)/2),this.drawingArea-=Math.min(this.drawingArea/2,Math.max(t,e,i,s))}getIndexAngle(t){return Nt(t*(yt/(this._pointLabels.length||1))+It(this.options.startAngle||0))}getDistanceFromCenterForValue(t){if($(t))return NaN;const e=this.drawingArea/(this.max-this.min);return this.options.reverse?(this.max-t)*e:(t-this.min)*e}getValueForDistanceFromCenter(t){if($(t))return NaN;const e=t/(this.drawingArea/(this.max-this.min));return this.options.reverse?this.max-e:this.min+e}getPointLabelContext(t){const e=this._pointLabels||[];if(t>=0&&t=0;n--){const e=s.setContext(t.getPointLabelContext(n)),o=He(e.font),{x:a,y:r,textAlign:l,left:h,top:c,right:d,bottom:u}=t._pointLabelItems[n],{backdropColor:f}=e;if(!$(f)){const t=Ne(e.backdropPadding);i.fillStyle=f,i.fillRect(h-t.left,c-t.top,d-h+t.width,u-c+t.height)}se(i,t._pointLabels[n],a,r+o.lineHeight/2,o,{color:e.color,textAlign:l,textBaseline:"middle"})}}(this,n),s.display&&this.ticks.forEach(((t,e)=>{if(0!==e){a=this.getDistanceFromCenterForValue(t.value);!function(t,e,i,s){const n=t.ctx,o=e.circular,{color:a,lineWidth:r}=e;!o&&!s||!a||!r||i<0||(n.save(),n.strokeStyle=a,n.lineWidth=r,n.setLineDash(e.borderDash),n.lineDashOffset=e.borderDashOffset,n.beginPath(),ra(t,i,o,s),n.closePath(),n.stroke(),n.restore())}(this,s.setContext(this.getContext(e-1)),a,n)}})),i.display){for(t.save(),o=n-1;o>=0;o--){const s=i.setContext(this.getPointLabelContext(o)),{color:n,lineWidth:l}=s;l&&n&&(t.lineWidth=l,t.strokeStyle=n,t.setLineDash(s.borderDash),t.lineDashOffset=s.borderDashOffset,a=this.getDistanceFromCenterForValue(e.ticks.reverse?this.min:this.max),r=this.getPointPosition(o,a),t.beginPath(),t.moveTo(this.xCenter,this.yCenter),t.lineTo(r.x,r.y),t.stroke())}t.restore()}}drawBorder(){}drawLabels(){const t=this.ctx,e=this.options,i=e.ticks;if(!i.display)return;const s=this.getIndexAngle(0);let n,o;t.save(),t.translate(this.xCenter,this.yCenter),t.rotate(s),t.textAlign="center",t.textBaseline="middle",this.ticks.forEach(((s,a)=>{if(0===a&&!e.reverse)return;const r=i.setContext(this.getContext(a)),l=He(r.font);if(n=this.getDistanceFromCenterForValue(this.ticks[a].value),r.showLabelBackdrop){t.font=l.string,o=t.measureText(s.label).width,t.fillStyle=r.backdropColor;const e=Ne(r.backdropPadding);t.fillRect(-o/2-e.left,-n-l.size/2-e.top,o+e.width,l.size+e.height)}se(t,s.label,0,-n,l,{color:r.color})})),t.restore()}drawTitle(){}}la.id="radialLinear",la.defaults={display:!0,animate:!0,position:"chartArea",angleLines:{display:!0,lineWidth:1,borderDash:[],borderDashOffset:0},grid:{circular:!1},startAngle:0,ticks:{showLabelBackdrop:!0,callback:Os.formatters.numeric},pointLabels:{backdropColor:void 0,backdropPadding:2,display:!0,font:{size:10},callback:t=>t,padding:5,centerPointLabels:!1}},la.defaultRoutes={"angleLines.color":"borderColor","pointLabels.color":"color","ticks.color":"color"},la.descriptors={angleLines:{_fallback:"grid"}};const ha={millisecond:{common:!0,size:1,steps:1e3},second:{common:!0,size:1e3,steps:60},minute:{common:!0,size:6e4,steps:60},hour:{common:!0,size:36e5,steps:24},day:{common:!0,size:864e5,steps:30},week:{common:!1,size:6048e5,steps:4},month:{common:!0,size:2628e6,steps:12},quarter:{common:!1,size:7884e6,steps:4},year:{common:!0,size:3154e7}},ca=Object.keys(ha);function da(t,e){return t-e}function ua(t,e){if($(e))return null;const i=t._adapter,{parser:s,round:n,isoWeekday:o}=t._parseOpts;let a=e;return"function"==typeof s&&(a=s(a)),X(a)||(a="string"==typeof s?i.parse(a,s):i.parse(a)),null===a?null:(n&&(a="week"!==n||!Tt(o)&&!0!==o?i.startOf(a,n):i.startOf(a,"isoWeek",o)),+a)}function fa(t,e,i,s){const n=ca.length;for(let o=ca.indexOf(t);o=e?i[s]:i[n]]=!0}}else t[e]=!0}function pa(t,e,i){const s=[],n={},o=e.length;let a,r;for(a=0;a=0&&(e[l].major=!0);return e}(t,s,n,i):s}class ma extends Bs{constructor(t){super(t),this._cache={data:[],labels:[],all:[]},this._unit="day",this._majorUnit=void 0,this._offsets={},this._normalized=!1,this._parseOpts=void 0}init(t,e){const i=t.time||(t.time={}),s=this._adapter=new mn._date(t.adapters.date);ot(i.displayFormats,s.formats()),this._parseOpts={parser:i.parser,round:i.round,isoWeekday:i.isoWeekday},super.init(t),this._normalized=e.normalized}parse(t,e){return void 0===t?null:ua(this,t)}beforeLayout(){super.beforeLayout(),this._cache={data:[],labels:[],all:[]}}determineDataLimits(){const t=this.options,e=this._adapter,i=t.time.unit||"day";let{min:s,max:n,minDefined:o,maxDefined:a}=this.getUserBounds();function r(t){o||isNaN(t.min)||(s=Math.min(s,t.min)),a||isNaN(t.max)||(n=Math.max(n,t.max))}o&&a||(r(this._getLabelBounds()),"ticks"===t.bounds&&"labels"===t.ticks.source||r(this.getMinMax(!1))),s=X(s)&&!isNaN(s)?s:+e.startOf(Date.now(),i),n=X(n)&&!isNaN(n)?n:+e.endOf(Date.now(),i)+1,this.min=Math.min(s,n-1),this.max=Math.max(s+1,n)}_getLabelBounds(){const t=this.getLabelTimestamps();let e=Number.POSITIVE_INFINITY,i=Number.NEGATIVE_INFINITY;return t.length&&(e=t[0],i=t[t.length-1]),{min:e,max:i}}buildTicks(){const t=this.options,e=t.time,i=t.ticks,s="labels"===i.source?this.getLabelTimestamps():this._generate();"ticks"===t.bounds&&s.length&&(this.min=this._userMin||s[0],this.max=this._userMax||s[s.length-1]);const n=this.min,o=he(s,n,this.max);return this._unit=e.unit||(i.autoSkip?fa(e.minUnit,this.min,this.max,this._getLabelCapacity(n)):function(t,e,i,s,n){for(let o=ca.length-1;o>=ca.indexOf(i);o--){const i=ca[o];if(ha[i].common&&t._adapter.diff(n,s,i)>=e-1)return i}return ca[i?ca.indexOf(i):0]}(this,o.length,e.minUnit,this.min,this.max)),this._majorUnit=i.major.enabled&&"year"!==this._unit?function(t){for(let e=ca.indexOf(t)+1,i=ca.length;e1e5*a)throw new Error(e+" and "+i+" are too far apart with stepSize of "+a+" "+o);const f="data"===s.ticks.source&&this.getDataTimestamps();for(c=u,d=0;ct-e)).map((t=>+t))}getLabelForValue(t){const e=this._adapter,i=this.options.time;return i.tooltipFormat?e.format(t,i.tooltipFormat):e.format(t,i.displayFormats.datetime)}_tickFormatFunction(t,e,i,s){const n=this.options,o=n.time.displayFormats,a=this._unit,r=this._majorUnit,l=a&&o[a],h=r&&o[r],c=i[e],d=r&&h&&c&&c.major,u=this._adapter.format(t,s||(d?h:l)),f=n.ticks.callback;return f?J(f,[u,e,i],this):u}generateTickLabels(t){let e,i,s;for(e=0,i=t.length;e0?a:1}getDataTimestamps(){let t,e,i=this._cache.data||[];if(i.length)return i;const s=this.getMatchingVisibleMetas();if(this._normalized&&s.length)return this._cache.data=s[0].controller.getAllParsedValues(this);for(t=0,e=s.length;t=t[r].pos&&e<=t[l].pos&&({lo:r,hi:l}=re(t,"pos",e)),({pos:s,time:o}=t[r]),({pos:n,time:a}=t[l])):(e>=t[r].time&&e<=t[l].time&&({lo:r,hi:l}=re(t,"time",e)),({time:s,pos:o}=t[r]),({time:n,pos:a}=t[l]));const h=n-s;return h?o+(a-o)*(e-s)/h:o}ma.id="time",ma.defaults={bounds:"data",adapters:{},time:{parser:!1,unit:!1,round:!1,isoWeekday:!1,minUnit:"millisecond",displayFormats:{}},ticks:{source:"auto",major:{enabled:!1}}};class ba extends ma{constructor(t){super(t),this._table=[],this._minPos=void 0,this._tableRange=void 0}initOffsets(){const t=this._getTimestampsForTable(),e=this._table=this.buildLookupTable(t);this._minPos=xa(e,this.min),this._tableRange=xa(e,this.max)-this._minPos,super.initOffsets(t)}buildLookupTable(t){const{min:e,max:i}=this,s=[],n=[];let o,a,r,l,h;for(o=0,a=t.length;o=e&&l<=i&&s.push(l);if(s.length<2)return[{time:e,pos:0},{time:i,pos:1}];for(o=0,a=s.length;o { + var ctx = document.getElementById(id); + if (window['myChart'] instanceof Chart) { + window['myChart'].destroy(); + window['myChart'] = new Chart(ctx, config); + } + else { + window['myChart'] = new Chart(ctx, config); + } + +} \ No newline at end of file diff --git a/EgwCoreLib.Razor/Chart.razor b/EgwCoreLib.Razor/Chart.razor index 0f5780c..7de34e8 100644 --- a/EgwCoreLib.Razor/Chart.razor +++ b/EgwCoreLib.Razor/Chart.razor @@ -7,7 +7,8 @@ public enum ChartType { Pie, - Bar + Bar, + doughnut } [Parameter] diff --git a/EgwCoreLib.Razor/Data/DoughnutStyling.cs b/EgwCoreLib.Razor/Data/DoughnutStyling.cs new file mode 100644 index 0000000..08935f9 --- /dev/null +++ b/EgwCoreLib.Razor/Data/DoughnutStyling.cs @@ -0,0 +1,20 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using System.Text; +using System.Threading.Tasks; + +namespace EgwCoreLib.Razor.Data +{ + public class DoughnutStyling + { + public string color { get; set; } + public string border { get; set; } + + public DoughnutStyling(string color, string border) + { + this.color = color; + this.border = border; + } + } +} diff --git a/EgwCoreLib.Razor/Doughnut.razor b/EgwCoreLib.Razor/Doughnut.razor new file mode 100644 index 0000000..a5014ed --- /dev/null +++ b/EgwCoreLib.Razor/Doughnut.razor @@ -0,0 +1,54 @@ +@using EgwCoreLib.Razor.Data; +@using Microsoft.JSInterop; + +

Doughnut

+ +@code { + [Inject] + private IJSRuntime JSRuntime { get; set; } = null!; + + + public enum ChartType + { + Pie, + Bar, + Doughnut + } + + //[Parameter] + public string Id { get; set; } = "myChart"; + + [Parameter] + public ChartType Type { get; set; } + + [Parameter] + public double[] Data { get; set; } = null!; + [Parameter] + public List BackgroundColor { get; set; } = null!; + + [Parameter] + public string[] Labels { get; set; } = null!; + + protected override async Task OnAfterRenderAsync(bool firstRender) + { + var config = new + { + Type = Type.ToString().ToLower(), + Options = new + { + Responsive = true, + }, + Data = new + { + Datasets = new[] + { + new { Data = Data, BackgroundColor = BackgroundColor.Select(x=>x.color), borderColor = BackgroundColor.Select(x=>x.border), borderWidth= 0, offset= 1, borderRadius = 0 + } +}, + Labels = Labels + } + }; + + await JSRuntime.InvokeVoidAsync("setup", Id, config); + } +}