Imports System.Runtime.InteropServices
Imports System.Text
Imports System.Math
Imports System.IO
Imports System.Globalization
Imports TestEIn.EgtInterface
Imports TestEIn.GenInterface
Imports TestEIn.Controller


Public Class Form1

   Private m_sIniFile As String = String.Empty
   Private WithEvents m_Controller As New Controller
   Private m_bShowGrid As Boolean
   Private m_bShowGridFrame As Boolean
   Private m_bCPlaneTypePos As Boolean

'-------------------------------- Form ------------------------------------------------------------
   Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
      ' installo aggiornamento interfaccia
      AddHandler System.Windows.Forms.Application.Idle, AddressOf Application_Idle
      'Title
      EmitTitle()
      'Impostazione path Ini file
      m_sIniFile = Application.StartupPath & "\TestEIn.ini"
      'Inizializzazione generale di EgtInterface
      EgtInit(0, Application.StartupPath & "\TestEngine.log")
      'imposto chiave di protezione
      Dim sKey As String = String.Empty
      GetPrivateProfileString("General", "Key", "", sKey, m_sIniFile)
      EgtSetKey(sKey)
      'imposto dir font Nfe e font default
      Dim sNfeDir As String = String.Empty
      GetPrivateProfileString("GeomDB", "NfeFontDir", "", sNfeDir, m_sIniFile)
      Dim sDefFont As String = String.Empty
      GetPrivateProfileString("GeomDB", "DefaultFont", "", sDefFont, m_sIniFile)
      EgtSetFont(sNfeDir, sDefFont)
      ' imposto colore di default
      Dim DefColor As New Color3d(0, 0, 0)
      GetPrivateProfileColor("GeomDB", "DefaultColor", DefColor, m_sIniFile)
      Scene1.SetDefaultMaterial(DefColor)
      ' imposto colori sfondo
      Dim BackTopColor As New Color3d(192, 192, 192)
      GetPrivateProfileColor("Scene", "BackTop", BackTopColor, m_sIniFile)
      Dim BackBotColor As New Color3d(192, 192, 192)
      GetPrivateProfileColor("Scene", "BackBottom", BackBotColor, m_sIniFile)
      Scene1.SetViewBackground(BackTopColor, BackBotColor)
      ' imposto colore di evidenziazione
      Dim MarkColor As New Color3d(255, 255, 0)
      GetPrivateProfileColor("Scene", "Mark", MarkColor, m_sIniFile)
      Scene1.SetMarkMaterial(MarkColor)
      ' imposto colore per superfici selezionate
      Dim SelSurfColor As New Color3d(255, 255, 192)
      GetPrivateProfileColor("Scene", "SelSurf", SelSurfColor, m_sIniFile)
      Scene1.SetSelSurfMaterial(SelSurfColor)
      ' imposto tipo e colore del rettangolo di zoom
      Dim bOutline As Boolean = True
      Dim ZwColor As New Color3d(0, 0, 0)
      GetPrivateProfileZoomWin("Scene", "ZoomWin", bOutline, ZwColor, m_sIniFile)
      Scene1.SetZoomWinAttribs(bOutline, ZwColor)
      ' imposto colore della linea di distanza
      Dim DstLnColor As New Color3d(255, 0, 0)
      GetPrivateProfileColor("Scene", "DistLine", DstLnColor, m_sIniFile)
      Scene1.SetDistLineMaterial(DstLnColor)
      ' imposto parametri OpenGL
      Dim nDriver As Integer = GetPrivateProfileInt("OpenGL", "Driver", 3, m_sIniFile)
      Dim b2Buff As Boolean = (GetPrivateProfileInt("OpenGL", "DoubleBuffer", 1, m_sIniFile) <> 0)
      Dim nColorBits As Integer = GetPrivateProfileInt("OpenGL", "ColorBits", 32, m_sIniFile)
      Dim nDepthBits As Integer = GetPrivateProfileInt("OpenGL", "DepthBits", 32, m_sIniFile)
      Scene1.SetViewAttributes(nDriver, b2Buff, nColorBits, nDepthBits)
      ' inizializzo scena
      Scene1.Init()
      ' imposto i dati della griglia
      m_bShowGrid = (GetPrivateProfileInt("Grid", "ShowGrid", 1, m_sIniFile) <> 0)
      m_bShowGridFrame = (GetPrivateProfileInt("Grid", "ShowFrame", 1, m_sIniFile) <> 0)
      Dim dSnapStep As Double = GetPrivateProfileDouble("Grid", "SnapStep", 10, m_sIniFile)
      Dim nMinLineSStep As Integer = GetPrivateProfileInt("Grid", "MinLineSStep", 1, m_sIniFile)
      Dim nMajLineSStep As Integer = GetPrivateProfileInt("Grid", "MajLineSStep", 10, m_sIniFile)
      Dim nExtSStep As Integer = GetPrivateProfileInt("Grid", "ExtSStep", 50, m_sIniFile)
      Dim MinLnColor As New Color3d(160, 160, 160)
      GetPrivateProfileColor("Grid", "MinLnColor", MinLnColor, m_sIniFile)
      Dim MajLnColor As New Color3d(160, 160, 160)
      GetPrivateProfileColor("Grid", "MajLnColor", MajLnColor, m_sIniFile)
      EgtSetGridShow(m_bShowGrid, m_bShowGridFrame)
      EgtSetGridFrame(Frame3d.GLOB)
      EgtSetGridGeo(dSnapStep, nMinLineSStep, nMajLineSStep, nExtSStep)
      EgtSetGridColor(MinLnColor, MajLnColor)
      ' imposto tipo coordinate
      m_bCPlaneTypePos = True
      Scene1.SetGridCursorPos(m_bCPlaneTypePos)
      ' modo di visualizzazione
      Dim nShowMode As Integer = GetPrivateProfileInt("Scene", "ShowMode", SM.SHADING, m_sIniFile)
      If nShowMode = SM.WIREFRAME Then
         rbtWireFrame.Checked = True
      ElseIf nShowMode = SM.HIDDENLINE Then
         rbtHiddenLine.Checked = True
      Else
         rbtShading.Checked = True
      End If
      ' visualizzazione direzione curve
      Dim nShowCurveDir As Integer = GetPrivateProfileInt("Scene", "CurveDir", 0, m_sIniFile)
      chkCurveDir.Checked = (nShowCurveDir <> 0)
      ' ObjTree non selezionato
      m_nObjTreeOldId = GDB_ID.NULL
      ' aggiungo voce per about box nel menù di sistema
      Dim hSysMenu As IntPtr = GetSystemMenu(Handle, False)
      If hSysMenu <> IntPtr.Zero Then
         AppendMenu(hSysMenu, MF_SEPARATOR, 0, "")
         AppendMenu(hSysMenu, MF_STRING, IDM_ABOUTBOX, "About TestEIn...")
      End If
      'Posizione e dimensioni del Form
      If ModifierKeys <> Keys.Shift Then
         Dim nFlag As Integer
         Dim nLeft As Integer
         Dim nTop As Integer
         Dim nWidth As Integer
         Dim nHeight As Integer
         GetPrivateProfileWinPos("General", "WinPlace", nFlag, nLeft, nTop, nWidth, nHeight, m_sIniFile)
         Me.StartPosition = System.Windows.Forms.FormStartPosition.Manual
         Me.Location = New Point(nLeft, nTop)
         Me.Size = New Size(nWidth, nHeight)
         WindowState = IIf(nFlag = 1, FormWindowState.Maximized, FormWindowState.Normal)
      End If
      ' Impostazioni controller
      m_Controller.SetScene(Scene1)
      ' Recupero eventuali parametri da linea di comando
      Dim bOpen As Boolean = False
      For Each s As String In My.Application.CommandLineArgs
         If Not String.IsNullOrWhiteSpace(s) Then
            Dim nFileType As Integer = EgtGetFileType(s)
            Select Case nFileType
            Case FT.NGE, FT.NFE
               Scene1.OpenProject(s, False)
               bOpen = True
            Case FT.DXF, FT.STL, FT.CNC
               Scene1.ImportProject(s, False)
               bOpen = True
            Case FT.TSC, FT.LUA
               Scene1.Exec(s, False)
               bOpen = True
            End Select
            Exit For
         End If
      Next
      If Not bOpen Then
         Scene1.NewProject(True)
      End If
   End Sub

   Private Sub Form1_FormClosing(sender As System.Object, e As FormClosingEventArgs) Handles MyBase.FormClosing
      ' gestisco eventuale file corrente modificato
      If Not m_Controller.ManageModified() Then
         e.Cancel = True
         Return
      End If
      ' Salvo modo di visualizzazione
      WritePrivateProfileString("Scene", "ShowMode", EgtGetShowMode(), m_sIniFile)
      ' Salvo stato visualizzazione direzione curve
      WritePrivateProfileString("Scene", "CurveDir", IIf(EgtGetShowCurveDirection(), 1, 0), m_sIniFile)
      ' Salvo posizione Form
      Dim nFlag As Integer = IIf(Me.WindowState = FormWindowState.Maximized, 1, 0)
      WritePrivateProfileWinPos("General", "WinPlace", nFlag, Me.Left, Me.Top, Me.Width, Me.Height, m_sIniFile)
      ' Terminazione generale di EgtInterface
      EgtExit()
   End Sub

   Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
      MyBase.WndProc(m)
      If m.Msg = WM_SYSCOMMAND Then
         If m.WParam.ToInt32 = IDM_ABOUTBOX Then
            AboutBox1.ShowDialog()
         End If
      End If
   End Sub

 '-------------------------------- Events management ----------------------------------------------
   Private Sub OnCursorPos(ByVal sender As Object, ByVal sCursorPos As String) Handles Scene1.OnCursorPos
      tsStatusCursorPos.Text = sCursorPos
   End Sub

   Private Sub OnMouseSelected(ByVal sender As Object, ByVal nId As Integer, ByVal bLast As Boolean) Handles Scene1.OnMouseSelected
      If EgtIsSelectedObj(nId) Then
         EgtDeselectObj(nId)
      Else
         EgtSelectObj(nId)
      End If
      If bLast Then
         EgtDraw()
      End If
   End Sub

   Private Sub OnMousePartSelected(ByVal sender As Object, ByVal nId As Integer) Handles Scene1.OnMousePartSelected
      ' recupero il pezzo
      Dim nPartId = EgtGetParent(EgtGetParent(nId))
      If EgtGetParent(nPartId) <> GDB_ID.ROOT Then
         Return
      End If
      ' eseguo la selezione ed aggiorno
      EgtSelectPartObjs(nPartId)
      EgtDraw()
   End Sub

   Private Sub OnMouseLayerSelected(ByVal sender As Object, ByVal nId As Integer) Handles Scene1.OnMouseLayerSelected
      ' recupero il layer
      Dim nLayerId = EgtGetParent(nId)
      If EgtGetParent(EgtGetParent(nLayerId)) <> GDB_ID.ROOT Then
         Return
      End If
      ' eseguo la selezione ed aggiorno
      EgtSelectLayerObjs(nLayerId)
      EgtDraw()
   End Sub

   Private Sub OnMousePointForSelection(ByVal sender As Object, ByVal PtP As Point3d) Handles Scene1.OnMousePointForSelection
      m_Controller.SetLastPoint3d(PtP)
   End Sub

   Private Sub OnMouseSelectedPoint(ByVal sender As Object, ByVal PtP As Point3d) Handles Scene1.OnMouseSelectedPoint
      m_Controller.SetLastPoint3d(PtP)
      If (ModifierKeys And Keys.Control) <> Keys.Control Then
         m_Controller.ProcessStatus()
      Else
         ' eseguo ultimo drag
         m_Controller.SetLastPoint3d(PtP)
         m_Controller.ExecuteDrag()
         ' passo in modalità input da box
         Scene1.DisableDrag()
         SetInputBoxPoint3d(PtP)
      End If
   End Sub

   Private Sub OnMouseMoveSelPoint(ByVal sender As Object, ByVal PtP As Point3d) Handles Scene1.OnMouseMoveSelPoint
      m_Controller.SetLastPoint3d(PtP)
      m_Controller.ExecuteDrag()
   End Sub

   Private Sub OnMouseAnalyzed(ByVal sender As Object, ByVal nId As Integer) Handles Scene1.OnMouseAnalyzed
      SelectIdInObjTree(nId)
   End Sub

   Private Sub OnShowDistance(ByVal sender As Object, ByVal sDistance As String) Handles Scene1.OnShowDistance
      tsStatusOutput.Text = sDistance
   End Sub

   Private Sub OnNewProject(ByVal sender As Object) Handles Scene1.OnNewProject
      m_Controller.ResetCurrFile()
      m_Controller.ExecuteCommand(CMD.RESETCURRPARTLAYER)
      m_Controller.ResetModified()
   End Sub

   Private Sub OnOpeningProject(ByVal sender As Object) Handles Scene1.OnOpeningProject
      ClearObjTree()
   End Sub

   Private Sub OnOpenProject(ByVal sender As Object, ByVal sFile As String) Handles Scene1.OnOpenProject
      m_Controller.SetCurrFile(sFile)
      m_Controller.ExecuteCommand(CMD.RESETCURRPARTLAYER)
      m_Controller.ResetModified()
      WritePrivateProfileString("General", "LastNgeDir", Path.GetDirectoryName(sFile), m_sIniFile)
   End Sub

   Private Sub OnSavingProject(ByVal sender As Object, ByVal sFile As String) Handles Scene1.OnSavingProject
      m_Controller.SetCurrFile(sFile)
      EmitTitle()
      WritePrivateProfileString("General", "LastNgeDir", Path.GetDirectoryName(sFile), m_sIniFile)
   End Sub

   Private Sub OnSavedProject(ByVal sender As Object) Handles Scene1.OnSavedProject
      m_Controller.ResetModified()
   End Sub

   Private Sub OnImportingProject(ByVal sender As Object) Handles Scene1.OnImportingProject
      ClearObjTree()
   End Sub

   Private Sub OnImportedProject(ByVal sender As Object, ByVal sFile As String) Handles Scene1.OnImportedProject
      m_Controller.SetCurrFile(sFile)
      m_Controller.ExecuteCommand(CMD.RESETCURRPARTLAYER)
      m_Controller.SetModified()
      WritePrivateProfileString("General", "LastImpDir", Path.GetDirectoryName(sFile), m_sIniFile)
   End Sub

   Private Sub OnExportingProject(ByVal sender As Object, ByVal sFile As String) Handles Scene1.OnExportingProject
      WritePrivateProfileString("General", "LastExpDir", Path.GetDirectoryName(sFile), m_sIniFile)
   End Sub

   Private Sub OnExportedProject(ByVal sender As Object) Handles Scene1.OnExportedProject
   End Sub

   Private Sub OnExecutingScript(ByVal sender As Object, ByVal sFile As String) Handles Scene1.OnExecutingScript
      WritePrivateProfileString("General", "LastLuaDir", Path.GetDirectoryName(sFile), m_sIniFile)
      ClearObjTree()
   End Sub

   Private Sub OnExecutedScript(ByVal sender As Object) Handles Scene1.OnExecutedScript
      m_Controller.SetModified()
   End Sub

   Private Sub OnSetInputBox(ByVal sTitle As String, ByVal sLabel As String, ByVal nType As IBT) Handles m_Controller.SetInputBox
      SetInputBox(sTitle, sLabel, nType)
   End Sub

   Private Sub OnAddInputCheck(ByVal sLabel As String) Handles m_Controller.AddInputCheck
      AddInputCheck(sLabel)
      InputCheck.Checked = False
   End Sub

   Private Sub OnAddButtonShow() Handles m_Controller.AddButtonShow
      btnShow.Show()
   End Sub

   Private Sub OnSetInputBoxString(ByVal sText As String) Handles m_Controller.SetInputBoxString
      SetInputBoxString(sText)
   End Sub

   Private Sub OnSetInputBoxDouble(ByVal dVal As Double) Handles m_Controller.SetInputBoxDouble
      SetInputBoxDouble(dVal)
   End Sub

   Private Sub OnSetInputBoxPoint3d(ByVal ptP As Point3d) Handles m_Controller.SetInputBoxPoint3d
      SetInputBoxPoint3d(ptP)
   End Sub

   Private Sub OnUpdateUI(ByVal sender As Object, ByVal bReloadUI As Boolean) Handles m_Controller.UpdateUI
      ' pulisco input e relativi messaggi
      ResetInputBox()
      tsStatusOutput.Text = ""
      ' aggiorno dati correnti
      EmitTitle()
      EmitCurrPartLayer()
      If bReloadUI Then
         LoadObjTree()
      Else
         UpdateObjTree()
      End If
   End Sub

 '-------------------------------- Buttons --------------------------------------------------------
   Private Sub btnNew_Click(sender As System.Object, e As System.EventArgs) Handles btnNew.Click
      ' gestisco eventuale file corrente modificato
      If Not m_Controller.ManageModified() Then
         Return
      End If
      ' eseguo
      Scene1.NewProject(True)
   End Sub

   Private Sub btnOpen_Click(sender As System.Object, e As System.EventArgs) Handles btnOpen.Click
      ' gestisco eventuale file corrente modificato
      If Not m_Controller.ManageModified() Then
         Return
      End If
      ' eseguo
      Dim sDir As String = String.Empty
      GetPrivateProfileString("General", "LastNgeDir", "", sDir, m_sIniFile)
      Scene1.OpenProject(sDir)
   End Sub

   Private Sub btnSave_Click(sender As System.Object, e As System.EventArgs) Handles btnSave.Click
      Scene1.SaveProject(m_Controller.GetCurrFile())
   End Sub

   Private Sub btnSaveAs_Click(sender As System.Object, e As System.EventArgs) Handles btnSaveAs.Click
      Scene1.SaveAsProject(m_Controller.GetCurrFile())
   End Sub

   Private Sub btnImport_Click(sender As System.Object, e As System.EventArgs) Handles btnImport.Click
      ' gestisco eventuale file corrente modificato
      If Not m_Controller.ManageModified() Then
         Return
      End If
      ' eseguo
      Dim sDir As String = String.Empty
      GetPrivateProfileString("General", "LastImpDir", "", sDir, m_sIniFile)
      Scene1.ImportProject(sDir)
   End Sub

   Private Sub btnExport_Click(sender As System.Object, e As System.EventArgs) Handles btnExport.Click
      Scene1.ExportProject(Path.ChangeExtension(m_Controller.GetCurrFile(), "dxf"))
   End Sub

   Private Sub btnExec_Click(sender As System.Object, e As System.EventArgs) Handles btnExec.Click
      Dim sDir As String = String.Empty
      GetPrivateProfileString("General", "LastLuaDir", "", sDir, m_sIniFile)
      Scene1.Exec(sDir)
   End Sub

   Private Sub rbtWireFrame_CheckedChanged(sender As System.Object, e As System.EventArgs) Handles rbtWireFrame.CheckedChanged
      Scene1.WireFrame()
   End Sub

   Private Sub rbtHiddenLine_CheckedChanged(sender As System.Object, e As System.EventArgs) Handles rbtHiddenLine.CheckedChanged
      Scene1.HiddenLine()
   End Sub

   Private Sub rbtShading_CheckedChanged(sender As System.Object, e As System.EventArgs) Handles rbtShading.CheckedChanged
      Scene1.Shading()
   End Sub

   Private Sub chkCurveDir_CheckedChanged(sender As System.Object, e As System.EventArgs) Handles chkCurveDir.CheckedChanged
      EgtSetShowCurveDirection(chkCurveDir.Checked)
   End Sub

   Private Sub chkAnalyze_CheckedChanged(sender As System.Object, e As System.EventArgs) Handles chkAnalyze.CheckedChanged
      If chkAnalyze.Checked Then
         chkGetDist.Checked = False
         Scene1.SetStatusAnalyze()
      Else
         Scene1.ResetStatusAnalyze()
         SelectIdInObjTree(GDB_ID.NULL)
      End If
   End Sub

   Private Sub chkGetDist_CheckedChanged(sender As System.Object, e As System.EventArgs) Handles chkGetDist.CheckedChanged
      If chkGetDist.Checked Then
         chkAnalyze.Checked = False
         Scene1.SetStatusGetDistance()
         tsStatusOutput.Text = "  "
      Else
         Scene1.ResetStatusGetDistance()
         tsStatusOutput.Text = "  "
      End If
   End Sub

   Private Sub btnZoomAll_Click(sender As System.Object, e As System.EventArgs) Handles btnZoomAll.Click
      Scene1.ZoomAll()
   End Sub

   Private Sub btnZoomIn_Click(sender As System.Object, e As System.EventArgs) Handles btnZoomIn.Click
      Scene1.ZoomIn()
   End Sub

   Private Sub btnZoomOut_Click(sender As System.Object, e As System.EventArgs) Handles btnZoomOut.Click
      Scene1.ZoomOut()
   End Sub

   Private Sub btnTop_Click(sender As System.Object, e As System.EventArgs) Handles btnTop.Click
      Scene1.TopView()
   End Sub

   Private Sub btnFront_Click(sender As System.Object, e As System.EventArgs) Handles btnFront.Click
      Scene1.FrontView()
   End Sub

   Private Sub btnLeft_Click(sender As System.Object, e As System.EventArgs) Handles btnLeft.Click
      Scene1.LeftView()
   End Sub

   Private Sub btnBack_Click(sender As System.Object, e As System.EventArgs) Handles btnBack.Click
      Scene1.BackView()
   End Sub

   Private Sub btnRight_Click(sender As System.Object, e As System.EventArgs) Handles btnRight.Click
      Scene1.RightView()
   End Sub

   Private Sub btnBottom_Click(sender As System.Object, e As System.EventArgs) Handles btnBottom.Click
      Scene1.BottomView()
   End Sub

   Private Sub btnIsoSW_Click(sender As System.Object, e As System.EventArgs) Handles btnIsoSW.Click
      Scene1.IsoViewSW()
   End Sub

   Private Sub btnIsoSE_Click(sender As System.Object, e As System.EventArgs) Handles btnIsoSE.Click
      Scene1.IsoViewSE()
   End Sub

   Private Sub btnIsoNE_Click(sender As System.Object, e As System.EventArgs) Handles btnIsoNE.Click
      Scene1.IsoViewNE()
   End Sub

   Private Sub btnIsoNW_Click(sender As System.Object, e As System.EventArgs) Handles btnIsoNW.Click
      Scene1.IsoViewNW()
   End Sub

   Private Sub btnCplaneTop_Click(sender As System.Object, e As System.EventArgs) Handles btnCplaneTop.Click
      m_Controller.SetLastIntegers(GRID_TYPE.TOP, 0)
      m_Controller.ExecuteCommand(CMD.GRID)
   End Sub

   Private Sub btnCplaneFront_Click(sender As System.Object, e As System.EventArgs) Handles btnCplaneFront.Click
      m_Controller.SetLastIntegers(GRID_TYPE.FRONT, 0)
      m_Controller.ExecuteCommand(CMD.GRID)
   End Sub

   Private Sub btnCplaneRight_Click(sender As System.Object, e As System.EventArgs) Handles btnCplaneRight.Click
      m_Controller.SetLastIntegers(GRID_TYPE.RIGHT, 0)
      m_Controller.ExecuteCommand(CMD.GRID)
   End Sub

   Private Sub btnCplaneBack_Click(sender As System.Object, e As System.EventArgs) Handles btnCplaneBack.Click
      m_Controller.SetLastIntegers(GRID_TYPE.BACK, 0)
      m_Controller.ExecuteCommand(CMD.GRID)
   End Sub

   Private Sub btnCplaneLeft_Click(sender As System.Object, e As System.EventArgs) Handles btnCplaneLeft.Click
      m_Controller.SetLastIntegers(GRID_TYPE.LEFT, 0)
      m_Controller.ExecuteCommand(CMD.GRID)
   End Sub

   Private Sub btnCplaneBottom_Click(sender As System.Object, e As System.EventArgs) Handles btnCplaneBottom.Click
      m_Controller.SetLastIntegers(GRID_TYPE.BOTTOM, 0)
      m_Controller.ExecuteCommand(CMD.GRID)
   End Sub

   Private Sub btnCplaneElevation_Click(sender As System.Object, e As System.EventArgs) Handles btnCplaneElevation.Click
      m_Controller.ExecuteCommand(CMD.GRID_ELEVATION)
   End Sub

   Private Sub btnCplaneOrigin_Click(sender As System.Object, e As System.EventArgs) Handles btnCplaneOrigin.Click
      m_Controller.ExecuteCommand(CMD.GRID_ORIGIN)
   End Sub

   Private Sub btnCplaneRotate_Click(sender As System.Object, e As System.EventArgs) Handles btnCplaneRotate.Click
      m_Controller.ExecuteCommand(CMD.GRID_ROTATE)
   End Sub

   Private Sub btnCplane3Points_Click(sender As System.Object, e As System.EventArgs) Handles btnCplane3P.Click
      m_Controller.ExecuteCommand(CMD.GRID_3P)
   End Sub

   ' --------------------- Update UI -------------------------------
   Private Sub Application_Idle(ByVal sender As Object, ByVal e As EventArgs)
      ' Gestione abilitazione bottoni
      Dim bLayerOk As Boolean = (m_Controller.GetCurrLayer() <> GDB_ID.NULL)
      Dim bSelOk As Boolean = (EgtGetFirstSelectedObj() <> GDB_ID.NULL)
      ' Grid
      btnCplaneElevation.Enabled = m_bShowGrid
      btnCplaneOrigin.Enabled = m_bShowGrid
      btnCplaneRotate.Enabled = m_bShowGrid
      btnCplane3P.Enabled = m_bShowGrid
      ' Draw
      btnPoint.Enabled = bLayerOk
      btnLine2P.Enabled = bLayerOk
      btnCircleCR.Enabled = bLayerOk
      btnArcCSE.Enabled = bLayerOk
      btnArc3P.Enabled = bLayerOk
      ' Construct
      btnPlane.Enabled = bLayerOk And bSelOk
      btnExtrude.Enabled = bLayerOk And bSelOk
      btnRevolve.Enabled = bLayerOk And bSelOk
      btnRuled.Enabled = bLayerOk And bSelOk
      ' Edit
      btnDelete.Enabled = bSelOk
      btnChangeColor.Enabled = bSelOk
      btnInvertCurve.Enabled = bSelOk
      btnExtendCurve.Enabled = bSelOk
      btnBreakCurve.Enabled = bSelOk
      btnJoinCurve.Enabled = bLayerOk And bSelOk
      btnExplodeCurve.Enabled = bSelOk
      ' Transform
      btnMove.Enabled = bSelOk
      btnRotate.Enabled = bSelOk
      btnMirror.Enabled = bSelOk
      btnScale.Enabled = bSelOk
   End Sub


   ' --------------------- Commands --------------------------------
   Private Sub btnPoint_Click(sender As System.Object, e As System.EventArgs) Handles btnPoint.Click
      m_Controller.ExecuteCommand(CMD.POINT)
   End Sub

   Private Sub btnLine2P_Click(sender As System.Object, e As System.EventArgs) Handles btnLine2P.Click
      m_Controller.ExecuteCommand(CMD.LINE2P)
   End Sub

   Private Sub btnCircleCR_Click(sender As System.Object, e As System.EventArgs) Handles btnCircleCR.Click
      m_Controller.ExecuteCommand(CMD.CIRCLECR)
   End Sub

   Private Sub btnArcCSE_Click(sender As System.Object, e As System.EventArgs) Handles btnArcCSE.Click
      m_Controller.ExecuteCommand(CMD.ARCCSE)
   End Sub

   Private Sub btnArc3P_Click(sender As System.Object, e As System.EventArgs) Handles btnArc3P.Click
      m_Controller.ExecuteCommand(CMD.ARC3P)
   End Sub

   Private Sub btnPlane_Click(sender As System.Object, e As System.EventArgs) Handles btnPlane.Click
      m_Controller.ExecuteCommand(CMD.PLANE)
   End Sub

   Private Sub btnExtrude_Click(sender As System.Object, e As System.EventArgs) Handles btnExtrude.Click
      m_Controller.ExecuteCommand(CMD.EXTRUDE)
   End Sub

   Private Sub btnRevolve_Click(sender As System.Object, e As System.EventArgs) Handles btnRevolve.Click
      If (ModifierKeys And Keys.Shift) <> Keys.Shift Then
         m_Controller.ExecuteCommand(CMD.REVOLVE)
      Else
         m_Controller.ExecuteCommand(CMD.REVOLVEPLUS)
      End If
   End Sub

   Private Sub btnRuled_Click(sender As System.Object, e As System.EventArgs) Handles btnRuled.Click
      m_Controller.ExecuteCommand(CMD.RULED)
   End Sub

   Private Sub btnDelete_Click(sender As System.Object, e As System.EventArgs) Handles btnDelete.Click
      m_Controller.SetLastIntegers(GDB_ID.SEL, 0)
      m_Controller.ExecuteCommand(CMD.DELETE)
   End Sub

   Private Sub btnChangeColor_Click(sender As System.Object, e As System.EventArgs) Handles btnChangeColor.Click
      If (ModifierKeys And Keys.Shift) <> Keys.Shift Then
         m_Controller.ExecuteCommand(CMD.CHANGECOLOR)
      Else
         m_Controller.ExecuteCommand(CMD.RESETCOLOR)
      End If
   End Sub

   Private Sub btnInvertCurve_Click(sender As System.Object, e As System.EventArgs) Handles btnInvertCurve.Click
      m_Controller.ExecuteCommand(CMD.INVERTCRVSURF)
   End Sub

   Private Sub btnExtendCurve_Click(sender As System.Object, e As System.EventArgs) Handles btnExtendCurve.Click
      m_Controller.ExecuteCommand(CMD.EXTENDCURVE)
   End Sub

   Private Sub btnBreakCurve_Click(sender As System.Object, e As System.EventArgs) Handles btnBreakCurve.Click
      m_Controller.ExecuteCommand(CMD.BREAKCURVE)
   End Sub

   Private Sub btnJoinCurve_Click(sender As System.Object, e As System.EventArgs) Handles btnJoinCurve.Click
      m_Controller.ExecuteCommand(CMD.JOINCURVE)
   End Sub

   Private Sub btnSeparateCurve_Click(sender As System.Object, e As System.EventArgs) Handles btnExplodeCurve.Click
      m_Controller.ExecuteCommand(CMD.EXPLODECURVE)
   End Sub

   Private Sub btnMove_Click(sender As System.Object, e As System.EventArgs) Handles btnMove.Click
      m_Controller.ExecuteCommand(CMD.MOVE)
   End Sub

   Private Sub btnRotate_Click(sender As System.Object, e As System.EventArgs) Handles btnRotate.Click
      If (ModifierKeys And Keys.Shift) <> Keys.Shift Then
         m_Controller.ExecuteCommand(CMD.ROTATE)
      Else
         m_Controller.ExecuteCommand(CMD.ROTATE3D)
      End If
   End Sub

   Private Sub btnMirror_Click(sender As System.Object, e As System.EventArgs) Handles btnMirror.Click
      m_Controller.ExecuteCommand(CMD.MIRROR)
   End Sub

   Private Sub btnScale_Click(sender As System.Object, e As System.EventArgs) Handles btnScale.Click
      If (ModifierKeys And Keys.Shift) <> Keys.Shift Then
         m_Controller.ExecuteCommand(CMD.SCALE)
      Else
         m_Controller.ExecuteCommand(CMD.SCALE3D)
      End If
   End Sub


   ' ----------------- Test Commands -------------------
   Private Sub XbtnRotP90_Click(sender As System.Object, e As System.EventArgs) Handles XbtnRotP90.Click
      XRotate(90)
      ' aggiorno visualizzazione
      Scene1.ZoomAll()
      UpdateObjInObjTree(m_nObjTreeOldId)
   End Sub

   Private Sub XbtnRotM90_Click(sender As System.Object, e As System.EventArgs) Handles XbtnRotM90.Click
      XRotate(-90)
      ' aggiorno visualizzazione
      Scene1.ZoomAll()
      UpdateObjInObjTree(m_nObjTreeOldId)
   End Sub

   Private Sub XRotate(ByVal dAngRotDeg As Double)
      ' indice del primo gruppo sotto la radice
      Dim nId As Integer = EgtGetFirstInGroup(GDB_ID.ROOT)
      ' recupero il box del gruppo in globale
      Dim PtMinPre As New Point3d
      Dim PtMaxPre As New Point3d
      EgtGetBBoxGlob(nId, BBF.IGNORE_TEXT + BBF.EXACT, PtMinPre, PtMaxPre)
      ' ruoto attorno al punto minimo
      EgtRotateGlob(nId, PtMinPre, EgtGetGridVersZ(), dAngRotDeg)
      ' calcolo nuovo box in globale
      Dim PtMinPost As New Point3d
      Dim PtMaxPost As New Point3d
      EgtGetBBoxGlob(nId, BBF.IGNORE_TEXT + BBF.EXACT, PtMinPost, PtMaxPost)
      ' eseguo traslazione per riavere lo stesso punto minimo
      Dim VtMove As Vector3d = PtMinPre - PtMinPost
      EgtMoveGlob(nId, VtMove)
   End Sub

   Private Sub XbtnMirror_Click(sender As System.Object, e As System.EventArgs) Handles XbtnMirror.Click
      ' indice del primo gruppo sotto la radice
      Dim nId As Integer = EgtGetFirstInGroup(GDB_ID.ROOT)
      ' recupero il box del gruppo in globale
      Dim PtMin As New Point3d
      Dim PtMax As New Point3d
      EgtGetBBoxGlob(nId, BBF.IGNORE_TEXT + BBF.EXACT, PtMin, PtMax)
      Dim PtCen As Point3d = Point3d.Media(PtMin, PtMax)
      ' mirror rispetto a Y centrato nel box
      EgtMirrorGlob(nId, PtCen, Vector3d.X_AX)
      ' sistemo gli eventuali testi
      XUnMirrorTexts(nId)
      ' aggiorno visualizzazione
      Scene1.ZoomAll()
      UpdateObjInObjTree(m_nObjTreeOldId)
   End Sub

   Private Sub XUnMirrorTexts(ByVal nGroupId As Integer)
      Dim nId As Integer = EgtGetFirstInGroup(nGroupId)
      While nId <> GDB_ID.NULL
         'recupero il tipo di oggetto
         Dim nType As Integer = EgtGetType(nId)
         'se gruppo
         If nType = GDB_TY.GROUP Then
            XUnMirrorTexts(nId)
         ' se testo
         ElseIf nType = GDB_TY.EXT_TEXT Then
            EgtMirrorText(nId, True)
         End If
         ' passo al successivo
         nId = EgtGetNext(nId)
      End While
   End Sub


  '-------------------------------- KeyDown --------------------------------------------------------
   Private Sub Form1_KeyDown(ByVal sender As System.Object, ByVal e As KeyEventArgs) Handles MyBase.KeyDown
      ' Con ESC esco dall'azione corrente
      If e.KeyData = Keys.Escape Then
         ' reset Azione corrente
         m_Controller.ResetStatus()
         ' reset Analisi e Distanza
         chkAnalyze.Checked = False
         chkGetDist.Checked = False
         ' pulisco output
         tsStatusOutput.Text = ""
         ResetInputBox()
      End If
   End Sub

   Private Sub Scene1_KeyDown(ByVal sender As System.Object, ByVal e As KeyEventArgs) Handles Scene1.KeyDown
      ' Con DEL eseguo cancellazione delle entità selezionate
      If e.KeyData = Keys.Delete Then
         m_Controller.SetLastIntegers(GDB_ID.SEL, 0)
         m_Controller.ExecuteCommand(CMD.DELETE)
      ' con SPAZIO ripeto l'ultimo comando
      ElseIf e.KeyData = Keys.Space Then
         m_Controller.RepeatLastCommand()
      End If
   End Sub


   ' --------------------- Input Box -------------------------------
   Private m_nInpType As IBT = IBT.TY_NULL

   Public Sub SetInputBox(ByRef sTitle As String, ByRef sLabel As String, ByVal nType As IBT)
      InputBox.Show()
      InputBox.Text = sTitle
      InputLabel.Show()
      InputLabel.Text = sLabel
      InputText.Show()
      InputText.Text = ""
      m_nInpType = nType
      InputText.Focus()
   End Sub

   Public Sub AddInputCheck(ByRef sLabel As String)
      InputCheck.Text = sLabel
      InputCheck.Show()
   End Sub

   Public Sub ResetInputBox()
      InputBox.Hide()
      InputCheck.Hide()
      btnShow.Hide()
      m_nInpType = IBT.TY_NULL
   End Sub

   Private Function SetInputBoxString(ByVal sVal As String) As Boolean
      InputText.Text = sVal
      Return True
   End Function

   Private Function SetInputBoxDouble(ByVal dVal As Double) As Boolean
      Dim sText As New StringBuilder
      sText.Append(dVal.ToString("F3", CultureInfo.InvariantCulture))
      InputText.Text = sText.ToString()
      Return True
   End Function

   Private Function SetInputBox3Double(ByVal d3Val() As Double) As Boolean
      ' verifico ci siano almeno 3 elementi nell'array
      If d3Val.Length < 3 Then
         Return False
      End If
      ' visualizzo
      Dim sText As New StringBuilder
      sText.Append(d3Val(0).ToString("F3", CultureInfo.InvariantCulture))
      sText.Append(",")
      sText.Append(d3Val(1).ToString("F3", CultureInfo.InvariantCulture))
      sText.Append(",")
      sText.Append(d3Val(2).ToString("F3", CultureInfo.InvariantCulture))
      InputText.Text = sText.ToString()
      Return True
   End Function

   Private Function SetInputBoxPoint3d(ByVal PtVal As Point3d) As Boolean
      ' converto da coordinate globali a griglia
      Dim frGrid As New Frame3d
      EgtGetGridFrame(frGrid)
      PtVal.ToLoc(frGrid)
      ' visualizzo
      Dim sText As New StringBuilder
      sText.Append(PtVal.x.ToString("F3", CultureInfo.InvariantCulture))
      sText.Append(",")
      sText.Append(PtVal.y.ToString("F3", CultureInfo.InvariantCulture))
      sText.Append(",")
      sText.Append(PtVal.z.ToString("F3", CultureInfo.InvariantCulture))
      InputText.Text = sText.ToString()
      Return True
   End Function

   Private Function GetInputBoxDouble(ByRef dVal As Double) As Boolean
      Return Double.TryParse(InputText.Text, NumberStyles.Float, CultureInfo.InvariantCulture, dVal)
   End Function

   Private Function GetInputBox3Double(ByRef d3Val() As Double) As Boolean
      ' verifico ci siano almeno 3 elementi nell'array
      If d3Val.Length < 3 Then
         Return False
      End If
      ' leggo le ccordinate
      Dim sItems() As String = InputText.Text.Split(",".ToCharArray)
      Dim bOk As Boolean = False
      d3Val(0) = 0
      d3Val(1) = 0
      d3Val(2) = 0
      If sItems.Count() >= 1 Then
         bOk = Double.TryParse(sItems(0), NumberStyles.Float, CultureInfo.InvariantCulture, d3Val(0))
         If sItems.Count() >= 2 Then
            bOk = Double.TryParse(sItems(1), NumberStyles.Float, CultureInfo.InvariantCulture, d3Val(1)) And bOk
            If sItems.Count() >= 3 Then
               bOk = Double.TryParse(sItems(2), NumberStyles.Float, CultureInfo.InvariantCulture, d3Val(2)) And bOk
            End If
         End If
      End If
      Return bOk
   End Function

   Private Function GetInputBoxPoint3d(ByRef PtVal As Point3d) As Boolean
      ' leggo le coordinate
      Dim sItems() As String = InputText.Text.Split(",".ToCharArray)
      Dim bOk As Boolean = False
      PtVal = Point3d.ORIG
      If sItems.Count() >= 1 Then
         bOk = Double.TryParse(sItems(0), NumberStyles.Float, CultureInfo.InvariantCulture, PtVal.x)
         If sItems.Count() >= 2 Then
            bOk = Double.TryParse(sItems(1), NumberStyles.Float, CultureInfo.InvariantCulture, PtVal.y) And bOk
            If sItems.Count() >= 3 Then
               bOk = Double.TryParse(sItems(2), NumberStyles.Float, CultureInfo.InvariantCulture, PtVal.z) And bOk
            End If
         End If
      End If
      ' se richiesto, converto in globale
      Dim frGrid As New Frame3d
      EgtGetGridFrame(frGrid)
      PtVal.ToGlob(frGrid)
      Return bOk
   End Function

   Private Function InputBoxTextToLast() As Boolean
      Select Case m_nInpType
      Case IBT.TY_STRING
         m_Controller.SetLastString(InputText.Text)
         Return True
      Case IBT.TY_DOUBLE
         Dim dVal As Double
         If GetInputBoxDouble(dVal) Then
            m_Controller.SetLastDouble(dVal)
            Return True
         End If
      Case IBT.TY_3DOUBLE
         Dim d3Val(3) As Double
         If GetInputBox3Double(d3Val) Then
            m_Controller.SetLast3Double(d3Val)
            Return True
         End If
      Case IBT.TY_POINT3D
         Dim ptP As Point3d
         If GetInputBoxPoint3d(ptP) Then
            m_Controller.SetLastPoint3d(ptP)
            Return True
         End If
      End Select
      Return False
   End Function

   Private Sub InputText_KeyDown(ByVal sender As System.Object, ByVal e As KeyEventArgs) Handles InputText.KeyDown
      ' Con SHIFT aggiorno la grafica con i dati correnti
      If (e.KeyData And Keys.Shift) = Keys.Shift Then
         InputBoxTextToLast()
         Scene1.DisableDrag()
         EgtResetGeoLine()
         m_Controller.ExecuteDrag()
      ' Con RETURN devo eseguire lo stato corrente
      ElseIf e.KeyData = Keys.Return Then
         InputBoxTextToLast()
         m_Controller.ProcessStatus()
      End If
   End Sub

   Private Sub InputCheck_KeyDown(ByVal sender As Object, ByVal e As EventArgs) Handles InputCheck.CheckedChanged
      m_Controller.SetLastBoolean(InputCheck.Checked)
   End Sub

   Private Sub btnShow_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnShow.Click
      ' aggiorno la visualizzazione grafica
      InputBoxTextToLast()
      Scene1.DisableDrag()
      EgtResetGeoLine()
      m_Controller.ExecuteDrag()
   End Sub

   Private Sub btnDone_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDone.Click
      ' eseguo lo stato corrente
      InputBoxTextToLast()
      m_Controller.ProcessStatus()
   End Sub

  '-------------------------------- Command Box ----------------------------------------------------
   Private Sub tboxCmd_KeyDown(sender As System.Object, e As System.Windows.Forms.KeyEventArgs) Handles tboxCmd.KeyDown
      If (e.KeyCode = Keys.Enter) Then
         Dim nLine As Integer = tboxCmd.GetLineFromCharIndex(tboxCmd.GetFirstCharIndexOfCurrentLine)
         Dim sCmd As String = tboxCmd.Lines(nLine).ToString
         If Not String.IsNullOrEmpty(sCmd) Then
            ' ripristino stato oggetto marcato
            Dim nIdOld As Integer = RevertOldIdInObjTree()
            ' eseguo comando
            If EgtTscExecLine(sCmd) Then
               Scene1.Invalidate()
               tsStatusOnR.Text = "   "
            Else
               tsStatusOnR.Text = "Error executing command"
            End If
            ' ricarico albero degli oggetti
            LoadObjTree()
            SelectIdInObjTree(nIdOld)
         End If
      End If
   End Sub


 '-------------------------------- Current Piece/Layer --------------------------------------------
   Private Sub btnNewPart_Click(sender As Object, e As EventArgs) Handles btnNewPart.Click
      m_Controller.ExecuteCommand(CMD.NEWPART)
   End Sub

   Private Sub btnNewLayer_Click(sender As Object, e As EventArgs) Handles btnNewLayer.Click
      m_Controller.ExecuteCommand(CMD.NEWLAYER)
   End Sub

   Private Sub btnColor_Click(sender As Object, e As EventArgs) Handles btnColor.Click
      m_Controller.ExecuteCommand(CMD.LAYERCOLOR)
   End Sub

   Private Sub EmitCurrPartLayer()
      Dim sText As String = "   "
      Dim colObj As Color3d
      EgtGetColor(GDB_ID.ROOT, colObj)
      Dim nCurrPart As Integer = m_Controller.GetCurrPart()
      If nCurrPart <> GDB_ID.NULL Then
         sText = "Part " + nCurrPart.ToString()
         EgtGetCalcColor(nCurrPart, colObj)
         Dim nCurrLayer As Integer = m_Controller.GetCurrLayer()
         If nCurrLayer <> GDB_ID.NULL And EgtExistsObj(nCurrLayer) Then
            sText += " --> Layer " + nCurrLayer.ToString()
            EgtGetCalcColor(nCurrLayer, colObj)
         End If
      End If
      txtPartLay.Text = sText
      colObj.A = 100
      txtColor.BackColor = colObj.ToColor()
   End Sub


 '-------------------------------- Tree View ------------------------------------------------------
   Private m_nObjTreeOldId As Integer = GDB_ID.NULL
   Private m_nObjTreeMenuId As Integer = GDB_ID.NULL

   Private Sub ObjTreeTickEvent(source As Object, e As EventArgs) Handles ObjTreeTimer.Tick
      If m_nObjTreeOldId <> GDB_ID.NULL Then
         EgtResetMark(m_nObjTreeOldId)
         EgtDraw()
      End If
      ObjTreeTimer.Stop()
   End Sub

   Public Sub LoadObjTree()
      Dim nOldId As Integer = ClearObjTree()
      TreeView1.BeginUpdate()
      AddGroupInObjTree(GDB_ID.ROOT, 0, TreeView1.Nodes)
      TreeView1.EndUpdate()
      If nOldId <> GDB_ID.NULL Then
         SelectIdInObjTree(nOldId)
         UpdateObjDataInObjTree(m_nObjTreeOldId)
      End If
   End Sub

   Private Function ClearObjTree() As Integer
      Dim nOldId As Integer = RevertOldIdInObjTree()
      TreeView1.Nodes.Clear()
      Return nOldId
   End Function

   Private Sub AddGroupInObjTree(ByVal nGroupId As Integer, ByVal nLev As Integer, ByRef PrevNodColl As TreeNodeCollection)

      Dim CurrNodColl As TreeNodeCollection

      If nGroupId = GDB_ID.ROOT Then
         CurrNodColl = PrevNodColl
      Else
         Dim sName As String = String.Empty
         Dim sText As String = String.Empty
         If EgtGetName(nGroupId, sName) Then
            If nLev = 1 Then
               sText = sName + " (Part " + nGroupId.ToString + ")"
            ElseIf nLev = 2 Then
               sText = sName + " (Layer " + nGroupId.ToString + ")"
            Else
               sText = sName + " (Group " + nGroupId.ToString + ")"
            End If
         Else
            If nLev = 1 Then
               sText = "Part " + nGroupId.ToString
            ElseIf nLev = 2 Then
               sText = "Layer " + nGroupId.ToString
            Else
               sText = "Group " + nGroupId.ToString
            End If
         End If
         Dim nImage As Integer = TypeToImageInObjTree(GDB_TY.GROUP, nLev)
         Dim CurrNod As TreeNode = PrevNodColl.Add(nGroupId.ToString(), sText, nImage, nImage)
         CurrNodColl = CurrNod.Nodes
         Dim nStat As GDB_ST = GDB_ST.ON_
         EgtGetStatus(nGroupId, nStat)
         CurrNod.Checked = (nStat <> GDB_ST.OFF)
      End If

      Dim nObjs As Integer = EgtGetGroupObjs(nGroupId)
      If (nObjs > 20000) Then
         CurrNodColl.Add(GDB_ID.NULL.ToString(), "Too many entities")
         Return
      End If

      Dim nId As Integer = EgtGetFirstInGroup(nGroupId)
      While nId <> GDB_ID.NULL
         'recupero il tipo di nodo
         Dim nType As Integer = EgtGetType(nId)
         'se gruppo
         If nType = GDB_TY.GROUP Then
            AddGroupInObjTree(nId, nLev + 1, CurrNodColl)
         'se oggetto geometrico
         ElseIf nType >= GDB_TY.GEO_VECTOR Then
            Dim sTitle As String = String.Empty
            EgtGetTitle(nId, sTitle)
            Dim sName As String = String.Empty
            Dim sText As String = String.Empty
            If EgtGetName(nId, sName) Then
               sText = sName + " (" + sTitle + " " + nId.ToString + ")"
            Else
               sText = sTitle + " " + nId.ToString
            End If
            Dim nImage As Integer = TypeToImageInObjTree(nType, nLev)
            Dim CurrNod As TreeNode = CurrNodColl.Add(nId.ToString, sText, nImage, nImage)
            Dim nStat As GDB_ST = GDB_ST.ON_
            EgtGetStatus(nId, nStat)
            CurrNod.Checked = (nStat <> GDB_ST.OFF)
         End If
         'passo al successivo
         nId = EgtGetNext(nId)
      End While
   End Sub

   Private Sub UpdateObjTree()
      ' per aggiornare l'albero senza ricostruirlo da capo
      ' se c'è una entità corrente, ne aggiorno i dati
      If m_nObjTreeOldId <> GDB_ID.NULL Then
         UpdateObjDataInObjTree(m_nObjTreeOldId)
      End If
   End Sub

   Private Function TypeToImageInObjTree(ByVal nType As Integer, ByVal nLev As Integer) As Integer
      Select Case nType
      Case GDB_TY.GROUP
         If nLev = 1 Then
            Return 3
         ElseIf nLev = 2 Then
            Return 4
         Else
            Return 2
         End If
      Case GDB_TY.GEO_VECTOR
         Return 5
      Case GDB_TY.GEO_POINT
         Return 6
      Case GDB_TY.GEO_FRAME
         Return 7
      Case GDB_TY.CRV_LINE
         Return 8
      Case GDB_TY.CRV_ARC
         Return 9
      Case GDB_TY.CRV_BEZ
         Return 10
      Case GDB_TY.CRV_COMPO
         Return 11
      Case GDB_TY.SRF_MESH
         Return 12
      Case GDB_TY.EXT_TEXT
         Return 13
      End Select
      Return 1
   End Function

   Private Sub ObjTree_AfterCheck(ByVal sender As Object, ByVal e As TreeViewEventArgs) Handles TreeView1.AfterCheck
      ' verifico che il check derivi da azione utente
      If e.Action = TreeViewAction.Unknown Then
         Return
      End If
      ' recupero l'Id del nuovo oggetto
      Dim nId As Integer
      If Not Int32.TryParse(e.Node.Name, nId) Then
         Return
      End If
      ' eseguo operazione
      m_Controller.SetLastIntegers(nId, 0)
      If e.Node.Checked Then
         m_Controller.ExecuteCommand(CMD.SHOW)
      Else
         m_Controller.ExecuteCommand(CMD.HIDE)
      End If
   End Sub

   Private Sub ObjTree_AfterSelect(ByVal sender As Object, ByVal e As TreeViewEventArgs) Handles TreeView1.AfterSelect
      ' verifico che il select derivi da azione utente
      If e.Action = TreeViewAction.Unknown Then
         Return
      End If
      ' recupero l'Id del nuovo oggetto selezionato
      Dim nId As Integer
      If Not Int32.TryParse(e.Node.Name, nId) Then
         Return
      End If
      UpdateObjInObjTree(nId)
   End Sub

   Private Sub ObjTree_MouseUp(ByVal sender As Object, e As MouseEventArgs) Handles TreeView1.MouseUp
      ' determino Id di eventuale item sotto il mouse
      Dim nId As Integer = GDB_ID.NULL
      Dim TNode As TreeNode = TreeView1.GetNodeAt(e.Location)
      If TNode IsNot Nothing Then
         Int32.TryParse(TNode.Name, nId)
      End If
      ' se Id coincide con il corrente
      If nId <> GDB_ID.NULL And nId = m_nObjTreeOldId Then
         ' evidenzio
         EgtSetMark(m_nObjTreeOldId)
         EgtDraw()
         ' lancio timer per successiva de-evidenziazione
         ObjTreeTimer.Stop()
         ObjTreeTimer.Start()
      End If
      ' se rilascio tasto destro
      If e.Button = Windows.Forms.MouseButtons.Right Then
         ' Id pezzo sotto il mouse
         m_nObjTreeMenuId = nId
         ' verifico stato visualizzazione per abilitare voci menù
         Dim nStat As GDB_ST = GDB_ST.ON_
         Dim bOn As Boolean = EgtGetCalcStatus(m_nObjTreeMenuId, nStat) And nStat <> GDB_ST.OFF
         For Each i As ToolStripItem In ContextMenuTreeView1.Items
            i.Enabled = bOn
         Next
         ContextMenuTreeView1.Show(TreeView1, e.Location)
      End If
   End Sub

   Private Sub ObjTree_MouseDoubleClick(ByVal sender As Object, e As MouseEventArgs) Handles TreeView1.MouseDoubleClick
      If m_nObjTreeOldId <> GDB_ID.NULL Then
         ' se non è un gruppo ne cerco il padre
         Dim nId As Integer = m_nObjTreeOldId
         While EgtGetType(nId) <> GDB_TY.GROUP
            nId = EgtGetParent(nId)
            If nId = GDB_ID.NULL Then
               Return
            End If
         End While
         ' recupero il padre
         Dim nIdParent As Integer = EgtGetParent(nId)
         If nIdParent = GDB_ID.NULL Then
            Return
         ' se Part
         ElseIf nIdParent = GDB_ID.ROOT Then
            ' cerco il primo Layer del Part
            Dim nIdLayer As Integer = EgtGetFirstGroupInGroup(nId)
            m_Controller.SetLastIntegers(nId, nIdLayer)
            m_Controller.ExecuteCommand(CMD.SETCURRPARTLAYER)
            EmitCurrPartLayer()
         ' se Layer
         ElseIf EgtGetParent(nIdParent) = GDB_ID.ROOT Then
            m_Controller.SetLastIntegers(nIdParent, nId)
            m_Controller.ExecuteCommand(CMD.SETCURRPARTLAYER)
            EmitCurrPartLayer()
         End If
      End If
   End Sub

   Private Sub UpdateObjInObjTree(ByVal nId As Integer)
      ' ripristino eventuale vecchio oggetto selezionato
      RevertOldIdInObjTree()
      ' stampa dei dati del nuovo oggetto
      UpdateObjDataInObjTree(nId)
      ' evidenzio l'oggetto
      EgtSetMark(nId)
      m_nObjTreeOldId = nId
      ' imposto il ridisegno della scena
      EgtDraw()
      ' lancio timer per successiva de-evidenziazione
      ObjTreeTimer.Stop()
      ObjTreeTimer.Start()
   End Sub

   Private Sub UpdateObjDataInObjTree(ByVal nId As Integer)
      ' recupero il tipo del nuovo oggetto
      Dim nType As Integer = EgtGetType(nId)
      ' stampa dei dati dell'oggetto
      Dim sDump As String = String.Empty
      If nType = GDB_TY.NONE Then
         tBoxInfo.Text = String.Empty
      ElseIf nType = GDB_TY.GROUP Then
         If EgtGroupDump(nId, sDump) Then
            tBoxInfo.Text = sDump
         Else
            tBoxInfo.Text = String.Empty
         End If
      Else
         If EgtGeoObjDump(nId, sDump) Then
            tBoxInfo.Text = sDump
         Else
            tBoxInfo.Text = String.Empty
         End If
      End If
   End Sub

   Private Function RevertOldIdInObjTree() As Integer
      ' salvo il vecchio Id
      Dim nOldId As Integer = m_nObjTreeOldId
      ' se non nullo...
      If EgtExistsObj(m_nObjTreeOldId) Then
         ' smarco l'oggetto
         EgtResetMark(m_nObjTreeOldId)
         ' annullo oggetto da ripristinare
         m_nObjTreeOldId = GDB_ID.NULL
      End If
      Return nOldId
   End Function

   Private Function SelectIdInObjTree(ByVal nId As Integer) As Boolean
      Dim tNode() As TreeNode = TreeView1.Nodes.Find(nId.ToString, True)
      If tNode.Length > 0 Then
         TreeView1.SelectedNode = tNode(0)
         TreeView1.SelectedNode.Expand()
         m_nObjTreeOldId = nId
         Return True
      Else
         m_nObjTreeOldId = GDB_ID.NULL
         Return False
      End If
   End Function

   Private Sub MenuObjTree_ItemClicked(sender As Object, e As ToolStripItemClickedEventArgs) Handles ContextMenuTreeView1.ItemClicked
      If e.ClickedItem.Name = "cmdSelectPartLayObj" Then
         m_Controller.SetLastIntegers(m_nObjTreeMenuId, 0)
         m_Controller.ExecuteCommand(CMD.SELECTPARTLAYEROBJ)
      ElseIf e.ClickedItem.Name = "cmdDeselectPartLayObj" Then
         m_Controller.SetLastIntegers(m_nObjTreeMenuId, 0)
         m_Controller.ExecuteCommand(CMD.DESELECTPARTLAYEROBJ)
      ElseIf e.ClickedItem.Name = "cmdSetName" Then
         m_Controller.SetLastIntegers(m_nObjTreeMenuId, 0)
         m_Controller.ExecuteCommand(CMD.SETNAME)
      ElseIf e.ClickedItem.Name = "cmdSetInfo" Then
         m_Controller.SetLastIntegers(m_nObjTreeMenuId, 0)
         m_Controller.ExecuteCommand(CMD.SETINFO)
      ElseIf e.ClickedItem.Name = "cmdRelocatePartLayObj" Then
         m_Controller.SetLastIntegers(m_nObjTreeMenuId, 0)
         m_Controller.ExecuteCommand(CMD.RELOCATEPARTLAYEROBJ)
      ElseIf e.ClickedItem.Name = "cmdCopyPartLayObj" Then
         m_Controller.SetLastIntegers(m_nObjTreeMenuId, 0)
         m_Controller.ExecuteCommand(CMD.COPYPARTLAYEROBJ)
      ElseIf e.ClickedItem.Name = "cmdDeletePartLayObj" Then
         m_Controller.SetLastIntegers(m_nObjTreeMenuId, 0)
         m_Controller.ExecuteCommand(CMD.DELETE)
      End If
   End Sub

  '-------------------------------- Program Title --------------------------------------------------
   Private Sub EmitTitle()
      ' nome file
      Dim sTitle As String = m_Controller.GetCurrFile()
      If String.IsNullOrEmpty(sTitle) Then
         sTitle = "New"
      End If
      ' indicazione di modificato 
      If m_Controller.GetModified() Then
         sTitle += "*"
      End If
      ' dati del prodotto
      sTitle += " - EgalTech TestEIn"
      ' emissione del titolo
      Me.Text = sTitle
   End Sub

  '-------------------------------- Status Bar -----------------------------------------------------
   Private Sub ToolStripStatusGrid_Click() Handles tsStatusGrid.Click
      m_bShowGrid = Not m_bShowGrid
      If m_bShowGrid Then
         tsStatusGrid.ForeColor = Color.Black
         tsStatusGrid.Text = "GRID ON "
      Else
         tsStatusGrid.ForeColor = Color.LightGray
         tsStatusGrid.Text = "GRID OFF"
      End If
      EgtSetGridShow(m_bShowGrid, m_bShowGrid And m_bShowGridFrame)
      EgtDraw()
   End Sub

   Private Sub ToolStripStatusTypePos_Click() Handles tsStatusTypePos.Click
      m_bCPlaneTypePos = Not m_bCPlaneTypePos
      If m_bCPlaneTypePos Then
         tsStatusTypePos.Text = "CPLANE"
      Else
         tsStatusTypePos.Text = "WORLD "
      End If
      Scene1.SetGridCursorPos(m_bCPlaneTypePos)
   End Sub

End Class