Imports System.Collections.ObjectModel
Imports System.IO
Imports EgtUILib
Imports System.Runtime.InteropServices

Public Class ImportPageUC

    'Riferimento alla MainWindow
    Private m_MainWindow As MainWindow = Application.Current.MainWindow

    'Dichiarazione del UserControl SceneButtons
    Friend m_SceneButtons As SceneButtonsUC

    ' Properties
    Private m_sCurrDir As String = String.Empty
    Private m_sCurrFile As String = String.Empty
    Private m_nFileType As Integer = FT.NULL
    Private m_bFirst As Boolean = True
    Private m_bMM As Boolean = True

    'Dichiarazione Scene
    Friend WithEvents ImportScene As New Scene
    Dim ImportSceneHost As New System.Windows.Forms.Integration.WindowsFormsHost

   Private Sub ImportPage_Initialized(sender As Object, e As EventArgs)

      'Creazione del UserCOntrol SceneButtons
      m_SceneButtons = New SceneButtonsUC

      'Posizionemento nella griglia del UserControl SceneButtons
      m_SceneButtons.SetValue(Grid.ColumnProperty, 1)
      UpperButtonGrid.Children.Add(m_SceneButtons)

      'Assegnazione scena all'host e posizionamento nella ImportPageGrid
      ImportSceneHost.Child = ImportScene
      ImportSceneHost.SetValue(Grid.ColumnProperty, 1)
      ImportSceneHost.SetValue(Grid.RowProperty, 2)
      'ImportSceneHost.SetValue(Grid.RowSpanProperty, 2)
      Me.ImportPageGrid.Children.Add(ImportSceneHost)

      'Imposto i messaggi letti dal file dei messaggi
      UseLayerBtn.Content = EgtMsg(MSG_IMPORTPAGEUC + 1)              'Usa layer - Use layers
      UseRegionBtn.Content = EgtMsg(MSG_IMPORTPAGEUC + 2)             'Usa regioni - Use regions
      UseClosedCurveBtn.Content = EgtMsg(MSG_IMPORTPAGEUC + 6)        'Usa curve chiuse - Use closed curves
      ResetBtn.Content = EgtMsg(MSG_IMPORTPAGEUC + 3)                 'Reset
      mmBtn.Content = EgtMsg(MSG_IMPORTPAGEUC + 4)                    'mm
      inchBtn.Content = EgtMsg(MSG_IMPORTPAGEUC + 5)                  'inch

      'Definizione del collegamento tra ItemList e ListBox1
      FileListBox.ItemsSource = m_MainWindow.m_ImportItemList

   End Sub

   Private Sub ImportPage_Loaded(sender As Object, e As RoutedEventArgs)

      If m_bFirst Then
         ' imposto colore di default
         Dim DefColor As New Color3d(0, 0, 0)
         GetPrivateProfileColor(S_GEOMDB, K_DEFAULTCOLOR, DefColor, m_MainWindow.GetIniFile())
         ImportScene.SetDefaultMaterial(DefColor)
         ' imposto colori sfondo
         Dim BackTopColor As New Color3d(192, 192, 192)
         GetPrivateProfileColor(S_SCENE, K_BACKTOP, BackTopColor, m_MainWindow.GetIniFile())
         Dim BackBotColor As New Color3d(BackTopColor)
         GetPrivateProfileColor(S_SCENE, K_BACKBOTTOM, BackBotColor, m_MainWindow.GetIniFile())
         ImportScene.SetViewBackground(BackTopColor, BackBotColor)
         ' imposto colore di evidenziazione
         Dim MarkColor As New Color3d(255, 255, 0)
         GetPrivateProfileColor(S_SCENE, K_MARK, MarkColor, m_MainWindow.GetIniFile())
         ImportScene.SetMarkMaterial(MarkColor)
         ' imposto colore per superfici selezionate
         Dim SelSurfColor As New Color3d(255, 255, 192)
         GetPrivateProfileColor(S_SCENE, K_SELSURF, SelSurfColor, m_MainWindow.GetIniFile())
         ImportScene.SetSelSurfMaterial(SelSurfColor)
         ' imposto tipo e colore del rettangolo di zoom
         Dim bOutline As Boolean = True
         Dim ZwColor As New Color3d(0, 0, 0)
         GetPrivateProfileZoomWin(S_SCENE, K_ZOOMWIN, bOutline, ZwColor, m_MainWindow.GetIniFile())
         ImportScene.SetZoomWinAttribs(bOutline, ZwColor)
         ' imposto colore della linea di distanza
         Dim DstLnColor As New Color3d(255, 0, 0)
         GetPrivateProfileColor(S_SCENE, K_DISTLINE, DstLnColor, m_MainWindow.GetIniFile())
         ImportScene.SetDistLineMaterial(DstLnColor)
         ' imposto parametri OpenGL
         Dim nDriver As Integer = GetPrivateProfileInt(S_OPENGL, K_DRIVER, 3, m_MainWindow.GetIniFile())
         Dim b2Buff As Boolean = (GetPrivateProfileInt(S_OPENGL, K_DOUBLEBUFFER, 1, m_MainWindow.GetIniFile()) <> 0)
         Dim nColorBits As Integer = GetPrivateProfileInt(S_OPENGL, K_COLORBITS, 32, m_MainWindow.GetIniFile())
         Dim nDepthBits As Integer = GetPrivateProfileInt(S_OPENGL, K_DEPTHBITS, 32, m_MainWindow.GetIniFile())
         ImportScene.SetViewAttributes(nDriver, b2Buff, nColorBits, nDepthBits)
         ' Inizializzazione delle viste
         ImportScene.Init()
         ' Imposto griglia
         LoadGridData()
         ' leggo direttorio corrente
         GetPrivateProfileString(S_FLATPARTS, K_FLPCURRDIR, "", m_sCurrDir, m_MainWindow.GetIniFile())
         ' lo carico
         LoadCurrDir()
         m_bFirst = False
      Else
         EgtSetCurrentContext(ImportScene.GetCtx())
      End If

      ' Pulisco tutto
      ClearView()
      ' inibisco selezione diretta da Scene
      ImportScene.SetStatusNull()

      ' imposto misura
      m_bMM = EgtUiUnitsAreMM()
      If m_bMM Then
         mmBtn.IsChecked = True
      Else
         inchBtn.IsChecked = True
      End If

   End Sub

   Private Sub LoadGridData()
      Dim dSnapStep As Double = GetPrivateProfileDouble(S_GRID, K_SNAPSTEP, 10, m_MainWindow.GetIniFile())
      Dim nMinLineSStep As Integer = GetPrivateProfileInt(S_GRID, K_MINLINESSTEP, 1, m_MainWindow.GetIniFile())
      Dim nMajLineSStep As Integer = GetPrivateProfileInt(S_GRID, K_MAJLINESSTEP, 10, m_MainWindow.GetIniFile())
      Dim nExtSStep As Integer = GetPrivateProfileInt(S_GRID, K_EXTSSTEP, 50, m_MainWindow.GetIniFile())
      Dim MinLnColor As New Color3d(160, 160, 160)
      GetPrivateProfileColor(S_GRID, K_MINLNCOLOR, MinLnColor, m_MainWindow.GetIniFile())
      Dim MajLnColor As New Color3d(160, 160, 160)
      GetPrivateProfileColor(S_GRID, K_MAJLNCOLOR, MajLnColor, m_MainWindow.GetIniFile())
      EgtSetGridFrame(Frame3d.GLOB)
      EgtSetGridGeo(dSnapStep, nMinLineSStep, nMajLineSStep, nExtSStep)
      EgtSetGridColor(MinLnColor, MajLnColor)
      Dim bShowGrid As Boolean = (GetPrivateProfileInt(S_GRID, K_SHOWGRID, 1, m_MainWindow.GetIniFile()) <> 0)
      EgtSetGridShow(bShowGrid, False)
   End Sub

   Private Function LoadCurrDir() As Boolean
      ' se direttorio corrente non valido, carico l'elenco dei dischi
      If String.IsNullOrWhiteSpace(m_sCurrDir) OrElse Not IO.Directory.Exists(m_sCurrDir) Then
         Return LoadDisks()
      End If
      Dim TempPath As New Text.StringBuilder(260)
      PathCompactPathEx(TempPath, m_sCurrDir, 28, 0)
      ' lo visualizzo
      FilePathTxBl.Content = TempPath.ToString
      ' pulisco la lista
      m_MainWindow.m_ImportItemList.Clear()
      ' per risalire al direttorio padre
      m_MainWindow.m_ImportItemList.Add(New IconListBoxItem("..", 0))
      ' elenco dei sottodirettori
      Dim DirInfo As New DirectoryInfo(m_sCurrDir)
      Dim vDirI As DirectoryInfo() = DirInfo.GetDirectories("*")
      Dim DirI As DirectoryInfo
      For Each DirI In vDirI
         ' per saltare i link, troppo complessi da gestire
         If (DirI.Attributes And FileAttributes.Hidden) <> FileAttributes.Hidden Or
            (DirI.Attributes And FileAttributes.System) <> FileAttributes.System Then
               m_MainWindow.m_ImportItemList.Add(New IconListBoxItem(DirI.Name, 2))
         End If
      Next
      ' elenco dei file
      Dim vFileI As FileInfo() = DirInfo.GetFiles()
      Dim FileI As FileInfo
      For Each FileI In vFileI
         Dim sExt As String = Path.GetExtension(FileI.Name).ToUpper()
         If sExt = ".DXF" Or sExt = ".NGE" Then
               m_MainWindow.m_ImportItemList.Add(New IconListBoxItem(FileI.Name, 3))
         End If
      Next
      ' pulisco la vista
      ClearView()
      Return True
   End Function

   Private Function LoadDisks() As Boolean
      ' dir corrente vuoto
      m_sCurrDir = ""
      ' lo visualizzo
      FilePathTxBl.Content = m_sCurrDir
      ' pulisco la lista
      m_MainWindow.m_ImportItemList.Clear()
      ' elenco dei dischi
      Dim vDriI As DriveInfo() = DriveInfo.GetDrives()
      Dim DriI As DriveInfo
      For Each DriI In vDriI
         m_MainWindow.m_ImportItemList.Add(New IconListBoxItem(DriI.Name, 1))
      Next
      ' pulisco la vista
      ClearView()
      Return True
   End Function

   Private Sub FileListBox_PreviewMouseUp(sender As Object, e As MouseButtonEventArgs) Handles FileListBox.PreviewMouseUp
      ' Recupero item selezionato
      If FileListBox.SelectedItems.Count() = 0 Then
         Return
      End If
      Dim vItems As IconListBoxItem = FileListBox.SelectedItems(0)

      ' A seconda del tipo
      Select Case vItems.PictureID
         Case 0        ' Vai nel direttorio padre
            m_sCurrDir = IO.Path.GetDirectoryName(m_sCurrDir)
            m_sCurrFile = ""
            LoadCurrDir()
         Case 1        ' Vai nella radice del disco
            m_sCurrDir = vItems.Name
            m_sCurrFile = ""
            LoadCurrDir()
         Case 2        ' Vai nel sottodirettorio
            m_sCurrDir = IO.Path.Combine(m_sCurrDir, vItems.Name)
            m_sCurrFile = ""
            LoadCurrDir()
         Case 3        ' File
            m_sCurrFile = vItems.Name
            LoadCurrFile()
      End Select

   End Sub

   Private Sub FileListBox_SelectionChanged(sender As Object, e As SelectionChangedEventArgs) Handles FileListBox.SelectionChanged
      ' Recupero item selezionato
      If FileListBox.SelectedItems.Count() = 0 Then
         Return
      End If
      Dim vItems As IconListBoxItem = FileListBox.SelectedItems(0)

      ' Gestisco solo aggiornamento visualizzazione file
      If vItems.PictureID = 3 Then
         m_sCurrFile = vItems.Name
         LoadCurrFile()
      End If
   End Sub

   Private Function ClearView() As Boolean
      ' Pulisco il DB geometrico locale
      EgtNewFile()
      ' Eseguo zoom
      ImportScene.ZoomAll()
      ' disabilito bottoni Process e Insert
      UseLayerBtn.IsEnabled = False
      UseClosedCurveBtn.IsEnabled = False
      UseRegionBtn.IsEnabled = False
      ResetBtn.IsEnabled = False
      Return True
   End Function

   Private Function LoadCurrFile() As Boolean
      ' Pulisco il DB geometrico locale
      Dim bOk As Boolean = EgtNewFile()
      ' Costruisco path completa del file
      Dim sPath = IO.Path.Combine(m_sCurrDir, m_sCurrFile)
      ' Riconoscimento tipo
      m_nFileType = EgtGetFileType(sPath)
      If m_nFileType = FT.DXF Then
         ' recupero unità di misura del file
         Dim dScale As Double = If(m_bMM, ONEMM, ONEINCH)
         ' Importo file DXF
         bOk = bOk AndAlso EgtImportDxf(sPath, dScale)
      ElseIf m_nFileType = FT.NGE Then
         ' Carico Nge
         bOk = bOk AndAlso EgtOpenFile(sPath)
         ' Filtro Nge
         bOk = bOk AndAlso FilterNge()
      Else
         ' Formato sconosciuto
         bOk = False
      End If
      ' Eseguo zoom
      ImportScene.ZoomAll()
      ' abilito bottoni UseLayer, UseClosedCurve e UseRegion, disabilito Reset e Insert
      UseLayerBtn.IsEnabled = True
      UseClosedCurveBtn.IsEnabled = True
      UseRegionBtn.IsEnabled = True
      ResetBtn.IsEnabled = False
      OkBtn.IsEnabled = False
      Return bOk
   End Function

   Private Sub OnMouseDownScene(sender As Object, e As System.Windows.Forms.MouseEventArgs) Handles ImportScene.OnMouseDownScene
      ' Si può selezionare solo con il tasto sinistro e se stato NULL
      If e.Button <> Windows.Forms.MouseButtons.Left Or Not ImportScene.IsStatusNull() Then
         Return
      End If
      ' Verifico se selezionato indicativo di pezzo
      EgtSetObjFilterForSelect(True, True, True, True, True)
      Dim nSel As Integer
      EgtSelect(e.Location, Scene.DIM_SEL, Scene.DIM_SEL, nSel)
      Dim nId As Integer = EgtGetFirstObjInSelWin()
      While nId <> GDB_ID.NULL
         ' Recupero l'identificativo del pezzo cui appartiene
         Dim nPartId As Integer = EgtGetParent(EgtGetParent(nId))
         If EgtIsPart(nPartId) Then
            Dim nStat As Integer = GDB_ST.ON_
            EgtGetStatus(nPartId, nStat)
            If nStat = GDB_ST.SEL Then
               EgtDeselectObj(nPartId)
            Else
               EgtSelectObj(nPartId)
            End If
            EgtDraw()
            Exit While
         End If
         nId = EgtGetNextObjInSelWin()
      End While
   End Sub

   Private Sub UseLayerBtn_Click(sender As Object, e As RoutedEventArgs) Handles UseLayerBtn.Click
      ' Creo i pezzi
      Dim nType As Integer = If(m_nFileType = FT.NGE, FPC_TYPE.NGE, FPC_TYPE.LAYER)
      EgtCreateFlatParts(nType)
      AdjustFlatParts()
      ' Eseguo zoom
      ImportScene.ZoomAll()
      ' disabilito bottoni UseLayer e UseRegion, abilito bottoni Reset e Insert
      UseLayerBtn.IsEnabled = False
      UseClosedCurveBtn.IsEnabled = False
      UseRegionBtn.IsEnabled = False
      ResetBtn.IsEnabled = True
      OkBtn.IsEnabled = True
   End Sub

   Private Sub UseClosedCurveBtn_Click(sender As Object, e As RoutedEventArgs) Handles UseClosedCurveBtn.Click
      ' Creo i pezzi
      Dim nType As Integer = If(m_nFileType = FT.NGE, FPC_TYPE.NGE, FPC_TYPE.CLOSEDCURVE)
      EgtCreateFlatParts(nType)
      AdjustFlatParts()
      ' Eseguo zoom
      ImportScene.ZoomAll()
      ' disabilito bottoni UseLayer e UseRegion, abilito bottoni Reset e Insert
      UseLayerBtn.IsEnabled = False
      UseClosedCurveBtn.IsEnabled = False
      UseRegionBtn.IsEnabled = False
      ResetBtn.IsEnabled = True
      OkBtn.IsEnabled = True
   End Sub

   Private Sub UseRegionBtn_Click(sender As Object, e As RoutedEventArgs) Handles UseRegionBtn.Click
      ' Creo i pezzi
      Dim nType As Integer = If(m_nFileType = FT.NGE, FPC_TYPE.NGE, FPC_TYPE.REGION)
      EgtCreateFlatParts(nType)
      AdjustFlatParts()
      ' Eseguo zoom
      ImportScene.ZoomAll()
      ' disabilito bottoni UseLayer e UseRegion, abilito bottoni Reset e Insert
      UseLayerBtn.IsEnabled = False
      UseClosedCurveBtn.IsEnabled = False
      UseRegionBtn.IsEnabled = False
      ResetBtn.IsEnabled = True
      OkBtn.IsEnabled = True
   End Sub

   Private Function FilterNge() As Boolean
      ' Rimuovo eventuali gruppi con livello System
      Dim nId As Integer = EgtGetFirstGroupInGroup(GDB_ID.ROOT)
      While nId <> GDB_ID.NULL
         ' Recupero il prossimo gruppo
         Dim nNextId = EgtGetNextGroup(nId)
         ' Verifico il livello e se necessario cancello
         Dim nLevel As Integer = GDB_LV.USER
         EgtGetLevel(nId, nLevel)
         If nLevel = GDB_LV.SYSTEM Then
            EgtErase(nId)
         End If
         ' Passo al prossimo gruppo
         nId = nNextId
      End While
      ' Processo i sottogruppi, se di livello System li rimuovo altrimenti ne cancello il nome
      Dim nGrpId As Integer = EgtGetFirstGroupInGroup(GDB_ID.ROOT)
      While nGrpId <> GDB_ID.NULL
         ' Ciclo sui sottogruppi
         Dim nSubId As Integer = EgtGetFirstGroupInGroup(nGrpId)
         While nSubId <> GDB_ID.NULL
            ' Recupero il prossimo sottogruppo
            Dim nNextSubId = EgtGetNextGroup(nSubId)
            ' Verifico il livello, eventuale cancellazione o rimozione nome
            Dim nLevel As Integer = GDB_LV.USER
            EgtGetLevel(nSubId, nLevel)
            If nLevel = GDB_LV.SYSTEM Then
               EgtErase(nSubId)
            Else
               EgtRemoveName(nSubId)
            End If
            nSubId = nNextSubId
         End While
         ' Passo al prossimo gruppo
         nGrpId = EgtGetNextGroup(nGrpId)
      End While
      Return True
   End Function

   Private Sub AdjustFlatParts()
      ' Ciclo sui pezzi
      Dim nPartId As Integer = EgtGetFirstPart()
      While nPartId <> GDB_ID.NULL
         ' Sistemo il pezzo
         AdjustFlatPart(nPartId)
         ' Passo al pezzo successivo
         nPartId = EgtGetNextPart(nPartId)
      End While
   End Sub

   Private Sub ResetBtn_Click(sender As Object, e As RoutedEventArgs) Handles ResetBtn.Click
      ' Ricarico file corrente
      LoadCurrFile()
   End Sub

   Private Sub mmBtn_Click(sender As Object, e As RoutedEventArgs) Handles mmBtn.Click, inchBtn.Click
      ' Dal bottone premuto imposto l'unità di misura
      Dim bMM As Boolean = mmBtn.IsChecked
      ' Se stato cambiato, salvo e ricarico file
      If m_bMM <> bMM Then
         m_bMM = bMM
         LoadCurrFile()
      End If
   End Sub

   Private Sub OkBtn_Click(sender As Object, e As RoutedEventArgs) Handles OkBtn.Click
      ' Vettore nomi file temporanei
      Dim sTmpFiles As New ArrayList()
      ' Ciclo di salvataggio dei pezzi
      Dim nId As Integer = EgtGetFirstPart()
      While nId <> GDB_ID.NULL
         ' Esporto il pezzo in un file temporaneo
         Dim sTmpFile As String = m_MainWindow.GetTempDir() & "\FlatPart" & nId & ".Nge"
         sTmpFiles.Add(sTmpFile)
         If Not EgtSaveObjToFile(nId, sTmpFile, NGE.BIN) Then
            Return
         End If
         ' Passo al pezzo successivo
         nId = EgtGetNextPart(nId)
      End While
      ' Passo al contesto principale
      EgtSetCurrentContext(m_MainWindow.m_CurrentProjectPageUC.CurrentProjectScene.GetCtx())
      ' Recupero flag per inserimento diretto in grezzo (altrimenti in parcheggio)
      Dim bDirect As Boolean = (GetPrivateProfileInt(S_NEST, K_DIRECT, 0, m_MainWindow.GetIniFile()) <> 0)
      ' Elimino eventuali precedenti pezzi vuoti
      EgtEraseEmptyParts()
      ' Ciclo di caricamento dei pezzi
      For Each sTmpfile As String In sTmpFiles
         If My.Computer.FileSystem.FileExists(sTmpfile) Then
            ' Inserisco il pezzo
            EgtInsertFile(sTmpfile)
            ' Ne recupero l'Id
            Dim nId2 As Integer = EgtGetLastPart()
            ' Muovo la regione in Z per evitare problemi in visualizzazione
            Dim nRegId = EgtGetFirstNameInGroup(nId2, NAME_REGION)
            EgtMove(nRegId, New Vector3d(0, 0, DELTAZ_REG), GDB_RT.GLOB)
            ' Inserisco in parcheggio
            m_MainWindow.m_CadCutPageUC.m_NestPage.StoreOnePart(nId2, True)
            ' Se richiesto posizionamento diretto, lo eseguo
            If bDirect Then
               m_MainWindow.m_CadCutPageUC.m_NestPage.InsertOnePart(nId2)
            End If
            ' Cancello il file
            My.Computer.FileSystem.DeleteFile(sTmpfile)
         End If
      Next
      ' Aggiorno ambiente principale
      EgtZoom(ZM.ALL)
      'Istruzioni per chiudere ImportPageUC e aprire CadCutPageUC
      m_MainWindow.MainWindowGrid.Children.Remove(m_MainWindow.m_ImportPageUC)
      m_MainWindow.MainWindowGrid.Children.Add(m_MainWindow.m_CurrentProjectPageUC)
      m_MainWindow.m_ActivePage = MainWindow.Pages.CadCut
   End Sub

   Private Sub ExitBtn_Click(sender As Object, e As RoutedEventArgs) Handles ExitBtn.Click
      'Istruzioni per chiudere ImportPageUC e aprire CadCutPageUC
      m_MainWindow.MainWindowGrid.Children.Remove(m_MainWindow.m_ImportPageUC)
      m_MainWindow.MainWindowGrid.Children.Add(m_MainWindow.m_CurrentProjectPageUC)
      m_MainWindow.m_ActivePage = MainWindow.Pages.CadCut
   End Sub

   Private Sub ImportPage_Unloaded(sender As Object, e As RoutedEventArgs)
      ' Salvo direttorio corrente
      WritePrivateProfileString(S_FLATPARTS, K_FLPCURRDIR, m_sCurrDir, m_MainWindow.GetIniFile())
   End Sub

End Class

Public Class IconListBoxItem

    Private m_iPictureID As Integer
    Private m_sName As String

    Public Property PictureID() As Integer
        Get
            Return m_iPictureID
        End Get
        Set(value As Integer)
            m_iPictureID = value
        End Set
    End Property

    Public Property Name() As String
        Get
            Return m_sName
        End Get
        Set(value As String)
            m_sName = value
        End Set
    End Property

    Public ReadOnly Property PictureString() As String
        Get
            Return "/Resources/ImportPageListBoxImages/" + PictureID.ToString() + ".png"
        End Get
    End Property

    Sub New()
        Me.Name = String.Empty
        Me.PictureID = 0
    End Sub

    Sub New(Name As String, PictureID As Integer)
        Me.Name = Name
        Me.PictureID = PictureID
    End Sub


End Class