ActiveSubCellChanged Event

'Declaration
 
Public Event ActiveSubCellChanged As EventHandler(Of MedicalViewerActiveSubCellChangedEventArgs)

Private Class MedicalViewerForm : Inherits Form
      Private _medicalViewer As MedicalViewer
      Private Sub MedicalViewerForm_SizeChanged(ByVal sender As Object, ByVal e As EventArgs)
         _medicalViewer.Size = New Size(Me.ClientRectangle.Right, Me.ClientRectangle.Bottom)
      End Sub

      Public Sub New()
         Dim _codecs As RasterCodecs = New RasterCodecs()
         Dim _image As RasterImage

         AddHandler SizeChanged, AddressOf MedicalViewerForm_SizeChanged

         ' Create the medical viewer and adjust the size and the location.
         _medicalViewer = New MedicalViewer(1, 2)
         _medicalViewer.Location = New Point(0, 0)
         _medicalViewer.Size = New Size(Me.ClientRectangle.Right, Me.ClientRectangle.Bottom)

         ' Load an image and then add it to the control.
         _image = _codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "xa.dcm"))
         Dim cell As MedicalViewerMultiCell = New MedicalViewerMultiCell(_image, True, 1, 1)

             ' add some actions that will be used to change the properties of the images inside the control.
         cell.AddAction(MedicalViewerActionType.WindowLevel)
         cell.AddAction(MedicalViewerActionType.Alpha)
         cell.AddAction(MedicalViewerActionType.Offset)
         cell.AddAction(MedicalViewerActionType.Stack)

             ' assign the added actions to a mouse button, meaning that when the user clicks and drags the mouse button, the associated action will be activated.
             cell.SetAction(MedicalViewerActionType.Stack, MedicalViewerMouseButtons.Wheel, MedicalViewerActionFlags.Active)
             cell.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active)
             cell.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active)
             cell.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active)

             ' adjust some properties of the cell and add some tags.
             cell.SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448")
             cell.SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame)
             cell.SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale)
             cell.SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData)
             cell.SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView)

             _medicalViewer.Cells.Add(cell)



             ' Load another image and then add it to the control.
             _image = _codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "mr.dcm"))
             Dim cell1 As MedicalViewerMultiCell = New MedicalViewerMultiCell(_image, True, 2, 2)
             _medicalViewer.Cells.Add(cell1)

             ' add some actions that will be used to change the properties of the images inside the control.
             cell1.AddAction(MedicalViewerActionType.WindowLevel)
             cell1.AddAction(MedicalViewerActionType.Alpha)
             cell1.AddAction(MedicalViewerActionType.Offset)
             cell1.AddAction(MedicalViewerActionType.Stack)

             ' assign the added actions to a mouse button, meaning that when the user clicks and drags the mouse button, the associated action will be activated.
             cell1.SetAction(MedicalViewerActionType.Stack, MedicalViewerMouseButtons.Wheel, MedicalViewerActionFlags.Active)
             cell1.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active)
             cell1.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active)
             cell1.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active)

             ' adjust some properties of the cell and add some tags.
         cell1.SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448")
         cell1.SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame)
         cell1.SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale)
         cell1.SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData)
         cell1.SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView)


         Controls.Add(_medicalViewer)
         _medicalViewer.Dock = DockStyle.Fill
      End Sub
      Public ReadOnly Property Viewer() As MedicalViewer
         Get
            Return _medicalViewer
         End Get
      End Property
   End Class

   Private Function GetMedicalControl() As MedicalViewerForm
      Return New MedicalViewerForm()
   End Function

   ' This example will link the active sub-cell of the  first cell to the second cell and vice versa.

   Public Sub MedicalViewerActiveSubCellChangedExample()
      Dim myForm As MedicalViewerForm = GetMedicalControl()
      Dim medicalViewer As MedicalViewer = myForm.Viewer


      Dim cell As MedicalViewerMultiCell = CType(medicalViewer.Cells(0), MedicalViewerMultiCell)
      Dim cell1 As MedicalViewerMultiCell = CType(medicalViewer.Cells(1), MedicalViewerMultiCell)

      AddHandler cell.ActiveSubCellChanged, AddressOf medicalViewer_ActiveSubCellChanged
      AddHandler cell1.ActiveSubCellChanged, AddressOf cell1_ActiveSubCellChanged
      myForm.ShowDialog()
   End Sub

   Private Sub cell1_ActiveSubCellChanged(ByVal sender As Object, ByVal e As MedicalViewerActiveSubCellChangedEventArgs)
      medicalViewer_ActiveSubCellChanged(sender, e)
   End Sub

   Private Sub medicalViewer_ActiveSubCellChanged(ByVal sender As Object, ByVal e As MedicalViewerActiveSubCellChangedEventArgs)
      Dim cell As MedicalViewerMultiCell = CType(sender, MedicalViewerMultiCell)
      Dim index As Integer
      If (e.CellIndex = 1) Then
         index = 0
      Else
         index = 1
      End If
      Dim theOtherCell As MedicalViewerMultiCell = CType(cell.ParentViewer.Cells(index), MedicalViewerMultiCell)


      Dim stackProperties As MedicalViewerStack = CType(theOtherCell.GetActionProperties(MedicalViewerActionType.Stack), MedicalViewerStack)

      stackProperties.ActiveSubCell = e.SubCellIndex Mod (theOtherCell.Rows * theOtherCell.Columns)
      stackProperties.ScrollValue = e.SubCellIndex - stackProperties.ActiveSubCell
      theOtherCell.SetActionProperties(MedicalViewerActionType.Stack, stackProperties)
      stackProperties.Dispose()

   End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class