LoadAnnotations(Stream,int) Method

Imports Leadtools 
Imports Leadtools.Drawing 
Imports Leadtools.Codecs 
Imports Leadtools.MedicalViewer 
Imports Leadtools.ImageProcessing 
Imports Leadtools.Annotations.Core 
Imports Leadtools.Annotations.Designers 
Imports Leadtools.Annotations.Rendering 
 
Private Class MedicalViewerForm16 : Inherits Form 
   Private _medicalViewer As MedicalViewer 
   Private LoadAnnotation As Button 
   Private SaveAnnotation As Button 
 
   Private Sub MedicalViewerForm_SizeChanged(ByVal sender As Object, ByVal e As EventArgs) 
      _medicalViewer.Bounds = New Rectangle(0, 100, Me.ClientRectangle.Right, Me.ClientRectangle.Bottom - 100) 
   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, 100) 
      _medicalViewer.Size = New Size(Me.ClientRectangle.Right, Me.ClientRectangle.Bottom - 100) 
 
      ' 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) 
      _medicalViewer.Cells.Add(cell) 
 
      ' add some actions that will be used to change the properties of the images inside the control. 
      cell.AddAction(MedicalViewerActionType.AnnotationRectangle) 
      cell.AddAction(MedicalViewerActionType.AnnotationEllipse) 
      cell.AddAction(MedicalViewerActionType.AnnotationHilite) 
 
      ' 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.AnnotationRectangle, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active) 
      cell.SetAction(MedicalViewerActionType.AnnotationEllipse, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active) 
      cell.SetAction(MedicalViewerActionType.AnnotationHilite, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active) 
 
      ' adjust some properties of the cell and add some tags. 
      _medicalViewer.Cells(0).SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448") 
      _medicalViewer.Cells(0).SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame) 
      _medicalViewer.Cells(0).SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale) 
      _medicalViewer.Cells(0).SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData) 
      _medicalViewer.Cells(0).SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView) 
 
 
      ' Load another image and then add it to the control. 
      _image = _codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "mr.dcm")) 
      _medicalViewer.Cells.Add(New MedicalViewerMultiCell(_image, True, 2, 2)) 
 
      ' add some actions that will be used to change the properties of the images inside the control. 
      _medicalViewer.Cells(1).AddAction(MedicalViewerActionType.AnnotationRectangle) 
      _medicalViewer.Cells(1).AddAction(MedicalViewerActionType.AnnotationEllipse) 
      _medicalViewer.Cells(1).AddAction(MedicalViewerActionType.AnnotationHilite) 
 
      ' 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. 
      _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.AnnotationRectangle, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active) 
      _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.AnnotationEllipse, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active) 
      _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.AnnotationHilite, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active) 
 
      ' adjust some properties of the cell and add some tags. 
      _medicalViewer.Cells(1).SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448") 
      _medicalViewer.Cells(1).SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame) 
      _medicalViewer.Cells(1).SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale) 
      _medicalViewer.Cells(1).SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData) 
      _medicalViewer.Cells(1).SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView) 
 
 
 
      LoadAnnotation = New Button() 
      LoadAnnotation.Bounds = New Rectangle(10, 10, 100, 30) 
      LoadAnnotation.Text = "Load Annotation" 
      AddHandler LoadAnnotation.Click, AddressOf LoadAnnotation_Click 
 
      SaveAnnotation = New Button() 
      SaveAnnotation.Bounds = New Rectangle(110, 10, 100, 30) 
      SaveAnnotation.Text = "Save Annotation" 
      AddHandler SaveAnnotation.Click, AddressOf SaveAnnotation_Click 
 
      Controls.AddRange(New Control() {_medicalViewer, LoadAnnotation, SaveAnnotation}) 
 
   End Sub 
 
   Public ReadOnly Property Viewer() As MedicalViewer 
      Get 
         Return _medicalViewer 
      End Get 
   End Property 
 
   Private Function GetFileStream() As FileStream 
      Dim fs As FileStream 
      If File.Exists(Path.Combine(LEAD_VARS.ImagesDir, "SavedAnnotation.ann")) Then 
         fs = New FileStream(Path.Combine(LEAD_VARS.ImagesDir, "SavedAnnotation.ann"), FileMode.Open) 
      Else 
         fs = File.Create(Path.Combine(LEAD_VARS.ImagesDir, "SavedAnnotation.ann")) 
      End If 
 
      Return fs 
   End Function 
 
   Private Sub SaveAnnotation_Click(ByVal sender As Object, ByVal e As EventArgs) 
      Dim fs As FileStream = GetFileStream() 
      Dim cell As MedicalViewerMultiCell = CType(_medicalViewer.Cells(0), MedicalViewerMultiCell) 
 
      cell.SaveAnnotations(fs, 0) 
      fs.Close() 
   End Sub 
 
   Private Sub LoadAnnotation_Click(ByVal sender As Object, ByVal e As EventArgs) 
      Dim fs As FileStream = GetFileStream() 
      Dim cell As MedicalViewerMultiCell = CType(_medicalViewer.Cells(0), MedicalViewerMultiCell) 
 
      cell.LoadAnnotations(fs, 0) 
      fs.Close() 
   End Sub 
End Class 
 
 
Private Function GetMedicalControl16() As MedicalViewerForm16 
   Return New MedicalViewerForm16() 
End Function 
 
' This example copied the annotation container of the sub-cell when user right clicks on it, and paste the annotation container on the sub-cell that the user click on it using the left mouse button. 
Public Sub MedicalViewerSaveAnnotationStreamExample() 
   Dim myForm As MedicalViewerForm16 = GetMedicalControl16() 
   Dim medicalViewer As MedicalViewer = myForm.Viewer 
 
   myForm.ShowDialog() 
End Sub 
 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class