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LEADTOOLS Annotations (Leadtools.Annotations assembly)
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AnnContainer Class






Members 
Leadtools.Annotations Namespace : AnnContainer Class
Represents an Annotation container.
Object Model
Syntax
[SerializableAttribute()]
public class AnnContainer : System.IDisposable  
'Declaration
 
<SerializableAttribute()>
Public Class AnnContainer 
   Implements System.IDisposable 
'Usage
 
Dim instance As AnnContainer

            

        

            

            

            

        

            

            
[SerializableAttribute()]
public ref class AnnContainer : public System.IDisposable  

            

        

            

        

            
            
            
            
Remarks
The annotation container is a rectangular area that holds annotation objects. The container is responsible for maintaining these objects as well as drawing them upon request.


            
Example
This example creates a new AnnContainer object, links it to a Leadtools.WinForms.RasterImageViewer object, adds a few objects and then draws the container on top of the viewer. Moving the mouse over an object displays the object type in the title bar.

             
    

            
            

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Imports Leadtools
Imports Leadtools.Annotations
Imports Leadtools.Codecs
Imports Leadtools.WinForms

Private Class MyForm1 : Inherits Form
   Private myAnnContainer As AnnContainer
   'AnnAutomationManager manager;
   Private viewer As RasterImageViewer
   Private codecs As RasterCodecs
   Public Sub New(ByVal title As String)
      Text = title
      Size = New Size(500, 200)

      viewer = New RasterImageViewer()
      viewer.Dock = DockStyle.Fill
      Controls.Add(viewer)
      viewer.BringToFront()

      ' load an image into the viewer
      codecs = New RasterCodecs()
      viewer.Image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp")) ' fix this path to an existing image file on your system

      ' create and set up the container
      myAnnContainer = New AnnContainer()
      myAnnContainer.Bounds = New AnnRectangle(0, 0, viewer.ImageSize.Width, viewer.ImageSize.Height)
      myAnnContainer.UnitConverter = New AnnUnitConverter(viewer.ImageDpiX, viewer.ImageDpiY)

      ' subscribe to the view PostTransformPaint and TransformChanged events to be able to correctly draw the container
      AddHandler viewer.PostImagePaint, AddressOf viewer_PostImagePaint
      AddHandler viewer.TransformChanged, AddressOf viewer_TransformChanged
      AddHandler viewer.MouseMove, AddressOf viewer_MouseMove

      ' add a few objects to the container
      Dim line As AnnLineObject = New AnnLineObject()
      line.Name = "Line1"
      line.Pen = New AnnPen(Color.Red, New AnnLength(1, AnnUnit.Pixel))
      line.StartPoint = New AnnPoint(0, 0, AnnUnit.Pixel)
      line.EndPoint = New AnnPoint(100, 100, AnnUnit.Pixel)
      myAnnContainer.Objects.Add(line)

      Dim rect As AnnRectangleObject = New AnnRectangleObject()
      rect.Name = "Rectangle1"
      rect.Pen = New AnnPen(Color.Blue, New AnnLength(1, AnnUnit.Pixel))
      rect.Brush = New AnnSolidBrush(Color.White)
      rect.Bounds = New AnnRectangle(25, 25, 50, 50, AnnUnit.Pixel)
      myAnnContainer.Objects.Add(rect)

      ' repaint the viewer
      viewer.Invalidate(myAnnContainer.InvalidRectangle)
   End Sub

   Private Sub viewer_PostImagePaint(ByVal sender As Object, ByVal e As PaintEventArgs)
      ' draw the container on top of the viewer
      myAnnContainer.Draw(e.Graphics)
   End Sub

   Private Sub viewer_TransformChanged(ByVal sender As Object, ByVal e As EventArgs)
      ' keep the container transform in synch with current viewer transformation (zoom, scroll, etc)
      myAnnContainer.Transform = viewer.Transform.Clone()
   End Sub

   Private Sub viewer_MouseMove(ByVal sender As Object, ByVal e As MouseEventArgs)
      ' perform hit-testing and update the status bar
      Dim pt As AnnPoint = New AnnPoint(e.X, e.Y, AnnUnit.Pixel)
      Dim obj As AnnObject = myAnnContainer.HitTest(pt, 2)
      If Not obj Is Nothing Then
         Text = String.Format("Type: {0}, Name: {1}, Value: {2}", obj.GetType().Name, obj.Name, obj.HitTest(pt, 2))
      Else
         Text = String.Empty
      End If
   End Sub
End Class




Private Sub AnnContainer_AnnContainer(ByVal title As String)
   Dim form As MyForm1 = New MyForm1(title)
   form.ShowDialog()
End Sub


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

            

   

     

            
using Leadtools;
using Leadtools.Annotations;
using Leadtools.Codecs;
using Leadtools.WinForms;

class MyForm1 : Form
{
   AnnContainer container;
   //AnnAutomationManager manager;
   RasterImageViewer viewer;
   RasterCodecs codecs;
   public MyForm1(string title)
   {
      Text = title;
      Size = new Size(500, 200);

      viewer = new RasterImageViewer();
      viewer.Dock = DockStyle.Fill;
      Controls.Add(viewer);
      viewer.BringToFront();

      // load an image into the viewer
      codecs = new RasterCodecs();
      string fileName = Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp");
      viewer.Image = codecs.Load(fileName);

      // create and set up the container
      container = new AnnContainer();
      container.Bounds = new AnnRectangle(0, 0, viewer.ImageSize.Width, viewer.ImageSize.Height);
      container.UnitConverter = new AnnUnitConverter(viewer.ImageDpiX, viewer.ImageDpiY);

      // subscribe to the view PostTransformPaint and TransformChanged events to be able to correctly draw the container
      viewer.PostImagePaint += new PaintEventHandler(viewer_PostImagePaint);
      viewer.TransformChanged += new EventHandler(viewer_TransformChanged);
      viewer.MouseMove += new MouseEventHandler(viewer_MouseMove);

      // add a few objects to the container
      AnnLineObject line = new AnnLineObject();
      line.Name = "Line1";
      line.Pen = new AnnPen(Color.Red, new AnnLength(1, AnnUnit.Pixel));
      line.StartPoint = new AnnPoint(0, 0, AnnUnit.Pixel);
      line.EndPoint = new AnnPoint(100, 100, AnnUnit.Pixel);
      container.Objects.Add(line);

      AnnRectangleObject rect = new AnnRectangleObject();
      rect.Name = "Rectangle1";
      rect.Pen = new AnnPen(Color.Blue, new AnnLength(1, AnnUnit.Pixel));
      rect.Brush = new AnnSolidBrush(Color.White);
      rect.Bounds = new AnnRectangle(25, 25, 50, 50, AnnUnit.Pixel);
      container.Objects.Add(rect);

      // repaint the viewer
      viewer.Invalidate(container.InvalidRectangle);
   }

   private void viewer_PostImagePaint(object sender, PaintEventArgs e)
   {
      // draw the container on top of the viewer
      container.Draw(e.Graphics);
   }

   private void viewer_TransformChanged(object sender, EventArgs e)
   {
      // keep the container transform in synch with current viewer transformation (zoom, scroll, etc)
      container.Transform = viewer.Transform.Clone();
   }

   private void viewer_MouseMove(Object sender, MouseEventArgs e)
   {
      // perform hit-testing and update the status bar
      AnnPoint pt = new AnnPoint(e.X, e.Y, AnnUnit.Pixel);
      AnnObject obj = container.HitTest(pt, 2);
      if(obj != null)
         Text = string.Format("Type: {0}, Name: {1}, Value: {2}", obj.GetType().Name, obj.Name, obj.HitTest(pt, 2));
      else
         Text = string.Empty;
   }
}




private void AnnContainer_AnnContainer(string title)
{
   MyForm1 form = new MyForm1(title);
   form.ShowDialog();
}


static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

            

   

      
	
      
	
    

            
           
            
Requirements
Target Platforms

            
            
See Also
Reference
AnnContainer Members

Leadtools.Annotations Namespace




        
    

	
    

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         (Deprecated, use Leadtools.Annotations.Core instead)