LEADTOOLS Annotations (Leadtools.Annotations assembly)
LEAD Technologies, Inc

AnnContainer Class

Example 





Members 
Represents an Annotation container.
Object Model
AnnContainer ClassAnnRectangle StructureAnnPicture ClassAnnSnapToGridOptions ClassAnnUnitConverter Class
Syntax
[SerializableAttribute()]
public class AnnContainer : System.IDisposable  
'Declaration
 
<SerializableAttribute()>
Public Class AnnContainer 
   Implements System.IDisposable 
'Usage
 
Dim instance As AnnContainer
function Leadtools.Annotations.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
 
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
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: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also

Reference

AnnContainer Members
Leadtools.Annotations Namespace

 

 


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