sdk/samples/WPFSamples/Thumb/csharp/pane1.xaml.cs

   1 //This is a list of commonly used namespaces for a pane.
   2 using System;
   3 using System.Windows;
   4 using System.Windows.Controls;
   5 using System.Windows.Controls.Primitives;
   6 using System.Windows.Documents;
   7 using System.Windows.Navigation;
   8 using System.Windows.Shapes;
   9 using System.Windows.Data;
  10 using System.Windows.Media;
  11
  12 namespace Thumb_wcp
  13 {
  14     /// <summary>
  15     /// Interaction logic for Pane1.xaml
  16     /// </summary>
  17
  18     public partial class Pane1 : Canvas
  19     {
  20         void onDragDelta(object sender, DragDeltaEventArgs e)
  21         {
  22             //Move the Thumb to the mouse position during the drag operation
  23             double yadjust = myCanvasStretch.Height + e.VerticalChange;
  24             double xadjust = myCanvasStretch.Width + e.HorizontalChange;
  25             if ((xadjust >= 0) && (yadjust >= 0))
  26             {
  27                 myCanvasStretch.Width = xadjust;
  28                 myCanvasStretch.Height = yadjust;
  29                 Canvas.SetLeft(myThumb, Canvas.GetLeft(myThumb) +
  30                                         e.HorizontalChange);
  31                 Canvas.SetTop(myThumb, Canvas.GetTop(myThumb) +
  32                                         e.VerticalChange);
  33                 changes.Text = "Size: " +
  34                                 myCanvasStretch.Width.ToString() +
  35                                  ", " +
  36                                 myCanvasStretch.Height.ToString();
  37             }
  38         }
  39
  40         void onDragStarted(object sender, DragStartedEventArgs e)
  41         {
  42             myThumb.Background = Brushes.Orange;
  43         }
  44
  45         void onDragCompleted(object sender, DragCompletedEventArgs e)
  46         {
  47             myThumb.Background = Brushes.Blue;
  48         }
  49
  50     }
  51 }