private void OnSplitterDragStarted(object sender, DragStartedEventArgs args)
{
SplitterGrip originalSource = args.OriginalSource as SplitterGrip;
if (originalSource == null)
{
return;
}
args.Handled = true;
originalSource.DragDelta += new DragDeltaEventHandler(this.OnSplitterResized);
originalSource.DragCompleted += new DragCompletedEventHandler(this.OnSplitterDragCompleted);
if (!this.ShowResizePreview)
{
return;
}
this.currentPreviewWindow = new SplitterResizePreviewWindow();
this.currentPreviewWindow.Show((UIElement)originalSource);
}
private void OnSplitterDragCompleted(object sender, DragCompletedEventArgs args)
{
SplitterGrip grip = sender as SplitterGrip;
if (grip == null)
{
return;
}
args.Handled = true;
if (this.IsShowingResizePreview)
{
this.currentPreviewWindow.Hide();
this.currentPreviewWindow = (SplitterResizePreviewWindow)null;
if (!args.Canceled)
{
Point logicalUnits = new Point(args.HorizontalChange, args.VerticalChange).DeviceToLogicalUnits();
this.CommitResize(grip, logicalUnits.X, logicalUnits.Y);
}
}
grip.DragDelta -= new DragDeltaEventHandler(this.OnSplitterResized);
grip.DragCompleted -= new DragCompletedEventHandler(this.OnSplitterDragCompleted);
}