/// <summary>
/// Handler to change the control layout when FittingPhotoToWindow changes so that
/// fit to window does indeed cause the photo to fit to window.
/// </summary>
/// <param name="newValue">The new FittingPhotoToWindow value.</param>
protected static void OnScaleChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
TagTarget tag = (TagTarget)sender;
if (tag != null)
{
double factor = (double)e.NewValue;
// Set size according to zoom factor
tag.Width = DEFAULT_SIZE * factor;
tag.Height = DEFAULT_SIZE * factor;
tag.Margin = new Thickness(-tag.Width / 2);
}
}
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
_photoDisplay = this.Template.FindName("PART_PhotoDisplay", this) as PhotoDisplayControl;
Assert.IsNotNull(_photoDisplay);
_tagTarget = this.Template.FindName("PART_TagTargetElement", this) as TagTarget;
Assert.IsNotNull(_tagTarget);
_photoDisplayGrid = this.Template.FindName("PART_PhotoDisplayGrid", this) as Grid;
Assert.IsNotNull(_photoDisplayGrid);
_photoTagger = this.Template.FindName("PART_PhotoTaggerControl", this) as PhotoTaggerControl;
Assert.IsNotNull(_photoTagger);
_fitPhotoControl = this.Template.FindName("PART_FitPhotoFrame", this) as Control;
//Assert.IsNotNull(_fitPhotoControl);
_photoDisplay.FitControl = _fitPhotoControl;
//_photoScrollViewer.PreviewMouseWheel += new MouseWheelEventHandler(OnPhotoScrollViewerPreviewMouseWheel);
_photoDisplay.PhotoStateChanged += new PhotoStateChangedEventHandler(PhotoDisplay_PhotoStateChanged);
// Focus the control so that we can grab keyboard events.
this.Focus();
}
