/// <summary>
/// Zooms with the mouse wheel.
/// </summary>
/// <param name="sender">The Deep Zoom Viewer.</param>
/// <param name="e">Mouse Wheel Event Args.</param>
private static void MouseWheelMoved(object sender, MouseWheelEventArgs e)
{
DeepZoomViewer viewer = (DeepZoomViewer)sender;
double zoomFactor = 1.5;
if (e.Delta < 0)
{
zoomFactor = 0.5;
}
viewer.Zoom(zoomFactor, viewer.lastMousePos);
}
/// <summary>
/// Clears up the event handlers.
/// </summary>
/// <param name="dependencyObject">The deep zoom viewer.</param>
/// <param name="eventArgs">Dependency Property Changed Event Args.</param>
private static void Source_Changed(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs eventArgs)
{
DeepZoomViewer viewer = (DeepZoomViewer)dependencyObject;
viewer.ClearHandlers();
}
/// <summary>
/// Updates the image source.
/// </summary>
/// <param name="dependencyObject">The deep zoom viewer.</param>
/// <param name="eventArgs">Dependency Property Changed Event Args.</param>
private static void SourceUri_Changed(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs eventArgs)
{
DeepZoomViewer viewer = (DeepZoomViewer)dependencyObject;
viewer.Source = new DeepZoomImageTileSource((Uri)eventArgs.NewValue);
}
