/// <summary>
/// Make the given visual at the given bounds visible.
/// </summary>
/// <param name="visual">The visual that will become visible</param>
/// <param name="rectangle">The bounds of that visual</param>
/// <returns>The bounds that is actually visible.</returns>
public Rect MakeVisible(Visual visual, Rect rectangle)
{
if (_zoom != null && visual != this)
{
return(_zoom.ScrollIntoView(visual as FrameworkElement));
}
return(rectangle);
}