//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
/// <summary>
/// Hit test on the children
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
internal UIElement HitTestOnElements(Point point)
{
UIElement hitElement = null;
// Do hittest.
HitTestResult hitTestResult = VisualTreeHelper.HitTest(this, point);
// Now find out which element is hit if there is a result.
if (hitTestResult != null)
{
Visual visual = hitTestResult.VisualHit as Visual;
System.Windows.Media.Media3D.Visual3D visual3D = hitTestResult.VisualHit as System.Windows.Media.Media3D.Visual3D;
DependencyObject currentObject = null;
if (visual != null)
{
currentObject = visual;
}
else if (visual3D != null)
{
currentObject = visual3D;
}
while (currentObject != null)
{
DependencyObject parent = VisualTreeHelper.GetParent(currentObject);
if (parent == InkCanvas.InnerCanvas)
{
// Break when we hit the inner canvas in the visual tree.
hitElement = currentObject as UIElement;
Debug.Assert(Children.Contains(hitElement), "The hit element should be a child of InnerCanvas.");
break;
}
else
{
currentObject = parent;
}
}
}
return(hitElement);
}
public System.Windows.Media.Media3D.GeneralTransform2DTo3D TransformToAncestor(System.Windows.Media.Media3D.Visual3D ancestor)
{
return(default(System.Windows.Media.Media3D.GeneralTransform2DTo3D));
}
public static System.Windows.Media.Media3D.Rect3D GetContentBounds(System.Windows.Media.Media3D.Visual3D reference)
{
Contract.Requires(reference != null);
return(default(System.Windows.Media.Media3D.Rect3D));
}
public static void HitTest(System.Windows.Media.Media3D.Visual3D reference, HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, System.Windows.Media.Media3D.HitTestParameters3D hitTestParameters)
{
Contract.Requires(reference != null);
Contract.Requires(resultCallback != null);
Contract.Requires(hitTestParameters != null);
}