private void HitTesting(Point hitPoint)
{
bool hitConnectionNodeFlag = false;
DependencyObject hitObject = DiagramCanvas.InputHitTest(hitPoint) as DependencyObject;
while (hitObject != null &&
hitObject != sourceConnectionNode.ParentDiagramElement &&
hitObject.GetType() != typeof(DiagramCanvas))
{
if (hitObject is ConnectionNode)
{
HitConnectionNode = hitObject as ConnectionNode;
hitConnectionNodeFlag = true;
}
if (hitObject is DiagramElement)
{
HitDiagramElement = hitObject as DiagramElement;
if (!hitConnectionNodeFlag)
{
HitConnectionNode = null;
}
return;
}
hitObject = VisualTreeHelper.GetParent(hitObject);
}
HitConnectionNode = null;
HitDiagramElement = null;
}
