private void DragFinished(bool cancelled)
{
System.Windows.Input.Mouse.Capture(null);
if (_isDragging)
{
AdornerLayer.GetAdornerLayer(_overlayElement.AdornedElement).Remove(_overlayElement);
if (cancelled == false)
{
Canvas.SetTop(_draggedElement, _originalTop + _overlayElement.TopOffset);
Canvas.SetLeft(_draggedElement, _originalLeft + _overlayElement.LeftOffset);
ctrVM.ChagneOriginXPosition(_originalLeft + _overlayElement.LeftOffset);
ctrVM.ChagneOriginYPosition(_originalTop + _overlayElement.TopOffset);
}
_overlayElement = null;
}
_isDragging = false;
_isPreMouseDown = false;
}
private void DragStarted()
{
_isDragging = true;
_originalLeft = Canvas.GetLeft(_draggedElement);
_originalTop = Canvas.GetTop(_draggedElement);
_overlayElement = new SimpleCircleAdorner(_draggedElement);
layer = AdornerLayer.GetAdornerLayer(_draggedElement);
layer.Add(_overlayElement);
}