/// <summary>
/// Internal method to show the adorner.
/// </summary>
private void ShowAdornerInternal()
{
if (_adorner != null)
{
// Already adorned.
return;
}
if (AdornerContent != null)
{
if (_adornerLayer == null)
{
_adornerLayer = AdornerLayer.GetAdornerLayer(this);
}
if (AdornerContent is FrameworkElement)
{
_adornedFrameworkElement = AdornerContent as FrameworkElement;
}
else
{
CreateAdornedFrameworkElementFromDataTemplateInResources();
}
if (_adornerLayer != null && _adornedFrameworkElement != null)
{
_adorner = new FrameworkElementAdorner(
_adornedFrameworkElement,
this,
HorizontalAdornerPlacement,
VerticalAdornerPlacement,
AdornerOffsetX,
AdornerOffsetY);
_adornerLayer.Add(_adorner);
UpdateAdornerDataContext();
}
}
}
/// <summary>
/// Internal method to hide the adorner.
/// </summary>
private void HideAdornerInternal()
{
if (_adornerLayer == null || _adorner == null)
{
// Not already adorned.
return;
}
_adornerLayer.Remove(_adorner);
_adorner.DisconnectChild();
_adorner = null;
_adornerLayer = null;
}