private void ShowAdorner()
{
if (adorner == null)
{
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this);
if (adornerLayer != null)
{
ContentControl designerItem = DataContext as ContentControl;
Canvas canvas = VisualTreeHelper.GetParent(designerItem) as Canvas;
adorner = new ResizeRotateAdorner(designerItem);
adornerLayer.Add(adorner);
if (ShowDecorator)
{
adorner.Visibility = Visibility.Visible;
var anim = new DoubleAnimation(0, 1, TimeSpan.FromSeconds(.2));
adorner.BeginAnimation(OpacityProperty, anim);
}
else
{
adorner.Visibility = Visibility.Hidden;
}
}
}
else
{
adorner.Visibility = Visibility.Visible;
var anim = new DoubleAnimation(0, 1, TimeSpan.FromSeconds(.2));
adorner.BeginAnimation(OpacityProperty, anim);
}
}