//public static int GetAdornerIndex(this Adorner adorner)
//{
// return (int)adorner.GetValue(AdornerIndexProperty);
//}
public static void AddAdorner(this FrameworkElement element, Adorner adorner, int depth = 1, int zindex = -1)
{
var items = element.GetAdorners();
if (items == null)
{
items = new List <AdornerData>();
element.SetValue(AdornersProperty, items);
}
if (items.Count(item => item.Adorner == adorner) == 0)
{
var data = new AdornerData()
{
Adorner = adorner,
Depth = depth,
ZIndex = zindex
};
adorner.SetAdornerData(data);
items.Add(data);
ApplyAdorner(element, data);
}
}
private static void SetLayerZOrder(Adorner adorner, int index)
{
AdornerData data = adorner.GetAdornerData();
if (data.ParentLayer != null && data.ParentLayer.Equals(adorner.Parent))
{
setZOrderMethodInfo.Invoke(data.ParentLayer, new object[] { adorner, index });
}
}
public static void SetAdornerIndex(this Adorner adorner, int index)
{
AdornerData data = adorner.GetAdornerData();
if (data != null && data.ParentLayer != null)
{
data.ZIndex = index;
SetLayerZOrder(adorner, index);
}
}
private static void ApplyAdorner(FrameworkElement element, AdornerData data)
{
if (element.IsLoaded && element.IsVisible)
{
ApplyAdornerCore(element, data);
}
else
{
if (!pendingElements.Contains(element))
{
pendingElements.Add(element);
element.Loaded += Element_Loaded;
}
}
}
private static void ApplyAdornerCore(FrameworkElement element, AdornerData data)
{
AdornerLayer layer = GetAdornerLayer(element, data.Depth);
if (layer == null)
{
return;
}
data.ParentLayer = layer;
layer.Add(data.Adorner);
int index = data.ZIndex;
if (index < 0)
{
index = 0;
}
//SetLayerZOrder(data.Adorner, data.Adorner.GetAdornerIndex());
SetLayerZOrder(data.Adorner, index);
}
private static void SetAdornerData(this Adorner adorner, AdornerData data)
{
adorner.SetValue(AdornerDataProperty, data);
}