public IVisualRenderElement GetRenderElement(IRenderElementFactory factory)
{
if (visualRenderElement == null)
{
renderElementFactory = factory;
visualRenderElement = factory.CreateVisualRenderElement(this);
visualRenderElement.Background = VisualBackground;
visualRenderElement.Bounds = VisualBounds;
visualRenderElement.Clip = VisualClip;
visualRenderElement.ClipToBounds = VisualClipToBounds;
visualRenderElement.IsHitTestVisible = VisualIsHitTestVisible;
visualRenderElement.IsVisible = VisualIsVisible;
visualRenderElement.Opacity = VisualOpacity;
visualRenderElement.Transform = VisualTransform;
object content = CreateRenderElementContentOverride(factory);
if (content != null)
{
renderChildrenOffset = 1;
visualRenderElement.InsertChild(0, content);
}
int index = 0;
foreach (Visual child in VisualChildren)
{
child.GetRenderElement(factory);
visualRenderElement.InsertChild(renderChildrenOffset + index, child.GetRenderElement(factory));
index++;
}
}
return(visualRenderElement);
}
private IVisualRenderElement CreateRenderElement(IRenderElementFactory factory)
{
IVisualRenderElement visualRenderElement = factory.CreateVisualRenderElement(this);
visualRenderElement.Background = VisualBackground;
visualRenderElement.Bounds = VisualBounds;
visualRenderElement.ClipToBounds = VisualClipToBounds;
visualRenderElement.IsHitTestVisible = VisualIsHitTestVisible;
visualRenderElement.IsVisible = VisualIsVisible;
visualRenderElement.Opacity = VisualOpacity;
visualRenderElement.Transform = VisualTransform;
visualRenderElement.Content = CreateRenderElementContentOverride(factory);
int index = 0;
foreach (Visual child in VisualChildren)
{
child.GetRenderElement(factory);
visualRenderElement.InsertChild(index, child.GetRenderElement(factory));
index++;
}
return(visualRenderElement);
}
public void AddVisualChild(Visual child)
{
if (child.VisualParent == this)
{
return;
}
if (child.VisualParent != null)
{
child.VisualParent.RemoveVisualChild(child);
}
child.VisualParent = this;
visualChildren.Add(child);
int renderChildIndex = visualChildren.Count - 1;
if (visualRenderElement != null)
{
visualRenderElement.InsertChild(renderChildrenOffset + renderChildIndex, child.GetRenderElement(renderElementFactory));
}
InvalidateHitTestBounds();
}
