private void OnUpdate(Visual visual, Visual parent, bool forceArrange)
{
var element = visual as UIElement;
if (element != null)
{
var flags = element.UIFlags;
if (forceArrange || flags.HasFlag(UIElementFlags.MeasureDirty))
{
element.Measure(element.LastAvailableSize);
}
if (forceArrange || flags.HasFlag(UIElementFlags.ArrangeDirty))
{
forceArrange = true;
element.Arrange(GetArrangeRect(element));
}
}
if (forceArrange || visual.VisualFlags.HasFlag(VisualFlags.RenderDirty))
{
visual.Render();
}
foreach (var child in visual.VisualChildren)
{
OnUpdate(child, visual, forceArrange);
}
}
