private static Rect CalculateSubgraphBoundsInnerSpace(Visual visual, bool renderBounds)
{
Rect boundingBoxSubGraph = Rect.Empty;
int count = VisualTreeHelper.GetChildrenCount(visual);
for (int i = 0; i < count; i++)
{
Visual child = VisualTreeHelper.GetChild(visual, i) as Visual;
if (child != null && ((bool)CheckFlagsAndMethodInfo.Invoke(child, new object[] { Enum.Parse(VisualFlagsType, "VisibilityCache_Visible") }) || (bool)CheckFlagsAndMethodInfo.Invoke(child, new object[] { Enum.Parse(VisualFlagsType, "VisibilityCache_TakesSpace") })))
{
Rect boundingBoxSubGraphChild = CalculateSubgraphBoundsOuterSpace(child, renderBounds);
boundingBoxSubGraph.Union(boundingBoxSubGraphChild);
}
}
Rect contentBounds = VisualTreeHelper.GetContentBounds(visual);
if (renderBounds && (bool)IsEmptyRenderBoundsMethodInfo.Invoke(visual, new object[] { contentBounds }))
{
contentBounds = Rect.Empty;
}
boundingBoxSubGraph.Union(contentBounds);
return(boundingBoxSubGraph);
}
private static Rect CalculateSubgraphBoundsOuterSpace(Visual visual, bool renderBounds)
{
Rect boundingBoxSubGraph = CalculateSubgraphBoundsInnerSpace(visual, renderBounds);
if ((bool)CheckFlagsAndMethodInfo.Invoke(visual, new object[] { Enum.Parse(VisualFlagsType, "NodeHasEffect") }))
{
Effect effect = (Effect)GetValueMethodInfo(typeof(Effect)).Invoke(EffectFieldFieldInfo.GetValue(visual), new object[] { visual });
if (effect != null)
{
Rect unitBounds = new Rect(0, 0, 1, 1);
Rect unitTransformedBounds = (EffectMappingPropertyInfo.GetValue(effect) as GeneralTransform).TransformBounds(unitBounds);
Rect effectBounds = (Rect)UnitToWorldMethodInfo.Invoke(null, new object[] { unitTransformedBounds, boundingBoxSubGraph });
boundingBoxSubGraph.Union(effectBounds);
}
else
{
Debug.Assert(GetValueMethodInfo(BitmapEffectStateType).Invoke(BitmapEffectStateFieldFieldInfo.GetValue(visual), new object[] { visual }) != null);
}
}
Geometry clip = (Geometry)GetValueMethodInfo(typeof(Geometry)).Invoke(ClipFieldFieldInfo.GetValue(visual), new object[] { visual });
if (clip != null)
{
boundingBoxSubGraph.Intersect(clip.Bounds);
}
Transform transform = (Transform)GetValueMethodInfo(typeof(Transform)).Invoke(TransformFieldFieldInfo.GetValue(visual), new object[] { visual });
if ((transform != null) && (!(bool)IsIdentityPropertyInfo.GetValue(transform)))
{
Matrix matrix = transform.Value;
TransformRectMethodInfo.Invoke(null, new object[] { boundingBoxSubGraph, matrix });
}
if (!boundingBoxSubGraph.IsEmpty)
{
var _offset = (Vector)OffsetFieldInfo.GetValue(visual);
boundingBoxSubGraph.X += _offset.X;
boundingBoxSubGraph.Y += _offset.Y;
}
Rect?scrollClip = (Rect?)GetValueMethodInfo(typeof(Rect?)).Invoke(ScrollableAreaClipFieldFieldInfo.GetValue(visual), new object[] { visual });
if (scrollClip.HasValue)
{
boundingBoxSubGraph.Intersect(scrollClip.Value);
}
if ((bool)RectHasNaNMethodInfo.Invoke(null, new object[] { boundingBoxSubGraph }))
{
boundingBoxSubGraph.X = Double.NegativeInfinity;
boundingBoxSubGraph.Y = Double.NegativeInfinity;
boundingBoxSubGraph.Width = Double.PositiveInfinity;
boundingBoxSubGraph.Height = Double.PositiveInfinity;
}
return(boundingBoxSubGraph);
}
