protected sealed override void ArrangeCore(Rect finalRect)
{
Size finalSize = isDefaultAlignment ? finalRect.Size : new Size(
HorizontalAlignment != HorizontalAlignment.Stretch ? DesiredSize.Width : finalRect.Width,
VerticalAlignment != VerticalAlignment.Stretch ? DesiredSize.Height : finalRect.Height);
finalSize -= Margin.Size;
if (!layoutTransformValue.IsNullOrIdentity())
{
finalSize = layoutTransformValue.GetContainedSize(finalSize);
}
finalSize = Size.Combine(finalSize).Bounds(MinSize, MaxSize);
Size arrangedSize = ArrangeOverride(finalSize);
Rect containingRect = new Rect(arrangedSize);
if (!layoutTransformValue.IsNullOrIdentity())
{
containingRect = layoutTransformValue.GetContainingRect(containingRect);
}
containingRect = containingRect.AddMargin(Margin);
Point alignedOffset = GetAlignmentOffset(finalRect, containingRect.Size, HorizontalAlignment, VerticalAlignment);
Point visualOffset = alignedOffset - containingRect.Location;
VisualBounds = new Rect(visualOffset, arrangedSize);
ActualWidth = arrangedSize.Width;
ActualHeight = arrangedSize.Height;
ActualSize = arrangedSize;
}