public override Size ArrangeChildren(FrameworkElement parent, UIElementCollection internalChildren, Size finalSize)
{
AdornerPanel adornerPanel = parent as AdornerPanel;
if (adornerPanel == null)
{
return(finalSize);
}
ModelItem model = adornerPanel.Model;
ViewItem adornedElement = model == null ? (ViewItem)null : model.View;
Vector vector = (Vector)parent.GetValue(TransformAwareAdornerLayout.DesignerElementScalingFactorWithZoom);
foreach (UIElement uiElement in internalChildren)
{
uiElement.SetValue(TransformAwareAdornerLayout.DesignerElementScalingFactorWithZoom, (object)vector);
AdornerPlacementCollection currentPlacements = AdornerPanel.GetCurrentPlacements(uiElement);
currentPlacements.ComputePlacement(AdornerCoordinateSpaces.Default, uiElement, adornedElement, new Vector(1.0, 1.0), finalSize);
Rect finalRect = new Rect((Point)currentPlacements.TopLeft, (Size)currentPlacements.Size);
finalRect.Width = BaseAdornerLayout.ValidateDouble(finalRect.Width, uiElement.RenderSize.Width);
finalRect.Height = BaseAdornerLayout.ValidateDouble(finalRect.Height, uiElement.RenderSize.Height);
uiElement.Arrange(finalRect);
if (uiElement is FrameworkElement)
{
if (adornerPanel.IsMirroredTransform)
{
uiElement.SetValue(FrameworkElement.FlowDirectionProperty, (object)FlowDirection.RightToLeft);
uiElement.RenderTransform = TransformAwareAdornerLayout.RTLAdornerTransformGroup.Create(uiElement, finalRect.Width);
}
else
{
uiElement.RenderTransform = TransformAwareAdornerLayout.RTLAdornerTransformGroup.Unwrap(uiElement);
uiElement.SetValue(FrameworkElement.FlowDirectionProperty, (object)FlowDirection.LeftToRight);
}
}
}
return(finalSize);
}
