protected override Rect GetBoundingRectangleCore()
{
if (this._item.Parent == null && this._item != this._item.Root && this._item.Name != null)
{
ModelItem modelItem = this.ModelService.FromName(this.ModelService.Root, this._item.Name, StringComparison.OrdinalIgnoreCase);
if (modelItem != null)
{
this._item = modelItem;
}
}
PresentationSource presentationSource = PresentationSource.FromVisual((Visual)DesignerView.FromContext(this._item.Context));
if (presentationSource == null || presentationSource.RootVisual == null || !this.ViewItem.IsVisible)
{
return(new Rect());
}
Rect selectionFrameBounds = ElementUtilities.GetSelectionFrameBounds(this.ViewItem);
if (selectionFrameBounds.Location == new Point(0.0, 0.0) && selectionFrameBounds.Size == new Size(0.0, 0.0))
{
return(new Rect());
}
Rect rect1 = new Rect(selectionFrameBounds.Size);
Rect rect2 = TransformUtil.GetSelectionFrameTransformToParentVisual(this.ViewItem, presentationSource.RootVisual).TransformBounds(rect1);
return(new Rect(presentationSource.RootVisual.PointToScreen(rect2.Location), rect2.Size));
}
internal static Transform GetSelectionFrameTransformToParentVisual(DependencyObject view, Visual ancestorView)
{
FrameworkElement frameworkElement = view as FrameworkElement;
if (frameworkElement != null && (frameworkElement.LayoutTransform == null || frameworkElement.LayoutTransform == Transform.Identity))
{
Transform toImmediateParent = TransformUtil.GetTransformToImmediateParent(view);
DependencyObject parent = VisualTreeHelper.GetParent(view);
Rect selectionFrameBounds = ElementUtilities.GetSelectionFrameBounds(view);
Vector vector = new Vector(selectionFrameBounds.X, selectionFrameBounds.Y);
Matrix matrix = toImmediateParent.Value;
matrix.Translate(vector.X, vector.Y);
if (parent != ancestorView)
{
Transform transformToAncestor = TransformUtil.GetTransformToAncestor(parent, ancestorView);
return((Transform) new MatrixTransform(matrix * transformToAncestor.Value));
}
}
return(TransformUtil.GetTransformToAncestor(view, ancestorView));
}
internal override Rect GetBoundingBox(ViewItem element)
{
return(ElementUtilities.GetSelectionFrameBounds(element));
}