public static Rect GetBoundingRect()

in SamplesCommon/SamplesCommon/VisualTreeHelperExtensions.cs [90:125]

30 lines of code
5 McCabe index (conditional complexity)


        public static Rect GetBoundingRect(this FrameworkElement dob, FrameworkElement relativeTo = null)
        {
            if (relativeTo == null)
            {
                relativeTo = Window.Current.Content as FrameworkElement;
            }

            if (relativeTo == null)
            {
                throw new InvalidOperationException("Element not in visual tree.");
            }

            if (dob == relativeTo)
                return new Rect(0, 0, relativeTo.ActualWidth, relativeTo.ActualHeight);

            var ancestors = dob.GetAncestors().ToArray();

            if (!ancestors.Contains(relativeTo))
            {
                throw new InvalidOperationException("Element not in visual tree.");
            }

            var pos =
                dob
                    .TransformToVisual(relativeTo)
                    .TransformPoint(new Point());
            var pos2 =
                dob
                    .TransformToVisual(relativeTo)
                    .TransformPoint(
                        new Point(
                            dob.ActualWidth,
                            dob.ActualHeight));

            return new Rect(pos, pos2);
        }