Stacked Geometry Brush Factory

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Media;
using System.Windows;
using System.Windows.Markup;
namespace StackedGeometry
{
    [ContentProperty("StackedGeometry")][CustomXaml]
  public   class StackedGeometryBrushFactory:FrameworkElement 
    {

        VisualBrush mVB;

      public StackedGeometryBrushFactory()
      {
            mVB = new VisualBrush();
            mVB.Stretch = Stretch.Uniform;
      }

      public VisualBrush Brush
      {
              get { return mVB; }
       }

       private StackedGeometry mStackedGeometry;

      public StackedGeometry StackedGeometry
      {
           get{return mStackedGeometry;}
           set{mStackedGeometry=value;
           mVB.Visual = mStackedGeometry;}

      }

        private static void OnStackedGeometrySet(DependencyObject d, DependencyPropertyChangedEventArgs e)
     {

          StackedGeometryBrushFactory sgbf =   ( StackedGeometryBrushFactory)d ;
          sgbf.Brush.Visual  = (StackedGeometry)e.NewValue;
        }

    }
}