BufferedShapeLayer

Hey all,

I found that BufferedShapeLayer repaints much faster if I create a copy of
the Graphics object, paint on this buffer, then paint it back on the
original Graphics object.
Modified paint() is below. Is there a reason why this was not done before?

-Chinh

    /**
     * Renders the layer on the map.
     *
     * @param g a graphics context
     */
    public void paint (Graphics g) {
   // grab local for thread safety
   OMGraphicList omg = omgraphics;

   Graphics g2 = g.create();

   if (omg != null){
       if (Debug.debugging("shape"))
      Debug.output("ShapeLayer.paint(): " + omg.size() +
              " omg" + " shadow=" + shadowX + "," + shadowY);

       if (shadowX != 0 || shadowY != 0){
      Graphics shadowG = g2.create();
      shadowG.translate(shadowX, shadowY);
      omg.render(shadowG);
       } else {
      omg.render(g2);
       }
       if (Debug.debugging("shape")){
      Debug.output("ShapeLayer.paint(): done");
       }
   }
    ((Graphics2D)g).draw(g2.getClip());
    g2.dispose();
    g.dispose();
    }

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