src/share/classes/sun/java2d/SurfaceData.java

*** 1055,1060 ****
--- 1055,1070 ----
       * Returns destination associated with this SurfaceData.  This could be
       * either an Image or a Component; subclasses of SurfaceData are
       * responsible for returning the appropriate object.
       */
      public abstract Object getDestination();
+ 
+     /**
+      * Returns default scale factor of the destination surface. Scale factor
+      * describes the mapping between virtual and physical coordinates of the
+      * SurfaceData. If the scale is 2 then virtual pixel coordinates need to be
+      * doubled for physical pixels.
+      */
+     public int getDefaultScale() {
+         return 1;
+     }
  }