public void driverNotification(DriverEvent event) {
   _lyr.getFLayerStatus().setDriverLoaded(true);
   _lyr.setTocStatusImage(null);
   // _lyr.setCachingDrawnLayers(false);
   _lyr.getMapContext().invalidate();
 }
 public DefaultDelayedDriverListener(FLyrVect lyr) {
   _lyr = lyr;
   // _lyr.setCachingDrawnLayers(true);
   _lyr.getFLayerStatus().setDriverLoaded(false);
   _lyr.setTocStatusImage(driverLoading);
 }