public final void addClip(final Area current_area){
  if (TRmask == null) {
    TRmask=new GeneralPath();
  }
  TRmask.append(current_area,false);
}

public final void addClip ( final Area current_area ) { if ( TRmask == null ) { TRmask = new GeneralPath ( ) ; } TRmask . append ( current_area , false ) ; }
add to clip ( used for tr 7 )
