path.lineTo(12,16); path.lineTo(18,16); path.lineTo(18,8); path.lineTo(12,8);
    public Shape getPrevImageShape()    {        GeneralPath path = new GeneralPath();        path.moveTo(12,0);        path.lineTo(0,12);        path.lineTo(12,24);        path.closePath();        return path;    }