public void mouseClicked(MouseEvent e){
        //System.out.println("mouseclicked");
        int times=e.getClickCount();
        Point point = _zoomPane.toViewCoordinates(e.getPoint());
        if(point.getX()>_map.getWidth() || point.getY()>_map.getHeight()){
          return;
        }
        if(times==1){
          _map.mouseSingleClicked(point);
        }
        if(times==2){
          _map.mouseDoubleClicked(point);
        }
      }