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Thread: mouse Released no work!!

  1. #1
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    Default mouse Released no work!!

    hi all
    i'm trying to a function that listen to the mouse
    basically i want to start drawing square till the user released the mouse
    and than the square will disappear
    this is my function please help
      public void StartDelete()
        {
                        _pointX = new int[4];
                        _pointY = new int[4];
     
                      addMouseListener(new MouseAdapter(){
                @Override
                public void mousePressed(MouseEvent e){
                    if(_clearFlag)
                    {
                  _pointX[3] = e.getX();
                   _pointY[3]= e.getY();
                    }
                }
            });
            addMouseMotionListener(new MouseAdapter(){
     
                public void mouseDragged(MouseEvent e){
                    if(_clearFlag)
                    {
                           _pointX[0]=(e.getX()-_pointX[3])+_pointX[3];
                           _pointY[0]=_pointY[3];
                           _pointX[1]= e.getX();
                           _pointY[1] = e.getY();
                           _pointX[2]=_pointX[3];
                           _pointY[2]=e.getY();
     
                           repaint();
     
                }
                }
            });
                  addMouseMotionListener(new MouseAdapter(){
     
                public void mouseReleased(MouseEvent e){
                    if(_clearFlag)
                    {
                           _pointX=null;
                           _pointY=null;
     
                           repaint();
     
                }
                }
            });
        }
    and my repaint
    public void paintComponent(Graphics g){
     
            super.paintComponent(g);
            //////////////////////////////--------------------Display obstacle points----------------//////////////////////////////////////////////////
            g.setColor(Color.BLACK);
            LinkedList[] positive =  new LinkedList[_obstacleDataPoints.getPositiveArraySize()] ;
            LinkedList[] negative = new LinkedList[_obstacleDataPoints.getNegativeArraySize()];
            negative = _obstacleDataPoints.getNegativeNumbers();
            positive = _obstacleDataPoints.getPositiveNumbers();
     
            for(int i=0;i<positive.length-1;i++)
            {
                  PointX x;
               for(int j=0;j<positive[i].size();j++)
               {
                    x= (PointX)positive[i].get(j);
                 //  IfPointOutOfFrame(x.getX(),i);
     
                    g.fillOval(ConvertXRobotDataToDraw(x.getX()),ConvertYRobotDataToDraw(i), 4, 4);
     
     
               }
     
            }
                    for(int i=1;i<negative.length-1;i++)
            {
                  PointX x;
               for(int j=0;j<negative[i].size();j++)
               {
                    x= (PointX)negative[i].get(j);
                 //  IfPointOutOfFrame(x.getX(),i);
     
                    g.fillOval(ConvertXRobotDataToDraw(x.getX()),ConvertYRobotDataToDraw(-i), 4, 4);
     
     
               }
     
            }
    [B]if(_pointX!=null&&_pointY!=null)
        g.drawPolygon(_pointX, _pointY, 4);[/B]
     
     }

    in run time this mouseReleased dosent work he wont get in to this func when i Release the button
    10X


  2. #2
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    Default Re: mouse Released no work!!

    MouseMotionListener doesn't specify mouseReleased, so I don't think that method is ever being called. Have your anonymous class implement MouseListener instead.

    Also, why are you using different anonymous classes for the various methods? You only need a single implementation of MouseListener and a single implementation of MouseMotionListener.

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