Does JLabel have default implementation of mouseMotionListener?

Question

I want to ask if JLabel has default implementation of mouseMotionListener.

I use addAWTEventListener method to Toolkit.getDefaultToolkit() with MOUSE_MOTION_EVENT_MASK in order to runtime it will be able to know over which control the mouse is. Over jButton, jFrame, jTextfield everything work fine but over JLabel , JPanel and others do not.

If I add to JLabel the code above

lblNewLabel_1.addMouseMotionListener(new MouseMotionAdapter() {
        @Override
        public void mouseMoved(MouseEvent e) {
        }
    });

it works.

I have to add something similar to all controls which now haven't MouseMotionListener?

Answer 1

  public class something implements MouseMotionListener{    

      public something(){
        button.addMouseMotionListener(this);
        frame.addMouseMotionListener(this);
        panel.addMouseMotionListener(this);
        JTextField.addMouseMotionListener(this);          
      }   

//MouseMotionListener methods

     @Override
     public void mouseDragged(MouseEvent e) {    
        // TODO Auto-generated method stub          
    }

    @Override
    public void mouseMoved(MouseEvent e) {    
        // TODO Auto-generated method stub          
    }     
}

And yes you must add a mouseOrMotion Listener or action Listener if you expect an action from them

And something more when you want to add a JLabel to window don't add it directly but first add the JLabel to a JPanel and then window.add(panel). Cause JLabel is lightweight component and JFrame heavyweight and may cause you a lot of problems with listeners.

Let me know if that's not enough...