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  [SOLVED]how to add MouseListener to a JPanel from another class  (Read 551 times)
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Offline alaslipknot
« Posted 2013-04-20 21:26:34 »

hello i have a class that implements the MouseListener
this :
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package clickOfGod;

import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

public class Control implements MouseListener {

   public void mouseClicked(MouseEvent e) {

   }

   public void mouseEntered(MouseEvent e) {

   }

   public void mouseExited(MouseEvent e) {

   }

   public void mousePressed(MouseEvent e) {

      if (e.getButton() == e.BUTTON1) {
         System.out.println("pressed");
      }
   }

   public void mouseReleased(MouseEvent e) {

   }

}

and i want to make it work in my JPanel class
this :
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package clickOfGod;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;

import javax.swing.JPanel;

public class Board extends JPanel implements Runnable {
   // declaration
  private Ship ship;
   private Control mouse;
   private Thread loop;

   // constructor
  public Board() {
      setBackground(Color.gray);
      setDoubleBuffered(true);
      setFocusable(true);
      addMouseListener(mouse);
      init();
   }

   // initialisation
  private void init() {
      ship = new Ship();
     
      loop = new Thread(this);
      loop.start();
     
      mouse = new Control();
   }

   // painting
  public void paint(Graphics g) {

      Graphics2D g2d = (Graphics2D) g;
      g2d.drawRect(ship.getX(), ship.getY(), ship.getW(), ship.getH());

   }

   public void play() {
      System.out.println("test");
   }

   // game loop
  public void run() {

      while (true) {
         repaint();
         play();

         try {
            loop.sleep(50);
         } catch (InterruptedException e) {

            e.printStackTrace();
         }
      }

   }

}


i don't know what's wrong with it,
i created the class,create a new variable of that class, initialize it and then add a mouse listener to the JPanel
what's wrong  Huh

thank you

"It's not at all important to get it right the first time. It's vitally important to get it right the last time."
Offline alaslipknot
« Reply #1 - Posted 2013-04-20 23:02:46 »

xD
this one was very stupid  Roll Eyes
all i had to do is changing the order of the methods called in the constructor
init() must be called before the addMouseListener()

thank you

"It's not at all important to get it right the first time. It's vitally important to get it right the last time."
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