Source of ScribbleCanvas.java

Structures and functions

public class ScribbleCanvas extends JPanel 

  1: 
  2: package scribble1; 
  3: 
  4: import java.awt.*;
  5: import java.awt.event.*;
  6: import java.util.EventListener;
  7: import javax.swing.*; 
  8: 
  9: public class ScribbleCanvas extends JPanel { 
 10: 
 11:   public ScribbleCanvas() { 
 12:     listener = new ScribbleCanvasListener(this); 
 13:     addMouseListener((MouseListener) listener); 
 14:     addMouseMotionListener((MouseMotionListener) listener); 
 15:   }
 16: 
 17:   protected EventListener listener;
 18:   protected boolean mouseButtonDown = false; 
 19:   protected int x, y; 
 20: 
 21: }
 22: