shapeframe.java~11~

前段时间帮同学写了个简单动画程序：“贪食蛇的原型”

package com.cxlife.shape;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import com.borland.jbcl.layout.*;

public class ShapeFrame extends JFrame implements ActionListener {
  private JPanel contentPane;
  private Rectangle rect = null;
  private XYLayout xYLayout1 = new XYLayout();
  private JButton jButton1 = new JButton();//定义一个Rectangle对象
  private Timer timer = null;

  //Construct the frame
  public ShapeFrame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }

  }
  //Component initialization
  private void jbInit() throws Exception  {
    //setIconImage(Toolkit.getDefaultToolkit().createImage(ShapeFrame.class.getResource("[Your Icon]")));
    contentPane = (JPanel) this.getContentPane();
    jButton1.setText("jButton1");
    jButton1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButton1_actionPerformed(e);
      }
    });
    contentPane.setLayout(xYLayout1);
    this.setSize(new Dimension(400, 300));
    this.setTitle("Frame Title");
    rect = new Rectangle(0,0,200,60);
    contentPane.add(jButton1, new XYConstraints(190, 193, -1, -1));
    timer = new Timer(1000,this);
    timer.start();
  }
  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }
  public void paintComponents(Graphics g){
    super.paintComponents(g);
    this.paint(g);
  }
   public void paint(Graphics g) {
     super.paint(g);
     Graphics2D g2D = (Graphics2D)g;
     g2D.setColor(Color.red);
     g2D.fill(rect);

   }
   public void update(Graphics g){
     this.paint(g);
   }

  void jButton1_actionPerformed(ActionEvent e) {
    System.err.println("rect.x=" + rect.x);
    System.err.println("rect.y=" + rect.y);
     rect.setLocation(rect.x + 10,rect.y);
     this.invalidate();
     this.repaint();

  }
     public void actionPerformed(ActionEvent e) {
         rect.setLocation(rect.x + 10,rect.y);
         this.repaint();
     }

}