bgr demo code nowayoucanswerthis

import java.awt.*;

import java.awt.event.*;

import java.io.*;

import java.util.*;

import javax.swing.*;

public class X extends JPanel {

private static final long serialVersionUID = 0L;

private javax.swing.Timer timer = null;

private Random rand = new Random();

public X(LayoutManager layout) {

super(layout);

}

//just is a dumb example, but you get the idea

//you may want to suspend animation when the window is iconified or deactivated

protected void paintComponent(Graphics g) {

super.paintComponent(g);

g.setColor(getBackground());

g.fillRect(0,0,getWidth(),getHeight());

if (timer == null) {

timer = new javax.swing.Timer(500, new ActionListener(){

public void actionPerformed(ActionEvent evt) {

setBackground(new Color(rand.nextInt(0x1000000)));

//repaint();

}

});

timer.start();

}

}

public static void main(String[] args) throws IOException {

Container cp = new X(new BorderLayout());

JTextArea area = new JTextArea();

area.setOpaque(false);

area.read(new FileReader("X.java"), null);

JScrollPane sp = new JScrollPane(area);

sp.setOpaque(false);

sp.getViewport().setOpaque(false);

cp.add(sp);

JPanel south = new JPanel();

south.setOpaque(false);

south.add(new JButton("ABC"));

south.add(new JButton("DEF"));

south.add(new JButton("GHI"));

cp.add(south, BorderLayout.SOUTH);

JFrame f = new JFrame("X");

f.setContentPane(cp);

f.setSize(300,200);

f.setLocationRelativeTo(null);

f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

f.setVisible(true);

}

}

DrLaszloJamf at 2007-7-1 12:17:39 >