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import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
/**
* 作者:李 世贵
* JDK: 1.6
* 来源: http://blog.csdn.net/lishigui
* 欢迎转接,请保留作者和来源,谢谢!
* 2009-4-24 上午11:30:15
*/
public class FrameTest extends JFrame {
private JPanel panel;
private int width, height;
public static void main(String args[]) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
FrameTest frame = new FrameTest();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public FrameTest() {
super();
getContentPane().setLayout(null);
addMouseListener(new MouseAdapter() {
public void mouseClicked(final MouseEvent e) {
}
});
setBounds(100, 100, 500, 375);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
getContentPane().add(getPanel());
}
private void out() {
int width = this.getWidth() + 20;
int height = this.getHeight() + 20;
this.setSize(width, height);
this.setPreferredSize(new Dimension(width, height));
this.panel.setSize(width, height);
this.panel.setPreferredSize(new Dimension(width, height));
}
private void draw(Graphics gc) {
gc.setColor(Color.RED);
gc.fillRect(0, 0, width, height);
}
protected JPanel getPanel() {
if (panel == null) {
panel = new JPanel() {
public void paintComponent(Graphics gc) {
draw(gc);
}
};
panel.setBounds(0, 0, 492, 348);
panel.setLayout(null);
width = 492;
height = 348;
panel.addMouseListener(new MouseAdapter() {
public void mouseExited(final MouseEvent e) {
out();
}
});
final JButton button_1 = new JButton();
button_1.setBounds(137, 5, 106, 28);
button_1.setText("New JButton");
panel.add(button_1);
final JButton button = new JButton();
button.setBounds(248, 5, 106, 28);
button.setText("New JButton");
panel.add(button);
}
return panel;
}
}