?? plaftest.java
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/**
@version 1.31 2004-05-04
@author Cay Horstmann
*/
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class PlafTest
{
public static void main(String[] args)
{
PlafFrame frame = new PlafFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}
/**
A frame with a button panel for changing look and feel
*/
class PlafFrame extends JFrame
{
public PlafFrame()
{
setTitle("PlafTest");
setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
// add panel to frame
PlafPanel panel = new PlafPanel();
add(panel);
}
public static final int DEFAULT_WIDTH = 300;
public static final int DEFAULT_HEIGHT = 200;
}
/**
A panel with buttons to change the pluggable look and feel
*/
class PlafPanel extends JPanel
{
public PlafPanel()
{
UIManager.LookAndFeelInfo[] infos = UIManager.getInstalledLookAndFeels();
for (UIManager.LookAndFeelInfo info : infos)
makeButton(info.getName(), info.getClassName());
}
/**
Makes a button to change the pluggable look and feel.
@param name the button name
@param plafName the name of the look and feel class
*/
void makeButton(String name, final String plafName)
{
// add button to panel
JButton button = new JButton(name);
add(button);
// set button action
button.addActionListener(new
ActionListener()
{
public void actionPerformed(ActionEvent event)
{
// button action: switch to the new look and feel
try
{
UIManager.setLookAndFeel(plafName);
SwingUtilities.updateComponentTreeUI(PlafPanel.this);
}
catch(Exception e) { e.printStackTrace(); }
}
});
}
}
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