Using SwingUtilities.updateComponentTreeUI to update UI by platform settings
/*
This program is a part of the companion code for Core Java 8th ed.
(http://horstmann.com/corejava)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
/**
* @version 1.32 2007-06-12
* @author Cay Horstmann
*/
public class PlafTest
{
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
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);
buttonPanel = new JPanel();
UIManager.LookAndFeelInfo[] infos = UIManager.getInstalledLookAndFeels();
for (UIManager.LookAndFeelInfo info : infos)
makeButton(info.getName(), info.getClassName());
add(buttonPanel);
}
/**
* 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);
buttonPanel.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(PlafFrame.this);
}
catch (Exception e)
{
e.printStackTrace();
}
}
});
}
private JPanel buttonPanel;
public static final int DEFAULT_WIDTH = 300;
public static final int DEFAULT_HEIGHT = 200;
}
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