Look and feel is not updating in Swing JTabbedPane
I have created an application in Java Swing. I offer the option to change the look and feel of the application from a menu, but after adding a new tab in JTabbedPane
, it is not getting updated with the new look and feel.
I have already used this code:
Window windows[] = Frame.getWindows();
for(Window window : windows) {
SwingUtilities.updateComponentTreeUI(window);
}
Leveraging @Andrew's example and this old thing, it seems to work for me.
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTabbedPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.JToolBar;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UIManager.LookAndFeelInfo;
/**
* @see https://stackoverflow.com/a/11949899/230513
* @see https://stackoverflow.com/a/5773956/230513
*/
public class JTabbedText {
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
private final JTabbedPane jtp = new JTabbedPane();
@Override
public void run() {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jtp.addTab("Model", createPanel());
jtp.addTab("View", createPanel());
jtp.addTab("Control", createPanel());
f.add(createToolBar(f), BorderLayout.NORTH);
f.add(jtp, BorderLayout.CENTER);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}
});
}
private static JToolBar createToolBar(final Component parent) {
final UIManager.LookAndFeelInfo[] available =
UIManager.getInstalledLookAndFeels();
List<String> names = new ArrayList<String>();
for (LookAndFeelInfo info : available) {
names.add(info.getName());
}
final JComboBox combo = new JComboBox(names.toArray());
String current = UIManager.getLookAndFeel().getName();
combo.setSelectedItem(current);
combo.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
int index = combo.getSelectedIndex();
try {
UIManager.setLookAndFeel(
available[index].getClassName());
SwingUtilities.updateComponentTreeUI(parent);
} catch (Exception e) {
e.printStackTrace(System.err);
}
}
});
JToolBar bar = new JToolBar("L&F");
bar.add(combo);
return bar;
}
private static Box createPanel() {
Box panel = new Box(BoxLayout.X_AXIS);
JLabel label = new JLabel("Code: ", JLabel.LEFT);
label.setAlignmentY(JLabel.TOP_ALIGNMENT);
JTextArea text = new JTextArea(4, 16);
text.setAlignmentY(JTextField.TOP_ALIGNMENT);
text.append("#" + panel.hashCode());
text.append("\n#" + label.hashCode());
text.append("\n#" + label.hashCode());
panel.add(label);
panel.add(text);
return panel;
}
}