Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Main {
    /**
     * Creates a sub-menu for changing Look'n'Feel.
     * @param rootComponent the root component which Look'n'Feel should be changed (child component are processed recursively).
     * @return a menu item with sub-menu items for each Look'n'Feel
     * installed in the system with associated actions to change the
     * Look'n'Feel for the <code>rootComponent</root>.
     */
    public static JMenu getLafMenu(final Component rootComponent) {
        JMenu jMenu = new JMenu("Look & Feel");
        ButtonGroup buttonGroup = new ButtonGroup();
        final UIManager.LookAndFeelInfo[] installedLFs = UIManager.getInstalledLookAndFeels();
        String currentLF = UIManager.getLookAndFeel().getName();
        for (int i = 0; i < installedLFs.length; i++) {
            JCheckBoxMenuItem jMenuItem = new JCheckBoxMenuItem(installedLFs[i].getName());
            jMenu.add(jMenuItem);
            buttonGroup.add(jMenuItem);
            jMenuItem.setState(currentLF.equals(installedLFs[i].getName()));
            class ChangeLF extends AbstractAction {
                private UIManager.LookAndFeelInfo iLF;

                public ChangeLF(UIManager.LookAndFeelInfo iLF) {
                    super(iLF.getName());
                    this.iLF = iLF;
                }

                public void actionPerformed(ActionEvent e) {
                    try {
                        UIManager.setLookAndFeel(iLF.getClassName());
                        SwingUtilities.updateComponentTreeUI(rootComponent);
                    } catch (Exception ex) {
                        System.out.print("Could not set look and feel: " + ex.toString());
                    }
                }
            }
            jMenuItem.setAction(new ChangeLF(installedLFs[i]));
        }
        return jMenu;
    }
}