MetalThemeMenu.java

/*
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 *
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 *
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 *     notice, this list of conditions and the following disclaimer.
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 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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/*
 * This source code is provided to illustrate the usage of a given feature
 * or technique and has been deliberately simplified. Additional steps
 * required for a production-quality application, such as security checks,
 * input validation and proper error handling, might not be present in
 * this sample code.
 */



import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.JMenu;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.UIManager;
import javax.swing.plaf.metal.MetalLookAndFeel;
import javax.swing.plaf.metal.MetalTheme;


/**
 * This class describes a theme using "green" colors.
 *
 * @author Steve Wilson
 * @author Alexander Kouznetsov
 */
@SuppressWarnings("serial")
public class MetalThemeMenu extends JMenu implements ActionListener {

    MetalTheme[] themes;

    @SuppressWarnings("LeakingThisInConstructor")
    public MetalThemeMenu(String name, MetalTheme[] themeArray) {
        super(name);
        themes = themeArray;
        ButtonGroup group = new ButtonGroup();
        for (int i = 0; i < themes.length; i++) {
            JRadioButtonMenuItem item = new JRadioButtonMenuItem(themes[i].
                    getName());
            group.add(item);
            add(item);
            item.setActionCommand(i + "");
            item.addActionListener(this);
            if (i == 0) {
                item.setSelected(true);
            }
        }

    }

    public void actionPerformed(ActionEvent e) {
        String numStr = e.getActionCommand();
        MetalTheme selectedTheme = themes[Integer.parseInt(numStr)];
        MetalLookAndFeel.setCurrentTheme(selectedTheme);
        try {
            UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
        } catch (Exception ex) {
            System.out.println("Failed loading Metal");
            System.out.println(ex);
        }

    }
}