MenuActionExample.java Source code

Introduction

Here is the source code for MenuActionExample.java

Source

/*
Java Swing, 2nd Edition
By Marc Loy, Robert Eckstein, Dave Wood, James Elliott, Brian Cole
ISBN: 0-596-00408-7
Publisher: O'Reilly 
*/
// MenuActionExample.java
//This example create a menubar and toolbar both populated with Action
//objects.
//

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;

import javax.swing.AbstractAction;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JToolBar;
import javax.swing.border.BevelBorder;
import javax.swing.border.EtchedBorder;

public class MenuActionExample extends JPanel {

    public JMenuBar menuBar;

    public JToolBar toolBar;

    public MenuActionExample() {
        super(true);

        // Create a menu bar and give it a bevel border.
        menuBar = new JMenuBar();
        menuBar.setBorder(new BevelBorder(BevelBorder.RAISED));

        // Create a menu and add it to the menu bar.
        JMenu menu = new JMenu("Menu");
        menuBar.add(menu);

        // Create a toolbar and give it an etched border.
        toolBar = new JToolBar();
        toolBar.setBorder(new EtchedBorder());

        // Instantiate a sample action with the NAME property of
        // "Download" and the appropriate SMALL_ICON property.
        SampleAction exampleAction = new SampleAction("Download", new ImageIcon("action.gif"));

        // Finally, add the sample action to the menu and the toolbar.
        // These methods are no longer preferred:
        // menu.add(exampleAction);
        // toolBar.add(exampleAction);
        // Instead, you should create actual menu items and buttons:
        JMenuItem exampleItem = new JMenuItem(exampleAction);
        JButton exampleButton = new JButton(exampleAction);
        menu.add(exampleItem);
        toolBar.add(exampleButton);
    }

    class SampleAction extends AbstractAction {
        // This is our sample action. It must have an actionPerformed() method,
        // which is called when the action should be invoked.
        public SampleAction(String text, Icon icon) {
            super(text, icon);
        }

        public void actionPerformed(ActionEvent e) {
            System.out.println("Action [" + e.getActionCommand() + "] performed!");
        }
    }

    public static void main(String s[]) {
        MenuActionExample example = new MenuActionExample();
        JFrame frame = new JFrame("Action Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setJMenuBar(example.menuBar);
        frame.getContentPane().add(example.toolBar, BorderLayout.NORTH);
        frame.setSize(200, 200);
        frame.setVisible(true);
    }
}