/* * Copyright (c) 1995 - 2008 Sun Microsystems, Inc.  All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * *   - Redistributions of source code must retain the above copyright *     notice, this list of conditions and the following disclaimer. * *   - Redistributions in binary form must reproduce the above copyright *     notice, this list of conditions and the following disclaimer in the *     documentation and/or other materials provided with the distribution. * *   - Neither the name of Sun Microsystems nor the names of its *     contributors may be used to endorse or promote products derived *     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, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package misc;/* * This relies on having the Java Look and Feel Graphics Repository * (jlfgr-1_0.jar) in the class path.  You can download this file * from http://developer.java.sun.com/developer/techDocs/hi/repository/. * Put it in the class path using one of the following commands * (assuming jlfgr-1_0.jar is in a subdirectory named jars): * *   java -cp .;jars/jlfgr-1_0.jar ActionDemo [Microsoft Windows] *   java -cp .:jars/jlfgr-1_0.jar ActionDemo [UNIX] * */import javax.swing.AbstractAction;import javax.swing.Action;import javax.swing.JToolBar;import javax.swing.JButton;import javax.swing.ImageIcon;import javax.swing.JMenuItem;import javax.swing.JCheckBoxMenuItem;import javax.swing.JMenu;import javax.swing.JMenuBar;import javax.swing.JFrame;import javax.swing.JTextArea;import javax.swing.JScrollPane;import javax.swing.JPanel;import java.awt.*;import java.awt.event.*;public class ActionDemo extends JPanel                        implements ItemListener {    protected JTextArea textArea;    protected String newline = "\n";    protected Action leftAction, middleAction, rightAction;    protected JCheckBoxMenuItem[] cbmi;    public ActionDemo() {        super(new BorderLayout());        //Create a scrolled text area.        textArea = new JTextArea(5, 30);        textArea.setEditable(false);        JScrollPane scrollPane = new JScrollPane(textArea);        //Lay out the content pane.        setPreferredSize(new Dimension(450, 150));        add(scrollPane, BorderLayout.CENTER);        //Create the actions shared by the toolbar and menu.        leftAction =   new LeftAction(  "Go left",                                        createNavigationIcon("Back24"),                                        "This is the left button.",                                         new Integer(KeyEvent.VK_L));        middleAction = new MiddleAction("Do something",                                        createNavigationIcon("Up24"),                                        "This is the middle button.",                                         new Integer(KeyEvent.VK_M));        rightAction =  new RightAction( "Go right",                                        createNavigationIcon("Forward24"),                                        "This is the right button.",                                         new Integer(KeyEvent.VK_R));    }    /** Returns an ImageIcon, or null if the path was invalid. */    protected static ImageIcon createNavigationIcon(String imageName) {        String imgLocation = "toolbarButtonGraphics/navigation/"                             + imageName                             + ".gif";        java.net.URL imageURL = ActionDemo.class.getResource(imgLocation);        if (imageURL == null) {            System.err.println("Resource not found: "                               + imgLocation);            return null;        } else {            return new ImageIcon(imageURL);        }    }    public JMenuBar createMenuBar() {        JMenuItem menuItem = null;        JMenuBar menuBar;        //Create the menu bar.        menuBar = new JMenuBar();        //Create the first menu.        JMenu mainMenu = new JMenu("Menu");        Action[] actions = {leftAction, middleAction, rightAction};        for (int i = 0; i < actions.length; i++) {            menuItem = new JMenuItem(actions[i]);            menuItem.setIcon(null); //arbitrarily chose not to use icon            mainMenu.add(menuItem);        }        //Set up the menu bar.        menuBar.add(mainMenu);        menuBar.add(createAbleMenu());        return menuBar;    }    public void createToolBar() {        JButton button = null;        //Create the toolbar.        JToolBar toolBar = new JToolBar();        add(toolBar, BorderLayout.PAGE_START);        //first button        button = new JButton(leftAction);        if (button.getIcon() != null) {            button.setText(""); //an icon-only button        }        toolBar.add(button);        //second button        button = new JButton(middleAction);        if (button.getIcon() != null) {            button.setText(""); //an icon-only button        }        toolBar.add(button);        //third button        button = new JButton(rightAction);        if (button.getIcon() != null) {            button.setText(""); //an icon-only button        }        toolBar.add(button);    }    protected JMenu createAbleMenu() {        JMenu ableMenu = new JMenu("Action State");        cbmi = new JCheckBoxMenuItem[3];        cbmi[0] = new JCheckBoxMenuItem("First action enabled");        cbmi[1] = new JCheckBoxMenuItem("Second action enabled");        cbmi[2] = new JCheckBoxMenuItem("Third action enabled");        for (int i = 0; i < cbmi.length; i++) {            cbmi[i].setSelected(true);            cbmi[i].addItemListener(this);            ableMenu.add(cbmi[i]);        }        return ableMenu;    }    public void itemStateChanged(ItemEvent e) {        JCheckBoxMenuItem mi = (JCheckBoxMenuItem)(e.getSource());        boolean selected =            (e.getStateChange() == ItemEvent.SELECTED);        //Set the enabled state of the appropriate Action.        if (mi == cbmi[0]) {            leftAction.setEnabled(selected);        } else if (mi == cbmi[1]) {            middleAction.setEnabled(selected);        } else if (mi == cbmi[2]) {            rightAction.setEnabled(selected);        }    }    public void displayResult(String actionDescription,                                 ActionEvent e) {        String s = ("Action event detected: "                  + actionDescription                  + newline                  + "    Event source: " + e.getSource()                  + newline);        textArea.append(s);    }    public class LeftAction extends AbstractAction {        public LeftAction(String text, ImageIcon icon,                          String desc, Integer mnemonic) {            super(text, icon);            putValue(SHORT_DESCRIPTION, desc);            putValue(MNEMONIC_KEY, mnemonic);        }        public void actionPerformed(ActionEvent e) {            displayResult("Action for first button/menu item", e);        }    }    public class MiddleAction extends AbstractAction {        public MiddleAction(String text, ImageIcon icon,                            String desc, Integer mnemonic) {            super(text, icon);            putValue(SHORT_DESCRIPTION, desc);            putValue(MNEMONIC_KEY, mnemonic);        }        public void actionPerformed(ActionEvent e) {            displayResult("Action for second button/menu item", e);        }    }    public class RightAction extends AbstractAction {        public RightAction(String text, ImageIcon icon,                           String desc, Integer mnemonic) {            super(text, icon);            putValue(SHORT_DESCRIPTION, desc);            putValue(MNEMONIC_KEY, mnemonic);        }        public void actionPerformed(ActionEvent e) {            displayResult("Action for third button/menu item", e);        }    }    /**     * Create the GUI and show it.  For thread safety,     * this method should be invoked from the      * event-dispatching thread.     */    private static void createAndShowGUI() {        //Create and set up the window.        JFrame frame = new JFrame("ActionDemo");        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        //Create/set menu bar and content pane.        ActionDemo demo = new ActionDemo();        frame.setJMenuBar(demo.createMenuBar());        demo.createToolBar();        demo.setOpaque(true); //content panes must be opaque        frame.setContentPane(demo);        //Display the window.        frame.pack();        frame.setVisible(true);    }    public static void main(String[] args) {        //Schedule a job for the event-dispatching thread:        //creating and showing this application's GUI.        javax.swing.SwingUtilities.invokeLater(new Runnable() {            public void run() {                createAndShowGUI();            }        });    }}