Menu Y
/*
Definitive Guide to Swing for Java 2, Second Edition
By John Zukowski
ISBN: 1-893115-78-X
Publisher: APress
*/
import java.awt.Event;
import java.awt.GridLayout;
import java.awt.LayoutManager;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import javax.swing.AbstractAction;
import javax.swing.AbstractButton;
import javax.swing.Action;
import javax.swing.ButtonGroup;
import javax.swing.ButtonModel;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.KeyStroke;
import javax.swing.MenuElement;
import javax.swing.MenuSelectionManager;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.event.MenuEvent;
import javax.swing.event.MenuKeyEvent;
import javax.swing.event.MenuKeyListener;
import javax.swing.event.MenuListener;
public class MenuY {
static class MenuActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
System.out.println("Selected: " + e.getActionCommand());
}
}
static class MyMenuListener implements MenuListener {
public void menuCanceled(MenuEvent e) {
System.out.println("Canceled");
}
public void menuDeselected(MenuEvent e) {
System.out.println("Deselected");
}
public void menuSelected(MenuEvent e) {
System.out.println("Selected");
}
}
static class MyChangeListener implements ChangeListener {
public void stateChanged(ChangeEvent event) {
Object source = event.getSource();
if (source instanceof AbstractButton) {
AbstractButton aButton = (AbstractButton) source;
ButtonModel aModel = aButton.getModel();
boolean armed = aModel.isArmed();
boolean pressed = aModel.isPressed();
boolean selected = aModel.isSelected();
System.out.println("Changed " + aButton.getText() + ": "
+ armed + "/" + pressed + "/" + selected);
/*
* } else if (source instanceof MenuSelectionManager) {
* MenuSelectionManager manager = (MenuSelectionManager)source;
* MenuElement path[] = manager.getSelectedPath(); for (int i=0,
* n=path.length; i <n; i++) { MenuElement item =
* (MenuElement)path[i]; System.out.print ("-->" +
* item.getClass().getName()); } System.out.println();
*/}
}
}
static class MyMenuKeyListener implements MenuKeyListener {
public void menuKeyPressed(MenuKeyEvent e) {
printInfo("Pressed", e);
}
public void menuKeyReleased(MenuKeyEvent e) {
printInfo("Released", e);
}
public void menuKeyTyped(MenuKeyEvent e) {
printInfo("Typed", e);
}
private void printInfo(String eventType, MenuKeyEvent e) {
System.out.print(eventType + ":");
MenuElement path[] = e.getPath();
/*
* for (int i=0, n=path.length; i <n; i++) { MenuElement item =
* (MenuElement)path[i]; System.out.print ("==>" +
* item.getClass().getName()); }
*/System.out.println();
}
}
public static void main(String args[]) {
ActionListener actionListener = new MenuActionListener();
MenuKeyListener menuKeyListener = new MyMenuKeyListener();
ChangeListener cListener = new MyChangeListener();
MenuListener menuListener = new MyMenuListener();
MenuSelectionManager manager = MenuSelectionManager.defaultManager();
manager.addChangeListener(cListener);
JFrame frame = new JFrame("MenuSample Example");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JMenuBar bar = new VerticalMenuBar();
// JMenuBar bar = new JMenuBar();
// File Menu, F - Mnemonic
JMenu file = new JMenu("File");
file.setMnemonic(KeyEvent.VK_F);
file.addChangeListener(cListener);
file.addMenuListener(menuListener);
file.addMenuKeyListener(menuKeyListener);
JPopupMenu popupMenu = file.getPopupMenu();
popupMenu.setLayout(new GridLayout(3, 3));
bar.add(file);
// File->New, N - Mnemonic
JMenuItem newItem = new JMenuItem("New", KeyEvent.VK_N);
newItem.addActionListener(actionListener);
newItem.addChangeListener(cListener);
newItem.addMenuKeyListener(menuKeyListener);
file.add(newItem);
// File->Open, O - Mnemonic
JMenuItem openItem = new JMenuItem("Open", KeyEvent.VK_O);
openItem.addActionListener(actionListener);
openItem.addChangeListener(cListener);
openItem.addMenuKeyListener(menuKeyListener);
file.add(openItem);
// File->Close, C - Mnemonic
JMenuItem closeItem = new JMenuItem("Close", KeyEvent.VK_C);
closeItem.addActionListener(actionListener);
closeItem.addChangeListener(cListener);
closeItem.addMenuKeyListener(menuKeyListener);
file.add(closeItem);
// Separator
file.addSeparator();
// File->Save, S - Mnemonic
JMenuItem saveItem = new JMenuItem("Save", KeyEvent.VK_S);
saveItem.addActionListener(actionListener);
saveItem.addChangeListener(cListener);
saveItem.addMenuKeyListener(menuKeyListener);
file.add(saveItem);
// Separator
file.addSeparator();
// File->Exit, X - Mnemonic
JMenuItem exitItem = new JMenuItem("Exit", KeyEvent.VK_X);
exitItem.addActionListener(actionListener);
exitItem.addChangeListener(cListener);
exitItem.addMenuKeyListener(menuKeyListener);
file.add(exitItem);
// Edit Menu, E - Mnemonic
JMenu edit = new JMenu("Edit");
edit.setMnemonic(KeyEvent.VK_E);
edit.addChangeListener(cListener);
edit.addMenuListener(menuListener);
edit.addMenuKeyListener(menuKeyListener);
bar.add(edit);
// Edit->Cut, T - Mnemonic, CTRL-X - Accelerator
JMenuItem cutItem = new JMenuItem("Cut", KeyEvent.VK_T);
cutItem.addActionListener(actionListener);
cutItem.addChangeListener(cListener);
cutItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X,
Event.CTRL_MASK));
cutItem.addMenuKeyListener(menuKeyListener);
edit.add(cutItem);
// Edit->Copy, C - Mnemonic, CTRL-C - Accelerator
JMenuItem copyItem = new JMenuItem("Copy", KeyEvent.VK_C);
copyItem.addActionListener(actionListener);
copyItem.addChangeListener(cListener);
copyItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,
Event.CTRL_MASK));
copyItem.addMenuKeyListener(menuKeyListener);
copyItem.setEnabled(false);
edit.add(copyItem);
// Edit->Paste, P - Mnemonic, CTRL-V - Accelerator, Disabled
JMenuItem pasteItem = new JMenuItem("Paste", KeyEvent.VK_P);
pasteItem.addActionListener(actionListener);
pasteItem.addChangeListener(cListener);
pasteItem.addMenuKeyListener(menuKeyListener);
pasteItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V,
Event.CTRL_MASK));
pasteItem.setEnabled(false);
edit.add(pasteItem);
// Separator
edit.addSeparator();
// Edit->Find, F - Mnemonic, F3 - Accelerator
JMenuItem findItem = new JMenuItem("Find", KeyEvent.VK_F);
findItem.addActionListener(actionListener);
findItem.addChangeListener(cListener);
findItem.addMenuKeyListener(menuKeyListener);
findItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F3, 0));
edit.add(findItem);
// Edit->Options Submenu, O - Mnemonic, at.gif - Icon Image File
Icon atIcon = new ImageIcon("at.gif");
Action findAction = new AbstractAction("Options", atIcon) {
ActionListener actionListener = new MenuActionListener();
public void actionPerformed(ActionEvent e) {
actionListener.actionPerformed(e);
}
};
findAction.putValue(Action.MNEMONIC_KEY, new Integer(KeyEvent.VK_O));
JMenuItem jMenuItem = new JMenuItem(findAction);
JMenu findOptions = new JMenu(findAction);
findOptions.addChangeListener(cListener);
findOptions.addMenuListener(menuListener);
findOptions.addMenuKeyListener(menuKeyListener);
// ButtonGrou for radio buttons
ButtonGroup directionGroup = new ButtonGroup();
// Edit->Options->Forward, F - Mnemonic, in group
JRadioButtonMenuItem forward = new JRadioButtonMenuItem("Forward", true);
forward.addActionListener(actionListener);
forward.addChangeListener(cListener);
forward.addMenuKeyListener(menuKeyListener);
forward.setMnemonic(KeyEvent.VK_F);
findOptions.add(forward);
directionGroup.add(forward);
// Edit->Options->Backward, B - Mnemonic, in group
JRadioButtonMenuItem backward = new JRadioButtonMenuItem("Backward");
backward.addActionListener(actionListener);
backward.addChangeListener(cListener);
backward.addMenuKeyListener(menuKeyListener);
backward.setMnemonic(KeyEvent.VK_B);
findOptions.add(backward);
directionGroup.add(backward);
// Separator
findOptions.addSeparator();
// Edit->Options->Case Sensitive, C - Mnemonic
JCheckBoxMenuItem caseItem = new JCheckBoxMenuItem("Case Sensitive");
caseItem.addActionListener(actionListener);
caseItem.addChangeListener(cListener);
caseItem.addMenuKeyListener(menuKeyListener);
caseItem.setMnemonic(KeyEvent.VK_C);
findOptions.add(caseItem);
edit.add(findOptions);
frame.setJMenuBar(bar);
// frame.getContentPane().add(bar, BorderLayout.EAST);
frame.setSize(350, 250);
frame.setVisible(true);
}
}
class VerticalMenuBar extends JMenuBar {
private static final LayoutManager grid = new GridLayout(0, 1);
public VerticalMenuBar() {
setLayout(grid);
}
}
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