Menu created from property file
//Menus.properties
/*
# The file Menus.properties is the default "Menus" resource bundle.
# As an American programmer, I made my own locale the default.
colors.label=Colors
colors.red.label=Red
colors.red.accelerator=alt R
colors.green.label=Green
colors.green.accelerator=alt G
colors.blue.label=Blue
colors.blue.accelerator=alt B
*/
//Menus_fr.properties
/*
# This is the file Menus_fr.properties. It is the resource bundle for all
# French-speaking locales. It overrides most, but not all, of the resources
# in the default bundle.
colors.label=Couleurs
colors.red.label=Rouge
colors.green.label=Vert
colors.green.accelerator=control shift V
colors.blue.label=Bleu
*/
//Menus_en_GB.properties
/*
# This is the file Menus_en_GB.properties. It is the resource bundle for
# British English. Note that it overrides only a single resource definition
# and simply inherits the rest from the default (American) bundle.
colors.label=Colours
*/
///
/*
* Copyright (c) 2000 David Flanagan. All rights reserved.
* This code is from the book Java Examples in a Nutshell, 2nd Edition.
* It is provided AS-IS, WITHOUT ANY WARRANTY either expressed or implied.
* You may study, use, and modify it for any non-commercial purpose.
* You may distribute it non-commercially as long as you retain this notice.
* For a commercial use license, or to purchase the book (recommended),
* visit http://www.davidflanagan.com/javaexamples2.
*/
import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.KeyStroke;
/** A convenience class to automatically create localized menu panes */
public class SimpleMenu {
/** The convenience method that creates menu panes */
public static JMenu create(ResourceBundle bundle, String menuname,
String[] itemnames, ActionListener listener) {
// Get the menu title from the bundle. Use name as default label.
String menulabel;
try {
menulabel = bundle.getString(menuname + ".label");
} catch (MissingResourceException e) {
menulabel = menuname;
}
// Create the menu pane.
JMenu menu = new JMenu(menulabel);
// For each named item in the menu.
for (int i = 0; i < itemnames.length; i++) {
// Look up the label for the item, using name as default.
String itemlabel;
try {
itemlabel = bundle.getString(menuname + "." + itemnames[i]
+ ".label");
} catch (MissingResourceException e) {
itemlabel = itemnames[i];
}
JMenuItem item = new JMenuItem(itemlabel);
// Look up an accelerator for the menu item
try {
String acceleratorText = bundle.getString(menuname + "."
+ itemnames[i] + ".accelerator");
item.setAccelerator(KeyStroke.getKeyStroke(acceleratorText));
} catch (MissingResourceException e) {
}
// Register an action listener and command for the item.
if (listener != null) {
item.addActionListener(listener);
item.setActionCommand(itemnames[i]);
}
// Add the item to the menu.
menu.add(item);
}
// Return the automatically created localized menu.
return menu;
}
/** A simple test program for the above code */
public static void main(String[] args) {
// Get the locale: default, or specified on command-line
Locale locale;
if (args.length == 2)
locale = new Locale(args[0], args[1]);
else
locale = Locale.getDefault();
// Get the resource bundle for that Locale. This will throw an
// (unchecked) MissingResourceException if no bundle is found.
ResourceBundle bundle = ResourceBundle.getBundle(
"com.davidflanagan.examples.i18n.Menus", locale);
// Create a simple GUI window to display the menu with
final JFrame f = new JFrame("SimpleMenu: " + // Window title
locale.getDisplayName(Locale.getDefault()));
JMenuBar menubar = new JMenuBar(); // Create a menubar.
f.setJMenuBar(menubar); // Add menubar to window
// Define an action listener for that our menu will use.
ActionListener listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
String s = e.getActionCommand();
Component c = f.getContentPane();
if (s.equals("red"))
c.setBackground(Color.red);
else if (s.equals("green"))
c.setBackground(Color.green);
else if (s.equals("blue"))
c.setBackground(Color.blue);
}
};
// Now create a menu using our convenience routine with the resource
// bundle and action listener we've created
JMenu menu = SimpleMenu.create(bundle, "colors", new String[] { "red",
"green", "blue" }, listener);
// Finally add the menu to the GUI, and pop it up
menubar.add(menu); // Add the menu to the menubar
f.setSize(300, 150); // Set the window size.
f.setVisible(true); // Pop the window up.
}
}
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