LocaleSwitcher.java

package test.common;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Locale;

import javax.swing.JComboBox;
import javax.swing.SwingUtilities;

public class LocaleSwitcher {
	static class LocaleInfo {
		Locale locale;

		String displayName;

		public LocaleInfo(Locale locale, String displayName) {
			this.locale = locale;
			this.displayName = displayName;
		}

		@Override
		public String toString() {
			return displayName;
		}
	}

	public interface LocaleCallback {
		public void onLocaleSelected(Locale selected);
	}

	public static JComboBox getLocaleSwitcher(final LocaleCallback callback) {
		Object[] locales = new Object[] {
				new LocaleInfo(new Locale("en", "US"), "English"),
				new LocaleInfo(new Locale("iw", "IL"), "Hebrew") };
		final JComboBox result = new JComboBox(locales);
		result.setSelectedIndex(0);
		result.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				SwingUtilities.invokeLater(new Runnable() {
					@Override
					public void run() {
						LocaleInfo selected = (LocaleInfo) result
								.getSelectedItem();
						callback.onLocaleSelected(selected.locale);
					}
				});
			}
		});
		return result;
	}
}