/* The contents of this file are subject to the license and copyright terms
* detailed in the license directory at the root of the source tree (also
* available online at http://fedora-commons.org/license/).
*/
package org.fcrepo.swing.mdi;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyVetoException;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JInternalFrame;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.event.MenuEvent;
import javax.swing.event.MenuListener;
/**
* Menu component that handles the functionality expected of a standard
* "Windows" menu for MDI applications.
*
* <p>NOTICE: Portions created by Gerald Nunn are Copyright © Gerald Nunn,
* originally made available at
* http://www.javaworld.com/javaworld/jw-05-2001/jw-0525-mdi.html
*
* @author Gerald Nunn
* @author Chris Wilper
*/
public class WindowMenu
extends JMenu {
private static final long serialVersionUID = 1L;
private final MDIDesktopPane desktop;
private final JMenuItem cascade = new JMenuItem("Cascade");
private final JMenuItem tile = new JMenuItem("Tile");
private final JMenuItem minAll = new JMenuItem("Minimize All");
private final JMenuItem restoreAll = new JMenuItem("Restore All");
public WindowMenu(MDIDesktopPane desktop, String name) {
super(name);
this.desktop = desktop;
cascade.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
WindowMenu.this.desktop.cascadeFrames();
}
});
tile.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
WindowMenu.this.desktop.tileFrames();
}
});
minAll.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
WindowMenu.this.desktop.minimizeFrames();
}
});
restoreAll.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
WindowMenu.this.desktop.restoreFrames();
}
});
addMenuListener(new MenuListener() {
public void menuCanceled(MenuEvent e) {
}
public void menuDeselected(MenuEvent e) {
removeAll();
}
public void menuSelected(MenuEvent e) {
buildChildMenus();
}
});
}
/* Sets up the children menus depending on the current desktop state */
private void buildChildMenus() {
int i;
JInternalFrame[] array = desktop.getAllFrames();
add(cascade);
add(tile);
add(minAll);
add(restoreAll);
if (array.length > 0) {
addSeparator();
}
cascade.setEnabled(array.length > 0);
tile.setEnabled(array.length > 0);
minAll.setEnabled(desktop.deIconifiedFrames() > 0);
restoreAll.setEnabled(desktop.iconifiedFrames() > 0);
ChildMenuItem menu;
for (i = 0; i < array.length; i++) {
menu = new ChildMenuItem(array[i]);
menu.setState(i == 0);
menu.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
JInternalFrame frame =
((ChildMenuItem) ae.getSource()).getFrame();
frame.moveToFront();
try {
frame.setSelected(true);
} catch (PropertyVetoException e) {
e.printStackTrace();
}
}
});
menu.setIcon(array[i].getFrameIcon());
add(menu);
}
}
/*
* This JCheckBoxMenuItem descendant is used to track the child frame that
* corresponds to a give menu.
*/
class ChildMenuItem
extends JCheckBoxMenuItem {
private static final long serialVersionUID = 1L;
private final JInternalFrame frame;
public ChildMenuItem(JInternalFrame frame) {
super(frame.getTitle());
this.frame = frame;
}
public JInternalFrame getFrame() {
return frame;
}
}
}