Java JPopupMenu optimizeSeparators(JPopupMenu menu)

Description

optimize Separators

License

Open Source License

Declaration

public static void optimizeSeparators(JPopupMenu menu) 

Method Source Code

//package com.java2s;
/*//from w w w.  j  a  v  a  2s. c  o m
 * Copyright (C) 2004 NNL Technology AB
 * Visit www.infonode.net for information about InfoNode(R) 
 * products and how to contact NNL Technology AB.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, 
 * MA 02111-1307, USA.
 */

import javax.swing.JMenu;
import javax.swing.JPopupMenu;

public class Main {
    public static void optimizeSeparators(JPopupMenu menu) {
        boolean lastSeparator = true;

        for (int i = 0; i < menu.getComponentCount();) {
            if (menu.getComponent(i).isVisible() && menu.getComponent(i) instanceof JMenu)
                optimizeSeparators(((JMenu) menu.getComponent(i)).getPopupMenu());

            boolean separator = menu.getComponent(i) instanceof JPopupMenu.Separator;

            if (lastSeparator && separator)
                menu.remove(i);
            else
                i++;

            lastSeparator = separator;
        }

        if (menu.getComponentCount() > 0
                && menu.getComponent(menu.getComponentCount() - 1) instanceof JPopupMenu.Separator)
            menu.remove(menu.getComponentCount() - 1);
    }
}

Related

1. insertSeparatorIfNeeded(JPopupMenu popupMenu, int position)
2. installPopupMenuColorAndFonts(final JComponent contentPane)
3. isPopupMenuSeparator(Component component)
4. makePopupMenu(JPopupMenu menu, List menuItems)
5. maybeShowPopup(MouseEvent e, JPopupMenu menu, JComponent parent)
6. positionPopup(Component component, JPopupMenu jpm, int xCoord, int yCoord)
7. positionPopupMenu(final JPopupMenu popupMenu, final MouseEvent event, final Rectangle rectangle, final int dividerlocation)
8. refreshPopup(JPopupMenu popup)
9. removeConsecutiveSeparators(JPopupMenu popupMenu)