/*

 * Copyright 1998-2007 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package com.sun.hotspot.igv.coordinator.actions;

import com.sun.hotspot.igv.coordinator.OutlineTopComponent;

import com.sun.hotspot.igv.data.services.GroupOrganizer;

import java.awt.Component;

import java.awt.Image;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.ItemEvent;

import java.awt.event.ItemListener;

import java.awt.image.BufferedImage;

import java.util.ArrayList;

import java.util.Collection;

import java.util.Collections;

import java.util.Comparator;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import javax.swing.Action;

import javax.swing.ButtonGroup;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JCheckBoxMenuItem;

import javax.swing.JMenuItem;

import javax.swing.JPopupMenu;

import javax.swing.event.PopupMenuEvent;

import javax.swing.event.PopupMenuListener;

import org.openide.awt.DropDownButtonFactory;

import org.openide.util.HelpCtx;

import org.openide.util.Lookup;

import org.openide.util.Utilities;

import org.openide.util.actions.CallableSystemAction;

public class StructuredViewAction extends CallableSystemAction {

    private static JButton dropDownButton;

    private static ButtonGroup buttonGroup;

    private static JPopupMenu popup;

    private MyMenuItemListener menuItemListener;

    private Map<JMenuItem, GroupOrganizer> map;

    public StructuredViewAction() {

        putValue(Action.SHORT_DESCRIPTION, "Cluster nodes into blocks");

    }

    @Override

    public Component getToolbarPresenter() {

        Image iconImage = Utilities.loadImage("com/sun/hotspot/igv/coordinator/images/structure.gif");

        ImageIcon icon = new ImageIcon(iconImage);

        popup = new JPopupMenu();

        menuItemListener = new MyMenuItemListener();

        buttonGroup = new ButtonGroup();

        Collection<? extends GroupOrganizer> organizersCollection = Lookup.getDefault().lookupAll(GroupOrganizer.class);

        List<GroupOrganizer> organizers = new ArrayList<GroupOrganizer>(organizersCollection);

        Collections.sort(organizers, new Comparator<GroupOrganizer>() {

            public int compare(GroupOrganizer a, GroupOrganizer b) {

                return a.getName().compareTo(b.getName());

            }

        });

        map = new HashMap<JMenuItem, GroupOrganizer>();

        boolean first = true;

        for(GroupOrganizer organizer : organizers) {

            JCheckBoxMenuItem item = new JCheckBoxMenuItem(organizer.getName());

            map.put(item, organizer);

            item.addActionListener(menuItemListener);

            buttonGroup.add(item);

            popup.add(item);

            if(first) {

                item.setSelected(true);

                first = false;

            }

        }

        dropDownButton = DropDownButtonFactory.createDropDownButton(

                new ImageIcon(

                new BufferedImage(32, 32, BufferedImage.TYPE_BYTE_GRAY)),

                popup);

        dropDownButton.setIcon(icon);

        dropDownButton.setToolTipText("Insert Layer Registration");

        dropDownButton.addItemListener(new ItemListener() {

            public void itemStateChanged(ItemEvent e) {

                int state = e.getStateChange();

                if (state == ItemEvent.SELECTED) {

                    performAction();

                }

            }

        });

        dropDownButton.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {

                performAction();

            }

        });

        popup.addPopupMenuListener(new PopupMenuListener() {

            public void popupMenuCanceled(PopupMenuEvent e) {

                dropDownButton.setSelected(false);

            }

            public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {

                dropDownButton.setSelected(false);

            }

            public void popupMenuWillBecomeVisible(PopupMenuEvent e) {

                dropDownButton.setSelected(true);

            }

        });

        return dropDownButton;

    }

    private class MyMenuItemListener implements ActionListener {

        public void actionPerformed(ActionEvent ev) {

            JMenuItem item = (JMenuItem) ev.getSource();

            GroupOrganizer organizer = map.get(item);

            assert organizer != null : "Organizer must exist!";

            OutlineTopComponent.findInstance().setOrganizer(organizer);

        }

    }

    @Override

    public void performAction() {

        popup.show(dropDownButton, 0, dropDownButton.getHeight());

    }

    public String getName() {

        return "Structured View";

    }

    public HelpCtx getHelpCtx() {

        return HelpCtx.DEFAULT_HELP;

    }

    @Override

    protected boolean asynchronous() {

        return false;

    }

}