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 * Development and Distribution License("CDDL") (collectively, the
 * "License"). You may not use this file except in compliance with the
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 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the GPL Version 2 section of the License file that
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package org.netbeans.lib.profiler.ui.components;

import java.awt.Component;
import java.awt.event.ItemEvent;
import javax.swing.ComboBoxModel;
import javax.swing.DefaultComboBoxModel;
import javax.swing.DefaultListCellRenderer;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JSeparator;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;

 * JComboBox which supports JSeparator inside its popup menu.
 * @author Jiri Sedlacek
00061 public class JExtendedComboBox extends JComboBox {
    //~ Inner Classes ------------------------------------------------------------------------------------------------------------

    private class ExtendedComboListRenderer extends DefaultListCellRenderer {
        //~ Methods --------------------------------------------------------------------------------------------------------------

        public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected,
                                                      boolean cellHasFocus) {
            if ((value != null) && value instanceof JSeparator) {
                return (JSeparator) value;
            } else {
                return super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);

    //~ Instance fields ----------------------------------------------------------------------------------------------------------

    private DefaultComboBoxModel model = new DefaultComboBoxModel();
    private boolean closingWithSeparator = false;
    private int lastSelectedIndex = 0;

    //~ Constructors -------------------------------------------------------------------------------------------------------------

    public JExtendedComboBox() {
        setRenderer(new ExtendedComboListRenderer());

    //~ Methods ------------------------------------------------------------------------------------------------------------------

    public void setModel(ComboBoxModel aModel) {
        if (!(aModel instanceof DefaultComboBoxModel)) {
            throw new RuntimeException("Only DefaultComboBoxModel is supported for this component"); //NOI18N

        model = (DefaultComboBoxModel) aModel;

    public void firePopupMenuWillBecomeInvisible() {
        if (getSelectedItem() instanceof JSeparator) {
            closingWithSeparator = true;


    protected void fireItemStateChanged(ItemEvent e) {
        switch (e.getStateChange()) {
            case ItemEvent.SELECTED:

                if (e.getItem() instanceof JSeparator) {
                    SwingUtilities.invokeLater(new Runnable() {
                            public void run() {


            case ItemEvent.DESELECTED:

                if (!(e.getItem() instanceof JSeparator)) {
                    lastSelectedIndex = model.getIndexOf(e.getItem());



    private void selectNextItem() {
        int currentSelectedIndex = getSelectedIndex();

        if (closingWithSeparator) {
            closingWithSeparator = false;
        } else if (currentSelectedIndex > lastSelectedIndex) {
            setSelectedIndex(currentSelectedIndex + 1);
        } else {
            setSelectedIndex(currentSelectedIndex - 1);

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