/*

 * Copyright (c) 2010, Oracle and/or its affiliates. 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.

 *

 * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * @test

 * @bug 6199676

 * @summary Tests preview panel after L&F changing

 * @author Sergey Malenkov

 */

import java.awt.Component;

import java.awt.Container;

import javax.swing.JColorChooser;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.SwingUtilities;

import javax.swing.UIManager;

import javax.swing.UIManager.LookAndFeelInfo;

public class Test6199676 implements Runnable {

    public static void main(String[] args) {

        SwingUtilities.invokeLater(new Test6199676());

    }

    private static void exit(String error) {

        if (error != null) {

            System.err.println(error);

            System.exit(1);

        }

        else {

            System.exit(0);

        }

    }

    private static Component getPreview(Container container) {

        String name = "ColorChooser.previewPanelHolder";

        for (Component component : container.getComponents()) {

            if (!name.equals(component.getName())) {

                component = (component instanceof Container)

                        ? getPreview((Container) component)

                        : null;

            }

            if (component instanceof Container) {

                container = (Container) component;

                return 1 == container.getComponentCount()

                        ? container.getComponent(0)

                        : null;

            }

        }

        return null;

    }

    private static boolean isShowing(Component component) {

        return (component != null) && component.isShowing();

    }

    private int index;

    private boolean updated;

    private JColorChooser chooser;

    public synchronized void run() {

        if (this.chooser == null) {

            this.chooser = new JColorChooser();

            JFrame frame = new JFrame(getClass().getName());

            frame.add(this.chooser);

            frame.setVisible(true);

        }

        else if (this.updated) {

            if (isShowing(this.chooser.getPreviewPanel())) {

                exit("custom preview panel is showing");

            }

            exit(null);

        }

        else {

            Component component = this.chooser.getPreviewPanel();

            if (component == null) {

                component = getPreview(this.chooser);

            }

            if (!isShowing(component)) {

                exit("default preview panel is not showing");

            }

            this.updated = true;

            this.chooser.setPreviewPanel(new JPanel());

        }

        LookAndFeelInfo[] infos = UIManager.getInstalledLookAndFeels();

        LookAndFeelInfo info = infos[++this.index % infos.length];

        try {

            UIManager.setLookAndFeel(info.getClassName());

        }

        catch (Exception exception) {

            exit("could not change L&F");

        }

        SwingUtilities.updateComponentTreeUI(this.chooser);

        SwingUtilities.invokeLater(this);

    }

}