test/javax/swing/JLayer/6824395/bug6824395.java

/*
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 * 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.
 *
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 * questions.
 */

 /*
 * @test
 * @summary Checks that JLayer inside JViewport works is correctly laid out
 * @author Alexander Potochkin
 * @run main bug6824395
 */


import sun.awt.SunToolkit;

import javax.swing.*;
import javax.swing.plaf.LayerUI;
import java.awt.*;

public class bug6824395 {

    static JScrollPane scrollPane;

    public static void main(String[] args) throws Exception {
        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
        SwingUtilities.invokeAndWait(new Runnable() {
            public void run() {
                JFrame frame = new JFrame("testing");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

                JEditorPane editorPane = new JEditorPane();
                String str = "hello\n";
                for(int i = 0; i<5; i++) {
                    str += str;
                }

                editorPane.setText(str);

                JLayer<JEditorPane> editorPaneLayer = new JLayer<JEditorPane>(editorPane);
                LayerUI<JComponent> layerUI = new LayerUI<JComponent>();
                editorPaneLayer.setUI(layerUI);

                scrollPane = new JScrollPane(editorPaneLayer);

                scrollPane.setPreferredSize(new Dimension(200, 250));
                frame.add(scrollPane);

                frame.setSize(200, 200);
                frame.pack();
                frame.setVisible(true);
            }
        });
        toolkit.realSync();
        SwingUtilities.invokeAndWait(new Runnable() {
            public void run() {
                if (scrollPane.getViewportBorderBounds().width != scrollPane.getViewport().getView().getWidth()) {
                    throw new RuntimeException("Wrong component's width!");
                }
            }
        });
    }
}