1 /*

     2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

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

     4  *

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

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

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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

    13  * accompanied this code).

    14  *

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

    16  * 2 along with this work; if not, write to the Free Software Foundation,

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

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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

    21  * questions.

    22  */

    23 

    24 /* @test

    25    @bug 8134828

    26    @summary Scrollbar thumb disappears with Nimbus L&F

    27    @author Semyon Sadetsky

    28 */

    29 

    30 import javax.swing.*;

    31 import java.awt.*;

    32 

    33 public class ScrollBarThumbVisibleTest

    34 {

    35     private static JFrame frame;

    36     private static Point point;

    37     private static JScrollBar bar;

    38 

    39     public static void main(String[] args) throws Exception {

    40         for (UIManager.LookAndFeelInfo info : UIManager

    41                 .getInstalledLookAndFeels()) {

    42             if ("Nimbus".equals(info.getName())) {

    43                 try {

    44                     UIManager.setLookAndFeel(info.getClassName());

    45                 } catch (Exception ex) {

    46                 }

    47                 break;

    48             }

    49         }

    50         try {

    51             SwingUtilities.invokeAndWait(new Runnable() {

    52                 public void run() {

    53                     frame = new JFrame();

    54                     frame.setUndecorated(true);

    55                     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    56                     setup(frame);

    57                 }

    58             });

    59             final Robot robot = new Robot();

    60             robot.delay(200);

    61             robot.waitForIdle();

    62             SwingUtilities.invokeAndWait(new Runnable() {

    63                 @Override

    64                 public void run() {

    65                     point = bar.getLocationOnScreen();

    66                 }

    67             });

    68             Color color1 = robot.getPixelColor(point.x + 48, point.y + 55);

    69             Color color2 = robot.getPixelColor(point.x + 48, point.y + 125);

    70             System.out.println(color1);

    71             System.out.println(color2);

    72            if (color1.equals(color2)) {

    73                 throw new RuntimeException("Thump is not visible");

    74             }

    75         } finally {

    76             SwingUtilities.invokeAndWait(new Runnable() {

    77                 @Override

    78                 public void run() {

    79                     frame.dispose();

    80                 }

    81             });

    82         }

    83         System.out.println("ok");

    84     }

    85 

    86     static void setup(JFrame frame) {

    87         bar = new JScrollBar(Adjustable.VERTICAL, 500, 0, 0, 1000);

    88         frame.getContentPane().add(bar);

    89         frame.setSize(50, 250);

    90         frame.setLocation(100, 100);

    91         frame.setVisible(true);

    92     }

    93 }