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 }