1 /*
   2  * Copyright (c) 2010, 2011, 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 /*
  25  * @test
  26  * @key headful
  27  * @bug 6542335
  28  * @summary different behavior on knob of scroll bar between 1.4.2 and 5.0
  29  * @author  Alexander Potochkin
  30  * @run main bug6542335
  31  */
  32 
  33 import sun.awt.SunToolkit;
  34 
  35 import javax.swing.*;
  36 import javax.swing.plaf.basic.BasicScrollBarUI;
  37 import java.awt.*;
  38 import java.awt.event.InputEvent;
  39 
  40 public class bug6542335 {
  41     private static JScrollBar sb;
  42     private static MyScrollBarUI ui;
  43 
  44     public static void main(String[] args) throws Exception {
  45         final Robot robot = new Robot();
  46         robot.setAutoDelay(10);
  47 
  48         SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
  49 
  50         final Rectangle[] thumbBounds = new Rectangle[1];
  51 
  52         SwingUtilities.invokeAndWait(new Runnable() {
  53             public void run() {
  54                 final JFrame frame = new JFrame("bug6542335");
  55                 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  56 
  57                 sb = new JScrollBar(0, 0, 1, 0, 1);
  58 
  59                 ui = new MyScrollBarUI();
  60                 sb.setUI(ui);
  61 
  62                 sb.setPreferredSize(new Dimension(200, 17));
  63                 DefaultBoundedRangeModel rangeModel = new DefaultBoundedRangeModel();
  64                 rangeModel.setMaximum(100);
  65                 rangeModel.setMinimum(0);
  66                 rangeModel.setExtent(50);
  67                 rangeModel.setValue(50);
  68 
  69                 sb.setModel(rangeModel);
  70                 frame.add(sb, BorderLayout.NORTH);
  71 
  72                 frame.setSize(200, 100);
  73                 frame.setVisible(true);
  74             }
  75         });
  76 
  77         toolkit.realSync();
  78 
  79         SwingUtilities.invokeAndWait(new Runnable() {
  80             public void run() {
  81                 thumbBounds[0] = new Rectangle(ui.getThumbBounds());
  82 
  83                 Point l = sb.getLocationOnScreen();
  84 
  85                 robot.mouseMove(l.x + (int) (0.75 * sb.getWidth()), l.y + sb.getHeight() / 2);
  86                 robot.mousePress(InputEvent.BUTTON1_MASK);
  87                 robot.mouseRelease(InputEvent.BUTTON1_MASK);
  88             }
  89         });
  90 
  91         toolkit.realSync();
  92 
  93         SwingUtilities.invokeAndWait(new Runnable() {
  94             public void run() {
  95                 Rectangle newThumbBounds = ui.getThumbBounds();
  96 
  97                 if (!thumbBounds[0].equals(newThumbBounds)) {
  98                     throw new RuntimeException("Test failed.\nOld bounds: " + thumbBounds[0] +
  99                     "\nNew bounds: " + newThumbBounds);
 100                 }
 101             }
 102         });
 103     }
 104 
 105     static class MyScrollBarUI extends BasicScrollBarUI {
 106         public Rectangle getThumbBounds() {
 107             return super.getThumbBounds();
 108         }
 109     }
 110 }