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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
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  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).
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  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
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  23 
  24 /* @test
  25    @bug 6542335
  26    @summary different behavior on knob of scroll bar between 1.4.2 and 5.0
  27    @author  Alexander Potochkin
  28    @run main bug6542335
  29 */
  30 
  31 import sun.awt.SunToolkit;
  32 
  33 import javax.swing.*;
  34 import javax.swing.plaf.basic.BasicScrollBarUI;
  35 import java.awt.*;
  36 import java.awt.event.InputEvent;
  37 
  38 public class bug6542335 {
  39     private static JScrollBar sb;
  40     private static MyScrollBarUI ui;
  41 
  42     public static void main(String[] args) throws Exception {
  43         final Robot robot = new Robot();
  44         robot.setAutoDelay(10);
  45 
  46         SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
  47 
  48         final Rectangle[] thumbBounds = new Rectangle[1];
  49 
  50         SwingUtilities.invokeAndWait(new Runnable() {
  51             public void run() {
  52                 final JFrame frame = new JFrame("bug6542335");
  53                 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  54 
  55                 sb = new JScrollBar(0, 0, 1, 0, 1);
  56 
  57                 ui = new MyScrollBarUI();
  58                 sb.setUI(ui);
  59 
  60                 sb.setPreferredSize(new Dimension(200, 17));
  61                 DefaultBoundedRangeModel rangeModel = new DefaultBoundedRangeModel();
  62                 rangeModel.setMaximum(100);
  63                 rangeModel.setMinimum(0);
  64                 rangeModel.setExtent(50);
  65                 rangeModel.setValue(50);
  66 
  67                 sb.setModel(rangeModel);
  68                 frame.add(sb, BorderLayout.NORTH);
  69 
  70                 frame.setSize(200, 100);
  71                 frame.setVisible(true);
  72             }
  73         });
  74 
  75         toolkit.realSync();
  76 
  77         SwingUtilities.invokeAndWait(new Runnable() {
  78             public void run() {
  79                 thumbBounds[0] = new Rectangle(ui.getThumbBounds());
  80 
  81                 Point l = sb.getLocationOnScreen();
  82 
  83                 robot.mouseMove(l.x + (int) (0.75 * sb.getWidth()), l.y + sb.getHeight() / 2);
  84                 robot.mousePress(InputEvent.BUTTON1_MASK);
  85                 robot.mouseRelease(InputEvent.BUTTON1_MASK);
  86             }
  87         });
  88 
  89         toolkit.realSync();
  90 
  91         SwingUtilities.invokeAndWait(new Runnable() {
  92             public void run() {
  93                 Rectangle newThumbBounds = ui.getThumbBounds();
  94 
  95                 if (!thumbBounds[0].equals(newThumbBounds)) {
  96                     throw new RuntimeException("Test failed.\nOld bounds: " + thumbBounds[0] +
  97                     "\nNew bounds: " + newThumbBounds);
  98                 }
  99             }
 100         });
 101     }
 102 
 103     static class MyScrollBarUI extends BasicScrollBarUI {
 104         public Rectangle getThumbBounds() {
 105             return super.getThumbBounds();
 106         }
 107     }
 108 }