1 /*
   2  * Copyright (c) 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  * @bug 4865918
  27  * @summary REGRESSION:JCK1.4a-runtime api/javax_swing/interactive/JScrollBarTests.html#JScrollBar
  28  * @author Andrey Pikalev
  29  * @run main bug4865918
  30  */
  31 
  32 import javax.swing.*;
  33 import java.awt.*;
  34 import java.awt.event.*;
  35 import java.util.*;
  36 
  37 public class bug4865918 {
  38 
  39     private static TestScrollBar sbar;
  40 
  41     public static void main(String[] argv) throws Exception {
  42 
  43         Robot robot = new Robot();
  44         SwingUtilities.invokeAndWait(new Runnable() {
  45 
  46             public void run() {
  47                 createAndShowGUI();
  48             }
  49         });
  50 
  51         robot.waitForIdle();
  52 
  53         SwingUtilities.invokeAndWait(new Runnable() {
  54 
  55             @Override
  56             public void run() {
  57                 sbar.pressMouse();
  58             }
  59         });
  60 
  61         robot.waitForIdle();
  62 
  63         int value = getValue();
  64 
  65         if (value != 9) {
  66             throw new Error("The scrollbar block increment is incorect");
  67         }
  68     }
  69 
  70     private static int getValue() throws Exception {
  71         final int[] result = new int[1];
  72 
  73         SwingUtilities.invokeAndWait(new Runnable() {
  74             @Override
  75             public void run() {
  76                 result[0] = sbar.getValue();
  77             }
  78         });
  79 
  80         return result[0];
  81     }
  82 
  83     private static void createAndShowGUI() {
  84         JFrame frame = new JFrame("bug4865918");
  85         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  86 
  87         sbar = new TestScrollBar(JScrollBar.HORIZONTAL, -1, 10, -100, 100);
  88         sbar.setPreferredSize(new Dimension(200, 20));
  89         sbar.setBlockIncrement(10);
  90 
  91         frame.getContentPane().add(sbar);
  92         frame.pack();
  93         frame.setVisible(true);
  94 
  95     }
  96 
  97     static class TestScrollBar extends JScrollBar {
  98 
  99         public TestScrollBar(int orientation, int value, int extent,
 100                 int min, int max) {
 101             super(orientation, value, extent, min, max);
 102 
 103         }
 104 
 105         public void pressMouse() {
 106             MouseEvent me = new MouseEvent(sbar,
 107                     MouseEvent.MOUSE_PRESSED,
 108                     (new Date()).getTime(),
 109                     MouseEvent.BUTTON1_MASK,
 110                     3 * getWidth() / 4, getHeight() / 2,
 111                     1, true);
 112             processMouseEvent(me);
 113         }
 114     }
 115 }