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  * @key headful
  27  * @bug 4708809
  28  * @summary JScrollBar functionality slightly different from native scrollbar
  29  * @author Andrey Pikalev
  30  * @run main bug4708809
  31  */
  32 import javax.swing.*;
  33 import java.awt.*;
  34 import java.awt.Point;
  35 import java.awt.event.*;
  36 import sun.awt.SunToolkit;
  37 
  38 public class bug4708809 {
  39 
  40     private static volatile boolean do_test = false;
  41     private static volatile boolean passed = true;
  42     private static JScrollPane spane;
  43     private static JScrollBar sbar;
  44 
  45     public static void main(String[] args) throws Exception {
  46         SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
  47         Robot robot = new Robot();
  48         robot.setAutoDelay(350);
  49 
  50         SwingUtilities.invokeAndWait(new Runnable() {
  51 
  52             public void run() {
  53                 createAndShowGUI();
  54             }
  55         });
  56 
  57         toolkit.realSync();
  58 
  59         SwingUtilities.invokeAndWait(new Runnable() {
  60 
  61             public void run() {
  62                 spane.requestFocus();
  63                 sbar.setValue(sbar.getMaximum());
  64             }
  65         });
  66 
  67         toolkit.realSync();
  68 
  69         Point point = getClickPoint(0.5, 0.5);
  70         robot.mouseMove(point.x, point.y);
  71         robot.mousePress(InputEvent.BUTTON1_MASK);
  72 
  73         toolkit.realSync();
  74 
  75         SwingUtilities.invokeAndWait(new Runnable() {
  76 
  77             public void run() {
  78                 final int oldValue = sbar.getValue();
  79                 sbar.addAdjustmentListener(new AdjustmentListener() {
  80 
  81                     public void adjustmentValueChanged(AdjustmentEvent e) {
  82                         if (e.getValue() >= oldValue) {
  83                             passed = false;
  84                         }
  85                         do_test = true;
  86                     }
  87                 });
  88 
  89             }
  90         });
  91 
  92         toolkit.realSync();
  93 
  94         point = getClickPoint(0.5, 0.2);
  95         robot.mouseMove(point.x, point.y);
  96         robot.mouseRelease(InputEvent.BUTTON1_MASK);
  97         toolkit.realSync();
  98 
  99         if (!do_test || !passed) {
 100             throw new Exception("The scrollbar moved with incorrect direction");
 101         }
 102 
 103     }
 104 
 105     private static Point getClickPoint(final double scaleX, final double scaleY) throws Exception {
 106         final Point[] result = new Point[1];
 107 
 108         SwingUtilities.invokeAndWait(new Runnable() {
 109 
 110             @Override
 111             public void run() {
 112                 Point p = sbar.getLocationOnScreen();
 113                 Rectangle rect = sbar.getBounds();
 114                 result[0] = new Point((int) (p.x + scaleX * rect.width),
 115                         (int) (p.y + scaleY * rect.height));
 116             }
 117         });
 118 
 119         return result[0];
 120 
 121     }
 122 
 123     private static void createAndShowGUI() {
 124         JFrame fr = new JFrame("Test");
 125 
 126         JLabel label = new JLabel("picture");
 127         label.setPreferredSize(new Dimension(500, 500));
 128         spane = new JScrollPane(label);
 129         fr.getContentPane().add(spane);
 130         sbar = spane.getVerticalScrollBar();
 131 
 132         fr.setSize(200, 200);
 133         fr.setVisible(true);
 134     }
 135 }