1 /*
   2  * Copyright (c) 2012, 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 7107099
  28    @summary JScrollBar does not show up even if there are enough lebgth of textstring in textField
  29    @author Pavel Porvatov
  30 */
  31 
  32 import javax.swing.*;
  33 import java.awt.*;
  34 
  35 public class bug7107099 {
  36     private static JFrame frame;
  37     private static JTextArea textarea;
  38     private static JScrollPane scrollPane;
  39 
  40     private static int value;
  41     private static int min;
  42     private static int max;
  43     private static int extent;
  44 
  45     public static void main(String[] args) throws Exception {
  46 
  47         java.awt.Robot robot = new java.awt.Robot();
  48 
  49         SwingUtilities.invokeAndWait(new Runnable() {
  50             @Override
  51             public void run() {
  52                 textarea = new JTextArea("before###1###\nbefore###2###\nbefore###3###\nbefore###4###\nbefore###5###\n");
  53 
  54                 scrollPane = new JScrollPane(textarea);
  55                 scrollPane.setPreferredSize(new Dimension(100, 50));
  56 
  57                 frame = new JFrame();
  58                 frame.setLayout(new BorderLayout());
  59                 frame.setSize(200, 200);
  60                 frame.add(scrollPane, BorderLayout.SOUTH);
  61                 frame.setVisible(true);
  62             }
  63         });
  64 
  65         robot.waitForIdle();
  66 
  67         SwingUtilities.invokeAndWait(new Runnable() {
  68             @Override
  69             public void run() {
  70                 BoundedRangeModel model = scrollPane.getVerticalScrollBar().getModel();
  71 
  72                 value = model.getValue();
  73                 min = model.getMinimum();
  74                 max = model.getMaximum();
  75                 extent = model.getExtent();
  76 
  77                 // Do tricky manipulation for testing purpose
  78                 textarea.setText(null);
  79                 scrollPane.setViewportView(textarea);
  80                 textarea.setText("after###1###\nafter###1###\nafter###1###\nafter###1###\nafter###1###\n");
  81                 textarea.setCaretPosition(0);
  82             }
  83         });
  84 
  85         robot.waitForIdle();
  86 
  87         SwingUtilities.invokeAndWait(new Runnable() {
  88             @Override
  89             public void run() {
  90                 BoundedRangeModel model = scrollPane.getVerticalScrollBar().getModel();
  91 
  92                 if (value != model.getValue() ||
  93                         min != model.getMinimum() ||
  94                         max != model.getMaximum() ||
  95                         extent != model.getExtent()) {
  96                     throw new RuntimeException("Test bug7107099 failed");
  97                 }
  98 
  99                 System.out.println("Test bug7107099 passed");
 100 
 101                 frame.dispose();
 102             }
 103         });
 104     }
 105 }