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 32import javax.swing.*; 33import java.awt.*; 34 35public 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} 106