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 * @bug 4697612 6244705 27 * @author Peter Zhelezniakov 28 * @library ../../regtesthelpers 29 * @build Util 30 * @run main bug4697612 31 */ 32 import java.io.*; 33 import java.awt.*; 34 import java.awt.event.*; 35 import javax.swing.*; 36 37 import javax.swing.text.BadLocationException; 38 39 public class bug4697612 { 40 41 static final int FRAME_WIDTH = 300; 42 static final int FRAME_HEIGHT = 300; 43 static final int FONT_HEIGHT = 16; 44 private static volatile int frameHeight; 45 private static volatile int fontHeight; 46 private static JFrame frame; 47 private static JTextArea text; 48 private static JScrollPane scroller; 49 main(String[] args)50 public static void main(String[] args) throws Throwable { 51 Robot robot = new Robot(); 52 robot.setAutoDelay(100); 53 54 SwingUtilities.invokeAndWait(new Runnable() { 55 56 @Override 57 public void run() { 58 createAndShowGUI(); 59 } 60 }); 61 62 robot.waitForIdle(); 63 64 SwingUtilities.invokeAndWait(new Runnable() { 65 66 @Override 67 public void run() { 68 text.requestFocus(); 69 } 70 }); 71 72 robot.waitForIdle(); 73 74 // 4697612: pressing PgDn + PgUp should not alter caret position 75 Util.hitKeys(robot, KeyEvent.VK_HOME); 76 Util.hitKeys(robot, KeyEvent.VK_PAGE_DOWN); 77 78 79 int pos0 = getTextCaretPosition(); 80 int caretHeight = getTextCaretHeight(); 81 fontHeight = FONT_HEIGHT; 82 83 // iterate two times, for different (even and odd) font height 84 for (int i = 0; i < 2; i++) { 85 86 SwingUtilities.invokeAndWait(new Runnable() { 87 88 public void run() { 89 text.setFont(text.getFont().deriveFont(fontHeight)); 90 } 91 }); 92 93 frameHeight = FRAME_HEIGHT; 94 95 for (int j = 0; j < caretHeight; j++) { 96 SwingUtilities.invokeAndWait(new Runnable() { 97 98 public void run() { 99 frame.setSize(FRAME_WIDTH, frameHeight); 100 } 101 }); 102 103 robot.waitForIdle(); 104 105 Util.hitKeys(robot, KeyEvent.VK_PAGE_DOWN); 106 Util.hitKeys(robot, KeyEvent.VK_PAGE_UP); 107 robot.waitForIdle(); 108 109 int pos = getTextCaretPosition(); 110 if (pos0 != pos) { 111 throw new RuntimeException("Failed 4697612: PgDn & PgUp keys scroll by different amounts"); 112 } 113 frameHeight++; 114 } 115 fontHeight++; 116 } 117 118 119 // 6244705: pressing PgDn at the very bottom should not scroll 120 LookAndFeel laf = UIManager.getLookAndFeel(); 121 if (laf.getID().equals("Aqua")) { 122 Util.hitKeys(robot, KeyEvent.VK_END); 123 } else { 124 Util.hitKeys(robot, KeyEvent.VK_CONTROL, KeyEvent.VK_END); 125 } 126 127 robot.waitForIdle(); 128 129 pos0 = getScrollerViewPosition(); 130 Util.hitKeys(robot, KeyEvent.VK_PAGE_DOWN); 131 robot.waitForIdle(); 132 133 int pos = getScrollerViewPosition(); 134 135 if (pos0 != pos) { 136 throw new RuntimeException("Failed 6244705: PgDn at the bottom causes scrolling"); 137 } 138 } 139 getTextCaretPosition()140 private static int getTextCaretPosition() throws Exception { 141 final int[] result = new int[1]; 142 SwingUtilities.invokeAndWait(new Runnable() { 143 144 @Override 145 public void run() { 146 result[0] = text.getCaretPosition(); 147 } 148 }); 149 150 return result[0]; 151 } 152 getTextCaretHeight()153 private static int getTextCaretHeight() throws Exception { 154 final int[] result = new int[1]; 155 SwingUtilities.invokeAndWait(new Runnable() { 156 157 @Override 158 public void run() { 159 try { 160 int pos0 = text.getCaretPosition(); 161 Rectangle dotBounds = text.modelToView(pos0); 162 result[0] = dotBounds.height; 163 } catch (BadLocationException ex) { 164 throw new RuntimeException(ex); 165 } 166 } 167 }); 168 169 return result[0]; 170 } 171 getScrollerViewPosition()172 private static int getScrollerViewPosition() throws Exception { 173 final int[] result = new int[1]; 174 SwingUtilities.invokeAndWait(new Runnable() { 175 176 @Override 177 public void run() { 178 result[0] = scroller.getViewport().getViewPosition().y; 179 } 180 }); 181 182 return result[0]; 183 } 184 createAndShowGUI()185 private static void createAndShowGUI() { 186 frame = new JFrame(); 187 frame.setSize(FRAME_WIDTH, FRAME_HEIGHT); 188 frame.setPreferredSize(new Dimension(FRAME_WIDTH, FRAME_HEIGHT)); 189 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 190 191 text = new JTextArea(); 192 try { 193 InputStream is = 194 bug4697612.class.getResourceAsStream("bug4697612.txt"); 195 text.read(new InputStreamReader(is), null); 196 } catch (IOException e) { 197 throw new Error(e); 198 } 199 200 scroller = new JScrollPane(text); 201 202 frame.getContentPane().add(scroller); 203 204 frame.pack(); 205 frame.setVisible(true); 206 } 207 } 208