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