/* * Copyright (c) 2012, 2017, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @key headful * @bug 4697612 6244705 7190581 * @run main bug4697612 */ import java.awt.Rectangle; import java.awt.Dimension; import java.io.InputStream; import java.awt.Robot; import java.awt.event.KeyEvent; import java.io.IOException; import java.io.InputStreamReader; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.LookAndFeel; import javax.swing.SwingUtilities; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; import javax.swing.text.BadLocationException; public class bug4697612 { static final int FRAME_WIDTH = 300; static final int FRAME_HEIGHT = 300; static final int FONT_HEIGHT = 16; private static volatile int frameHeight; private static volatile int fontHeight; private static JFrame frame; private static JTextArea text; private static JScrollPane scroller; private static Robot robot; private static void setLookAndFeel(final UIManager.LookAndFeelInfo laf) { try { UIManager.setLookAndFeel(laf.getClassName()); } catch (ClassNotFoundException | InstantiationException | UnsupportedLookAndFeelException | IllegalAccessException e) { throw new RuntimeException(e); } } public static void main(String[] args) throws Throwable { robot = new Robot(); robot.setAutoDelay(100); for (UIManager.LookAndFeelInfo laf : UIManager.getInstalledLookAndFeels()) { try { SwingUtilities.invokeAndWait(() -> setLookAndFeel(laf)); System.out.println("Test for LookAndFeel " + laf.getClassName()); new bug4697612(); System.out.println("Test passed for LookAndFeel " + laf.getClassName()); } catch (Exception e) { throw new RuntimeException(e); } } } public bug4697612() throws Exception { try { SwingUtilities.invokeAndWait(new Runnable() { @Override public void run() { createAndShowGUI(); } }); robot.waitForIdle(); SwingUtilities.invokeAndWait(new Runnable() { @Override public void run() { text.requestFocus(); } }); robot.waitForIdle(); // 4697612: pressing PgDn + PgUp should not alter caret position robot.keyPress(KeyEvent.VK_HOME); robot.keyRelease(KeyEvent.VK_HOME); robot.keyPress(KeyEvent.VK_PAGE_DOWN); robot.keyRelease(KeyEvent.VK_PAGE_DOWN); robot.waitForIdle(); int pos0 = getTextCaretPosition(); int caretHeight = getTextCaretHeight(); fontHeight = FONT_HEIGHT; // iterate two times, for different (even and odd) font height for (int i = 0; i < 2; i++) { SwingUtilities.invokeAndWait(new Runnable() { public void run() { text.setFont(text.getFont().deriveFont(fontHeight)); } }); frameHeight = FRAME_HEIGHT; for (int j = 0; j < caretHeight; j++) { SwingUtilities.invokeAndWait(new Runnable() { public void run() { frame.setSize(FRAME_WIDTH, frameHeight); } }); robot.waitForIdle(); robot.keyPress(KeyEvent.VK_PAGE_DOWN); robot.keyRelease(KeyEvent.VK_PAGE_DOWN); robot.keyPress(KeyEvent.VK_PAGE_UP); robot.keyRelease(KeyEvent.VK_PAGE_UP); robot.waitForIdle(); int pos = getTextCaretPosition(); if (pos0 != pos) { throw new RuntimeException("Failed 4697612: PgDn & PgUp keys scroll by different amounts"); } frameHeight++; } fontHeight++; } // 6244705: pressing PgDn at the very bottom should not scroll LookAndFeel laf = UIManager.getLookAndFeel(); if (laf.getID().equals("Aqua")) { robot.keyPress(KeyEvent.VK_END); robot.keyRelease(KeyEvent.VK_END); } else { robot.keyPress(KeyEvent.VK_CONTROL); robot.keyPress(KeyEvent.VK_END); robot.keyRelease(KeyEvent.VK_END); robot.keyRelease(KeyEvent.VK_CONTROL); } robot.waitForIdle(); robot.delay(1000); pos0 = getScrollerViewPosition(); robot.keyPress(KeyEvent.VK_PAGE_DOWN); robot.keyRelease(KeyEvent.VK_PAGE_DOWN); robot.waitForIdle(); int pos = getScrollerViewPosition(); if (pos0 != pos) { System.out.println("pos0 " + pos0 + " pos " + pos); throw new RuntimeException("Failed 6244705: PgDn at the bottom causes scrolling"); } } finally { SwingUtilities.invokeAndWait(() -> frame.dispose()); } } private static int getTextCaretPosition() throws Exception { final int[] result = new int[1]; SwingUtilities.invokeAndWait(new Runnable() { @Override public void run() { result[0] = text.getCaretPosition(); } }); return result[0]; } private static int getTextCaretHeight() throws Exception { final int[] result = new int[1]; SwingUtilities.invokeAndWait(new Runnable() { @Override public void run() { try { int pos0 = text.getCaretPosition(); Rectangle dotBounds = text.modelToView(pos0); result[0] = dotBounds.height; } catch (BadLocationException ex) { throw new RuntimeException(ex); } } }); return result[0]; } private static int getScrollerViewPosition() throws Exception { final int[] result = new int[1]; SwingUtilities.invokeAndWait(new Runnable() { @Override public void run() { result[0] = scroller.getViewport().getViewPosition().y; } }); return result[0]; } private static void createAndShowGUI() { frame = new JFrame(); frame.setSize(FRAME_WIDTH, FRAME_HEIGHT); frame.setPreferredSize(new Dimension(FRAME_WIDTH, FRAME_HEIGHT)); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); text = new JTextArea(); try { InputStream is = bug4697612.class.getResourceAsStream("bug4697612.txt"); text.read(new InputStreamReader(is), null); } catch (IOException e) { throw new Error(e); } scroller = new JScrollPane(text); frame.getContentPane().add(scroller); frame.pack(); frame.setVisible(true); } }