/* * Copyright (c) 2007, 2022, 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 * @bug 6263951 * @summary Text should be B&W, grayscale, and LCD. * @requires (os.family != "mac") * @run main/manual TextAAHintsTest */ import java.awt.AWTException; import java.awt.BorderLayout; import java.awt.Button; import java.awt.Color; import java.awt.Component; import java.awt.Dialog; import java.awt.Dimension; import java.awt.EventQueue; import java.awt.Frame; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.ImageCapabilities; import java.awt.Panel; import java.awt.RenderingHints; import java.awt.TextArea; import java.awt.image.BufferedImage; import java.awt.image.VolatileImage; import java.lang.reflect.InvocationTargetException; import java.util.concurrent.CountDownLatch; import java.util.concurrent.TimeUnit; public class TextAAHintsTest extends Component { private static final String black = "This text should be solid black"; private static final String gray = "This text should be gray scale anti-aliased"; private static final String lcd = "This text should be LCD sub-pixel text (coloured)."; private static final CountDownLatch countDownLatch = new CountDownLatch(1); private static volatile String failureReason; private static volatile boolean testPassed = false; private static Frame frame; public void paint(Graphics g) { Graphics2D g2d = (Graphics2D)g.create(); g2d.setColor(Color.white); g2d.fillRect(0,0,getSize().width, getSize().height); drawText(g.create(0, 0, 500, 100)); bufferedImageText(g.create(0, 100, 500, 100)); volatileImageText(g.create(0, 200, 500, 100)); } private void drawText(Graphics g) { Graphics2D g2d = (Graphics2D)g; g2d.setColor(Color.white); g2d.fillRect(0,0,500,100); g2d.setColor(Color.black); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF); g2d.drawString(black, 10, 20); g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_DEFAULT); g2d.drawString(gray, 10, 35); g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON); g2d.drawString(gray, 10, 50); /* For visual comparison, render grayscale with graphics AA off */ g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF); g2d.drawString(gray, 10, 65); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB); g2d.drawString(lcd, 10, 80); } public void bufferedImageText(Graphics g) { BufferedImage bi = new BufferedImage(500, 100, BufferedImage.TYPE_INT_RGB); Graphics2D g2d = bi.createGraphics(); drawText(g2d); g.drawImage(bi, 0, 0, null); } public VolatileImage getVolatileImage(int w, int h) { VolatileImage image; try { image = createVolatileImage(w, h, new ImageCapabilities(true)); } catch (AWTException e) { System.out.println(e); System.out.println("Try creating non-accelerated VI instead."); try { image = createVolatileImage(w, h, new ImageCapabilities(false)); } catch (AWTException e1) { System.out.println("Skipping volatile image test."); image = null; } } return image; } public void volatileImageText(Graphics g) { VolatileImage image = getVolatileImage(500, 100); if (image == null) { return; } boolean painted = false; while (!painted) { int status = image.validate(getGraphicsConfiguration()); if (status == VolatileImage.IMAGE_INCOMPATIBLE) { image = getVolatileImage(500, 100); if (image == null) { return; } } drawText(image.createGraphics()); g.drawImage(image, 0, 0, null); painted = !image.contentsLost(); System.out.println("painted = " + painted); } } public Dimension getPreferredSize() { return new Dimension(500,300); } public static void createTestUI() { frame = new Frame("Composite and Text Test"); TextAAHintsTest textAAHintsTestObject = new TextAAHintsTest(); frame.add(textAAHintsTestObject, BorderLayout.NORTH); String instructions = "Note: Texts are rendered with different TEXT_ANTIALIASING &\n" + " VALUE_TEXT_ANTIALIAS. Text should be B&W, grayscale, and LCD.\n" + " Note: The results may be visually the same.\n" + "1. Verify that first set of text are rendered correctly.\n" + "2. Second set of text are created using BufferedImage of the first text.\n" + "3. Third set of text are created using VolatileImage of the first text."; TextArea instructionTextArea = new TextArea(instructions, 8, 50); instructionTextArea.setEditable(false); frame.add(instructionTextArea, BorderLayout.CENTER); Panel controlPanel = new Panel(); Button passButton = new Button("Pass"); passButton.addActionListener(e -> { testPassed = true; countDownLatch.countDown(); frame.dispose(); }); Button failButton = new Button("Fail"); failButton.addActionListener(e -> { getFailureReason(); testPassed = false; countDownLatch.countDown(); frame.dispose(); }); controlPanel.add(passButton); controlPanel.add(failButton); frame.add(controlPanel, BorderLayout.SOUTH); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } public static void getFailureReason() { // Show dialog to read why the testcase was failed and append the // testcase failure reason to the output final Dialog dialog = new Dialog(frame, "TestCase" + " failure reason", true); TextArea textArea = new TextArea("", 5, 60, TextArea.SCROLLBARS_BOTH); dialog.add(textArea, BorderLayout.CENTER); Button okButton = new Button("OK"); okButton.addActionListener(e1 -> { failureReason = textArea.getText(); dialog.dispose(); }); Panel ctlPanel = new Panel(); ctlPanel.add(okButton); dialog.add(ctlPanel, BorderLayout.SOUTH); dialog.setLocationRelativeTo(null); dialog.pack(); dialog.setVisible(true); } public static void main(String[] args) throws InterruptedException, InvocationTargetException { EventQueue.invokeAndWait(TextAAHintsTest::createTestUI); if (!countDownLatch.await(2, TimeUnit.MINUTES)) { EventQueue.invokeAndWait(() -> { if (frame != null) { frame.dispose(); } }); throw new RuntimeException("Timeout : No action was taken on the test."); } if (!testPassed) { throw new RuntimeException("Test failed : Reason : " + failureReason); } } }