1 /* 2 * Copyright (c) 2020, 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 8212226 27 * @summary Check that base image gets selected during painting 28 * if other resolution variants are not ready 29 * @run main MultiResolutionImageSelectionTest 30 */ 31 32 import java.awt.Color; 33 import java.awt.Graphics; 34 import java.awt.Graphics2D; 35 import java.awt.Image; 36 import java.awt.image.AbstractMultiResolutionImage; 37 import java.awt.image.BufferedImage; 38 import java.awt.image.ImageObserver; 39 import java.awt.image.ImageProducer; 40 import java.awt.image.MultiResolutionImage; 41 import java.util.Arrays; 42 import java.util.List; 43 44 import static java.awt.image.BufferedImage.TYPE_INT_RGB; 45 46 public class MultiResolutionImageSelectionTest { 47 final static BufferedImage GOOD_IMAGE = new BufferedImage(200, 200, 48 TYPE_INT_RGB); 49 50 final static Image BAD_IMAGE= new Image() { 51 @Override 52 public int getWidth(ImageObserver observer) { 53 return -1; 54 } 55 56 @Override 57 public int getHeight(ImageObserver observer) { 58 return 1; 59 } 60 61 @Override 62 public ImageProducer getSource() { 63 return null; 64 } 65 66 @Override 67 public Graphics getGraphics() { 68 return null; 69 } 70 71 @Override 72 public Object getProperty(String name, ImageObserver observer) { 73 return null; 74 } 75 }; 76 77 public static void main(String[] args) { 78 Graphics g = GOOD_IMAGE.createGraphics(); 79 g.setColor(Color.RED); 80 g.fillRect(0, 0, GOOD_IMAGE.getWidth(), GOOD_IMAGE.getHeight()); 81 g.dispose(); 82 83 MultiResolutionImage mri = new AbstractMultiResolutionImage() { 84 @Override 85 protected Image getBaseImage() { 86 return GOOD_IMAGE; 87 } 88 89 @Override 90 public Image getResolutionVariant(double destImageWidth, double destImageHeight) { 91 if ((int)destImageHeight == 200) { 92 return GOOD_IMAGE; 93 } else { 94 return BAD_IMAGE; 95 } 96 } 97 98 @Override 99 public List<Image> getResolutionVariants() { 100 return Arrays.asList(BAD_IMAGE, GOOD_IMAGE, BAD_IMAGE); 101 } 102 }; 103 104 BufferedImage target = new BufferedImage(500, 500, TYPE_INT_RGB); 105 Graphics2D g2d = target.createGraphics(); 106 g2d.drawImage((Image) mri, 0, 0, 500, 500, null); 107 g2d.dispose(); 108 if (Color.RED.getRGB() != target.getRGB(1, 1)) { 109 throw new RuntimeException("Wrong resolution variant was used"); 110 } 111 } 112 }