1 /* 2 * Copyright (c) 2014, 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 import java.awt.Dimension; 24 import java.awt.Graphics; 25 import java.awt.Graphics2D; 26 import java.awt.Image; 27 import java.awt.image.BufferedImage; 28 import javax.swing.JCheckBox; 29 import javax.swing.JComponent; 30 import javax.swing.SwingUtilities; 31 32 import jdk.test.lib.Platform; 33 34 /* @test 35 * @bug 8032667 36 * @summary [macosx] Components cannot be rendered in HiDPI to BufferedImage 37 * @library /test/lib 38 * @build jdk.test.lib.Platform 39 * @run main bug8032667_image_diff 40 */ 41 public class bug8032667_image_diff { 42 43 static final int IMAGE_WIDTH = 130; 44 static final int IMAGE_HEIGHT = 50; 45 46 public static void main(String[] args) throws Exception { 47 48 if (!Platform.isOSX()) { 49 return; 50 } 51 52 SwingUtilities.invokeAndWait(new Runnable() { 53 @Override 54 public void run() { 55 56 JCheckBox checkBox = new JCheckBox(); 57 checkBox.setSelected(true); 58 checkBox.setSize(new Dimension(IMAGE_WIDTH, IMAGE_HEIGHT)); 59 60 final BufferedImage image1 = getHiDPIImage(checkBox); 61 final BufferedImage image2 = getScaledImage(checkBox); 62 63 if(equal(image1, image2)){ 64 throw new RuntimeException("2x image equals to non smooth image"); 65 } 66 } 67 }); 68 } 69 70 static boolean equal(BufferedImage image1, BufferedImage image2) { 71 72 int w = image1.getWidth(); 73 int h = image1.getHeight(); 74 75 if (w != image2.getWidth() || h != image2.getHeight()) { 76 return false; 77 } 78 79 for (int i = 0; i < w; i++) { 80 for (int j = 0; j < h; j++) { 81 int color1 = image1.getRGB(i, j); 82 int color2 = image2.getRGB(i, j); 83 84 if (color1 != color2) { 85 return false; 86 } 87 } 88 } 89 return true; 90 } 91 92 static BufferedImage getHiDPIImage(JComponent component) { 93 return getImage(component, 2, IMAGE_WIDTH, IMAGE_HEIGHT); 94 } 95 96 static BufferedImage getScaledImage(JComponent component) { 97 Image image1x = getImage(component, 1, IMAGE_WIDTH, IMAGE_HEIGHT); 98 final BufferedImage image2x = new BufferedImage( 99 2 * IMAGE_WIDTH, 2 * IMAGE_HEIGHT, BufferedImage.TYPE_INT_ARGB); 100 final Graphics g = image2x.getGraphics(); 101 ((Graphics2D) g).scale(2, 2); 102 g.drawImage(image1x, 0, 0, null); 103 g.dispose(); 104 return image2x; 105 } 106 107 static BufferedImage getImage(JComponent component, int scale, int width, int height) { 108 final BufferedImage image = new BufferedImage( 109 scale * width, scale * height, BufferedImage.TYPE_INT_ARGB); 110 final Graphics g = image.getGraphics(); 111 ((Graphics2D) g).scale(scale, scale); 112 component.paint(g); 113 g.dispose(); 114 return image; 115 } 116 }