1 /* 2 * Copyright (c) 2011, 2013, 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 * @summary <rdar://problem/3597830> graphics.drawImage() throws exception drawn with gradient background 27 * @summary com.apple.junit.java.graphics.DrawImage 28 * @library ../regtesthelpers 29 * @build VisibilityValidator 30 * @run junit DrawImageOverGradient 31 */ 32 33 import test.java.awt.regtesthelpers.VisibilityValidator; 34 import junit.framework.*; 35 import javax.swing.*; 36 import java.awt.*; 37 import java.awt.image.BufferedImage; 38 39 public class DrawImageOverGradient extends TestCase { 40 41 protected JFrame frame; 42 43 protected void setUp() { 44 frame = new JFrame( "TestCase" ); 45 46 JComponent content = (JComponent) frame.getContentPane(); 47 content.setLayout(new FlowLayout()); 48 content.add(new ImagePanel()); 49 } 50 51 public void testDrawImage() throws Exception { 52 frame.setLocation( 100, 100 ); 53 frame.pack(); 54 VisibilityValidator.setVisibleAndConfirm(frame); 55 Thread.sleep(50); //make sure the frame shows up on the screen 56 } 57 58 public void tearDown() { 59 frame.dispose(); 60 } 61 62 // Boilerplate below so it can be run from the command line 63 public static Test suite() { 64 return new TestSuite(DrawImageOverGradient.class); 65 } 66 67 public static void main (String[] args) throws RuntimeException { 68 TestResult tr = junit.textui.TestRunner.run(suite()); 69 if ((tr.errorCount() != 0) || (tr.failureCount() != 0)) { 70 throw new RuntimeException("### FAILED: unexpected JUnit errors or failures."); 71 } 72 } 73 74 //the panel with the image on it. 75 private static class ImagePanel extends JComponent { 76 BufferedImage image; 77 78 public ImagePanel() { 79 80 // exceptions used to be thrown when I tried to draw the image created below, 81 // but only when I tried to draw it atop a GRADIENT: 82 image = new BufferedImage(50, 50, BufferedImage.TYPE_INT_ARGB_PRE); 83 Graphics2D g = image.createGraphics(); 84 g.setColor(Color.orange); 85 g.drawLine(1, 1, image.getWidth()-1, image.getHeight()-1); 86 g.drawLine(image.getWidth()-1, 1, 1, image.getHeight()-1); 87 88 setOpaque(true); 89 setVisible(true); 90 setPreferredSize(new Dimension(80, 80)); 91 } 92 93 protected void paintComponent(Graphics g) { 94 //the gradient 95 Graphics2D g2 = (Graphics2D)g; 96 GradientPaint gradient = new GradientPaint(0, 0, Color.white, getWidth()/3, getHeight()/3, Color.green, true); //true is for cyclic 97 g2.setPaint(gradient); 98 g2.fillRect(0, 0, getWidth(), getHeight()); 99 100 //draw the image and pray for no exceptions. 101 g.drawImage(image, 0, 0 , null); 102 103 } 104 } 105 }