1 /* 2 * Copyright (c) 2015, 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 import java.awt.AWTException; 25 import java.awt.Button; 26 import java.awt.Component; 27 import java.awt.EventQueue; 28 import java.awt.Frame; 29 30 import javax.swing.JButton; 31 32 /** 33 * @test 34 * @bug 6815345 35 */ 36 public final class CreateImage { 37 38 public static void main(final String[] args) throws Exception { 39 EventQueue.invokeAndWait(CreateImage::test); 40 } 41 42 private static void test() { 43 final Frame frame = new Frame(); 44 final Button button1 = new Button(); 45 final Button button2 = new Button(); 46 final JButton jbutton1 = new JButton(); 47 final JButton jbutton2 = new JButton(); 48 49 try { 50 // all components are not displayable 51 checkCreateImage(frame, true); 52 checkCreateImage(button1, true); 53 checkCreateImage(button2, true); 54 checkCreateImage(jbutton1, true); 55 checkCreateImage(jbutton2, true); 56 57 // some components added to the non-displayable frame 58 frame.add(button1); 59 frame.add(jbutton1); 60 checkCreateImage(button1, true); 61 checkCreateImage(jbutton1, true); 62 63 frame.pack(); 64 65 // tests previously added components when the frame is displayable 66 checkCreateImage(frame, false); 67 checkCreateImage(button1, false); 68 checkCreateImage(jbutton1, false); 69 70 // some components added to the displayable frame 71 frame.add(button2); 72 frame.add(jbutton2); 73 checkCreateImage(button2, false); 74 checkCreateImage(jbutton2, false); 75 76 } finally { 77 frame.dispose(); 78 } 79 // tests all components after the frame became non-displayable again 80 checkCreateImage(frame, true); 81 checkCreateImage(button1, true); 82 checkCreateImage(button2, true); 83 checkCreateImage(jbutton1, true); 84 checkCreateImage(jbutton2, true); 85 } 86 87 private static void checkCreateImage(final Component comp, 88 final boolean isNull) { 89 if ((comp.createImage(10, 10) != null) == isNull) { 90 throw new RuntimeException("Image is wrong"); 91 } 92 if ((comp.createVolatileImage(10, 10) != null) == isNull) { 93 throw new RuntimeException("Image is wrong"); 94 } 95 try { 96 if ((comp.createVolatileImage(10, 10, null) != null) == isNull) { 97 throw new RuntimeException("Image is wrong"); 98 } 99 } catch (final AWTException ignored) { 100 // this check is not applicable 101 } 102 } 103 }