1 /* 2 * Copyright (c) 2001, 2017, 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 4420342 4421831 27 * @summary Checks that IIOWriteProgressListener methods are called in proper 28 * sequence for the JPEG and PNG writers 29 */ 30 31 import java.awt.image.BufferedImage; 32 import java.io.File; 33 import java.io.IOException; 34 import java.util.Iterator; 35 import javax.imageio.ImageIO; 36 import javax.imageio.ImageWriter; 37 import javax.imageio.event.IIOWriteProgressListener; 38 import javax.imageio.stream.ImageOutputStream; 39 40 public class WriteProgressListenerTest implements IIOWriteProgressListener { 41 42 final static int UNINITIALIZED = 0; 43 final static int IMAGE_STARTED = 1; 44 final static int IMAGE_COMPLETE = 2; 45 46 int state = UNINITIALIZED; 47 float prevPercentageDone = 0.0F; 48 File tempFile = null; 49 50 public WriteProgressListenerTest(String format) throws IOException { 51 ImageWriter writer = null; 52 Iterator witer = ImageIO.getImageWritersByFormatName(format); 53 if (!witer.hasNext()) { 54 error("No writer for format " + format + "!"); 55 } 56 writer = (ImageWriter)witer.next(); 57 58 System.out.println("Got writer " + writer); 59 writer.addIIOWriteProgressListener(this); 60 61 this.tempFile = File.createTempFile("imageio", ".tmp"); 62 tempFile.deleteOnExit(); 63 ImageOutputStream stream = ImageIO.createImageOutputStream(tempFile); 64 writer.setOutput(stream); 65 66 BufferedImage im = 67 new BufferedImage(100, 100, BufferedImage.TYPE_3BYTE_BGR); 68 69 this.state = UNINITIALIZED; 70 71 writer.write(im); 72 73 if (this.state == UNINITIALIZED) { 74 error("imageStarted never called!"); 75 } 76 if (this.state != IMAGE_COMPLETE) { 77 error("imageComplete not called!"); 78 } 79 80 print("Passed!"); 81 } 82 83 private void error(String s) { 84 if (tempFile != null) { 85 tempFile.delete(); 86 } 87 throw new RuntimeException(s); 88 } 89 90 private void print(String s) { 91 System.out.println(s); 92 } 93 94 public void sequenceStarted(ImageWriter source) { 95 error("Obsolete method sequenceStarted was called!"); 96 } 97 98 public void sequenceComplete(ImageWriter source) { 99 error("Obsolete method sequenceComplete was called!"); 100 } 101 102 public void imageStarted(ImageWriter source, int imageIndex) { 103 print("imageStarted: imageIndex = " + imageIndex); 104 105 if (state != UNINITIALIZED) { 106 error("imageStarted not called first!"); 107 } 108 state = IMAGE_STARTED; 109 prevPercentageDone = 0.0F; 110 } 111 112 public void imageProgress(ImageWriter source, 113 float percentageDone) { 114 print("imageProgress: percentageDone = " + percentageDone); 115 116 if (state != IMAGE_STARTED) { 117 error("imageProgress called without prior imageStarted!"); 118 } 119 if (percentageDone < prevPercentageDone) { 120 error("percentageDone did not increase!"); 121 } 122 prevPercentageDone = percentageDone; 123 } 124 125 public void imageComplete(ImageWriter source) { 126 print("imageComplete"); 127 128 if (state != IMAGE_STARTED) { 129 error("imageComplete called without imageStarted!"); 130 } 131 if (prevPercentageDone == 0.0F) { 132 error("percentageDone was never updated!"); 133 } 134 state = IMAGE_COMPLETE; 135 } 136 137 public void thumbnailStarted(ImageWriter source, 138 int imageIndex, int thumbnailIndex) { 139 } 140 141 public void thumbnailProgress(ImageWriter source, float percentageDone) { 142 } 143 144 public void thumbnailComplete(ImageWriter source) { 145 } 146 147 public void writeAborted(ImageWriter source) { 148 } 149 150 public static void main(String[] args) throws IOException { 151 new WriteProgressListenerTest("jpeg"); 152 new WriteProgressListenerTest("png"); 153 } 154 }