1 /*
2 * $RCSfile: PNMImageWriterSpi.java,v $
3 *
4 *
5 * Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * - Redistribution of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * - Redistribution in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * Neither the name of Sun Microsystems, Inc. or the names of
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * This software is provided "AS IS," without a warranty of any
24 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
25 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
26 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
27 * EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
28 * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
29 * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
30 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
31 * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
32 * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
33 * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
34 * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGES.
36 *
37 * You acknowledge that this software is not designed or intended for
38 * use in the design, construction, operation or maintenance of any
39 * nuclear facility.
40 *
41 * $Revision: 1.2 $
42 * $Date: 2006/03/31 19:43:40 $
43 * $State: Exp $
44 */
45 package com.github.jaiimageio.impl.plugins.pnm;
46
47 import java.awt.image.DataBuffer;
48 import java.util.Locale;
49
50 import javax.imageio.IIOException;
51 import javax.imageio.ImageTypeSpecifier;
52 import javax.imageio.ImageWriter;
53 import javax.imageio.spi.ImageWriterSpi;
54 import javax.imageio.spi.ServiceRegistry;
55
56 import com.github.jaiimageio.impl.common.PackageUtil;
57
58 public class PNMImageWriterSpi extends ImageWriterSpi {
59 private static String [] readerSpiNames =
60 {"com.github.jaiimageio.impl.plugins.pnm.PNMImageReaderSpi"};
61 private static String[] formatNames = {"pnm", "PNM"};
62 private static String[] entensions = {"pbm", "pgm", "ppm"};
63 private static String[] mimeType = {"image/x-portable-anymap",
64 "image/x-portable-bitmap",
65 "image/x-portable-graymap",
66 "image/x-portable-pixmap"};
67
68 private boolean registered = false;
69
70 public PNMImageWriterSpi() {
71 super(PackageUtil.getVendor(),
72 PackageUtil.getVersion(),
73 formatNames,
74 entensions,
75 mimeType,
76 "com.github.jaiimageio.impl.plugins.pnm.PNMImageWriter",
77 STANDARD_OUTPUT_TYPE,
78 readerSpiNames,
79 true,
80 null, null, null, null,
81 true,
82 null, null, null, null);
83 }
84
85 public String getDescription(Locale locale) {
86 String desc = PackageUtil.getSpecificationTitle() +
87 " PNM Image Writer";
88 return desc;
89 }
90
91 public void onRegistration(ServiceRegistry registry,
92 Class category) {
93 if (registered) {
94 return;
95 }
96
97 registered = true;
98 }
99
100 public boolean canEncodeImage(ImageTypeSpecifier type) {
101 int dataType = type.getSampleModel().getDataType();
102 if ((dataType < DataBuffer.TYPE_BYTE) ||
103 (dataType > DataBuffer.TYPE_INT))
104 return false;
105
106 int numBands = type.getSampleModel().getNumBands();
107 if (numBands != 1 && numBands != 3)
108 return false;
109
110 return true;
111 }
112
113 public ImageWriter createWriterInstance(Object extension)
114 throws IIOException {
115 return new PNMImageWriter(this);
116 }
117 }
118