001/*
002 * $RCSfile: PCXImageReaderSpi.java,v $
003 *
004 * 
005 * Copyright (c) 2007 Sun Microsystems, Inc. All  Rights Reserved.
006 * 
007 * Redistribution and use in source and binary forms, with or without
008 * modification, are permitted provided that the following conditions
009 * are met: 
010 * 
011 * - Redistribution of source code must retain the above copyright 
012 *   notice, this  list of conditions and the following disclaimer.
013 * 
014 * - Redistribution in binary form must reproduce the above copyright
015 *   notice, this list of conditions and the following disclaimer in 
016 *   the documentation and/or other materials provided with the
017 *   distribution.
018 * 
019 * Neither the name of Sun Microsystems, Inc. or the names of 
020 * contributors may be used to endorse or promote products derived 
021 * from this software without specific prior written permission.
022 * 
023 * This software is provided "AS IS," without a warranty of any 
024 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND 
025 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, 
026 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
027 * EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL 
028 * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF 
029 * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
030 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR 
031 * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
032 * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
033 * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
034 * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
035 * POSSIBILITY OF SUCH DAMAGES. 
036 * 
037 * You acknowledge that this software is not designed or intended for 
038 * use in the design, construction, operation or maintenance of any 
039 * nuclear facility. 
040 *
041 * $Revision: 1.1 $
042 * $Date: 2007/09/05 00:21:08 $
043 * $State: Exp $
044 */
045package com.github.jaiimageio.impl.plugins.pcx;
046
047import java.io.IOException;
048import java.util.Locale;
049
050import javax.imageio.IIOException;
051import javax.imageio.ImageReader;
052import javax.imageio.spi.ImageReaderSpi;
053import javax.imageio.spi.ServiceRegistry;
054import javax.imageio.stream.ImageInputStream;
055
056import com.github.jaiimageio.impl.common.PackageUtil;
057
058public class PCXImageReaderSpi extends ImageReaderSpi {
059
060    private static String [] writerSpiNames =
061        {"com.github.jaiimageio.impl.plugins.pcx.PCXImageWriterSpi"};
062    private static String[] formatNames = {"pcx", "PCX"};
063    private static String[] extensions = {"pcx"};
064    private static String[] mimeTypes = {
065        "image/pcx", "image/x-pcx", "image/x-windows-pcx", "image/x-pc-paintbrush"
066    };
067    private boolean registered = false;
068
069    public PCXImageReaderSpi() {
070        super(PackageUtil.getVendor(),
071              PackageUtil.getVersion(),
072              formatNames,
073              extensions,
074              mimeTypes,
075              "com.github.jaiimageio.impl.plugins.pcx.PCXImageReader",
076              STANDARD_INPUT_TYPE,
077              writerSpiNames,
078              false,
079              null, null, null, null,
080              true,
081              null,
082              null,
083              null, null);
084    }
085
086    public void onRegistration(ServiceRegistry registry, Class category) {
087        if (registered) {
088            return;
089        }
090        registered = true;
091    }
092
093    public String getDescription(Locale locale) {
094        String desc = PackageUtil.getSpecificationTitle() + 
095            " PCX Image Reader";  
096        return desc;
097    }
098
099    public boolean canDecodeInput(Object source) throws IOException {
100        if (!(source instanceof ImageInputStream)) {
101            return false;
102        }
103
104        ImageInputStream stream = (ImageInputStream)source;
105        stream.mark();
106        byte b = stream.readByte();
107        stream.reset();
108
109        return (b==0x0A);
110    }
111
112    public ImageReader createReaderInstance(Object extension)
113        throws IIOException {
114        return new PCXImageReader(this);
115    }
116}
117