135 lines
4.7 KiB
Java
135 lines
4.7 KiB
Java
/* ImageWriterSpi.java --
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Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.imageio.spi;
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import java.awt.image.RenderedImage;
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import java.io.IOException;
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import javax.imageio.ImageTypeSpecifier;
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import javax.imageio.ImageWriter;
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import javax.imageio.stream.ImageOutputStream;
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/**
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* @author Michael Koch (konqueror@gmx.de)
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*/
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public abstract class ImageWriterSpi extends ImageReaderWriterSpi
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{
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public static final Class[] STANDARD_OUTPUT_TYPE =
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{ ImageOutputStream.class };
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protected Class[] outputTypes;
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protected String[] readerSpiNames;
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protected ImageWriterSpi()
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{
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// Do nothing here.
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}
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public ImageWriterSpi(String vendorName, String version, String[] names,
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String[] suffixes, String[] MIMETypes,
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String writerClassName, Class[] outputTypes,
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String[] readerSpiNames,
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boolean supportsStandardStreamMetadataFormat,
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String nativeStreamMetadataFormatName,
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String nativeStreamMetadataFormatClassName,
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String[] extraStreamMetadataFormatNames,
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String[] extraStreamMetadataFormatClassNames,
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boolean supportsStandardImageMetadataFormat,
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String nativeImageMetadataFormatName,
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String nativeImageMetadataFormatClassName,
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String[] extraImageMetadataFormatNames,
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String[] extraImageMetadataFormatClassNames)
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{
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super(vendorName, version, names, suffixes, MIMETypes, writerClassName,
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supportsStandardStreamMetadataFormat, nativeStreamMetadataFormatName,
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nativeStreamMetadataFormatClassName, extraStreamMetadataFormatNames,
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extraStreamMetadataFormatClassNames, supportsStandardImageMetadataFormat,
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nativeImageMetadataFormatName, nativeImageMetadataFormatClassName,
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extraImageMetadataFormatNames, extraImageMetadataFormatClassNames);
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if (writerClassName == null)
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throw new IllegalArgumentException("writerClassName is null");
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if (outputTypes == null
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|| outputTypes.length == 0)
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throw new IllegalArgumentException("outputTypes may not be null or empty");
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this.outputTypes = outputTypes;
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this.readerSpiNames = readerSpiNames;
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}
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public abstract boolean canEncodeImage(ImageTypeSpecifier type);
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public boolean canEncodeImage(RenderedImage image)
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{
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return canEncodeImage (new ImageTypeSpecifier(image));
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}
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public ImageWriter createWriterInstance()
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throws IOException
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{
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return createWriterInstance(null);
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}
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public abstract ImageWriter createWriterInstance(Object extension)
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throws IOException;
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public String[] getImageReaderSpiNames()
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{
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return readerSpiNames;
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}
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public Class[] getOutputTypes()
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{
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return outputTypes;
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}
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public boolean isFormatLossless()
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{
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return true;
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}
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public boolean isOwnWriter(ImageWriter writer)
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{
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if (writer == null)
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throw new IllegalArgumentException("writer may not be null");
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return pluginClassName.equals(writer.getClass().getName());
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}
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}
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