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