| /* ImageTranscoder.java -- Image metadata transcoder. |
| 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; |
| |
| import javax.imageio.metadata.IIOMetadata; |
| |
| /** |
| * An ImageTranscoder translates IIOMetadata objects provided by an |
| * ImageReader into corresponding IIOMetadata objects that can be |
| * understood by a given ImageWriter. |
| * |
| * Usually an ImageWriter will implement ImageTranscoder directly in |
| * which case the conversion methods will return IIOMetadata objects |
| * appropriate for this ImageWriter. |
| * |
| * Independent transcoders are also allowed; they must have knowledge |
| * of both the source IIOMetadata provided by the reader and the |
| * returned IIOMetadata expected by the writer. |
| * |
| * @author Michael Koch (konqueror@gmx.de) |
| */ |
| public interface ImageTranscoder |
| { |
| /** |
| * Converts IIOMetadata from an input reader format, returning an |
| * IIOMetadata suitable for use by an image writer. |
| * |
| * The ImageTypeSpecifier specifies the destination image type. |
| * |
| * An optional ImageWriteParam argument is available in case the |
| * image writing parameters affect the metadata conversion. |
| * |
| * @param inData the metadata coming from an image reader |
| * @param imageType the output image type of the writer |
| * @param param the image writing parameters or null |
| * |
| * @return the converted metadata that should be used by the image |
| * writer, or null if this ImageTranscoder has no knowledge of the |
| * input metadata |
| * |
| * @exception IllegalArgumentException if either inData or imageType |
| * is null |
| */ |
| IIOMetadata convertImageMetadata(IIOMetadata inData, |
| ImageTypeSpecifier imageType, |
| ImageWriteParam param); |
| |
| /** |
| * Converts IIOMetadata from an input stream format, returning an |
| * IIOMetadata suitable for use by an image writer. |
| * |
| * An optional ImageWriteParam argument is available in case the |
| * image writing parameters affect the metadata conversion. |
| * |
| * @param inData the metadata coming from an input image stream |
| * @param param the image writing parameters or null |
| * |
| * @return the converted metadata that should be used by the image |
| * writer, or null if this ImageTranscoder has no knowledge of the |
| * input metadata |
| * |
| * @exception IllegalArgumentException if inData is null |
| */ |
| IIOMetadata convertStreamMetadata(IIOMetadata inData, |
| ImageWriteParam param); |
| } |