| /* BMPImageWriterSpi.java -- |
| Copyright (C) 2006 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 gnu.javax.imageio.bmp; |
| |
| import java.util.Locale; |
| |
| import javax.imageio.ImageTypeSpecifier; |
| import javax.imageio.ImageWriter; |
| import javax.imageio.spi.ImageWriterSpi; |
| |
| public class BMPImageWriterSpi |
| extends ImageWriterSpi |
| { |
| |
| static final String vendorName = "GNU"; |
| static final String version = "0.1"; |
| static final String writerClassName = "gnu.javax.imageio.bmp.BMPImageWriter"; |
| static final String[] names = { "Microsoft Windows BMP" }; |
| static final String[] suffixes = { ".bmp", ".bm" }; |
| static final String[] MIMETypes = { "image/bmp", "image/x-windows-bmp" }; |
| static final String[] readerSpiNames = { "gnu.javax.imageio.bmp.BMPImageReaderSpi" }; |
| |
| static final boolean supportsStandardStreamMetadataFormat = false; |
| static final String nativeStreamMetadataFormatName = null; |
| static final String nativeStreamMetadataFormatClassName = null; |
| static final String[] extraStreamMetadataFormatNames = null; |
| static final String[] extraStreamMetadataFormatClassNames = null; |
| static final boolean supportsStandardImageMetadataFormat = false; |
| static final String nativeImageMetadataFormatName = null; |
| static final String nativeImageMetadataFormatClassName = null; |
| static final String[] extraImageMetadataFormatNames = null; |
| static final String[] extraImageMetadataFormatClassNames = null; |
| |
| private BMPImageWriter writerInstance; |
| |
| public BMPImageWriterSpi() |
| { |
| super(vendorName, version, names, suffixes, MIMETypes, writerClassName, |
| STANDARD_OUTPUT_TYPE, readerSpiNames, supportsStandardStreamMetadataFormat, |
| nativeStreamMetadataFormatName, nativeStreamMetadataFormatClassName, |
| extraStreamMetadataFormatNames, extraStreamMetadataFormatClassNames, |
| supportsStandardImageMetadataFormat, nativeImageMetadataFormatName, |
| nativeImageMetadataFormatClassName, extraImageMetadataFormatNames, |
| extraImageMetadataFormatClassNames); |
| } |
| |
| /** |
| * Returns true if the image can be encoded. |
| * |
| * @param type - the image type specifier. |
| * @return true if image can be encoded, otherwise false. |
| */ |
| public boolean canEncodeImage(ImageTypeSpecifier type) |
| { |
| if (type == null) |
| return false; |
| |
| BMPInfoHeader ih = writerInstance.infoHeader; |
| if (ih != null) |
| { |
| int compressionType = ih.getCompression(); |
| int bytes = type.getColorModel().getPixelSize(); |
| if ((compressionType == BMPInfoHeader.BI_RLE4 && (bytes != 4 || bytes != 8)) |
| || (compressionType == BMPInfoHeader.BI_RGB && ((bytes != 1 |
| || bytes != 4 |
| || bytes != 8 |
| || bytes != 16 |
| || bytes != 24 |
| || bytes != 32)))) |
| return false; |
| } |
| return true; |
| } |
| |
| /** |
| * Creates an instance of ImageWriter using the given extension. |
| * |
| * @param extension - the provider that is constructing this image writer, or |
| * null |
| */ |
| public ImageWriter createWriterInstance(Object extension) |
| { |
| if (extension != null && extension instanceof ImageWriterSpi) |
| writerInstance = new BMPImageWriter((ImageWriterSpi) extension); |
| else |
| writerInstance = new BMPImageWriter(this); |
| return writerInstance; |
| } |
| |
| /** |
| * Gets the instance of ImageWriter, if already created. |
| */ |
| public BMPImageWriter getWriterInstance() |
| { |
| if (writerInstance != null) |
| return writerInstance; |
| return (BMPImageWriter) createWriterInstance(null); |
| } |
| |
| /** |
| * Returns a short description of this service provider that can be |
| * presented to a human user. |
| * |
| * @param locale - the locale for which the description string should |
| * be localized. |
| */ |
| public String getDescription(Locale locale) |
| { |
| return "Microsoft BMP v3"; |
| } |
| |
| } |