| /* |
| |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with |
| the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| |
| */ |
| package org.apache.batik.svggen; |
| |
| import java.awt.image.BufferedImage; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| import org.apache.batik.ext.awt.image.spi.ImageWriter; |
| import org.apache.batik.ext.awt.image.spi.ImageWriterParams; |
| import org.apache.batik.ext.awt.image.spi.ImageWriterRegistry; |
| |
| /** |
| * GenericImageHandler which caches JPEG images. |
| * |
| * @author <a href="mailto:paul_evenblij@compuware.com">Paul Evenblij</a> |
| * @version $Id$ |
| */ |
| public class CachedImageHandlerJPEGEncoder extends DefaultCachedImageHandler { |
| public static final String CACHED_JPEG_PREFIX = "jpegImage"; |
| public static final String CACHED_JPEG_SUFFIX = ".jpg"; |
| |
| protected String refPrefix = ""; |
| |
| /** |
| * @param imageDir directory where this handler should generate images. |
| * If null, an IllegalArgumentException is thrown. |
| * @param urlRoot root for the urls that point to images created by this |
| * image handler. If null, then the url corresponding to imageDir |
| * is used. |
| */ |
| public CachedImageHandlerJPEGEncoder(String imageDir, String urlRoot) |
| throws SVGGraphics2DIOException { |
| refPrefix = urlRoot + "/"; |
| setImageCacher(new ImageCacher.External(imageDir, |
| CACHED_JPEG_PREFIX, |
| CACHED_JPEG_SUFFIX)); |
| } |
| |
| /** |
| * Uses JPEG encoding. |
| */ |
| public void encodeImage(BufferedImage buf, OutputStream os) |
| throws IOException { |
| ImageWriter writer = ImageWriterRegistry.getInstance() |
| .getWriterFor("image/jpeg"); |
| ImageWriterParams params = new ImageWriterParams(); |
| params.setJPEGQuality(1, false); |
| writer.writeImage(buf, os, params); |
| } |
| |
| public int getBufferedImageType(){ |
| return BufferedImage.TYPE_INT_RGB; |
| } |
| |
| public String getRefPrefix(){ |
| return refPrefix; |
| } |
| } |