/* * 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. */ /* $Id$ */ package org.apache.fop.render.afp; import java.awt.Rectangle; import java.io.IOException; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.xmlgraphics.image.loader.Image; import org.apache.xmlgraphics.image.loader.ImageFlavor; import org.apache.xmlgraphics.image.loader.impl.ImageRawCCITTFax; import org.apache.xmlgraphics.image.loader.impl.ImageRawStream; import org.apache.xmlgraphics.util.MimeConstants; import org.apache.fop.afp.AFPDataObjectInfo; import org.apache.fop.afp.AFPImageObjectInfo; import org.apache.fop.render.RenderingContext; /** * AFPImageHandler implementation which handles CCITT encoded images (CCITT fax group 3/4). */ public class AFPImageHandlerRawCCITTFax extends AbstractAFPImageHandlerRawStream { private static final ImageFlavor[] FLAVORS = new ImageFlavor[] { ImageFlavor.RAW_CCITTFAX, }; /** logging instance */ private final Log log = LogFactory.getLog(AFPImageHandlerRawJPEG.class); /** {@inheritDoc} */ @Override protected void setAdditionalParameters(AFPDataObjectInfo dataObjectInfo, ImageRawStream image) { AFPImageObjectInfo imageObjectInfo = (AFPImageObjectInfo)dataObjectInfo; ImageRawCCITTFax ccitt = (ImageRawCCITTFax)image; int compression = ccitt.getCompression(); imageObjectInfo.setCompression(compression); imageObjectInfo.setBitsPerPixel(1); //CCITTFax flavor doesn't have TIFF associated but the AFP library listens to //that to identify CCITT encoded images. CCITT is not exclusive to TIFF. imageObjectInfo.setMimeType(MimeConstants.MIME_TIFF); } /** {@inheritDoc} */ @Override public void handleImage(RenderingContext context, Image image, Rectangle pos) throws IOException { log.debug("Embedding undecoded CCITT data as data container..."); super.handleImage(context, image, pos); } /** {@inheritDoc} */ @Override protected AFPDataObjectInfo createDataObjectInfo() { return new AFPImageObjectInfo(); } /** {@inheritDoc} */ public int getPriority() { return 400; } /** {@inheritDoc} */ public Class getSupportedImageClass() { return ImageRawCCITTFax.class; } /** {@inheritDoc} */ public ImageFlavor[] getSupportedImageFlavors() { return FLAVORS; } /** {@inheritDoc} */ public boolean isCompatible(RenderingContext targetContext, Image image) { if (targetContext instanceof AFPRenderingContext) { AFPRenderingContext afpContext = (AFPRenderingContext)targetContext; return (afpContext.getPaintingState().isNativeImagesSupported()) && (image == null || image instanceof ImageRawCCITTFax); } return false; } }