| /* |
| * 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; |
| } |
| |
| } |