/*
* 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: AFPImageHandlerRawCCITTFax.java 1195952 2011-11-01 12:20:21Z phancock $ */
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;
}
}