/*
* 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: AbstractAFPImageHandlerRawStream.java 1195952 2011-11-01 12:20:21Z phancock $ */
package org.apache.fop.render.afp;
import java.awt.Rectangle;
import java.io.IOException;
import java.io.InputStream;
import org.apache.commons.io.IOUtils;
import org.apache.xmlgraphics.image.loader.Image;
import org.apache.xmlgraphics.image.loader.ImageSize;
import org.apache.xmlgraphics.image.loader.impl.ImageRawStream;
import org.apache.fop.afp.AFPDataObjectInfo;
import org.apache.fop.afp.AFPObjectAreaInfo;
import org.apache.fop.afp.AFPPaintingState;
import org.apache.fop.afp.AFPResourceInfo;
import org.apache.fop.afp.AFPResourceManager;
import org.apache.fop.afp.modca.ResourceObject;
import org.apache.fop.render.ImageHandler;
import org.apache.fop.render.RenderingContext;
/**
* A base abstract AFP raw stream image handler
*/
public abstract class AbstractAFPImageHandlerRawStream extends AFPImageHandler
implements ImageHandler {
/**
* Sets additional parameters on the image object info being built. By default, this
* method does nothing but it can be overridden to provide additional functionality.
* @param imageObjectInfo the image object info being built
* @param image the image being processed
*/
protected void setAdditionalParameters(AFPDataObjectInfo imageObjectInfo,
ImageRawStream image) {
//nop
}
private void updateDataObjectInfo(AFPDataObjectInfo dataObjectInfo,
ImageRawStream rawStream, AFPResourceManager resourceManager) throws IOException {
dataObjectInfo.setMimeType(rawStream.getFlavor().getMimeType());
AFPResourceInfo resourceInfo = dataObjectInfo.getResourceInfo();
if (!resourceInfo.levelChanged()) {
resourceInfo.setLevel(resourceManager.getResourceLevelDefaults()
.getDefaultResourceLevel(ResourceObject.TYPE_IMAGE));
}
InputStream inputStream = rawStream.createInputStream();
try {
dataObjectInfo.setData(IOUtils.toByteArray(inputStream));
} finally {
IOUtils.closeQuietly(inputStream);
}
int dataHeight = rawStream.getSize().getHeightPx();
dataObjectInfo.setDataHeight(dataHeight);
int dataWidth = rawStream.getSize().getWidthPx();
dataObjectInfo.setDataWidth(dataWidth);
ImageSize imageSize = rawStream.getSize();
dataObjectInfo.setDataHeightRes((int) (imageSize.getDpiHorizontal() * 10));
dataObjectInfo.setDataWidthRes((int) (imageSize.getDpiVertical() * 10));
}
/** {@inheritDoc} */
public void handleImage(RenderingContext context, Image image, Rectangle pos)
throws IOException {
AFPRenderingContext afpContext = (AFPRenderingContext)context;
AFPDataObjectInfo dataObjectInfo = createDataObjectInfo();
// set resource information
setResourceInformation(dataObjectInfo,
image.getInfo().getOriginalURI(),
afpContext.getForeignAttributes());
// Positioning
dataObjectInfo.setObjectAreaInfo(createObjectAreaInfo(afpContext.getPaintingState(), pos));
// set object area info
//AFPObjectAreaInfo objectAreaInfo = dataObjectInfo.getObjectAreaInfo();
AFPPaintingState paintingState = afpContext.getPaintingState();
int resolution = paintingState.getResolution();
AFPObjectAreaInfo objectAreaInfo = dataObjectInfo.getObjectAreaInfo();
objectAreaInfo.setResolution(resolution);
// Image content
ImageRawStream imageStream = (ImageRawStream)image;
updateDataObjectInfo(dataObjectInfo, imageStream, afpContext.getResourceManager());
setAdditionalParameters(dataObjectInfo, imageStream);
// Create image
afpContext.getResourceManager().createObject(dataObjectInfo);
}
}