| /* |
| * 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.afp.modca; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| import org.apache.fop.afp.AFPDataObjectInfo; |
| import org.apache.fop.afp.AFPObjectAreaInfo; |
| import org.apache.fop.afp.AFPResourceInfo; |
| import org.apache.fop.afp.AFPResourceLevel; |
| import org.apache.fop.afp.Factory; |
| import org.apache.fop.afp.modca.triplets.MappingOptionTriplet; |
| import org.apache.fop.afp.util.BinaryUtils; |
| |
| /** |
| * Object containers are MO:DCA objects that envelop and carry object data. |
| */ |
| public class ObjectContainer extends AbstractDataObject { |
| |
| /** the object container data maximum length */ |
| private static final int MAX_DATA_LEN = 8192; |
| |
| private byte[] data; |
| |
| /** |
| * Main constructor |
| * |
| * @param factory the object factory |
| * @param name the name of this object container |
| */ |
| public ObjectContainer(Factory factory, String name) { |
| super(factory, name); |
| } |
| |
| /** {@inheritDoc} */ |
| protected void writeStart(OutputStream os) throws IOException { |
| byte[] headerData = new byte[17]; |
| copySF(headerData, Type.BEGIN, Category.OBJECT_CONTAINER); |
| |
| // Set the total record length |
| int containerLen = headerData.length + getTripletDataLength() - 1; |
| byte[] len = BinaryUtils.convert(containerLen, 2); |
| headerData[1] = len[0]; // Length byte 1 |
| headerData[2] = len[1]; // Length byte 2 |
| |
| os.write(headerData); |
| } |
| |
| /** {@inheritDoc} */ |
| protected void writeContent(OutputStream os) throws IOException { |
| super.writeContent(os); // write triplets and OEG |
| |
| // write OCDs |
| byte[] dataHeader = new byte[9]; |
| copySF(dataHeader, SF_CLASS, Type.DATA, Category.OBJECT_CONTAINER); |
| final int lengthOffset = 1; |
| |
| if (data != null) { |
| writeChunksToStream(data, dataHeader, lengthOffset, MAX_DATA_LEN, os); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| protected void writeEnd(OutputStream os) throws IOException { |
| byte[] data = new byte[17]; |
| copySF(data, Type.END, Category.OBJECT_CONTAINER); |
| os.write(data); |
| } |
| |
| /** {@inheritDoc} */ |
| public void setViewport(AFPDataObjectInfo dataObjectInfo) { |
| AFPResourceInfo resourceInfo = dataObjectInfo.getResourceInfo(); |
| AFPResourceLevel resourceLevel = resourceInfo.getLevel(); |
| |
| // only need to set MCD and CDD when OC when is inlined (pre-2000 apps) |
| if (resourceLevel.isInline()) { |
| super.setViewport(dataObjectInfo); |
| |
| MapContainerData mapContainerData |
| = factory.createMapContainerData(MappingOptionTriplet.SCALE_TO_FIT); |
| getObjectEnvironmentGroup().setMapContainerData(mapContainerData); |
| |
| int dataWidth = dataObjectInfo.getDataWidth(); |
| int dataHeight = dataObjectInfo.getDataHeight(); |
| |
| AFPObjectAreaInfo objectAreaInfo = dataObjectInfo.getObjectAreaInfo(); |
| int widthRes = objectAreaInfo.getWidthRes(); |
| int heightRes = objectAreaInfo.getHeightRes(); |
| |
| ContainerDataDescriptor containerDataDescriptor |
| = factory.createContainerDataDescriptor( |
| dataWidth, dataHeight, widthRes, heightRes); |
| getObjectEnvironmentGroup().setDataDescriptor(containerDataDescriptor); |
| } |
| } |
| |
| /** |
| * Sets the data for the object container |
| * |
| * @param data a byte array |
| */ |
| public void setData(byte[] data) { |
| this.data = data; |
| } |
| } |