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- /*
- * 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 = 32759;
-
- 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 inputstream for the the object container data
- *
- * @param inputStream the inputstream for the object container data
- */
- public void setData(byte[] data) {
- this.data = data;
- }
- }
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