| /* |
| * 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.modca.triplets.DescriptorPositionTriplet; |
| import org.apache.fop.afp.modca.triplets.MeasurementUnitsTriplet; |
| import org.apache.fop.afp.modca.triplets.ObjectAreaSizeTriplet; |
| import org.apache.fop.afp.util.BinaryUtils; |
| |
| /** |
| * The Object Area Descriptor structured field specifies the size and attributes |
| * of an object area presentation space. |
| */ |
| public class ObjectAreaDescriptor extends AbstractDescriptor { |
| |
| /** |
| * Construct an object area descriptor for the specified object width |
| * and object height. |
| * |
| * @param width the object width. |
| * @param height the object height. |
| * @param widthRes the object width resolution. |
| * @param heightRes the object height resolution. |
| */ |
| public ObjectAreaDescriptor(int width, int height, int widthRes, int heightRes) { |
| super(width, height, widthRes, heightRes); |
| } |
| |
| private static final byte OBJECT_AREA_POSITION_ID = 0x01; |
| |
| /** {@inheritDoc} */ |
| public void writeToStream(OutputStream os) throws IOException { |
| byte[] data = new byte[9]; |
| copySF(data, Type.DESCRIPTOR, Category.OBJECT_AREA); |
| |
| addTriplet(new DescriptorPositionTriplet(OBJECT_AREA_POSITION_ID)); |
| addTriplet(new MeasurementUnitsTriplet(widthRes, heightRes)); |
| addTriplet(new ObjectAreaSizeTriplet(width, height)); |
| /* not allowed in Presentation Interchange Set 1 |
| addTriplet(new PresentationSpaceResetMixingTriplet( |
| PresentationSpaceResetMixingTriplet.NOT_RESET)); |
| */ |
| |
| int tripletDataLength = getTripletDataLength(); |
| byte[] len = BinaryUtils.convert(data.length + tripletDataLength - 1, 2); |
| data[1] = len[0]; // Length |
| data[2] = len[1]; |
| os.write(data); |
| |
| writeTriplets(os); |
| } |
| |
| } |