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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.render.afp.modca.goca;
-
- import java.io.IOException;
- import java.io.OutputStream;
- import java.util.Iterator;
- import java.util.List;
-
- import org.apache.fop.render.afp.modca.AbstractStructuredAFPObject;
- import org.apache.fop.render.afp.modca.PreparedAFPObject;
-
- /**
- * A base class container of GOCA structured objects
- */
- public abstract class AbstractGraphicsContainer extends AbstractStructuredAFPObject
- implements PreparedAFPObject {
-
- /**
- * list of objects contained within this container
- */
- protected List list = null;
-
- /**
- * Default constructor
- */
- public AbstractGraphicsContainer() {
- }
-
- /**
- * Named constructor
- * @param name the name of the container
- */
- public AbstractGraphicsContainer(String name) {
- super(name);
- }
-
- /**
- * {@inheritDoc}
- */
- protected void writeContent(OutputStream os) throws IOException {
- if (list != null) {
- super.writeObjectList(list, os);
- }
- }
-
- /**
- * Adds a given graphics drawing order to this container
- * @param drawingOrder the graphics drawing order
- * @return the drawingOrder if it was added, null otherwise
- */
- protected PreparedAFPObject addDrawingOrder(PreparedAFPObject drawingOrder) {
- log.debug(this + " adding " + drawingOrder);
- if (list == null) {
- this.list = new java.util.ArrayList();
- }
- list.add(drawingOrder);
- return drawingOrder;
- }
-
- /**
- * @return the current data length of this container including
- * all enclosed GOCA drawing objects (and their containers)
- */
- public int getDataLength() {
- int dataLen = 0;
- if (list != null) {
- Iterator it = list.iterator();
- while (it.hasNext()) {
- Object obj = it.next();
- if (obj instanceof PreparedAFPObject) {
- dataLen += ((PreparedAFPObject)obj).getDataLength();
- }
- }
- }
- return dataLen;
- }
- }
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