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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.goca;
-
- import java.io.IOException;
- import java.io.OutputStream;
- import java.util.Collection;
- import java.util.Iterator;
- import java.util.List;
-
- import org.apache.fop.afp.Completable;
- import org.apache.fop.afp.Startable;
- import org.apache.fop.afp.StructuredData;
- import org.apache.fop.afp.modca.AbstractNamedAFPObject;
-
- /**
- * A base container of prepared structured AFP objects
- */
- public abstract class AbstractGraphicsDrawingOrderContainer extends AbstractNamedAFPObject
- implements StructuredData, Completable, Startable {
-
- /** list of objects contained within this container */
- protected List/*<StructuredDataObject>*/ objects
- = new java.util.ArrayList/*<StructuredDataObject>*/();
-
- /** object is complete */
- private boolean complete = false;
-
- /** object has started */
- private boolean started = false;
-
- /**
- * Default constructor
- */
- protected AbstractGraphicsDrawingOrderContainer() {
- }
-
- /**
- * Named constructor
- *
- * @param name the name of the container
- */
- protected AbstractGraphicsDrawingOrderContainer(String name) {
- super(name);
- }
-
- /** {@inheritDoc} */
- protected void writeStart(OutputStream os) throws IOException {
- setStarted(true);
- }
-
- /** {@inheritDoc} */
- protected void writeContent(OutputStream os) throws IOException {
- writeObjects(objects, os);
- }
-
- /**
- * Adds a given graphics object to this container
- *
- * @param object the structured data object
- */
- public void addObject(StructuredData object) {
- objects.add(object);
- }
-
- /**
- * Adds all the contents of a given graphics container to this container
- *
- * @param graphicsContainer a graphics container
- */
- public void addAll(AbstractGraphicsDrawingOrderContainer graphicsContainer) {
- Collection/*<StructuredDataObject>*/ objects = graphicsContainer.getObjects();
- objects.addAll(objects);
- }
-
- /**
- * Returns all the objects in this container
- *
- * @return all the objects in this container
- */
- private Collection getObjects() {
- return this.objects;
- }
-
- /**
- * Removes the last drawing order from this container and returns it
- *
- * @return the last drawing order from this container or null if empty
- */
- public StructuredData removeLast() {
- int lastIndex = objects.size() - 1;
- StructuredData object = null;
- if (lastIndex > -1) {
- object = (StructuredData)objects.get(lastIndex);
- objects.remove(lastIndex);
- }
- return object;
- }
-
- /**
- * Returns the current data length
- *
- * @return the current data length of this container including
- * all enclosed objects (and their containers)
- */
- public int getDataLength() {
- int dataLen = 0;
- Iterator it = objects.iterator();
- while (it.hasNext()) {
- dataLen += ((StructuredData)it.next()).getDataLength();
- }
- return dataLen;
- }
-
- /** {@inheritDoc} */
- public void setComplete(boolean complete) {
- Iterator it = objects.iterator();
- while (it.hasNext()) {
- Object object = it.next();
- if (object instanceof Completable) {
- ((Completable)object).setComplete(true);
- }
- }
- this.complete = true;
- }
-
- /** {@inheritDoc} */
- public boolean isComplete() {
- return this.complete;
- }
-
- /** {@inheritDoc} */
- public boolean isStarted() {
- return this.started;
- }
-
- /** {@inheritDoc} */
- public void setStarted(boolean started) {
- this.started = started;
- }
- }
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