/* * 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.fo; import java.util.HashSet; import java.util.Set; /** * Context class providing information needed while building the FO tree. */ public class FOTreeBuilderContext { /** * The current set of id's in the FO tree. * This is used so we know if the FO tree contains duplicates. */ private Set idReferences = new HashSet(); /** * The property list maker. */ protected PropertyListMaker propertyListMaker; /** * The XMLWhitespaceHandler for this tree */ protected XMLWhiteSpaceHandler whiteSpaceHandler = new XMLWhiteSpaceHandler(); /** * Indicates whether processing descendants of a marker */ private boolean inMarker; /** * Returns the set of ID references. * @return the ID references */ public Set getIDReferences() { return idReferences; } /** * Return the propertyListMaker. * * @return the currently active {@link PropertyListMaker} */ public PropertyListMaker getPropertyListMaker() { return propertyListMaker; } /** * Set a new propertyListMaker. * * @param propertyListMaker the new {@link PropertyListMaker} to use */ public void setPropertyListMaker(PropertyListMaker propertyListMaker) { this.propertyListMaker = propertyListMaker; } /** * Return the XMLWhiteSpaceHandler * @return the whiteSpaceHandler */ public XMLWhiteSpaceHandler getXMLWhiteSpaceHandler() { return whiteSpaceHandler; } /** * Switch to or from marker context * (used by FOTreeBuilder when processing * a marker) * * @param inMarker true if a marker is being processed; * false otherwise * */ protected void switchMarkerContext(boolean inMarker) { this.inMarker = inMarker; } /** * Check whether in marker context * * @return true if a marker is being processed */ protected boolean inMarker() { return this.inMarker; } }