| /* |
| * 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.layoutmgr; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.ListIterator; |
| |
| import org.apache.fop.layoutmgr.inline.KnuthInlineBox; |
| |
| public final class FootenoteUtil { |
| |
| private FootenoteUtil() { |
| } |
| |
| /** |
| * Returns the footnotes contained in the given element list. |
| */ |
| public static List<FootnoteBodyLayoutManager> getFootnotes(List<ListElement> elemenList) { |
| return getFootnotes(elemenList, 0, elemenList.size() - 1); |
| } |
| |
| /** |
| * Returns the footnotes contained in the given element list. |
| * |
| * @param startIndex index in the element list from which to start the scan, inclusive |
| * @param endIndex index in the element list at which to stop the scan, inclusive |
| */ |
| public static List<FootnoteBodyLayoutManager> getFootnotes( |
| List<ListElement> elemenList, int startIndex, int endIndex) { |
| ListIterator<ListElement> iter = elemenList.listIterator(startIndex); |
| List<FootnoteBodyLayoutManager> footnotes = null; |
| while (iter.nextIndex() <= endIndex) { |
| ListElement element = iter.next(); |
| if (element instanceof KnuthInlineBox && ((KnuthInlineBox) element).isAnchor()) { |
| footnotes = getFootnoteList(footnotes); |
| footnotes.add(((KnuthInlineBox) element).getFootnoteBodyLM()); |
| } else if (element instanceof KnuthBlockBox && ((KnuthBlockBox) element).hasAnchors()) { |
| footnotes = getFootnoteList(footnotes); |
| footnotes.addAll(((KnuthBlockBox) element).getFootnoteBodyLMs()); |
| } |
| } |
| if (footnotes == null) { |
| return Collections.emptyList(); |
| } else { |
| return footnotes; |
| } |
| } |
| |
| private static <T> List<T> getFootnoteList(List<T> footnotes) { |
| if (footnotes == null) { |
| return new ArrayList<T>(); |
| } else { |
| return footnotes; |
| } |
| } |
| |
| } |