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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.layoutmgr.inline;
-
- import java.util.LinkedList;
- import java.util.List;
-
- import org.apache.fop.fo.flow.Float;
- import org.apache.fop.layoutmgr.FloatContentLayoutManager;
- import org.apache.fop.layoutmgr.InlineKnuthSequence;
- import org.apache.fop.layoutmgr.KnuthElement;
- import org.apache.fop.layoutmgr.KnuthPossPosIter;
- import org.apache.fop.layoutmgr.KnuthSequence;
- import org.apache.fop.layoutmgr.LayoutContext;
- import org.apache.fop.layoutmgr.LayoutManager;
- import org.apache.fop.layoutmgr.Position;
- import org.apache.fop.layoutmgr.PositionIterator;
- import org.apache.fop.layoutmgr.SpaceResolver;
-
- public class FloatLayoutManager extends InlineStackingLayoutManager {
-
- private FloatContentLayoutManager floatContentLM;
- private KnuthInlineBox anchor;
- private List<KnuthElement> floatContentKnuthElements;
- private Float floatContent;
- private boolean floatContentAreaAdded;
-
- public FloatLayoutManager(Float node) {
- super(node);
- floatContent = node;
- }
-
- protected LayoutManager getChildLM() {
- return null;
- }
-
- public LinkedList getNextKnuthElements(LayoutContext context, int alignment) {
-
- if (!floatContentAreaAdded && !floatContent.isDisabled()) {
- floatContentLM = new FloatContentLayoutManager(floatContent);
- floatContentLM.setParent(this);
- floatContentLM.initialize();
- floatContentKnuthElements = floatContentLM.getNextKnuthElements(context, alignment);
- SpaceResolver.resolveElementList(floatContentKnuthElements);
- }
-
- // the only knuth element is a zero width and height knuth box
- LinkedList knuthElements = new LinkedList();
- KnuthSequence seq = new InlineKnuthSequence();
- anchor = new KnuthInlineBox(0, null, null, true);
- if (!floatContentAreaAdded) {
- anchor.setFloatContentLM(floatContentLM);
- }
- anchor.setPosition(notifyPos(new Position(this)));
- seq.add(anchor);
- knuthElements.add(seq);
- setFinished(true);
-
- return knuthElements;
- }
-
- public void addAreas(PositionIterator posIter, LayoutContext context) {
- // "Unwrap" the NonLeafPositions stored in posIter
- while (posIter.hasNext()) {
- posIter.next();
- }
- }
-
- public void processAreas(LayoutContext context) {
- PositionIterator contentPosIter = new KnuthPossPosIter(floatContentKnuthElements, 0,
- floatContentKnuthElements.size());
- floatContentLM.addAreas(contentPosIter, context);
- floatContentAreaAdded = true;
- anchor.setFloatContentLM(null);
- }
- }
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