+++ /dev/null
-/*
- * Copyright 1999-2004 The Apache Software Foundation.
- *
- * Licensed 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.LinkedList;
-import java.util.List;
-
-import org.apache.fop.apps.FOPException;
-import org.apache.fop.area.Area;
-import org.apache.fop.fo.flow.Marker;
-import org.apache.fop.fo.flow.RetrieveMarker;
-
-/**
- * LayoutManager for a block FO.
- */
-public class RetrieveMarkerLayoutManager extends AbstractLayoutManager
- implements InlineLevelLayoutManager {
-
- private RetrieveMarker fobj;
-
- private LayoutManager replaceLM = null;
- private boolean loaded = false;
- private String name;
- private int position;
- private int boundary;
- private List markerLMList = new ArrayList(10);
-
- /**
- * Create a new block container layout manager.
- */
- public RetrieveMarkerLayoutManager(RetrieveMarker node) {
- super(node);
- fobj = node;
- name = node.getRetrieveClassName();
- position = node.getRetrievePosition();
- boundary = node.getRetrieveBoundary();
- }
-
- public boolean generatesInlineAreas() {
- loadLM();
- if (replaceLM == null) {
- return true;
- }
- return replaceLM.generatesInlineAreas();
- }
-
- public BreakPoss getNextBreakPoss(LayoutContext context) {
- loadLM();
- if (replaceLM == null) {
- return null;
- }
- return replaceLM.getNextBreakPoss(context);
- }
-
- /**
- * @see org.apache.fop.layoutmgr.InlineLevelLayoutManager#getNextKnuthElements
- */
- public LinkedList getNextKnuthElements(LayoutContext context,
- int alignment) {
- loadLM();
- if (replaceLM == null) {
- return null;
- }
- return ((InlineLevelLayoutManager) replaceLM)
- .getNextKnuthElements(context, alignment);
- }
-
- /**
- * @see org.apache.fop.layoutmgr.InlineLevelLayoutManager#addALetterSpaceTo
- */
- public KnuthElement addALetterSpaceTo(KnuthElement element) {
- loadLM();
- if (replaceLM == null) {
- return null;
- }
- return ((InlineLevelLayoutManager) replaceLM)
- .addALetterSpaceTo(element);
- }
-
- /**
- * @see org.apache.fop.layoutmgr.InlineLevelLayoutManager#getWordChars
- */
- public void getWordChars(StringBuffer sbChars, Position pos) {
- loadLM();
- if (replaceLM != null) {
- ((InlineLevelLayoutManager) replaceLM)
- .getWordChars(sbChars, pos);
- }
- }
-
- /**
- * @see org.apache.fop.layoutmgr.InlineLevelLayoutManager#hyphenate
- */
- public void hyphenate(Position pos, HyphContext hc) {
- loadLM();
- if (replaceLM != null) {
- ((InlineLevelLayoutManager) replaceLM).hyphenate(pos, hc);
- }
- }
-
- /**
- * @see org.apache.fop.layoutmgr.InlineLevelLayoutManager#applyChanges
- */
- public boolean applyChanges(List oldList) {
- loadLM();
- if (replaceLM == null) {
- return false;
- }
- return ((InlineLevelLayoutManager) replaceLM)
- .applyChanges(oldList);
- }
-
- /**
- * @see org.apache.fop.layoutmgr.InlineLevelLayoutManager#getChangedKnuthElements
- */
- public LinkedList getChangedKnuthElements(List oldList,
- int flaggedPenalty,
- int alignment) {
- loadLM();
- if (replaceLM == null) {
- return null;
- }
- return ((InlineLevelLayoutManager) replaceLM)
- .getChangedKnuthElements(oldList, flaggedPenalty,
- alignment);
- }
-
- public void addAreas(PositionIterator parentIter,
- LayoutContext layoutContext) {
-
- loadLM();
- replaceLM.addAreas(parentIter, layoutContext);
-
- }
-
- public boolean isFinished() {
- loadLM();
- if (replaceLM == null) {
- return true;
- }
- return replaceLM.isFinished();
- }
-
- public void setFinished(boolean fin) {
- if (replaceLM != null) {
- replaceLM.setFinished(fin);
- }
- }
-
- /** @todo unsure how markerLMList will get tied to main currentLMList
- of AreaTreeHandler */
- protected void loadLM() {
- if (loaded) {
- return;
- }
- loaded = true;
- if (replaceLM == null) {
- List list = new ArrayList();
- Marker marker = retrieveMarker(name, position, boundary);
- if (marker != null) {
- try {
- marker.rebind(fobj.getPropertyList());
- } catch (FOPException exc) {
- log.error("fo:retrieve-marker unable to rebind property values", exc);
- }
- marker.addLayoutManager(list);
- if (list.size() > 0) {
- replaceLM = (LayoutManager)list.get(0);
- replaceLM.setParent(this);
- replaceLM.initialize();
- log.debug("retrieved: " + replaceLM + ":" + list.size());
- }
- } else {
- log.debug("found no marker with name: " + name);
- }
- }
- }
-
- /**
- * Get the parent area for children of this block container.
- * This returns the current block container area
- * and creates it if required.
- *
- * @see org.apache.fop.layoutmgr.LayoutManager#getParentArea(Area)
- */
- public Area getParentArea(Area childArea) {
- return parentLM.getParentArea(childArea);
- }
-
- /**
- * Add the child to the block container.
- *
- * @see org.apache.fop.layoutmgr.LayoutManager#addChild(Area)
- */
- public void addChild(Area childArea) {
- parentLM.addChild(childArea);
- }
-
- /**
- * @see org.apache.fop.layoutmgr.LayoutManager#resetPosition(Position)
- */
- public void resetPosition(Position resetPos) {
- loadLM();
- if (resetPos == null) {
- reset(null);
- }
- if (replaceLM != null) {
- replaceLM.resetPosition(null);
- }
- loaded = false;
- replaceLM = null;
- }
-
-}
-
projects / xmlgraphics-fop.git / commitdiff