123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136 |
- /*
- * 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.render.rtf.rtflib.tools;
-
- import java.util.Map;
-
- import org.apache.commons.logging.Log;
- import org.apache.commons.logging.LogFactory;
-
- import org.apache.fop.datatypes.LengthBase;
- import org.apache.fop.datatypes.PercentBaseContext;
- import org.apache.fop.fo.FONode;
- import org.apache.fop.fo.FObj;
- import org.apache.fop.fo.flow.table.Table;
- import org.apache.fop.fo.pagination.PageSequence;
-
- /**
- * PercentBaseContext implementation to track base widths for percentage calculations.
- */
- public class PercentContext implements PercentBaseContext {
- private static Log log = LogFactory.getLog(PercentContext.class);
-
- /** Map containing the FObj and its width */
- private Map lengthMap = new java.util.HashMap();
-
- /** Map containing the Tables and their table units */
- private Map tableUnitMap = new java.util.HashMap();
-
- /** Variable to check if a base width is set */
- private boolean baseWidthSet = false;
-
- /**
- * Returns the available width for a specific FObj
- *
- * @param lengthBase
- * lengthBase not used
- * @param fobj
- * the FObj
- * @return Available Width
- */
- public int getBaseLength(int lengthBase, FObj fobj) {
- if (fobj == null) {
- return 0;
- }
- switch (lengthBase) {
- case LengthBase.CONTAINING_BLOCK_WIDTH:
- case LengthBase.PARENT_AREA_WIDTH:
- case LengthBase.CONTAINING_REFAREA_WIDTH:
- Object width = lengthMap.get(fobj);
- if (width != null) {
- return Integer.parseInt(width.toString());
- } else {
- return -1;
- }
- case LengthBase.TABLE_UNITS:
- Object unit = tableUnitMap.get(fobj);
- return (unit != null) ? ((Integer)unit).intValue() : 0;
- default:
- log.error(new Exception("Unsupported base type for LengthBase:" + lengthBase));
- return 0;
- }
- }
-
- /**
- * Elements having a width property can call this function if their width is
- * calculated in RTFHandler
- *
- * @param fobj the FObj
- * @param width width of the FObj (in millipoints)
- */
- public void setDimension(FObj fobj, int width) {
- // TODO ACCEPT only objects above for setting a width
- if (fobj instanceof PageSequence) {
- baseWidthSet = true;
- }
- // width in mpt
- lengthMap.put(fobj, new Integer(width));
- }
-
- /**
- * Records the calculated table unit for a given table.
- * @param table the table for which the table unit is set
- * @param tableUnit the table unit value (in millipoints)
- */
- public void setTableUnit(Table table, int tableUnit) {
- tableUnitMap.put(table, new Integer(tableUnit));
- }
-
- /**
- * Searches for the parent object of fobj.
- */
- private Integer findParent(FONode fobj) {
- if (fobj.getRoot() != fobj) {
- if (lengthMap.containsKey(fobj)) {
- return new Integer(lengthMap.get(fobj).toString());
- } else {
- return findParent(fobj.getParent());
- }
- } else {
- log.error("Base Value for element " + fobj.getName() + " not found");
- return new Integer(-1);
- }
- }
-
- /**
- * Elements willing to use this context have to register themselves by
- * calling this function.
- *
- * @param fobj the FObj
- */
- public void setDimension(FObj fobj) {
- if (baseWidthSet) {
- Integer width = findParent(fobj.getParent());
- if (width.intValue() != -1) {
- lengthMap.put(fobj, width);
- }
- }
- }
- }
|