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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.fo.properties;
import java.util.List;
import org.apache.fop.fo.Constants;
import org.apache.fop.fo.PropertyList;
import org.apache.fop.fo.expr.PropertyException;
/**
* A shorthand parser for the background-position shorthand
*/
public class BackgroundPositionShorthandParser extends GenericShorthandParser {
/**
* @see org.apache.fop.fo.properties.ShorthandParser#getValueForProperty(int, Property, PropertyMaker, PropertyList)
*/
public Property getValueForProperty(int propId,
Property property,
PropertyMaker maker,
PropertyList propertyList)
throws PropertyException {
int index = -1;
List propList = property.getList();
if (propId == Constants.PR_BACKGROUND_POSITION_HORIZONTAL) {
index = 0;
} else if (propId == Constants.PR_BACKGROUND_POSITION_VERTICAL) {
index = 1;
if (propList.size() == 1) {
/* only background-position-horizontal specified
* through the shorthand:
* background-position-vertical=50% (see: XSL-FO 1.0 -- 7.29.2)
*/
return maker.make(propertyList, "50%", propertyList.getParentFObj());
}
}
if (index >= 0) {
return (Property) propList.get(index);
} // else: invalid index? shouldn't happen...
return null;
}
}
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