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- /*
- * Copyright 1999-2005 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.fo.properties;
-
- import java.util.Iterator;
-
- import org.apache.fop.fo.PropertyList;
- import org.apache.fop.fo.expr.PropertyException;
-
- /**
- * Generic shorthand parser for ListProperties
- */
- public class GenericShorthandParser implements ShorthandParser {
-
- /**
- * Constructor.
- */
- public GenericShorthandParser() {
- }
-
- /**
- * @param list the ListProperty
- * @param index the index into the List of properties
- * @return the property from the List of properties at the index parameter
- */
- protected Property getElement(Property list, int index) {
- if (list.getList().size() > index) {
- return (Property) list.getList().get(index);
- } else {
- return null;
- }
- }
-
- /**
- * @see org.apache.fop.fo.properties.ShorthandParser#getValueForProperty()
- */
- public Property getValueForProperty(int propId,
- Property property,
- PropertyMaker maker,
- PropertyList propertyList)
- throws PropertyException {
- // Check for keyword "inherit"
- if (property.getList().size() == 1) {
- String sval = getElement(property, 0).getString();
- if (sval != null && sval.equals("inherit")) {
- return propertyList.getFromParent(propId);
- }
- }
- return convertValueForProperty(propId, property, maker, propertyList);
- }
-
-
- /**
- * Converts a property name into a Property
- * @param propId the property ID in the Constants interface
- * @param maker the Property.Maker to be used in the conversion
- * @param property ...
- * @param propertyList the PropertyList from which the Property should be
- * extracted
- * @return the Property matching the parameters, or null if not found
- * @throws PropertyException (when?)
- */
- protected Property convertValueForProperty(int propId,
- Property property,
- PropertyMaker maker,
- PropertyList propertyList)
- throws PropertyException {
- Property prop = null;
- // Try each of the stored values in turn
- Iterator iprop = property.getList().iterator();
- while (iprop.hasNext() && prop == null) {
- Property p = (Property)iprop.next();
- prop = maker.convertShorthandProperty(propertyList, p, null);
- }
- return prop;
- }
-
- }
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