/*
* 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.FObj;
import org.apache.fop.fo.PropertyList;
import org.apache.fop.fo.expr.NCnameProperty;
import org.apache.fop.fo.expr.PropertyException;
/**
* Dedicated {@link org.apache.fop.fo.properties.PropertyMaker} for handling the
* <a href="http://www.w3.org/TR/xsl/#text-decoration"><code>text-decoration</code></a>
* property.
*/
public class TextDecorationMaker extends ListProperty.Maker {
/**
* Create a maker for the given property id.
* @param propId id of the property for which a maker should be created
*/
public TextDecorationMaker(int propId) {
super(propId);
}
/**
* {@inheritDoc}
* Add validation rules for the <code>text-decoration</code> property.
*/
@Override
public Property convertProperty(Property p,
PropertyList propertyList,
FObj fo)
throws PropertyException {
ListProperty listProp = (ListProperty) super.convertProperty(p, propertyList, fo);
List lst = listProp.getList();
boolean none = false;
boolean under = false;
boolean over = false;
boolean through = false;
boolean blink = false;
int enumValue = -1;
for (int i = lst.size(); --i >= 0;) {
Property prop = (Property)lst.get(i);
if (prop instanceof NCnameProperty) {
prop = checkEnumValues(prop.getString());
lst.set(i, prop);
}
if (prop != null) {
enumValue = prop.getEnum();
}
switch (enumValue) {
case Constants.EN_NONE:
if (under | over | through | blink) {
throw new PropertyException("Invalid combination of values");
}
none = true;
break;
case Constants.EN_UNDERLINE:
case Constants.EN_NO_UNDERLINE:
case Constants.EN_OVERLINE:
case Constants.EN_NO_OVERLINE:
case Constants.EN_LINE_THROUGH:
case Constants.EN_NO_LINE_THROUGH:
case Constants.EN_BLINK:
case Constants.EN_NO_BLINK:
if (none) {
throw new PropertyException(
"'none' specified, no additional values allowed");
}
switch (enumValue) {
case Constants.EN_UNDERLINE:
case Constants.EN_NO_UNDERLINE:
if (!under) {
under = true;
continue;
}
case Constants.EN_OVERLINE:
case Constants.EN_NO_OVERLINE:
if (!over) {
over = true;
continue;
}
case Constants.EN_LINE_THROUGH:
case Constants.EN_NO_LINE_THROUGH:
if (!through) {
through = true;
continue;
}
case Constants.EN_BLINK:
case Constants.EN_NO_BLINK:
if (!blink) {
blink = true;
continue;
}
default:
throw new PropertyException("Invalid combination of values");
}
default:
throw new PropertyException("Invalid value specified: " + p);
}
}
return listProp;
}
}