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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 org.apache.fop.fo.PropertyList;
import org.apache.fop.fo.expr.PropertyException;
import org.apache.fop.fo.properties.NumberProperty.Maker;
/**
* Custom Maker adding validity check for reference-orientation
*/
public class ReferenceOrientationMaker extends Maker {
/**
* Constructor
* @param propId the Constant Id for the property to be made
*/
public ReferenceOrientationMaker(int propId) {
super(propId);
}
/**
* Check the value of the reference-orientation property.
*
* {@inheritDoc}
*/
public Property get(int subpropId, PropertyList propertyList,
boolean tryInherit, boolean tryDefault)
throws PropertyException {
Property p = super.get(0, propertyList, tryInherit, tryDefault);
int ro = 0;
if (p != null) {
ro = p.getNumeric().getValue();
}
if ((Math.abs(ro) % 90) == 0 && (Math.abs(ro) / 90) <= 3) {
return p;
} else {
throw new PropertyException("Illegal property value: "
+ "reference-orientation=\"" + ro + "\" "
+ "on " + propertyList.getFObj().getName());
}
}
}
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