/*
* 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: SystemColorFunction.java 627367 2008-02-13 12:03:30Z maxberger $ */
package org.apache.fop.fo.expr;
import org.apache.fop.apps.FOUserAgent;
import org.apache.fop.fo.properties.ColorProperty;
import org.apache.fop.fo.properties.Property;
/**
* Implements the system-color() function.
*/
class SystemColorFunction extends FunctionBase {
/** {@inheritDoc} */
public int nbArgs() {
return 1;
}
/** {@inheritDoc} */
public Property eval(Property[] args,
PropertyInfo pInfo) throws PropertyException {
FOUserAgent ua = (pInfo == null)
? null
: (pInfo.getFO() == null ? null : pInfo.getFO().getUserAgent());
return ColorProperty.getInstance(ua, "system-color(" + args[0] + ")");
}
}