org.apache.fop.datatypes.SimplePercentBaseContext Maven / Gradle / Ivy
/*
* 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: SimplePercentBaseContext.java 679326 2008-07-24 09:35:34Z vhennebert $ */
package org.apache.fop.datatypes;
import org.apache.fop.fo.FObj;
/**
* Class to implement a simple lookup context for a single percent base value.
*/
public class SimplePercentBaseContext implements PercentBaseContext {
private PercentBaseContext parentContext;
private int lengthBase;
private int lengthBaseValue;
/**
* @param parentContext the context to be used for all percentages other than lengthBase
* @param lengthBase the particular percentage length base for which this context provides
* a value
* @param lengthBaseValue the value to be returned for requests to the given lengthBase
*/
public SimplePercentBaseContext(PercentBaseContext parentContext,
int lengthBase,
int lengthBaseValue) {
this.parentContext = parentContext;
this.lengthBase = lengthBase;
this.lengthBaseValue = lengthBaseValue;
}
/**
* Returns the value for the given lengthBase.
* {@inheritDoc}
*/
public int getBaseLength(int lengthBase, FObj fobj) {
// if its for us return our value otherwise delegate to parent context
if (lengthBase == this.lengthBase) {
return lengthBaseValue;
} else if (parentContext != null) {
return parentContext.getBaseLength(lengthBase, fobj);
}
return -1;
}
}