org.apache.fop.datatypes.ValidationPercentBaseContext 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: ValidationPercentBaseContext.java 1617052 2014-08-10 06:55:01Z gadams $ */
package org.apache.fop.datatypes;
import org.apache.fop.fo.FObj;
/**
* This base context is used during validation when the actual base values are still unknown
* but should still already be checked. The actual value returned is not so important in this
* case. But it's important that zero and non-zero values can be distinguished.
*
* Example: A table with collapsing border model has no padding. The Table FO should be able
* to check if non-zero values (even percentages) have been specified.
*/
public final class ValidationPercentBaseContext implements PercentBaseContext {
/**
* Main constructor.
*/
private ValidationPercentBaseContext() {
}
/**
* Returns the value for the given lengthBase.
* {@inheritDoc}
*/
public int getBaseLength(int lengthBase, FObj fobj) {
//Simply return a dummy value which produces a non-zero value when a non-zero percentage
//was specified.
return 100000;
}
private static PercentBaseContext pseudoContextForValidation = new ValidationPercentBaseContext();
/** @return a base context for validation purposes. See class description. */
public static PercentBaseContext getPseudoContext() {
return pseudoContextForValidation;
}
}