/* * 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.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. * <p> * 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; } }