| /* |
| |
| 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. |
| |
| */ |
| package org.apache.batik.svggen; |
| |
| import java.util.HashMap; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * Abstract class with common utility methods used by subclasses |
| * for specific convertion operations. It holds a reference to a |
| * domFactory Document, which many implementations use, and provides |
| * a convenience method, to offers a convertion of double values |
| * to String that remove the trailing '.' character on integral |
| * values. |
| * |
| * @author <a href="mailto:vincent.hardy@eng.sun.com">Vincent Hardy</a> |
| * @version $Id$ |
| */ |
| |
| public abstract class AbstractSVGConverter implements SVGConverter, ErrorConstants { |
| /** |
| * Used by converters to create Elements and other DOM objects |
| */ |
| protected SVGGeneratorContext generatorContext; |
| |
| /** |
| * Map of descriptions already processed by this converter. The |
| * key type is left to the implementations |
| */ |
| protected Map descMap = new HashMap(); |
| |
| /** |
| * Set of definitions to interpret the values of the attributes |
| * generated by this converter since its creation |
| */ |
| protected List defSet = new LinkedList(); |
| |
| /** |
| * @param generatorContext can be used by the SVGConverter extensions |
| * to create Elements and other types of DOM objects. |
| */ |
| public AbstractSVGConverter(SVGGeneratorContext generatorContext) { |
| if (generatorContext == null) |
| throw new SVGGraphics2DRuntimeException(ERR_CONTEXT_NULL); |
| |
| this.generatorContext = generatorContext; |
| } |
| |
| /** |
| * @return set of definitions referenced by the attribute |
| * values created by the implementation since its |
| * creation. The return value should never be null. |
| * If no definition is needed, an empty set should be |
| * returned. |
| */ |
| public List getDefinitionSet() { |
| return defSet; |
| } |
| |
| /** |
| * Utility method for subclasses. |
| */ |
| public final String doubleString(double value) { |
| return generatorContext.doubleString(value); |
| } |
| } |