SVGFilterConverter


1   /*
2   
3      Copyright 2001  The Apache Software Foundation 
4   
5      Licensed under the Apache License, Version 2.0 (the "License");
6      you may not use this file except in compliance with the License.
7      You may obtain a copy of the License at
8   
9          http://www.apache.org/licenses/LICENSE-2.0
10  
11     Unless required by applicable law or agreed to in writing, software
12     distributed under the License is distributed on an "AS IS" BASIS,
13     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14     See the License for the specific language governing permissions and
15     limitations under the License.
16  
17   */
18  package org.apache.batik.svggen;
19  
20  import java.awt.Rectangle  ;
21  import java.awt.image.BufferedImageOp  ;
22  import java.util.List  ;
23  
24  /**
25   * Defines the interface for classes that are able to convert
26   * a BufferedImageOp filter.
27   *
28   * @author <a HREF="mailto:vincent.hardy@eng.sun.com">Vincent Hardy</a>
29   * @version $Id: SVGFilterConverter.java,v 1.7 2005/03/27 08:58:35 cam Exp $
30   * @see           org.apache.batik.svggen.SVGFilterDescriptor
31   */
32  public interface SVGFilterConverter extends SVGSyntax {
33      /**
34       * Converts a Java 2D API BufferedImageOp into
35       * a set of attribute/value pairs and related definitions
36       *
37       * @param filter BufferedImageOp filter to be converted
38       * @param filterRect Rectangle, in device space, that defines the area
39       *        to which filtering applies. May be null, meaning that the
40       *        area is undefined.
41       * @return descriptor of the attributes required to represent
42       *         the input filter
43       * @see org.apache.batik.svggen.SVGFilterDescriptor
44       */
45      public SVGFilterDescriptor toSVG(BufferedImageOp   filter, Rectangle   filterRect);
46  
47      /**
48       * @return set of definitions referenced by the attribute
49       *         values created by the implementation since its
50       *         creation. The return value should never be null.
51       *         If no definition is needed, an empty set should be
52       *         returned.
53       */
54      public List   getDefinitionSet();
55  }
56
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