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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.myfaces.custom.graphicimagedynamic.util;
21  
22  import org.apache.myfaces.custom.dynamicResources.ResourceRenderer;
23  
24  /**
25   * The ImageRenderer is used to render the binary data for a html img tag
26   * Implementions must have a default constructor
27   * 
28   * @author Mathias Broekelmann
29   * @version $Revision: 472727 $ $Date: 2006-11-09 03:08:46 +0200 (Thu, 09 Nov 2006) $
30   */
31  public interface ImageRenderer extends ResourceRenderer
32  {
33      /**
34       * This method will be called first, to set the contexts.
35       * 
36       * @param facesContext the faces context
37       * @param imageContext the image context width aditional image parameters
38       *
39      void setContext(FacesContext facesContext, ImageContext imageContext) throws Exception;
40      */
41      /**
42       * Called to render the image to the given outputstream.
43       * 
44       * @param out the outputstream which is used to write the binary data of the image
45       *  
46       * @throws IOException
47       *
48      void renderImage(ResponseStream out) throws IOException;
49      */
50  }