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1   /*
2    *  XNap - A P2P framework and client.
3    *
4    *  See the file AUTHORS for copyright information.
5    *
6    *  This program is free software; you can redistribute it and/or modify
7    *  it under the terms of the GNU General Public License as published by
8    *  the Free Software Foundation.
9    *
10   *  This program is distributed in the hope that it will be useful,
11   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   *  GNU General Public License for more details.
14   *
15   *  You should have received a copy of the GNU General Public License
16   *  along with this program; if not, write to the Free Software
17   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18   */
19  
20  package org.xnap.gui.viewer;
21  
22  import java.io.File;
23  
24  import javax.swing.Icon;
25  import javax.swing.JComponent;
26  
27  /***
28   * Defines the requirements for classes that provides preview and possibly 
29   * edit functionality for files.
30   */
31  public interface Viewer
32  {
33      
34      //--- Method(s) ---
35  
36  	/***
37  	 * Returns a 16x16 icon.
38  	 */
39  	Icon getIcon();
40  
41      /***
42       * Hmm, that makes not much sense. We want to support threading.
43       */
44      JComponent getComponent();
45  
46      /***
47       * Returns the name of this viewer.
48       */
49      String getName();
50  
51  	/***
52  	 * Invoked when a file should be displayed.
53  	 */
54      void open(File file);
55  
56  	/***
57  	 * Invoked when the viewer is hidden.
58  	 */
59  	void close();
60  
61  }
62  
63  
64  
65  
66  
67  
68