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20 package org.xnap.gui.viewer;
21
22 import java.io.File;
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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
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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 }
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