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13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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25 
26 package javax.swing.plaf;
27 
28 import javax.swing.*;
29 import javax.swing.filechooser.FileFilter;
30 import javax.swing.filechooser.FileView;
31 import java.io.File;
32 
33 /**
34  * Pluggable look and feel interface for <code>JFileChooser</code>.
35  *
36  * @author Jeff Dinkins
37  */
38 
39 public abstract class FileChooserUI extends ComponentUI
40 {
41     /**
42      * Returns an accept-all file filter.
43      * @param fc the file chooser
44      * @return an accept-all file filter
45      */
getAcceptAllFileFilter(JFileChooser fc)46     public abstract FileFilter getAcceptAllFileFilter(JFileChooser fc);
47     /**
48      * Returns a file view.
49      * @param fc the file chooser
50      * @return a file view
51      */
getFileView(JFileChooser fc)52     public abstract FileView getFileView(JFileChooser fc);
53 
54     /**
55      * Returns approve button text.
56      * @param fc the file chooser
57      * @return approve button text.
58      */
getApproveButtonText(JFileChooser fc)59     public abstract String getApproveButtonText(JFileChooser fc);
60     /**
61      * Returns the dialog title.
62      * @param fc the file chooser
63      * @return the dialog title.
64      */
getDialogTitle(JFileChooser fc)65     public abstract String getDialogTitle(JFileChooser fc);
66 
67     /**
68      * Rescan the current directory.
69      * @param fc the file chooser
70      */
rescanCurrentDirectory(JFileChooser fc)71     public abstract void rescanCurrentDirectory(JFileChooser fc);
72     /**
73      * Ensure the file in question is visible.
74      * @param fc the file chooser
75      * @param f the file
76      */
ensureFileIsVisible(JFileChooser fc, File f)77     public abstract void ensureFileIsVisible(JFileChooser fc, File f);
78 
79     /**
80      * Returns default button for current <code>LookAndFeel</code>.
81      * <code>JFileChooser</code> will use this button as default button
82      * for dialog windows.
83      *
84      * @param fc the {@code JFileChooser} whose default button is requested
85      * @return the default JButton for current look and feel
86      * @since 1.7
87      */
getDefaultButton(JFileChooser fc)88     public JButton getDefaultButton(JFileChooser fc) {
89         return null;
90     }
91 }
92