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6ce136da JL |
1 | /* |
2 | GNU Lesser General Public License | |
3 | ||
4 | MutableFilter | |
5 | Copyright (C) 2000 Howard Kistler | |
6 | ||
7 | This library is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU Lesser General Public | |
9 | License as published by the Free Software Foundation; either | |
10 | version 2.1 of the License, or (at your option) any later version. | |
11 | ||
12 | This library is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public | |
18 | License along with this library; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | package com.hexidec.ekit.component; | |
23 | ||
24 | import java.io.File; | |
25 | import javax.swing.filechooser.FileFilter; | |
26 | ||
27 | /** Class for providing JFileChooser with a FileFilter | |
28 | */ | |
29 | public class MutableFilter extends FileFilter | |
30 | { | |
31 | private String[] acceptableExtensions; | |
32 | private String descriptor; | |
33 | ||
34 | public MutableFilter(String[] exts, String desc) | |
35 | { | |
36 | acceptableExtensions = exts; | |
37 | StringBuffer strbDesc = new StringBuffer(desc + " ("); | |
38 | for(int i = 0; i < acceptableExtensions.length; i++) | |
39 | { | |
40 | if(i > 0) { strbDesc.append(", "); } | |
41 | strbDesc.append("*." + acceptableExtensions[i]); | |
42 | } | |
43 | strbDesc.append(")"); | |
44 | descriptor = strbDesc.toString(); | |
45 | } | |
46 | ||
47 | public boolean accept(File file) | |
48 | { | |
49 | if(file.isDirectory()) | |
50 | { | |
51 | return true; | |
52 | } | |
53 | String fileName = file.getName(); | |
54 | String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1, fileName.length()).toLowerCase(); | |
55 | if(fileExt != null) | |
56 | { | |
57 | for(int i = 0; i < acceptableExtensions.length; i++) | |
58 | { | |
59 | if(fileExt.equals(acceptableExtensions[i])) | |
60 | { | |
61 | return true; | |
62 | } | |
63 | } | |
64 | return false; | |
65 | } | |
66 | else | |
67 | { | |
68 | return false; | |
69 | } | |
70 | } | |
71 | ||
72 | public String getDescription() | |
73 | { | |
74 | return descriptor; | |
75 | } | |
76 | } | |
77 |