1/*
2 * Copyright (c) 1995, 1996, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package sun.awt.image;
27
28import java.io.InputStream;
29import java.io.FileInputStream;
30import java.io.BufferedInputStream;
31import java.io.FileNotFoundException;
32
33public class FileImageSource extends InputStreamImageSource {
34    String imagefile;
35
36    public FileImageSource(String filename) {
37        SecurityManager security = System.getSecurityManager();
38        if (security != null) {
39            security.checkRead(filename);
40        }
41        imagefile = filename;
42    }
43
44    final boolean checkSecurity(Object context, boolean quiet) {
45        // File based images only ever need to be checked statically
46        // when the image is retrieved from the cache.
47        return true;
48    }
49
50    protected ImageDecoder getDecoder() {
51        if (imagefile == null) {
52            return null;
53        }
54
55        InputStream is;
56        try {
57            is = new BufferedInputStream(new FileInputStream(imagefile));
58        } catch (FileNotFoundException e) {
59            return null;
60        }
61        // Don't believe the file suffix - many users don't know what
62        // kind of image they have and guess wrong...
63        /*
64        int suffixpos = imagefile.lastIndexOf('.');
65        if (suffixpos >= 0) {
66            String suffix = imagefile.substring(suffixpos+1).toLowerCase();
67            if (suffix.equals("gif")) {
68                return new GifImageDecoder(this, is);
69            } else if (suffix.equals("jpeg") || suffix.equals("jpg") ||
70                       suffix.equals("jpe") || suffix.equals("jfif")) {
71                return new JPEGImageDecoder(this, is);
72            } else if (suffix.equals("xbm")) {
73                return new XbmImageDecoder(this, is);
74            }
75        }
76        */
77        return getDecoder(is);
78    }
79}
80