Remove AudioLibrary::uri2path and use Glib::filename_from_path in its place
[ardour.git] / libs / ardour / audio_library.cc
1 /*
2     Copyright (C) 2003-2006 Paul Davis
3
4     This program is free software; you can redistribute it and/or modify
5     it under the terms of the GNU General Public License as published by
6     the Free Software Foundation; either version 2 of the License, or
7     (at your option) any later version.
8
9     This program is distributed in the hope that it will be useful,
10     but WITHOUT ANY WARRANTY; without even the implied warranty of
11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12     GNU General Public License for more details.
13
14     You should have received a copy of the GNU General Public License
15     along with this program; if not, write to the Free Software
16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17
18 */
19
20 #include <sstream>
21
22 #include <libxml/uri.h>
23
24 #include <lrdf.h>
25
26 #include <glibmm/convert.h>
27
28 #include <pbd/compose.h>
29
30 #include <ardour/audio_library.h>
31 #include <ardour/utils.h>
32 #include <ardour/filesystem_paths.h>
33
34 #include "i18n.h"
35
36 using namespace std;
37 using namespace ARDOUR;
38
39 namespace {
40         const char* const sfdb_file_name = "sfdb";
41 } // anonymous namespace
42
43 static char* TAG = "http://ardour.org/ontology/Tag";
44
45 AudioLibrary::AudioLibrary ()
46 {
47         sys::path sfdb_file_path(user_config_directory ());
48
49         sfdb_file_path /= sfdb_file_name;
50
51         src = Glib::filename_to_uri (sfdb_file_path.to_string ());
52         
53         // workaround for possible bug in raptor that crashes when saving to a
54         // non-existant file.
55         touch_file(sfdb_file_path.to_string());
56
57         lrdf_read_file(src.c_str());
58 }
59
60 AudioLibrary::~AudioLibrary ()
61 {
62 }
63
64 void
65 AudioLibrary::save_changes ()
66 {
67         if (lrdf_export_by_source(src.c_str(), src.substr(5).c_str())) {
68                 PBD::warning << string_compose(_("Could not open %1.  Audio Library not saved"), src) << endmsg;
69         }
70 }
71
72 void
73 AudioLibrary::set_tags (string member, vector<string> tags)
74 {
75         sort (tags.begin(), tags.end());
76         tags.erase (unique(tags.begin(), tags.end()), tags.end());
77         
78         const string file_uri(Glib::filename_to_uri (member));
79         
80         lrdf_remove_uri_matches (file_uri.c_str());
81         
82         for (vector<string>::iterator i = tags.begin(); i != tags.end(); ++i) {
83                 lrdf_add_triple (src.c_str(), file_uri.c_str(), TAG, (*i).c_str(), lrdf_literal);
84         }
85 }
86
87 vector<string>
88 AudioLibrary::get_tags (string member)
89 {
90         vector<string> tags;
91         
92         lrdf_statement pattern;
93         pattern.subject = strdup(Glib::filename_to_uri(member).c_str());
94         pattern.predicate = TAG;
95         pattern.object = 0;
96         pattern.object_type = lrdf_literal;
97         
98         lrdf_statement* matches = lrdf_matches (&pattern);
99         free (pattern.subject);
100         
101         lrdf_statement* current = matches;
102         while (current != 0) {
103                 tags.push_back (current->object);
104                 
105                 current = current->next;
106         }
107         
108         lrdf_free_statements (matches);
109         
110         sort (tags.begin(), tags.end());
111         
112         return tags;
113 }
114
115 void
116 AudioLibrary::search_members_and (vector<string>& members, const vector<string> tags)
117 {
118         lrdf_statement **head;
119         lrdf_statement* pattern = 0;
120         lrdf_statement* old = 0;
121         head = &pattern;
122
123         vector<string>::const_iterator i;
124         for (i = tags.begin(); i != tags.end(); ++i){
125                 pattern = new lrdf_statement;
126                 pattern->subject = "?";
127                 pattern->predicate = TAG;
128                 pattern->object = strdup((*i).c_str());
129                 pattern->next = old;
130
131                 old = pattern;
132         }
133
134         if (*head != 0) {
135                 lrdf_uris* ulist = lrdf_match_multi(*head);
136                 for (uint32_t j = 0; ulist && j < ulist->count; ++j) {
137 //                      cerr << "AND: " << Glib::filename_from_uri(ulist->items[j]) << endl;
138                         members.push_back(Glib::filename_from_uri(ulist->items[j]));
139                 }
140                 lrdf_free_uris(ulist);
141
142             sort(members.begin(), members.end());
143             unique(members.begin(), members.end());
144         }
145
146         // memory clean up
147         pattern = *head;
148         while(pattern){
149                 free(pattern->object);
150                 old = pattern;
151                 pattern = pattern->next;
152                 delete old;
153         }
154 }