11a9b91dd14f9e8765a8acf788cafd6d86f1ec06
1 /* ncmpc (Ncurses MPD Client)
2 * (c) 2004-2009 The Music Player Daemon Project
3 * Project homepage: http://musicpd.org
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
20 #include "playlist.h"
22 #include <string.h>
24 #define ENABLE_PLCHANGES
26 #define MPD_ERROR(c) (c==NULL || c->connection==NULL || c->connection->error)
28 void
29 playlist_init(struct mpdclient_playlist *playlist)
30 {
31 playlist->version = 0;
32 playlist->list = g_ptr_array_sized_new(1024);
33 }
35 void
36 playlist_clear(struct mpdclient_playlist *playlist)
37 {
38 guint i;
40 playlist->version = 0;
42 for (i = 0; i < playlist->list->len; ++i) {
43 struct mpd_song *song = playlist_get(playlist, i);
45 mpd_song_free(song);
46 }
48 g_ptr_array_set_size(playlist->list, 0);
49 }
51 gint
52 mpdclient_playlist_free(struct mpdclient_playlist *playlist)
53 {
54 if (playlist->list != NULL) {
55 playlist_clear(playlist);
56 g_ptr_array_free(playlist->list, TRUE);
57 }
59 memset(playlist, 0, sizeof(*playlist));
60 return 0;
61 }
63 const struct mpd_song *
64 playlist_get_song(const struct mpdclient_playlist *playlist, gint idx)
65 {
66 if (idx < 0 || (guint)idx >= playlist_length(playlist))
67 return NULL;
69 return playlist_get(playlist, idx);
70 }
72 const struct mpd_song *
73 playlist_lookup_song(const struct mpdclient_playlist *playlist, unsigned id)
74 {
75 for (guint i = 0; i < playlist_length(playlist); ++i) {
76 struct mpd_song *song = playlist_get(playlist, i);
77 if (mpd_song_get_id(song) == id)
78 return song;
79 }
81 return NULL;
82 }
84 gint
85 playlist_get_index(const struct mpdclient_playlist *playlist,
86 const struct mpd_song *song)
87 {
88 for (guint i = 0; i < playlist_length(playlist); ++i) {
89 if (playlist_get(playlist, i) == song)
90 return (gint)i;
91 }
93 return -1;
94 }
96 gint
97 playlist_get_index_from_id(const struct mpdclient_playlist *playlist,
98 unsigned id)
99 {
100 for (guint i = 0; i < playlist_length(playlist); ++i) {
101 const struct mpd_song *song = playlist_get(playlist, i);
102 if (mpd_song_get_id(song) == id)
103 return (gint)i;
104 }
106 return -1;
107 }
109 gint
110 playlist_get_index_from_file(const struct mpdclient_playlist *playlist,
111 const gchar *filename)
112 {
113 for (guint i = 0; i < playlist_length(playlist); ++i) {
114 const struct mpd_song *song = playlist_get(playlist, i);
116 if (strcmp(mpd_song_get_uri(song), filename) == 0)
117 return (gint)i;
118 }
120 return -1;
121 }
123 gint
124 playlist_get_id_from_uri(const struct mpdclient_playlist *playlist,
125 const gchar *uri)
126 {
127 for (guint i = 0; i < playlist_length(playlist); ++i) {
128 const struct mpd_song *song = playlist_get(playlist, i);
130 if (strcmp(mpd_song_get_uri(song), uri) == 0)
131 return mpd_song_get_id(song);
132 }
134 return -1;
135 }