580b1c98069d8fca9809c6cc5da1a35daf0a4644
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 #ifndef MPDCLIENT_PLAYLIST_H
21 #define MPDCLIENT_PLAYLIST_H
23 #include <mpd/client.h>
25 #include <assert.h>
26 #include <glib.h>
28 struct mpdclient_playlist {
29 /* playlist id */
30 unsigned id;
32 /* the list */
33 GPtrArray *list;
34 };
36 void
37 playlist_init(struct mpdclient_playlist *playlist);
39 /** remove and free all songs in the playlist */
40 void
41 playlist_clear(struct mpdclient_playlist *playlist);
43 /* free a playlist */
44 gint
45 mpdclient_playlist_free(struct mpdclient_playlist *playlist);
47 static inline guint
48 playlist_length(const struct mpdclient_playlist *playlist)
49 {
50 assert(playlist != NULL);
51 assert(playlist->list != NULL);
53 return playlist->list->len;
54 }
56 static inline gboolean
57 playlist_is_empty(const struct mpdclient_playlist *playlist)
58 {
59 return playlist_length(playlist) == 0;
60 }
62 static inline struct mpd_song *
63 playlist_get(const struct mpdclient_playlist *playlist, guint idx)
64 {
65 assert(idx < playlist_length(playlist));
67 return g_ptr_array_index(playlist->list, idx);
68 }
70 static inline void
71 playlist_append(struct mpdclient_playlist *playlist, const struct mpd_song *song)
72 {
73 g_ptr_array_add(playlist->list, mpd_song_dup(song));
74 }
76 static inline void
77 playlist_set(const struct mpdclient_playlist *playlist, guint idx,
78 const struct mpd_song *song)
79 {
80 assert(idx < playlist_length(playlist));
82 g_ptr_array_index(playlist->list, idx) = mpd_song_dup(song);
83 }
85 static inline void
86 playlist_replace(struct mpdclient_playlist *playlist, guint idx,
87 const struct mpd_song *song)
88 {
89 mpd_song_free(playlist_get(playlist, idx));
90 playlist_set(playlist, idx, song);
91 }
93 static inline struct mpd_song *
94 playlist_remove_reuse(struct mpdclient_playlist *playlist, guint idx)
95 {
96 return g_ptr_array_remove_index(playlist->list, idx);
97 }
99 static inline void
100 playlist_remove(struct mpdclient_playlist *playlist, guint idx)
101 {
102 mpd_song_free(playlist_remove_reuse(playlist, idx));
103 }
105 static inline void
106 playlist_swap(struct mpdclient_playlist *playlist, guint idx1, guint idx2)
107 {
108 struct mpd_song *song1 = playlist_get(playlist, idx1);
109 struct mpd_song *song2 = playlist_get(playlist, idx2);
110 int n;
112 /* update the songs position field */
113 n = mpd_song_get_pos(song1);
114 mpd_song_set_pos(song1, mpd_song_get_pos(song2));
115 mpd_song_set_pos(song2, n);
117 /* update the array */
118 g_ptr_array_index(playlist->list, idx1) = song2;
119 g_ptr_array_index(playlist->list, idx2) = song1;
120 }
122 struct mpd_song *
123 playlist_lookup_song(struct mpdclient_playlist *playlist, unsigned id);
125 struct mpd_song *
126 playlist_get_song(struct mpdclient_playlist *playlist, gint index);
128 gint
129 playlist_get_index(const struct mpdclient_playlist *playlist,
130 const struct mpd_song *song);
132 gint
133 playlist_get_index_from_id(const struct mpdclient_playlist *playlist,
134 unsigned id);
136 gint
137 playlist_get_index_from_file(const struct mpdclient_playlist *playlist,
138 const gchar *filename);
140 static inline gint
141 playlist_get_index_from_same_song(const struct mpdclient_playlist *playlist,
142 const struct mpd_song *song)
143 {
144 return playlist_get_index_from_file(playlist, mpd_song_get_uri(song));
145 }
147 #endif