src/playlist.c

   1 /*
   2  * $Id$
   3  *
   4  * (c) 2004 by Kalle Wallin <kaw@linux.se>
   5  * (c) 2008 Max Kellermann <max@duempel.org>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program 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
  15  * GNU General Public License for more details.
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "playlist.h"
  23 #include "mpdclient.h"
  24 #include "ncmpc.h"
  25
  26 #include <string.h>
  27
  28 #define ENABLE_PLCHANGES
  29
  30 #define MPD_ERROR(c) (c==NULL || c->connection==NULL || c->connection->error)
  31
  32 void
  33 playlist_init(struct mpdclient_playlist *playlist)
  34 {
  35         playlist->id = 0;
  36         playlist->updated = FALSE;
  37         playlist->list = g_array_sized_new(FALSE, FALSE,
  38                                            sizeof(struct mpd_song *), 1024);
  39 }
  40
  41 void
  42 playlist_clear(struct mpdclient_playlist *playlist)
  43 {
  44         guint i;
  45
  46         for (i = 0; i < playlist->list->len; ++i) {
  47                 struct mpd_song *song = playlist_get(playlist, i);
  48
  49                 mpd_freeSong(song);
  50         }
  51
  52         g_array_set_size(playlist->list, 0);
  53 }
  54
  55 gint
  56 mpdclient_playlist_free(mpdclient_playlist_t *playlist)
  57 {
  58         if (playlist->list != NULL) {
  59                 playlist_clear(playlist);
  60                 g_array_free(playlist->list, TRUE);
  61         }
  62
  63         memset(playlist, 0, sizeof(mpdclient_playlist_t));
  64         return 0;
  65 }
  66
  67 struct mpd_song *
  68 playlist_get_song(mpdclient_t *c, gint idx)
  69 {
  70         if (idx < 0 || (guint)idx >= c->playlist.list->len)
  71                 return NULL;
  72
  73         return playlist_get(&c->playlist, idx);
  74 }
  75
  76 struct mpd_song *
  77 playlist_lookup_song(mpdclient_t *c, gint id)
  78 {
  79         guint i;
  80
  81         for (i = 0; i < c->playlist.list->len; ++i) {
  82                 struct mpd_song *song = playlist_get(&c->playlist, i);
  83                 if (song->id == id)
  84                         return song;
  85         }
  86
  87         return NULL;
  88 }
  89
  90 gint
  91 playlist_get_index(mpdclient_t *c, struct mpd_song *song)
  92 {
  93         guint i;
  94
  95         for (i = 0; i < c->playlist.list->len; ++i) {
  96                 if (playlist_get(&c->playlist, i) == song)
  97                         return (gint)i;
  98         }
  99
 100         return -1;
 101 }
 102
 103 gint
 104 playlist_get_index_from_id(mpdclient_t *c, gint id)
 105 {
 106         guint i;
 107
 108         for (i = 0; i < c->playlist.list->len; ++i) {
 109                 struct mpd_song *song = playlist_get(&c->playlist, i);
 110                 if (song->id == id)
 111                         return (gint)i;
 112         }
 113
 114         return -1;
 115 }
 116
 117 gint
 118 playlist_get_index_from_file(mpdclient_t *c, gchar *filename)
 119 {
 120         guint i;
 121
 122         for (i = 0; i < c->playlist.list->len; ++i) {
 123                 struct mpd_song *song = playlist_get(&c->playlist, i);
 124                 if(strcmp(song->file, filename) == 0)
 125                         return (gint)i;
 126         }
 127
 128         return -1;
 129 }