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 gint
  33 mpdclient_playlist_free(mpdclient_playlist_t *playlist)
  34 {
  35         guint i;
  36
  37         for (i = 0; i < playlist->list->len; ++i) {
  38                 struct mpd_song *song = g_array_index(playlist->list, struct mpd_song *, i);
  39                 mpd_freeSong(song);
  40         }
  41
  42         g_array_free(playlist->list, TRUE);
  43         memset(playlist, 0, sizeof(mpdclient_playlist_t));
  44         return 0;
  45 }
  46
  47 struct mpd_song *
  48 playlist_get_song(mpdclient_t *c, gint idx)
  49 {
  50         if (idx < 0 || (guint)idx >= c->playlist.list->len)
  51                 return NULL;
  52
  53         return g_array_index(c->playlist.list, struct mpd_song *, idx);
  54 }
  55
  56 struct mpd_song *
  57 playlist_lookup_song(mpdclient_t *c, gint id)
  58 {
  59         guint i;
  60
  61         for (i = 0; i < c->playlist.list->len; ++i) {
  62                 struct mpd_song *song = g_array_index(c->playlist.list,
  63                                                       struct mpd_song *, i);
  64                 if (song->id == id)
  65                         return song;
  66         }
  67
  68         return NULL;
  69 }
  70
  71 gint
  72 playlist_get_index(mpdclient_t *c, struct mpd_song *song)
  73 {
  74         guint i;
  75
  76         for (i = 0; i < c->playlist.list->len; ++i) {
  77                 if (g_array_index(c->playlist.list, struct mpd_song *, i)
  78                     == song)
  79                         return (gint)i;
  80         }
  81
  82         return -1;
  83 }
  84
  85 gint
  86 playlist_get_index_from_id(mpdclient_t *c, gint id)
  87 {
  88         guint i;
  89
  90         for (i = 0; i < c->playlist.list->len; ++i) {
  91                 struct mpd_song *song = g_array_index(c->playlist.list,
  92                                                       struct mpd_song *, i);
  93                 if (song->id == id)
  94                         return (gint)i;
  95         }
  96
  97         return -1;
  98 }
  99
 100 gint
 101 playlist_get_index_from_file(mpdclient_t *c, gchar *filename)
 102 {
 103         guint i;
 104
 105         for (i = 0; i < c->playlist.list->len; ++i) {
 106                 struct mpd_song *song = g_array_index(c->playlist.list,
 107                                                       struct mpd_song *, i);
 108                 if(strcmp(song->file, filename) == 0)
 109                         return (gint)i;
 110         }
 111
 112         return -1;
 113 }