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->list = g_ptr_array_sized_new(1024);
  37 }
  38
  39 void
  40 playlist_clear(struct mpdclient_playlist *playlist)
  41 {
  42         guint i;
  43
  44         for (i = 0; i < playlist->list->len; ++i) {
  45                 struct mpd_song *song = playlist_get(playlist, i);
  46
  47                 mpd_freeSong(song);
  48         }
  49
  50         g_ptr_array_set_size(playlist->list, 0);
  51 }
  52
  53 gint
  54 mpdclient_playlist_free(mpdclient_playlist_t *playlist)
  55 {
  56         if (playlist->list != NULL) {
  57                 playlist_clear(playlist);
  58                 g_ptr_array_free(playlist->list, TRUE);
  59         }
  60
  61         memset(playlist, 0, sizeof(mpdclient_playlist_t));
  62         return 0;
  63 }
  64
  65 struct mpd_song *
  66 playlist_get_song(mpdclient_t *c, gint idx)
  67 {
  68         if (idx < 0 || (guint)idx >= c->playlist.list->len)
  69                 return NULL;
  70
  71         return playlist_get(&c->playlist, idx);
  72 }
  73
  74 struct mpd_song *
  75 playlist_lookup_song(mpdclient_t *c, gint id)
  76 {
  77         guint i;
  78
  79         for (i = 0; i < c->playlist.list->len; ++i) {
  80                 struct mpd_song *song = playlist_get(&c->playlist, i);
  81                 if (song->id == id)
  82                         return song;
  83         }
  84
  85         return NULL;
  86 }
  87
  88 gint
  89 playlist_get_index(mpdclient_t *c, struct mpd_song *song)
  90 {
  91         guint i;
  92
  93         for (i = 0; i < c->playlist.list->len; ++i) {
  94                 if (playlist_get(&c->playlist, i) == song)
  95                         return (gint)i;
  96         }
  97
  98         return -1;
  99 }
 100
 101 gint
 102 playlist_get_index_from_id(mpdclient_t *c, gint id)
 103 {
 104         guint i;
 105
 106         for (i = 0; i < c->playlist.list->len; ++i) {
 107                 struct mpd_song *song = playlist_get(&c->playlist, i);
 108                 if (song->id == id)
 109                         return (gint)i;
 110         }
 111
 112         return -1;
 113 }
 114
 115 gint
 116 playlist_get_index_from_file(mpdclient_t *c, gchar *filename)
 117 {
 118         guint i;
 119
 120         for (i = 0; i < c->playlist.list->len; ++i) {
 121                 struct mpd_song *song = playlist_get(&c->playlist, i);
 122                 if(strcmp(song->file, filename) == 0)
 123                         return (gint)i;
 124         }
 125
 126         return -1;
 127 }