mpdclient: moved code to playlist.c

Move everything which manipulates the mpdclient_playlist struct to
playlist.c.  Many of the functions get a mpdclient pointer instead of
a playlist; this will be changed later.

The functions mpdclient_playlist_update() and
mpdclient_playlist_update_changes() stay in mpdclient.c for now, since
they are tightly connected to the client code.

1 files changed, 113 insertions, 0 deletions

diff --git a/src/playlist.c b/src/playlist.c
new file mode 100644
index 000000000..e2530435e
--- /dev/null
+++ b/src/playlist.c
@@ -0,0 +1,113 @@
+/*
+ * $Id$
+ *
+ * (c) 2004 by Kalle Wallin <kaw@linux.se>
+ * (c) 2008 Max Kellermann <max@duempel.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include "playlist.h"
+#include "mpdclient.h"
+#include "ncmpc.h"
+
+#include <string.h>
+
+#define ENABLE_PLCHANGES
+
+#define MPD_ERROR(c) (c==NULL || c->connection==NULL || c->connection->error)
+
+gint
+mpdclient_playlist_free(mpdclient_playlist_t *playlist)
+{
+	guint i;
+
+	for (i = 0; i < playlist->list->len; ++i) {
+		struct mpd_song *song = g_array_index(playlist->list, struct mpd_song *, i);
+		mpd_freeSong(song);
+	}
+
+	g_array_free(playlist->list, TRUE);
+	memset(playlist, 0, sizeof(mpdclient_playlist_t));
+	return 0;
+}
+
+struct mpd_song *
+playlist_get_song(mpdclient_t *c, gint idx)
+{
+	if (idx < 0 || (guint)idx >= c->playlist.list->len)
+		return NULL;
+
+	return g_array_index(c->playlist.list, struct mpd_song *, idx);
+}
+
+struct mpd_song *
+playlist_lookup_song(mpdclient_t *c, gint id)
+{
+	guint i;
+
+	for (i = 0; i < c->playlist.list->len; ++i) {
+		struct mpd_song *song = g_array_index(c->playlist.list,
+						      struct mpd_song *, i);
+		if (song->id == id)
+			return song;
+	}
+
+	return NULL;
+}
+
+gint
+playlist_get_index(mpdclient_t *c, struct mpd_song *song)
+{
+	guint i;
+
+	for (i = 0; i < c->playlist.list->len; ++i) {
+		if (g_array_index(c->playlist.list, struct mpd_song *, i)
+		    == song)
+			return (gint)i;
+	}
+
+	return -1;
+}
+
+gint
+playlist_get_index_from_id(mpdclient_t *c, gint id)
+{
+	guint i;
+
+	for (i = 0; i < c->playlist.list->len; ++i) {
+		struct mpd_song *song = g_array_index(c->playlist.list,
+						      struct mpd_song *, i);
+		if (song->id == id)
+			return (gint)i;
+	}
+
+	return -1;
+}
+
+gint
+playlist_get_index_from_file(mpdclient_t *c, gchar *filename)
+{
+	guint i;
+
+	for (i = 0; i < c->playlist.list->len; ++i) {
+		struct mpd_song *song = g_array_index(c->playlist.list,
+						      struct mpd_song *, i);
+		if(strcmp(song->file, filename) == 0)
+			return (gint)i;
+	}
+
+	return -1;
+}