libsaria: Track the length of playlists

Signed-off-by: Bryan Schumaker <bjschuma@gmail.com>

include/libsaria/playlist.h

@@ -33,6 +33,7 @@ namespace libsaria
 	class Playlist {
 		private:
 			unsigned int flags;
+			unsigned int length;
 			PlaylistType type;
 			list<Track *>::iterator cur;
 
@@ -65,6 +66,7 @@ namespace libsaria
 			string &get_name();
 			void rename(string &);
 			unsigned int get_size();
+			unsigned int get_length();
 			PlaylistType get_type();
 
 			virtual void add_tracks(list<Track *> &) = 0;

include/libsaria/track.h

@@ -52,6 +52,7 @@ namespace libsaria
 			string &get_comment();
 			string &get_genre();
 			string &get_lenstr();
+			int &get_length();
 			unsigned int &get_year();
 			unsigned int &get_track();
 

libsaria/playlist/add.cpp

@@ -30,6 +30,7 @@ namespace libsaria
 		it = tracks.begin();
 		for (cur_it = plist.begin(); cur_it != plist.end(); cur_it++) {
 			if ((*cur_it) == (*it)) {
+				length += (*it)->get_length();
 				RENDER( insert(*it, ins_index) );
 				if (it++ == tracks.end())
 					break;
@@ -51,6 +52,7 @@ namespace libsaria
 
 		for (it = tracks.begin(); it != tracks.end(); it++) {
 			plist.push_back(*it);
+			length += (*it)->get_length();
 			RENDER( insert(*it, plist.size()) );
 		};
 
@@ -68,6 +70,7 @@ namespace libsaria
 		tracks.reverse();
 		for (it = tracks.begin(); it != tracks.end(); it++) {
 			plist.push_front(*it);
+			length += (*it)->get_length();
 			RENDER( insert(*it, 0) );
 		}
 

libsaria/playlist/next.cpp

@@ -29,6 +29,7 @@ namespace libsaria
 			return res;
 		}
 
+		length -= (*cur)->get_length();
 		cur = plist.erase(cur);
 		if (cur == plist.end())
 			cur = plist.begin();

libsaria/playlist/playlist.cpp

@@ -12,6 +12,7 @@ namespace libsaria
 		name = n;
 		flags = f;
 		type = t;
+		length = 0;
 		renderer = NULL;
 		cur = plist.begin();
 	}
@@ -56,6 +57,11 @@ namespace libsaria
 		return plist.size();
 	}
 
+	unsigned int Playlist::get_length()
+	{
+		return length;
+	}
+
 	PlaylistType Playlist::get_type()
 	{
 		return type;

libsaria/track/get.cpp

@@ -39,6 +39,11 @@ namespace libsaria
 		return lenstr;
 	}
 
+	int &Track::get_length()
+	{
+		return length;
+	}
+
 	unsigned int &Track::get_year()
 	{
 		return year;