libsaria: Introduce playlist numbers

To track where in the deck they are.  Displaying and modifying them
comes next...

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

include/libsaria/playlist.h

@@ -32,6 +32,7 @@ namespace libsaria
 
 	class Playlist {
 		private:
+			int number;
 			unsigned int flags;
 			unsigned int length;
 			PlaylistType type;
@@ -64,7 +65,7 @@ namespace libsaria
 
 			virtual Track *next() = 0;
 			string &get_name();
-			void rename(string &);
+			void renumber(int);
 			unsigned int get_size();
 			unsigned int get_length();
 			PlaylistType get_type();

include/libsaria/renderer.h

@@ -16,7 +16,7 @@ namespace libsaria
 			PlaylistRenderer(unsigned int);
 			~PlaylistRenderer();
 			void set_playlist(Playlist *);
-			virtual void renamed(string &);
+			virtual void renumber(int);
 
 			bool is_static();
 			virtual void prepare_for_removal();

libsaria/playlist/deck.cpp

@@ -46,7 +46,7 @@ static void rename_playlists()
 		case PLIST_LIST:
 			new_name = "List (" + itoa(i) + ")";
 		}
-		(*it)->rename(new_name);
+		(*it)->renumber(i);
 		it++;
 	}
 }

libsaria/playlist/playlist.cpp

@@ -10,6 +10,7 @@ namespace libsaria
 	Playlist::Playlist(string n, unsigned int f, PlaylistType t)
 	{
 		name = n;
+		number = -1;
 		flags = f;
 		type = t;
 		length = 0;
@@ -46,10 +47,12 @@ namespace libsaria
 		return name;
 	}
 
-	void Playlist::rename(string &s)
+	void Playlist::renumber(int n)
 	{
-		name = s;
-		RENDER( renamed(name) );
+		if (number == n)
+			return;
+		number = n;
+		RENDER( renumber(number) );
 	}
 
 	unsigned int Playlist::get_size()

libsaria/playlist/renderer.cpp

@@ -20,7 +20,7 @@ namespace libsaria
 		playlist->set_renderer(this);
 	}
 
-	void PlaylistRenderer::renamed(string &s)
+	void PlaylistRenderer::renumber(int)
 	{
 	}