libsaria: Turn the library::Renderer into a library::Driver

This will provide a 2-way notification system, rather than just going
from libsaria to the UI.

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

include/libsaria/library.h

@@ -14,15 +14,14 @@ namespace libsaria
 			string path;
 		};
 
-		class Renderer {
+		class Driver {
 			public:
-				Renderer();
-				~Renderer();
+				Driver();
+				~Driver();
+
+				void add_path(string);
 				virtual void path_added(Path *) = 0;
 		};
-		void set_renderer(Renderer *);
-
-		void add_path(string);
 
 		/*namespace iter
 		{

libsaria/library/library.cpp

@@ -12,7 +12,6 @@ using namespace std;
 #include <libsaria/stack.h>*/
 
 static list<struct libsaria::library::Path> path_list;
-static libsaria::library::Renderer *renderer;
 /*list<libsaria::LibraryPath> path_list;
 libsaria::Playlist lib_playlist(PL_RANDOM | PL_SEQUENTIAL | PL_FILTER);
 static map<sid_t, libsaria::Track *> lookup_map;
@@ -36,9 +35,12 @@ static void do_update(libsaria::LibraryPath *path):
 namespace libsaria
 {
 
-	void library::set_renderer(Renderer *render)
+	library::Driver::Driver()
+	{
+	}
+
+	library::Driver::~Driver()
 	{
-		renderer = render;
 	}
 /*
 	void library::init()
@@ -78,13 +80,12 @@ namespace libsaria
 		trigger_callback(LIBRARY_REFRESH);
 	}
 */
-	void library::add_path(string dir)
+	void library::Driver::add_path(string dir)
 	{
 		struct Path path;
 		path.path = dir;
 		path_list.push_back(path);
-		if (renderer)
-			renderer->path_added(&path);
+		path_added(&path);
 	}
 /*
 	void library::remove_path(string dir)

libsaria/library/renderer.cpp

@@ -1,21 +0,0 @@
-// Copyright (c) 2011 Bryan Schumaker.
-
-#include <libsaria/library.h>
-
-namespace libsaria
-{
-
-	namespace library
-	{
-
-		Renderer::Renderer()
-		{
-		}
-
-		Renderer::~Renderer()
-		{
-		}
-
-	}; /* Namespace: library */
-
-}; /* Namespace: libsaria */

ocarina/body/library.cpp

@@ -5,12 +5,24 @@
 #include <ocarina/button.h>
 #include <ocarina/body.h>
 
+class LibraryDriver : public libsaria::library::Driver {
+	public:
+		void path_added(libsaria::library::Path *);
+};
+
+static LibraryDriver driver;
+
+void LibraryDriver::path_added(libsaria::library::Path *path)
+{
+	println("Path added: " + path->path);
+}
+
 static void on_click_add(GtkWidget *b, GdkEvent *e, gpointer d)
 {
 	string dir = ocarina::choose_dir();
 	if (dir != "") {
 		println("Scanning dir: " + dir);
-		libsaria::library::add_path(dir);
+		driver.add_path(dir);
 	}
 }