libsaria: Add songs to the queue

It takes a list of song ids and adds them to a deque.  The UI can then
iterate over each ID and query the size.

include/libsaria/callback.h

@@ -8,6 +8,7 @@ enum callback_t {
 	TRACK_LOADED,
 	IDLE_TASK_QUEUED,
 	LIBRARY_REFRESH,
+	QUEUE_REFRESH,
 	REFILTER,
 };
 

include/libsaria/queue.h

@@ -1,7 +1,7 @@
 #ifndef LIBSARIA_QUEUE_H
 #define LIBSARIA_QUEUE_H
 
-#include <libsaria/track.h>
+#include <libsaria/model.h>
 #include <list>
 using namespace std;
 
@@ -11,6 +11,8 @@ namespace libsaria
 	{
 
 		void add_ids(list<ino_t> &);
+		void for_each(SourceModel *);
+		unsigned int size();
 
 	}
 }

libsaria/library/list.cpp

@@ -156,15 +156,12 @@ namespace libsaria
 		}
 	}
 
-	bool library::get_info(ino_t &id, void (*func)(Track &))
+	TrackTag *library::get_info(ino_t &id)
 	{
 		list<TrackTag *>::iterator it;
-		if (find_id(id, it)) {
-			Track tag(*it);
-			func(tag);
-			return true;
-		}
-		return false;
+		if (find_id(id, it))
+			return *it;
+		return NULL;
 	}
 
 	void library::next()

libsaria/queue/queue.cpp

@@ -4,6 +4,8 @@
 using namespace std;
 
 #include <libsaria/queue.h>
+#include <libsaria/library.h>
+#include <libsaria/callback.h>
 
 static deque<ino_t> playqueue;
 
@@ -14,7 +16,23 @@ namespace libsaria
 	{
 		playqueue.insert(playqueue.end(), ids.begin(), ids.end());
 		print("Queue size: ");
-		println(playqueue.size());
+		trigger_callback(QUEUE_REFRESH);
+	}
+
+	void queue::for_each(SourceModel *model)
+	{
+		deque<ino_t>::iterator it;
+		for (it = playqueue.begin(); it != playqueue.end(); it++)
+		{
+			TrackTag *tag = libsaria::library::get_info(*it);
+			Track track = Track(tag);
+			model->insert(track);
+		}
+	}
+
+	unsigned int queue::size()
+	{
+		return playqueue.size();
 	}
 
 } /* Namespace: libsaria */