ocarina: Added a queue page

Eventually it will show the list of queued songs.  For now I just add an
unused page.

include/ocarina/queue.h

@@ -0,0 +1,14 @@
+#ifndef OCARINA_QUEUE_H
+#define OCARINA_QUEUE_H
+
+namespace ocarina
+{
+	namespace queue
+	{
+
+		void init();
+
+	}
+};
+
+#endif /* OCARINA_QUEUE_H */

ocarina/ocarina.cpp

@@ -6,6 +6,7 @@
 #include <ocarina/settings.h>
 #include <ocarina/window.h>
 #include <ocarina/library.h>
+#include <ocarina/queue.h>
 
 #include <libsaria/audio.h>
 #include <libsaria/libsaria.h>
@@ -54,6 +55,7 @@ namespace ocarina
 	{
 		window_init("Ocarina " + vers_str(), full_path("images/ocarina.png"));
 		window_add(get_tabs());
+		ocarina::queue::init();
 		ocarina::library::init();
 		settings_init();
 		idle_add();

ocarina/queue.cpp

@@ -0,0 +1,23 @@
+
+#include <ocarina/queue.h>
+#include <ocarina/body.h>
+#include <ocarina/gtk.h>
+#include <ocarina/songlist.h>
+
+#include <list>
+using namespace std;
+
+static SongList queue_list;
+static struct SongListFuncs queue_funcs;
+static list <MenuItem> queue_menu;
+
+namespace ocarina
+{
+
+	void queue::init()
+	{
+		queue_list.init("Queue", &queue_funcs, &queue_menu);
+		add_page(queue_list.get_label(), queue_list.get_window(), true);
+	}
+
+};