ocarina: Select a directory to scan

This directory will eventually be scanned and added to the library.
Right now I just print it to the screen.

include/ocarina/chooser.h

@@ -5,5 +5,6 @@
 using namespace std;
 
 string ocarina_choose_file();
+string ocarina_choose_dir();
 
 #endif

ocarina/chooser.cpp

@@ -26,3 +26,8 @@ string ocarina_choose_file()
 {
 	return ocarina_generic_chooser(GTK_FILE_CHOOSER_ACTION_OPEN);
 }
+
+string ocarina_choose_dir()
+{
+	return ocarina_generic_chooser(GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER);
+}

ocarina/settings/library.cpp

@@ -1,14 +1,18 @@
 
 #include <ocarina/settings.h>
+#include <ocarina/chooser.h>
 #include <ocarina/button.h>
 #include <ocarina/gtk.h>
 
+#include <libsaria/print.h>
+
 /* This is a gtk vbox */
 static GtkWidget *library_settings = NULL;
 
 static void on_click_add(GtkWidget *b, GdkEvent *e, gpointer d)
 {
-
+	string dir = ocarina_choose_dir();
+	print("Scanning dir: " + dir);
 }
 
 static GtkWidget *make_add_button()