use nag screen

git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@4193 d708f5d6-7413-0410-9779-e7cbd77b26cf

gtk2_ardour/SConscript

@@ -192,6 +192,7 @@ marker_view.cc
 midi_port_dialog.cc
 mixer_strip.cc
 mixer_ui.cc
+nag.cc
 new_session_dialog.cc
 option_editor.cc
 opts.cc

gtk2_ardour/export_dialog.cc

@@ -43,6 +43,7 @@
 #include "ardour_ui.h"
 #include "public_editor.h"
 #include "keyboard.h"
+#include "nag.h"
 
 #include "i18n.h"
 
@@ -1008,6 +1009,13 @@ ExportDialog::do_export ()
 	
   	progress_connection.disconnect ();
 	end_dialog ();
+
+	NagScreen* ns = NagScreen::maybe_nag (_("export"));
+
+	if (ns) {
+		ns->nag ();
+		delete ns;
+	}
 }
 	
 void