+ label = gtk.Label()
+ label.set_text('Begin:')
+ self.markers.pack_start(label, True)
+
+ self.begin = gtk.SpinButton()
+ self.begin.connect('output', self.on_spinner_output)
+ self.markers.pack_start(self.begin, True)
+
+ label = gtk.Label()
+ label.set_text('End:')
+ self.markers.pack_start(label, True)
+
+ self.end = gtk.SpinButton()
+ self.end.connect('output', self.on_spinner_output)
+ self.markers.pack_start(self.end, True)
+
+ label = gtk.Label()
+ label.set_text('Length:')
+ self.markers.pack_start(label, True)
+
+ self.length = gtk.SpinButton()
+ self.length.connect('output', self.on_spinner_output)
+ self.markers.pack_start(self.length, True)
+
+ self.markers.show_all()
+