If the gconf var window_halignment be changed, this method will
        be called and will call the move function in guake.

def alignment_changed(self, settings, key, user_data):
        """If the gconf var window_halignment be changed, this method will
        be called and will call the move function in guake.
        """
        RectCalculator.set_final_window_rect(self.settings, self.guake.window)
        self.guake.set_tab_position()
        self.guake.force_move_if_shown()