def __save_file(self):
     '''Opens file dialog and sets and saves the settings to a ini file.
     '''
     filename = save_file_dialog(self, self.default_folder,
                                 "Save calibration settings file",
                                 "Settings file (*.ini)")
     if filename:
         settings = CalibrationParameters()
         settings.set_settings(self)
         settings.save_settings(filename)
 def __load_file(self):
     '''Opens file dialog and loads and shows selected ini file's values.
     '''
     filename = open_file_dialog(self, self.default_folder,
                                 "Load calibration settings file",
                                 "Settings file (*.ini)")
     if filename:
         settings = CalibrationParameters()
         settings.load_settings(filename)
         settings.show(self)