Example Usage: RawDataView

@log(logger=logger)
def _apply_filter(self, data_filter, channel_data):
   try:
      filter_data_args = (channel_data,)
      self.global_signal.emit('MetaFilter', data_filter, 'filter_data', filter_data_args, 'update_plot_data', ())
      return self.plot_data
   except Exception as e:
      self.logger.error(f"Unable to filter data with {data_filter}: {repr(e)}")
      return channel_data

Detailed Explanation

This function, used in RawDataView, delegates filtering to a subclass of MetaFilter.

Steps:

  1. Emits a global signal to request filtering.

  2. MetaController relays it to MainController.

  3. MainController identifies the correct plugin and executes the call.

  4. Filtered data is sent back and displayed.

This enables fully decoupled, modular plugin communication.

Tip

  • MainController owns both the DataPluginController and Analysis plugins.

  • This makes it the natural mediator for handling global signals.