Implemented change of spectrometer.

src/nqrduck_spectrometer/base_spectrometer.py

@@ -1,7 +1,9 @@
+from PyQt5.QtCore import pyqtSignal
 from nqrduck.module.module import Module
 
 class BaseSpectrometer(Module):
     """Base class for all spectrometers. All spectrometers should inherit from this class."""
+    change_spectrometer = pyqtSignal(str)
 
     def __init__(self, model, view, controller):
         super().__init__(model, None, controller)
@@ -17,3 +19,7 @@ class BaseSpectrometer(Module):
     def start_measurement(self):
         """Starts the measurement."""
         raise NotImplementedError
+    
+    def set_active(self):
+        """Sets the spectrometer as the active spectrometer."""
+        self.change_spectrometer.emit(self._model.name)

src/nqrduck_spectrometer/view.py

@@ -1,5 +1,6 @@
 import logging
 from PyQt5.QtWidgets import QWidget, QToolButton, QToolBar, QAction, QMenu
+from PyQt5.QtCore import pyqtSlot, pyqtSignal
 from nqrduck.module.module_view import ModuleView
 from .widget import Ui_Form
 
@@ -25,6 +26,7 @@ class SpectrometerView(ModuleView):
 
     def on_spectrometer_added(self, module):
         """This method changes the active spectrometer to the one that was just added."""
+        module.change_spectrometer.connect(self.on_menu_button_clicked)
         self.on_spectrometer_widget_changed(module._inner_view)
 
     def create_menu_entry(self):
@@ -36,11 +38,13 @@ class SpectrometerView(ModuleView):
         for spectrometer_name, spectrometer_module in self._module.model._available_spectrometers.items():
             logger.debug("Adding module to menu: %s", spectrometer_name)
             select_action = QAction(spectrometer_module.model.toolbar_name, menu_item)
-            select_action.triggered.connect(lambda: self.on_menu_button_clicked(spectrometer_name))
+            select_action.triggered.connect(spectrometer_module.set_active)
             actions.append(select_action)
         
         self.add_menubar_item.emit("Hardware", actions)
 
+    @pyqtSlot(str)
     def on_menu_button_clicked(self, spectrometer_name):
         logger.debug("Active module changed to: %s", spectrometer_name)
         self._module.model.active_spectrometer = self._module.model.available_spectrometers[spectrometer_name]
+