Implemented loading and saving of settings.

src/nqrduck_spectrometer/base_spectrometer_controller.py

@@ -1,5 +1,6 @@
 """Base class for all spectrometer controllers."""
 
+import ast
 from nqrduck.module.module_controller import ModuleController
 
 
@@ -10,6 +11,47 @@ class BaseSpectrometerController(ModuleController):
         """Initializes the spectrometer controller."""
         super().__init__(module)
 
+    def save_settings(self, path: str) -> None:
+        """Saves the settings of the spectrometer."""
+        # We get the different settings objects from the model
+        settings = self.module.model.settings
+
+        json = {}
+        json["name"] = self.module.model.name
+
+        for category in settings.keys():
+            for setting in settings[category]:
+                json[setting.name] = setting.value
+
+        with open(path, "w") as f:
+            f.write(str(json))
+
+    def load_settings(self, path: str) -> None:
+        """Loads the settings of the spectrometer."""
+        with open(path, "r") as f:
+            json = f.read()
+
+        # string to dict
+        json = ast.literal_eval(json)
+
+        module_name = self.module.model.name
+        json_name = json["name"]
+
+        # For some reason the notification is shown twice
+        if module_name != json_name:
+            message = f"Module: {module_name} not compatible with module specified in settings file: {json_name}. Did you select the correct settings file?"
+            self.module.nqrduck_signal.emit("notification", ["Error", message])
+            return
+
+        settings = self.module.model.settings
+        for category in settings.keys():
+            for setting in settings[category]:
+                if setting.name in json:
+                    setting.value = json[setting.name]
+                else:
+                    message = f"Setting {setting.name} not found in settings file. A change in settings might have broken compatibility."
+                    self.module.nqrduck_signal.emit("notification", ["Error", message])
+
     def start_measurement(self):
         """Starts the measurement.
 

src/nqrduck_spectrometer/base_spectrometer_model.py

@@ -22,6 +22,8 @@ class BaseSpectrometerModel(ModuleModel):
         pulse_parameter_options (OrderedDict) : The pulse parameter options of the spectrometer
     """
 
+    SETTING_FILE_EXTENSION = "setduck"
+
     settings: OrderedDict
     pulse_parameter_options: OrderedDict
 

src/nqrduck_spectrometer/base_spectrometer_view.py

@@ -8,6 +8,7 @@ from PyQt6.QtWidgets import (
     QSizePolicy,
     QSpacerItem,
     QVBoxLayout,
+    QPushButton,
 )
 from nqrduck.module.module_view import ModuleView
 from nqrduck.assets.icons import Logos
@@ -91,3 +92,43 @@ class BaseSpectrometerView(ModuleView):
 
         # Push all the settings to the top of the widget
         self._ui_form.verticalLayout.addStretch(1)
+
+        # Now we add a save and load button to the widget
+        self.button_layout = QHBoxLayout()
+        self.save_button = QPushButton("Save Settings")
+        self.save_button.setIcon(Logos.Save16x16())
+        #self.save_button.setIconSize(self.save_button.size())
+        self.save_button.clicked.connect(self.on_save_button_clicked)
+        self.button_layout.addWidget(self.save_button)
+
+        self.load_button = QPushButton("Load Settings")
+        self.load_button.setIcon(Logos.Load16x16())
+        #self.load_button.setIconSize(self.load_button.size())
+        self.load_button.clicked.connect(self.on_load_button_clicked)
+        self.button_layout.addWidget(self.load_button)
+
+        self._ui_form.verticalLayout.addLayout(self.button_layout)
+
+
+    def on_save_button_clicked(self):
+        """This method is called when the save button is clicked."""
+        logger.debug("Save button clicked")
+        # Open a dialog to save the settings to a file
+        file_manager = self.FileManager(
+            extension=self.module.model.SETTING_FILE_EXTENSION, parent=self
+        )
+        path = file_manager.saveFileDialog()
+        if path:
+            self.module.controller.save_settings(path)
+
+    def on_load_button_clicked(self):
+        """This method is called when the load button is clicked."""
+        logger.debug("Load button clicked")
+        # Open a dialog to load the settings from a file
+        file_manager = self.FileManager(
+            extension=self.module.model.SETTING_FILE_EXTENSION, parent=self
+        )
+        path = file_manager.loadFileDialog()
+        self.module.controller.load_settings(path)
+        if path:
+            self.module.controller.load_settings(path)

src/nqrduck_spectrometer/settings.py

@@ -36,6 +36,7 @@ class Setting(QObject):
             description (str): A description of the setting.
             default: The default value of the setting.
         """
+        self.widget = None
         super().__init__()
         self.name = name
         self.description = description
@@ -87,9 +88,16 @@ class NumericalSetting(Setting):
 
     It can additionally have a minimum and maximum value.
     """
-    def __init__(self, name: str, description: str, default, min_value = None, max_value  = None ) -> None:
+
+    def __init__(
+        self, name: str, description: str, default, min_value=None, max_value=None
+    ) -> None:
         """Create a new numerical setting."""
-        super().__init__(name, self.description_limit_info(description, min_value, max_value), default)
+        super().__init__(
+            name,
+            self.description_limit_info(description, min_value, max_value),
+            default,
+        )
 
     def description_limit_info(self, description: str, min_value, max_value) -> str:
         """Updates the description with the limits of the setting if there are any.
@@ -103,11 +111,11 @@ class NumericalSetting(Setting):
             str: The description of the setting with the limits.
         """
         if min_value is not None and max_value is not None:
-            description += (f"\n (min: {min_value}, max: {max_value})")
+            description += f"\n (min: {min_value}, max: {max_value})"
         elif min_value is not None:
-            description += (f"\n (min: {min_value})")
+            description += f"\n (min: {min_value})"
         elif max_value is not None:
-            description += (f"\n (max: {max_value})")
+            description += f"\n (max: {max_value})"
 
         return description
 
@@ -133,13 +141,19 @@ class FloatSetting(NumericalSetting):
         description: str,
         min_value: float = None,
         max_value: float = None,
-        spin_box: tuple = (False, False)
+        spin_box: tuple = (False, False),
     ) -> None:
         """Create a new float setting."""
+        self.spin_box = spin_box
         super().__init__(name, description, default, min_value, max_value)
 
         if spin_box[0]:
-            self.widget = DuckSpinBox(min_value=min_value, max_value=max_value, slider=spin_box[1], double_box=True)
+            self.widget = DuckSpinBox(
+                min_value=min_value,
+                max_value=max_value,
+                slider=spin_box[1],
+                double_box=True,
+            )
             self.widget.spin_box.setValue(default)
         else:
             self.widget = DuckFloatEdit(min_value=min_value, max_value=max_value)
@@ -169,6 +183,12 @@ class FloatSetting(NumericalSetting):
         self._value = float(value)
         self.settings_changed.emit()
 
+        if self.widget:
+            if self.spin_box[0]:
+                self.widget.spin_box.setValue(self._value)
+            else:
+                self.widget.setText(str(self._value))
+
 
 class IntSetting(NumericalSetting):
     """A setting that is an Integer.
@@ -189,13 +209,15 @@ class IntSetting(NumericalSetting):
         description: str,
         min_value=None,
         max_value=None,
-        spin_box: tuple = (False, False)
+        spin_box: tuple = (False, False),
     ) -> None:
         """Create a new int setting."""
+        self.spin_box = spin_box
         super().__init__(name, description, default, min_value, max_value)
-
-        if spin_box[0]:
-            self.widget = DuckSpinBox(min_value=min_value, max_value=max_value, slider=spin_box[1])
+        if self.spin_box[0]:
+            self.widget = DuckSpinBox(
+                min_value=min_value, max_value=max_value, slider=spin_box[1]
+            )
             self.widget.spin_box.setValue(default)
         else:
             self.widget = DuckIntEdit(min_value=min_value, max_value=max_value)
@@ -225,7 +247,11 @@ class IntSetting(NumericalSetting):
         value = int(float(value))
         self._value = value
         self.settings_changed.emit()
-
+        if self.widget:
+            if self.spin_box[0]:
+                self.widget.spin_box.setValue(value)
+            else:
+                self.widget.setText(str(value))
 
 
 class BooleanSetting(Setting):
@@ -253,6 +279,8 @@ class BooleanSetting(Setting):
     def value(self, value):
         try:
             self._value = bool(value)
+            if self.widget:
+                self.widget.setChecked(self._value)
             self.settings_changed.emit()
         except ValueError:
             raise ValueError("Value must be a bool")
@@ -307,6 +335,8 @@ class SelectionSetting(Setting):
         try:
             if value in self.options:
                 self._value = value
+                if self.widget:
+                    self.widget.setCurrentText(value)
                 self.settings_changed.emit()
             else:
                 raise ValueError("Value must be one of the options")