Rename to CuraFormulaFunctions

to avoid confusion with "SettingFunction" in Uranium.

cura/Settings/CuraFormulaFunctions.py

@@ -12,10 +12,10 @@ if TYPE_CHECKING:
 
 
 #
-# This class contains all Cura-related custom setting functions. Some functions requires information such as the
-# currently active machine, so this is made into a class instead of standalone functions.
+# This class contains all Cura-related custom functions that can be used in formulas. Some functions requires
+# information such as the currently active machine, so this is made into a class instead of standalone functions.
 #
-class CustomSettingFunctions:
+class CuraFormulaFunctions:
 
     def __init__(self, application: "CuraApplication") -> None:
         self._application = application

cura/Settings/ExtruderManager.py

@@ -373,7 +373,7 @@ class ExtruderManager(QObject):
     #   \return String representing the extruder values
     @pyqtSlot(str, result="QVariant")
     def getInstanceExtruderValues(self, key: str) -> List:
-        return self._application.getCustomSettingFunctions().getValuesInAllExtruders(key)
+        return self._application.getCuraFormulaFunctions().getValuesInAllExtruders(key)
 
     ##  Get the resolve value or value for a given key
     #

cura/Settings/UserChangesModel.py

@@ -42,7 +42,7 @@ class UserChangesModel(ListModel):
     def _update(self):
         application = Application.getInstance()
         machine_manager = application.getMachineManager()
-        custom_setting_functions = application.getCustomSettingFunctions()
+        cura_formula_functions = application.getCuraFormulaFunctions()
 
         item_dict = OrderedDict()
         item_list = []
@@ -77,7 +77,7 @@ class UserChangesModel(ListModel):
 
             # Override "getExtruderValue" with "getDefaultExtruderValue" so we can get the default values
             user_changes = containers.pop(0)
-            default_value_resolve_context = custom_setting_functions.createContextForDefaultValueEvaluation(stack)
+            default_value_resolve_context = cura_formula_functions.createContextForDefaultValueEvaluation(stack)
 
             for setting_key in user_changes.getAllKeys():
                 original_value = None