L2SS-481: Calculate offset when properties change

Added a properties_changed hook that is called on init_device and
Initialise.
This way if properties change we can update values depending on the
proptery values.

tangostationcontrol/tangostationcontrol/devices/lofar_device.py

@@ -81,6 +81,8 @@ class lofar_device(Device, metaclass=DeviceMeta):
         # NOTE: Will delete_device first, if necessary
         Device.init_device(self)
 
+        self.properties_changed()
+        
         self.set_state(DevState.OFF)
         self.set_status("Device is in the OFF state.")
 
@@ -131,6 +133,8 @@ class lofar_device(Device, metaclass=DeviceMeta):
 
         self.configure_for_initialise()
 
+        self.properties_changed()
+
         self.set_state(DevState.STANDBY)
         self.set_status("Device is in the STANDBY state.")
 
@@ -219,6 +223,9 @@ class lofar_device(Device, metaclass=DeviceMeta):
         """Method always executed before any TANGO command is executed."""
         pass
 
+    def properties_changed(self):
+        pass
+
     @command()
     @only_in_states([DevState.STANDBY, DevState.ON])
     @DebugIt()

tangostationcontrol/tangostationcontrol/devices/recv.py

@@ -158,9 +158,8 @@ class RECV(opcua_device):
     # --------
     # overloaded functions
     # --------
-    def configure_for_initialise(self):
-        super().configure_for_initialise()
-
+    def properties_changed(self):
+        super().properties_changed()
         self.HBAT_bf_delay_offset = numpy.mean(self.HBAT_bf_delay_step_delays)
 
     # --------