GUI: camera_image.py change colour of beam marker based on shutter status

gui/src/aaregui/widgets/camera_image.py

@@ -66,6 +66,7 @@ class SampleCameraImageLabel(QGraphicsView):
     ):
         super().__init__(parent)
 
+        self.__shutter = None
         self.__raster_mgr = raster
         self.__state = SampleCameraImageState.IDLE
         self.__session_state: SessionsStateEnum | None = None
@@ -435,6 +436,9 @@ class SampleCameraImageLabel(QGraphicsView):
             self.__session_state = new_session_state
             self.update()
 
+        if s.bl.shutter_open != self.__shutter:
+            self.__shutter = s.bl.shutter_open
+
         if s.busy != self.__is_daq_busy:
             self.__is_daq_busy = s.busy
             self.update()
@@ -555,6 +559,10 @@ class SampleCameraImageLabel(QGraphicsView):
 
         if self.__state == SampleCameraImageState.BEAM_MARKING:
             painter.setPen(QPen(QColor(102, 51, 153), 3, Qt.PenStyle.SolidLine))
+
+        elif self.__shutter:
+            painter.setPen(QPen(QColor(0, 255, 0), 3, Qt.PenStyle.SolidLine))
+
         elif self.__is_daq_busy is True:
             # Use red color to indicate busy state
             painter.setPen(QPen(QColor(255, 0, 0), 3, Qt.PenStyle.SolidLine))