fix(PreviewSignal): use dotted name instead of signal name

ophyd_devices/sim/sim_test_devices.py

@@ -322,7 +322,9 @@ class SimCameraWithStageStatus(SimCamera):
 class SimCameraWithPSIComponents(SimCamera):
     """Test Device for PSIComponents"""
 
-    preview_2d = Cpt(PreviewSignal, ndim=2, doc="2D preview signal", num_rot90=2, transpose=True)
+    preview_2d = Cpt(
+        PreviewSignal, ndim=2, doc="2D preview signal", num_rotation_90=2, transpose=True
+    )
     preview_1d = Cpt(PreviewSignal, ndim=1, doc="1D preview signal")
     file_event = Cpt(FileEventSignal, doc="File event signal")
     progress = Cpt(ProgressSignal, doc="Progress signal")

ophyd_devices/utils/bec_signals.py

@@ -315,7 +315,7 @@ class PreviewSignal(BECMessageSignal):
         *,
         name: str,
         ndim: Literal[1, 2],
-        num_rot90: Literal[0, 1, 2, 3] = 0,
+        num_rotation_90: Literal[0, 1, 2, 3] = 0,
         transpose: bool = False,
         value: dict | None = None,
         **kwargs,
@@ -334,7 +334,11 @@ class PreviewSignal(BECMessageSignal):
             value=value,
             bec_message_type=messages.DevicePreviewMessage,
             kind=Kind.omitted,
-            signal_metadata={"ndim": ndim, "num_rot90": num_rot90, "transpose": transpose},
+            signal_metadata={
+                "ndim": ndim,
+                "num_rotation_90": num_rotation_90,
+                "transpose": transpose,
+            },
             **kwargs,
         )
 
@@ -356,18 +360,20 @@ class PreviewSignal(BECMessageSignal):
             value (list | np.ndarray | dict | self._bec_message_type): The preview data. Must be 1D.
             metadata (dict | None): Additional metadata. If dict or self._bec_message_type is passed, it will be ignored.
         """
+        signal_name = self.dotted_name or self.name
+        device_name = self.parent.name
         if isinstance(value, self._bec_message_type):
             return super().put(value, **kwargs)
         if isinstance(value, dict):
-            value["device"] = self.parent.name
-            value["signal"] = self.name
+            value["device"] = device_name
+            value["signal"] = signal_name
             return super().put(value, **kwargs)
-        device = self.parent.name
+
         if isinstance(value, list):
             value = np.array(value)
         try:
             msg = self._bec_message_type(
-                data=value, device=device, signal=self.name, metadata=metadata
+                data=value, device=device_name, signal=signal_name, metadata=metadata
             )
         except ValidationError as exc:
             raise ValueError(f"Error setting signal {self.name}: {exc}") from exc

tests/test_utils.py

@@ -335,7 +335,7 @@ def test_utils_preview_1d_signal():
             "source": "BECMessageSignal:preview_1d_signal",
             "dtype": "DevicePreviewMessage",
             "shape": [],
-            "signal_metadata": {"ndim": 1, "num_rot90": 0, "transpose": False},
+            "signal_metadata": {"ndim": 1, "num_rotation_90": 0, "transpose": False},
         }
     }
     # Put works with Message
@@ -387,7 +387,7 @@ def test_utils_preview_2d_signal():
             "source": "BECMessageSignal:preview_2d_signal",
             "dtype": "DevicePreviewMessage",
             "shape": [],
-            "signal_metadata": {"ndim": 2, "num_rot90": 0, "transpose": False},
+            "signal_metadata": {"ndim": 2, "num_rotation_90": 0, "transpose": False},
         }
     }
     # Put works with Message