sweep feature added

laser_control/gui/worker.py

@@ -12,6 +12,7 @@ from laser_control import (
     DeviceNotRespondingError,
     LaserController,
 )
+from laser_control.models import SweepSettings, SweepTarget
 
 
 class ControllerWorker(QObject):
@@ -117,6 +118,16 @@ class ControllerWorker(QObject):
             )
         )
 
+    @pyqtSlot(object)
+    def apply_sweep(self, settings: object) -> None:
+        """Start or stop a firmware staircase sweep."""
+        self._run_command(
+            lambda: (
+                self._ensure_connected(),
+                self._apply_sweep_impl(settings),
+            )
+        )
+
     @pyqtSlot(object)
     def save_profile(self, request: object) -> None:
         """Save the current GUI configuration to the device SD card."""
@@ -292,6 +303,19 @@ class ControllerWorker(QObject):
         )
         self._emit_status()
 
+    def _apply_sweep_impl(self, settings: SweepSettings) -> None:
+        self._controller.configure_sweep(settings)
+        output = "STM32 DAC" if settings.target == SweepTarget.STM32_DAC else "Laser 2 current"
+        if settings.enabled:
+            self.log_message.emit(
+                "INFO",
+                f"{output} sweep started: codes {settings.min_code}..{settings.max_code} "
+                f"step {settings.step_code}, {settings.step_period_us} us/step, pause {settings.pause_ms} ms",
+            )
+        else:
+            self.log_message.emit("INFO", f"{output} sweep stopped")
+        self._emit_status()
+
     def _save_profile_impl(self, request: object) -> None:
         self._controller.save_profile_to_sd(request)
         profile_name = getattr(request, "profile_name", "<unnamed>")