Motion capture: profile support, FPS config, persistent tracking, window state

Profile integration:
- CameraDevice.get_save_config() serialises camera_index, simulate,
  resolution, fps — cameras now persist in .labdaq profiles
- ProfileManager.register/unregister_device_factory() lets plugins
  register their device classes for profile restoration without
  core → plugin dependency
- MotionCapturePlugin registers CameraDevice factory on load/unload

Camera configuration:
- Add Frame Rate combo to CameraPanel (Default/15/24/30/60/120 fps)
  defaults to 30 fps; flows through to CAP_PROP_FPS on connect
- tracker.start() accepts fps param alongside existing resolution

Tracking persistence:
- CameraTracker.is_running() — checks thread alive state
- MotionCaptureWindow initialises _connected from tracker.is_running()
  so reopening the window resumes the live feed without restarting
  the camera or losing the active tracking state

Window state:
- Plugin saves px_per_mm + camera_idx when window closes
- Reopened window restores saved values and syncs mode/shape UI
  from tracker state via restore_ui_state() (signals blocked to
  avoid resetting tracker)
- Window type changed to Qt.WindowType.Window for independent
  close button on all Linux WMs

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 20 insertions, 3 deletions

diff --git a/plugins/motion_capture/window.py b/plugins/motion_capture/window.py
index bc9a0de..46b8850 100644
--- a/plugins/motion_capture/window.py
+++ b/plugins/motion_capture/window.py
@@ -245,10 +245,9 @@ class MotionCaptureWindow(QWidget):
     closed = pyqtSignal()
 
     def __init__(self, tracker, parent=None):
-        super().__init__(parent, Qt.WindowType.Window | Qt.WindowType.Tool)
+        super().__init__(parent, Qt.WindowType.Window)
         self._tracker   = tracker
-        self._connected = False
-        self._selecting = False   # True while frame is frozen for selection
+        self._selecting = False
 
         self.setWindowTitle("Motion Capture")
         self.setMinimumSize(680, 560)
@@ -256,6 +255,11 @@ class MotionCaptureWindow(QWidget):
 
         self._build()
 
+        # Reflect tracker's actual state — it may already be running
+        self._connected = tracker.is_running()
+        self._sim_badge.setVisible(self._connected and tracker.simulated)
+        self._sync_controls()
+
         self._refresh = QTimer(self)
         self._refresh.timeout.connect(self._update)
         self._refresh.start(33)
@@ -500,6 +504,19 @@ class MotionCaptureWindow(QWidget):
 
     # ── State accessors ────────────────────────────────────────────────────
 
+    def restore_ui_state(self, mode: str, shape: str):
+        """Sync mode/shape UI to tracker state without triggering tracker resets."""
+        self._mode_cb.blockSignals(True)
+        self._shape_cb.blockSignals(True)
+        self._mode_cb.setCurrentIndex(1 if mode == "csrt" else 0)
+        self._shape_cb.setCurrentIndex(1 if shape == "circle" else 0)
+        is_template = mode == "template"
+        self._shape_lbl.setVisible(is_template)
+        self._shape_cb.setVisible(is_template)
+        self._mode_cb.blockSignals(False)
+        self._shape_cb.blockSignals(False)
+        self._feed.set_shape(shape)
+
     def get_camera_index(self) -> int:
         i = self._cam_combo.currentIndex()
         cameras = getattr(self, "_cameras", [])