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"""
motion_capture/camera_panel.py
CameraPanel for AddDeviceDialog — shows selected camera info and builds
a CameraDevice when the user clicks "Add Device".
Camera discovery and simulation toggle are handled by AddDeviceDialog.
"""
from __future__ import annotations
from PyQt6.QtCore import QThread, pyqtSignal
from PyQt6.QtWidgets import QLabel, QVBoxLayout, QWidget
class CameraScanThread(QThread):
cameras_found = pyqtSignal(list) # list of (index: int, label: str)
def run(self):
results = []
try:
import cv2
for i in range(6):
cap = cv2.VideoCapture(i)
if cap.isOpened():
ret, _ = cap.read()
if ret:
w = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
h = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
results.append((i, f"Camera {i} ({w}×{h})"))
cap.release()
except ImportError:
pass
self.cameras_found.emit(results)
class CameraPanel(QWidget):
"""Config panel for Camera device in AddDeviceDialog."""
def __init__(self):
super().__init__()
self._selected_index: int = 0
self._simulate: bool = False
lay = QVBoxLayout(self)
lay.setContentsMargins(0, 4, 0, 4)
lay.setSpacing(8)
self._selected_lbl = QLabel("No camera selected — scan above and click a camera")
self._selected_lbl.setObjectName("traceSource")
self._selected_lbl.setWordWrap(True)
lay.addWidget(self._selected_lbl)
note = QLabel(
"Requires OpenCV: pip install opencv-python\n"
"Use Simulation mode if no camera is available."
)
note.setObjectName("traceSource")
note.setWordWrap(True)
lay.addWidget(note)
lay.addStretch()
def is_valid(self) -> bool:
return True
def set_simulate(self, simulate: bool):
self._simulate = simulate
def set_camera_index(self, index: int):
self._selected_index = index
self._selected_lbl.setText(f"Selected: Camera {index}")
def build_device(self, device_id: str):
from device import CameraDevice
return CameraDevice(
device_id=device_id,
camera_index=self._selected_index,
simulate=self._simulate,
)
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