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"""
ui/main_window.py — Main application window.
Layout:
┌──────────────────────────────────────────────────────────┐
│ TOOLBAR [▶ RUN] [⬤ LOG] [＋ Device] 00:00:00 │
├────────────┬───────────────────────────┬─────────────────┤
│ DEVICES │ STRIP CHART (pyqtgraph) │ CHANNELS │
│ (left) │ │ (readouts) │
│ │ ├─────────────────┤
│ │ │ ALARMS │
└────────────┴───────────────────────────┴─────────────────┘
│ status bar │
└──────────────────────────────────────────────────────────┘
"""
from PyQt6.QtWidgets import (
QMainWindow, QWidget, QHBoxLayout, QVBoxLayout,
QSplitter, QStatusBar, QLabel, QPushButton,
QToolBar, QSizePolicy, QMessageBox,
)
from PyQt6.QtCore import Qt, QTimer, pyqtSlot
from devices.analog_input import AnalogInputDevice
from devices.digital_io import DigitalIODevice
from devices.serial_device import SerialDevice
from devices.device_registry import DeviceRegistry
from core.acquisition import AcquisitionEngine
from ui.device_panel import DevicePanel
from ui.strip_chart import StripChartWidget
from ui.readout_panel import ReadoutPanel
from ui.alarm_panel import AlarmPanel
from ui.config_dialog import DeviceConfigDialog
from ui.add_device_dialog import AddDeviceDialog
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowTitle("LabDAQ — Data Acquisition System")
self.setMinimumSize(1360, 820)
self.registry = DeviceRegistry()
self.engine = AcquisitionEngine(poll_interval_ms=100)
self._elapsed = 0
self._running = False
self._init_demo_devices()
self._build_ui()
self._connect_signals()
def _init_demo_devices(self):
ai = AnalogInputDevice(device_id="ai_0", num_channels=4, simulate=True, backend="nidaqmx")
ai.connect()
ard = AnalogInputDevice(device_id="ard_0", num_channels=4, simulate=True, backend="arduino")
ard.connect()
dio = DigitalIODevice(device_id="dio_0", num_inputs=4, num_outputs=4, simulate=True, backend="nidaqmx")
dio.connect()
ser = SerialDevice(device_id="ser_0", num_channels=3, simulate=True)
ser.connect()
for dev in [ai, ard, dio, ser]:
self.registry.add_instance(dev)
self.engine.add_device(dev)
def _build_ui(self):
tb = QToolBar("Main")
tb.setObjectName("mainToolbar")
tb.setMovable(False)
self.addToolBar(tb)
self._run_btn = QPushButton("▶ RUN")
self._run_btn.setObjectName("runButton")
self._run_btn.setCheckable(True)
self._run_btn.clicked.connect(self._toggle_run)
tb.addWidget(self._run_btn)
tb.addSeparator()
self._log_btn = QPushButton("⬤ LOG")
self._log_btn.setObjectName("logButton")
self._log_btn.setCheckable(True)
self._log_btn.setEnabled(False)
self._log_btn.clicked.connect(self._toggle_log)
tb.addWidget(self._log_btn)
tb.addSeparator()
add_btn = QPushButton("＋ Device")
add_btn.setObjectName("addDeviceButton")
add_btn.clicked.connect(self._add_device)
tb.addWidget(add_btn)
spacer = QWidget()
spacer.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Preferred)
tb.addWidget(spacer)
self._time_lbl = QLabel("00:00:00")
self._time_lbl.setObjectName("timeLabel")
tb.addWidget(self._time_lbl)
central = QWidget()
self.setCentralWidget(central)
root = QHBoxLayout(central)
root.setContentsMargins(0, 0, 0, 0)
root.setSpacing(0)
hsplit = QSplitter(Qt.Orientation.Horizontal)
hsplit.setHandleWidth(3)
self._dev_panel = DevicePanel(self.registry, self.engine)
self._dev_panel.setMinimumWidth(210)
self._dev_panel.setMaximumWidth(300)
hsplit.addWidget(self._dev_panel)
self._chart = StripChartWidget(self.engine, self.registry)
hsplit.addWidget(self._chart)
right_widget = QWidget()
right_widget.setMinimumWidth(230)
right_widget.setMaximumWidth(320)
right_lay = QVBoxLayout(right_widget)
right_lay.setContentsMargins(0, 0, 0, 0)
right_lay.setSpacing(0)
vsplit = QSplitter(Qt.Orientation.Vertical)
vsplit.setHandleWidth(3)
self._readout_panel = ReadoutPanel(self.registry)
self._alarm_panel = AlarmPanel()
vsplit.addWidget(self._readout_panel)
vsplit.addWidget(self._alarm_panel)
vsplit.setSizes([500, 300])
right_lay.addWidget(vsplit)
hsplit.addWidget(right_widget)
hsplit.setSizes([230, 880, 260])
root.addWidget(hsplit)
sb = QStatusBar()
self.setStatusBar(sb)
self._status_lbl = QLabel("Ready — simulation mode active")
sb.addWidget(self._status_lbl)
self._log_lbl = QLabel("")
sb.addPermanentWidget(self._log_lbl)
self._clock = QTimer(self)
self._clock.setInterval(1000)
self._clock.timeout.connect(self._tick)
def _connect_signals(self):
self.engine.alarm_triggered.connect(self._on_alarm)
self.engine.new_data.connect(self._readout_panel.on_new_data)
self.engine.new_data.connect(self._chart.on_new_data)
self.engine.log_started.connect(lambda p: self._log_lbl.setText(f"● LOG {p}"))
self.engine.log_stopped.connect(lambda p: self._log_lbl.setText(f"✓ Saved {p}"))
self._dev_panel.config_requested.connect(self._open_config)
def _toggle_run(self, checked: bool):
if checked:
self.engine.start()
self._run_btn.setText("⏹ STOP")
self._log_btn.setEnabled(True)
self._clock.start()
self._status_lbl.setText("Acquiring…")
self._running = True
else:
self.engine.stop()
self._run_btn.setText("▶ RUN")
if self._log_btn.isChecked():
self._log_btn.setChecked(False)
self._log_btn.setEnabled(False)
self._clock.stop()
self._status_lbl.setText("Stopped")
self._running = False
def _toggle_log(self, checked: bool):
if checked:
path = self.engine.start_logging()
self._log_btn.setText("⏹ LOGGING")
self._status_lbl.setText(f"Logging → {path}")
else:
self.engine.stop_logging()
self._log_btn.setText("⬤ LOG")
def _add_device(self):
dlg = AddDeviceDialog(self.registry, self)
if dlg.exec():
dev = dlg.created_device
if dev:
dev.connect()
self.registry.add_instance(dev)
self.engine.add_device(dev)
self._dev_panel.refresh()
self._readout_panel.refresh()
self._chart.refresh()
self._status_lbl.setText(f"Added device: {dev.info.device_id}")
def _open_config(self, device_id: str):
dev = self.registry.get_instance(device_id)
if dev:
DeviceConfigDialog(dev, self).exec()
@pyqtSlot(str, str, float, str)
def _on_alarm(self, dev_id: str, ch_id: str, value: float, kind: str):
self._alarm_panel.add_alarm(dev_id, ch_id, value, kind)
def _tick(self):
self._elapsed += 1
h = self._elapsed // 3600
m = (self._elapsed % 3600) // 60
s = self._elapsed % 60
self._time_lbl.setText(f"{h:02d}:{m:02d}:{s:02d}")
def closeEvent(self, event):
self.engine.stop()
event.accept()
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