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"""
ui/device_panel.py — Left sidebar: device list with status indicators.
"""
from PyQt6.QtWidgets import (
QWidget, QVBoxLayout, QHBoxLayout, QLabel,
QPushButton, QScrollArea, QFrame, QSizePolicy,
)
from PyQt6.QtCore import Qt, pyqtSignal, QTimer
from devices.base_device import DeviceStatus
from devices.device_registry import DeviceRegistry
from core.acquisition import AcquisitionEngine
_STATUS_STYLE = {
DeviceStatus.CONNECTED: "color:#22c55e;",
DeviceStatus.SIMULATED: "color:#3b82f6;",
DeviceStatus.DISCONNECTED: "color:#475569;",
DeviceStatus.CONNECTING: "color:#f59e0b;",
DeviceStatus.ERROR: "color:#ef4444;",
}
_STATUS_LABEL = {
DeviceStatus.CONNECTED: "CONNECTED",
DeviceStatus.SIMULATED: "SIMULATED",
DeviceStatus.DISCONNECTED: "OFFLINE",
DeviceStatus.CONNECTING: "CONNECTING",
DeviceStatus.ERROR: "ERROR",
}
class DeviceCard(QFrame):
config_requested = pyqtSignal(str)
def __init__(self, device):
super().__init__()
self.device = device
self.setObjectName("deviceCard")
self._build()
def _build(self):
layout = QVBoxLayout(self)
layout.setContentsMargins(10, 10, 10, 10)
layout.setSpacing(5)
# Header row: icon + name + status dot
hdr = QHBoxLayout()
icon_lbl = QLabel(self.device.info.icon)
icon_lbl.setObjectName("deviceIcon")
hdr.addWidget(icon_lbl)
name_lbl = QLabel(self.device.info.name)
name_lbl.setObjectName("deviceName")
hdr.addWidget(name_lbl, 1)
self._dot = QLabel("●")
self._dot.setStyleSheet(_STATUS_STYLE.get(self.device.status, "color:#475569;") + " font-size:10px;")
hdr.addWidget(self._dot)
layout.addLayout(hdr)
# Device ID
id_lbl = QLabel(self.device.info.device_id)
id_lbl.setObjectName("deviceSub")
layout.addWidget(id_lbl)
# Status text
self._status_lbl = QLabel(_STATUS_LABEL.get(self.device.status, "UNKNOWN"))
style = _STATUS_STYLE.get(self.device.status, "color:#475569;")
self._status_lbl.setStyleSheet(
style + " font-family:'IBM Plex Mono',monospace; font-size:10px; font-weight:700; letter-spacing:1px;"
)
layout.addWidget(self._status_lbl)
# Channel count
n = sum(1 for c in self.device.info.channels if c.enabled)
ch_lbl = QLabel(f"{n} ch · {self.device.info.device_type}")
ch_lbl.setObjectName("deviceChannelCount")
layout.addWidget(ch_lbl)
# Config button
cfg = QPushButton("Configure")
cfg.setObjectName("configButton")
cfg.clicked.connect(lambda: self.config_requested.emit(self.device.info.device_id))
layout.addWidget(cfg)
def refresh(self):
dot_style = _STATUS_STYLE.get(self.device.status, "color:#475569;") + " font-size:10px;"
label_style = _STATUS_STYLE.get(self.device.status, "color:#475569;") + \
" font-family:'IBM Plex Mono',monospace; font-size:10px; font-weight:700; letter-spacing:1px;"
self._dot.setStyleSheet(dot_style)
self._status_lbl.setText(_STATUS_LABEL.get(self.device.status, "UNKNOWN"))
self._status_lbl.setStyleSheet(label_style)
class DevicePanel(QWidget):
config_requested = pyqtSignal(str)
def __init__(self, registry: DeviceRegistry, engine: AcquisitionEngine):
super().__init__()
self.registry = registry
self.engine = engine
self._cards = {}
self._build()
# Refresh status every 2 s
self._timer = QTimer(self)
self._timer.setInterval(2000)
self._timer.timeout.connect(self._refresh_status)
self._timer.start()
def _build(self):
layout = QVBoxLayout(self)
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(0)
hdr = QLabel(" DEVICES")
hdr.setObjectName("panelHeader")
hdr.setMinimumHeight(28)
layout.addWidget(hdr)
scroll = QScrollArea()
scroll.setObjectName("deviceScroll")
scroll.setWidgetResizable(True)
scroll.setHorizontalScrollBarPolicy(Qt.ScrollBarPolicy.ScrollBarAlwaysOff)
self._container = QWidget()
self._inner = QVBoxLayout(self._container)
self._inner.setContentsMargins(8, 8, 8, 8)
self._inner.setSpacing(8)
self._inner.addStretch()
scroll.setWidget(self._container)
layout.addWidget(scroll)
def refresh(self):
for card in self._cards.values():
self._inner.removeWidget(card)
card.deleteLater()
self._cards.clear()
for dev in self.registry.all_instances():
card = DeviceCard(dev)
card.config_requested.connect(self.config_requested.emit)
self._inner.insertWidget(self._inner.count() - 1, card)
self._cards[dev.info.device_id] = card
def _refresh_status(self):
for dev_id, card in self._cards.items():
card.refresh()
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