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bridge

Bridge between asyncio telemetry events and Qt graph widget.

Uses Qt signals to safely cross thread boundaries.

TelemetryGraphBridge #

Bases: QObject

Bridge between asyncio telemetry events and Qt TelemetryView widget.

Uses Qt signals to ensure thread-safe communication between the asyncio event loop and the Qt event loop.

Source code in cogip/tools/firmware_telemetry/graph/bridge.py 
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class TelemetryGraphBridge(QObject):
    """
    Bridge between asyncio telemetry events and Qt TelemetryView widget.

    Uses Qt signals to ensure thread-safe communication between
    the asyncio event loop and the Qt event loop.
    """

    # Signals for thread-safe communication
    signal_telemetry = QtSignal(object)  # TelemetryData
    signal_clear = QtSignal()
    signal_start_recording = QtSignal()
    signal_stop_recording = QtSignal()
    signal_load_config = QtSignal(object)  # TelemetryGraphConfig

    def __init__(self, widget: TelemetryView):
        super().__init__()
        self._widget = widget

        # Connect signals to widget methods
        self.signal_telemetry.connect(self._on_telemetry)
        self.signal_clear.connect(self._on_clear)
        self.signal_start_recording.connect(self._on_start_recording)
        self.signal_stop_recording.connect(self._on_stop_recording)
        self.signal_load_config.connect(self._on_load_config)

    @QtSlot(object)
    def _on_telemetry(self, data: TelemetryData) -> None:
        """Handle telemetry data signal."""
        self._widget.update_telemetry(data)

    @QtSlot()
    def _on_clear(self) -> None:
        """Handle clear signal."""
        self._widget.clear()

    @QtSlot()
    def _on_start_recording(self) -> None:
        """Handle start recording signal."""
        self._widget.start_recording()

    @QtSlot()
    def _on_stop_recording(self) -> None:
        """Handle stop recording signal."""
        self._widget.stop_recording()

    @QtSlot(object)
    def _on_load_config(self, config: TelemetryGraphConfig) -> None:
        """Handle load config signal."""
        self._widget.load_config(config)

    # Public methods called from asyncio context
    def emit_telemetry(self, data: TelemetryData) -> None:
        """Emit telemetry data to the graph (thread-safe)."""
        self.signal_telemetry.emit(data)

    def emit_clear(self) -> None:
        """Emit clear signal to reset curves (thread-safe)."""
        self.signal_clear.emit()

    def emit_start_recording(self) -> None:
        """Start recording telemetry data (thread-safe)."""
        self.signal_start_recording.emit()

    def emit_stop_recording(self) -> None:
        """Stop recording telemetry data (thread-safe)."""
        self.signal_stop_recording.emit()

    def emit_load_config(self, config: TelemetryGraphConfig) -> None:
        """Load a new graph configuration (thread-safe)."""
        self.signal_load_config.emit(config)

emit_clear() #

Emit clear signal to reset curves (thread-safe).

Source code in cogip/tools/firmware_telemetry/graph/bridge.py 
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def emit_clear(self) -> None:
    """Emit clear signal to reset curves (thread-safe)."""
    self.signal_clear.emit()

emit_load_config(config) #

Load a new graph configuration (thread-safe).

Source code in cogip/tools/firmware_telemetry/graph/bridge.py 
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def emit_load_config(self, config: TelemetryGraphConfig) -> None:
    """Load a new graph configuration (thread-safe)."""
    self.signal_load_config.emit(config)

emit_start_recording() #

Start recording telemetry data (thread-safe).

Source code in cogip/tools/firmware_telemetry/graph/bridge.py 
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def emit_start_recording(self) -> None:
    """Start recording telemetry data (thread-safe)."""
    self.signal_start_recording.emit()

emit_stop_recording() #

Stop recording telemetry data (thread-safe).

Source code in cogip/tools/firmware_telemetry/graph/bridge.py 
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def emit_stop_recording(self) -> None:
    """Stop recording telemetry data (thread-safe)."""
    self.signal_stop_recording.emit()

emit_telemetry(data) #

Emit telemetry data to the graph (thread-safe).

Source code in cogip/tools/firmware_telemetry/graph/bridge.py 
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def emit_telemetry(self, data: TelemetryData) -> None:
    """Emit telemetry data to the graph (thread-safe)."""
    self.signal_telemetry.emit(data)