microscope.gui.CameraWidget Class Reference

Inheritance diagram for microscope.gui.CameraWidget:

Public Member Functions
None	__init__ (self, microscope.abc.Camera device, *args, **kwargs)
None	updateEnableState (self)
None	displayData (self, numpy.ndarray data)

Public Attributes
	displayData
	updateEnableState

Protected Attributes
	_device = device
	_imager = _Imager(self._device)
	_view = QtWidgets.QLabel(parent=self)
	_enable_check = QtWidgets.QCheckBox("Enabled", parent=self)
	_exposure_box = QtWidgets.QDoubleSpinBox(parent=self)
	_snap_button = QtWidgets.QPushButton("Snap", parent=self)

Detailed Description

Display camera

Definition at line 180 of file gui.py.

Constructor & Destructor Documentation

__init__()

None microscope.gui.CameraWidget.__init__	(		self,
		microscope.abc.Camera	device,
		*	args,
		**	kwargs )

Definition at line 183 of file gui.py.

    def __init__(self, device: microscope.abc.Camera, *args, **kwargs) -> None:
        super().__init__(*args, **kwargs)
        self._device = device
        self._imager = _Imager(self._device)
        self._imager.imageAcquired.connect(self.displayData)
 
        self._view = QtWidgets.QLabel(parent=self)
        self.displayData(
            numpy.zeros(self._device.get_sensor_shape(), dtype=numpy.uint8)
        )
 
        self._enable_check = QtWidgets.QCheckBox("Enabled", parent=self)
        self._enable_check.stateChanged.connect(self.updateEnableState)
 
        self._exposure_box = QtWidgets.QDoubleSpinBox(parent=self)
        self._exposure_box.setSuffix(" sec")
        self._exposure_box.setSingleStep(0.1)
        self._exposure_box.valueChanged.connect(self._device.set_exposure_time)
 
        self._snap_button = QtWidgets.QPushButton("Snap", parent=self)
        self._snap_button.clicked.connect(self._imager.snap)
 
        self.updateEnableState()
 
        layout = QtWidgets.QVBoxLayout()
        controls_row = QtWidgets.QHBoxLayout()
        for widget in [
            self._enable_check,
            self._exposure_box,
            self._snap_button,
        ]:
            controls_row.addWidget(widget)
        layout.addLayout(controls_row)
        layout.addWidget(self._view)
        self.setLayout(layout)
 

Member Function Documentation

displayData()

None microscope.gui.CameraWidget.displayData	(		self,
		numpy.ndarray	data )

Definition at line 236 of file gui.py.

    def displayData(self, data: numpy.ndarray) -> None:
        np_to_qt = {
            numpy.dtype("uint8"): QtGui.QImage.Format_Grayscale8,
            numpy.dtype("uint16"): QtGui.QImage.Format_Grayscale16,
        }
        qt_img = QtGui.QImage(
            data.tobytes(), *data.shape, np_to_qt[data.dtype]
        )
        self._view.setPixmap(QtGui.QPixmap.fromImage(qt_img))
 
 

updateEnableState()

None microscope.gui.CameraWidget.updateEnableState

(

self

)

Update UI and camera state after enable check box

Definition at line 219 of file gui.py.

    def updateEnableState(self) -> None:
        """Update UI and camera state after enable check box"""
        if self._enable_check.isChecked():
            self._device.enable()
        else:
            self._device.disable()
 
        if self._enable_check.isChecked() != self._device.get_is_enabled():
            self._enable_check.setChecked(self._device.get_is_enabled())
            _logger.error(
                "failed to %s camera",
                "enable" if self._enable_check.isChecked() else "disable",
            )
 
        self._snap_button.setEnabled(self._device.get_is_enabled())
        self._exposure_box.setEnabled(self._device.get_is_enabled())
 

Member Data Documentation

_device

microscope.gui.CameraWidget._device = device

protected

Definition at line 185 of file gui.py.

_enable_check

microscope.gui.CameraWidget._enable_check = QtWidgets.QCheckBox("Enabled", parent=self)

protected

Definition at line 194 of file gui.py.

_exposure_box

microscope.gui.CameraWidget._exposure_box = QtWidgets.QDoubleSpinBox(parent=self)

protected

Definition at line 197 of file gui.py.

_imager

microscope.gui.CameraWidget._imager = _Imager(self._device)

protected

Definition at line 186 of file gui.py.

_snap_button

microscope.gui.CameraWidget._snap_button = QtWidgets.QPushButton("Snap", parent=self)

protected

Definition at line 202 of file gui.py.

_view

microscope.gui.CameraWidget._view = QtWidgets.QLabel(parent=self)

protected

Definition at line 189 of file gui.py.

displayData

microscope.gui.CameraWidget.displayData

Definition at line 187 of file gui.py.

updateEnableState

microscope.gui.CameraWidget.updateEnableState

Definition at line 195 of file gui.py.

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The documentation for this class was generated from the following file:

• BioImager/PythonMicroscope/microscope/gui.py