mirror of https://github.com/m-labs/artiq
81 lines
2.5 KiB
Python
Executable File
81 lines
2.5 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
from PyQt5 import QtWidgets, QtCore, QtGui
|
|
from artiq.applets.simple import SimpleApplet
|
|
|
|
|
|
class QResponsiveLCDNumber(QtWidgets.QLCDNumber):
|
|
doubleClicked = QtCore.pyqtSignal()
|
|
|
|
def mouseDoubleClickEvent(self, event):
|
|
self.doubleClicked.emit()
|
|
|
|
|
|
class QCancellableLineEdit(QtWidgets.QLineEdit):
|
|
editCancelled = QtCore.pyqtSignal()
|
|
|
|
def keyPressEvent(self, event):
|
|
if event.key() == QtCore.Qt.Key_Escape:
|
|
self.editCancelled.emit()
|
|
else:
|
|
super().keyPressEvent(event)
|
|
|
|
|
|
class NumberWidget(QtWidgets.QStackedWidget):
|
|
def __init__(self, args, req):
|
|
QtWidgets.QStackedWidget.__init__(self)
|
|
self.dataset_name = args.dataset
|
|
self.req = req
|
|
|
|
self.lcd_widget = QResponsiveLCDNumber()
|
|
self.lcd_widget.setDigitCount(args.digit_count)
|
|
self.lcd_widget.doubleClicked.connect(self.start_edit)
|
|
self.addWidget(self.lcd_widget)
|
|
|
|
self.edit_widget = QCancellableLineEdit()
|
|
self.edit_widget.setValidator(QtGui.QDoubleValidator())
|
|
self.edit_widget.setAlignment(QtCore.Qt.AlignRight)
|
|
self.edit_widget.editCancelled.connect(self.cancel_edit)
|
|
self.edit_widget.returnPressed.connect(self.confirm_edit)
|
|
self.addWidget(self.edit_widget)
|
|
|
|
font = QtGui.QFont()
|
|
font.setPointSize(60)
|
|
self.edit_widget.setFont(font)
|
|
|
|
self.setCurrentWidget(self.lcd_widget)
|
|
|
|
def start_edit(self):
|
|
# QLCDNumber value property contains the value of zero
|
|
# if the displayed value is not a number.
|
|
self.edit_widget.setText(str(self.lcd_widget.value()))
|
|
self.edit_widget.selectAll()
|
|
self.edit_widget.setFocus()
|
|
self.setCurrentWidget(self.edit_widget)
|
|
|
|
def confirm_edit(self):
|
|
value = float(self.edit_widget.text())
|
|
self.req.set_dataset(self.dataset_name, value)
|
|
self.setCurrentWidget(self.lcd_widget)
|
|
|
|
def cancel_edit(self):
|
|
self.setCurrentWidget(self.lcd_widget)
|
|
|
|
def data_changed(self, value, metadata, persist, mods):
|
|
try:
|
|
n = float(value[self.dataset_name])
|
|
except (KeyError, ValueError, TypeError):
|
|
n = "---"
|
|
self.lcd_widget.display(n)
|
|
|
|
|
|
def main():
|
|
applet = SimpleApplet(NumberWidget)
|
|
applet.add_dataset("dataset", "dataset to show")
|
|
applet.argparser.add_argument("--digit-count", type=int, default=10,
|
|
help="total number of digits to show")
|
|
applet.run()
|
|
|
|
if __name__ == "__main__":
|
|
main()
|