Applets in Dashboard

GuanQun

Hi guys,
There are only seldom examples of Applets now. What should I do if I want to make a new Applet in Dashboard to show a new GUI designed by PyQt ?

For example, Here is a new GUI made by me:

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(564, 377)
        self.pushButton = QtWidgets.QPushButton(Form)
        self.pushButton.setGeometry(QtCore.QRect(240, 180, 93, 28))
        self.pushButton.setObjectName("pushButton")

        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)

    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.pushButton.setText(_translate("Form", "PushButton"))

And here is an initial example of Applet:

from PyQt5 import QtWidgets
from artiq.applets.simple import SimpleApplet

class NumberWidget(QtWidgets.QLCDNumber):
    def __init__(self, args):
        QtWidgets.QLCDNumber.__init__(self)
        self.setDigitCount(args.digit_count)
        self.dataset_name = args.dataset

    def data_changed(self, data, mods):
        try:
            n = float(data[self.dataset_name][1])
        except (KeyError, ValueError, TypeError):
            n = "---"
        self.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()

What should I do if I want to make a new Applet and let it show the GUI designed by me?

sb10q

Copy the applet example, modify it, and use the appropriate command in the dashboard's applets panel (those are just shell commands) to run your code.

MikoT42

Hello,

I am trying to implement similar thing as @GuanQun - namely, integrating Qt designer class into a widget. (indeed there is still few examples of applets around) Could anyone take a look at the example above and show how to modify NumberWidget class in such a way to accommodate Ui_Form? Thanks!

sb10q

You can convert your Qt Designer file to Python source using pyuic5-tool, then import it in the applet.

sb10q

Then try something like this (not tested):

class NumberWidget(QtWidgets.QDialog):
    def __init__(self):
      QDialog.__init__(self)
      self.ui = UI_Form()
      self.ui.setupUi(self)

Reference: https://doc.bccnsoft.com/docs/PyQt5/designer.html