47125056

design.py

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(398, 398)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit.setGeometry(QtCore.QRect(30, 40, 131, 61))
        self.lineEdit.setText("")
        self.lineEdit.setObjectName("lineEdit")
        self.lineEdit_2 = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit_2.setGeometry(QtCore.QRect(30, 120, 131, 61))
        self.lineEdit_2.setText("")
        self.lineEdit_2.setObjectName("lineEdit_2")
        self.lcdNumber = TimerLCDNumber(self.centralwidget)
        self.lcdNumber.setGeometry(QtCore.QRect(180, 40, 64, 23))
        self.lcdNumber.setObjectName("lcdNumber")
        self.lcdNumber_2 = TimerLCDNumber(self.centralwidget)
        self.lcdNumber_2.setGeometry(QtCore.QRect(180, 120, 64, 23))
        self.lcdNumber_2.setObjectName("lcdNumber_2")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 398, 22))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

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


    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))

from TimerLCDNumber import TimerLCDNumber

if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

main.py

from PyQt5 import QtCore, QtGui, QtWidgets
from design import Ui_MainWindow


class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self, *args, **kwargs):
        QtWidgets.QMainWindow.__init__(self, *args, **kwargs)
        self.setupUi(self)
        self.lineEdit.returnPressed.connect(lambda: self.lcdNumber.setValue(int(self.lineEdit.text())))
        self.lineEdit_2.returnPressed.connect(lambda: self.lcdNumber_2.setValue(int(self.lineEdit_2.text())))
        self.lcdNumber.display(0)
        self.lcdNumber_2.display(0) 


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    w = MainWindow()
    w.show()
    sys.exit(app.exec_())

TimerLCDNumber.py

from PyQt5 import QtCore, QtGui, QtWidgets

class TimerLCDNumber(QtWidgets.QLCDNumber):
    def __init__(self, *args, **kwargs):
        QtWidgets.QLCDNumber.__init__(self, *args, **kwargs)
        self.timer = QtCore.QTimer(self)
        self.timer.setInterval(1000)
        self.timer.timeout.connect(self.onTimeout)
        self.finished = self.value()

    def setValue(self, value):
        self.finished = value
        self.timer.start()

    def onTimeout(self):
        current = self.value()
        if self.finished != current:
            count  = 1 if self.finished > current else -1
            self.display(current + count)
        else:
            self.timer.stop()