PyQt5 clock in python programming

 

# created by Ahvi  

# importing libraries

from email.mime import application

from PyQt5.QtWidgets import *

from PyQt5 import QtCore, QtGui

from PyQt5.QtGui import *

from PyQt5.QtCore import *

import sys

# creating a clock class

class Clock(QMainWindow):

    # constructor

    def __init__(self):

        super().__init__()

        # creating a timer object

        timer = QTimer(self)

        # adding action to the timer

        # update the whole code

        timer.timeout.connect(self.update)

        # setting start time of timer i.e 1 second

        timer.start(1000)

        # setting window title

        self.setWindowTitle('Clock')

        # setting window geometry

        self.setGeometry(200, 200, 300, 300)

        # setting background color to the window

        self.setStyleSheet("background : black;")

        # creating hour hand

        self.hPointer = QtGui.QPolygon([QPoint(6, 7),

                                        QPoint(-6, 7),

                                        QPoint(0, -50)])

        # creating minute hand

        self.mPointer = QPolygon([QPoint(6, 7),

                                  QPoint(-6, 7),

                                  QPoint(0, -70)])

        # creating second hand

        self.sPointer = QPolygon([QPoint(1, 1),

                                  QPoint(-1, 1),

                                  QPoint(0, -90)])

        # colors

        # color for minute and hour hand

        self.bColor = Qt.cyan

        # color for second hand

        self.sColor = Qt.red

    # method for paint event

    def paintEvent(self, event):

        # getting minimum of width and height

        # so that clock remain square

        rec = min(self.width(), self.height())

        # getting current time

        tik = QTime.currentTime()

        # creating a painter object

        painter = QPainter(self)

        # method to draw the hands

        # argument : color rotation and which hand should be pointed

        def drawPointer(color, rotation, pointer):

            # setting brush

            painter.setBrush(QBrush(color))

            # saving painter

            painter.save()

            # rotating painter

            painter.rotate(rotation)

            # draw the polygon i.e hand

            painter.drawConvexPolygon(pointer)

            # restore the painter

            painter.restore()

        # tune up painter

        painter.setRenderHint(QPainter.Antialiasing)

        # translating the painter

        painter.translate(self.width() / 2, self.height() / 2)

        # scale the painter

        painter.scale(rec / 200, rec / 200)

        # set current pen as no pen

        painter.setPen(QtCore.Qt.NoPen)

        # draw each hand

        drawPointer(

            self.bColor, (30 * (tik.hour() + tik.minute() / 60)), self.hPointer)

        drawPointer(

            self.bColor, (6 * (tik.minute() + tik.second() / 60)), self.mPointer)

        drawPointer(self.sColor, (6 * tik.second()), self.sPointer)

        # drawing background

        painter.setPen(QPen(self.bColor))

        # for loop

        for i in range(0, 60):

            # drawing background lines

            if (i % 5) == 0:

                painter.drawLine(87, 0, 97, 0)

            # rotating the painter

            painter.rotate(6)

        # ending the painter

        painter.end()

if __name__ == '__main__':

    app = QApplication(sys.argv)

# creating a clock object

win = Clock()

# show

win.show()

exit(app.exec_())