Recommendation of analog clock codes using Python

This article summarizes and introduces the code for implementing analog clock using Python. There are three examples in total, and the last two are implemented based on QT. if you have any need, you can refer to the Python recommendation for implementing analog clock code.

# coding=utf8import sys, pygame, math, randomfrom pygame.locals import *from datetime import datetime, date, time  def print_text(font, x, y, text, color=(255,255,255)):  imgtext = font.render(text, True, color)  screen.blit(imgtext, (x,y)) def wrap_angle(angle):  return abs(angle%360) # mainpygame.init()screen = pygame.display.set_mode((600,500))pygame.display.set_caption("CLOCK")font = pygame.font.Font(None, 36)orange = 220,180,0white = 255,255,255yellow = 255,255,0pink = 255,100,100 pos_x = 300pos_y = 250radius = 250angle = 360 # repeating loopwhile True:  for event in pygame.event.get():    if event.type == QUIT:      sys.exit()   keys = pygame.key.get_pressed()  if keys[K_ESCAPE]:    sys.exit()   screen.fill((0,0,100))   # draw circle  pygame.draw.circle(screen, white, (pos_x,pos_y), radius, 6)   # draw the clock number 1-12  for n in range(1,13):    angle = math.radians(n*(360/12)-90)    x = math.cos(angle)*(radius-20)-10    y = math.sin(angle)*(radius-20)-10    print_text(font, pos_x+x, pos_y+y, str(n))   # get the time of day  today = datetime.today()  hours = today.hour%12  minutes = today.minute  seconds = today.second   # draw the hours hand  hour_angle = wrap_angle(hours*(360/12)-90)  hour_angle = math.radians(hour_angle)  hour_x = math.cos(hour_angle)*(radius-80)  hour_y = math.sin(hour_angle)*(radius-80)  target = (pos_x+hour_x, pos_y+hour_y)  pygame.draw.line(screen, pink, (pos_x,pos_y), target, 12)   # draw the minutes hand  min_angle = wrap_angle(minutes*(360/60)-90)  min_angle = math.radians(min_angle)  min_x = math.cos(min_angle)*(radius-60)  min_y = math.sin(min_angle)*(radius-60)  target = (pos_x+min_x, pos_y+min_y)  pygame.draw.line(screen, orange, (pos_x,pos_y), target, 12)   # draw the seconds hand  sec_angle = wrap_angle(seconds*(360/60)-90)  sec_angle = math.radians(sec_angle)  sec_x = math.cos(sec_angle)*(radius-40)  sec_y = math.sin(sec_angle)*(radius-40)  target = (pos_x+sec_x, pos_y+sec_y)  pygame.draw.line(screen, yellow, (pos_x,pos_y), target, 12)   # draw the center  pygame.draw.circle(screen, white, (pos_x,pos_y), 20)   print_text(font, 0, 0, str(hours) + ":" + str(minutes) + ":" + str(seconds))  pygame.display.update()

Another example

Import sysfrom PyQt4 import QtGui, QtCore from kernel import Qtfrom kernel import QPointfrom PyQt4.QtCore import QTimerfrom kernel import QTime from kernel import QPainterfrom kernel import QColor from kernel import QPolygonfrom kernel import SIGNAL as signalclass Clock (QtGui. QWidget): ''' classdoc''' def _ init _ (self): ''' Constructor ''' super (Clock, self ). _ Init _ () self. hourColor = QColor (127, 0,127); self. minuteColor = QColor (0,127,127,191) self. secondColor = QColor (127,127, 0, 120) self. initUI () self. timer = QTimer () self. timer. timeout. connect (self. update) self. timer. start (30) self. show () def handChange (self): self. side = min (self. width (), self. height () self. hand = (max (self. side/200,4), max (self. side/100,8), max (self. side/40, 30) self. hourHand = QP Olympus ([QPoint (self. hand [0], self. hand [1]), QPoint (-self. hand [0], self. hand [1]), QPoint (0,-self. hand [2]) self. minuteHand = QPolygon ([QPoint (self. hand [0], self. hand [1]), QPoint (-self. hand [0], self. hand [1]), QPoint (0,-self. hand [2] * 2)]) self. secondHand = QPolygon ([QPoint (self. hand [0], self. hand [1]), QPoint (-self. hand [0], self. hand [1]), QPoint (0,-self. hand [2] * 3)]) def set_transparency (self, enabled): if enabled: se Lf. setAutoFillBackground (False) else: self. setAttribute (Qt. WA_NoSystemBackground, False) # this method does not seem to work in the following way # pal = QtGui. QPalette () # pal. setColor (QtGui. QPalette. background, QColor (127,127, 10, 120) # self. setPalette (pal) self. setAttribute (Qt. WA_TranslucentBackground, enabled) self. repaint () def initUI (self): self. setGeometry (300,300,300,200) self. setWindowTitle ('Clock ') self. handChange () self. rightButton = False # the following two functions are used together to implement form transparency and pin sizeGrip = QtGui. QSizeGrip (self) self. setWindowFlags (Qt. frameless=whint | Qt. windowStaysOnTopHint | Qt. subWindow) # self. setMouseTracking (True); self. trans = True self. set_transparency (True) quitAction = QtGui.QAction(QtGui.QIcon('quit.png '),' & quit', self) self. connect (quitAction, signal ("triggered ()"), QtGui. qApp. quit) backAction = QtGui. QAction ('& back', self) self. connect (ba CkAction, signal ("triggered ()"), self. backClicked) self. popMenu = QtGui. QMenu () self. popMenu. addAction (quitAction) self. popMenu. addAction (backAction) def resizeEvent (self, e): self. handChange () def backClicked (self): if self. trans = True: self. trans = False self. set_transparency (False) else: self. trans = True self. set_transparency (True) def mouseReleaseEvent (self, e): if self. rightButton = True: se Lf. rightButton = False self. popMenu. popup (e. globalPos () def mouseMoveEvent (self, e): if e. buttons () & Qt. leftButton: self. move (e. globalPos ()-self. dragPos) e. accept () def mousePressEvent (self, e): if e. button () = Qt. leftButton: self. dragPos = e. globalPos ()-self. frameGeometry (). topLeft () e. accept () if e. button () = Qt. rightButton and self. rightButton = False: self. rightButton = True def paintEvent (self, E): time = QTime. currentTime () qp = QPainter () qp. begin (self) qp. setRenderHint (QPainter. antialiasing) # turn on this anti-aliasing function, it will occupy a lot of cpu! Qp. translate (self. width ()/2, self. height ()/2) qp. scale (self. side/200.0, self. side/200.0) qp. setPen (QtCore. qt. noPen) qp. setBrush (self. hourColor) qp. save () qp. rotate (30.0 * (time. hour () + time. minute ()/60.0) qp. drawConvexPolygon (self. hourHand) qp. restore () qp. setPen (self. hourColor) for I in range (12): qp. drawLine (88, 0, 96, 0) qp. rotate (1, 30.0) qp. setPen (QtCore. qt. noPen) qp. setBrush (self. minuteColor) qp. save () qp. rotate (6.0 * (time. minute () + (time. second () + time. msec ()/1000.0)/60.0) qp. drawConvexPolygon (self. minuteHand) qp. restore () qp. setPen (self. minuteColor) for I in range (60): if (I % 5) is not 0: qp. drawLine (92, 0, 96, 0) qp. rotate (1, 6.0) qp. setPen (QtCore. qt. noPen) qp. setBrush (self. secondColor) qp. save () qp. rotate (6.0 * (time. second () + time. (msec ()/1000.0) qp. drawConvexPolygon (self. secondHand) qp. restore () qp. end () if _ name _ = '_ main _': app = QtGui. QApplication (sys. argv) clock = Clock () sys.exit(app.exe c _())

Example 3:

It mainly imitates the built-in clock example of qt and implements it through python syntax,
At the same time, the second-hand implementation is added.
The tools used are qt 4.8, python 2.7, and pyqt.

import sysfrom PyQt4.QtCore import *from PyQt4.QtGui import *class clock (QWidget):  def __init__(self):    QWidget.__init__(self,windowTitle="python clock")    timer = QTimer(self)    self.connect(timer, SIGNAL("timeout()"),self,SLOT("update()"))    timer.start(1000)    self.resize(200,200)  def paintEvent(self,e):    hourColorHand = QPolygon([QPoint(7,8),QPoint(-7,8),QPoint(0,-30)])    minuteColorHand = QPolygon([QPoint(7,8),QPoint(-7,8),QPoint(0,-70)])    secondColorHand = QPolygon([QPoint(3,8),QPoint(-3,8),QPoint(0,-90)])    hourColor = QColor(127,0,127)    minuteColor = QColor(0,127,127,191)    secondColor = QColor(0,100,100,100)    painter = QPainter(self);    side = min(self.width(),self.height())    atime =QTime.currentTime()    painter.setRenderHint(QPainter.Antialiasing)    painter.translate(self.width()/2,self.height()/2)    painter.scale(side/200,side/200)    painter.setPen(Qt.NoPen)    painter.setBrush(hourColor)    painter.save()    painter.rotate(30.0*(atime.hour() + atime.minute()/60.0))    painter.drawConvexPolygon(hourColorHand)    painter.restore()    painter.setPen(hourColor)    for i in range(0,12):     painter.drawLine(88,0,96,0)     painter.rotate(30.0)    painter.setPen(Qt.NoPen)    painter.setBrush(minuteColor)    painter.save()    painter.rotate(6.0*(atime.minute()+atime.second()/60.0))    painter.drawConvexPolygon(minuteColorHand)    painter.restore()    painter.setPen(minuteColor)    for i in range(0,60) :     if (i%5)!=0 :       painter.drawLine(92,0,96,0)     painter.rotate(6.0)    painter.setPen(Qt.NoPen)    painter.setBrush(secondColor)    painter.save()    painter.rotate(6.0 * atime.second())    painter.drawConvexPolygon(secondColorHand)    painter.restore()if __name__ == "__main__" :   q = QApplication(sys.argv)   s = clock()   s.show()   q.exec_()