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Analog clock (Python recipe) by greg zakharov
ActiveState Code (http://code.activestate.com/recipes/578683/)

Analog clock with Qt4

Python, 72 lines
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#!/usr/bin/env python

from sys import argv, exit
from PyQt4 import QtCore, QtGui

class Clock(QtGui.QWidget):
   def __init__(self, parent=None):
      super(Clock, self).__init__(parent)
      #timer
      timer = QtCore.QTimer(self)
      timer.timeout.connect(self.update)
      timer.start(1000)
      #window
      self.setWindowIcon(QtGui.QIcon('Default.png'))
      self.setWindowTitle('Clock')
      self.resize(200, 200)
      #hour pointer
      self.hPointer = QtGui.QPolygon([
         QtCore.QPoint(6, 7),
         QtCore.QPoint(-6, 7),
         QtCore.QPoint(0, -50)
      ])
      #minute pointer
      self.mPointer = QtGui.QPolygon([
         QtCore.QPoint(6, 7),
         QtCore.QPoint(-6, 7),
         QtCore.QPoint(0, -70)
      ])
      #second pointer
      self.sPointer = QtGui.QPolygon([
         QtCore.QPoint(1, 1),
         QtCore.QPoint(-1, 1),
         QtCore.QPoint(0, -90)
      ])
      #colors
      self.bColor = QtGui.QColor('#0000aa') #hours and minutes
      self.sColor = QtGui.QColor('#aa0087')

   def paintEvent(self, event):
      rec = min(self.width(), self.height())
      tik = QtCore.QTime.currentTime()
      #painter
      painter = QtGui.QPainter(self)
      #zipping code to draw pointers
      def drawPointer(color, rotation, pointer):
         painter.setBrush(QtGui.QBrush(color))
         painter.save()
         painter.rotate(rotation)
         painter.drawConvexPolygon(pointer)
         painter.restore()
      #tune up painter
      painter.setRenderHint(QtGui.QPainter.Antialiasing)
      painter.translate(self.width() / 2, self.height() / 2)
      painter.scale(rec / 200, rec / 200)
      painter.setPen(QtCore.Qt.NoPen)
      #draw pointers
      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)
      #draw face
      painter.setPen(QtGui.QPen(self.bColor))
      for i in range(0, 60):
         if (i % 5) != 6:
            painter.drawLine(87, 0, 97, 0)
         painter.rotate(6)
      painter.end()

if __name__ == '__main__':
   app = QtGui.QApplication(argv)
   win = Clock()
   win.show()
   exit(app.exec_())
Tags: analog, clock