#!/usr/bin/env python
import sys
import random
from PyQt4 import QtCore, QtGui
WIDTH = 800
HEIGHT = 600
class DrawExample(QtGui.QWidget):
def __init__(self):
super(DrawExample, self).__init__()
self.points = []
self.init_ui()
self.startTimer(0)
def init_ui(self):
self.setGeometry(300, 300, WIDTH, HEIGHT)
self.setWindowTitle('Draw')
self.show()
def timerEvent(self, e):
if len(self.points) < 10000:
self.points.append((
random.randint(1, WIDTH-1),
random.randint(1, HEIGHT-1),
))
self.update()
def paintEvent(self, e):
qp = QtGui.QPainter()
qp.begin(self)
color = QtGui.QColor(250, 100, 100)
qp.setPen(color)
for point in self.points:
qp.drawEllipse(point[0]-3, point[1]-3, 6, 6)
qp.end()
def main():
app = QtGui.QApplication(sys.argv)
ex = DrawExample()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
