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| import sys, random
from PyQt4 import QtGui, QtCore
class Example(QtGui.QWidget):
def __init__(self):
super(Example, self).__init__()
self.pointsList = []#liste des points à tracer
self.isDrawing = 0#variable de contrôle
self.initUI()
def initUI(self):
self.setGeometry(300, 300, 280, 170)
self.setWindowTitle('Points')
self.show()
def mousePressEvent(self, event):
self.isDrawing = 1
self.pointsList = []
def mouseReleaseEvent(self, event):
self.isDrawing = 0
def mouseMoveEvent(self, event):
if self.isDrawing == 1:
self.pointsList.append(event.pos())#on ajoute le point
self.repaint()#on redessine
def paintEvent(self, e):
qp = QtGui.QPainter()
qp.begin(self)
for point in self.pointsList:
qp.drawPoint(point)
qp.end()
def main():
app = QtGui.QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
if __name__ == '__main__':
main() |
