# -*- coding: cp936 -*-
from PyQt4 import QtCore, QtGui, Qt
class RotatePage(QtGui.QFrame):
def __init__(self, img, x_pos, y_pos, direction = 1, speed = 30, step = 10):
super(RotatePage, self).__init__()
self.img = img #图片
self.x_pos = x_pos #x坐标
self.y_pos = y_pos #y坐标
self.direction = direction #转向
self.speed = speed #转速
self.step = 10 #步长
self.rotate = 0 #角度
self.timer = QtCore.QBasicTimer() #定时器
self.timer.start(30, self)
def play(self):
#播放
self.timer.start(self.speed, self)
def stop(self):
#停止
self.timer.stop()
def setDirection(self, arg):
#设置转向
if arg <= 0:
self.step = - abs(self.step)
else:
self.step = abs(self.step)
self.timer.start(self.speed, self)
def setSpeed(self, speed):
#设置转速
self.speed = speed
self.timer.start(speed, self)
def setStep(self, arg):
#设置步长
self.step = arg
def paintEvent(self, event):
painter = Qt.QPainter(self)
pix = QtGui.QPixmap(self.img)
painter.translate(self.x_pos / 2, self.y_pos / 2) #使图片的中心作为旋转的中心
painter.rotate(self.rotate) #顺时针旋转10°
painter.translate(-self.x_pos / 2, -self.y_pos / 2) #将原点复位
painter.drawPixmap(0, 0, self.x_pos, self.y_pos, pix)
def timerEvent(self, event):
if event.timerId() == self.timer.timerId():
self.rotate += self.step
if self.rotate > 360:
self.rotate = 0
self.update()
else:
super(RotatePage, self).timerEvent(event)
if __name__ == ‘__main__‘:
import sys
app = QtGui.QApplication(sys.argv)
frm = RotatePage("icon.png", 100, 100)
frm.show()
sys.exit(app.exec_())
