#! /usr/bin/python3
# coding = utf-8
# from PyQt5 import QtGui,QtCore,Qt
import sys
from PyQt5.QtCore import Qt,pyqtSignal,QSize,QRect,QMetaObject, QCoreApplication, pyqtSlot,QPropertyAnimation,QThread
from PyQt5.QtGui import QIcon, QFont, QPixmap, QPainter, QImage
from PyQt5.QtWidgets import QMainWindow, QApplication

import cv2
from gevent.libev.corecext import SIGNAL, time
from qtpy importQtCore


class mycsms(QMainWindow):
    def __init__(self):
        super(mycsms, self).__init__()
        self.setupUi(self)
        self.image= QImage()
        self.device= cv2.VideoCapture(0)
        self.playTimer= Timer("updatePlay()")
        self.connect(self.playTimer, SIGNAL("updatePlay()"), self.showCamer)

    # 讀攝像頭
    def showCamer(self):
        if self.device.isOpened():
            ret, frame= self.device.read()
        else:
            ret = False
        # 讀寫(xiě)磁盤(pán)方式
        # cv2.imwrite("2.png",frame)
        #self.image.load("2.png")

        height, width, bytesPerComponent= frame.shape
        bytesPerLine = bytesPerComponent* width
        # 變換彩色空間順序
        cv2.cvtColor(frame, cv2.COLOR_BGR2RGB,frame)
        # 轉(zhuǎn)為QImage對(duì)象
        self.image= QImage(frame.data, width, height, bytesPerLine, QImage.Format_RGB888)
        self.view.setPixmap(QPixmap.fromImage(self.image))

if __name__ == "__main__":
    app = QApplication(sys.argv)
    myshow = mycsms()
    myshow.playTimer.start()
    myshow.show()
    sys.exit(app.exec_())

# 線(xiàn)程類(lèi)：
class Timer(QtCore.QThread):

    def __init__(self, signal="updateTime()", parent=None):
        super(Timer, self).__init__(parent)
        self.stoped= False
        self.signal= signal
        self.mutex= QtCore.QMutex()

    def run(self):
        with QtCore.QMutexLocker(self.mutex):
            self.stoped= False
        while True:
            if self.stoped:
                return
            self.emit(QtCore.SIGNAL(self.signal))
            #40毫秒發(fā)送一次信號(hào)
            time.sleep(0.04)

    def stop(self):
        with QtCore.QMutexLocker(self.mutex):
            self.stoped= True

    def isStoped(self):
        with QtCore.QMutexLocker(self.mutex):
            return self.stoped