77 lines
1.9 KiB
Python
77 lines
1.9 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
Created on 2018年11月11日
|
|
@author: Irony
|
|
@site: https://pyqt.site , https://github.com/PyQt5
|
|
@email: 892768447@qq.com
|
|
@file:
|
|
@description:
|
|
"""
|
|
from PyQt5.QtCore import QThread, QWaitCondition, QMutex, pyqtSignal
|
|
from PyQt5.QtWidgets import QWidget, QVBoxLayout, QPushButton, QProgressBar
|
|
|
|
|
|
class Thread(QThread):
|
|
valueChange = pyqtSignal(int)
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
super(Thread, self).__init__(*args, **kwargs)
|
|
self._isPause = False
|
|
self._value = 0
|
|
self.cond = QWaitCondition()
|
|
self.mutex = QMutex()
|
|
|
|
def pause(self):
|
|
self._isPause = True
|
|
|
|
def resume(self):
|
|
self._isPause = False
|
|
self.cond.wakeAll()
|
|
|
|
def run(self):
|
|
while 1:
|
|
self.mutex.lock()
|
|
if self._isPause:
|
|
self.cond.wait(self.mutex)
|
|
if self._value > 100:
|
|
self._value = 0
|
|
self._value += 1
|
|
self.valueChange.emit(self._value)
|
|
self.msleep(100)
|
|
self.mutex.unlock()
|
|
|
|
|
|
class Window(QWidget):
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
super(Window, self).__init__(*args, **kwargs)
|
|
layout = QVBoxLayout(self)
|
|
self.progressBar = QProgressBar(self)
|
|
layout.addWidget(self.progressBar)
|
|
layout.addWidget(QPushButton('休眠', self, clicked=self.doWait))
|
|
layout.addWidget(QPushButton('唤醒', self, clicked=self.doWake))
|
|
|
|
self.t = Thread(self)
|
|
self.t.valueChange.connect(self.progressBar.setValue)
|
|
self.t.start()
|
|
|
|
def doWait(self):
|
|
self.t.pause()
|
|
|
|
def doWake(self):
|
|
self.t.resume()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
import sys
|
|
import cgitb
|
|
|
|
cgitb.enable(format='text')
|
|
from PyQt5.QtWidgets import QApplication
|
|
|
|
app = QApplication(sys.argv)
|
|
w = Window()
|
|
w.show()
|
|
sys.exit(app.exec_())
|