84 lines
2 KiB
Python
84 lines
2 KiB
Python
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Created on 2018年11月11日
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@author: Irony
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@site: https://pyqt5.com, https://github.com/892768447
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@email: 892768447@qq.com
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@file:
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@description:
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"""
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from PyQt5.QtCore import QThread, QWaitCondition, QMutex, pyqtSignal
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from PyQt5.QtWidgets import QWidget, QVBoxLayout, QPushButton, QProgressBar
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__Author__ = """By: Irony
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QQ: 892768447
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Email: 892768447@qq.com"""
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__Copyright__ = 'Copyright (c) 2018 Irony'
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__Version__ = 1.0
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class Thread(QThread):
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valueChange = pyqtSignal(int)
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def __init__(self, *args, **kwargs):
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super(Thread, self).__init__(*args, **kwargs)
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self._isPause = False
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self._value = 0
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self.cond = QWaitCondition()
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self.mutex = QMutex()
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def pause(self):
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self._isPause = True
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def resume(self):
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self._isPause = False
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self.cond.wakeAll()
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def run(self):
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while 1:
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self.mutex.lock()
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if self._isPause:
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self.cond.wait(self.mutex)
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if self._value > 100:
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self._value = 0
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self._value += 1
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self.valueChange.emit(self._value)
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self.msleep(100)
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self.mutex.unlock()
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class Window(QWidget):
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def __init__(self, *args, **kwargs):
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super(Window, self).__init__(*args, **kwargs)
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layout = QVBoxLayout(self)
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self.progressBar = QProgressBar(self)
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layout.addWidget(self.progressBar)
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layout.addWidget(QPushButton('休眠', self, clicked=self.doWait))
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layout.addWidget(QPushButton('唤醒', self, clicked=self.doWake))
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self.t = Thread(self)
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self.t.valueChange.connect(self.progressBar.setValue)
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self.t.start()
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def doWait(self):
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self.t.pause()
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def doWake(self):
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self.t.resume()
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if __name__ == '__main__':
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import sys
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import cgitb
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sys.excepthook = cgitb.enable(1, None, 5, '')
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from PyQt5.QtWidgets import QApplication
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app = QApplication(sys.argv)
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w = Window()
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w.show()
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sys.exit(app.exec_())
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