I have GUI application which uses qwebview to make web automation process through long loop so I used QThread to do this but I can't terminate the thread, my code is below
class Main(QMainWindow):
def btStart(self):
self.mythread = BrowserThread()
self.connect(self.mythread, SIGNAL('loop()'), self.campaign_loop, Qt.AutoConnection)
self.mythread.start()
def btStop(self):
self.mythread.terminate()
def campaign_loop(self):
loop goes here
class BrowserThread(QThread):
def __init__(self):
QThread.__init__(self)
def run(self):
self.emit(SIGNAL('loop()'))
this code is working fine in starting thread but fail to stop the loop and browser still running even if I call close event to it and it disappears from GUI
the point is to make the main loop in the " run " method because " terminate " function is stopping the loop in " run " not the thread its self here is a working example for this, but unfortunately it works on windows only
import sys
import time
from PySide.QtGui import *
from PySide.QtCore import *
class frmMain(QDialog):
def __init__(self):
QDialog.__init__(self)
self.btStart = QPushButton('Start')
self.btStop = QPushButton('Stop')
self.counter = QSpinBox()
self.layout = QVBoxLayout()
self.layout.addWidget(self.btStart)
self.layout.addWidget(self.btStop)
self.layout.addWidget(self.counter)
self.setLayout(self.layout)
self.btStart.clicked.connect(self.start_thread)
self.btStop.clicked.connect(self.stop_thread)
def stop_thread(self):
self.th.stop()
def loopfunction(self, x):
self.counter.setValue(x)
def start_thread(self):
self.th = thread(2)
#self.connect(self.th, SIGNAL('loop()'), lambda x=2: self.loopfunction(x), Qt.AutoConnection)
self.th.loop.connect(self.loopfunction)
self.th.setTerminationEnabled(True)
self.th.start()
class thread(QThread):
loop = Signal(object)
def __init__(self, x):
QThread.__init__(self)
self.x = x
def run(self):
for i in range(100):
self.x = i
self.loop.emit(self.x)
time.sleep(0.5)
def stop(self):
self.terminate()
app = QApplication(sys.argv)
win = frmMain()
win.show()
sys.exit(app.exec_())
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