How to communicate QThread with my Widgets from main class - python-3.x

Question

My app is freezing because i need to create a new QThread, but am a little confused how to create it when i call widgets that exists on the main class.
here is my code so far ...
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.uic import loadUi
import time
##Main Class
class HWindow(QtWidgets.QWidget):
def __init__(self):
super(HWindow, self).__init__()
loadUi("Hw.ui",self) ##load ui
#Create a QThread object
self.thread = QtCore.QThread()
#Create a QThread object
self.workerMain = WorkerMain()
#Move worker to the thread
self.workerMain.moveToThread(self.thread)
#Start the thread
self.thread.start()
self.runningMain = False
def activateMain(self):
if self.chkb_main.isChecked():
self.lbl_disena_main.setText("Activated")
self.lbl_disena_main.setStyleSheet('color: green;')
#Change variable and call the function
runningMain = True
self.myFunction()
else:
self.lbl_disena_main.setText("Disabled")
self.lbl_disena_main.setStyleSheet('color: red;')
#Change variable and call the function
runningMain = False
def myFunction(self):
while self.runningMain == True:
if self.gpb_main.isChecked() and self.chkb_main.isChecked():
print("running ...")
time.sleep(3)
##Worker Class
class WorkerMain(QtCore.QObject):
threadRunning = QtCore.pyqtSignal()
def __init__(self):
super(WorkerMain, self).__init__()
def run(self):
print("Thread Running ...")
#i cant call my widgets from my main class from here.
'''
while self.runningMain == True:
if self.gpb_main.isChecked() and self.chkb_main.isChecked():
print("running ...")
time.sleep(3)
'''
def stop(self):
print("Thread Stopped ...")
self.terminate()
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
hWindow = QtWidgets.QWidget()
hWindow = HWindow()
hWindow.show()
sys.exit(app.exec_())
Based on pyqt5 documentation and examples, you create a loop on the run method, but it is complicated when i have to create that loop based on what the user select (GUI widgets).

Answer 1

i just figure it out, here is my code ...
class HWindow(QtWidgets.QWidget):
def __init__(self):
super(HWindow, self).__init__()
loadUi("Hw.ui",self) ##load ui
#Create a QThread object
self.thread = QtCore.QThread()
#Create a QThread object
self.workerMain = WorkerMain(self)
#Move worker to the thread
self.workerMain.moveToThread(self.thread)
#Connect the start signal to the run slot
self.workerMain.threadRunning.connect(self.workerMain.run)
#Connect the activateMain signal to the start slot
self.chkb_main.toggled.connect(self.activateMain)
#Start the thread
self.thread.start()
def activateMain(self):
if self.chkb_main.isChecked():
self.lbl_disena_main.setText("Activated")
self.lbl_disena_main.setStyleSheet('color: green;')
self.workerMain.runningMain = True
self.workerMain.threadRunning.emit()
if not self.thread.isRunning():
self.thread.start()
else:
self.lbl_disena_main.setText("Disabled")
self.lbl_disena_main.setStyleSheet('color: red;')
self.workerMain.runningMain = False
self.workerMain.stop()
##Worker Class
class WorkerMain(QtCore.QObject):
threadRunning = QtCore.pyqtSignal()
def __init__(self, parent):
super(WorkerMain, self).__init__()
self.parent = parent
self.runningMain = False
def run(self):
print("Thread Running ...")
while self.runningMain:
if self.parent.gpb_main.isChecked() and self.parent.chkb_main.isChecked():
print("running ...")
time.sleep(3)
def stop(self):
print("Thread Stopped ...")
if self.parent.thread.isRunning():
self.parent.thread.quit()
self.parent.thread.wait()
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
hWindow = QtWidgets.QWidget()
hWindow = HWindow()
hWindow.show()
sys.exit(app.exec_())