英文:
How to communicate QThread with my Widgets from main class
问题
以下是您提供的代码的翻译部分：
我的应用程序因需要创建一个新的QThread而冻结，但我有点困惑如何在调用存在于主类上的小部件时创建它。
以下是迄今为止的我的代码...
从PyQt5导入QtCore，QtGui，QtWidgets
从PyQt5.uic导入loadUi
import时间
##主类
class HWindow(QtWidgets.QWidget):
def __init__(self):
super(HWindow, self).__init__()
loadUi("Hw.ui", self) # 加载UI
# 创建一个QThread对象
self.thread = QtCore.QThread()
# 创建一个QThread对象
self.workerMain = WorkerMain()
# 将工作线程移到线程中
self.workerMain.moveToThread(self.thread)
# 启动线程
self.thread.start()
self.runningMain = False
def activateMain(self):
if self.chkb_main.isChecked():
self.lbl_disena_main.setText("已激活")
self.lbl_disena_main.setStyleSheet('color: green;')
# 更改变量并调用函数
runningMain = True
self.myFunction()
else:
self.lbl_disena_main.setText("已禁用")
self.lbl_disena_main.setStyleSheet('color: red;')
# 更改变量并调用函数
runningMain = False
def myFunction(self):
while self.runningMain == True:
if self.gpb_main.isChecked() and self.chkb_main.isChecked():
print("运行中...")
time.sleep(3)
##工作线程类
class WorkerMain(QtCore.QObject):
threadRunning = QtCore.pyqtSignal()
def __init__(self):
super(WorkerMain, self).__init__()
def run(self):
print("线程运行中...")
# 从这里无法调用来自主类的小部件。
'''
while self.runningMain == True:
if self.gpb_main.isChecked() and self.chkb_main.isChecked():
print("运行中...")
time.sleep(3)
'''
def stop(self):
print("线程已停止...")
self.terminate()
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
hWindow = QtWidgets.QWidget()
hWindow = HWindow()
hWindow.show()
sys.exit(app.exec_())
请注意，我将代码中的双引号（"）替换为单引号（'）以使其成为有效的Python代码。此外，您提到您在工作线程中无法从主类中调用小部件，这是因为工作线程不直接访问主线程的小部件。您可能需要通过信号和槽机制来实现与主线程小部件的通信。如果您需要进一步的帮助，请提供更多具体信息。
英文:
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).
答案1
得分: 0
这是你的代码，我已经帮你翻译了代码部分，如下所示：
我只是搞清楚了，这是我的代码...
class HWindow(QtWidgets.QWidget):
def __init__(self):
super(HWindow, self).__init__()
loadUi("Hw.ui", self) # 加载UI文件
# 创建一个QThread对象
self.thread = QtCore.QThread()
# 创建一个QThread对象
self.workerMain = WorkerMain(self)
# 将worker移到线程中
self.workerMain.moveToThread(self.thread)
# 将启动信号连接到运行槽
self.workerMain.threadRunning.connect(self.workerMain.run)
# 将activateMain信号连接到启动槽
self.chkb_main.toggled.connect(self.activateMain)
# 启动线程
self.thread.start()
def activateMain(self):
if self.chkb_main.isChecked():
self.lbl_disena_main.setText("已激活")
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("已禁用")
self.lbl_disena_main.setStyleSheet('color: red;')
self.workerMain.runningMain = False
self.workerMain.stop()
##Worker类
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("线程正在运行...")
while self.runningMain:
if self.parent.gpb_main.isChecked() and self.parent.chkb_main.isChecked():
print("运行中...")
time.sleep(3)
def stop(self):
print("线程已停止...")
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_())
请注意，我已将代码中的HTML实体转义字符（例如"）翻译为普通文本，以使代码更易阅读。
英文:
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_())
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