[英]Python PyQt5 Progress Bar is not progressing
so basically i have programs that are meant to show the progress of reading an excel file line by line in the background. 所以基本上我有一些程序,用于显示在后台逐行读取excel文件的进度。 So far i have the following code: 到目前为止,我有以下代码:
excelresult.py: excelresult.py:
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import pyqtSlot
from PyQt5.QtCore import Qt, QBasicTimer
import os, sys, xlrd, threading, time, pythoncom
import win32com.client
from time import sleep
from test import MyGlobals
class ExcelCheck(threading.Thread):
progPercent = 0
def __init__(self):
threading.Thread.__init__(self)
self.event = threading.Event()
def run(self):
pythoncom.CoInitialize()
try:
while not self.event.is_set():
excel = win32com.client.Dispatch("Excel.Application")
wb = excel.ActiveWorkbook
ws = wb.Worksheets("TC")
va_title = ws.Range(ws.Range('I7'), ws.Range('I700'))
i = 0
for r in va_title.Cells:
if r.Text != '':
i = i + 1
# print(r.Text)
# print(i)
# print(round(i / 178.0 * 100,0))
# rounding off
progPercent = round(i / 178.0 * 100.0)
MyGlobals.x=progPercent
print(progPercent)
return progPercent
except:
print('Excel is not executed')
# sleep(1)
# self.event.wait()
def stop(self):
self.event.set()
scm.py scm.py
# -*- coding: utf-8 -*-
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import pyqtSlot
from PyQt5.QtCore import QObject, pyqtSignal
from PyQt5.QtCore import Qt, QBasicTimer
import os, sys, xlrd, win32com.client, xlwt, threading, time
from time import sleep
from ExcelResult import *
from test import MyGlobals
import threading
class Ui_MainWindow(object):
def __init__(self):
super().__init__()
self.btn_active = False
print('init_false')
def startBtnClicked(self):
self.btnStart.setText('start!')
self.btn_active = True
print(self.btn_active)
tmr = ExcelCheck()
tmr.start()
while(MyGlobals.x<=100):
#print (MyGlobals.x)
self.progressBar.setValue(MyGlobals.x)
# self.progressBar.minimum = 1
# self.progressBar.maximum = 100
# for progPercent in range(1, 101):
# self.progressBar.setValue(progPercent)
# time.sleep(1)
def exitBtnClicked(self):
# self.ExcelCheck()
self.btn_active = False
print(self.btn_active)
# os.system("taskkill /f /im Scm21.Client.exe")
# self.close()
# Stop the progress of python
self.sys.exit()
tmr = ExcelCheck()
tmr.stop()
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(446, 207)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.progressBar = QtWidgets.QProgressBar(self.centralwidget)
self.progressBar.setGeometry(QtCore.QRect(40, 70, 381, 23))
self.progressBar.setProperty("value", 0)
self.progressBar.setObjectName("progressBar")
self.btnStart = QtWidgets.QPushButton(self.centralwidget)
self.btnStart.setGeometry(QtCore.QRect(110, 110, 75, 23))
self.btnStart.setObjectName("btnStart")
self.btnStart.clicked.connect(self.startBtnClicked)
self.btnExit = QtWidgets.QPushButton(self.centralwidget)
self.btnExit.setGeometry(QtCore.QRect(260, 110, 75, 23))
self.btnExit.setObjectName("btnExit")
self.btnExit.clicked.connect(self.exitBtnClicked)
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 446, 21))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "SCM21"))
self.btnStart.setText(_translate("MainWindow", "Start"))
self.btnExit.setText(_translate("MainWindow", "Exit"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
and, test.py 和,test.py
class MyGlobals(object):
x = 0
So, i am able to get the value of the ProgPercent from the ExcelResult.py into the scm.py using the test.py but completely not aware how would i update the progressbar value. 所以,我能够使用test.py从ExcelResult.py获取ProgPercent的值到scm.py,但完全不知道我将如何更新进度条值。
I tried using a loop but it hangs the GUI. 我尝试使用循环,但它挂起了GUI。
Thanks. 谢谢。
Use Qthread: 使用Qthread:
import time
from PyQt5 import QtCore
from PyQt5 import QtWidgets
class ExcelCheck(QtCore.QThread):
updated = QtCore.pyqtSignal(int)
running = False
def __init__(self, parent=None):
super(ExcelCheck, self).__init__(parent)
self.progPercent = 0
self.running = True
def run(self):
while self.running:
self.progPercent += 1
self.progPercent %= 100
self.updated.emit(int(self.progPercent))
time.sleep(0.1)
def stop(self):
self.running = False
class MainWindow(QtWidgets.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent=parent)
self.setupUi(self)
self.btn_active = False
def startBtnClicked(self):
self.btnStart.setText('start!')
self.btn_active = True
self.tmr = ExcelCheck(self)
self.tmr.updated.connect(self.updateValue)
self.tmr.start()
def updateValue(self, data):
self.progressBar.setValue(data)
def exitBtnClicked(self):
# self.ExcelCheck()
self.btn_active = False
self.tmr.stop()
self.sys.exit()
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(446, 207)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.progressBar = QtWidgets.QProgressBar(self.centralwidget)
self.progressBar.setGeometry(QtCore.QRect(40, 70, 381, 23))
self.progressBar.setProperty("value", 0)
self.progressBar.setObjectName("progressBar")
self.btnStart = QtWidgets.QPushButton(self.centralwidget)
self.btnStart.setGeometry(QtCore.QRect(110, 110, 75, 23))
self.btnStart.setObjectName("btnStart")
self.btnStart.clicked.connect(self.startBtnClicked)
self.btnExit = QtWidgets.QPushButton(self.centralwidget)
self.btnExit.setGeometry(QtCore.QRect(260, 110, 75, 23))
self.btnExit.setObjectName("btnExit")
self.btnExit.clicked.connect(self.exitBtnClicked)
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 446, 21))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "SCM21"))
self.btnStart.setText(_translate("MainWindow", "Start"))
self.btnExit.setText(_translate("MainWindow", "Exit"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
w = MainWindow()
w.show()
sys.exit(app.exec_())
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.