PyQt4到PyQt5怎么样？-Java 学习之路

我用PyQt4创建的代码，我想将它转换为PyQt5 . 我尝试了一些脚本来转换，但没有改变除了名称我需要手动更改以使代码与PyQt5一起使用？第一部分

import sys
from pymaxwell import *
from numpy import *
from PyQt4 import QtGui, QtCore, uic
from PyQt4.QtGui import QMainWindow, QApplication
from PyQt4.QtCore import *
from PyQt4.phonon import Phonon
from ffmpy import FFmpeg
import os
import app_window_dark
import about

uifile = 'Ui/app_window_dark.ui'
aboutfile = 'Ui/about.ui'

Ui_MainWindow, QtBaseClass = uic.loadUiType(uifile)
Ui_Dialog= uic.loadUiType(uifile)

class About(QtGui.QMainWindow, about.Ui_Dialog):
    def __init__(self, parent=None):
        super(About, self).__init__()
        QtGui.QMainWindow.__init__(self, parent)
        Ui_Dialog.__init__(self)
        self.setWindowModality(QtCore.Qt.ApplicationModal)
        point = parent.rect().bottomRight()
        global_point = parent.mapToGlobal(point)
        self.move(global_point - QPoint(395, 265))
        self.setupUi(self)

class MyApp(QtGui.QMainWindow, app_window_dark.Ui_MainWindow):
    def __init__(self):
        super(MyApp, self).__init__()
        QtGui.QMainWindow.__init__(self)
        self.ui = Ui_MainWindow.__init__(self)
        self.setupUi(self)
        self.about_btn.clicked.connect(self.popup)

        #prev next
        self.btn_next.clicked.connect(self.renderSet)
        self.btn_prev.clicked.connect(self.renderSet)

还有这个

if __name__ == "__main__":
    app = QApplication(sys.argv)
    #style = QApplication.setStyle('plastique')
    window = MyApp()
    window.setFixedSize(750, 320)
    window.show()
    sys.exit(app.exec_())

1 回答

从Qt4到Qt5以及从PyQt4到PyQt5的主要变化是某些类的重新排列，以便Qt项目可扩展并生成较小的可执行文件 .

QtGui库分为2个子模块：QtGui和QtWidgets，第二个只是小部件，即QMainWindow，QPushButton等 . 这就是你必须做出的改变：

[...]
from PyQt5 import QtGui, QtCore, uic, QtWidgets
from PyQt5.QtWidgets import QMainWindow, QApplication
from PyQt5.QtCore import *
[...]

Ui_MainWindow, QtBaseClass = uic.loadUiType(uifile)
Ui_Dialog= uic.loadUiType(uifile)

class About(QtWidgets.QMainWindow, about.Ui_Dialog):
    def __init__(self, parent=None):
        QtWidgets.QMainWindow.__init__(self, parent)
        self.setupUi(self)
        self.setWindowModality(QtCore.Qt.ApplicationModal)
        point = parent.rect().bottomRight()
        global_point = parent.mapToGlobal(point)
        self.move(global_point - QPoint(395, 265))

class MyApp(QtWidgets.QMainWindow, app_window_dark.Ui_MainWindow):
    def __init__(self):
        QtWidgets.QMainWindow.__init__(self)
        self.setupUi(self)
        self.about_btn.clicked.connect(self.popup)

        #prev next
        self.btn_next.clicked.connect(self.renderSet)
        self.btn_prev.clicked.connect(self.renderSet)

注意：PyQt5中不存在Phonon，您必须使用QtMultimedia，这是一个准确的解决方案，您可以在以下答案中找到它：Phonon class not present in PyQt5

回复于 2024-05-05T23:08:11+08:00

PyQt4到PyQt5怎么样？

1 回答

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