拖动框架pyqt5时如何移动窗口[重复]

Question

我想在 pyqt5 中使用 QFrame 拖动窗口。 尝试函数 mouseMoveEvent 但我收到有关 move() 的错误 添加mouseMoveEvent函数进行移动但不起作用并返回错误：

Traceback（最近一次调用最后一次）：文件“main.py”，第 47 行，在 鼠标移动事件 self.move(self.pos() + event.globalPos() - self.dragPos) AttributeError: 'Ui_MainWindow' 对象没有属性 'move'

这是我使用 pyuic5 从 ui 文件创建到 py 的示例代码

ma​​in.py

# -*- coding: utf-8 -*-


from PyQt5 import QtCore, QtGui, QtWidgets
import t

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        
        # Remove title bar
        MainWindow.setWindowFlag(QtCore.Qt.FramelessWindowHint) 
        MainWindow.resize(800, 450)
        MainWindow.setMinimumSize(QtCore.QSize(800, 450))
        MainWindow.setMaximumSize(QtCore.QSize(800, 450))
        MainWindow.setStyleSheet("QMainWindow {background: transparent; }\n"
"QToolTip {\n"
"    color: #ffffff;\n"
"    background-color: rgba(27, 29, 35, 160);\n"
"    border: 1px solid rgb(40, 40, 40);\n"
"    border-radius: 2px;\n"
"}")
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.frame = QtWidgets.QFrame(self.centralwidget)
        self.frame.setGeometry(QtCore.QRect(0, 0, 800, 450))
        self.frame.setStyleSheet("QFrame {\n"
"background-image: url(:/1/welcome.jpg);\n"
"}")
        self.frame.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self.frame.setFrameShadow(QtWidgets.QFrame.Raised)
        self.frame.setObjectName("frame")
        # Connect frame to mouseMoveEvent
        self.frame.mouseMoveEvent = self.mouseMoveEvent
        MainWindow.setCentralWidget(self.centralwidget)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
    

    def mouseMoveEvent(self, event):
        if event.buttons() == QtCore.Qt.LeftButton:
            self.move(self.pos() + event.globalPos() - self.dragPos)
            self.dragPos = event.globalPos()
            event.accept()


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_())

Answer 1

不要修改 Qt Designer 生成的代码，而是创建另一个继承的类 来自适当的小部件并使用初始类来填充它。

from PyQt5 import QtCore, QtGui, QtWidgets
#import t

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        
        # Remove title bar
        MainWindow.setWindowFlag(QtCore.Qt.FramelessWindowHint) 
        MainWindow.resize(512, 450)
        MainWindow.setMinimumSize(QtCore.QSize(512, 450))
        MainWindow.setMaximumSize(QtCore.QSize(512, 450))
        MainWindow.setStyleSheet("QMainWindow {background: transparent; }\n"
"QToolTip {\n"
"    color: #ffffff;\n"
"    background-color: rgba(227, 29, 35, 160);\n"
"    border: 1px solid rgb(40, 40, 40);\n"
"    border-radius: 2px;\n"
"}")
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.frame = QtWidgets.QFrame(self.centralwidget)
        self.frame.setGeometry(QtCore.QRect(0, 0, 512, 512))
        self.frame.setStyleSheet("QFrame {\n"
"background-image: url(lena.jpg);\n"
"}")
        self.frame.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self.frame.setFrameShadow(QtWidgets.QFrame.Raised)
        self.frame.setObjectName("frame")
        # Connect frame to mouseMoveEvent
        self.frame.mouseMoveEvent = self.mouseMoveEvent
        MainWindow.setCentralWidget(self.centralwidget)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
    

#    def mouseMoveEvent(self, event):
#        if event.buttons() == QtCore.Qt.LeftButton:
#            self.move(self.pos() + event.globalPos() - self.dragPos)
#            self.dragPos = event.globalPos()
#            event.accept()


class MyWin(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self):
        super().__init__()
        self.setupUi(self)
        self.dragPos = QtCore.QPoint()
        
    def mousePressEvent(self, event):                                 # +
        self.dragPos = event.globalPos()
        
    def mouseMoveEvent(self, event):                                  # !!!
        if event.buttons() == QtCore.Qt.LeftButton:
            self.move(self.pos() + event.globalPos() - self.dragPos)
            self.dragPos = event.globalPos()
            event.accept()        
        

if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
#    MainWindow = QtWidgets.QMainWindow()
#    ui = Ui_MainWindow()
#    ui.setupUi(MainWindow)
#    MainWindow.show()
    w = MyWin()
    w.show()
    sys.exit(app.exec_())