PyQT5 'QPoint' 对象没有属性 'pos'

Question

我在 pyQT5 上有一些问题。在 TextArea 部分，当我右键单击一个单词时，我想打开一个菜单并在那里打印该单词的同义词。我找到了一个示例菜单函数，但在标题中出现错误（PyQT5 'QPoint' 对象没有属性 'pos'）。这源于什么？我还有其他方法可以遵循吗？

import sys
from PyQt5 import QtCore, QtWidgets
from PyQt5.QtWidgets import QMainWindow, QLabel, QGridLayout, QWidget
from PyQt5.QtWidgets import QPushButton,QTextEdit
from PyQt5.QtCore import QSize  
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import (QApplication, QCheckBox, QColorDialog, QDialog,
                             QErrorMessage, QFileDialog, QFontDialog, QFrame, QGridLayout,
                             QInputDialog, QLabel, QLineEdit, QMessageBox, QPushButton, QMenu)

from PyQt5.QtCore import QDir, Qt
from PyQt5.QtWidgets import *
from PyQt5 import QtGui
from PyQt5.QtGui import QPainter, QColor, QPen,QCursor

class MainWindow(QMainWindow):
    fileName=""
    def __init__(self):
        QMainWindow.__init__(self)
        #self.setStyleSheet("background-color: white;") 
        self.setMinimumSize(QSize(1080, 720))    
        self.setWindowTitle("Simurg") 
        self.choose_file_button()
        self.textareaMain()
        self.textareaSimurg()
        self.selectItem()
        self.chooseSimurgFunciton()
        text=QPlainTextEdit()
        outputText = QTextEdit()

    def chooseSimurgFunciton(self):
        pybutton = QPushButton('Fonksiyonu Uygula', self)
        pybutton.resize(150,32)
        pybutton.move(460, 5)


    def choose_file_button(self):
        pybutton = QPushButton('Dosya Sec', self)
        pybutton.clicked.connect(self.chooseFile)
        pybutton.resize(100,32)
        pybutton.move(10, 5)

    def chooseFile(self):
        options = QFileDialog.Options()
        options |= QFileDialog.DontUseNativeDialog
        self.fileName, _ = QFileDialog.getOpenFileName(self,"QFileDialog.getOpenFileName()", "","All Files (*);;Python Files (*.py)", options=options)
        self.text.setPlainText(open(self.fileName).read())
        if self.fileName:
            print(self.fileName)
        print('Clicked Pyqt button.')

    def textareaMain(self):
        self.text = QPlainTextEdit(self)
        self.text.insertPlainText("Ana yazı buraya gelecek.\n")
        self.text.move(10,60) #1.para sol sağ 2. para alt-üst
        self.text.resize(525,450)
        #yazıldıkça veriyi çek.
        self.text.textChanged.connect(
            lambda: print(self.text.document().toPlainText()))
        self.text.selectionChanged.connect(self.handleSelectionChanged)
        

    def handleSelectionChanged(self):
        cursor = self.text.textCursor()
        print ("Selection start: %d end: %d" % 
           (cursor.selectionStart(), cursor.selectionEnd()))
        string=str(self.text.document().toPlainText())
        print("\033[1;31m"+string[cursor.selectionStart():cursor.selectionEnd()]+"\033[0m")
        word=string[cursor.selectionStart():cursor.selectionEnd()]
        redColor = QColor(255, 0, 0)
        blue = QColor(0, 0, 255)
        self.outputText.setTextColor(redColor)
        self.outputText.insertPlainText(" "+word)
        self.outputText.setTextBackgroundColor(blue)
        self.outputText.insertPlainText(" selam ")
        self.text.setContextMenuPolicy(Qt.CustomContextMenu)
        self.text.customContextMenuRequested.connect(self.showMenu)

    

    def showMenu(self,event):
        contextMenu = QMenu(self)
        newAct = contextMenu.addAction("New")
        openAct = contextMenu.addAction("Open")
        quitAct = contextMenu.addAction("Quit")
        action = contextMenu.exec_(self.mapToGlobal(event.pos()))
        if action == quitAct:
            self.close()

    def textareaSimurg(self):
        self.outputText = QTextEdit(self)
        self.outputText.insertPlainText("Simurg sonucu buraya gelecek. Altı çizili bir şekilde.\n")
        self.outputText.move(545,60) #1.para sol sağ 2. para alt-üst
        self.outputText.resize(525,450)

    def selectItem(self):
        self.combo_box = QComboBox(self)
        self.combo_box.setGeometry(150,5,300,30)
        geek_list = ["Lütfen Bir Fonksiyon Seçin","Kelime Türkçe Mi?","Doğru Bilinen Yanlışlar","Özne-Yüklem İlişkisi"]
        self.combo_box.addItems(geek_list)
        self.combo_box.setCurrentIndex(0)
        self.combo_box.currentIndexChanged.connect(self.selectionchange)
    
    def selectionchange(self,i):
        print ("Items in the list are :")
        for count in range(self.combo_box.count()):
            print (self.combo_box.itemText(count))
        print ("Current index",i,"selection changed ",self.combo_box.currentText())
        if(i==2):
            metin=self.text.document().toPlainText()

    


if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv) #def
    mainWin = MainWindow()
    mainWin.show()
    sys.exit( app.exec_() )

Answer 1

QWidget::customContextMenuRequested 信号传递一个QPoint 作为它的参数，所以showMenu 的参数也是一个QPoint。

将showMenu的定义改为（未测试）...

def showMenu(self,pos):
    contextMenu = QMenu(self)
    newAct = contextMenu.addAction("New")
    openAct = contextMenu.addAction("Open")
    quitAct = contextMenu.addAction("Quit")
    action = contextMenu.exec_(self.mapToGlobal(pos))
    if action == quitAct:
        self.close()