QTextEdit默认上下文菜单上的QTranslator

Question

我在PyQt5中使用qt_xx.qm从site-packages/PyQt5/translations文件夹翻译QTextEdit、QPlainTextEdit和QTextBrowser的默认上下文菜单时遇到了问题。例如，对于QLineEdit，它可以正常工作(这是相同的上下文菜单)。如何应对？

重现问题的代码：

# coding: utf-8

import sys

from PyQt5.QtCore import QLocale
from PyQt5.QtCore import QTranslator
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWidgets import QMainWindow
from PyQt5.QtWidgets import QWidget
from PyQt5.QtWidgets import QLineEdit
from PyQt5.QtWidgets import QTextEdit
from PyQt5.QtWidgets import QVBoxLayout


class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)

        widget = QWidget()

        lineEdit = QLineEdit()
        textEdit = QTextEdit()

        vbox = QVBoxLayout(widget)
        vbox.addWidget(lineEdit)
        vbox.addWidget(textEdit)

        self.setCentralWidget(widget)


if __name__ == '__main__':

    app = QApplication(sys.argv)
    locale = QLocale.system().name()

    qtTranslator = QTranslator()
    if qtTranslator.load('C:/Python33/Lib/site-packages/PyQt5/translations/qt_' + locale):
        app.installTranslator(qtTranslator)

    mainWindow = MainWindow()
    mainWindow.show()
    app.exec_()

Answer 1

我遇到了同样的问题，我试图通过修改通过调用QTextEdit::createStandardContext方法创建的标准上下文菜单来解决这个问题，它确实起作用了。

代码如下：

void CWQTextEdit::contextMenuEvent(QContextMenuEvent *e)
{
    QMenu *menu = QTextEdit::createStandardContextMenu();
    if (menu == NULL)
        return QTextEdit::contextMenuEvent(e);

    QList<QAction*> actions = menu->actions();

    foreach (QAction *action, actions)
    {
       QString actionText = action->text();
       if (actionText.contains("Undo"))
       {
           actionText.replace("Undo", tr("Undo"));
           action->setText(actionText);
       }
       else if (actionText.contains("Redo"))
       {
           actionText.replace("Redo", tr("Redo"));
           action->setText(actionText);
       }
       else if (actionText.contains("Cu&t"))
       {
           actionText.replace("Cu&t", tr("Cut"));
           action->setText(actionText);
       }
       else if (actionText.contains("Copy"))
       {
           actionText.replace("Copy", tr("Copy"));
           action->setText(actionText);
       }
       else if (actionText.contains("Paste"))
       {
           actionText.replace("Paste", tr("Paste"));
           action->setText(actionText);
       }
       else if (actionText.contains("Delete"))
       {
           actionText.replace("Delete", tr("Delete"));
           action->setText(actionText);
       }
       else if (actionText.contains("Select All"))
       {
           actionText.replace("Select All", tr("Select All"));
           action->setText(actionText);
       }
    }

    menu->exec(e->globalPos());
}

Answer 2

if __name__ == "__main__":
    app = QApplication(argv)
    translator = QtCore.QTranslator()
    translator.load("translations/qt_zh_CN.qm")
    app.installTranslator(translator)