localizationpyqtpyqt4qfiledialog

PyQt4: QFileDialog and QFontDialog localization


Subj: is it possible? For example, can I translate QtGui.QFileDialog().getSaveFileName() button "Save" to "Conservare", and "Cancel" to "Ignorare"? Is it possible to create my class based on QFileDialog/QFontDialog without inventing a velocity? Someone said that these functions will be always translated, depending os system locale. Don't believe, my Russian version of OpenSUSE says that it is a lie. :-) And Russian Windows 7 has a such behaviour. All strings which I see on my systems are English. I'm not a nationalist, but I want to use strings in other languages. :-) Thanks!


Solution

  • A standard Qt installation should include 20 or so translation files for the Qt library itself. These files can be found at runtime by using QLocale and QLibraryInfo to construct the arguments used by QTranslator.load. Further details can be found in this section of the Qt i18n docs.

    Here's a basic PyQt4 example:

    from PyQt4 import QtGui, QtCore
    
    class Window(QtGui.QWidget):
        def __init__(self):
            QtGui.QWidget.__init__(self)
            self.buttons = QtGui.QDialogButtonBox(self)
            button = self.buttons.addButton(QtGui.QDialogButtonBox.Open)
            button.clicked.connect(self.handleOpen)
            button = self.buttons.addButton(QtGui.QDialogButtonBox.Close)
            button.clicked.connect(self.close)
            layout = QtGui.QVBoxLayout(self)
            layout.addWidget(self.buttons)
    
        def handleOpen(self):
            dialog = QtGui.QFileDialog()
            dialog.exec_()
    
    if __name__ == '__main__':
    
        import sys
        app = QtGui.QApplication(sys.argv)
        translator = QtCore.QTranslator()
        if len(sys.argv) > 1:
            locale = sys.argv[1]
        else:
            locale = QtCore.QLocale.system().name()
        name = 'qt_%s' % locale
        path = QtCore.QLibraryInfo.location(QtCore.QLibraryInfo.TranslationsPath)
        if translator.load(name, path):
            app.installTranslator(translator)
        else:
            print('ERROR: could not load translation file:'
                  ' name=%r, path=%r' % (name, path))
        window = Window()
        window.show()
        sys.exit(app.exec_())