Add the disable option of layout direction setting function automatically

bool QCoreApplication::installTranslator(QTranslator *translationFile)
{
    if (!translationFile)
        return false;
    if (!QCoreApplicationPrivate::checkInstance("installTranslator"))
        return false;
    QCoreApplicationPrivate *d = self->d_func();
    {
        QWriteLocker locker(&d->translateMutex);
        d->translators.prepend(translationFile);
    }
#ifndef QT_NO_TRANSLATION_BUILDER
    if (translationFile->isEmpty())
        return false;
#endif
#ifndef QT_NO_QOBJECT
    QEvent ev(QEvent::LanguageChange);
    QCoreApplication::sendEvent(self, &ev);
#endif
    return true;
}

bool QGuiApplication::event(QEvent *e)
{
    if(e->type() == QEvent::LanguageChange) {

//
// We don't want this code to run automatically
//
//        setLayoutDirection(qt_detectRTLLanguage()?Qt::RightToLeft:Qt::LeftToRight);
//
        for (auto *topLevelWindow : QGuiApplication::topLevelWindows()) {
            if (topLevelWindow->flags() != Qt::Desktop)
                postEvent(topLevelWindow, new QEvent(QEvent::LanguageChange));
        }
    } else if (e->type() == QEvent::Quit) {
..

static bool qt_detectRTLLanguage()
{
    return force_reverse ^
        (QGuiApplication::tr("QT_LAYOUT_DIRECTION",
                         "Translate this string to the string 'LTR' in left-to-right"
                         " languages or to 'RTL' in right-to-left languages (such as Hebrew"
                         " and Arabic) to get proper widget layout.") == QLatin1String("RTL"));
}