Can't have application menu bar in english on OSX french

[nelbok]

Hello,

I would like to launch application in a other language than the OSX settings.
So I have followed this documentation: http://doc.qt.io/qt-5/internationalization.html#enabling-translation
It works fine for other langages like Spanish or Chinese.

But when it comes to english, QTranslator::load fail to load the qt english translation file.
So I have my application in english but not the OSX application menu bar.

What I am doing wrong ?

Here the code:

QString lang = "en"; // Or de, es, it, ru, ...
QTranslator *translator = new QTranslator(this);

bool loadOK = translator->load("qt_" + lang, QLibraryInfo::location(QLibraryInfo::TranslationsPath));
bool installOK = false;
if (loadOK)
    installOK = qApp->installTranslator(translator);
else
    translator->deleteLater();

qDebug() << "Qt translations path: " << QLibraryInfo::location(QLibraryInfo::TranslationsPath);
qDebug() << "Translator: " << "qt_" + lang << " - load: " << loadOK << " - install: " << installOK;

/* For en, the result are:
    Qt translations path: "/Users/[username]/Qt/5.5/clang_64/translations"
    Translator: "qt_en" - load: false - install: false
    */

Regards,

nelbok

[SGaist]

Hi and welcome to devnet,

The menu bar is a special case in OS X. Take a look here, it describes how to handle the menu bar translation.

Hope it helps

[nelbok]

Thanks SGaist,

I have tested your link, but it doesn't work. So i tested other things and i found something strange.
With QtWidgets, the application menu bar is translated nice. I don't have the problem.
But with QML, i have the problem.

So i have the problem only with QML. Actually, i have tested on :

• Mountain Lion: Qt 5.5.1 and xcode 5.1.1
• Mavericks: Qt 5.5.1 and xcode 5.1.1

There are a special thing to do with QML ?

Regards,

nelbok

[SGaist]

Can you share a minimal sample project on e.g. github that shows that behavior ?

[nelbok]

Sorry for the wait.

Here two examples :

• one with Qt Widgets where all work well : https://github.com/nelbok/SRPTest/tree/master/widgetsMenuBar
• one with Qt Quick where i can't have English on OSX French : https://github.com/nelbok/SRPTest/tree/master/quickMenuBar

For the moment, i have a work around. I create a english translation to manually set the correct values.
I have getted the source of translations module with the Qt installer to have the key translations...

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE TS>
<TS version="2.1" language="en">
<context>
    <name>MAC_APPLICATION_MENU</name>
    <message>
        <source>Services</source>
        <translation>Services</translation>
    </message>
    <message>
        <source>Hide %1</source>
        <translation>Hide %1</translation>
    </message>
    <message>
        <source>Hide Others</source>
        <translation>Hide Others</translation>
    </message>
    <message>
        <source>Show All</source>
        <translation>Show All</translation>
    </message>
    <message>
        <source>Preferences...</source>
        <translation>Preferences...</translation>
    </message>
    <message>
        <source>Quit %1</source>
        <translation>Quit %1</translation>
    </message>
    <message>
        <source>About %1</source>
        <translation>About %1</translation>
    </message>
</context>
</TS>

Regards,

nelbok

[SGaist]

Since my system is in english I've tested both applications loading the german translation file and both worked correctly but I have Qt version that is more recent than you.

Can you check again with the 5.6 Beta ?

[nelbok]

Hello,

After downloaded and installed qt-opensource-mac-x64-clang-5.6.0-beta.dmg.
On my OSX french and for the QML project, it does not work, i have the application menu bar in french and not in english.

Also, when i run the two project, they say that they can't load qt_en in the output log.

Regards,

nelbok

[SGaist]

Does it also fail if you change qt_en by qt_de ?

[nelbok]

When i change lang to de, with Qt 5.5.1 or 5.6, it works fine.

[SGaist]

So it seems that for some reason there's something funky with the english translation going on...

[SGaist]

I just realized, Qt is already written in english so it's pretty likely that the qt_en.qm file is empty. So if you need english translation of your non-english written application, you have to provide the english translation of your application. Personally, I'd recommend writing your application in english and provide translations for the other languages.

[nelbok]

Hello,

That not the problem here.
If i understand correctly, the OSX Application Menu is translated by Qt, not my application.
The problem occurs only with QtQuick and on a OSX no-english.

So why i must do give a translated file created by me for QtQuick and not for QtWidgets ? (And not the translated files qt)

Regards,

nelbok