[SailfishDevel] Adding localization to sailfish app

[Antoine Reversat]

Hi,

I added localization to my sailfishos app, as I didn't see a real example
here I thought I'd post one for the sake of archiving (and googling).

The way it works is that I install qm files to
/usr/share/$NAME/localization the qm files are of the form <2 letter
language code>.qm, you could be more precise and produce e.g fr_FR.qm files
(see http://qt-project.org/doc/qt-5.0/qtcore/qtranslator.html#load). Here
is the relevant main function :

int main(int argc, char *argv[])
{
    QGuiApplication* app =  SailfishApp::application(argc, argv);
    QString locale = QLocale::system().name();

    QTranslator translator;

translator.load(locale,SailfishApp::pathTo(QString("localization")).toLocalFile());
    app->installTranslator(&translator);
    return SailfishApp::main(argc, argv);
}

And relevant parts in my .pro

localization.files = localization
localization.path = /usr/share/$${TARGET}

INSTALLS += localization

lupdate_only {
    SOURCES = qml/*.qml \
                qml/pages/*.qml
    TRANSLATIONS = localization/fr.ts \
                    localization/en.ts
}

I think this could be integrated into libsailfishapp with lrelease being
integrated in the build process, it would then only be a matter of running
lupdate and making the translations, the rest would be automatic.

Antoine
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