#include <QApplication>
#include <QMessageBox>
#include <QTextCodec>

int main(int argc, char *argv[])
{
    QApplication application(argc, argv);

    auto show = [](const QTextCodec * codec)
    {
        char16_t shorts[] = u"Ελλάδα 中国 ایران 🍔";
        QString sample = QString::fromUtf16(shorts);

        QString message = QStringLiteral("Encoding: ")
            + QString::fromLatin1(codec->name())
            + QLatin1String("\nAlso known as: ")
            + QString::fromLatin1(codec->aliases().join(" ,"))
            + QLatin1String("\n\nSample text: ")
            + sample
            + QLatin1String("\nSample length: ")
            + QString::number(std::size(sample))
            + QLatin1String("\n\nCan it encode the sample? ")
            + (codec->canEncode(sample) ? QStringLiteral("Yes") : QStringLiteral("No"))
            + QLatin1String("\nRound trip result: ")
            + codec->toUnicode(codec->fromUnicode(sample));
        QMessageBox::information(nullptr, "Test", message);
    };

    show(QTextCodec::codecForLocale());
    show(QTextCodec::codecForName("windows-1252"));
    show(QTextCodec::codecForName("utf-8"));

    return 0;
}