QLocale request from country language to language name from this country German (de)

Code:

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QTextToSpeech *tessi = new QTextToSpeech(this);
     QVector<QLocale> localein =  tessi->availableLocales();
     QTextStream out(stdout);
       out << "QTextToSpeech availableLocales \n";
 
       foreach (const QLocale &locale, localein ) {
               int nr = (int)locale.language();
               QString country = QLocale::countryToString(locale.country());
               QString name(QString("%1 (%2)")
                            .arg(QLocale::languageToString(locale.language()))
                            .arg(locale.bcp47Name()));
               QVariant localeVariant(locale);
               out << "Lang Found:" << nr << "-" << name;
               out << "\n";
 
         }
       out << "end... \n";
       out.flush();

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How i can get the correct name from country self & language...

the result is :
Lang Found:31-English (en)
Lang Found:58-Italian (it)
Lang Found:114-Swedish (sv)
Lang Found:37-French (fr-CA)
Lang Found:42-German (de) but i wand "Deutsch"
Lang Found:48-Hebrew (he)
....... and other...

to get first 3 letter from https://github.com/tesseract-ocr/langdata
to download is data key... text key unicode qchar ecc...
example if i have the 3 first letter German ger not corect is deu "deutsch" its here a way? or write from hand a translate...

i solved whit a long long switch ... :p

Code:

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switch(id) {
      /* 8 - Arabic  الْعَرَبيّة  */
      case 8 : nt = QTUTF8decode("\xD8\xA7\xD9\x84\xD9\x92\xD8\xB9\xD9\x8E\xD8\xB1\xD9\x8E\xD8\xA8\xD9\x8A\xD9\x91\xD8\xA9");
               ctess= QStringLiteral("ara");
               break;
      /* 28 - Czech  čeština */
      case 28 : nt = QTUTF8decode("\xC4\x8D\x65\xC5\xA1\x74\x69\x6E\x61");
                ctess= QStringLiteral("ces");
               break;
      /* 29 - Danish dansk */
      case 29 : nt = QTUTF8decode("\x64\x61\x6E\x73\x6B");
               ctess= QStringLiteral("dan");
               break;
      /* 42 - German  deusch */
      case 42 : nt = QTUTF8decode("\x44\x65\x75\x73\x63\x68");
                ctess= QStringLiteral("deu");
              break;
      /* el - 43 - Greek - Greece     ελληνική/0  \xCE\xB5\xCE\xBB\xCE\xBB\xCE\xB7\xCE\xBD\xCE\xB9\xCE\xBA\xCE\xAE */
      case 43 : nt = QTUTF8decode("\xCE\xB5\xCE\xBB\xCE\xBB\xCE\xB7\xCE\xBD\xCE\xB9\xCE\xBA\xCE\xAE");
               ctess= QStringLiteral("null"); //// not having dir
               break;
      /* 31 - English  */
      case 31 : nt = QTUTF8decode("\x65\x6E\x67\x6C\x69\x73\x68");
              ctess= QStringLiteral("eng");
              break;
      /* 111 - Spanish castellà */

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