localeselector.cpp Example File

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  #include "localeselector.h"

  #include <QLocale>

  LocaleSelector::LocaleSelector(QWidget *parent)
      : QComboBox(parent)
  {
      int curIndex = -1;
      int index = 0;
      for (int _lang = QLocale::C; _lang <= QLocale::LastLanguage; ++_lang) {
          QLocale::Language lang = static_cast<QLocale::Language>(_lang);
          foreach (const QLocale &l, QLocale::matchingLocales(lang, QLocale::AnyScript, QLocale::AnyCountry)) {
              QString label = QLocale::languageToString(l.language());
              label += QLatin1Char('/');
              label += QLocale::countryToString(l.country());
              // distinguish locales by script, if there are more than one script for a language/country pair
              if (QLocale::matchingLocales(l.language(), QLocale::AnyScript, l.country()).size() > 1)
                  label += QLatin1String(" (") + QLocale::scriptToString(l.script()) + QLatin1Char(')');

              addItem(label, QVariant::fromValue(l));

              if (l.language() == locale().language() && l.country() == locale().country()
                  && (locale().script() == QLocale::AnyScript || l.script() == locale().script())) {
                  curIndex = index;
              }
              ++index;
          }
      }
      if (curIndex != -1)
          setCurrentIndex(curIndex);

      connect(this, SIGNAL(activated(int)), this, SLOT(emitLocaleSelected(int)));
  }

  void LocaleSelector::emitLocaleSelected(int index)
  {
      QVariant v = itemData(index);
      if (!v.isValid())
          return;
      const QLocale l = v.value<QLocale>();
      emit localeSelected(l);
  }