localeselector.cpp Example File

widgets/validators/localeselector.cpp
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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);
 }