localeselector.cpp Example File | Qt Widgets 5.12.10

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- localeselector.cpp Example File
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# 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);
     }