Designer: Fix crash on unsupported Language/Country combination.

...in the property editor (QLocale).

Reviewed-by: Denis Dzyubenko <denis.dzyubenko@nokia.com>
Task-number: QTBUG-13267
Task-number: QTCREATORBUG-2212

1 files changed, 14 insertions, 6 deletions

diff --git a/tools/shared/qtpropertybrowser/qtpropertymanager.cpp b/tools/shared/qtpropertybrowser/qtpropertymanager.cpp
index d9ff10aa7c..a0bef0acc3 100644
--- a/tools/shared/qtpropertybrowser/qtpropertymanager.cpp
+++ b/tools/shared/qtpropertybrowser/qtpropertymanager.cpp
@@ -2399,15 +2399,23 @@ QString QtLocalePropertyManager::valueText(const QtProperty *property) const
     if (it == d_ptr->m_values.constEnd())
         return QString();
 
-    QLocale loc = it.value();
+    const QLocale loc = it.value();
 
     int langIdx = 0;
     int countryIdx = 0;
-    metaEnumProvider()->localeToIndex(loc.language(), loc.country(), &langIdx, &countryIdx);
-    QString str = tr("%1, %2")
-            .arg(metaEnumProvider()->languageEnumNames().at(langIdx))
-            .arg(metaEnumProvider()->countryEnumNames(loc.language()).at(countryIdx));
-    return str;
+    const QtMetaEnumProvider *me = metaEnumProvider();
+    me->localeToIndex(loc.language(), loc.country(), &langIdx, &countryIdx);
+    if (langIdx < 0) {
+        qWarning("QtLocalePropertyManager::valueText: Unknown language %d", loc.language());
+        return tr("<Invalid>");
+    }
+    const QString languageName = me->languageEnumNames().at(langIdx);
+    if (countryIdx < 0) {
+        qWarning("QtLocalePropertyManager::valueText: Unknown country %d for %s", loc.country(), qPrintable(languageName));
+        return languageName;
+    }
+    const QString countryName = me->countryEnumNames(loc.language()).at(countryIdx);
+    return tr("%1, %2").arg(languageName, countryName);
 }
 
 /*!