fixed a locale display bug

2048-qt.pro

@@ -31,7 +31,7 @@ HEADERS += \
 
 TRANSLATIONS = ts/2048-qt_zh_CN.ts
 
-VERSION = 0.1.1
+VERSION = 0.1.2
 
 VERSTR = '\\"$${VERSION}\\"'
 DEFINES += VER=\"$${VERSTR}\"

main.cpp

@@ -13,7 +13,13 @@ int main(int argc, char *argv[])
     settings.setVersion(QString(VER));
 
     // Localization
-    QString locale = settings.value("language", QLocale::system().name()).toString();
+    QString locale;
+    if (settings.contains("language")) {
+        locale = settings.value("language").toString();
+    } else {
+        locale = QLocale::system().name();
+        settings.setValue("language", locale);
+    }
     QString tsFile = "2048-qt_" + locale;
 
     QTranslator translator;

qml/main.qml

@@ -93,9 +93,9 @@ ApplicationWindow {
                     text: qsTr("English")
                     checkable: true
                     exclusiveGroup: languageSettingsGroup
-                    checked: settings.value("language", "en_US") === "en_US" ? true : false
+                    checked: settings.value("language") === "en_US" ? true : false
                     onTriggered: {
-                        if (settings.value("language", "en_US") !== "en_US") {
+                        if (settings.value("language") !== "en_US") {
                             settings.setValue("language", "en_US");
                             changeLanguageDialog.open();
                         }
@@ -105,9 +105,9 @@ ApplicationWindow {
                     text: qsTr("Simplified Chinese")
                     checkable: true
                     exclusiveGroup: languageSettingsGroup
-                    checked: settings.value("language", "en_US") === "zh_CN" ? true : false
+                    checked: settings.value("language") === "zh_CN" ? true : false
                     onTriggered: {
-                        if (settings.value("language", "en_US") !== "zh_CN") {
+                        if (settings.value("language") !== "zh_CN") {
                             settings.setValue("language", "zh_CN");
                             changeLanguageDialog.open();
                         }

settings.cpp

@@ -8,6 +8,10 @@ Settings::~Settings() {
     delete settings_;
 }
 
+bool Settings::contains(const QString & key) const {
+    return settings_->contains(key);
+}
+
 void Settings::setValue(const QString &key, const QVariant &value) {
     settings_->setValue(key, value);
 }

settings.h

@@ -16,6 +16,7 @@ public:
     Q_INVOKABLE QString getVersion();
 
     void setVersion(const QString version);
+    bool contains(const QString & key) const;
 
 signals: