[locale] Add a 'current timezone' strings to Config

- status is a longer phrase
- name is a short human-readable name
- code is the internal code

Code that writes its own "Timezone set to" messages can use
the name, rather than the status.

src/modules/locale/Config.cpp

@@ -192,6 +192,9 @@ Config::Config( QObject* parent )
             QProcess::execute( "timedatectl",  // depends on systemd
                                { "set-timezone", location->region() + '/' + location->zone() } );
         }
+
+        emit currentTimezoneCodeChanged( currentTimezoneCode() );
+        emit currentTimezoneNameChanged( currentTimezoneName() );
     } );
 
     auto prettyStatusNotify = [&]() { emit prettyStatusChanged( prettyStatus() ); };
@@ -265,6 +268,7 @@ Config::setCurrentLocation( const CalamaresUtils::Locale::TimeZoneData* location
             emit currentLCStatusChanged( currentLCStatus() );
         }
         emit currentLocationChanged( m_currentLocation );
+        // Other signals come from the LocationChanged signal
     }
 }
 
@@ -323,6 +327,27 @@ Config::currentLocationStatus() const
               m_currentLocation ? m_currentLocation->zone() : QString() );
 }
 
+QString
+Config::currentTimezoneCode() const
+{
+    if ( m_currentLocation )
+    {
+        return m_currentLocation->region() + '/' + m_currentLocation->zone();
+    }
+    return QString();
+}
+
+QString
+Config::currentTimezoneName() const
+{
+    if ( m_currentLocation )
+    {
+        return m_regionModel->tr( m_currentLocation->region() ) + '/' + m_currentLocation->tr();
+    }
+    return QString();
+}
+
+
 static inline QString
 localeLabel( const QString& s )
 {

src/modules/locale/Config.h

@@ -48,7 +48,12 @@ class Config : public QObject
     Q_PROPERTY( QString currentLocationStatus READ currentLocationStatus NOTIFY currentLanguageStatusChanged )
     Q_PROPERTY( QString currentLanguageStatus READ currentLanguageStatus NOTIFY currentLanguageStatusChanged )
     Q_PROPERTY( QString currentLCStatus READ currentLCStatus NOTIFY currentLCStatusChanged )
+    // Name are shorter human-readable names
+    //   .. main difference is that status is a full sentence, like "Timezone is America/New York"
+    //      while name is just "America/New York" (and the code, below, is "America/New_York")
+    Q_PROPERTY( QString currentTimezoneName READ currentTimezoneName NOTIFY currentTimezoneNameChanged )
     // Code are internal identifiers, like "en_US.UTF-8"
+    Q_PROPERTY( QString currentTimezoneCode READ currentTimezoneCode NOTIFY currentTimezoneCodeChanged )
     Q_PROPERTY( QString currentLanguageCode READ currentLanguageCode WRITE setLanguageExplicitly NOTIFY
                     currentLanguageCodeChanged )
     Q_PROPERTY( QString currentLCCode READ currentLCCode WRITE setLCLocaleExplicitly NOTIFY currentLCCodeChanged )
@@ -119,6 +124,8 @@ public Q_SLOTS:
 
     QString currentLanguageCode() const { return localeConfiguration().language(); }
     QString currentLCCode() const { return localeConfiguration().lc_numeric; }
+    QString currentTimezoneName() const;  // human-readable
+    QString currentTimezoneCode() const;
 
 signals:
     void currentLocationChanged( const CalamaresUtils::Locale::TimeZoneData* location ) const;
@@ -128,6 +135,8 @@ signals:
     void prettyStatusChanged( const QString& ) const;
     void currentLanguageCodeChanged( const QString& ) const;
     void currentLCCodeChanged( const QString& ) const;
+    void currentTimezoneCodeChanged( const QString& ) const;
+    void currentTimezoneNameChanged( const QString& ) const;
 
 private:
     /// A list of supported locale identifiers (e.g. "en_US.UTF-8")