i18n: inglese come lingua di default (era 'system'); copertura catalogo IT completa (Astro -> Sole e Luna)

README.md

@@ -16,8 +16,8 @@ local harmonic engine (no tide API: offline computation, forever).
 - **24/48/72 h chart** with high/low tides marked with times, tap for the
   height at a given point
 - **Moon phase and sunrise/sunset** computed
-- **Italian and English** (language selector in settings, applied on app
-  restart; `.qm` catalogue in the app data dir)
+- **English by default, Italian and English** (language selector in settings:
+  English / Italiano / System; `.qm` catalogue in the app data dir)
 - **Saved preferences**: language, preferred port (opened at startup and
   shown on the cover), unit (m/ft), chart range
 

src/settings.cpp

@@ -8,7 +8,9 @@ Settings::Settings(QObject *parent)
 
 QString Settings::language() const
 {
-    return m_settings.value(QStringLiteral("language"), QStringLiteral("system")).toString();
+    // default: inglese (stringhe sorgente). "system" segue la lingua UI
+    // Sailfish, "it" usa il catalogo harbour-tide_it.qm
+    return m_settings.value(QStringLiteral("language"), QStringLiteral("en")).toString();
 }
 
 void Settings::setLanguage(const QString &value)

src/settings.h

@@ -5,7 +5,7 @@
 #include <QSettings>
 
 // Preferenze dell'app, persistite in QSettings ("harbour", "tide"):
-//   language       "system" (segue la lingua UI Sailfish) | "en" | "it"
+//   language       "en" (default, stringhe sorgente) | "it" | "system"
 //   preferredPort  nome del porto preferito (vuoto = nessuno)
 //   preferredLat/Lon  coordinate del preferito se è un comune (custom)
 //   unit           "m" | "ft"

translations/harbour-tide.ts

@@ -35,6 +35,7 @@
     <message><source>Low</source><translation type="unfinished"></translation></message>
     <message><source>Moon</source><translation type="unfinished"></translation></message>
     <message><source>Sunrise / sunset</source><translation type="unfinished"></translation></message>
+    <message><source>Astro</source><translation type="unfinished"></translation></message>
     <message><source>Typical range</source><translation type="unfinished"></translation></message>
     <message><source>age %1 d</source><translation type="unfinished"></translation></message>
     <message><source>(solar time)</source><translation type="unfinished"></translation></message>

translations/harbour-tide_it.ts

@@ -35,6 +35,7 @@
     <message><source>Low</source><translation>Bassa</translation></message>
     <message><source>Moon</source><translation>Luna</translation></message>
     <message><source>Sunrise / sunset</source><translation>Alba / tramonto</translation></message>
+    <message><source>Astro</source><translation>Sole e Luna</translation></message>
     <message><source>Typical range</source><translation>Escursione tipica</translation></message>
     <message><source>age %1 d</source><translation>età %1 g</translation></message>
     <message><source>(solar time)</source><translation>(ora solare)</translation></message>