Date picker now correctly aligned in all locales

src/monthmodel.cpp

@@ -125,7 +125,7 @@ QVariant MonthModel::data(const QModelIndex &index, int role) const
 
     if (!index.parent().isValid()) {
         // Fetch days in month
-        int prefix = d->calendar.dayOfWeek(QDate(d->year, d->month, 1)) - 1;
+        int prefix = d->calendar.dayOfWeek(QDate(d->year, d->month, 1)) - m_locale.firstDayOfWeek();
 
         if (prefix <= 1) {
             prefix += 7;

src/monthmodel.h

@@ -6,6 +6,7 @@
 #include <QAbstractListModel>
 #include <QCalendar>
 #include <QDate>
+#include <QLocale>
 #include <memory>
 
 /// Month model exposing month days and events to a QML view.
@@ -62,5 +63,6 @@ Q_SIGNALS:
 
 private:
     class Private;
+    QLocale m_locale;
     std::unique_ptr<Private> d;
 };