[welcome] Another find() overload

- Also find a specific locale
 - While here, apply Calamares coding style

src/modules/welcome/LocaleModel.cpp

@@ -18,7 +18,7 @@
 
 #include "LocaleModel.h"
 
-LocaleModel::LocaleModel(const QStringList& locales, QObject* parent)
+LocaleModel::LocaleModel( const QStringList& locales, QObject* parent )
     : QAbstractTableModel( parent )
 {
     Q_ASSERT( locales.count() > 0 );
@@ -56,17 +56,17 @@ LocaleModel::data( const QModelIndex& index, int role ) const
     const auto& locale = m_locales.at( index.row() );
     switch ( index.column() )
     {
-        case 0:
-            return locale.label();
-        case 1:
-            return locale.englishLabel();
-        default:
-            return QVariant();
+    case 0:
+        return locale.label();
+    case 1:
+        return locale.englishLabel();
+    default:
+        return QVariant();
     }
 }
 
-const CalamaresUtils::LocaleLabel& 
-LocaleModel::locale(int row)
+const CalamaresUtils::LocaleLabel&
+LocaleModel::locale( int row )
 {
     if ( ( row < 0 ) || ( row >= m_locales.count() ) )
     {
@@ -78,8 +78,8 @@ LocaleModel::locale(int row)
     return m_locales[row];
 }
 
-int 
-LocaleModel::find(std::function<bool (const LocaleLabel &)> predicate) const
+int
+LocaleModel::find( std::function<bool ( const LocaleLabel& )> predicate ) const
 {
     for ( int row = 0; row < m_locales.count() ; ++row )
     {
@@ -89,8 +89,20 @@ LocaleModel::find(std::function<bool (const LocaleLabel &)> predicate) const
     return -1;
 }
 
-int 
-LocaleModel::find(std::function<bool (const QLocale &)> predicate) const
+int
+LocaleModel::find( std::function<bool ( const QLocale& )> predicate ) const
 {
-    return find( [&]( const LocaleLabel& l ){ return predicate( l.locale() ); } );
+    return find( [&]( const LocaleLabel& l )
+    {
+        return predicate( l.locale() );
+    } );
+}
+
+int
+LocaleModel::find( const QLocale& locale ) const
+{
+    return find( [&]( const LocaleLabel& l )
+    {
+        return locale == l.locale();
+    } );
 }

src/modules/welcome/LocaleModel.h

@@ -29,7 +29,7 @@ class LocaleModel : public QAbstractTableModel
 {
 public:
     using LocaleLabel = CalamaresUtils::LocaleLabel;
-    
+
     LocaleModel( const QStringList& locales, QObject* parent = nullptr );
     virtual ~LocaleModel() override;
 
@@ -39,18 +39,19 @@ public:
     QVariant data( const QModelIndex& index, int role ) const override;
 
     /** @brief Gets locale information for entry #n
-     * 
+     *
      * This is the backing data for the model; if @p row is out-of-range,
      * returns a reference to en_US.
      */
     const LocaleLabel& locale( int row );
-    
+
     /** @brief Searches for an item that matches @p predicate
-     * 
+     *
      * Returns the row number of the first match, or -1 if there isn't one.
      */
-    int find( std::function<bool(const QLocale&)> predicate) const;
-    int find( std::function<bool(const LocaleLabel&)> predicate) const;
+    int find( std::function<bool( const QLocale& )> predicate ) const;
+    int find( std::function<bool( const LocaleLabel& )> predicate ) const;
+    int find( const QLocale& ) const;
 
 private:
     QVector< LocaleLabel > m_locales;