Respect locale decimal separator in input fields

Author: elpaso

src/gui/qgsfieldvalidator.cpp

@@ -56,7 +56,16 @@ QgsFieldValidator::QgsFieldValidator( QObject *parent, const QgsField &field, co
     {
       if ( mField.length() > 0 && mField.precision() > 0 )
       {
-        QString re = QStringLiteral( "-?\\d{0,%1}([\\.,]\\d{0,%2})?" ).arg( mField.length() - mField.precision() ).arg( mField.precision() );
+        QString re;
+        // Also accept locale's decimalPoint if it's not a dot
+        if ( QLocale().decimalPoint() != '.' )
+        {
+          re = QStringLiteral( "-?\\d{0,%1}([\\.%2]\\d{0,%3})?" ).arg( mField.length() - mField.precision() ).arg( QLocale().decimalPoint() ).arg( mField.precision() );
+        }
+        else
+        {
+          re = QStringLiteral( "-?\\d{0,%1}([\\.,]\\d{0,%2})?" ).arg( mField.length() - mField.precision() ).arg( mField.precision() );
+        }
         mValidator = new QRegExpValidator( QRegExp( re ), parent );
       }
       else if ( mField.length() > 0 && mField.precision() == 0 )
@@ -66,7 +75,16 @@ QgsFieldValidator::QgsFieldValidator( QObject *parent, const QgsField &field, co
       }
       else if ( mField.precision() > 0 )
       {
-        QString re = QStringLiteral( "-?\\d*([\\.,]\\d{0,%1})?" ).arg( mField.precision() );
+        QString re;
+        // Also accept locale's decimalPoint if it's not a dot
+        if ( QLocale().decimalPoint() != '.' )
+        {
+          re = QStringLiteral( "-?\\d*([\\.%1]\\d{0,%2})?" ).arg( QLocale().decimalPoint(), mField.precision() );
+        }
+        else
+        {
+          re = QStringLiteral( "-?\\d*([\\.]\\d{0,%1})?" ).arg( mField.precision() );
+        }
         mValidator = new QRegExpValidator( QRegExp( re ), parent );
       }
       else