src/FactSystem/FactValueSliderListModel.cc

@@ -27,7 +27,7 @@ FactValueSliderListModel::FactValueSliderListModel(Fact& fact, QObject* parent)
     , _cPrevValues              (0)
     , _cNextValues              (0)
     , _initialValue             (0)
-    , _initialValueRounded      (0)
+    , _initialValueAtPrecision  (0)
     , _increment                (0)
 {
     QQmlEngine::setObjectOwnership(this, QQmlEngine::CppOwnership);
@@ -47,14 +47,14 @@ int FactValueSliderListModel::resetInitialValue(void)
     }
 
     _initialValue = _fact.cookedValue().toDouble();
-    _initialValueRounded = qRound(_initialValue);
+    _initialValueAtPrecision = _valueAtPrecision(_initialValue);
     if (qRound(_fact.rawIncrement()) == _fact.rawIncrement()) {
         _increment = qRound(_fact.cookedIncrement());
     } else {
         _increment = _fact.cookedIncrement();
     }
-    _cPrevValues = qMin((_initialValue - _fact.cookedMin().toDouble()), 100.0) / _increment;
-    _cNextValues = qMin((_fact.cookedMax().toDouble() - _initialValue), 100.0) / _increment;
+    _cPrevValues = qMin((_initialValue - _fact.cookedMin().toDouble())  / _increment, 100.0);
+    _cNextValues = qMin((_fact.cookedMax().toDouble() - _initialValue)  / _increment, 100.0);
     _initialValueIndex = _cPrevValues;
 
     int totalValueCount = _cPrevValues + 1 + _cNextValues;
@@ -93,12 +93,9 @@ QVariant FactValueSliderListModel::data(const QModelIndex &index, int role) cons
         if (cIncrementCount == 0) {
             value = _initialValue;
         } else {
-            value = _initialValueRounded + (cIncrementCount * _increment);
+            value = initialValueAtPrecision() + (cIncrementCount * _increment);
         }
-        double precision = qPow(10, _fact.decimalPlaces());
-        double atPrecision = qRound(value * precision) / precision;
-        //qDebug() << value << precision << atPrecision << _fact.decimalPlaces() << _fact.name();
-        return QVariant(atPrecision);
+        return QVariant(_valueAtPrecision(value));
     } else if (role == _valueIndexRole) {
         return QVariant::fromValue(valueIndex);
     } else {
@@ -129,8 +126,8 @@ int FactValueSliderListModel::valueIndexAtModelIndex(int index)
     return data(createIndex(index, 0), _valueIndexRole).toInt();
 }
 
-double FactValueSliderListModel::initialValueAtPrecision(void)
+double FactValueSliderListModel::_valueAtPrecision(double value) const
 {
     double precision = qPow(10, _fact.decimalPlaces());
-    return qRound(_initialValue * precision) / precision;
+    return qRound(value * precision) / precision;
 }

src/FactSystem/FactValueSliderListModel.h

@@ -25,7 +25,7 @@ public:
     /// The initial value of the Fact at the meta data specified decimal place precision
     Q_PROPERTY(double initialValueAtPrecision READ initialValueAtPrecision NOTIFY initialValueAtPrecisionChanged)
 
-    double initialValueAtPrecision(void);
+    double initialValueAtPrecision(void) const { return _initialValueAtPrecision; }
 
     Q_INVOKABLE int resetInitialValue(void);
     Q_INVOKABLE double valueAtModelIndex(int index);
@@ -35,6 +35,8 @@ signals:
     void initialValueAtPrecisionChanged(void);
 
 private:
+    double _valueAtPrecision(double value) const;
+
     // Overrides from QAbstractListModel
     int	rowCount(const QModelIndex & parent = QModelIndex()) const override;
     QVariant data(const QModelIndex & index, int role = Qt::DisplayRole) const override;
@@ -48,7 +50,7 @@ private:
     int     _cNextValues;
     int     _windowSize;
     double  _initialValue;
-    double  _initialValueRounded;
+    double  _initialValueAtPrecision;
     double  _increment;
 
     static const int _valueRole;