DoubleSpinBox::m_valueProperty now const

GUI/View/Numeric/DoubleSpinBox.cpp

@@ -16,7 +16,7 @@
 #include "GUI/View/Numeric/NumberUtil.h"
 #include <QWheelEvent>
 
-DoubleSpinBox::DoubleSpinBox(DoubleProperty& d, bool easyScrollable, QWidget* parent)
+DoubleSpinBox::DoubleSpinBox(const DoubleProperty& d, bool easyScrollable, QWidget* parent)
     : QDoubleSpinBox(parent)
     , m_valueProperty(d)
     , m_easyScrollable(easyScrollable)

GUI/View/Numeric/DoubleSpinBox.h

@@ -27,7 +27,7 @@ public:
     //! policy). Furthermore, the spin box will prohibit accidental changes by the mouse wheel.
     //! Otherwise it would be dangerous if the spin box is on a scrollable form - unintended and
     //! unnoticed changes would take place when just scrolling through the form.
-    DoubleSpinBox(DoubleProperty& d, bool easyScrollable = false, QWidget* parent = nullptr);
+    DoubleSpinBox(const DoubleProperty& d, bool easyScrollable = false, QWidget* parent = nullptr);
 
     //! Set the value
     void setBaseValue(double value);
@@ -47,7 +47,7 @@ private:
     void wheelEvent(QWheelEvent* event) override;
     void onDisplayValueChanged(double newDisplayValue);
 
-    DoubleProperty& m_valueProperty;
+    const DoubleProperty& m_valueProperty;
     bool m_easyScrollable;
 };