+/**
+* \ingroup Validators
+* A validator which checks that Point2D selected for feature attributes are different (not the same)
+* It iterates by the feature ModelAPI_AttributeRefAttr attributes, finds GeomDataAPI_Point2D attribute in
+* value or attribute of the attributes and if the point of the given attribute is geometrical equal to
+* a point of another attribute, returns false
+*/
+class PartSet_DifferentPointsValidator : public ModelAPI_AttributeValidator
+{
+ public:
+ //! Returns true if the attribute is good for the feature attribute
+ //! \param theAttribute an attribute
+ //! \param theArguments a list of arguments (names of attributes to check)
+ //! \param theError an output error string
+ virtual bool isValid(const AttributePtr& theAttribute,
+ const std::list<std::string>& theArguments,
+ Events_InfoMessage& theError) const;
+private:
+ //! Finds Point2D attribute by reference attribute. It might be:
+ //! - COORD_ID attribute of SketchPlugin_Point if object
+ //! - Attribute casted to point if attribute
+ //! \param theAttribute an attribute
+ //! \return point 2d attribute or NULL
+ std::shared_ptr<GeomDataAPI_Point2D> getRefPointAttribute
+ (const AttributePtr& theAttribute) const;
+};
+
+