+ /// Virtual method called when operation aborted (see abort() method for more description)
+ /// Before the feature is aborted, it should be hidden from the viewer
+ virtual void abortOperation();
+
+ /// Virtual method called when operation stopped - committed or aborted.
+ /// Restore the multi selection state
+ virtual void stopOperation();
+
+ /// Creates an operation new feature
+ /// In addition to the default realization it appends the created line feature to
+ /// the sketch feature
+ /// \returns the created feature
+ virtual boost::shared_ptr<ModelAPI_Feature> createFeature();
+
+ /// Creates a constraint on two points
+ /// \param thePoint1 the first point
+ /// \param thePoint1 the second point
+ void createConstraint(boost::shared_ptr<GeomDataAPI_Point2D> thePoint1,
+ boost::shared_ptr<GeomDataAPI_Point2D> thePoint2);
+
+ /// Creates constrains of the current
+ /// \param theX the horizontal coordnate of the point
+ /// \param theY the vertical coordnate of the point
+ void setConstraints(double theX, double theY);
+protected:
+ /// \brief Get the line point 2d coordinates.
+ /// \param theFeature the line feature
+ /// \param theAttribute the start or end attribute of the line
+ /// \param theX the horizontal coordinate
+ /// \param theY the vertical coordinate
+ void getLinePoint(boost::shared_ptr<ModelAPI_Feature> theFeature, const std::string& theAttribute,
+ double& theX, double& theY);
+ /// Find a point in the line with given coordinates
+ /// \param theFeature the line feature
+ /// \param theX the horizontal point coordinate
+ /// \param theY the vertical point coordinate
+ boost::shared_ptr<GeomDataAPI_Point2D> findLinePoint(boost::shared_ptr<ModelAPI_Feature> theFeature,
+ double theX, double theY);
+
+ /// \brief Save the point to the line.
+ /// \param theX the horizontal coordinate
+ /// \param theY the vertical coordinate
+ /// \param theAttribute the start or end attribute of the line
+ void setLinePoint(double theX, double theY, const std::string& theAttribute);
+ /// \brief Save the point to the line.
+ /// \param thePoint the 3D point in the viewer
+ /// \param theAttribute the start or end attribute of the line
+ void setLinePoint(const gp_Pnt& thePoint, Handle(V3d_View) theView, const std::string& theAttribute);
+
+protected:
+ ///< Structure to lists the possible types of point selection modes
+ enum PointSelectionMode {SM_FirstPoint, SM_SecondPoint};
+