virtual const std::string& kind() const = 0;
//! Removes document data
- virtual void close() = 0;
+ //! \param theForever if it is false, document is just hiden (to keep possibility make it back on Undo/Redo)
+ virtual void close(const bool theForever = false) = 0;
//! Adds to the document the new feature of the given feature id
//! \param creates feature and puts it in the document (if it is not action)
