+ virtual std::shared_ptr<ModelAPI_Document> subDocument(std::string theDocID) = 0;
+
+ ///! Returns the id of the document
+ virtual const std::string& id() const = 0;
+
+ //! Returns the object in the group by the index (started from zero)
+ //! \param theGroupID group that contains an object
+ //! \param theIndex zero-based index of feature in the group
+ virtual std::shared_ptr<ModelAPI_Object> object(const std::string& theGroupID,
+ const int theIndex) = 0;
+
+ //! Returns the first found object in the group by the object name
+ //! \param theGroupID group that contains an object
+ //! \param theName name of the object to search
+ //! \returns null if such object is not found
+ virtual std::shared_ptr<ModelAPI_Object> objectByName(const std::string& theGroupID,
+ const std::string& theName) = 0;
+
+ //! Returns the object index in the group. Object must be visible. Otherwise returns -1.
+ //! \param theObject object of this document
+ //! \returns index started from zero, or -1 if object is invisible or belongs to another document
+ virtual const int index(std::shared_ptr<ModelAPI_Object> theObject) = 0;
+
+ //! Returns the number of objects in the group of objects
+ virtual int size(const std::string& theGroupID) = 0;
+
+ //! Returns the feature that is currently edited in this document, normally
+ //! this is the latest created feature
+ //! \param theVisible use visible features only: flag is true for Object Browser functionality
+ //! \returns null if next created feature must be the first
+ virtual std::shared_ptr<ModelAPI_Feature> currentFeature(const bool theVisible) = 0;
+
+ //! Sets the current feature: all features below will be disabled, new features
+ //! will be appended after this one.
+ //! \param theCurrent the selected feature as current: blow it everythin become disabled
+ //! \param theVisible use visible features only: flag is true for Object Browser functionality
+ virtual void setCurrentFeature(std::shared_ptr<ModelAPI_Feature> theCurrent,
+ const bool theVisible) = 0;
+ //! Makes the current feature one feature upper
+ virtual void setCurrentFeatureUp() = 0;
+
+ //! To virtually destroy the fields of successors
+ MODELAPI_EXPORT virtual ~ModelAPI_Document();
+
+ //! Creates a construction cresults
+ virtual std::shared_ptr<ModelAPI_ResultConstruction> createConstruction(
+ const std::shared_ptr<ModelAPI_Data>& theFeatureData, const int theIndex = 0) = 0;
+ //! Creates a body results
+ virtual std::shared_ptr<ModelAPI_ResultBody> createBody(
+ const std::shared_ptr<ModelAPI_Data>& theFeatureData, const int theIndex = 0) = 0;
+ //! Creates a part results
+ virtual std::shared_ptr<ModelAPI_ResultPart> createPart(
+ const std::shared_ptr<ModelAPI_Data>& theFeatureData, const int theIndex = 0) = 0;
+ //! Creates a group results
+ virtual std::shared_ptr<ModelAPI_ResultGroup> createGroup(
+ const std::shared_ptr<ModelAPI_Data>& theFeatureData, const int theIndex = 0) = 0;
+
+ virtual std::shared_ptr<ModelAPI_ResultParameter> createParameter(
+ const std::shared_ptr<ModelAPI_Data>& theFeatureData, const int theIndex = 0) = 0;
+
+ //! Returns a feature by result (owner of result)
+ virtual std::shared_ptr<ModelAPI_Feature> feature(
+ const std::shared_ptr<ModelAPI_Result>& theResult) = 0;
+
+ //! Returns all features of the document including the hidden features which are not in
+ //! history. Not very fast method, for calling once, not in big cycles.
+ virtual std::list<std::shared_ptr<ModelAPI_Feature> > allFeatures() = 0;
+
+ //! Informs the document that it becomes active and some actions must be performed
+ virtual void setActive(const bool theFlag) = 0;
+ //! Returns true if this document is currently active
+ virtual bool isActive() const = 0;
+
+ /// Returns true if document is opened and valid
+ virtual bool isOpened() = 0;