+ QModelIndex featureIndex(const FeaturePtr theFeature) const;
+
+ //! Returns QModelIndex which corresponds to the given feature if this is a part
+ //! If the feature is not found then index is not valid
+ QModelIndex partIndex(const FeaturePtr& theFeature) const;
+
+ //! Activates a part data model if the index is a Part node index.
+ //! Returns true if active part changed.
+ bool activatedIndex(const QModelIndex& theIndex);
+
+ //! Retrurns Feature which corresponds to active part
+ FeaturePtr activePart() const;
+
+ //! Retrurns QModelIndex of active part
+ QModelIndex activePartIndex() const { return myActivePartIndex; }
+
+ //! Deactivates a Part
+ void deactivatePart();
+
+ void rebuildDataTree();
+