+ /// Block the model flush of update and intialization of attribute
+ /// In additional to curstom realization it blocks initialization for all feature attributes
+ /// as the current attribute is selection but its modification leads to other attributes change
+ /// \param theAttribute an attribute
+ /// \param theToBlock flag whether the model is blocked or unblocked
+ /// \param isFlushesActived out value if model is blocked, in value if model is unblocked
+ /// to be used to restore flush state when unblocked
+ /// \param isAttributeSetInitializedBlocked out value if model is blocked
+ /// in value if model is unblocked to be used to restore previous state when unblocked
+ /// \param isAttributeSendUpdatedBlocked out value if model signal is blocked
+ virtual void blockAttribute(const AttributePtr& theAttribute, const bool& theToBlock,
+ bool& isFlushesActived,
+ bool& isAttributeSetInitializedBlocked,
+ bool& isAttributeSendUpdatedBlocked);
+
+ /// Returns true if envent is processed.
+ virtual bool processSelection();
+
+ /// Set the given wrapped value to the current widget
+ /// This value should be processed in the widget according to the needs
+ /// The method is called by the current operation to process the operation preselection.
+ /// It is redefined to do nothing if the plane of the sketch has been already set.
+ /// \param theValues the wrapped selection values
+ /// \param theToValidate a validation flag
+ bool setSelectionInternal(const QList<ModuleBase_ViewerPrsPtr>& theValues,
+ const bool theToValidate);
+