+ virtual void keyReleased(const int theKey);
+
+ virtual void keyReleased(std::string theName, QKeyEvent* theEvent);
+
+ /// Emits a signal about the operation start. This signal has an information about the feature.
+ /// If the provided feature is empty, the current operation feature is used.
+ /// \param theType a type of an operation started
+ /// theFeature the operation argument
+ void restartOperation(const std::string& theType,
+ FeaturePtr theFeature = FeaturePtr());