+ /// Validates the operation to change the "Apply" button state.\r
+ /// \param thePreviousState the previous state of the widget\r
+ virtual void widgetStateChanged(int thePreviousState) {};\r
+\r
+ /// Returns true if the event is processed.\r
+ /// \param thePreviousAttributeID an index of the previous active attribute\r
+ virtual bool processEnter(const std::string& thePreviousAttributeID) { return false; };\r
+\r
+ /// Performs some GUI actions after an operation transaction is opened\r
+ /// Default realization is empty\r
+ virtual void beforeOperationStarted(ModuleBase_Operation* theOperation) {};\r
+\r
+ /// Performs some GUI actions before an operation transaction is stopped\r
+ /// Default realization is empty\r
+ virtual void beforeOperationStopped(ModuleBase_Operation* theOperation) {};\r
+\r