/// Rebuild data tree
void onRebuild();
- /// Validates the operation. Apply button is disabled if the widget value is in Modified state
- void onValueStateChanged();
+ /// Validates the operation to change the "Apply" button state.
+ /// \param thePreviousState the previous state of the widget
+ void onWidgetStateChanged(int thePreviousState);
/// Show property panel
void showPropertyPanel();