'Adjust the save/revert buttons and alert the tree of the change.
:param like_initial: if the widgets are modified or not.
It only will be called if any widget changed its state, through
a propagation buffer.'

def _changedAnyWidget(self, like_initial):

    self.save_btn.set_sensitive((not like_initial))
    self.rvrt_btn.set_sensitive((not like_initial))
    self.parentwidg.config_changed(like_initial)
    self.saved_successfully = False
