'Check whether this item is enabled.
This check does not directly disable the item, but rather
sets the enabled-flag in the item which can then be used
by the renderer.
This function is called as the very last action immediately
before rendering the item. If it returns True, then the
enabled-flag of the item remains unchanged, otherwise
it gets set to False (False-override).'

def check_enabled(self):

    return True
