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""" Abstract base class for all preference pages. """


from traits.api import HasTraits


# fixme: in JFace this extends from 'DialogPage' which we don't have yet!
class PreferencePage(HasTraits):
    """ Abstract base class for all preference pages. """

    # ------------------------------------------------------------------------
    # 'PreferencePage' interface.
    # ------------------------------------------------------------------------

    def create_control(self, parent):
        """ Creates the toolkit-specific control for the page. """

        raise NotImplementedError()

    def restore_defaults(self):
        """ Restore the default preferences. """

        pass

    def show_help_topic(self):
        """ Show the help topic for this preference page."""

        pass