@staticmethod
def supportedViews():
    """Return the views that this control supports.

        This method may be overridden by sub-classes to return a list of
        the view types that are supported by this control. For example, the
        :class:`.OrthoToolBar` control is intended to be used solely with the
        :class:`.OrthoPanel` view.

        The default implementation returns ``None``, which is interpreted
        as being compatible with all views.
        """
    return None
