(****
 *
 * Module Windows defines the objects and operations related to controlling
 * the visibility of viewing windows.
 *
 *)
module Windows;

  from View import View;

  object WindowList
    components: Window*;
    description: (*
        A WindowList contains a list of the currently open windows in the
        calendar system.  This object is border-line for the abstract
        specification in that it relates to the manipulation of concrete UI
        objects.  However, in order to maintain platform independence, a window
        list and realted operations is considered necessary.
    *);
  end WindowList;

  object Window
    components: Title and View;
    description: (*
        A Window is an abstract UI window, the precise concrete represenation
        of which will be determined on a particular UI platform.  The only
        window information that is necessary at the abstract level is the
        title, which will be specified to contain a content-specific string.
        E.g., a window holding a monthly view will contain the title "Monthly
        View".
    *);
  end Window;

end Windows;