elk/lib/xwidgets/motif/scrolled-win.d

;; scrolled-win.d
;;
;; $Id$
;;
;; Copyright 1990, 1991, 1992, 1993, 1994, 1995, Oliver Laumann, Berlin
;; Copyright 2002, 2003 Sam Hocevar <sam@hocevar.net>, Paris
;;
;; This software was derived from Elk 1.2, which was Copyright 1987, 1988,
;; 1989, Nixdorf Computer AG and TELES GmbH, Berlin (Elk 1.2 has been written
;; by Oliver Laumann for TELES Telematic Services, Berlin, in a joint project
;; between TELES and Nixdorf Microprocessor Engineering, Berlin).
;;
;; Oliver Laumann, TELES GmbH, Nixdorf Computer AG and Sam Hocevar, as co-
;; owners or individual owners of copyright in this software, grant to any
;; person or company a worldwide, royalty free, license to
;;
;;    i) copy this software,
;;   ii) prepare derivative works based on this software,
;;  iii) distribute copies of this software or derivative works,
;;   iv) perform this software, or
;;    v) display this software,
;;
;; provided that this notice is not removed and that neither Oliver Laumann
;; nor Teles nor Nixdorf are deemed to have made any representations as to
;; the suitability of this software for any purpose nor are held responsible
;; for any defects of this software.
;;
;; THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.

(define-widget-type 'scrolledwindow "ScrolledW.h")

(prolog

;;; Before the converter for scrollingPolicy was introduced (which wasn't
;;; even necessary), the one provided by Xm was called and people were using
;;; "AUTOMATIC" and "APPLICATION_DEFINED".  Everything was fine.
;;;
;;; After the converter was introduced, code was required to use 'automatic
;;; and 'application-defined instead.  Thus the change broke existing code.
;;;
;;; As a temporary solution, I'm now adding AUTOMATIC etc. to the list of
;;; legal values, but clearly some kind of concept is needed here...

"static SYMDESCR Scrolling_Syms[] = {
   { \"automatic\",           XmAUTOMATIC },
   { \"application-defined\", XmAPPLICATION_DEFINED },
   { \"AUTOMATIC\",           XmAUTOMATIC },            /* see above */
   { \"APPLICATION_DEFINED\", XmAPPLICATION_DEFINED },
   { \"application_defined\", XmAPPLICATION_DEFINED },
   { 0, 0}
};")

(define-widget-class 'scrolled-window 'xmScrolledWindowWidgetClass)

(scheme->c 'scrollingPolicy
"   if (TYPE(x) == T_String) x = P_String_To_Symbol(x);
    return (XtArgVal)Symbols_To_Bits (x, 0, Scrolling_Syms);")