xref: /freebsd/contrib/ncurses/form/fld_ftchoice.c (revision 21817992b3314c908ab50f0bb88d2ee750b9c4ac)
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2  * Copyright 2018-2020,2021 Thomas E. Dickey                                *
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29 
30 /****************************************************************************
31  *   Author:  Juergen Pfeifer, 1995,1997                                    *
32  ****************************************************************************/
33 
34 #include "form.priv.h"
35 
36 MODULE_ID("$Id: fld_ftchoice.c,v 1.18 2021/06/17 21:26:02 tom Exp $")
37 
38 /*---------------------------------------------------------------------------
39 |   Facility      :  libnform
40 |   Function      :  int set_fieldtype_choice(
41 |                          FIELDTYPE *typ,
42 |                          bool (* const next_choice)(FIELD *,const void *),
43 |                          bool (* const prev_choice)(FIELD *,const void *))
44 |
45 |   Description   :  Define implementation of enumeration requests.
46 |
47 |   Return Values :  E_OK           - success
48 |                    E_BAD_ARGUMENT - invalid arguments
49 +--------------------------------------------------------------------------*/
FORM_EXPORT(int)50 FORM_EXPORT(int)
51 set_fieldtype_choice(FIELDTYPE *typ,
52 		     bool (*const next_choice) (FIELD *, const void *),
53 		     bool (*const prev_choice) (FIELD *, const void *))
54 {
55   TR_FUNC_BFR(2);
56 
57   T((T_CALLED("set_fieldtype_choice(%p,%s,%s)"),
58      (void *)typ,
59      TR_FUNC_ARG(0, next_choice),
60      TR_FUNC_ARG(1, prev_choice)));
61 
62   if (!typ || !next_choice || !prev_choice)
63     RETURN(E_BAD_ARGUMENT);
64 
65   SetStatus(typ, _HAS_CHOICE);
66 #if NCURSES_INTEROP_FUNCS
67   typ->enum_next.onext = next_choice;
68   typ->enum_prev.oprev = prev_choice;
69 #else
70   typ->next = next_choice;
71   typ->prev = prev_choice;
72 #endif
73   RETURN(E_OK);
74 }
75 
76 /* fld_ftchoice.c ends here */
77