xref: /freebsd/contrib/ncurses/form/fld_ftchoice.c (revision 517904de5ccac643589c71ac0d2751797f89e4f9)
1 /****************************************************************************
2  * Copyright 2018,2020 Thomas E. Dickey                                     *
3  * Copyright 1998-2012,2016 Free Software Foundation, Inc.                  *
4  *                                                                          *
5  * Permission is hereby granted, free of charge, to any person obtaining a  *
6  * copy of this software and associated documentation files (the            *
7  * "Software"), to deal in the Software without restriction, including      *
8  * without limitation the rights to use, copy, modify, merge, publish,      *
9  * distribute, distribute with modifications, sublicense, and/or sell       *
10  * copies of the Software, and to permit persons to whom the Software is    *
11  * furnished to do so, subject to the following conditions:                 *
12  *                                                                          *
13  * The above copyright notice and this permission notice shall be included  *
14  * in all copies or substantial portions of the Software.                   *
15  *                                                                          *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
19  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
22  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
23  *                                                                          *
24  * Except as contained in this notice, the name(s) of the above copyright   *
25  * holders shall not be used in advertising or otherwise to promote the     *
26  * sale, use or other dealings in this Software without prior written       *
27  * authorization.                                                           *
28  ****************************************************************************/
29 
30 /****************************************************************************
31  *   Author:  Juergen Pfeifer, 1995,1997                                    *
32  ****************************************************************************/
33 
34 #include "form.priv.h"
35 
36 MODULE_ID("$Id: fld_ftchoice.c,v 1.17 2020/05/24 01:40:20 anonymous.maarten 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 +--------------------------------------------------------------------------*/
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