1 /****************************************************************************
2 * Copyright 2018-2020,2021 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: *
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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. *
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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 1.18 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