xref: /freebsd/contrib/ncurses/form/frm_opts.c (revision eaeb601bd6a77b1f1c0889df45693d8c602e4863)
1 /****************************************************************************
2  * Copyright 2020 Thomas E. Dickey                                          *
3  * Copyright 1998-2012,2013 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: frm_opts.c,v 1.18 2020/02/02 23:34:34 tom Exp $")
37 
38 /*---------------------------------------------------------------------------
39 |   Facility      :  libnform
40 |   Function      :  int set_form_opts(FORM *form, Form_Options opts)
41 |
42 |   Description   :  Turns on the named options and turns off all the
43 |                    remaining options for that form.
44 |
45 |   Return Values :  E_OK              - success
46 |                    E_BAD_ARGUMENT    - invalid options
47 +--------------------------------------------------------------------------*/
48 NCURSES_EXPORT(int)
49 set_form_opts(FORM *form, Form_Options opts)
50 {
51   T((T_CALLED("set_form_opts(%p,%d)"), (void *)form, opts));
52 
53   opts &= (Form_Options) ALL_FORM_OPTS;
54   if ((unsigned)opts & ~ALL_FORM_OPTS)
55     RETURN(E_BAD_ARGUMENT);
56   else
57     {
58       Normalize_Form(form)->opts = opts;
59       RETURN(E_OK);
60     }
61 }
62 
63 /*---------------------------------------------------------------------------
64 |   Facility      :  libnform
65 |   Function      :  Form_Options form_opts(const FORM *)
66 |
67 |   Description   :  Retrieves the current form options.
68 |
69 |   Return Values :  The option flags.
70 +--------------------------------------------------------------------------*/
71 NCURSES_EXPORT(Form_Options)
72 form_opts(const FORM *form)
73 {
74   T((T_CALLED("form_opts(%p)"), (const void *)form));
75   returnCode((Form_Options) ((unsigned)Normalize_Form(form)->opts & ALL_FORM_OPTS));
76 }
77 
78 /*---------------------------------------------------------------------------
79 |   Facility      :  libnform
80 |   Function      :  int form_opts_on(FORM *form, Form_Options opts)
81 |
82 |   Description   :  Turns on the named options; no other options are
83 |                    changed.
84 |
85 |   Return Values :  E_OK            - success
86 |                    E_BAD_ARGUMENT  - invalid options
87 +--------------------------------------------------------------------------*/
88 NCURSES_EXPORT(int)
89 form_opts_on(FORM *form, Form_Options opts)
90 {
91   T((T_CALLED("form_opts_on(%p,%d)"), (void *)form, opts));
92 
93   opts &= (Form_Options) ALL_FORM_OPTS;
94   if ((unsigned)opts & ~ALL_FORM_OPTS)
95     RETURN(E_BAD_ARGUMENT);
96   else
97     {
98       Normalize_Form(form)->opts |= opts;
99       RETURN(E_OK);
100     }
101 }
102 
103 /*---------------------------------------------------------------------------
104 |   Facility      :  libnform
105 |   Function      :  int form_opts_off(FORM *form, Form_Options opts)
106 |
107 |   Description   :  Turns off the named options; no other options are
108 |                    changed.
109 |
110 |   Return Values :  E_OK            - success
111 |                    E_BAD_ARGUMENT  - invalid options
112 +--------------------------------------------------------------------------*/
113 NCURSES_EXPORT(int)
114 form_opts_off(FORM *form, Form_Options opts)
115 {
116   T((T_CALLED("form_opts_off(%p,%d)"), (void *)form, opts));
117 
118   opts &= (Form_Options) ALL_FORM_OPTS;
119   if ((unsigned)opts & ~ALL_FORM_OPTS)
120     RETURN(E_BAD_ARGUMENT);
121   else
122     {
123       Normalize_Form(form)->opts &= ~opts;
124       RETURN(E_OK);
125     }
126 }
127 
128 /* frm_opts.c ends here */
129