xref: /freebsd/contrib/ncurses/form/frm_opts.c (revision bc96366c864c07ef352edb92017357917c75b36c)
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28 
29 /****************************************************************************
30  *   Author:  Juergen Pfeifer, 1995,1997                                    *
31  ****************************************************************************/
32 
33 #include "form.priv.h"
34 
35 MODULE_ID("$Id: frm_opts.c,v 1.17 2013/08/24 22:58:47 tom Exp $")
36 
37 /*---------------------------------------------------------------------------
38 |   Facility      :  libnform
39 |   Function      :  int set_form_opts(FORM *form, Form_Options opts)
40 |
41 |   Description   :  Turns on the named options and turns off all the
42 |                    remaining options for that form.
43 |
44 |   Return Values :  E_OK              - success
45 |                    E_BAD_ARGUMENT    - invalid options
46 +--------------------------------------------------------------------------*/
47 NCURSES_EXPORT(int)
48 set_form_opts(FORM *form, Form_Options opts)
49 {
50   T((T_CALLED("set_form_opts(%p,%d)"), (void *)form, opts));
51 
52   opts &= (Form_Options) ALL_FORM_OPTS;
53   if ((unsigned)opts & ~ALL_FORM_OPTS)
54     RETURN(E_BAD_ARGUMENT);
55   else
56     {
57       Normalize_Form(form)->opts = opts;
58       RETURN(E_OK);
59     }
60 }
61 
62 /*---------------------------------------------------------------------------
63 |   Facility      :  libnform
64 |   Function      :  Form_Options form_opts(const FORM *)
65 |
66 |   Description   :  Retrieves the current form options.
67 |
68 |   Return Values :  The option flags.
69 +--------------------------------------------------------------------------*/
70 NCURSES_EXPORT(Form_Options)
71 form_opts(const FORM *form)
72 {
73   T((T_CALLED("form_opts(%p)"), (const void *)form));
74   returnCode((Form_Options) ((unsigned)Normalize_Form(form)->opts & ALL_FORM_OPTS));
75 }
76 
77 /*---------------------------------------------------------------------------
78 |   Facility      :  libnform
79 |   Function      :  int form_opts_on(FORM *form, Form_Options opts)
80 |
81 |   Description   :  Turns on the named options; no other options are
82 |                    changed.
83 |
84 |   Return Values :  E_OK            - success
85 |                    E_BAD_ARGUMENT  - invalid options
86 +--------------------------------------------------------------------------*/
87 NCURSES_EXPORT(int)
88 form_opts_on(FORM *form, Form_Options opts)
89 {
90   T((T_CALLED("form_opts_on(%p,%d)"), (void *)form, opts));
91 
92   opts &= (Form_Options) ALL_FORM_OPTS;
93   if ((unsigned)opts & ~ALL_FORM_OPTS)
94     RETURN(E_BAD_ARGUMENT);
95   else
96     {
97       Normalize_Form(form)->opts |= opts;
98       RETURN(E_OK);
99     }
100 }
101 
102 /*---------------------------------------------------------------------------
103 |   Facility      :  libnform
104 |   Function      :  int form_opts_off(FORM *form, Form_Options opts)
105 |
106 |   Description   :  Turns off the named options; no other options are
107 |                    changed.
108 |
109 |   Return Values :  E_OK            - success
110 |                    E_BAD_ARGUMENT  - invalid options
111 +--------------------------------------------------------------------------*/
112 NCURSES_EXPORT(int)
113 form_opts_off(FORM *form, Form_Options opts)
114 {
115   T((T_CALLED("form_opts_off(%p,%d)"), (void *)form, opts));
116 
117   opts &= (Form_Options) ALL_FORM_OPTS;
118   if ((unsigned)opts & ~ALL_FORM_OPTS)
119     RETURN(E_BAD_ARGUMENT);
120   else
121     {
122       Normalize_Form(form)->opts &= ~opts;
123       RETURN(E_OK);
124     }
125 }
126 
127 /* frm_opts.c ends here */
128