xref: /freebsd/contrib/ncurses/form/frm_opts.c (revision 7f3dea244c40159a41ab22da77a434d7c5b5e85a)
1 /****************************************************************************
2  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
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28 
29 /****************************************************************************
30  *   Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997            *
31  ****************************************************************************/
32 
33 #include "form.priv.h"
34 
35 MODULE_ID("$Id: frm_opts.c,v 1.8 1999/05/16 17:38:05 juergen 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 int set_form_opts(FORM * form, Form_Options  opts)
48 {
49   opts &= ALL_FORM_OPTS;
50   if (opts & ~ALL_FORM_OPTS)
51     RETURN(E_BAD_ARGUMENT);
52   else
53     {
54       Normalize_Form( form )->opts = opts;
55       RETURN(E_OK);
56     }
57 }
58 
59 /*---------------------------------------------------------------------------
60 |   Facility      :  libnform
61 |   Function      :  Form_Options form_opts(const FORM *)
62 |
63 |   Description   :  Retrieves the current form options.
64 |
65 |   Return Values :  The option flags.
66 +--------------------------------------------------------------------------*/
67 Form_Options form_opts(const FORM * form)
68 {
69   return (Normalize_Form(form)->opts & ALL_FORM_OPTS);
70 }
71 
72 /*---------------------------------------------------------------------------
73 |   Facility      :  libnform
74 |   Function      :  int form_opts_on(FORM *form, Form_Options opts)
75 |
76 |   Description   :  Turns on the named options; no other options are
77 |                    changed.
78 |
79 |   Return Values :  E_OK            - success
80 |                    E_BAD_ARGUMENT  - invalid options
81 +--------------------------------------------------------------------------*/
82 int form_opts_on(FORM * form, Form_Options opts)
83 {
84   opts &= ALL_FORM_OPTS;
85   if (opts & ~ALL_FORM_OPTS)
86     RETURN(E_BAD_ARGUMENT);
87   else
88     {
89       Normalize_Form( form )->opts |= opts;
90       RETURN(E_OK);
91     }
92 }
93 
94 /*---------------------------------------------------------------------------
95 |   Facility      :  libnform
96 |   Function      :  int form_opts_off(FORM *form, Form_Options opts)
97 |
98 |   Description   :  Turns off the named options; no other options are
99 |                    changed.
100 |
101 |   Return Values :  E_OK            - success
102 |                    E_BAD_ARGUMENT  - invalid options
103 +--------------------------------------------------------------------------*/
104 int form_opts_off(FORM * form, Form_Options opts)
105 {
106   opts &= ALL_FORM_OPTS;
107   if (opts & ~ALL_FORM_OPTS)
108     RETURN(E_BAD_ARGUMENT);
109   else
110     {
111       Normalize_Form(form)->opts &= ~opts;
112       RETURN(E_OK);
113     }
114 }
115 
116 /* frm_opts.c ends here */
117