xref: /freebsd/contrib/ncurses/form/fld_opts.c (revision ce6a89e27cd190313be39bb479880aeda4778436)
1 /****************************************************************************
2  * Copyright 2020 Thomas E. Dickey                                          *
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29 
30 /****************************************************************************
31  *   Author:  Juergen Pfeifer, 1995,1997                                    *
32  ****************************************************************************/
33 
34 #include "form.priv.h"
35 
36 MODULE_ID("$Id: fld_opts.c,v 1.13 2020/02/02 23:34:34 tom Exp $")
37 
38 /*----------------------------------------------------------------------------
39   Field-Options manipulation routines
40   --------------------------------------------------------------------------*/
41 
42 /*---------------------------------------------------------------------------
43 |   Facility      :  libnform
44 |   Function      :  int set_field_opts(FIELD *field, Field_Options opts)
45 |
46 |   Description   :  Turns on the named options for this field and turns
47 |                    off all the remaining options.
48 |
49 |   Return Values :  E_OK            - success
50 |                    E_CURRENT       - the field is the current field
51 |                    E_BAD_ARGUMENT  - invalid options
52 |                    E_SYSTEM_ERROR  - system error
53 +--------------------------------------------------------------------------*/
54 NCURSES_EXPORT(int)
55 set_field_opts(FIELD *field, Field_Options opts)
56 {
57   int res = E_BAD_ARGUMENT;
58 
59   T((T_CALLED("set_field_opts(%p,%d)"), (void *)field, opts));
60 
61   opts &= ALL_FIELD_OPTS;
62   if (!(opts & ~ALL_FIELD_OPTS))
63     res = _nc_Synchronize_Options(Normalize_Field(field), opts);
64   RETURN(res);
65 }
66 
67 /*---------------------------------------------------------------------------
68 |   Facility      :  libnform
69 |   Function      :  Field_Options field_opts(const FIELD *field)
70 |
71 |   Description   :  Retrieve the fields options.
72 |
73 |   Return Values :  The options.
74 +--------------------------------------------------------------------------*/
75 NCURSES_EXPORT(Field_Options)
76 field_opts(const FIELD *field)
77 {
78   T((T_CALLED("field_opts(%p)"), (const void *)field));
79 
80   returnCode(ALL_FIELD_OPTS & Normalize_Field(field)->opts);
81 }
82 
83 /*---------------------------------------------------------------------------
84 |   Facility      :  libnform
85 |   Function      :  int field_opts_on(FIELD *field, Field_Options opts)
86 |
87 |   Description   :  Turns on the named options for this field and all the
88 |                    remaining options are unchanged.
89 |
90 |   Return Values :  E_OK            - success
91 |                    E_CURRENT       - the field is the current field
92 |                    E_BAD_ARGUMENT  - invalid options
93 |                    E_SYSTEM_ERROR  - system error
94 +--------------------------------------------------------------------------*/
95 NCURSES_EXPORT(int)
96 field_opts_on(FIELD *field, Field_Options opts)
97 {
98   int res = E_BAD_ARGUMENT;
99 
100   T((T_CALLED("field_opts_on(%p,%d)"), (void *)field, opts));
101 
102   opts &= ALL_FIELD_OPTS;
103   if (!(opts & ~ALL_FIELD_OPTS))
104     {
105       Normalize_Field(field);
106       res = _nc_Synchronize_Options(field, field->opts | opts);
107     }
108   RETURN(res);
109 }
110 
111 /*---------------------------------------------------------------------------
112 |   Facility      :  libnform
113 |   Function      :  int field_opts_off(FIELD *field, Field_Options opts)
114 |
115 |   Description   :  Turns off the named options for this field and all the
116 |                    remaining options are unchanged.
117 |
118 |   Return Values :  E_OK            - success
119 |                    E_CURRENT       - the field is the current field
120 |                    E_BAD_ARGUMENT  - invalid options
121 |                    E_SYSTEM_ERROR  - system error
122 +--------------------------------------------------------------------------*/
123 NCURSES_EXPORT(int)
124 field_opts_off(FIELD *field, Field_Options opts)
125 {
126   int res = E_BAD_ARGUMENT;
127 
128   T((T_CALLED("field_opts_off(%p,%d)"), (void *)field, opts));
129 
130   opts &= ALL_FIELD_OPTS;
131   if (!(opts & ~ALL_FIELD_OPTS))
132     {
133       Normalize_Field(field);
134       res = _nc_Synchronize_Options(field, field->opts & ~opts);
135     }
136   RETURN(res);
137 }
138 
139 /* fld_opts.c ends here */
140