frm_opts.c revision 50276 
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
35MODULE_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+--------------------------------------------------------------------------*/
47int 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+--------------------------------------------------------------------------*/
67Form_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+--------------------------------------------------------------------------*/
82int 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+--------------------------------------------------------------------------*/
104int 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