contrib/ncurses-5.4/form/frm_opts.c

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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 1.11 2003/10/25 15:17:08 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   opts &= ALL_FORM_OPTS;
  51   if (opts & ~ALL_FORM_OPTS)
  52     RETURN(E_BAD_ARGUMENT);
  53   else
  54     {
  55       Normalize_Form( form )->opts = opts;
  56       RETURN(E_OK);
  57     }
  58 }
  59
  60 /*---------------------------------------------------------------------------
  61 |   Facility      :  libnform
  62 |   Function      :  Form_Options form_opts(const FORM *)
  63 |
  64 |   Description   :  Retrieves the current form options.
  65 |
  66 |   Return Values :  The option flags.
  67 +--------------------------------------------------------------------------*/
  68 NCURSES_EXPORT(Form_Options)
  69 form_opts (const FORM * form)
  70 {
  71   return (Normalize_Form(form)->opts & ALL_FORM_OPTS);
  72 }
  73
  74 /*---------------------------------------------------------------------------
  75 |   Facility      :  libnform
  76 |   Function      :  int form_opts_on(FORM *form, Form_Options opts)
  77 |
  78 |   Description   :  Turns on the named options; no other options are
  79 |                    changed.
  80 |
  81 |   Return Values :  E_OK            - success
  82 |                    E_BAD_ARGUMENT  - invalid options
  83 +--------------------------------------------------------------------------*/
  84 NCURSES_EXPORT(int)
  85 form_opts_on (FORM * form, Form_Options opts)
  86 {
  87   opts &= ALL_FORM_OPTS;
  88   if (opts & ~ALL_FORM_OPTS)
  89     RETURN(E_BAD_ARGUMENT);
  90   else
  91     {
  92       Normalize_Form( form )->opts |= opts;
  93       RETURN(E_OK);
  94     }
  95 }
  96
  97 /*---------------------------------------------------------------------------
  98 |   Facility      :  libnform
  99 |   Function      :  int form_opts_off(FORM *form, Form_Options opts)
 100 |
 101 |   Description   :  Turns off the named options; no other options are
 102 |                    changed.
 103 |
 104 |   Return Values :  E_OK            - success
 105 |                    E_BAD_ARGUMENT  - invalid options
 106 +--------------------------------------------------------------------------*/
 107 NCURSES_EXPORT(int)
 108 form_opts_off (FORM * form, Form_Options opts)
 109 {
 110   opts &= ALL_FORM_OPTS;
 111   if (opts & ~ALL_FORM_OPTS)
 112     RETURN(E_BAD_ARGUMENT);
 113   else
 114     {
 115       Normalize_Form(form)->opts &= ~opts;
 116       RETURN(E_OK);
 117     }
 118 }
 119
 120 /* frm_opts.c ends here */