contrib/ncurses/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 1.17 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 */