contrib/ncurses/form/fld_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: fld_opts.c,v 1.12 2010/01/23 21:14:36 tom Exp $")
  36
  37 /*----------------------------------------------------------------------------
  38   Field-Options manipulation routines
  39   --------------------------------------------------------------------------*/
  40
  41 /*---------------------------------------------------------------------------
  42 |   Facility      :  libnform
  43 |   Function      :  int set_field_opts(FIELD *field, Field_Options opts)
  44 |
  45 |   Description   :  Turns on the named options for this field and turns
  46 |                    off all the remaining options.
  47 |
  48 |   Return Values :  E_OK            - success
  49 |                    E_CURRENT       - the field is the current field
  50 |                    E_BAD_ARGUMENT  - invalid options
  51 |                    E_SYSTEM_ERROR  - system error
  52 +--------------------------------------------------------------------------*/
  53 NCURSES_EXPORT(int)
  54 set_field_opts(FIELD *field, Field_Options opts)
  55 {
  56   int res = E_BAD_ARGUMENT;
  57
  58   T((T_CALLED("set_field_opts(%p,%d)"), (void *)field, opts));
  59
  60   opts &= ALL_FIELD_OPTS;
  61   if (!(opts & ~ALL_FIELD_OPTS))
  62     res = _nc_Synchronize_Options(Normalize_Field(field), opts);
  63   RETURN(res);
  64 }
  65
  66 /*---------------------------------------------------------------------------
  67 |   Facility      :  libnform
  68 |   Function      :  Field_Options field_opts(const FIELD *field)
  69 |
  70 |   Description   :  Retrieve the fields options.
  71 |
  72 |   Return Values :  The options.
  73 +--------------------------------------------------------------------------*/
  74 NCURSES_EXPORT(Field_Options)
  75 field_opts(const FIELD *field)
  76 {
  77   T((T_CALLED("field_opts(%p)"), (const void *)field));
  78
  79   returnCode(ALL_FIELD_OPTS & Normalize_Field(field)->opts);
  80 }
  81
  82 /*---------------------------------------------------------------------------
  83 |   Facility      :  libnform
  84 |   Function      :  int field_opts_on(FIELD *field, Field_Options opts)
  85 |
  86 |   Description   :  Turns on the named options for this field and all the
  87 |                    remaining options are unchanged.
  88 |
  89 |   Return Values :  E_OK            - success
  90 |                    E_CURRENT       - the field is the current field
  91 |                    E_BAD_ARGUMENT  - invalid options
  92 |                    E_SYSTEM_ERROR  - system error
  93 +--------------------------------------------------------------------------*/
  94 NCURSES_EXPORT(int)
  95 field_opts_on(FIELD *field, Field_Options opts)
  96 {
  97   int res = E_BAD_ARGUMENT;
  98
  99   T((T_CALLED("field_opts_on(%p,%d)"), (void *)field, opts));
 100
 101   opts &= ALL_FIELD_OPTS;
 102   if (!(opts & ~ALL_FIELD_OPTS))
 103     {
 104       Normalize_Field(field);
 105       res = _nc_Synchronize_Options(field, field->opts | opts);
 106     }
 107   RETURN(res);
 108 }
 109
 110 /*---------------------------------------------------------------------------
 111 |   Facility      :  libnform
 112 |   Function      :  int field_opts_off(FIELD *field, Field_Options opts)
 113 |
 114 |   Description   :  Turns off the named options for this field and all the
 115 |                    remaining options are unchanged.
 116 |
 117 |   Return Values :  E_OK            - success
 118 |                    E_CURRENT       - the field is the current field
 119 |                    E_BAD_ARGUMENT  - invalid options
 120 |                    E_SYSTEM_ERROR  - system error
 121 +--------------------------------------------------------------------------*/
 122 NCURSES_EXPORT(int)
 123 field_opts_off(FIELD *field, Field_Options opts)
 124 {
 125   int res = E_BAD_ARGUMENT;
 126
 127   T((T_CALLED("field_opts_off(%p,%d)"), (void *)field, opts));
 128
 129   opts &= ALL_FIELD_OPTS;
 130   if (!(opts & ~ALL_FIELD_OPTS))
 131     {
 132       Normalize_Field(field);
 133       res = _nc_Synchronize_Options(field, field->opts & ~opts);
 134     }
 135   RETURN(res);
 136 }
 137
 138 /* fld_opts.c ends here */