contrib/ncurses-5.4/form/fld_opts.c

   1 /****************************************************************************
   2  * Copyright (c) 1998-2002,2003 Free Software Foundation, Inc.              *
   3  *                                                                          *
   4  * Permission is hereby granted, free of charge, to any person obtaining a  *
   5  * copy of this software and associated documentation files (the            *
   6  * "Software"), to deal in the Software without restriction, including      *
   7  * without limitation the rights to use, copy, modify, merge, publish,      *
   8  * distribute, distribute with modifications, sublicense, and/or sell       *
   9  * copies of the Software, and to permit persons to whom the Software is    *
  10  * furnished to do so, subject to the following conditions:                 *
  11  *                                                                          *
  12  * The above copyright notice and this permission notice shall be included  *
  13  * in all copies or substantial portions of the Software.                   *
  14  *                                                                          *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  22  *                                                                          *
  23  * Except as contained in this notice, the name(s) of the above copyright   *
  24  * holders shall not be used in advertising or otherwise to promote the     *
  25  * sale, use or other dealings in this Software without prior written       *
  26  * authorization.                                                           *
  27  ****************************************************************************/
  28
  29 /****************************************************************************
  30  *   Author:  Juergen Pfeifer, 1995,1997                                    *
  31  ****************************************************************************/
  32
  33 #include "form.priv.h"
  34
  35 MODULE_ID("$Id: fld_opts.c,v 1.9 2003/10/25 15:17:08 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   opts &= ALL_FIELD_OPTS;
  58   if (!(opts & ~ALL_FIELD_OPTS))
  59     res = _nc_Synchronize_Options( Normalize_Field(field), opts );
  60   RETURN(res);
  61 }
  62
  63 /*---------------------------------------------------------------------------
  64 |   Facility      :  libnform
  65 |   Function      :  Field_Options field_opts(const FIELD *field)
  66 |
  67 |   Description   :  Retrieve the fields options.
  68 |
  69 |   Return Values :  The options.
  70 +--------------------------------------------------------------------------*/
  71 NCURSES_EXPORT(Field_Options)
  72 field_opts (const FIELD * field)
  73 {
  74   return ALL_FIELD_OPTS & Normalize_Field( field )->opts;
  75 }
  76
  77 /*---------------------------------------------------------------------------
  78 |   Facility      :  libnform
  79 |   Function      :  int field_opts_on(FIELD *field, Field_Options opts)
  80 |
  81 |   Description   :  Turns on the named options for this field and all the
  82 |                    remaining options are unchanged.
  83 |
  84 |   Return Values :  E_OK            - success
  85 |                    E_CURRENT       - the field is the current field
  86 |                    E_BAD_ARGUMENT  - invalid options
  87 |                    E_SYSTEM_ERROR  - system error
  88 +--------------------------------------------------------------------------*/
  89 NCURSES_EXPORT(int)
  90 field_opts_on (FIELD * field, Field_Options opts)
  91 {
  92   int res = E_BAD_ARGUMENT;
  93
  94   opts &= ALL_FIELD_OPTS;
  95   if (!(opts & ~ALL_FIELD_OPTS))
  96     {
  97       Normalize_Field( field );
  98       res = _nc_Synchronize_Options( field, field->opts | opts );
  99     }
 100   RETURN(res);
 101 }
 102
 103 /*---------------------------------------------------------------------------
 104 |   Facility      :  libnform
 105 |   Function      :  int field_opts_off(FIELD *field, Field_Options opts)
 106 |
 107 |   Description   :  Turns off the named options for this field and all the
 108 |                    remaining options are unchanged.
 109 |
 110 |   Return Values :  E_OK            - success
 111 |                    E_CURRENT       - the field is the current field
 112 |                    E_BAD_ARGUMENT  - invalid options
 113 |                    E_SYSTEM_ERROR  - system error
 114 +--------------------------------------------------------------------------*/
 115 NCURSES_EXPORT(int)
 116 field_opts_off (FIELD  * field, Field_Options opts)
 117 {
 118   int res = E_BAD_ARGUMENT;
 119
 120   opts &= ALL_FIELD_OPTS;
 121   if (!(opts & ~ALL_FIELD_OPTS))
 122     {
 123       Normalize_Field( field );
 124       res = _nc_Synchronize_Options( field, field->opts & ~opts );
 125     }
 126   RETURN(res);
 127 }
 128
 129 /* fld_opts.c ends here */