freebsd-nq/contrib/ncurses/form/fld_opts.c

/****************************************************************************
 * Copyright (c) 1998,2000 Free Software Foundation, Inc.                   *
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 * copies of the Software, and to permit persons to whom the Software is    *
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/****************************************************************************
 *   Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997            *
 ****************************************************************************/
#include "form.priv.h"

MODULE_ID("$Id: fld_opts.c,v 1.7 2000/12/10 02:09:38 tom Exp $")

/*----------------------------------------------------------------------------
  Field-Options manipulation routines
  --------------------------------------------------------------------------*/

/*---------------------------------------------------------------------------
|   Facility      :  libnform  
|   Function      :  int set_field_opts(FIELD *field, Field_Options opts)
|   
|   Description   :  Turns on the named options for this field and turns
|                    off all the remaining options.
|
|   Return Values :  E_OK            - success
|                    E_CURRENT       - the field is the current field
|                    E_BAD_ARGUMENT  - invalid options
|                    E_SYSTEM_ERROR  - system error
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
set_field_opts (FIELD * field, Field_Options opts)
{
  int res = E_BAD_ARGUMENT;
  opts &= ALL_FIELD_OPTS;
  if (!(opts & ~ALL_FIELD_OPTS))
    res = _nc_Synchronize_Options( Normalize_Field(field), opts );
  RETURN(res);
}

/*---------------------------------------------------------------------------
|   Facility      :  libnform  
|   Function      :  Field_Options field_opts(const FIELD *field)
|   
|   Description   :  Retrieve the fields options.
|
|   Return Values :  The options.
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(Field_Options)
field_opts (const FIELD * field)
{
  return ALL_FIELD_OPTS & Normalize_Field( field )->opts;
}

/*---------------------------------------------------------------------------
|   Facility      :  libnform  
|   Function      :  int field_opts_on(FIELD *field, Field_Options opts)
|   
|   Description   :  Turns on the named options for this field and all the 
|                    remaining options are unchanged.
|
|   Return Values :  E_OK            - success
|                    E_CURRENT       - the field is the current field
|                    E_BAD_ARGUMENT  - invalid options
|                    E_SYSTEM_ERROR  - system error
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
field_opts_on (FIELD * field, Field_Options opts)
{
  int res = E_BAD_ARGUMENT;

  opts &= ALL_FIELD_OPTS;
  if (!(opts & ~ALL_FIELD_OPTS))
    {
      Normalize_Field( field );
      res = _nc_Synchronize_Options( field, field->opts | opts );
    }
  RETURN(res);
}

/*---------------------------------------------------------------------------
|   Facility      :  libnform  
|   Function      :  int field_opts_off(FIELD *field, Field_Options opts)
|   
|   Description   :  Turns off the named options for this field and all the 
|                    remaining options are unchanged.
|
|   Return Values :  E_OK            - success
|                    E_CURRENT       - the field is the current field
|                    E_BAD_ARGUMENT  - invalid options
|                    E_SYSTEM_ERROR  - system error
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
field_opts_off (FIELD  * field, Field_Options opts)
{
  int res = E_BAD_ARGUMENT;

  opts &= ALL_FIELD_OPTS;
  if (!(opts & ~ALL_FIELD_OPTS))
    {
      Normalize_Field( field );
      res = _nc_Synchronize_Options( field, field->opts & ~opts );
    }
  RETURN(res);
}	

/* fld_opts.c ends here */