contrib/ncurses-5.4/form/fld_type.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_type.c,v 1.12 2003/10/25 15:17:08 tom Exp $")
  36
  37 /*---------------------------------------------------------------------------
  38 |   Facility      :  libnform
  39 |   Function      :  int set_field_type(FIELD *field, FIELDTYPE *type,...)
  40 |
  41 |   Description   :  Associate the specified fieldtype with the field.
  42 |                    Certain field types take additional arguments. Look
  43 |                    at the spec of the field types !
  44 |
  45 |   Return Values :  E_OK           - success
  46 |                    E_SYSTEM_ERROR - system error
  47 +--------------------------------------------------------------------------*/
  48 NCURSES_EXPORT(int)
  49 set_field_type (FIELD *field,FIELDTYPE *type, ...)
  50 {
  51   va_list ap;
  52   int res = E_SYSTEM_ERROR;
  53   int err = 0;
  54
  55   va_start(ap,type);
  56
  57   Normalize_Field(field);
  58   _nc_Free_Type(field);
  59
  60   field->type = type;
  61   field->arg  = (void *)_nc_Make_Argument(field->type,&ap,&err);
  62
  63   if (err)
  64     {
  65       _nc_Free_Argument(field->type,(TypeArgument *)(field->arg));
  66       field->type = (FIELDTYPE *)0;
  67       field->arg  = (void *)0;
  68     }
  69   else
  70     {
  71       res = E_OK;
  72       if (field->type)
  73         field->type->ref++;
  74     }
  75
  76   va_end(ap);
  77   RETURN(res);
  78 }
  79
  80 /*---------------------------------------------------------------------------
  81 |   Facility      :  libnform
  82 |   Function      :  FIELDTYPE *field_type(const FIELD *field)
  83 |
  84 |   Description   :  Retrieve the associated fieldtype for this field.
  85 |
  86 |   Return Values :  Pointer to fieldtype of NULL if none is defined.
  87 +--------------------------------------------------------------------------*/
  88 NCURSES_EXPORT(FIELDTYPE *)
  89 field_type (const FIELD * field)
  90 {
  91   return Normalize_Field(field)->type;
  92 }
  93
  94 /* fld_type.c ends here */