CMakeLua/Source/CursesDialog/form/fld_link.c

   1 /****************************************************************************
   2  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
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  28
  29 /****************************************************************************
  30  *   Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997            *
  31  ****************************************************************************/
  32
  33 #include "form.priv.h"
  34
  35 MODULE_ID("$Id: fld_link.c,v 1.1 2001/11/05 16:53:00 berk Exp $")
  36
  37 /*---------------------------------------------------------------------------
  38 |   Facility      :  libnform
  39 |   Function      :  FIELD *link_field(FIELD *field, int frow, int fcol)
  40 |
  41 |   Description   :  Duplicates the field at the specified position. The
  42 |                    new field shares its buffers with the original one,
  43 |                    the attributes are independent.
  44 |                    If an error occurs, errno is set to
  45 |
  46 |                    E_BAD_ARGUMENT - invalid argument
  47 |                    E_SYSTEM_ERROR - system error
  48 |
  49 |   Return Values :  Pointer to the new field or NULL if failure
  50 +--------------------------------------------------------------------------*/
  51 FIELD *link_field(FIELD * field, int frow, int fcol)
  52 {
  53   FIELD *New_Field = (FIELD *)0;
  54   int err = E_BAD_ARGUMENT;
  55
  56   if (field && (frow>=0) && (fcol>=0) &&
  57       ((err=E_SYSTEM_ERROR) != 0) && /* trick: this resets the default error */
  58       (New_Field = (FIELD *)malloc(sizeof(FIELD))) )
  59     {
  60       *New_Field        = *_nc_Default_Field;
  61       New_Field->frow   = frow;
  62       New_Field->fcol   = fcol;
  63       New_Field->link   = field->link;
  64       field->link       = New_Field;
  65       New_Field->buf    = field->buf;
  66       New_Field->rows   = field->rows;
  67       New_Field->cols   = field->cols;
  68       New_Field->nrow   = field->nrow;
  69       New_Field->nbuf   = field->nbuf;
  70       New_Field->drows  = field->drows;
  71       New_Field->dcols  = field->dcols;
  72       New_Field->maxgrow= field->maxgrow;
  73       New_Field->just   = field->just;
  74       New_Field->fore   = field->fore;
  75       New_Field->back   = field->back;
  76       New_Field->pad    = field->pad;
  77       New_Field->opts   = field->opts;
  78       New_Field->usrptr = field->usrptr;
  79       if (_nc_Copy_Type(New_Field,field))
  80         return New_Field;
  81     }
  82
  83   if (New_Field)
  84     free_field(New_Field);
  85
  86   SET_ERROR( err );
  87   return (FIELD *)0;
  88 }
  89
  90 /* fld_link.c ends here */