CMakeLua/Source/CursesDialog/form/fld_dup.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_dup.c,v 1.1 2001/11/05 16:53:00 berk Exp $")
  36
  37 /*---------------------------------------------------------------------------
  38 |   Facility      :  libnform
  39 |   Function      :  FIELD *dup_field(FIELD *field, int frow, int fcol)
  40 |
  41 |   Description   :  Duplicates the field at the specified position. All
  42 |                    field attributes and the buffers are copied.
  43 |                    If an error occurs, errno is set to
  44 |
  45 |                    E_BAD_ARGUMENT - invalid argument
  46 |                    E_SYSTEM_ERROR - system error
  47 |
  48 |   Return Values :  Pointer to the new field or NULL if failure
  49 +--------------------------------------------------------------------------*/
  50 FIELD *dup_field(FIELD * field, int frow, int fcol)
  51 {
  52   FIELD *New_Field = (FIELD *)0;
  53   int err = E_BAD_ARGUMENT;
  54
  55   if (field && (frow>=0) && (fcol>=0) &&
  56       ((err=E_SYSTEM_ERROR) != 0) && /* trick : this resets the default error */
  57       (New_Field=(FIELD *)malloc(sizeof(FIELD))) )
  58     {
  59       *New_Field         = *_nc_Default_Field;
  60       New_Field->frow    = frow;
  61       New_Field->fcol    = fcol;
  62       New_Field->link    = New_Field;
  63       New_Field->rows    = field->rows;
  64       New_Field->cols    = field->cols;
  65       New_Field->nrow    = field->nrow;
  66       New_Field->drows   = field->drows;
  67       New_Field->dcols   = field->dcols;
  68       New_Field->maxgrow = field->maxgrow;
  69       New_Field->nbuf    = field->nbuf;
  70       New_Field->just    = field->just;
  71       New_Field->fore    = field->fore;
  72       New_Field->back    = field->back;
  73       New_Field->pad     = field->pad;
  74       New_Field->opts    = field->opts;
  75       New_Field->usrptr  = field->usrptr;
  76
  77       if (_nc_Copy_Type(New_Field,field))
  78         {
  79           size_t len;
  80
  81           len = Total_Buffer_Size(New_Field);
  82           if ( (New_Field->buf=(char *)malloc(len)) )
  83             {
  84               memcpy(New_Field->buf,field->buf,len);
  85               return New_Field;
  86             }
  87         }
  88     }
  89
  90   if (New_Field)
  91     free_field(New_Field);
  92
  93   SET_ERROR(err);
  94   return (FIELD *)0;
  95 }
  96
  97 /* fld_dup.c ends here */