1/****************************************************************************
2 * Copyright (c) 1998-2004,2007 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     *
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26 * authorization.                                                           *
27 ****************************************************************************/
28
29/****************************************************************************
30 *   Author:  Juergen Pfeifer, 1995,1997                                    *
31 ****************************************************************************/
32
33#include "form.priv.h"
34
35MODULE_ID("$Id: fld_dup.c,v 1.12 2007/10/13 19:30:21 tom 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+--------------------------------------------------------------------------*/
50NCURSES_EXPORT(FIELD *)
51dup_field(FIELD *field, int frow, int fcol)
52{
53  FIELD *New_Field = (FIELD *)0;
54  int err = E_BAD_ARGUMENT;
55
56  T((T_CALLED("dup_field(%p,%d,%d)"), field, frow, fcol));
57  if (field && (frow >= 0) && (fcol >= 0) &&
58      ((err = E_SYSTEM_ERROR) != 0) &&	/* trick : this resets the default error */
59      (New_Field = typeMalloc(FIELD, 1)))
60    {
61      T((T_CREATE("field %p"), New_Field));
62      *New_Field = *_nc_Default_Field;
63      New_Field->frow = frow;
64      New_Field->fcol = fcol;
65      New_Field->link = New_Field;
66      New_Field->rows = field->rows;
67      New_Field->cols = field->cols;
68      New_Field->nrow = field->nrow;
69      New_Field->drows = field->drows;
70      New_Field->dcols = field->dcols;
71      New_Field->maxgrow = field->maxgrow;
72      New_Field->nbuf = field->nbuf;
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
80      if (_nc_Copy_Type(New_Field, field))
81	{
82	  size_t i, len;
83
84	  len = Total_Buffer_Size(New_Field);
85	  if ((New_Field->buf = (FIELD_CELL *)malloc(len)))
86	    {
87	      for (i = 0; i < len; ++i)
88		New_Field->buf[i] = field->buf[i];
89	      returnField(New_Field);
90	    }
91	}
92    }
93
94  if (New_Field)
95    free_field(New_Field);
96
97  SET_ERROR(err);
98  returnField((FIELD *)0);
99}
100
101/* fld_dup.c ends here */
102