1/****************************************************************************
2 * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc.              *
3 *                                                                          *
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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 1.10 2004/12/25 22:24:10 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 = (FIELD *)malloc(sizeof(FIELD))))
60    {
61      *New_Field = *_nc_Default_Field;
62      New_Field->frow = frow;
63      New_Field->fcol = fcol;
64      New_Field->link = New_Field;
65      New_Field->rows = field->rows;
66      New_Field->cols = field->cols;
67      New_Field->nrow = field->nrow;
68      New_Field->drows = field->drows;
69      New_Field->dcols = field->dcols;
70      New_Field->maxgrow = field->maxgrow;
71      New_Field->nbuf = field->nbuf;
72      New_Field->just = field->just;
73      New_Field->fore = field->fore;
74      New_Field->back = field->back;
75      New_Field->pad = field->pad;
76      New_Field->opts = field->opts;
77      New_Field->usrptr = field->usrptr;
78
79      if (_nc_Copy_Type(New_Field, field))
80	{
81	  size_t i, len;
82
83	  len = Total_Buffer_Size(New_Field);
84	  if ((New_Field->buf = (FIELD_CELL *)malloc(len)))
85	    {
86	      for (i = 0; i < len; ++i)
87		New_Field->buf[i] = field->buf[i];
88	      returnField(New_Field);
89	    }
90	}
91    }
92
93  if (New_Field)
94    free_field(New_Field);
95
96  SET_ERROR(err);
97  returnField((FIELD *)0);
98}
99
100/* fld_dup.c ends here */
101