1/****************************************************************************
2 * Copyright (c) 1998-2003,2004 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     *
25 * sale, use or other dealings in this Software without prior written       *
26 * authorization.                                                           *
27 ****************************************************************************/
28
29/****************************************************************************
30 *   Author:  Juergen Pfeifer, 1995,1997                                    *
31 ****************************************************************************/
32
33#include "form.priv.h"
34
35MODULE_ID("$Id: frm_page.c,v 1.10 2004/12/11 22:08:21 tom Exp $")
36
37/*---------------------------------------------------------------------------
38|   Facility      :  libnform
39|   Function      :  int set_form_page(FORM * form,int  page)
40|
41|   Description   :  Set the page number of the form.
42|
43|   Return Values :  E_OK              - success
44|                    E_BAD_ARGUMENT    - invalid form pointer or page number
45|                    E_BAD_STATE       - called from a hook routine
46|                    E_INVALID_FIELD   - current field can't be left
47|                    E_SYSTEM_ERROR    - system error
48+--------------------------------------------------------------------------*/
49NCURSES_EXPORT(int)
50set_form_page(FORM *form, int page)
51{
52  int err = E_OK;
53
54  T((T_CALLED("set_form_page(%p,%d)"), form, page));
55
56  if (!form || (page < 0) || (page >= form->maxpage))
57    RETURN(E_BAD_ARGUMENT);
58
59  if (!(form->status & _POSTED))
60    {
61      form->curpage = page;
62      form->current = _nc_First_Active_Field(form);
63    }
64  else
65    {
66      if (form->status & _IN_DRIVER)
67	err = E_BAD_STATE;
68      else
69	{
70	  if (form->curpage != page)
71	    {
72	      if (!_nc_Internal_Validation(form))
73		err = E_INVALID_FIELD;
74	      else
75		{
76		  Call_Hook(form, fieldterm);
77		  Call_Hook(form, formterm);
78		  err = _nc_Set_Form_Page(form, page, (FIELD *)0);
79		  Call_Hook(form, forminit);
80		  Call_Hook(form, fieldinit);
81		  _nc_Refresh_Current_Field(form);
82		}
83	    }
84	}
85    }
86  RETURN(err);
87}
88
89/*---------------------------------------------------------------------------
90|   Facility      :  libnform
91|   Function      :  int form_page(const FORM * form)
92|
93|   Description   :  Return the current page of the form.
94|
95|   Return Values :  >= 0  : current page number
96|                    -1    : invalid form pointer
97+--------------------------------------------------------------------------*/
98NCURSES_EXPORT(int)
99form_page(const FORM *form)
100{
101  T((T_CALLED("form_page(%p)"), form));
102
103  returnCode(Normalize_Form(form)->curpage);
104}
105
106/* frm_page.c ends here */
107