frm_page.c revision 50276 
1/****************************************************************************
2 * Copyright (c) 1998 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 <juergen.pfeifer@gmx.net> 1995,1997            *
31 ****************************************************************************/
32
33#include "form.priv.h"
34
35MODULE_ID("$Id: frm_page.c,v 1.5 1999/05/16 17:21:26 juergen 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+--------------------------------------------------------------------------*/
49int set_form_page(FORM * form, int page)
50{
51  int err = E_OK;
52
53  if ( !form || (page<0) || (page>=form->maxpage) )
54    RETURN(E_BAD_ARGUMENT);
55
56  if (!(form->status & _POSTED))
57    {
58      form->curpage = page;
59      form->current = _nc_First_Active_Field(form);
60  }
61  else
62    {
63      if (form->status & _IN_DRIVER)
64	err = E_BAD_STATE;
65      else
66	{
67	  if (form->curpage != page)
68	    {
69	      if (!_nc_Internal_Validation(form))
70		err = E_INVALID_FIELD;
71	      else
72		{
73		  Call_Hook(form,fieldterm);
74		  Call_Hook(form,formterm);
75		  err = _nc_Set_Form_Page(form,page,(FIELD *)0);
76		  Call_Hook(form,forminit);
77		  Call_Hook(form,fieldinit);
78		  _nc_Refresh_Current_Field(form);
79		}
80	    }
81	}
82    }
83  RETURN(err);
84}
85
86/*---------------------------------------------------------------------------
87|   Facility      :  libnform
88|   Function      :  int form_page(const FORM * form)
89|
90|   Description   :  Return the current page of the form.
91|
92|   Return Values :  >= 0  : current page number
93|                    -1    : invalid form pointer
94+--------------------------------------------------------------------------*/
95int form_page(const FORM * form)
96{
97  return Normalize_Form(form)->curpage;
98}
99
100/* frm_page.c ends here */
101