1/****************************************************************************
2 * Copyright 2020 Thomas E. Dickey                                          *
3 * Copyright 1998-2010,2012 Free Software Foundation, Inc.                  *
4 *                                                                          *
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6 * copy of this software and associated documentation files (the            *
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10 * copies of the Software, and to permit persons to whom the Software is    *
11 * furnished to do so, subject to the following conditions:                 *
12 *                                                                          *
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14 * in all copies or substantial portions of the Software.                   *
15 *                                                                          *
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17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
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23 *                                                                          *
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25 * holders shall not be used in advertising or otherwise to promote the     *
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27 * authorization.                                                           *
28 ****************************************************************************/
29
30/****************************************************************************
31 *   Author:  Juergen Pfeifer, 1995,1997                                    *
32 ****************************************************************************/
33
34#include "form.priv.h"
35
36MODULE_ID("$Id: frm_post.c,v 1.13 2020/02/02 23:34:34 tom Exp $")
37
38/*---------------------------------------------------------------------------
39|   Facility      :  libnform
40|   Function      :  int post_form(FORM * form)
41|
42|   Description   :  Writes the form into its associated subwindow.
43|
44|   Return Values :  E_OK              - success
45|                    E_BAD_ARGUMENT    - invalid form pointer
46|                    E_POSTED          - form already posted
47|                    E_NOT_CONNECTED   - no fields connected to form
48|                    E_NO_ROOM         - form doesn't fit into subwindow
49|                    E_SYSTEM_ERROR    - system error
50+--------------------------------------------------------------------------*/
51NCURSES_EXPORT(int)
52post_form(FORM *form)
53{
54  WINDOW *formwin;
55  int err;
56  int page;
57
58  T((T_CALLED("post_form(%p)"), (void *)form));
59
60  if (!form)
61    RETURN(E_BAD_ARGUMENT);
62
63  if (form->status & _POSTED)
64    RETURN(E_POSTED);
65
66  if (!(form->field))
67    RETURN(E_NOT_CONNECTED);
68
69  formwin = Get_Form_Window(form);
70  if ((form->cols > getmaxx(formwin)) || (form->rows > getmaxy(formwin)))
71    RETURN(E_NO_ROOM);
72
73  /* reset form->curpage to an invalid value. This forces Set_Form_Page
74     to do the page initialization which is required by post_form.
75   */
76  page = form->curpage;
77  form->curpage = -1;
78  if ((err = _nc_Set_Form_Page(form, page, form->current)) != E_OK)
79    RETURN(err);
80
81  SetStatus(form, _POSTED);
82
83  Call_Hook(form, forminit);
84  Call_Hook(form, fieldinit);
85
86  _nc_Refresh_Current_Field(form);
87  RETURN(E_OK);
88}
89
90/*---------------------------------------------------------------------------
91|   Facility      :  libnform
92|   Function      :  int unpost_form(FORM * form)
93|
94|   Description   :  Erase form from its associated subwindow.
95|
96|   Return Values :  E_OK            - success
97|                    E_BAD_ARGUMENT  - invalid form pointer
98|                    E_NOT_POSTED    - form isn't posted
99|                    E_BAD_STATE     - called from a hook routine
100+--------------------------------------------------------------------------*/
101NCURSES_EXPORT(int)
102unpost_form(FORM *form)
103{
104  T((T_CALLED("unpost_form(%p)"), (void *)form));
105
106  if (!form)
107    RETURN(E_BAD_ARGUMENT);
108
109  if (!(form->status & _POSTED))
110    RETURN(E_NOT_POSTED);
111
112  if (form->status & _IN_DRIVER)
113    RETURN(E_BAD_STATE);
114
115  Call_Hook(form, fieldterm);
116  Call_Hook(form, formterm);
117
118  werase(Get_Form_Window(form));
119  delwin(form->w);
120  form->w = (WINDOW *)0;
121  ClrStatus(form, _POSTED);
122  RETURN(E_OK);
123}
124
125/* frm_post.c ends here */
126