post.c revision 1.9 
1/*	$NetBSD: post.c,v 1.9 2003/03/09 00:57:19 lukem Exp $	*/
2
3/*-
4 * Copyright (c) 1998-2000 Brett Lymn
5 *                         (blymn@baea.com.au, brett_lymn@yahoo.com.au)
6 * All rights reserved.
7 *
8 * This code has been donated to The NetBSD Foundation by the Author.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. The name of the author may not be used to endorse or promote products
16 *    derived from this software without specific prior written permission
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 *
30 */
31
32#include <sys/cdefs.h>
33__RCSID("$NetBSD: post.c,v 1.9 2003/03/09 00:57:19 lukem Exp $");
34
35#include "form.h"
36#include "internals.h"
37
38/*
39 * Post the form to the screen.
40 */
41int
42post_form(FORM *form)
43{
44	int rows, cols, status;
45
46	if (form == NULL)
47		return E_BAD_ARGUMENT;
48
49	if (form->posted == 1)
50		return E_POSTED;
51
52	if ((form->fields == NULL) || (form->fields[0] == NULL))
53		return E_NOT_CONNECTED;
54
55	if (form->in_init == 1)
56		return E_BAD_STATE;
57
58	if (scale_form(form, &rows, &cols) != E_OK)
59		return E_SYSTEM_ERROR;
60
61	if ((form->scrwin != NULL) && ((rows > getmaxy(form->scrwin))
62				       || (cols > getmaxx(form->scrwin)))) {
63		return E_NO_ROOM;
64	}
65
66#ifdef DEBUG
67	if (_formi_create_dbg_file() != E_OK)
68		return E_SYSTEM_ERROR;
69#endif
70
71	form->in_init = 1;
72	if (form->form_init != NULL)
73		form->form_init(form);
74
75	if (form->field_init != NULL)
76		form->field_init(form);
77	form->in_init = 0;
78
79	_formi_pos_first_field(form);
80	if ((status = _formi_draw_page(form)) != E_OK)
81		return status;
82
83	form->posted = 1;
84	pos_form_cursor(form);
85
86	return E_OK;
87}
88
89/*
90 * Unpost the form from the screen
91 */
92int
93unpost_form(FORM *form)
94{
95
96	if (form == NULL)
97		return E_BAD_ARGUMENT;
98
99	if (form->posted != 1)
100		return E_NOT_POSTED;
101
102	if (form->in_init == 1)
103		return E_BAD_STATE;
104
105	form->in_init = 1;
106	if (form->field_term != NULL)
107		form->field_term(form);
108
109	if (form->form_term != NULL)
110		form->form_term(form);
111	form->in_init = 0;
112
113	wclear(form->scrwin);
114
115	form->posted = 0;
116
117	return E_OK;
118}
119
120