xref: /minix3/lib/libform/internals.h (revision a0e6850f820f09a03a1da1b4d78f9fafb3b9782f)
1 /*	$NetBSD: internals.h,v 1.10 2004/11/24 11:57:09 blymn Exp $	*/
2 
3 /*-
4  * Copyright (c) 1998-1999 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 <stdio.h>
33 #include "form.h"
34 
35 #ifndef FORMI_INTERNALS_H
36 #define FORMI_INTERNALS_H 1
37 
38 #ifdef DEBUG
39 extern FILE *dbg;
40 #endif
41 
42 /* direction definitions for _formi_pos_new_field */
43 #define _FORMI_BACKWARD 1
44 #define _FORMI_FORWARD  2
45 
46 /* define the default options for a form... */
47 #define DEFAULT_FORM_OPTS (O_VISIBLE | O_ACTIVE | O_PUBLIC | O_EDIT | \
48                            O_WRAP | O_BLANK | O_AUTOSKIP | O_NULLOK | \
49                            O_PASSOK | O_STATIC)
50 
51 /* definitions of the flags for the FIELDTYPE structure */
52 #define _TYPE_NO_FLAGS   0
53 #define _TYPE_HAS_ARGS   0x01
54 #define _TYPE_IS_LINKED  0x02
55 #define _TYPE_IS_BUILTIN 0x04
56 #define _TYPE_HAS_CHOICE 0x08
57 
58 typedef struct formi_type_link_struct formi_type_link;
59 
60 struct formi_type_link_struct
61 {
62 	FIELDTYPE *next;
63 	FIELDTYPE *prev;
64 };
65 
66 
67 struct _formi_page_struct
68 {
69 	int in_use;
70 	int first;
71 	int last;
72 	int top_left;
73 	int bottom_right;
74 };
75 
76 struct _formi_tab_stops
77 {
78 	struct _formi_tab_stops *fwd;
79 	struct _formi_tab_stops *back;
80 	unsigned char in_use;
81 	unsigned pos;
82 	unsigned size;
83 };
84 
85 typedef struct _formi_tab_stops _formi_tab_t;
86 
87 /* lines structure for the field - keeps start and ends and length of the
88  * lines in a field.
89  */
90 struct _formi_field_lines
91 {
92 	_FORMI_FIELD_LINES *prev;
93 	_FORMI_FIELD_LINES *next;
94 	unsigned allocated;
95 	unsigned length;
96 	unsigned expanded;
97 	char *string;
98 	unsigned char hard_ret; /* line contains hard return */
99 	_formi_tab_t *tabs;
100 };
101 
102 
103 /* function prototypes */
104 unsigned
105 _formi_skip_blanks(char *string, unsigned int start);
106 int
107 _formi_add_char(FIELD *cur, unsigned pos, char c);
108 void
109 _formi_calculate_tabs(_FORMI_FIELD_LINES *row);
110 int
111 _formi_draw_page(FORM *form);
112 int
113 _formi_find_pages(FORM *form);
114 int
115 _formi_field_choice(FORM *form, int c);
116 void
117 _formi_init_field_xpos(FIELD *field);
118 int
119 _formi_manipulate_field(FORM *form, int c);
120 int
121 _formi_pos_first_field(FORM *form);
122 int
123 _formi_pos_new_field(FORM *form, unsigned direction, unsigned use_sorted);
124 void
125 _formi_redraw_field(FORM *form, int field);
126 void
127 _formi_sort_fields(FORM *form);
128 void
129 _formi_stitch_fields(FORM *form);
130 int
131 _formi_tab_expanded_length(char *str, unsigned int start, unsigned int end);
132 int
133 _formi_update_field(FORM *form, int old_field);
134 int
135 _formi_validate_char(FIELD *field, char c);
136 int
137 _formi_validate_field(FORM *form);
138 int
139 _formi_wrap_field(FIELD *field, _FORMI_FIELD_LINES *pos);
140 int
141 _formi_sync_buffer(FIELD *field);
142 
143 #ifdef DEBUG
144 int
145 _formi_create_dbg_file(void);
146 #endif /* DEBUG */
147 
148 #endif
149 
150 
151 
152