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internals.h revision 1.11 
      1 /*	$NetBSD: internals.h,v 1.11 2016/03/09 19:47:13 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998-1999 Brett Lymn
      5  *                         (blymn (at) baea.com.au, brett_lymn (at) 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 /* direction definitions for _formi_pos_new_field */
     39 #define _FORMI_BACKWARD 1
     40 #define _FORMI_FORWARD  2
     41 
     42 /* define the default options for a form... */
     43 #define DEFAULT_FORM_OPTS (O_VISIBLE | O_ACTIVE | O_PUBLIC | O_EDIT | \
     44                            O_WRAP | O_BLANK | O_AUTOSKIP | O_NULLOK | \
     45                            O_PASSOK | O_STATIC)
     46 
     47 /* definitions of the flags for the FIELDTYPE structure */
     48 #define _TYPE_NO_FLAGS   0
     49 #define _TYPE_HAS_ARGS   0x01
     50 #define _TYPE_IS_LINKED  0x02
     51 #define _TYPE_IS_BUILTIN 0x04
     52 #define _TYPE_HAS_CHOICE 0x08
     53 
     54 typedef struct formi_type_link_struct formi_type_link;
     55 
     56 struct formi_type_link_struct
     57 {
     58 	FIELDTYPE *next;
     59 	FIELDTYPE *prev;
     60 };
     61 
     62 
     63 struct _formi_page_struct
     64 {
     65 	int in_use;
     66 	int first;
     67 	int last;
     68 	int top_left;
     69 	int bottom_right;
     70 };
     71 
     72 struct _formi_tab_stops
     73 {
     74 	struct _formi_tab_stops *fwd;
     75 	struct _formi_tab_stops *back;
     76 	unsigned char in_use;
     77 	unsigned pos;
     78 	unsigned size;
     79 };
     80 
     81 typedef struct _formi_tab_stops _formi_tab_t;
     82 
     83 /* lines structure for the field - keeps start and ends and length of the
     84  * lines in a field.
     85  */
     86 struct _formi_field_lines
     87 {
     88 	_FORMI_FIELD_LINES *prev;
     89 	_FORMI_FIELD_LINES *next;
     90 	unsigned allocated;
     91 	unsigned length;
     92 	unsigned expanded;
     93 	char *string;
     94 	unsigned char hard_ret; /* line contains hard return */
     95 	_formi_tab_t *tabs;
     96 };
     97 
     98 
     99 /* function prototypes */
    100 unsigned
    101 _formi_skip_blanks(char *string, unsigned int start);
    102 int
    103 _formi_add_char(FIELD *cur, unsigned pos, char c);
    104 void
    105 _formi_calculate_tabs(_FORMI_FIELD_LINES *row);
    106 int
    107 _formi_draw_page(FORM *form);
    108 int
    109 _formi_find_pages(FORM *form);
    110 int
    111 _formi_field_choice(FORM *form, int c);
    112 void
    113 _formi_init_field_xpos(FIELD *field);
    114 int
    115 _formi_manipulate_field(FORM *form, int c);
    116 int
    117 _formi_pos_first_field(FORM *form);
    118 int
    119 _formi_pos_new_field(FORM *form, unsigned direction, unsigned use_sorted);
    120 void
    121 _formi_redraw_field(FORM *form, int field);
    122 void
    123 _formi_sort_fields(FORM *form);
    124 void
    125 _formi_stitch_fields(FORM *form);
    126 int
    127 _formi_tab_expanded_length(char *str, unsigned int start, unsigned int end);
    128 int
    129 _formi_update_field(FORM *form, int old_field);
    130 int
    131 _formi_validate_char(FIELD *field, char c);
    132 int
    133 _formi_validate_field(FORM *form);
    134 int
    135 _formi_wrap_field(FIELD *field, _FORMI_FIELD_LINES *pos);
    136 int
    137 _formi_sync_buffer(FIELD *field);
    138 
    139 #ifdef DEBUG
    140 void _formi_dbg_printf(const char *, ...) __printflike(1, 2);
    141 #else
    142 #define _formi_dbg_printf(a,...)
    143 #endif /* DEBUG */
    144 
    145 #endif
    146