form.h revision 1.4
1 /* $NetBSD: form.h,v 1.4 2001/01/16 02:50:29 cgd 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 withough 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 #ifndef FORM_H 33 #define FORM_H 1 34 #include <sys/queue.h> 35 #include <stdarg.h> 36 #include <curses.h> 37 #include <eti.h> 38 39 /* Define the types of field justification that can be used. */ 40 #define NO_JUSTIFICATION 0 41 #define JUSTIFY_RIGHT 1 42 #define JUSTIFY_LEFT 2 43 #define JUSTIFY_CENTER 3 44 45 /* Define the max and min valid justification styles for range checking */ 46 #define MIN_JUST_STYLE NO_JUSTIFICATION 47 #define MAX_JUST_STYLE JUSTIFY_CENTER 48 49 /* Options for the fields */ 50 typedef unsigned int Form_Options; 51 52 #define O_VISIBLE 0x001 /* Field is visible */ 53 #define O_ACTIVE 0x002 /* Field is active in the form */ 54 #define O_PUBLIC 0x004 /* The contents entered into the field is echoed */ 55 #define O_EDIT 0x008 /* Can edit the field */ 56 #define O_WRAP 0x010 /* The field contents can line wrap */ 57 #define O_BLANK 0x020 /* Blank the field on modification */ 58 #define O_AUTOSKIP 0x040 /* Skip to next field when current is full */ 59 #define O_NULLOK 0x080 /* Field is allowed to contain no data */ 60 #define O_STATIC 0x100 /* Field is not dynamic */ 61 #define O_PASSOK 0x200 /* ??? */ 62 63 /* Form driver requests */ 64 #define REQ_MIN_REQUEST 0x100 /* must equal value of the first request */ 65 66 #define REQ_NEXT_PAGE 0x100 /* next page in form */ 67 #define REQ_PREV_PAGE 0x101 /* previous page in form */ 68 #define REQ_FIRST_PAGE 0x102 /* goto first page in form */ 69 #define REQ_LAST_PAGE 0x103 /* goto last page in form */ 70 71 #define REQ_NEXT_FIELD 0x104 /* move to the next field */ 72 #define REQ_PREV_FIELD 0x105 /* move to the previous field */ 73 #define REQ_FIRST_FIELD 0x106 /* goto the first field */ 74 #define REQ_LAST_FIELD 0x107 /* goto the last field */ 75 76 #define REQ_SNEXT_FIELD 0x108 /* move to the next field in sorted order */ 77 #define REQ_SPREV_FIELD 0x109 /* move to the prev field in sorted order */ 78 #define REQ_SFIRST_FIELD 0x10a /* move to the first sorted field */ 79 #define REQ_SLAST_FIELD 0x10b /* move to the last sorted field */ 80 81 #define REQ_LEFT_FIELD 0x10c /* go left one field */ 82 #define REQ_RIGHT_FIELD 0x10d /* go right one field */ 83 #define REQ_UP_FIELD 0x10e /* go up one field */ 84 #define REQ_DOWN_FIELD 0x10f /* go down one field */ 85 86 #define REQ_NEXT_CHAR 0x110 /* move to the next char in field */ 87 #define REQ_PREV_CHAR 0x111 /* move to the previous char in field */ 88 #define REQ_NEXT_LINE 0x112 /* go to the next line in the field */ 89 #define REQ_PREV_LINE 0x113 /* go to the previous line in the field */ 90 #define REQ_NEXT_WORD 0x114 /* go to the next word in the field */ 91 #define REQ_PREV_WORD 0x115 /* go to the previous word in the field */ 92 #define REQ_BEG_FIELD 0x116 /* go to the beginning of the field */ 93 #define REQ_END_FIELD 0x117 /* go to the end of the field */ 94 #define REQ_BEG_LINE 0x118 /* go to the beginning of the line */ 95 #define REQ_END_LINE 0x119 /* go to the end of the line */ 96 #define REQ_LEFT_CHAR 0x11a /* move left in the field */ 97 #define REQ_RIGHT_CHAR 0x11b /* move right in the field */ 98 #define REQ_UP_CHAR 0x11c /* move up in the field */ 99 #define REQ_DOWN_CHAR 0x11d /* move down in the field */ 100 101 #define REQ_NEW_LINE 0x11e /* insert/overlay a new line */ 102 #define REQ_INS_CHAR 0x11f /* insert a blank char at the cursor */ 103 #define REQ_INS_LINE 0x120 /* insert a blank line at the cursor */ 104 105 #define REQ_DEL_CHAR 0x121 /* delete the current character */ 106 #define REQ_DEL_PREV 0x122 /* delete the character before the current */ 107 #define REQ_DEL_LINE 0x123 /* delete the current line */ 108 #define REQ_DEL_WORD 0x124 /* delete the word at the cursor */ 109 #define REQ_CLR_EOL 0x125 /* clear to the end of the line */ 110 #define REQ_CLR_EOF 0x126 /* clear to the end of the field */ 111 #define REQ_CLR_FIELD 0x127 /* clear the field */ 112 113 #define REQ_OVL_MODE 0x128 /* overlay mode */ 114 #define REQ_INS_MODE 0x129 /* insert mode */ 115 116 #define REQ_SCR_FLINE 0x12a /* scroll field forward one line */ 117 #define REQ_SCR_BLINE 0x12b /* scroll field backward one line */ 118 #define REQ_SCR_FPAGE 0x12c /* scroll field forward one page */ 119 #define REQ_SCR_BPAGE 0x12d /* scroll field backward one page */ 120 #define REQ_SCR_FHPAGE 0x12e /* scroll field forward half a page */ 121 #define REQ_SCR_BHPAGE 0x12f /* scroll field backward half a page */ 122 123 #define REQ_SCR_FCHAR 0x130 /* horizontal scroll forward a character */ 124 #define REQ_SCR_BCHAR 0x131 /* horizontal scroll backward a character */ 125 #define REQ_SCR_HFLINE 0x132 /* horizontal scroll forward a line */ 126 #define REQ_SCR_HBLINE 0x133 /* horizontal scroll backward a line */ 127 #define REQ_SCR_HFHALF 0x134 /* horizontal scroll forward half a line */ 128 #define REQ_SCR_HBHALF 0x135 /* horizontal scroll backward half a line */ 129 130 #define REQ_VALIDATION 0x136 /* validate the field */ 131 #define REQ_PREV_CHOICE 0x137 /* display previous field choice */ 132 #define REQ_NEXT_CHOICE 0x138 /* display next field choice */ 133 134 #define REQ_MAX_COMMAND 0x138 /* must match the last driver command */ 135 136 typedef struct _form_string { 137 size_t allocated; 138 unsigned int length; 139 char *string; 140 } FORM_STR; 141 142 typedef struct _form_field FIELD; 143 typedef struct _form_struct FORM; 144 typedef struct _form_fieldtype FIELDTYPE; 145 146 typedef struct _formi_page_struct _FORMI_PAGE_START; 147 typedef struct formi_type_link_struct _FORMI_TYPE_LINK; 148 149 typedef void (*Form_Hook)(FORM *); 150 151 /* definition of a field in the form */ 152 struct _form_field { 153 unsigned int rows; /* rows in the field */ 154 unsigned int cols; /* columns in the field */ 155 unsigned int drows; /* dynamic rows */ 156 unsigned int dcols; /* dynamic columns */ 157 unsigned int max; /* maximum growth */ 158 unsigned int form_row; /* starting row in the form subwindow */ 159 unsigned int form_col; /* starting column in the form subwindow */ 160 unsigned int nrows; /* number of off screen rows */ 161 int index; /* index of this field in form fields array. */ 162 int nbuf; /* number of buffers associated with this field */ 163 int buf0_status; /* set to true if buffer 0 has changed. */ 164 int justification; /* justification style of the field */ 165 int overlay; /* set to true if field is in overlay mode */ 166 unsigned int start_char; /* starting char in string (horiz scroll) */ 167 unsigned int start_line; /* starting line in field (vert scroll) */ 168 unsigned int hscroll; /* amount of horizontal scroll... */ 169 unsigned int row_count; /* number of rows actually used in field */ 170 unsigned int cursor_xpos; /* x pos of cursor in field */ 171 unsigned int cursor_ypos; /* y pos of cursor in field */ 172 short page_break; /* start of a new page on the form if 1 */ 173 short page; /* number of the page this field is on */ 174 chtype fore; /* character attributes for the foreground */ 175 chtype back; /* character attributes for the background */ 176 int pad; /* padding character */ 177 Form_Options opts; /* options for the field */ 178 FORM *parent; /* the form this field is bound to, if any */ 179 FIELD *up; /* field above this one */ 180 FIELD *down; /* field below this one */ 181 FIELD *left; /* field to the left of this one */ 182 FIELD *right; /* field to the right of this one */ 183 void *userptr; /* user defined pointer. */ 184 FIELD *link; /* used if fields are linked */ 185 FIELDTYPE *type; /* type struct for the field */ 186 CIRCLEQ_ENTRY(_form_field) glue; /* circle queue glue for sorting fields */ 187 char *args; /* args for field type. */ 188 FORM_STR *buffers; /* array of buffers for the field */ 189 }; 190 191 /* define the types of fields we can have */ 192 extern FIELDTYPE *TYPE_ALNUM; 193 extern FIELDTYPE *TYPE_ALPHA; 194 extern FIELDTYPE *TYPE_ENUM; 195 extern FIELDTYPE *TYPE_INTEGER; 196 extern FIELDTYPE *TYPE_NUMERIC; 197 extern FIELDTYPE *TYPE_REGEXP; 198 extern FIELDTYPE *TYPE_USER; 199 200 /* definition of a field type. */ 201 struct _form_fieldtype { 202 unsigned flags; /* status of the type */ 203 unsigned refcount; /* in use if > 0 */ 204 _FORMI_TYPE_LINK *link; /* set if this type is linked */ 205 char *args; 206 207 208 char * (*make_args)(va_list *); /* make the args for the type */ 209 char * (*copy_args)(char *); /* copy the args for the type */ 210 void (*free_args)(char *); /* free storage used by the args */ 211 int (*field_check)(FIELD *, char *); /* field validation routine */ 212 int (*char_check)(int, char *); /* char validation routine */ 213 int (*next_choice)(FIELD *, char *); /* function to select next 214 choice */ 215 int (*prev_choice)(FIELD *, char *); /* function to select prev 216 choice */ 217 }; 218 219 /*definition of a form */ 220 221 struct _form_struct { 222 int in_init; /* true if performing a init or term function */ 223 int posted; /* the form is posted */ 224 int wrap; /* wrap from last field to first field if true */ 225 WINDOW *win; /* window for the form */ 226 WINDOW *subwin; /* subwindow for the form */ 227 void *userptr; /* user defined pointer */ 228 Form_Options opts; /* options for the form */ 229 Form_Hook form_init; /* function called when form posted and 230 after page change */ 231 Form_Hook form_term; /* function called when form is unposted and 232 before page change */ 233 Form_Hook field_init; /* function called when form posted and after 234 current field changes */ 235 Form_Hook field_term; /* function called when form unposted and 236 before current field changes */ 237 int field_count; /* number of fields attached */ 238 int cur_field; /* current field */ 239 int page; /* current page of form */ 240 int max_page; /* number of pages in the form */ 241 int subwin_created; /* libform made the window */ 242 _FORMI_PAGE_START *page_starts; /* dynamic array of fields that start 243 the pages */ 244 CIRCLEQ_HEAD(_formi_sort_head, _form_field) sorted_fields; /* sorted field 245 list */ 246 FIELD **fields; /* array of fields attached to this form. */ 247 }; 248 249 /* Public function prototypes. */ 250 __BEGIN_DECLS 251 252 FIELD *current_field(FORM *); 253 int data_ahead(FORM *); 254 int data_behind(FORM *); 255 FIELD *dup_field(FIELD *, int, int); 256 int dynamic_field_info(FIELD *, int *, int *, int *); 257 char *field_arg(FIELD *); 258 chtype field_back(FIELD *); 259 char *field_buffer(FIELD *, int); 260 int field_count(FORM *); 261 chtype field_fore(FIELD *); 262 int field_index(FIELD *); 263 int field_info __P((FIELD *, int *, int *, int *, int *, 264 int *, int *)); 265 Form_Hook field_init(FORM *); 266 int field_just(FIELD *); 267 Form_Options field_opts(FIELD *); 268 int field_opts_off(FIELD *, Form_Options); 269 int field_opts_on(FIELD *, Form_Options); 270 int field_pad(FIELD *); 271 int field_status(FIELD *); 272 Form_Hook field_term(FORM *); 273 FIELDTYPE *field_type(FIELD *); 274 void *field_userptr(FIELD *); 275 int form_driver(FORM *, int); 276 FIELD **form_fields(FORM *); 277 Form_Hook form_init(FORM *); 278 Form_Options form_opts(FORM *); 279 int form_opts_off(FORM *, Form_Options); 280 int form_opts_on(FORM *, Form_Options); 281 int form_page(FORM *); 282 WINDOW *form_sub(FORM *); 283 Form_Hook form_term(FORM *); 284 void *form_userptr(FORM *); 285 WINDOW *form_win(FORM *); 286 int free_field(FIELD *); 287 int free_fieldtype(FIELDTYPE *); 288 int free_form(FORM *); 289 FIELD *link_field(FIELD *, int, int); 290 FIELDTYPE *link_fieldtype(FIELDTYPE *, FIELDTYPE *); 291 int move_field(FIELD *, int, int); 292 FIELD *new_field(int, int, int, int, int, int); 293 FIELDTYPE *new_fieldtype(int (* field_check)(FIELD *, char *), 294 int (* char_check)(int, char *)); 295 FORM *new_form(FIELD **); 296 int new_page(FIELD *); 297 int pos_form_cursor(FORM *); 298 int post_form(FORM *); 299 int scale_form(FORM *, int *, int *); 300 int set_current_field(FORM *, FIELD *); 301 int set_field_back(FIELD *, chtype); 302 int set_field_buffer(FIELD *, int, char *); 303 int set_field_fore(FIELD *, chtype); 304 int set_field_init(FORM *, Form_Hook); 305 int set_field_just(FIELD *, int); 306 int set_field_opts(FIELD *, Form_Options); 307 int set_field_pad(FIELD *, int); 308 int set_field_status(FIELD *, int); 309 int set_field_term(FORM *, Form_Hook); 310 int set_field_type(FIELD *, FIELDTYPE *, ...); 311 int set_field_userptr(FIELD *, void *); 312 int set_fieldtype_arg(FIELDTYPE *, char *(*)(va_list *), 313 char *(*)(char *), 314 void (*)(char *)); 315 int set_fieldtype_choice(FIELDTYPE *, int (*)(FIELD *, char *), 316 int (*)(FIELD *, char *)); 317 int set_form_fields(FORM *, FIELD **); 318 int set_form_init(FORM *, Form_Hook); 319 int set_form_opts(FORM *, Form_Options); 320 int set_form_page(FORM *, int); 321 int set_form_sub(FORM *, WINDOW *); 322 int set_form_term(FORM *, Form_Hook); 323 int set_form_userptr(FORM *, void *); 324 int set_form_win(FORM *, WINDOW *); 325 int set_max_field(FIELD *, int); 326 int set_new_page(FIELD *, int); 327 int unpost_form(FORM *); 328 329 __END_DECLS 330 331 #endif /* FORM_H */ 332
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