form.h revision 1.15
1 /* $NetBSD: form.h,v 1.15 2001/07/18 12:27:53 blymn 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 #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 /* form options */ 53 #define O_BS_OVERLOAD (0x001) 54 #define O_NL_OVERLOAD (0x002) 55 56 /* field options */ 57 #define O_VISIBLE (0x001) /* Field is visible */ 58 #define O_ACTIVE (0x002) /* Field is active in the form */ 59 #define O_PUBLIC (0x004) /* The contents entered into the field is echoed */ 60 #define O_EDIT (0x008) /* Can edit the field */ 61 #define O_WRAP (0x010) /* The field contents can line wrap */ 62 #define O_BLANK (0x020) /* Blank the field on modification */ 63 #define O_AUTOSKIP (0x040) /* Skip to next field when current is full */ 64 #define O_NULLOK (0x080) /* Field is allowed to contain no data */ 65 #define O_STATIC (0x100) /* Field is not dynamic */ 66 #define O_PASSOK (0x200) /* An umodified field is OK */ 67 68 /* 69 * Form driver requests - be VERY careful about changing the ordering 70 * of the requests below. The form driver code depends on a particular 71 * order for the requests. 72 */ 73 #define REQ_MIN_REQUEST (KEY_MAX + 0x101) /* must equal value of the 74 first request */ 75 76 #define REQ_NEXT_PAGE (KEY_MAX + 0x101) /* next page in form */ 77 #define REQ_PREV_PAGE (KEY_MAX + 0x102) /* previous page in form */ 78 #define REQ_FIRST_PAGE (KEY_MAX + 0x103) /* goto first page in form */ 79 #define REQ_LAST_PAGE (KEY_MAX + 0x104) /* goto last page in form */ 80 81 #define REQ_NEXT_FIELD (KEY_MAX + 0x105) /* move to the next field */ 82 #define REQ_PREV_FIELD (KEY_MAX + 0x106) /* move to the previous field */ 83 #define REQ_FIRST_FIELD (KEY_MAX + 0x107) /* goto the first field */ 84 #define REQ_LAST_FIELD (KEY_MAX + 0x108) /* goto the last field */ 85 86 #define REQ_SNEXT_FIELD (KEY_MAX + 0x109) /* move to the next field 87 in sorted order */ 88 #define REQ_SPREV_FIELD (KEY_MAX + 0x10a) /* move to the prev field 89 in sorted order */ 90 #define REQ_SFIRST_FIELD (KEY_MAX + 0x10b) /* move to the first 91 sorted field */ 92 #define REQ_SLAST_FIELD (KEY_MAX + 0x10c) /* move to the last sorted 93 field */ 94 95 #define REQ_LEFT_FIELD (KEY_MAX + 0x10d) /* go left one field */ 96 #define REQ_RIGHT_FIELD (KEY_MAX + 0x10e) /* go right one field */ 97 #define REQ_UP_FIELD (KEY_MAX + 0x10f) /* go up one field */ 98 #define REQ_DOWN_FIELD (KEY_MAX + 0x110) /* go down one field */ 99 100 #define REQ_NEXT_CHAR (KEY_MAX + 0x111) /* move to the next char 101 in field */ 102 #define REQ_PREV_CHAR (KEY_MAX + 0x112) /* move to the previous 103 char in field */ 104 #define REQ_NEXT_LINE (KEY_MAX + 0x113) /* go to the next line in 105 the field */ 106 #define REQ_PREV_LINE (KEY_MAX + 0x114) /* go to the previous line 107 in the field */ 108 #define REQ_NEXT_WORD (KEY_MAX + 0x115) /* go to the next word in 109 the field */ 110 #define REQ_PREV_WORD (KEY_MAX + 0x116) /* go to the previous word 111 in the field */ 112 #define REQ_BEG_FIELD (KEY_MAX + 0x117) /* go to the beginning of 113 the field */ 114 #define REQ_END_FIELD (KEY_MAX + 0x118) /* go to the end of the field */ 115 #define REQ_BEG_LINE (KEY_MAX + 0x119) /* go to the beginning of 116 the line */ 117 #define REQ_END_LINE (KEY_MAX + 0x11a) /* go to the end of the 118 line */ 119 #define REQ_LEFT_CHAR (KEY_MAX + 0x11b) /* move left in the field */ 120 #define REQ_RIGHT_CHAR (KEY_MAX + 0x11c) /* move right in the field */ 121 #define REQ_UP_CHAR (KEY_MAX + 0x11d) /* move up in the field */ 122 #define REQ_DOWN_CHAR (KEY_MAX + 0x11e) /* move down in the field */ 123 124 #define REQ_NEW_LINE (KEY_MAX + 0x11f) /* insert/overlay a new line */ 125 #define REQ_INS_CHAR (KEY_MAX + 0x120) /* insert a blank char at 126 the cursor */ 127 #define REQ_INS_LINE (KEY_MAX + 0x121) /* insert a blank line at 128 the cursor */ 129 130 #define REQ_DEL_CHAR (KEY_MAX + 0x122) /* delete the current character */ 131 #define REQ_DEL_PREV (KEY_MAX + 0x123) /* delete the character 132 before the current */ 133 #define REQ_DEL_LINE (KEY_MAX + 0x124) /* delete the current line */ 134 #define REQ_DEL_WORD (KEY_MAX + 0x125) /* delete the word at the cursor */ 135 #define REQ_CLR_EOL (KEY_MAX + 0x126) /* clear to the end of the line */ 136 #define REQ_CLR_EOF (KEY_MAX + 0x127) /* clear to the end of the field */ 137 #define REQ_CLR_FIELD (KEY_MAX + 0x128) /* clear the field */ 138 139 #define REQ_OVL_MODE (KEY_MAX + 0x129) /* overlay mode */ 140 #define REQ_INS_MODE (KEY_MAX + 0x12a) /* insert mode */ 141 142 #define REQ_SCR_FLINE (KEY_MAX + 0x12b) /* scroll field forward one line */ 143 #define REQ_SCR_BLINE (KEY_MAX + 0x12c) /* scroll field backward 144 one line */ 145 #define REQ_SCR_FPAGE (KEY_MAX + 0x12d) /* scroll field forward one page */ 146 #define REQ_SCR_BPAGE (KEY_MAX + 0x12e) /* scroll field backward 147 one page */ 148 #define REQ_SCR_FHPAGE (KEY_MAX + 0x12f) /* scroll field forward 149 half a page */ 150 #define REQ_SCR_BHPAGE (KEY_MAX + 0x130) /* scroll field backward 151 half a page */ 152 153 #define REQ_SCR_FCHAR (KEY_MAX + 0x131) /* horizontal scroll 154 forward a character */ 155 #define REQ_SCR_BCHAR (KEY_MAX + 0x132) /* horizontal scroll 156 backward a character */ 157 #define REQ_SCR_HFLINE (KEY_MAX + 0x133) /* horizontal scroll 158 forward a line */ 159 #define REQ_SCR_HBLINE (KEY_MAX + 0x134) /* horizontal scroll 160 backward a line */ 161 #define REQ_SCR_HFHALF (KEY_MAX + 0x135) /* horizontal scroll 162 forward half a line */ 163 #define REQ_SCR_HBHALF (KEY_MAX + 0x136) /* horizontal scroll 164 backward half a line */ 165 166 #define REQ_VALIDATION (KEY_MAX + 0x137) /* validate the field */ 167 #define REQ_PREV_CHOICE (KEY_MAX + 0x138) /* display previous field choice */ 168 #define REQ_NEXT_CHOICE (KEY_MAX + 0x139) /* display next field choice */ 169 170 #define REQ_MAX_COMMAND (KEY_MAX + 0x139) /* must match the last 171 driver command */ 172 173 typedef struct _form_string { 174 size_t allocated; 175 unsigned int length; 176 char *string; 177 } FORM_STR; 178 179 typedef struct _form_field FIELD; 180 typedef struct _form_struct FORM; 181 typedef struct _form_fieldtype FIELDTYPE; 182 183 typedef struct _formi_page_struct _FORMI_PAGE_START; 184 typedef struct formi_type_link_struct _FORMI_TYPE_LINK; 185 typedef struct _formi_field_lines _FORMI_FIELD_LINES; 186 187 188 typedef void (*Form_Hook)(FORM *); 189 190 /* definition of a field in the form */ 191 struct _form_field { 192 unsigned int rows; /* rows in the field */ 193 unsigned int cols; /* columns in the field */ 194 unsigned int drows; /* dynamic rows */ 195 unsigned int dcols; /* dynamic columns */ 196 unsigned int max; /* maximum growth */ 197 unsigned int form_row; /* starting row in the form subwindow */ 198 unsigned int form_col; /* starting column in the form subwindow */ 199 unsigned int nrows; /* number of off screen rows */ 200 int index; /* index of this field in form fields array. */ 201 int nbuf; /* number of buffers associated with this field */ 202 int buf0_status; /* set to true if buffer 0 has changed. */ 203 int justification; /* justification style of the field */ 204 int overlay; /* set to true if field is in overlay mode */ 205 unsigned int start_char; /* starting char in string (horiz scroll) */ 206 unsigned int start_line; /* starting line in field (vert scroll) */ 207 unsigned int row_count; /* number of rows actually used in field */ 208 unsigned int cursor_xpos; /* x pos of cursor in field */ 209 unsigned int cursor_ypos; /* y pos of cursor in field */ 210 short page_break; /* start of a new page on the form if 1 */ 211 short page; /* number of the page this field is on */ 212 chtype fore; /* character attributes for the foreground */ 213 chtype back; /* character attributes for the background */ 214 int pad; /* padding character */ 215 Form_Options opts; /* options for the field */ 216 FORM *parent; /* the form this field is bound to, if any */ 217 FIELD *up; /* field above this one */ 218 FIELD *down; /* field below this one */ 219 FIELD *left; /* field to the left of this one */ 220 FIELD *right; /* field to the right of this one */ 221 void *userptr; /* user defined pointer. */ 222 FIELD *link; /* used if fields are linked */ 223 FIELDTYPE *type; /* type struct for the field */ 224 CIRCLEQ_ENTRY(_form_field) glue; /* circle queue glue for sorting fields */ 225 char *args; /* args for field type. */ 226 unsigned int lines_alloced; /* number of slots allocated in lines 227 array */ 228 _FORMI_FIELD_LINES *lines; /* array of the starts and ends of lines */ 229 FORM_STR *buffers; /* array of buffers for the field */ 230 }; 231 232 /* define the types of fields we can have */ 233 extern FIELDTYPE *TYPE_ALNUM; 234 extern FIELDTYPE *TYPE_ALPHA; 235 extern FIELDTYPE *TYPE_ENUM; 236 extern FIELDTYPE *TYPE_INTEGER; 237 extern FIELDTYPE *TYPE_NUMERIC; 238 extern FIELDTYPE *TYPE_REGEXP; 239 extern FIELDTYPE *TYPE_IPV4; 240 extern FIELDTYPE *TYPE_IPV6; 241 extern FIELDTYPE *TYPE_USER; 242 243 /* definition of a field type. */ 244 struct _form_fieldtype { 245 unsigned flags; /* status of the type */ 246 unsigned refcount; /* in use if > 0 */ 247 _FORMI_TYPE_LINK *link; /* set if this type is linked */ 248 249 char * (*make_args)(va_list *); /* make the args for the type */ 250 char * (*copy_args)(char *); /* copy the args for the type */ 251 void (*free_args)(char *); /* free storage used by the args */ 252 int (*field_check)(FIELD *, char *); /* field validation routine */ 253 int (*char_check)(int, char *); /* char validation routine */ 254 int (*next_choice)(FIELD *, char *); /* function to select next 255 choice */ 256 int (*prev_choice)(FIELD *, char *); /* function to select prev 257 choice */ 258 }; 259 260 /*definition of a form */ 261 262 struct _form_struct { 263 int in_init; /* true if performing a init or term function */ 264 int posted; /* the form is posted */ 265 int wrap; /* wrap from last field to first field if true */ 266 WINDOW *win; /* window for the form */ 267 WINDOW *subwin; /* subwindow for the form */ 268 WINDOW *scrwin; /* this is the window to use for output */ 269 void *userptr; /* user defined pointer */ 270 Form_Options opts; /* options for the form */ 271 Form_Hook form_init; /* function called when form posted and 272 after page change */ 273 Form_Hook form_term; /* function called when form is unposted and 274 before page change */ 275 Form_Hook field_init; /* function called when form posted and after 276 current field changes */ 277 Form_Hook field_term; /* function called when form unposted and 278 before current field changes */ 279 int field_count; /* number of fields attached */ 280 int cur_field; /* current field */ 281 int page; /* current page of form */ 282 int max_page; /* number of pages in the form */ 283 _FORMI_PAGE_START *page_starts; /* dynamic array of fields that start 284 the pages */ 285 CIRCLEQ_HEAD(_formi_sort_head, _form_field) sorted_fields; /* sorted field 286 list */ 287 FIELD **fields; /* array of fields attached to this form. */ 288 }; 289 290 /* Public function prototypes. */ 291 __BEGIN_DECLS 292 293 FIELD *current_field(FORM *); 294 int data_ahead(FORM *); 295 int data_behind(FORM *); 296 FIELD *dup_field(FIELD *, int, int); 297 int dynamic_field_info(FIELD *, int *, int *, int *); 298 char *field_arg(FIELD *); 299 chtype field_back(FIELD *); 300 char *field_buffer(FIELD *, int); 301 int field_count(FORM *); 302 chtype field_fore(FIELD *); 303 int field_index(FIELD *); 304 int field_info(FIELD *, int *, int *, int *, int *, int *, int *); 305 Form_Hook field_init(FORM *); 306 int field_just(FIELD *); 307 Form_Options field_opts(FIELD *); 308 int field_opts_off(FIELD *, Form_Options); 309 int field_opts_on(FIELD *, Form_Options); 310 int field_pad(FIELD *); 311 int field_status(FIELD *); 312 Form_Hook field_term(FORM *); 313 FIELDTYPE *field_type(FIELD *); 314 void *field_userptr(FIELD *); 315 int form_driver(FORM *, int); 316 FIELD **form_fields(FORM *); 317 Form_Hook form_init(FORM *); 318 int form_max_page(FORM *); 319 Form_Options form_opts(FORM *); 320 int form_opts_off(FORM *, Form_Options); 321 int form_opts_on(FORM *, Form_Options); 322 int form_page(FORM *); 323 WINDOW *form_sub(FORM *); 324 Form_Hook form_term(FORM *); 325 void *form_userptr(FORM *); 326 WINDOW *form_win(FORM *); 327 int free_field(FIELD *); 328 int free_fieldtype(FIELDTYPE *); 329 int free_form(FORM *); 330 FIELD *link_field(FIELD *, int, int); 331 FIELDTYPE *link_fieldtype(FIELDTYPE *, FIELDTYPE *); 332 int move_field(FIELD *, int, int); 333 FIELD *new_field(int, int, int, int, int, int); 334 FIELDTYPE *new_fieldtype(int (* field_check)(FIELD *, char *), 335 int (* char_check)(int, char *)); 336 FORM *new_form(FIELD **); 337 int new_page(FIELD *); 338 int pos_form_cursor(FORM *); 339 int post_form(FORM *); 340 int scale_form(FORM *, int *, int *); 341 int set_current_field(FORM *, FIELD *); 342 int set_field_back(FIELD *, chtype); 343 int set_field_buffer(FIELD *, int, char *); 344 int set_field_fore(FIELD *, chtype); 345 int set_field_init(FORM *, Form_Hook); 346 int set_field_just(FIELD *, int); 347 int set_field_opts(FIELD *, Form_Options); 348 int set_field_pad(FIELD *, int); 349 int set_field_status(FIELD *, int); 350 int set_field_term(FORM *, Form_Hook); 351 int set_field_type(FIELD *, FIELDTYPE *, ...); 352 int set_field_userptr(FIELD *, void *); 353 int set_fieldtype_arg(FIELDTYPE *, char *(*)(va_list *), 354 char *(*)(char *), 355 void (*)(char *)); 356 int set_fieldtype_choice(FIELDTYPE *, int (*)(FIELD *, char *), 357 int (*)(FIELD *, char *)); 358 int set_form_fields(FORM *, FIELD **); 359 int set_form_init(FORM *, Form_Hook); 360 int set_form_opts(FORM *, Form_Options); 361 int set_form_page(FORM *, int); 362 int set_form_sub(FORM *, WINDOW *); 363 int set_form_term(FORM *, Form_Hook); 364 int set_form_userptr(FORM *, void *); 365 int set_form_win(FORM *, WINDOW *); 366 int set_max_field(FIELD *, int); 367 int set_new_page(FIELD *, int); 368 int unpost_form(FORM *); 369 370 __END_DECLS 371 372 #endif /* FORM_H */ 373
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