1/**************************************************************************** 2 * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29/**************************************************************************** 30 * Author: Juergen Pfeifer, 1995,1997 * 31 ****************************************************************************/ 32 33/* $Id: form.h,v 0.20 2004/12/04 22:22:10 tom Exp $ */ 34 35#ifndef FORM_H 36#define FORM_H 37 38#include <curses.h> 39#include <eti.h> 40 41#ifdef __cplusplus 42 extern "C" { 43#endif 44 45#ifndef FORM_PRIV_H 46typedef void *FIELD_CELL; 47#endif 48 49#ifndef NCURSES_FIELD_INTERNALS 50#define NCURSES_FIELD_INTERNALS /* nothing */ 51#endif 52 53typedef int Form_Options; 54typedef int Field_Options; 55 56 /********** 57 * _PAGE * 58 **********/ 59 60typedef struct { 61 short pmin; /* index of first field on page */ 62 short pmax; /* index of last field on page */ 63 short smin; /* index of top leftmost field on page */ 64 short smax; /* index of bottom rightmost field on page */ 65} _PAGE; 66 67 /********** 68 * FIELD * 69 **********/ 70 71typedef struct fieldnode { 72 unsigned short status; /* flags */ 73 short rows; /* size in rows */ 74 short cols; /* size in cols */ 75 short frow; /* first row */ 76 short fcol; /* first col */ 77 int drows; /* dynamic rows */ 78 int dcols; /* dynamic cols */ 79 int maxgrow; /* maximum field growth */ 80 int nrow; /* off-screen rows */ 81 short nbuf; /* additional buffers */ 82 short just; /* justification */ 83 short page; /* page on form */ 84 short index; /* into form -> field */ 85 int pad; /* pad character */ 86 chtype fore; /* foreground attribute */ 87 chtype back; /* background attribute */ 88 Field_Options opts; /* options */ 89 struct fieldnode * snext; /* sorted order pointer */ 90 struct fieldnode * sprev; /* sorted order pointer */ 91 struct fieldnode * link; /* linked field chain */ 92 struct formnode * form; /* containing form */ 93 struct typenode * type; /* field type */ 94 void * arg; /* argument for type */ 95 FIELD_CELL * buf; /* field buffers */ 96 void * usrptr; /* user pointer */ 97 /* 98 * The wide-character configuration requires extra information. Because 99 * there are existing applications that manipulate the members of FIELD 100 * directly, we cannot make the struct opaque. Offsets of members up to 101 * this point are the same in the narrow- and wide-character configuration. 102 * But note that the type of buf depends on the configuration, and is made 103 * opaque for that reason. 104 */ 105 NCURSES_FIELD_INTERNALS 106} FIELD; 107 108 /************** 109 * FIELDTYPE * 110 **************/ 111 112typedef struct typenode { 113 unsigned short status; /* flags */ 114 long ref; /* reference count */ 115 struct typenode * left; /* ptr to operand for | */ 116 struct typenode * right; /* ptr to operand for | */ 117 118 void* (*makearg)(va_list *); /* make fieldtype arg */ 119 void* (*copyarg)(const void *); /* copy fieldtype arg */ 120 void (*freearg)(void *); /* free fieldtype arg */ 121 122 bool (*fcheck)(FIELD *,const void *); /* field validation */ 123 bool (*ccheck)(int,const void *); /* character validation */ 124 125 bool (*next)(FIELD *,const void *); /* enumerate next value */ 126 bool (*prev)(FIELD *,const void *); /* enumerate prev value */ 127 128} FIELDTYPE; 129 130 /********* 131 * FORM * 132 *********/ 133 134typedef struct formnode { 135 unsigned short status; /* flags */ 136 short rows; /* size in rows */ 137 short cols; /* size in cols */ 138 int currow; /* current row in field window */ 139 int curcol; /* current col in field window */ 140 int toprow; /* in scrollable field window */ 141 int begincol; /* in horiz. scrollable field */ 142 short maxfield; /* number of fields */ 143 short maxpage; /* number of pages */ 144 short curpage; /* index into page */ 145 Form_Options opts; /* options */ 146 WINDOW * win; /* window */ 147 WINDOW * sub; /* subwindow */ 148 WINDOW * w; /* window for current field */ 149 FIELD ** field; /* field [maxfield] */ 150 FIELD * current; /* current field */ 151 _PAGE * page; /* page [maxpage] */ 152 void * usrptr; /* user pointer */ 153 154 void (*forminit)(struct formnode *); 155 void (*formterm)(struct formnode *); 156 void (*fieldinit)(struct formnode *); 157 void (*fieldterm)(struct formnode *); 158 159} FORM; 160 161typedef void (*Form_Hook)(FORM *); 162 163 /*************************** 164 * miscellaneous #defines * 165 ***************************/ 166 167/* field justification */ 168#define NO_JUSTIFICATION (0) 169#define JUSTIFY_LEFT (1) 170#define JUSTIFY_CENTER (2) 171#define JUSTIFY_RIGHT (3) 172 173/* field options */ 174#define O_VISIBLE (0x0001U) 175#define O_ACTIVE (0x0002U) 176#define O_PUBLIC (0x0004U) 177#define O_EDIT (0x0008U) 178#define O_WRAP (0x0010U) 179#define O_BLANK (0x0020U) 180#define O_AUTOSKIP (0x0040U) 181#define O_NULLOK (0x0080U) 182#define O_PASSOK (0x0100U) 183#define O_STATIC (0x0200U) 184 185/* form options */ 186#define O_NL_OVERLOAD (0x0001U) 187#define O_BS_OVERLOAD (0x0002U) 188 189/* form driver commands */ 190#define REQ_NEXT_PAGE (KEY_MAX + 1) /* move to next page */ 191#define REQ_PREV_PAGE (KEY_MAX + 2) /* move to previous page */ 192#define REQ_FIRST_PAGE (KEY_MAX + 3) /* move to first page */ 193#define REQ_LAST_PAGE (KEY_MAX + 4) /* move to last page */ 194 195#define REQ_NEXT_FIELD (KEY_MAX + 5) /* move to next field */ 196#define REQ_PREV_FIELD (KEY_MAX + 6) /* move to previous field */ 197#define REQ_FIRST_FIELD (KEY_MAX + 7) /* move to first field */ 198#define REQ_LAST_FIELD (KEY_MAX + 8) /* move to last field */ 199#define REQ_SNEXT_FIELD (KEY_MAX + 9) /* move to sorted next field */ 200#define REQ_SPREV_FIELD (KEY_MAX + 10) /* move to sorted prev field */ 201#define REQ_SFIRST_FIELD (KEY_MAX + 11) /* move to sorted first field */ 202#define REQ_SLAST_FIELD (KEY_MAX + 12) /* move to sorted last field */ 203#define REQ_LEFT_FIELD (KEY_MAX + 13) /* move to left to field */ 204#define REQ_RIGHT_FIELD (KEY_MAX + 14) /* move to right to field */ 205#define REQ_UP_FIELD (KEY_MAX + 15) /* move to up to field */ 206#define REQ_DOWN_FIELD (KEY_MAX + 16) /* move to down to field */ 207 208#define REQ_NEXT_CHAR (KEY_MAX + 17) /* move to next char in field */ 209#define REQ_PREV_CHAR (KEY_MAX + 18) /* move to prev char in field */ 210#define REQ_NEXT_LINE (KEY_MAX + 19) /* move to next line in field */ 211#define REQ_PREV_LINE (KEY_MAX + 20) /* move to prev line in field */ 212#define REQ_NEXT_WORD (KEY_MAX + 21) /* move to next word in field */ 213#define REQ_PREV_WORD (KEY_MAX + 22) /* move to prev word in field */ 214#define REQ_BEG_FIELD (KEY_MAX + 23) /* move to first char in field */ 215#define REQ_END_FIELD (KEY_MAX + 24) /* move after last char in fld */ 216#define REQ_BEG_LINE (KEY_MAX + 25) /* move to beginning of line */ 217#define REQ_END_LINE (KEY_MAX + 26) /* move after last char in line */ 218#define REQ_LEFT_CHAR (KEY_MAX + 27) /* move left in field */ 219#define REQ_RIGHT_CHAR (KEY_MAX + 28) /* move right in field */ 220#define REQ_UP_CHAR (KEY_MAX + 29) /* move up in field */ 221#define REQ_DOWN_CHAR (KEY_MAX + 30) /* move down in field */ 222 223#define REQ_NEW_LINE (KEY_MAX + 31) /* insert/overlay new line */ 224#define REQ_INS_CHAR (KEY_MAX + 32) /* insert blank char at cursor */ 225#define REQ_INS_LINE (KEY_MAX + 33) /* insert blank line at cursor */ 226#define REQ_DEL_CHAR (KEY_MAX + 34) /* delete char at cursor */ 227#define REQ_DEL_PREV (KEY_MAX + 35) /* delete char before cursor */ 228#define REQ_DEL_LINE (KEY_MAX + 36) /* delete line at cursor */ 229#define REQ_DEL_WORD (KEY_MAX + 37) /* delete word at cursor */ 230#define REQ_CLR_EOL (KEY_MAX + 38) /* clear to end of line */ 231#define REQ_CLR_EOF (KEY_MAX + 39) /* clear to end of field */ 232#define REQ_CLR_FIELD (KEY_MAX + 40) /* clear entire field */ 233#define REQ_OVL_MODE (KEY_MAX + 41) /* begin overlay mode */ 234#define REQ_INS_MODE (KEY_MAX + 42) /* begin insert mode */ 235#define REQ_SCR_FLINE (KEY_MAX + 43) /* scroll field forward a line */ 236#define REQ_SCR_BLINE (KEY_MAX + 44) /* scroll field backward a line */ 237#define REQ_SCR_FPAGE (KEY_MAX + 45) /* scroll field forward a page */ 238#define REQ_SCR_BPAGE (KEY_MAX + 46) /* scroll field backward a page */ 239#define REQ_SCR_FHPAGE (KEY_MAX + 47) /* scroll field forward half page */ 240#define REQ_SCR_BHPAGE (KEY_MAX + 48) /* scroll field backward half page */ 241#define REQ_SCR_FCHAR (KEY_MAX + 49) /* horizontal scroll char */ 242#define REQ_SCR_BCHAR (KEY_MAX + 50) /* horizontal scroll char */ 243#define REQ_SCR_HFLINE (KEY_MAX + 51) /* horizontal scroll line */ 244#define REQ_SCR_HBLINE (KEY_MAX + 52) /* horizontal scroll line */ 245#define REQ_SCR_HFHALF (KEY_MAX + 53) /* horizontal scroll half line */ 246#define REQ_SCR_HBHALF (KEY_MAX + 54) /* horizontal scroll half line */ 247 248#define REQ_VALIDATION (KEY_MAX + 55) /* validate field */ 249#define REQ_NEXT_CHOICE (KEY_MAX + 56) /* display next field choice */ 250#define REQ_PREV_CHOICE (KEY_MAX + 57) /* display prev field choice */ 251 252#define MIN_FORM_COMMAND (KEY_MAX + 1) /* used by form_driver */ 253#define MAX_FORM_COMMAND (KEY_MAX + 57) /* used by form_driver */ 254 255#if defined(MAX_COMMAND) 256# if (MAX_FORM_COMMAND > MAX_COMMAND) 257# error Something is wrong -- MAX_FORM_COMMAND is greater than MAX_COMMAND 258# elif (MAX_COMMAND != (KEY_MAX + 128)) 259# error Something is wrong -- MAX_COMMAND is already inconsistently defined. 260# endif 261#else 262# define MAX_COMMAND (KEY_MAX + 128) 263#endif 264 265 /************************* 266 * standard field types * 267 *************************/ 268extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_ALPHA; 269extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_ALNUM; 270extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_ENUM; 271extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_INTEGER; 272extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_NUMERIC; 273extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_REGEXP; 274 275 /************************************ 276 * built-in additional field types * 277 * They are not defined in SVr4 * 278 ************************************/ 279extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_IPV4; /* Internet IP Version 4 address */ 280 281 /*********************** 282 * Default objects * 283 ***********************/ 284extern NCURSES_EXPORT_VAR(FORM *) _nc_Default_Form; 285extern NCURSES_EXPORT_VAR(FIELD *) _nc_Default_Field; 286 287 288 /*********************** 289 * FIELDTYPE routines * 290 ***********************/ 291extern NCURSES_EXPORT(FIELDTYPE *) new_fieldtype ( 292 bool (* const field_check)(FIELD *,const void *), 293 bool (* const char_check)(int,const void *)); 294extern NCURSES_EXPORT(FIELDTYPE *) link_fieldtype( 295 FIELDTYPE *, FIELDTYPE *); 296 297extern NCURSES_EXPORT(int) free_fieldtype (FIELDTYPE *); 298extern NCURSES_EXPORT(int) set_fieldtype_arg (FIELDTYPE *, 299 void * (* const make_arg)(va_list *), 300 void * (* const copy_arg)(const void *), 301 void (* const free_arg)(void *)); 302extern NCURSES_EXPORT(int) set_fieldtype_choice (FIELDTYPE *, 303 bool (* const next_choice)(FIELD *,const void *), 304 bool (* const prev_choice)(FIELD *,const void *)); 305 306 /******************* 307 * FIELD routines * 308 *******************/ 309extern NCURSES_EXPORT(FIELD *) new_field (int,int,int,int,int,int); 310extern NCURSES_EXPORT(FIELD *) dup_field (FIELD *,int,int); 311extern NCURSES_EXPORT(FIELD *) link_field (FIELD *,int,int); 312 313extern NCURSES_EXPORT(int) free_field (FIELD *); 314extern NCURSES_EXPORT(int) field_info (const FIELD *,int *,int *,int *,int *,int *,int *); 315extern NCURSES_EXPORT(int) dynamic_field_info (const FIELD *,int *,int *,int *); 316extern NCURSES_EXPORT(int) set_max_field ( FIELD *,int); 317extern NCURSES_EXPORT(int) move_field (FIELD *,int,int); 318extern NCURSES_EXPORT(int) set_field_type (FIELD *,FIELDTYPE *,...); 319extern NCURSES_EXPORT(int) set_new_page (FIELD *,bool); 320extern NCURSES_EXPORT(int) set_field_just (FIELD *,int); 321extern NCURSES_EXPORT(int) field_just (const FIELD *); 322extern NCURSES_EXPORT(int) set_field_fore (FIELD *,chtype); 323extern NCURSES_EXPORT(int) set_field_back (FIELD *,chtype); 324extern NCURSES_EXPORT(int) set_field_pad (FIELD *,int); 325extern NCURSES_EXPORT(int) field_pad (const FIELD *); 326extern NCURSES_EXPORT(int) set_field_buffer (FIELD *,int,const char *); 327extern NCURSES_EXPORT(int) set_field_status (FIELD *,bool); 328extern NCURSES_EXPORT(int) set_field_userptr (FIELD *, void *); 329extern NCURSES_EXPORT(int) set_field_opts (FIELD *,Field_Options); 330extern NCURSES_EXPORT(int) field_opts_on (FIELD *,Field_Options); 331extern NCURSES_EXPORT(int) field_opts_off (FIELD *,Field_Options); 332 333extern NCURSES_EXPORT(chtype) field_fore (const FIELD *); 334extern NCURSES_EXPORT(chtype) field_back (const FIELD *); 335 336extern NCURSES_EXPORT(bool) new_page (const FIELD *); 337extern NCURSES_EXPORT(bool) field_status (const FIELD *); 338 339extern NCURSES_EXPORT(void *) field_arg (const FIELD *); 340 341extern NCURSES_EXPORT(void *) field_userptr (const FIELD *); 342 343extern NCURSES_EXPORT(FIELDTYPE *) field_type (const FIELD *); 344 345extern NCURSES_EXPORT(char *) field_buffer (const FIELD *,int); 346 347extern NCURSES_EXPORT(Field_Options) field_opts (const FIELD *); 348 349 /****************** 350 * FORM routines * 351 ******************/ 352 353extern NCURSES_EXPORT(FORM *) new_form (FIELD **); 354 355extern NCURSES_EXPORT(FIELD **) form_fields (const FORM *); 356extern NCURSES_EXPORT(FIELD *) current_field (const FORM *); 357 358extern NCURSES_EXPORT(WINDOW *) form_win (const FORM *); 359extern NCURSES_EXPORT(WINDOW *) form_sub (const FORM *); 360 361extern NCURSES_EXPORT(Form_Hook) form_init (const FORM *); 362extern NCURSES_EXPORT(Form_Hook) form_term (const FORM *); 363extern NCURSES_EXPORT(Form_Hook) field_init (const FORM *); 364extern NCURSES_EXPORT(Form_Hook) field_term (const FORM *); 365 366extern NCURSES_EXPORT(int) free_form (FORM *); 367extern NCURSES_EXPORT(int) set_form_fields (FORM *,FIELD **); 368extern NCURSES_EXPORT(int) field_count (const FORM *); 369extern NCURSES_EXPORT(int) set_form_win (FORM *,WINDOW *); 370extern NCURSES_EXPORT(int) set_form_sub (FORM *,WINDOW *); 371extern NCURSES_EXPORT(int) set_current_field (FORM *,FIELD *); 372extern NCURSES_EXPORT(int) field_index (const FIELD *); 373extern NCURSES_EXPORT(int) set_form_page (FORM *,int); 374extern NCURSES_EXPORT(int) form_page (const FORM *); 375extern NCURSES_EXPORT(int) scale_form (const FORM *,int *,int *); 376extern NCURSES_EXPORT(int) set_form_init (FORM *,Form_Hook); 377extern NCURSES_EXPORT(int) set_form_term (FORM *,Form_Hook); 378extern NCURSES_EXPORT(int) set_field_init (FORM *,Form_Hook); 379extern NCURSES_EXPORT(int) set_field_term (FORM *,Form_Hook); 380extern NCURSES_EXPORT(int) post_form (FORM *); 381extern NCURSES_EXPORT(int) unpost_form (FORM *); 382extern NCURSES_EXPORT(int) pos_form_cursor (FORM *); 383extern NCURSES_EXPORT(int) form_driver (FORM *,int); 384extern NCURSES_EXPORT(int) set_form_userptr (FORM *,void *); 385extern NCURSES_EXPORT(int) set_form_opts (FORM *,Form_Options); 386extern NCURSES_EXPORT(int) form_opts_on (FORM *,Form_Options); 387extern NCURSES_EXPORT(int) form_opts_off (FORM *,Form_Options); 388extern NCURSES_EXPORT(int) form_request_by_name (const char *); 389 390extern NCURSES_EXPORT(const char *) form_request_name (int); 391 392extern NCURSES_EXPORT(void *) form_userptr (const FORM *); 393 394extern NCURSES_EXPORT(Form_Options) form_opts (const FORM *); 395 396extern NCURSES_EXPORT(bool) data_ahead (const FORM *); 397extern NCURSES_EXPORT(bool) data_behind (const FORM *); 398 399#ifdef __cplusplus 400 } 401#endif 402 403#endif /* FORM_H */ 404