1 /**************************************************************************** 2 * Copyright (c) 1998,1999,2000 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: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 31 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 32 ****************************************************************************/ 33 34 35 /* 36 * $Id: curses.priv.h,v 1.168 2000/10/08 01:24:59 tom Exp $ 37 * 38 * curses.priv.h 39 * 40 * Header file for curses library objects which are private to 41 * the library. 42 * 43 */ 44 45 #ifndef CURSES_PRIV_H 46 #define CURSES_PRIV_H 1 47 48 #ifdef __cplusplus 49 extern "C" { 50 #endif 51 52 #include <ncurses_cfg.h> 53 54 #if USE_RCS_IDS 55 #define MODULE_ID(id) static const char Ident[] = id; 56 #else 57 #define MODULE_ID(id) /*nothing*/ 58 #endif 59 60 #include <stdlib.h> 61 #include <string.h> 62 #include <sys/types.h> 63 64 #if HAVE_UNISTD_H 65 #include <unistd.h> 66 #endif 67 68 #if HAVE_SYS_BSDTYPES_H 69 #include <sys/bsdtypes.h> /* needed for ISC */ 70 #endif 71 72 #if HAVE_LIMITS_H 73 # include <limits.h> 74 #elif HAVE_SYS_PARAM_H 75 # include <sys/param.h> 76 #endif 77 78 #ifndef PATH_MAX 79 # if defined(_POSIX_PATH_MAX) 80 # define PATH_MAX _POSIX_PATH_MAX 81 # elif defined(MAXPATHLEN) 82 # define PATH_MAX MAXPATHLEN 83 # else 84 # define PATH_MAX 255 /* the Posix minimum path-size */ 85 # endif 86 #endif 87 88 #include <assert.h> 89 #include <stdio.h> 90 91 #include <errno.h> 92 93 #if DECL_ERRNO 94 extern int errno; 95 #endif 96 97 #include <nc_panel.h> 98 99 /* Some systems have a broken 'select()', but workable 'poll()'. Use that */ 100 #if HAVE_WORKING_POLL 101 #define USE_FUNC_POLL 1 102 #if HAVE_POLL_H 103 #include <poll.h> 104 #else 105 #include <sys/poll.h> 106 #endif 107 #else 108 #define USE_FUNC_POLL 0 109 #endif 110 111 /* Alessandro Rubini's GPM (general-purpose mouse) */ 112 #if HAVE_LIBGPM && HAVE_GPM_H 113 #define USE_GPM_SUPPORT 1 114 #else 115 #define USE_GPM_SUPPORT 0 116 #endif 117 118 /* QNX mouse support */ 119 #if defined(__QNX__) && !defined(__QNXNTO__) 120 #define USE_QNX_MOUSE 1 121 #else 122 #define USE_QNX_MOUSE 0 123 #endif 124 125 /* EMX mouse support */ 126 #ifdef __EMX__ 127 #define USE_EMX_MOUSE 128 #endif 129 130 #define DEFAULT_MAXCLICK 166 131 #define EV_MAX 8 /* size of mouse circular event queue */ 132 133 /* 134 * If we don't have signals to support it, don't add a sigwinch handler. 135 * In any case, resizing is an extended feature. Use it if we've got it. 136 */ 137 #if !NCURSES_EXT_FUNCS 138 #undef HAVE_SIZECHANGE 139 #endif 140 141 #if HAVE_SIZECHANGE 142 #define USE_SIZECHANGE 1 143 #else 144 #undef USE_SIGWINCH 145 #endif 146 147 /* 148 * If desired, one can configure this, disabling environment variables that 149 * point to custom terminfo/termcap locations. 150 */ 151 #ifdef USE_ROOT_ENVIRON 152 #define use_terminfo_vars() 1 153 #else 154 #define use_terminfo_vars() _nc_env_access() 155 extern int _nc_env_access(void); 156 #endif 157 158 /* 159 * Not all platforms have memmove; some have an equivalent bcopy. (Some may 160 * have neither). 161 */ 162 #if USE_OK_BCOPY 163 #define memmove(d,s,n) bcopy(s,d,n) 164 #elif USE_MY_MEMMOVE 165 #define memmove(d,s,n) _nc_memmove(d,s,n) 166 extern void * _nc_memmove(void *, const void *, size_t); 167 #endif 168 169 /* 170 * Scroll hints are useless when hashmap is used 171 */ 172 #if !USE_SCROLL_HINTS 173 #if !USE_HASHMAP 174 #define USE_SCROLL_HINTS 1 175 #else 176 #define USE_SCROLL_HINTS 0 177 #endif 178 #endif 179 180 #if USE_SCROLL_HINTS 181 #define if_USE_SCROLL_HINTS(stmt) stmt 182 #else 183 #define if_USE_SCROLL_HINTS(stmt) /*nothing*/ 184 #endif 185 186 /* 187 * Note: ht/cbt expansion flakes out randomly under Linux 1.1.47, but only 188 * when we're throwing control codes at the screen at high volume. To see 189 * this, re-enable USE_HARD_TABS and run worm for a while. Other systems 190 * probably don't want to define this either due to uncertainties about tab 191 * delays and expansion in raw mode. 192 */ 193 194 struct tries { 195 struct tries *child; /* ptr to child. NULL if none */ 196 struct tries *sibling; /* ptr to sibling. NULL if none */ 197 unsigned char ch; /* character at this node */ 198 unsigned short value; /* code of string so far. 0 if none. */ 199 }; 200 201 /* 202 * Definitions for color pairs 203 */ 204 #define C_SHIFT 8 /* we need more bits than there are colors */ 205 #define C_MASK ((1 << C_SHIFT) - 1) 206 207 #define PAIR_OF(fg, bg) ((((fg) & C_MASK) << C_SHIFT) | ((bg) & C_MASK)) 208 209 /* 210 * Common/troublesome character definitions 211 */ 212 #define L_BRACE '{' 213 #define R_BRACE '}' 214 #define S_QUOTE '\'' 215 216 /* 217 * Structure for palette tables 218 */ 219 220 typedef struct 221 { 222 short red, green, blue; 223 } 224 color_t; 225 226 #define MAXCOLUMNS 135 227 #define MAXLINES 66 228 #define FIFO_SIZE MAXCOLUMNS+2 /* for nocbreak mode input */ 229 230 #define ACS_LEN 128 231 232 #define WINDOWLIST struct _win_list 233 234 #include <curses.h> /* we'll use -Ipath directive to get the right one! */ 235 236 /* 237 * Structure for soft labels. 238 */ 239 240 typedef struct 241 { 242 char *text; /* text for the label */ 243 char *form_text; /* formatted text (left/center/...) */ 244 int x; /* x coordinate of this field */ 245 char dirty; /* this label has changed */ 246 char visible; /* field is visible */ 247 } slk_ent; 248 249 typedef struct { 250 char dirty; /* all labels have changed */ 251 char hidden; /* soft labels are hidden */ 252 struct _win_st *win; 253 slk_ent *ent; 254 char* buffer; /* buffer for labels */ 255 short maxlab; /* number of available labels */ 256 short labcnt; /* number of allocated labels */ 257 short maxlen; /* length of labels */ 258 chtype attr; /* soft label attribute */ 259 } SLK; 260 261 struct screen { 262 int _ifd; /* input file ptr for screen */ 263 FILE *_ofp; /* output file ptr for screen */ 264 char *_setbuf; /* buffered I/O for output */ 265 int _buffered; /* setvbuf uses _setbuf data */ 266 int _checkfd; /* filedesc for typeahead check */ 267 struct term *_term; /* terminal type information */ 268 short _lines; /* screen lines */ 269 short _columns; /* screen columns */ 270 short _lines_avail; /* lines available for stdscr */ 271 short _topstolen; /* lines stolen from top */ 272 273 WINDOW *_curscr; /* current screen */ 274 WINDOW *_newscr; /* virtual screen to be updated to */ 275 WINDOW *_stdscr; /* screen's full-window context */ 276 277 struct tries *_keytry; /* "Try" for use with keypad mode */ 278 struct tries *_key_ok; /* Disabled keys via keyok(,FALSE) */ 279 int _tried; /* keypad mode was initialized */ 280 281 unsigned int _fifo[FIFO_SIZE]; /* input push-back buffer */ 282 short _fifohead, /* head of fifo queue */ 283 _fifotail, /* tail of fifo queue */ 284 _fifopeek, /* where to peek for next char */ 285 _fifohold; /* set if breakout marked */ 286 287 int _endwin; /* are we out of window mode? */ 288 unsigned long _current_attr; /* terminal attribute current set */ 289 int _coloron; /* is color enabled? */ 290 int _cursor; /* visibility of the cursor */ 291 int _cursrow; /* physical cursor row */ 292 int _curscol; /* physical cursor column */ 293 int _nl; /* True if NL -> CR/NL is on */ 294 int _raw; /* True if in raw mode */ 295 int _cbreak; /* 1 if in cbreak mode */ 296 /* > 1 if in halfdelay mode */ 297 int _echo; /* True if echo on */ 298 int _use_meta; /* use the meta key? */ 299 SLK *_slk; /* ptr to soft key struct / NULL */ 300 int slk_format; /* selected format for this screen */ 301 /* cursor movement costs; units are 10ths of milliseconds */ 302 #if NCURSES_NO_PADDING 303 int _no_padding; /* flag to set if padding disabled */ 304 #endif 305 int _char_padding; /* cost of character put */ 306 int _cr_cost; /* cost of (carriage_return) */ 307 int _cup_cost; /* cost of (cursor_address) */ 308 int _home_cost; /* cost of (cursor_home) */ 309 int _ll_cost; /* cost of (cursor_to_ll) */ 310 #if USE_HARD_TABS 311 int _ht_cost; /* cost of (tab) */ 312 int _cbt_cost; /* cost of (backtab) */ 313 #endif /* USE_HARD_TABS */ 314 int _cub1_cost; /* cost of (cursor_left) */ 315 int _cuf1_cost; /* cost of (cursor_right) */ 316 int _cud1_cost; /* cost of (cursor_down) */ 317 int _cuu1_cost; /* cost of (cursor_up) */ 318 int _cub_cost; /* cost of (parm_cursor_left) */ 319 int _cuf_cost; /* cost of (parm_cursor_right) */ 320 int _cud_cost; /* cost of (parm_cursor_down) */ 321 int _cuu_cost; /* cost of (parm_cursor_up) */ 322 int _hpa_cost; /* cost of (column_address) */ 323 int _vpa_cost; /* cost of (row_address) */ 324 /* used in tty_update.c, must be chars */ 325 int _ed_cost; /* cost of (clr_eos) */ 326 int _el_cost; /* cost of (clr_eol) */ 327 int _el1_cost; /* cost of (clr_bol) */ 328 int _dch1_cost; /* cost of (delete_character) */ 329 int _ich1_cost; /* cost of (insert_character) */ 330 int _dch_cost; /* cost of (parm_dch) */ 331 int _ich_cost; /* cost of (parm_ich) */ 332 int _ech_cost; /* cost of (erase_chars) */ 333 int _rep_cost; /* cost of (repeat_char) */ 334 int _hpa_ch_cost; /* cost of (column_address) */ 335 int _cup_ch_cost; /* cost of (cursor_address) */ 336 int _cuf_ch_cost; /* cost of (parm_cursor_right) */ 337 int _inline_cost; /* cost of inline-move */ 338 int _smir_cost; /* cost of (enter_insert_mode) */ 339 int _rmir_cost; /* cost of (exit_insert_mode) */ 340 int _ip_cost; /* cost of (insert_padding) */ 341 /* used in lib_mvcur.c */ 342 char * _address_cursor; 343 /* used in tty_update.c */ 344 int _scrolling; /* 1 if terminal's smart enough to */ 345 346 /* used in lib_color.c */ 347 color_t *_color_table; /* screen's color palette */ 348 int _color_count; /* count of colors in palette */ 349 unsigned short *_color_pairs; /* screen's color pair list */ 350 int _pair_count; /* count of color pairs */ 351 #if NCURSES_EXT_FUNCS 352 bool _default_color; /* use default colors */ 353 bool _has_sgr_39_49; /* has ECMA default color support */ 354 int _default_fg; /* assumed default foreground */ 355 int _default_bg; /* assumed default background */ 356 #endif 357 chtype _xmc_suppress; /* attributes to suppress if xmc */ 358 chtype _xmc_triggers; /* attributes to process if xmc */ 359 chtype _acs_map[ACS_LEN]; 360 361 /* used in lib_vidattr.c */ 362 bool _use_rmso; /* true if we may use 'rmso' */ 363 bool _use_rmul; /* true if we may use 'rmul' */ 364 365 /* 366 * These data correspond to the state of the idcok() and idlok() 367 * functions. A caveat is in order here: the XSI and SVr4 368 * documentation specify that these functions apply to the window which 369 * is given as an argument. However, ncurses implements this logic 370 * only for the newscr/curscr update process, _not_ per-window. 371 */ 372 bool _nc_sp_idlok; 373 bool _nc_sp_idcok; 374 #define _nc_idlok SP->_nc_sp_idlok 375 #define _nc_idcok SP->_nc_sp_idcok 376 377 /* 378 * These are the data that support the mouse interface. 379 */ 380 int _maxclick; 381 bool (*_mouse_event) (SCREEN *); 382 bool (*_mouse_inline)(SCREEN *); 383 bool (*_mouse_parse) (int); 384 void (*_mouse_resume)(SCREEN *); 385 void (*_mouse_wrap) (SCREEN *); 386 int _mouse_fd; /* file-descriptor, if any */ 387 388 /* 389 * This supports automatic resizing 390 */ 391 #if USE_SIZECHANGE 392 int (*_resize)(int,int); 393 #endif 394 395 /* 396 * These are data that support the proper handling of the panel stack on an 397 * per screen basis. 398 */ 399 struct panelhook _panelHook; 400 /* 401 * Linked-list of all windows, to support '_nc_resizeall()' and 402 * '_nc_freeall()' 403 */ 404 WINDOWLIST *_nc_sp_windows; 405 #define _nc_windows SP->_nc_sp_windows 406 407 bool _sig_winch; 408 SCREEN *_next_screen; 409 410 /* hashes for old and new lines */ 411 unsigned long *oldhash, *newhash; 412 413 bool _cleanup; /* cleanup after int/quit signal */ 414 int (*_outch)(int); /* output handler if not putc */ 415 }; 416 417 extern SCREEN *_nc_screen_chain; 418 419 #if NCURSES_NOMACROS 420 #include <nomacros.h> 421 #endif 422 423 WINDOWLIST { 424 WINDOWLIST *next; 425 WINDOW *win; 426 }; 427 428 typedef struct { 429 int line; /* lines to take, < 0 => from bottom*/ 430 int (*hook)(struct _win_st *, int); /* callback for user */ 431 struct _win_st *w; /* maybe we need this for cleanup */ 432 } ripoff_t; 433 434 /* The terminfo source is assumed to be 7-bit ASCII */ 435 #define is7bits(c) ((unsigned)(c) < 128) 436 437 #ifndef min 438 #define min(a,b) ((a) > (b) ? (b) : (a)) 439 #endif 440 441 #ifndef max 442 #define max(a,b) ((a) < (b) ? (b) : (a)) 443 #endif 444 445 /* usually in <unistd.h> */ 446 #ifndef STDIN_FILENO 447 #define STDIN_FILENO 0 448 #endif 449 450 #ifndef STDOUT_FILENO 451 #define STDOUT_FILENO 1 452 #endif 453 454 #ifndef STDERR_FILENO 455 #define STDERR_FILENO 2 456 #endif 457 458 #ifndef EXIT_SUCCESS 459 #define EXIT_SUCCESS 0 460 #endif 461 462 #ifndef EXIT_FAILURE 463 #define EXIT_FAILURE 1 464 #endif 465 466 #ifndef R_OK 467 #define R_OK 4 /* Test for read permission. */ 468 #endif 469 #ifndef W_OK 470 #define W_OK 2 /* Test for write permission. */ 471 #endif 472 #ifndef X_OK 473 #define X_OK 1 /* Test for execute permission. */ 474 #endif 475 #ifndef F_OK 476 #define F_OK 0 /* Test for existence. */ 477 #endif 478 479 #if HAVE_FCNTL_H 480 #include <fcntl.h> /* may define O_BINARY */ 481 #endif 482 483 #ifndef O_BINARY 484 #define O_BINARY 0 485 #endif 486 487 #define TextOf(c) ((c) & (chtype)A_CHARTEXT) 488 #define AttrOf(c) ((c) & (chtype)A_ATTRIBUTES) 489 490 #define BLANK (' '|A_NORMAL) 491 492 #define CHANGED -1 493 494 #define CHANGED_CELL(line,col) \ 495 if (line->firstchar == _NOCHANGE) \ 496 line->firstchar = line->lastchar = col; \ 497 else if ((col) < line->firstchar) \ 498 line->firstchar = col; \ 499 else if ((col) > line->lastchar) \ 500 line->lastchar = col 501 502 #define CHANGED_RANGE(line,start,end) \ 503 if (line->firstchar == _NOCHANGE \ 504 || line->firstchar > (start)) \ 505 line->firstchar = start; \ 506 if (line->lastchar == _NOCHANGE \ 507 || line->lastchar < (end)) \ 508 line->lastchar = end 509 510 #define CHANGED_TO_EOL(line,start,end) \ 511 if (line->firstchar == _NOCHANGE \ 512 || line->firstchar > (start)) \ 513 line->firstchar = start; \ 514 line->lastchar = end 515 516 #define SIZEOF(v) (sizeof(v)/sizeof(v[0])) 517 518 #define FreeIfNeeded(p) if ((p) != 0) free(p) 519 520 /* FreeAndNull() is not a comma-separated expression because some compilers 521 * do not accept a mixture of void with values. 522 */ 523 #define FreeAndNull(p) free(p); p = 0 524 525 #include <nc_alloc.h> 526 527 /* 528 * Prefixes for call/return points of library function traces. We use these to 529 * instrument the public functions so that the traces can be easily transformed 530 * into regression scripts. 531 */ 532 #define T_CALLED(fmt) "called " fmt 533 #define T_CREATE(fmt) "create " fmt 534 #define T_RETURN(fmt) "return " fmt 535 536 #ifdef TRACE 537 #define TR(n, a) if (_nc_tracing & (n)) _tracef a 538 #define T(a) TR(TRACE_CALLS, a) 539 #define TPUTS_TRACE(s) _nc_tputs_trace = s; 540 #define TRACE_RETURN(value,type) return _nc_retrace_##type(value) 541 #define returnAttr(code) TRACE_RETURN(code,attr_t) 542 #define returnChar(code) TRACE_RETURN(code,chtype) 543 #define returnCode(code) TRACE_RETURN(code,int) 544 #define returnPtr(code) TRACE_RETURN(code,ptr) 545 #define returnVoid T((T_RETURN(""))); return 546 #define returnWin(code) TRACE_RETURN(code,win) 547 extern WINDOW * _nc_retrace_win(WINDOW *); 548 extern attr_t _nc_retrace_attr_t(attr_t); 549 extern attr_t _nc_retrace_chtype(chtype); 550 extern char *_nc_retrace_ptr(char *); 551 extern const char *_nc_tputs_trace; 552 extern int _nc_retrace_int(int); 553 extern long _nc_outchars; 554 extern void _nc_fifo_dump(void); 555 #else 556 #define T(a) 557 #define TR(n, a) 558 #define TPUTS_TRACE(s) 559 #define returnAttr(code) return code 560 #define returnChar(code) return code 561 #define returnCode(code) return code 562 #define returnPtr(code) return code 563 #define returnVoid return 564 #define returnWin(code) return code 565 #endif 566 567 extern unsigned _nc_tracing; 568 extern const char *_nc_visbuf2(int, const char *); 569 570 #define _trace_key(ch) ((ch > KEY_MIN) ? keyname(ch) : _tracechar((unsigned char)ch)) 571 572 #define ALL_BUT_COLOR ((chtype)~(A_COLOR)) 573 #define IGNORE_COLOR_OFF FALSE 574 #define NONBLANK_ATTR (A_BOLD|A_DIM|A_BLINK) 575 #define XMC_CHANGES(c) ((c) & SP->_xmc_suppress) 576 577 578 #define toggle_attr_on(S,at) {\ 579 if (PAIR_NUMBER(at) > 0)\ 580 (S) = ((S) & ALL_BUT_COLOR) | (at);\ 581 else\ 582 (S) |= (at);\ 583 TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));} 584 585 586 #define toggle_attr_off(S,at) {\ 587 if (IGNORE_COLOR_OFF == TRUE) {\ 588 if (PAIR_NUMBER(at) == 0xff) /* turn off color */\ 589 (S) &= ~(at);\ 590 else /* leave color alone */\ 591 (S) &= ~((at)&ALL_BUT_COLOR);\ 592 } else {\ 593 if (PAIR_NUMBER(at) > 0x00) /* turn off color */\ 594 (S) &= ~(at|A_COLOR);\ 595 else /* leave color alone */\ 596 (S) &= ~(at);\ 597 }\ 598 TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));} 599 600 #define DelCharCost(count) \ 601 ((parm_dch != 0) \ 602 ? SP->_dch_cost \ 603 : ((delete_character != 0) \ 604 ? (SP->_dch1_cost * count) \ 605 : INFINITY)) 606 607 #define InsCharCost(count) \ 608 ((parm_ich != 0) \ 609 ? SP->_ich_cost \ 610 : ((enter_insert_mode && exit_insert_mode) \ 611 ? SP->_smir_cost + SP->_rmir_cost + (SP->_ip_cost * count) \ 612 : ((insert_character != 0) \ 613 ? (SP->_ich1_cost * count) \ 614 : INFINITY))) 615 616 #if USE_XMC_SUPPORT 617 #define UpdateAttrs(c) if (SP->_current_attr != AttrOf(c)) { \ 618 attr_t chg = SP->_current_attr; \ 619 vidattr(AttrOf(c)); \ 620 if (magic_cookie_glitch > 0 \ 621 && XMC_CHANGES((chg ^ SP->_current_attr))) { \ 622 TR(TRACE_ATTRS, \ 623 ("%s @%d before glitch %d,%d", \ 624 __FILE__, __LINE__, \ 625 SP->_cursrow, \ 626 SP->_curscol)); \ 627 _nc_do_xmc_glitch(chg); \ 628 } \ 629 } 630 #else 631 #define UpdateAttrs(c) if (SP->_current_attr != AttrOf(c)) \ 632 vidattr(AttrOf(c)) 633 #endif 634 635 #if NCURSES_EXPANDED && NCURSES_EXT_FUNCS 636 637 #undef toggle_attr_on 638 #define toggle_attr_on(S,at) _nc_toggle_attr_on(&(S), at) 639 extern void _nc_toggle_attr_on(attr_t *, attr_t); 640 641 #undef toggle_attr_off 642 #define toggle_attr_off(S,at) _nc_toggle_attr_off(&(S), at) 643 extern void _nc_toggle_attr_off(attr_t *, attr_t); 644 645 #undef DelCharCost 646 #define DelCharCost(count) _nc_DelCharCost(count) 647 extern int _nc_DelCharCost(int); 648 649 #undef InsCharCost 650 #define InsCharCost(count) _nc_InsCharCost(count) 651 extern int _nc_InsCharCost(int); 652 653 #undef UpdateAttrs 654 #define UpdateAttrs(c) _nc_UpdateAttrs(c) 655 extern void _nc_UpdateAttrs(chtype); 656 657 #else 658 659 extern void _nc_expanded(void); 660 661 #endif 662 663 #if !HAVE_GETCWD 664 #define getcwd(buf,len) getwd(buf) 665 #endif 666 667 /* doupdate.c */ 668 #if USE_XMC_SUPPORT 669 extern void _nc_do_xmc_glitch(attr_t); 670 #endif 671 672 /* hardscroll.c */ 673 #if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG) 674 extern void _nc_linedump(void); 675 #endif 676 677 /* lib_acs.c */ 678 extern void _nc_init_acs(void); /* corresponds to traditional 'init_acs()' */ 679 extern int _nc_msec_cost(const char *const, int); /* used by 'tack' program */ 680 681 /* lib_mvcur.c */ 682 #define INFINITY 1000000 /* cost: too high to use */ 683 684 extern void _nc_mvcur_init(void); 685 extern void _nc_mvcur_resume(void); 686 extern void _nc_mvcur_wrap(void); 687 688 extern int _nc_scrolln(int, int, int, int); 689 690 extern void _nc_screen_init(void); 691 extern void _nc_screen_resume(void); 692 extern void _nc_screen_wrap(void); 693 694 /* lib_mouse.c */ 695 extern int _nc_has_mouse(void); 696 697 /* lib_mvcur.c */ 698 #define INFINITY 1000000 /* cost: too high to use */ 699 700 typedef struct { 701 char *s_head; 702 char *s_tail; 703 size_t s_size; 704 } string_desc; 705 706 /* strings.c */ 707 extern string_desc *_nc_str_init(string_desc * dst, char *src, size_t len); 708 extern string_desc *_nc_str_null(string_desc * dst, size_t len); 709 extern string_desc *_nc_str_copy(string_desc * dst, string_desc * src); 710 extern bool _nc_safe_strcat(string_desc * dst, const char *src); 711 extern bool _nc_safe_strcpy(string_desc * dst, const char *src); 712 713 extern void _nc_mvcur_init(void); 714 extern void _nc_mvcur_resume(void); 715 extern void _nc_mvcur_wrap(void); 716 717 extern int _nc_scrolln(int, int, int, int); 718 719 extern void _nc_screen_init(void); 720 extern void _nc_screen_resume(void); 721 extern void _nc_screen_wrap(void); 722 723 #if !HAVE_STRSTR 724 #define strstr _nc_strstr 725 extern char *_nc_strstr(const char *, const char *); 726 #endif 727 728 /* safe_sprintf.c */ 729 extern char * _nc_printf_string(const char *fmt, va_list ap); 730 731 /* tries.c */ 732 extern void _nc_add_to_try(struct tries **tree, const char *str, unsigned short code); 733 extern char *_nc_expand_try(struct tries *tree, unsigned short code, int *count, size_t len); 734 extern int _nc_remove_key(struct tries **tree, unsigned short code); 735 extern int _nc_remove_string(struct tries **tree, char *string); 736 737 /* elsewhere ... */ 738 extern WINDOW *_nc_makenew(int, int, int, int, int); 739 extern char *_nc_home_terminfo(void); 740 extern char *_nc_trace_buf(int, size_t); 741 extern chtype _nc_background(WINDOW *); 742 extern chtype _nc_render(WINDOW *, chtype); 743 extern int _nc_access(const char *, int); 744 extern int _nc_baudrate(int); 745 extern int _nc_getenv_num(const char *); 746 extern int _nc_keypad(bool); 747 extern int _nc_ospeed(int); 748 extern int _nc_outch(int); 749 extern int _nc_setupscreen(short, short const, FILE *); 750 extern int _nc_timed_wait(int, int, int *); 751 extern int _nc_waddch_nosync(WINDOW *, const chtype); 752 extern void _nc_do_color(int, int, bool, int (*)(int)); 753 extern void _nc_freeall(void); 754 extern void _nc_freewin(WINDOW *win); 755 extern void _nc_hash_map(void); 756 extern void _nc_init_keytry(void); 757 extern void _nc_keep_tic_dir(const char *); 758 extern void _nc_make_oldhash(int i); 759 extern void _nc_flush(void); 760 extern void _nc_outstr(const char *str); 761 extern void _nc_scroll_oldhash(int n, int top, int bot); 762 extern void _nc_scroll_optimize(void); 763 extern void _nc_scroll_window(WINDOW *, int const, short const, short const, chtype); 764 extern void _nc_set_buffer(FILE *, bool); 765 extern void _nc_signal_handler(bool); 766 extern void _nc_synchook(WINDOW *win); 767 extern void _nc_trace_tries(struct tries *tree); 768 769 #if USE_SIZECHANGE 770 extern void _nc_update_screensize(void); 771 #endif 772 773 #if USE_WIDEC_SUPPORT 774 extern int _nc_utf8_outch(int); 775 #endif 776 777 /* scroll indices */ 778 extern int *_nc_oldnums; 779 780 #define USE_SETBUF_0 0 781 782 #define NC_BUFFERED(flag) \ 783 if ((SP->_buffered != 0) != flag) \ 784 _nc_set_buffer(SP->_ofp, flag) 785 786 #define NC_OUTPUT ((SP != 0) ? SP->_ofp : stdout) 787 788 /* 789 * On systems with a broken linker, define 'SP' as a function to force the 790 * linker to pull in the data-only module with 'SP'. 791 */ 792 #if BROKEN_LINKER 793 #define SP _nc_screen() 794 extern SCREEN *_nc_screen(void); 795 extern int _nc_alloc_screen(void); 796 extern void _nc_set_screen(SCREEN *); 797 #else 798 /* current screen is private data; avoid possible linking conflicts too */ 799 extern SCREEN *SP; 800 #define _nc_alloc_screen() ((SP = typeCalloc(SCREEN, 1)) != 0) 801 #define _nc_set_screen(sp) SP = sp 802 #endif 803 804 /* 805 * We don't want to use the lines or columns capabilities internally, 806 * because if the application is running multiple screens under 807 * X windows, it's quite possible they could all have type xterm 808 * but have different sizes! So... 809 */ 810 #define screen_lines SP->_lines 811 #define screen_columns SP->_columns 812 813 extern int _nc_slk_format; /* != 0 if slk_init() called */ 814 extern int _nc_slk_initialize(WINDOW *, int); 815 816 /* 817 * Some constants related to SLK's 818 */ 819 #define MAX_SKEY_OLD 8 /* count of soft keys */ 820 #define MAX_SKEY_LEN_OLD 8 /* max length of soft key text */ 821 #define MAX_SKEY_PC 12 /* This is what most PC's have */ 822 #define MAX_SKEY_LEN_PC 5 823 824 /* Macro to check whether or not we use a standard format */ 825 #define SLK_STDFMT(fmt) (fmt < 3) 826 /* Macro to determine height of label window */ 827 #define SLK_LINES(fmt) (SLK_STDFMT(fmt) ? 1 : ((fmt) - 2)) 828 829 #define MAX_SKEY(fmt) (SLK_STDFMT(fmt)? MAX_SKEY_OLD : MAX_SKEY_PC) 830 #define MAX_SKEY_LEN(fmt) (SLK_STDFMT(fmt)? MAX_SKEY_LEN_OLD : MAX_SKEY_LEN_PC) 831 832 extern int _nc_ripoffline(int line, int (*init)(WINDOW *,int)); 833 834 #ifdef __cplusplus 835 } 836 #endif 837 838 #endif /* CURSES_PRIV_H */ 839