1 /**************************************************************************** 2 * Copyright (c) 1998-2012,2013 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 * and: Thomas E. Dickey 1996-on * 33 * and: Juergen Pfeifer 2009 * 34 ****************************************************************************/ 35 36 /* 37 ** lib_set_term.c 38 ** 39 ** The routine set_term(). 40 ** 41 */ 42 43 #include <curses.priv.h> 44 #include <tic.h> 45 46 #ifndef CUR 47 #define CUR SP_TERMTYPE 48 #endif 49 50 MODULE_ID("$Id: lib_set_term.c,v 1.148 2013/08/31 13:33:06 tom Exp $") 51 52 #ifdef USE_TERM_DRIVER 53 #define MaxColors InfoOf(sp).maxcolors 54 #define NumLabels InfoOf(sp).numlabels 55 #else 56 #define MaxColors max_colors 57 #define NumLabels num_labels 58 #endif 59 60 NCURSES_EXPORT(SCREEN *) 61 set_term(SCREEN *screenp) 62 { 63 SCREEN *oldSP; 64 SCREEN *newSP; 65 66 T((T_CALLED("set_term(%p)"), (void *) screenp)); 67 68 _nc_lock_global(curses); 69 70 oldSP = CURRENT_SCREEN; 71 _nc_set_screen(screenp); 72 newSP = screenp; 73 74 if (newSP != 0) { 75 TINFO_SET_CURTERM(newSP, newSP->_term); 76 #if !USE_REENTRANT 77 curscr = CurScreen(newSP); 78 newscr = NewScreen(newSP); 79 stdscr = StdScreen(newSP); 80 COLORS = newSP->_color_count; 81 COLOR_PAIRS = newSP->_pair_count; 82 #endif 83 } else { 84 TINFO_SET_CURTERM(oldSP, 0); 85 #if !USE_REENTRANT 86 curscr = 0; 87 newscr = 0; 88 stdscr = 0; 89 COLORS = 0; 90 COLOR_PAIRS = 0; 91 #endif 92 } 93 94 _nc_unlock_global(curses); 95 96 T((T_RETURN("%p"), (void *) oldSP)); 97 return (oldSP); 98 } 99 100 static void 101 _nc_free_keytry(TRIES * kt) 102 { 103 if (kt != 0) { 104 _nc_free_keytry(kt->child); 105 _nc_free_keytry(kt->sibling); 106 free(kt); 107 } 108 } 109 110 static bool 111 delink_screen(SCREEN *sp) 112 { 113 SCREEN *last = 0; 114 SCREEN *temp; 115 bool result = FALSE; 116 117 for (each_screen(temp)) { 118 if (temp == sp) { 119 if (last) 120 last->_next_screen = sp->_next_screen; 121 else 122 _nc_screen_chain = sp->_next_screen; 123 result = TRUE; 124 break; 125 } 126 last = temp; 127 } 128 return result; 129 } 130 131 /* 132 * Free the storage associated with the given SCREEN sp. 133 */ 134 NCURSES_EXPORT(void) 135 delscreen(SCREEN *sp) 136 { 137 int i; 138 139 T((T_CALLED("delscreen(%p)"), (void *) sp)); 140 141 _nc_lock_global(curses); 142 if (delink_screen(sp)) { 143 #ifdef USE_SP_RIPOFF 144 ripoff_t *rop; 145 if (safe_ripoff_sp && safe_ripoff_sp != safe_ripoff_stack) { 146 for (rop = safe_ripoff_stack; 147 rop != safe_ripoff_sp && (rop - safe_ripoff_stack) < N_RIPS; 148 rop++) { 149 if (rop->win) { 150 (void) delwin(rop->win); 151 rop->win = 0; 152 } 153 } 154 } 155 #endif 156 157 (void) _nc_freewin(CurScreen(sp)); 158 (void) _nc_freewin(NewScreen(sp)); 159 (void) _nc_freewin(StdScreen(sp)); 160 161 if (sp->_slk != 0) { 162 if (sp->_slk->ent != 0) { 163 for (i = 0; i < sp->_slk->labcnt; ++i) { 164 FreeIfNeeded(sp->_slk->ent[i].ent_text); 165 FreeIfNeeded(sp->_slk->ent[i].form_text); 166 } 167 free(sp->_slk->ent); 168 } 169 free(sp->_slk); 170 sp->_slk = 0; 171 } 172 173 _nc_free_keytry(sp->_keytry); 174 sp->_keytry = 0; 175 176 _nc_free_keytry(sp->_key_ok); 177 sp->_key_ok = 0; 178 179 FreeIfNeeded(sp->_current_attr); 180 181 FreeIfNeeded(sp->_color_table); 182 FreeIfNeeded(sp->_color_pairs); 183 184 FreeIfNeeded(sp->oldhash); 185 FreeIfNeeded(sp->newhash); 186 FreeIfNeeded(sp->hashtab); 187 188 FreeIfNeeded(sp->_acs_map); 189 FreeIfNeeded(sp->_screen_acs_map); 190 191 NCURSES_SP_NAME(_nc_flush) (NCURSES_SP_ARG); 192 NCURSES_SP_NAME(del_curterm) (NCURSES_SP_ARGx sp->_term); 193 free(sp); 194 195 /* 196 * If this was the current screen, reset everything that the 197 * application might try to use (except cur_term, which may have 198 * multiple references in different screens). 199 */ 200 if (sp == CURRENT_SCREEN) { 201 #if !USE_REENTRANT 202 curscr = 0; 203 newscr = 0; 204 stdscr = 0; 205 COLORS = 0; 206 COLOR_PAIRS = 0; 207 #endif 208 _nc_set_screen(0); 209 } 210 } 211 _nc_unlock_global(curses); 212 213 returnVoid; 214 } 215 216 static bool 217 no_mouse_event(SCREEN *sp GCC_UNUSED) 218 { 219 return FALSE; 220 } 221 222 static bool 223 no_mouse_inline(SCREEN *sp GCC_UNUSED) 224 { 225 return FALSE; 226 } 227 228 static bool 229 no_mouse_parse(SCREEN *sp GCC_UNUSED, int code GCC_UNUSED) 230 { 231 return TRUE; 232 } 233 234 static void 235 no_mouse_resume(SCREEN *sp GCC_UNUSED) 236 { 237 } 238 239 static void 240 no_mouse_wrap(SCREEN *sp GCC_UNUSED) 241 { 242 } 243 244 #if NCURSES_EXT_FUNCS && USE_COLORFGBG 245 static char * 246 extract_fgbg(char *src, int *result) 247 { 248 char *dst = 0; 249 long value = strtol(src, &dst, 0); 250 251 if (dst == 0) { 252 dst = src; 253 } else if (value >= 0) { 254 *result = value; 255 } 256 while (*dst != 0 && *dst != ';') 257 dst++; 258 if (*dst == ';') 259 dst++; 260 return dst; 261 } 262 #endif 263 264 #define ReturnScreenError() { _nc_set_screen(0); \ 265 returnCode(ERR); } while (0) 266 267 /* OS-independent screen initializations */ 268 NCURSES_EXPORT(int) 269 NCURSES_SP_NAME(_nc_setupscreen) ( 270 #if NCURSES_SP_FUNCS 271 SCREEN **spp, 272 #endif 273 int slines, 274 int scolumns, 275 FILE *output, 276 int filtered, 277 int slk_format) 278 { 279 char *env; 280 int bottom_stolen = 0; 281 ripoff_t *rop; 282 SCREEN *sp; 283 #ifndef USE_TERM_DRIVER 284 bool support_cookies = USE_XMC_SUPPORT; 285 #endif 286 287 T((T_CALLED("_nc_setupscreen(%d, %d, %p, %d, %d)"), 288 slines, scolumns, (void *) output, filtered, slk_format)); 289 290 assert(CURRENT_SCREEN == 0); /* has been reset in newterm() ! */ 291 292 #if NCURSES_SP_FUNCS 293 assert(spp != 0); 294 sp = *spp; 295 296 if (!sp) { 297 sp = _nc_alloc_screen_sp(); 298 *spp = sp; 299 } 300 if (!sp 301 || ((sp->_acs_map = typeCalloc(chtype, ACS_LEN)) == 0) 302 || ((sp->_screen_acs_map = typeCalloc(bool, ACS_LEN)) == 0)) { 303 ReturnScreenError(); 304 } 305 306 T(("created SP %p", (void *) sp)); 307 sp->_next_screen = _nc_screen_chain; 308 _nc_screen_chain = sp; 309 310 if ((sp->_current_attr = typeCalloc(NCURSES_CH_T, 1)) == 0) { 311 ReturnScreenError(); 312 } 313 #else 314 if (!_nc_alloc_screen() 315 || ((SP->_acs_map = typeCalloc(chtype, ACS_LEN)) == 0) 316 || ((SP->_screen_acs_map = typeCalloc(bool, ACS_LEN)) == 0)) { 317 returnCode(ERR); 318 } 319 320 T(("created SP %p", (void *) SP)); 321 322 sp = SP; /* fixup so SET_LINES and SET_COLS works */ 323 sp->_next_screen = _nc_screen_chain; 324 _nc_screen_chain = sp; 325 326 if ((sp->_current_attr = typeCalloc(NCURSES_CH_T, 1)) == 0) 327 returnCode(ERR); 328 #endif 329 330 /* 331 * We should always check the screensize, just in case. 332 */ 333 _nc_set_screen(sp); 334 sp->_term = cur_term; 335 #ifdef USE_TERM_DRIVER 336 TCBOf(sp)->csp = sp; 337 _nc_get_screensize(sp, sp->_term, &slines, &scolumns); 338 #else 339 _nc_get_screensize(sp, &slines, &scolumns); 340 #endif 341 SET_LINES(slines); 342 SET_COLS(scolumns); 343 344 T((T_CREATE("screen %s %dx%d"), 345 NCURSES_SP_NAME(termname) (NCURSES_SP_ARG), slines, scolumns)); 346 347 sp->_filtered = filtered; 348 349 /* implement filter mode */ 350 if (filtered) { 351 slines = 1; 352 SET_LINES(slines); 353 #ifdef USE_TERM_DRIVER 354 CallDriver(sp, setfilter); 355 #else 356 clear_screen = 0; 357 cursor_down = parm_down_cursor = 0; 358 cursor_address = 0; 359 cursor_up = parm_up_cursor = 0; 360 row_address = 0; 361 362 cursor_home = carriage_return; 363 #endif 364 T(("filter screensize %dx%d", slines, scolumns)); 365 } 366 #ifdef __DJGPP__ 367 T(("setting output mode to binary")); 368 fflush(output); 369 setmode(output, O_BINARY); 370 #endif 371 NCURSES_SP_NAME(_nc_set_buffer) (NCURSES_SP_ARGx output, TRUE); 372 sp->_lines = (NCURSES_SIZE_T) slines; 373 sp->_lines_avail = (NCURSES_SIZE_T) slines; 374 sp->_columns = (NCURSES_SIZE_T) scolumns; 375 376 fflush(output); 377 sp->_ofd = output ? fileno(output) : -1; 378 sp->_ofp = output; 379 sp->out_limit = (size_t) ((2 + slines) * (6 + scolumns)); 380 if ((sp->out_buffer = malloc(sp->out_limit)) == 0) 381 sp->out_limit = 0; 382 sp->out_inuse = 0; 383 384 SP_PRE_INIT(sp); 385 SetNoPadding(sp); 386 387 #if NCURSES_EXT_FUNCS 388 sp->_default_color = FALSE; 389 sp->_has_sgr_39_49 = FALSE; 390 391 /* 392 * Set our assumption of the terminal's default foreground and background 393 * colors. The curs_color man-page states that we can assume that the 394 * background is black. The origin of this assumption appears to be 395 * terminals that displayed colored text, but no colored backgrounds, e.g., 396 * the first colored terminals around 1980. More recent ones with better 397 * technology can display not only colored backgrounds, but all 398 * combinations. So a terminal might be something other than "white" on 399 * black (green/black looks monochrome too), but black on white or even 400 * on ivory. 401 * 402 * White-on-black is the simplest thing to use for monochrome. Almost 403 * all applications that use color paint both text and background, so 404 * the distinction is moot. But a few do not - which is why we leave this 405 * configurable (a better solution is to use assume_default_colors() for 406 * the rare applications that do require that sort of appearance, since 407 * is appears that more users expect to be able to make a white-on-black 408 * or black-on-white display under control of the application than not). 409 */ 410 #ifdef USE_ASSUMED_COLOR 411 sp->_default_fg = COLOR_WHITE; 412 sp->_default_bg = COLOR_BLACK; 413 #else 414 sp->_default_fg = C_MASK; 415 sp->_default_bg = C_MASK; 416 #endif 417 418 /* 419 * Allow those assumed/default color assumptions to be overridden at 420 * runtime: 421 */ 422 if ((env = getenv("NCURSES_ASSUMED_COLORS")) != 0) { 423 int fg, bg; 424 char sep1, sep2; 425 int count = sscanf(env, "%d%c%d%c", &fg, &sep1, &bg, &sep2); 426 if (count >= 1) { 427 sp->_default_fg = ((fg >= 0 && fg < MaxColors) ? fg : C_MASK); 428 if (count >= 3) { 429 sp->_default_bg = ((bg >= 0 && bg < MaxColors) ? bg : C_MASK); 430 } 431 TR(TRACE_CHARPUT | TRACE_MOVE, 432 ("from environment assumed fg=%d, bg=%d", 433 sp->_default_fg, 434 sp->_default_bg)); 435 } 436 } 437 #if USE_COLORFGBG 438 /* 439 * If rxvt's $COLORFGBG variable is set, use it to specify the assumed 440 * default colors. Note that rxvt (mis)uses bold colors, equating a bold 441 * color to that value plus 8. We'll only use the non-bold color for now - 442 * decide later if it is worth having default attributes as well. 443 */ 444 if (getenv("COLORFGBG") != 0) { 445 char *p = getenv("COLORFGBG"); 446 TR(TRACE_CHARPUT | TRACE_MOVE, ("decoding COLORFGBG %s", p)); 447 p = extract_fgbg(p, &(sp->_default_fg)); 448 p = extract_fgbg(p, &(sp->_default_bg)); 449 if (*p) /* assume rxvt was compiled with xpm support */ 450 p = extract_fgbg(p, &(sp->_default_bg)); 451 TR(TRACE_CHARPUT | TRACE_MOVE, ("decoded fg=%d, bg=%d", 452 sp->_default_fg, sp->_default_bg)); 453 if (sp->_default_fg >= MaxColors) { 454 if (set_a_foreground != ABSENT_STRING 455 && !strcmp(set_a_foreground, "\033[3%p1%dm")) { 456 set_a_foreground = "\033[3%?%p1%{8}%>%t9%e%p1%d%;m"; 457 } else { 458 sp->_default_fg %= MaxColors; 459 } 460 } 461 if (sp->_default_bg >= MaxColors) { 462 if (set_a_background != ABSENT_STRING 463 && !strcmp(set_a_background, "\033[4%p1%dm")) { 464 set_a_background = "\033[4%?%p1%{8}%>%t9%e%p1%d%;m"; 465 } else { 466 sp->_default_bg %= MaxColors; 467 } 468 } 469 } 470 #endif 471 #endif /* NCURSES_EXT_FUNCS */ 472 473 sp->_maxclick = DEFAULT_MAXCLICK; 474 sp->_mouse_event = no_mouse_event; 475 sp->_mouse_inline = no_mouse_inline; 476 sp->_mouse_parse = no_mouse_parse; 477 sp->_mouse_resume = no_mouse_resume; 478 sp->_mouse_wrap = no_mouse_wrap; 479 sp->_mouse_fd = -1; 480 481 /* 482 * If we've no magic cookie support, we suppress attributes that xmc would 483 * affect, i.e., the attributes that affect the rendition of a space. 484 */ 485 sp->_ok_attributes = NCURSES_SP_NAME(termattrs) (NCURSES_SP_ARG); 486 if (NCURSES_SP_NAME(has_colors) (NCURSES_SP_ARG)) { 487 sp->_ok_attributes |= A_COLOR; 488 } 489 #ifdef USE_TERM_DRIVER 490 _nc_cookie_init(sp); 491 #else 492 #if USE_XMC_SUPPORT 493 /* 494 * If we have no magic-cookie support compiled-in, or if it is suppressed 495 * in the environment, reset the support-flag. 496 */ 497 if (magic_cookie_glitch >= 0) { 498 if (getenv("NCURSES_NO_MAGIC_COOKIE") != 0) { 499 support_cookies = FALSE; 500 } 501 } 502 #endif 503 504 if (!support_cookies && magic_cookie_glitch >= 0) { 505 T(("will disable attributes to work w/o magic cookies")); 506 } 507 508 if (magic_cookie_glitch > 0) { /* tvi, wyse */ 509 510 sp->_xmc_triggers = sp->_ok_attributes & XMC_CONFLICT; 511 #if 0 512 /* 513 * We "should" treat colors as an attribute. The wyse350 (and its 514 * clones) appear to be the only ones that have both colors and magic 515 * cookies. 516 */ 517 if (has_colors()) { 518 sp->_xmc_triggers |= A_COLOR; 519 } 520 #endif 521 sp->_xmc_suppress = sp->_xmc_triggers & (chtype) ~(A_BOLD); 522 523 T(("magic cookie attributes %s", _traceattr(sp->_xmc_suppress))); 524 /* 525 * Supporting line-drawing may be possible. But make the regular 526 * video attributes work first. 527 */ 528 acs_chars = ABSENT_STRING; 529 ena_acs = ABSENT_STRING; 530 enter_alt_charset_mode = ABSENT_STRING; 531 exit_alt_charset_mode = ABSENT_STRING; 532 #if USE_XMC_SUPPORT 533 /* 534 * To keep the cookie support simple, suppress all of the optimization 535 * hooks except for clear_screen and the cursor addressing. 536 */ 537 if (support_cookies) { 538 clr_eol = ABSENT_STRING; 539 clr_eos = ABSENT_STRING; 540 set_attributes = ABSENT_STRING; 541 } 542 #endif 543 } else if (magic_cookie_glitch == 0) { /* hpterm */ 544 } 545 546 /* 547 * If magic cookies are not supported, cancel the strings that set 548 * video attributes. 549 */ 550 if (!support_cookies && magic_cookie_glitch >= 0) { 551 magic_cookie_glitch = ABSENT_NUMERIC; 552 set_attributes = ABSENT_STRING; 553 enter_blink_mode = ABSENT_STRING; 554 enter_bold_mode = ABSENT_STRING; 555 enter_dim_mode = ABSENT_STRING; 556 enter_reverse_mode = ABSENT_STRING; 557 enter_standout_mode = ABSENT_STRING; 558 enter_underline_mode = ABSENT_STRING; 559 } 560 561 /* initialize normal acs before wide, since we use mapping in the latter */ 562 #if !USE_WIDEC_SUPPORT 563 if (_nc_unicode_locale() && _nc_locale_breaks_acs(sp->_term)) { 564 acs_chars = NULL; 565 ena_acs = NULL; 566 enter_alt_charset_mode = NULL; 567 exit_alt_charset_mode = NULL; 568 set_attributes = NULL; 569 } 570 #endif 571 #endif 572 573 NCURSES_SP_NAME(_nc_init_acs) (NCURSES_SP_ARG); 574 #if USE_WIDEC_SUPPORT 575 sp->_screen_unicode = _nc_unicode_locale(); 576 _nc_init_wacs(); 577 if (_nc_wacs == 0) { 578 ReturnScreenError(); 579 } 580 581 sp->_screen_acs_fix = (sp->_screen_unicode 582 && _nc_locale_breaks_acs(sp->_term)); 583 #endif 584 env = _nc_get_locale(); 585 sp->_legacy_coding = ((env == 0) 586 || !strcmp(env, "C") 587 || !strcmp(env, "POSIX")); 588 T(("legacy-coding %d", sp->_legacy_coding)); 589 590 sp->_nc_sp_idcok = TRUE; 591 sp->_nc_sp_idlok = FALSE; 592 593 sp->oldhash = 0; 594 sp->newhash = 0; 595 596 T(("creating newscr")); 597 NewScreen(sp) = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx slines, scolumns, 598 0, 0); 599 if (NewScreen(sp) == 0) { 600 ReturnScreenError(); 601 } 602 T(("creating curscr")); 603 CurScreen(sp) = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx slines, scolumns, 604 0, 0); 605 if (CurScreen(sp) == 0) { 606 ReturnScreenError(); 607 } 608 #if !USE_REENTRANT 609 newscr = NewScreen(sp); 610 curscr = CurScreen(sp); 611 #endif 612 #if USE_SIZECHANGE 613 sp->_resize = NCURSES_SP_NAME(resizeterm); 614 sp->_ungetch = safe_ungetch; 615 #endif 616 617 NewScreen(sp)->_clear = TRUE; 618 CurScreen(sp)->_clear = FALSE; 619 620 NCURSES_SP_NAME(def_shell_mode) (NCURSES_SP_ARG); 621 NCURSES_SP_NAME(def_prog_mode) (NCURSES_SP_ARG); 622 623 if (safe_ripoff_sp && safe_ripoff_sp != safe_ripoff_stack) { 624 for (rop = safe_ripoff_stack; 625 rop != safe_ripoff_sp && (rop - safe_ripoff_stack) < N_RIPS; 626 rop++) { 627 628 /* If we must simulate soft labels, grab off the line to be used. 629 We assume that we must simulate, if it is none of the standard 630 formats (4-4 or 3-2-3) for which there may be some hardware 631 support. */ 632 if (rop->hook == _nc_slk_initialize) { 633 if (!(NumLabels <= 0 || !SLK_STDFMT(slk_format))) { 634 continue; 635 } 636 } 637 if (rop->hook) { 638 int count; 639 WINDOW *w; 640 641 count = (rop->line < 0) ? -rop->line : rop->line; 642 T(("ripping off %i lines at %s", count, 643 ((rop->line < 0) 644 ? "bottom" 645 : "top"))); 646 647 w = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx 648 count, scolumns, 649 ((rop->line < 0) 650 ? sp->_lines_avail - count 651 : 0), 652 0); 653 if (w) { 654 rop->win = w; 655 rop->hook(w, scolumns); 656 } else { 657 ReturnScreenError(); 658 } 659 if (rop->line < 0) { 660 bottom_stolen += count; 661 } else { 662 sp->_topstolen = (NCURSES_SIZE_T) (sp->_topstolen + count); 663 } 664 sp->_lines_avail = (NCURSES_SIZE_T) (sp->_lines_avail - count); 665 } 666 } 667 /* reset the stack */ 668 safe_ripoff_sp = safe_ripoff_stack; 669 } 670 671 T(("creating stdscr")); 672 assert((sp->_lines_avail + sp->_topstolen + bottom_stolen) == slines); 673 if ((StdScreen(sp) = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx 674 sp->_lines_avail, 675 scolumns, 0, 0)) == 0) { 676 ReturnScreenError(); 677 } 678 SET_LINES(sp->_lines_avail); 679 #if !USE_REENTRANT 680 stdscr = StdScreen(sp); 681 #endif 682 sp->_prescreen = FALSE; 683 returnCode(OK); 684 } 685 686 #if NCURSES_SP_FUNCS 687 NCURSES_EXPORT(int) 688 _nc_setupscreen(int slines GCC_UNUSED, 689 int scolumns GCC_UNUSED, 690 FILE *output, 691 int filtered, 692 int slk_format) 693 { 694 SCREEN *sp = 0; 695 int rc = NCURSES_SP_NAME(_nc_setupscreen) (&sp, 696 slines, 697 scolumns, 698 output, 699 filtered, 700 slk_format); 701 if (rc != OK) 702 _nc_set_screen(0); 703 return rc; 704 } 705 #endif 706 707 /* 708 * The internal implementation interprets line as the number of lines to rip 709 * off from the top or bottom. 710 */ 711 NCURSES_EXPORT(int) 712 NCURSES_SP_NAME(_nc_ripoffline) (NCURSES_SP_DCLx 713 int line, 714 int (*init) (WINDOW *, int)) 715 { 716 int code = ERR; 717 718 START_TRACE(); 719 T((T_CALLED("ripoffline(%p,%d,%p)"), (void *) SP_PARM, line, init)); 720 721 #if NCURSES_SP_FUNCS 722 if (SP_PARM != 0 && SP_PARM->_prescreen) 723 #endif 724 { 725 if (line == 0) { 726 code = OK; 727 } else { 728 if (safe_ripoff_sp == 0) 729 safe_ripoff_sp = safe_ripoff_stack; 730 if (safe_ripoff_sp < safe_ripoff_stack + N_RIPS) { 731 safe_ripoff_sp->line = line; 732 safe_ripoff_sp->hook = init; 733 (safe_ripoff_sp)++; 734 code = OK; 735 } 736 } 737 } 738 739 returnCode(code); 740 } 741 742 #if NCURSES_SP_FUNCS 743 NCURSES_EXPORT(int) 744 _nc_ripoffline(int line, int (*init) (WINDOW *, int)) 745 { 746 return NCURSES_SP_NAME(_nc_ripoffline) (CURRENT_SCREEN_PRE, line, init); 747 } 748 #endif 749 750 NCURSES_EXPORT(int) 751 NCURSES_SP_NAME(ripoffline) (NCURSES_SP_DCLx 752 int line, 753 int (*init) (WINDOW *, int)) 754 { 755 START_TRACE(); 756 return NCURSES_SP_NAME(_nc_ripoffline) (NCURSES_SP_ARGx 757 (line < 0) ? -1 : 1, 758 init); 759 } 760 761 #if NCURSES_SP_FUNCS 762 NCURSES_EXPORT(int) 763 ripoffline(int line, int (*init) (WINDOW *, int)) 764 { 765 return NCURSES_SP_NAME(ripoffline) (CURRENT_SCREEN_PRE, line, init); 766 } 767 #endif 768