1 /* $OpenBSD: tty.c,v 1.342 2020/01/29 15:07:49 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER 15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/types.h> 20 #include <sys/ioctl.h> 21 22 #include <netinet/in.h> 23 24 #include <curses.h> 25 #include <errno.h> 26 #include <fcntl.h> 27 #include <resolv.h> 28 #include <stdlib.h> 29 #include <string.h> 30 #include <termios.h> 31 #include <unistd.h> 32 33 #include "tmux.h" 34 35 static int tty_log_fd = -1; 36 37 static int tty_client_ready(struct client *, struct window_pane *); 38 39 static void tty_set_italics(struct tty *); 40 static int tty_try_colour(struct tty *, int, const char *); 41 static void tty_force_cursor_colour(struct tty *, const char *); 42 static void tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int, 43 u_int); 44 static void tty_cursor_pane_unless_wrap(struct tty *, 45 const struct tty_ctx *, u_int, u_int); 46 static void tty_invalidate(struct tty *); 47 static void tty_colours(struct tty *, const struct grid_cell *); 48 static void tty_check_fg(struct tty *, struct window_pane *, 49 struct grid_cell *); 50 static void tty_check_bg(struct tty *, struct window_pane *, 51 struct grid_cell *); 52 static void tty_check_us(struct tty *, struct window_pane *, 53 struct grid_cell *); 54 static void tty_colours_fg(struct tty *, const struct grid_cell *); 55 static void tty_colours_bg(struct tty *, const struct grid_cell *); 56 static void tty_colours_us(struct tty *, const struct grid_cell *); 57 58 static void tty_region_pane(struct tty *, const struct tty_ctx *, u_int, 59 u_int); 60 static void tty_region(struct tty *, u_int, u_int); 61 static void tty_margin_pane(struct tty *, const struct tty_ctx *); 62 static void tty_margin(struct tty *, u_int, u_int); 63 static int tty_large_region(struct tty *, const struct tty_ctx *); 64 static int tty_fake_bce(const struct tty *, struct window_pane *, u_int); 65 static void tty_redraw_region(struct tty *, const struct tty_ctx *); 66 static void tty_emulate_repeat(struct tty *, enum tty_code_code, 67 enum tty_code_code, u_int); 68 static void tty_repeat_space(struct tty *, u_int); 69 static void tty_draw_pane(struct tty *, const struct tty_ctx *, u_int); 70 static void tty_cell(struct tty *, const struct grid_cell *, 71 struct window_pane *); 72 static void tty_default_colours(struct grid_cell *, struct window_pane *); 73 static void tty_default_attributes(struct tty *, struct window_pane *, 74 u_int); 75 76 #define tty_use_margin(tty) \ 77 ((tty->term->flags|tty->term_flags) & TERM_DECSLRM) 78 79 #define tty_pane_full_width(tty, ctx) \ 80 ((ctx)->xoff == 0 && screen_size_x((ctx)->wp->screen) >= (tty)->sx) 81 82 #define TTY_BLOCK_INTERVAL (100000 /* 100 milliseconds */) 83 #define TTY_BLOCK_START(tty) (1 + ((tty)->sx * (tty)->sy) * 8) 84 #define TTY_BLOCK_STOP(tty) (1 + ((tty)->sx * (tty)->sy) / 8) 85 86 void 87 tty_create_log(void) 88 { 89 char name[64]; 90 91 xsnprintf(name, sizeof name, "tmux-out-%ld.log", (long)getpid()); 92 93 tty_log_fd = open(name, O_WRONLY|O_CREAT|O_TRUNC, 0644); 94 if (tty_log_fd != -1 && fcntl(tty_log_fd, F_SETFD, FD_CLOEXEC) == -1) 95 fatal("fcntl failed"); 96 } 97 98 int 99 tty_init(struct tty *tty, struct client *c, int fd, char *term) 100 { 101 if (!isatty(fd)) 102 return (-1); 103 104 memset(tty, 0, sizeof *tty); 105 106 if (term == NULL || *term == '\0') 107 tty->term_name = xstrdup("unknown"); 108 else 109 tty->term_name = xstrdup(term); 110 111 tty->fd = fd; 112 tty->client = c; 113 114 tty->cstyle = 0; 115 tty->ccolour = xstrdup(""); 116 117 tty->flags = 0; 118 tty->term_flags = 0; 119 120 return (0); 121 } 122 123 void 124 tty_resize(struct tty *tty) 125 { 126 struct client *c = tty->client; 127 struct winsize ws; 128 u_int sx, sy, xpixel, ypixel; 129 130 if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) { 131 sx = ws.ws_col; 132 if (sx == 0) { 133 sx = 80; 134 xpixel = 0; 135 } else 136 xpixel = ws.ws_xpixel / sx; 137 sy = ws.ws_row; 138 if (sy == 0) { 139 sy = 24; 140 ypixel = 0; 141 } else 142 ypixel = ws.ws_ypixel / sy; 143 } else { 144 sx = 80; 145 sy = 24; 146 xpixel = 0; 147 ypixel = 0; 148 } 149 log_debug("%s: %s now %ux%u (%ux%u)", __func__, c->name, sx, sy, 150 xpixel, ypixel); 151 tty_set_size(tty, sx, sy, xpixel, ypixel); 152 tty_invalidate(tty); 153 } 154 155 void 156 tty_set_size(struct tty *tty, u_int sx, u_int sy, u_int xpixel, u_int ypixel) 157 { 158 tty->sx = sx; 159 tty->sy = sy; 160 tty->xpixel = xpixel; 161 tty->ypixel = ypixel; 162 } 163 164 static void 165 tty_read_callback(__unused int fd, __unused short events, void *data) 166 { 167 struct tty *tty = data; 168 struct client *c = tty->client; 169 size_t size = EVBUFFER_LENGTH(tty->in); 170 int nread; 171 172 nread = evbuffer_read(tty->in, tty->fd, -1); 173 if (nread == 0 || nread == -1) { 174 event_del(&tty->event_in); 175 server_client_lost(tty->client); 176 return; 177 } 178 log_debug("%s: read %d bytes (already %zu)", c->name, nread, size); 179 180 while (tty_keys_next(tty)) 181 ; 182 } 183 184 static void 185 tty_timer_callback(__unused int fd, __unused short events, void *data) 186 { 187 struct tty *tty = data; 188 struct client *c = tty->client; 189 struct timeval tv = { .tv_usec = TTY_BLOCK_INTERVAL }; 190 191 log_debug("%s: %zu discarded", c->name, tty->discarded); 192 193 c->flags |= CLIENT_ALLREDRAWFLAGS; 194 c->discarded += tty->discarded; 195 196 if (tty->discarded < TTY_BLOCK_STOP(tty)) { 197 tty->flags &= ~TTY_BLOCK; 198 tty_invalidate(tty); 199 return; 200 } 201 tty->discarded = 0; 202 evtimer_add(&tty->timer, &tv); 203 } 204 205 static int 206 tty_block_maybe(struct tty *tty) 207 { 208 struct client *c = tty->client; 209 size_t size = EVBUFFER_LENGTH(tty->out); 210 struct timeval tv = { .tv_usec = TTY_BLOCK_INTERVAL }; 211 212 if (size < TTY_BLOCK_START(tty)) 213 return (0); 214 215 if (tty->flags & TTY_BLOCK) 216 return (1); 217 tty->flags |= TTY_BLOCK; 218 219 log_debug("%s: can't keep up, %zu discarded", c->name, size); 220 221 evbuffer_drain(tty->out, size); 222 c->discarded += size; 223 224 tty->discarded = 0; 225 evtimer_add(&tty->timer, &tv); 226 return (1); 227 } 228 229 static void 230 tty_write_callback(__unused int fd, __unused short events, void *data) 231 { 232 struct tty *tty = data; 233 struct client *c = tty->client; 234 size_t size = EVBUFFER_LENGTH(tty->out); 235 int nwrite; 236 237 nwrite = evbuffer_write(tty->out, tty->fd); 238 if (nwrite == -1) 239 return; 240 log_debug("%s: wrote %d bytes (of %zu)", c->name, nwrite, size); 241 242 if (c->redraw > 0) { 243 if ((size_t)nwrite >= c->redraw) 244 c->redraw = 0; 245 else 246 c->redraw -= nwrite; 247 log_debug("%s: waiting for redraw, %zu bytes left", c->name, 248 c->redraw); 249 } else if (tty_block_maybe(tty)) 250 return; 251 252 if (EVBUFFER_LENGTH(tty->out) != 0) 253 event_add(&tty->event_out, NULL); 254 } 255 256 int 257 tty_open(struct tty *tty, char **cause) 258 { 259 tty->term = tty_term_find(tty->term_name, tty->fd, cause); 260 if (tty->term == NULL) { 261 tty_close(tty); 262 return (-1); 263 } 264 tty->flags |= TTY_OPENED; 265 266 tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_BLOCK|TTY_TIMER); 267 268 event_set(&tty->event_in, tty->fd, EV_PERSIST|EV_READ, 269 tty_read_callback, tty); 270 tty->in = evbuffer_new(); 271 if (tty->in == NULL) 272 fatal("out of memory"); 273 274 event_set(&tty->event_out, tty->fd, EV_WRITE, tty_write_callback, tty); 275 tty->out = evbuffer_new(); 276 if (tty->out == NULL) 277 fatal("out of memory"); 278 279 evtimer_set(&tty->timer, tty_timer_callback, tty); 280 281 tty_start_tty(tty); 282 283 tty_keys_build(tty); 284 285 return (0); 286 } 287 288 static void 289 tty_start_timer_callback(__unused int fd, __unused short events, void *data) 290 { 291 struct tty *tty = data; 292 struct client *c = tty->client; 293 294 log_debug("%s: start timer fired", c->name); 295 tty->flags |= (TTY_HAVEDA|TTY_HAVEDSR); 296 } 297 298 void 299 tty_start_tty(struct tty *tty) 300 { 301 struct client *c = tty->client; 302 struct termios tio; 303 struct timeval tv = { .tv_sec = 1 }; 304 305 if (tty->fd != -1 && tcgetattr(tty->fd, &tty->tio) == 0) { 306 setblocking(tty->fd, 0); 307 event_add(&tty->event_in, NULL); 308 309 memcpy(&tio, &tty->tio, sizeof tio); 310 tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP); 311 tio.c_iflag |= IGNBRK; 312 tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET); 313 tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL| 314 ECHOPRT|ECHOKE|ISIG); 315 tio.c_cc[VMIN] = 1; 316 tio.c_cc[VTIME] = 0; 317 if (tcsetattr(tty->fd, TCSANOW, &tio) == 0) 318 tcflush(tty->fd, TCIOFLUSH); 319 } 320 321 tty_putcode(tty, TTYC_SMCUP); 322 323 tty_putcode(tty, TTYC_SMKX); 324 tty_putcode(tty, TTYC_CLEAR); 325 326 if (tty_acs_needed(tty)) { 327 log_debug("%s: using capabilities for ACS", c->name); 328 tty_putcode(tty, TTYC_ENACS); 329 } else 330 log_debug("%s: using UTF-8 for ACS", c->name); 331 332 tty_putcode(tty, TTYC_CNORM); 333 if (tty_term_has(tty->term, TTYC_KMOUS)) 334 tty_puts(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l"); 335 336 if (tty_term_flag(tty->term, TTYC_XT)) { 337 if (options_get_number(global_options, "focus-events")) { 338 tty->flags |= TTY_FOCUS; 339 tty_puts(tty, "\033[?1004h"); 340 } 341 if (~tty->flags & TTY_HAVEDA) 342 tty_puts(tty, "\033[c"); 343 if (~tty->flags & TTY_HAVEDSR) 344 tty_puts(tty, "\033[1337n"); 345 } else 346 tty->flags |= (TTY_HAVEDA|TTY_HAVEDSR); 347 348 evtimer_set(&tty->start_timer, tty_start_timer_callback, tty); 349 evtimer_add(&tty->start_timer, &tv); 350 351 tty->flags |= TTY_STARTED; 352 tty_invalidate(tty); 353 354 if (*tty->ccolour != '\0') 355 tty_force_cursor_colour(tty, ""); 356 357 tty->mouse_drag_flag = 0; 358 tty->mouse_drag_update = NULL; 359 tty->mouse_drag_release = NULL; 360 } 361 362 void 363 tty_stop_tty(struct tty *tty) 364 { 365 struct winsize ws; 366 367 if (!(tty->flags & TTY_STARTED)) 368 return; 369 tty->flags &= ~TTY_STARTED; 370 371 evtimer_del(&tty->start_timer); 372 373 event_del(&tty->timer); 374 tty->flags &= ~TTY_BLOCK; 375 376 event_del(&tty->event_in); 377 event_del(&tty->event_out); 378 379 /* 380 * Be flexible about error handling and try not kill the server just 381 * because the fd is invalid. Things like ssh -t can easily leave us 382 * with a dead tty. 383 */ 384 if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1) 385 return; 386 if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1) 387 return; 388 389 tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1)); 390 if (tty_acs_needed(tty)) 391 tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS)); 392 tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0)); 393 tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX)); 394 tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR)); 395 if (tty_term_has(tty->term, TTYC_SS) && tty->cstyle != 0) { 396 if (tty_term_has(tty->term, TTYC_SE)) 397 tty_raw(tty, tty_term_string(tty->term, TTYC_SE)); 398 else 399 tty_raw(tty, tty_term_string1(tty->term, TTYC_SS, 0)); 400 } 401 if (tty->mode & MODE_BRACKETPASTE) 402 tty_raw(tty, "\033[?2004l"); 403 if (*tty->ccolour != '\0') 404 tty_raw(tty, tty_term_string(tty->term, TTYC_CR)); 405 406 tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM)); 407 if (tty_term_has(tty->term, TTYC_KMOUS)) 408 tty_raw(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l"); 409 410 if (tty_term_flag(tty->term, TTYC_XT)) { 411 if (tty->flags & TTY_FOCUS) { 412 tty->flags &= ~TTY_FOCUS; 413 tty_raw(tty, "\033[?1004l"); 414 } 415 } 416 417 if (tty_use_margin(tty)) 418 tty_raw(tty, "\033[?69l"); /* DECLRMM */ 419 tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP)); 420 421 setblocking(tty->fd, 1); 422 } 423 424 void 425 tty_close(struct tty *tty) 426 { 427 if (event_initialized(&tty->key_timer)) 428 evtimer_del(&tty->key_timer); 429 tty_stop_tty(tty); 430 431 if (tty->flags & TTY_OPENED) { 432 evbuffer_free(tty->in); 433 event_del(&tty->event_in); 434 evbuffer_free(tty->out); 435 event_del(&tty->event_out); 436 437 tty_term_free(tty->term); 438 tty_keys_free(tty); 439 440 tty->flags &= ~TTY_OPENED; 441 } 442 443 if (tty->fd != -1) { 444 close(tty->fd); 445 tty->fd = -1; 446 } 447 } 448 449 void 450 tty_free(struct tty *tty) 451 { 452 tty_close(tty); 453 454 free(tty->ccolour); 455 free(tty->term_name); 456 } 457 458 void 459 tty_set_flags(struct tty *tty, int flags) 460 { 461 tty->term_flags |= flags; 462 463 if (tty_use_margin(tty)) 464 tty_puts(tty, "\033[?69h"); /* DECLRMM */ 465 } 466 467 void 468 tty_raw(struct tty *tty, const char *s) 469 { 470 ssize_t n, slen; 471 u_int i; 472 473 slen = strlen(s); 474 for (i = 0; i < 5; i++) { 475 n = write(tty->fd, s, slen); 476 if (n >= 0) { 477 s += n; 478 slen -= n; 479 if (slen == 0) 480 break; 481 } else if (n == -1 && errno != EAGAIN) 482 break; 483 usleep(100); 484 } 485 } 486 487 void 488 tty_putcode(struct tty *tty, enum tty_code_code code) 489 { 490 tty_puts(tty, tty_term_string(tty->term, code)); 491 } 492 493 void 494 tty_putcode1(struct tty *tty, enum tty_code_code code, int a) 495 { 496 if (a < 0) 497 return; 498 tty_puts(tty, tty_term_string1(tty->term, code, a)); 499 } 500 501 void 502 tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b) 503 { 504 if (a < 0 || b < 0) 505 return; 506 tty_puts(tty, tty_term_string2(tty->term, code, a, b)); 507 } 508 509 void 510 tty_putcode3(struct tty *tty, enum tty_code_code code, int a, int b, int c) 511 { 512 if (a < 0 || b < 0 || c < 0) 513 return; 514 tty_puts(tty, tty_term_string3(tty->term, code, a, b, c)); 515 } 516 517 void 518 tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a) 519 { 520 if (a != NULL) 521 tty_puts(tty, tty_term_ptr1(tty->term, code, a)); 522 } 523 524 void 525 tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a, 526 const void *b) 527 { 528 if (a != NULL && b != NULL) 529 tty_puts(tty, tty_term_ptr2(tty->term, code, a, b)); 530 } 531 532 static void 533 tty_add(struct tty *tty, const char *buf, size_t len) 534 { 535 struct client *c = tty->client; 536 537 if (tty->flags & TTY_BLOCK) { 538 tty->discarded += len; 539 return; 540 } 541 542 evbuffer_add(tty->out, buf, len); 543 log_debug("%s: %.*s", c->name, (int)len, buf); 544 c->written += len; 545 546 if (tty_log_fd != -1) 547 write(tty_log_fd, buf, len); 548 if (tty->flags & TTY_STARTED) 549 event_add(&tty->event_out, NULL); 550 } 551 552 void 553 tty_puts(struct tty *tty, const char *s) 554 { 555 if (*s != '\0') 556 tty_add(tty, s, strlen(s)); 557 } 558 559 void 560 tty_putc(struct tty *tty, u_char ch) 561 { 562 const char *acs; 563 564 if ((tty->term->flags & TERM_NOXENL) && 565 ch >= 0x20 && ch != 0x7f && 566 tty->cy == tty->sy - 1 && 567 tty->cx + 1 >= tty->sx) 568 return; 569 570 if (tty->cell.attr & GRID_ATTR_CHARSET) { 571 acs = tty_acs_get(tty, ch); 572 if (acs != NULL) 573 tty_add(tty, acs, strlen(acs)); 574 else 575 tty_add(tty, &ch, 1); 576 } else 577 tty_add(tty, &ch, 1); 578 579 if (ch >= 0x20 && ch != 0x7f) { 580 if (tty->cx >= tty->sx) { 581 tty->cx = 1; 582 if (tty->cy != tty->rlower) 583 tty->cy++; 584 585 /* 586 * On !xenl terminals, force the cursor position to 587 * where we think it should be after a line wrap - this 588 * means it works on sensible terminals as well. 589 */ 590 if (tty->term->flags & TERM_NOXENL) 591 tty_putcode2(tty, TTYC_CUP, tty->cy, tty->cx); 592 } else 593 tty->cx++; 594 } 595 } 596 597 void 598 tty_putn(struct tty *tty, const void *buf, size_t len, u_int width) 599 { 600 if ((tty->term->flags & TERM_NOXENL) && 601 tty->cy == tty->sy - 1 && 602 tty->cx + len >= tty->sx) 603 len = tty->sx - tty->cx - 1; 604 605 tty_add(tty, buf, len); 606 if (tty->cx + width > tty->sx) { 607 tty->cx = (tty->cx + width) - tty->sx; 608 if (tty->cx <= tty->sx) 609 tty->cy++; 610 else 611 tty->cx = tty->cy = UINT_MAX; 612 } else 613 tty->cx += width; 614 } 615 616 static void 617 tty_set_italics(struct tty *tty) 618 { 619 const char *s; 620 621 if (tty_term_has(tty->term, TTYC_SITM)) { 622 s = options_get_string(global_options, "default-terminal"); 623 if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) { 624 tty_putcode(tty, TTYC_SITM); 625 return; 626 } 627 } 628 tty_putcode(tty, TTYC_SMSO); 629 } 630 631 void 632 tty_set_title(struct tty *tty, const char *title) 633 { 634 if (!tty_term_has(tty->term, TTYC_TSL) || 635 !tty_term_has(tty->term, TTYC_FSL)) 636 return; 637 638 tty_putcode(tty, TTYC_TSL); 639 tty_puts(tty, title); 640 tty_putcode(tty, TTYC_FSL); 641 } 642 643 static void 644 tty_force_cursor_colour(struct tty *tty, const char *ccolour) 645 { 646 if (*ccolour == '\0') 647 tty_putcode(tty, TTYC_CR); 648 else 649 tty_putcode_ptr1(tty, TTYC_CS, ccolour); 650 free(tty->ccolour); 651 tty->ccolour = xstrdup(ccolour); 652 } 653 654 void 655 tty_update_mode(struct tty *tty, int mode, struct screen *s) 656 { 657 int changed; 658 659 if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0) 660 tty_force_cursor_colour(tty, s->ccolour); 661 662 if (tty->flags & TTY_NOCURSOR) 663 mode &= ~MODE_CURSOR; 664 665 changed = mode ^ tty->mode; 666 if (changed & MODE_BLINKING) { 667 if (tty_term_has(tty->term, TTYC_CVVIS)) 668 tty_putcode(tty, TTYC_CVVIS); 669 else 670 tty_putcode(tty, TTYC_CNORM); 671 changed |= MODE_CURSOR; 672 } 673 if (changed & MODE_CURSOR) { 674 if (mode & MODE_CURSOR) 675 tty_putcode(tty, TTYC_CNORM); 676 else 677 tty_putcode(tty, TTYC_CIVIS); 678 } 679 if (s != NULL && tty->cstyle != s->cstyle) { 680 if (tty_term_has(tty->term, TTYC_SS)) { 681 if (s->cstyle == 0 && 682 tty_term_has(tty->term, TTYC_SE)) 683 tty_putcode(tty, TTYC_SE); 684 else 685 tty_putcode1(tty, TTYC_SS, s->cstyle); 686 } 687 tty->cstyle = s->cstyle; 688 } 689 if (changed & ALL_MOUSE_MODES) { 690 if (mode & ALL_MOUSE_MODES) { 691 /* 692 * Enable the SGR (1006) extension unconditionally, as 693 * it is safe from misinterpretation. 694 */ 695 tty_puts(tty, "\033[?1006h"); 696 if (mode & MODE_MOUSE_ALL) 697 tty_puts(tty, "\033[?1003h"); 698 else if (mode & MODE_MOUSE_BUTTON) 699 tty_puts(tty, "\033[?1002h"); 700 else if (mode & MODE_MOUSE_STANDARD) 701 tty_puts(tty, "\033[?1000h"); 702 } else { 703 if (tty->mode & MODE_MOUSE_ALL) 704 tty_puts(tty, "\033[?1003l"); 705 else if (tty->mode & MODE_MOUSE_BUTTON) 706 tty_puts(tty, "\033[?1002l"); 707 else if (tty->mode & MODE_MOUSE_STANDARD) 708 tty_puts(tty, "\033[?1000l"); 709 tty_puts(tty, "\033[?1006l"); 710 } 711 } 712 if (changed & MODE_BRACKETPASTE) { 713 if (mode & MODE_BRACKETPASTE) 714 tty_puts(tty, "\033[?2004h"); 715 else 716 tty_puts(tty, "\033[?2004l"); 717 } 718 tty->mode = mode; 719 } 720 721 static void 722 tty_emulate_repeat(struct tty *tty, enum tty_code_code code, 723 enum tty_code_code code1, u_int n) 724 { 725 if (tty_term_has(tty->term, code)) 726 tty_putcode1(tty, code, n); 727 else { 728 while (n-- > 0) 729 tty_putcode(tty, code1); 730 } 731 } 732 733 static void 734 tty_repeat_space(struct tty *tty, u_int n) 735 { 736 static char s[500]; 737 738 if (*s != ' ') 739 memset(s, ' ', sizeof s); 740 741 while (n > sizeof s) { 742 tty_putn(tty, s, sizeof s, sizeof s); 743 n -= sizeof s; 744 } 745 if (n != 0) 746 tty_putn(tty, s, n, n); 747 } 748 749 /* Is this window bigger than the terminal? */ 750 int 751 tty_window_bigger(struct tty *tty) 752 { 753 struct client *c = tty->client; 754 struct window *w = c->session->curw->window; 755 756 return (tty->sx < w->sx || tty->sy - status_line_size(c) < w->sy); 757 } 758 759 /* What offset should this window be drawn at? */ 760 int 761 tty_window_offset(struct tty *tty, u_int *ox, u_int *oy, u_int *sx, u_int *sy) 762 { 763 *ox = tty->oox; 764 *oy = tty->ooy; 765 *sx = tty->osx; 766 *sy = tty->osy; 767 768 return (tty->oflag); 769 } 770 771 /* What offset should this window be drawn at? */ 772 static int 773 tty_window_offset1(struct tty *tty, u_int *ox, u_int *oy, u_int *sx, u_int *sy) 774 { 775 struct client *c = tty->client; 776 struct window *w = c->session->curw->window; 777 struct window_pane *wp = w->active; 778 u_int cx, cy, lines; 779 780 lines = status_line_size(c); 781 782 if (tty->sx >= w->sx && tty->sy - lines >= w->sy) { 783 *ox = 0; 784 *oy = 0; 785 *sx = w->sx; 786 *sy = w->sy; 787 788 c->pan_window = NULL; 789 return (0); 790 } 791 792 *sx = tty->sx; 793 *sy = tty->sy - lines; 794 795 if (c->pan_window == w) { 796 if (*sx >= w->sx) 797 c->pan_ox = 0; 798 else if (c->pan_ox + *sx > w->sx) 799 c->pan_ox = w->sx - *sx; 800 *ox = c->pan_ox; 801 if (*sy >= w->sy) 802 c->pan_oy = 0; 803 else if (c->pan_oy + *sy > w->sy) 804 c->pan_oy = w->sy - *sy; 805 *oy = c->pan_oy; 806 return (1); 807 } 808 809 if (~wp->screen->mode & MODE_CURSOR) { 810 *ox = 0; 811 *oy = 0; 812 } else { 813 cx = wp->xoff + wp->screen->cx; 814 cy = wp->yoff + wp->screen->cy; 815 816 if (cx < *sx) 817 *ox = 0; 818 else if (cx > w->sx - *sx) 819 *ox = w->sx - *sx; 820 else 821 *ox = cx - *sx / 2; 822 823 if (cy < *sy) 824 *oy = 0; 825 else if (cy > w->sy - *sy) 826 *oy = w->sy - *sy; 827 else 828 *oy = cy - *sy / 2; 829 } 830 831 c->pan_window = NULL; 832 return (1); 833 } 834 835 /* Update stored offsets for a window and redraw if necessary. */ 836 void 837 tty_update_window_offset(struct window *w) 838 { 839 struct client *c; 840 841 TAILQ_FOREACH(c, &clients, entry) { 842 if (c->session != NULL && c->session->curw->window == w) 843 tty_update_client_offset(c); 844 } 845 } 846 847 /* Update stored offsets for a client and redraw if necessary. */ 848 void 849 tty_update_client_offset(struct client *c) 850 { 851 u_int ox, oy, sx, sy; 852 853 if (~c->flags & CLIENT_TERMINAL) 854 return; 855 856 c->tty.oflag = tty_window_offset1(&c->tty, &ox, &oy, &sx, &sy); 857 if (ox == c->tty.oox && 858 oy == c->tty.ooy && 859 sx == c->tty.osx && 860 sy == c->tty.osy) 861 return; 862 863 log_debug ("%s: %s offset has changed (%u,%u %ux%u -> %u,%u %ux%u)", 864 __func__, c->name, c->tty.oox, c->tty.ooy, c->tty.osx, c->tty.osy, 865 ox, oy, sx, sy); 866 867 c->tty.oox = ox; 868 c->tty.ooy = oy; 869 c->tty.osx = sx; 870 c->tty.osy = sy; 871 872 c->flags |= (CLIENT_REDRAWWINDOW|CLIENT_REDRAWSTATUS); 873 } 874 875 /* 876 * Is the region large enough to be worth redrawing once later rather than 877 * probably several times now? Currently yes if it is more than 50% of the 878 * pane. 879 */ 880 static int 881 tty_large_region(__unused struct tty *tty, const struct tty_ctx *ctx) 882 { 883 struct window_pane *wp = ctx->wp; 884 885 return (ctx->orlower - ctx->orupper >= screen_size_y(wp->screen) / 2); 886 } 887 888 /* 889 * Return if BCE is needed but the terminal doesn't have it - it'll need to be 890 * emulated. 891 */ 892 static int 893 tty_fake_bce(const struct tty *tty, struct window_pane *wp, u_int bg) 894 { 895 struct grid_cell gc; 896 897 if (tty_term_flag(tty->term, TTYC_BCE)) 898 return (0); 899 900 memcpy(&gc, &grid_default_cell, sizeof gc); 901 if (wp != NULL) 902 tty_default_colours(&gc, wp); 903 904 if (!COLOUR_DEFAULT(bg) || !COLOUR_DEFAULT(gc.bg)) 905 return (1); 906 return (0); 907 } 908 909 /* 910 * Redraw scroll region using data from screen (already updated). Used when 911 * CSR not supported, or window is a pane that doesn't take up the full 912 * width of the terminal. 913 */ 914 static void 915 tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx) 916 { 917 struct window_pane *wp = ctx->wp; 918 struct screen *s = wp->screen; 919 u_int i; 920 921 /* 922 * If region is large, schedule a window redraw. In most cases this is 923 * likely to be followed by some more scrolling. 924 */ 925 if (tty_large_region(tty, ctx)) { 926 wp->flags |= PANE_REDRAW; 927 return; 928 } 929 930 if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) { 931 for (i = ctx->ocy; i < screen_size_y(s); i++) 932 tty_draw_pane(tty, ctx, i); 933 } else { 934 for (i = ctx->orupper; i <= ctx->orlower; i++) 935 tty_draw_pane(tty, ctx, i); 936 } 937 } 938 939 /* Is this position visible in the pane? */ 940 static int 941 tty_is_visible(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py, 942 u_int nx, u_int ny) 943 { 944 u_int xoff = ctx->xoff + px, yoff = ctx->yoff + py, lines; 945 946 if (!ctx->bigger) 947 return (1); 948 949 if (status_at_line(tty->client) == 0) 950 lines = status_line_size(tty->client); 951 else 952 lines = 0; 953 954 if (xoff + nx <= ctx->ox || xoff >= ctx->ox + ctx->sx || 955 yoff + ny <= ctx->oy || yoff >= lines + ctx->oy + ctx->sy) 956 return (0); 957 return (1); 958 } 959 960 /* Clamp line position to visible part of pane. */ 961 static int 962 tty_clamp_line(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py, 963 u_int nx, u_int *i, u_int *x, u_int *rx, u_int *ry) 964 { 965 struct window_pane *wp = ctx->wp; 966 u_int xoff = wp->xoff + px; 967 968 if (!tty_is_visible(tty, ctx, px, py, nx, 1)) 969 return (0); 970 *ry = ctx->yoff + py - ctx->oy; 971 972 if (xoff >= ctx->ox && xoff + nx <= ctx->ox + ctx->sx) { 973 /* All visible. */ 974 *i = 0; 975 *x = ctx->xoff + px - ctx->ox; 976 *rx = nx; 977 } else if (xoff < ctx->ox && xoff + nx > ctx->ox + ctx->sx) { 978 /* Both left and right not visible. */ 979 *i = ctx->ox; 980 *x = 0; 981 *rx = ctx->sx; 982 } else if (xoff < ctx->ox) { 983 /* Left not visible. */ 984 *i = ctx->ox - (ctx->xoff + px); 985 *x = 0; 986 *rx = nx - *i; 987 } else { 988 /* Right not visible. */ 989 *i = 0; 990 *x = (ctx->xoff + px) - ctx->ox; 991 *rx = ctx->sx - *x; 992 } 993 if (*rx > nx) 994 fatalx("%s: x too big, %u > %u", __func__, *rx, nx); 995 996 return (1); 997 } 998 999 /* Clear a line. */ 1000 static void 1001 tty_clear_line(struct tty *tty, struct window_pane *wp, u_int py, u_int px, 1002 u_int nx, u_int bg) 1003 { 1004 struct client *c = tty->client; 1005 1006 log_debug("%s: %s, %u at %u,%u", __func__, c->name, nx, px, py); 1007 1008 /* Nothing to clear. */ 1009 if (nx == 0) 1010 return; 1011 1012 /* If genuine BCE is available, can try escape sequences. */ 1013 if (!tty_fake_bce(tty, wp, bg)) { 1014 /* Off the end of the line, use EL if available. */ 1015 if (px + nx >= tty->sx && tty_term_has(tty->term, TTYC_EL)) { 1016 tty_cursor(tty, px, py); 1017 tty_putcode(tty, TTYC_EL); 1018 return; 1019 } 1020 1021 /* At the start of the line. Use EL1. */ 1022 if (px == 0 && tty_term_has(tty->term, TTYC_EL1)) { 1023 tty_cursor(tty, px + nx - 1, py); 1024 tty_putcode(tty, TTYC_EL1); 1025 return; 1026 } 1027 1028 /* Section of line. Use ECH if possible. */ 1029 if (tty_term_has(tty->term, TTYC_ECH)) { 1030 tty_cursor(tty, px, py); 1031 tty_putcode1(tty, TTYC_ECH, nx); 1032 return; 1033 } 1034 } 1035 1036 /* Couldn't use an escape sequence, use spaces. */ 1037 tty_cursor(tty, px, py); 1038 tty_repeat_space(tty, nx); 1039 } 1040 1041 /* Clear a line, adjusting to visible part of pane. */ 1042 static void 1043 tty_clear_pane_line(struct tty *tty, const struct tty_ctx *ctx, u_int py, 1044 u_int px, u_int nx, u_int bg) 1045 { 1046 struct client *c = tty->client; 1047 u_int i, x, rx, ry; 1048 1049 log_debug("%s: %s, %u at %u,%u", __func__, c->name, nx, px, py); 1050 1051 if (tty_clamp_line(tty, ctx, px, py, nx, &i, &x, &rx, &ry)) 1052 tty_clear_line(tty, ctx->wp, ry, x, rx, bg); 1053 } 1054 1055 /* Clamp area position to visible part of pane. */ 1056 static int 1057 tty_clamp_area(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py, 1058 u_int nx, u_int ny, u_int *i, u_int *j, u_int *x, u_int *y, u_int *rx, 1059 u_int *ry) 1060 { 1061 struct window_pane *wp = ctx->wp; 1062 u_int xoff = wp->xoff + px, yoff = wp->yoff + py; 1063 1064 if (!tty_is_visible(tty, ctx, px, py, nx, ny)) 1065 return (0); 1066 1067 if (xoff >= ctx->ox && xoff + nx <= ctx->ox + ctx->sx) { 1068 /* All visible. */ 1069 *i = 0; 1070 *x = ctx->xoff + px - ctx->ox; 1071 *rx = nx; 1072 } else if (xoff < ctx->ox && xoff + nx > ctx->ox + ctx->sx) { 1073 /* Both left and right not visible. */ 1074 *i = ctx->ox; 1075 *x = 0; 1076 *rx = ctx->sx; 1077 } else if (xoff < ctx->ox) { 1078 /* Left not visible. */ 1079 *i = ctx->ox - (ctx->xoff + px); 1080 *x = 0; 1081 *rx = nx - *i; 1082 } else { 1083 /* Right not visible. */ 1084 *i = 0; 1085 *x = (ctx->xoff + px) - ctx->ox; 1086 *rx = ctx->sx - *x; 1087 } 1088 if (*rx > nx) 1089 fatalx("%s: x too big, %u > %u", __func__, *rx, nx); 1090 1091 if (yoff >= ctx->oy && yoff + ny <= ctx->oy + ctx->sy) { 1092 /* All visible. */ 1093 *j = 0; 1094 *y = ctx->yoff + py - ctx->oy; 1095 *ry = ny; 1096 } else if (yoff < ctx->oy && yoff + ny > ctx->oy + ctx->sy) { 1097 /* Both top and bottom not visible. */ 1098 *j = ctx->oy; 1099 *y = 0; 1100 *ry = ctx->sy; 1101 } else if (yoff < ctx->oy) { 1102 /* Top not visible. */ 1103 *j = ctx->oy - (ctx->yoff + py); 1104 *y = 0; 1105 *ry = ny - *j; 1106 } else { 1107 /* Bottom not visible. */ 1108 *j = 0; 1109 *y = (ctx->yoff + py) - ctx->oy; 1110 *ry = ctx->sy - *y; 1111 } 1112 if (*ry > ny) 1113 fatalx("%s: y too big, %u > %u", __func__, *ry, ny); 1114 1115 return (1); 1116 } 1117 1118 /* Clear an area, adjusting to visible part of pane. */ 1119 static void 1120 tty_clear_area(struct tty *tty, struct window_pane *wp, u_int py, u_int ny, 1121 u_int px, u_int nx, u_int bg) 1122 { 1123 struct client *c = tty->client; 1124 u_int yy; 1125 char tmp[64]; 1126 1127 log_debug("%s: %s, %u,%u at %u,%u", __func__, c->name, nx, ny, px, py); 1128 1129 /* Nothing to clear. */ 1130 if (nx == 0 || ny == 0) 1131 return; 1132 1133 /* If genuine BCE is available, can try escape sequences. */ 1134 if (!tty_fake_bce(tty, wp, bg)) { 1135 /* Use ED if clearing off the bottom of the terminal. */ 1136 if (px == 0 && 1137 px + nx >= tty->sx && 1138 py + ny >= tty->sy && 1139 tty_term_has(tty->term, TTYC_ED)) { 1140 tty_cursor(tty, 0, py); 1141 tty_putcode(tty, TTYC_ED); 1142 return; 1143 } 1144 1145 /* 1146 * On VT420 compatible terminals we can use DECFRA if the 1147 * background colour isn't default (because it doesn't work 1148 * after SGR 0). 1149 */ 1150 if (((tty->term->flags|tty->term_flags) & TERM_DECFRA) && 1151 !COLOUR_DEFAULT(bg)) { 1152 xsnprintf(tmp, sizeof tmp, "\033[32;%u;%u;%u;%u$x", 1153 py + 1, px + 1, py + ny, px + nx); 1154 tty_puts(tty, tmp); 1155 return; 1156 } 1157 1158 /* Full lines can be scrolled away to clear them. */ 1159 if (px == 0 && 1160 px + nx >= tty->sx && 1161 ny > 2 && 1162 tty_term_has(tty->term, TTYC_CSR) && 1163 tty_term_has(tty->term, TTYC_INDN)) { 1164 tty_region(tty, py, py + ny - 1); 1165 tty_margin_off(tty); 1166 tty_putcode1(tty, TTYC_INDN, ny); 1167 return; 1168 } 1169 1170 /* 1171 * If margins are supported, can just scroll the area off to 1172 * clear it. 1173 */ 1174 if (nx > 2 && 1175 ny > 2 && 1176 tty_term_has(tty->term, TTYC_CSR) && 1177 tty_use_margin(tty) && 1178 tty_term_has(tty->term, TTYC_INDN)) { 1179 tty_region(tty, py, py + ny - 1); 1180 tty_margin(tty, px, px + nx - 1); 1181 tty_putcode1(tty, TTYC_INDN, ny); 1182 return; 1183 } 1184 } 1185 1186 /* Couldn't use an escape sequence, loop over the lines. */ 1187 for (yy = py; yy < py + ny; yy++) 1188 tty_clear_line(tty, wp, yy, px, nx, bg); 1189 } 1190 1191 /* Clear an area in a pane. */ 1192 static void 1193 tty_clear_pane_area(struct tty *tty, const struct tty_ctx *ctx, u_int py, 1194 u_int ny, u_int px, u_int nx, u_int bg) 1195 { 1196 u_int i, j, x, y, rx, ry; 1197 1198 if (tty_clamp_area(tty, ctx, px, py, nx, ny, &i, &j, &x, &y, &rx, &ry)) 1199 tty_clear_area(tty, ctx->wp, y, ry, x, rx, bg); 1200 } 1201 1202 static void 1203 tty_draw_pane(struct tty *tty, const struct tty_ctx *ctx, u_int py) 1204 { 1205 struct window_pane *wp = ctx->wp; 1206 struct screen *s = wp->screen; 1207 u_int nx = screen_size_x(s), i, x, rx, ry; 1208 1209 log_debug("%s: %s %u %d", __func__, tty->client->name, py, ctx->bigger); 1210 1211 if (!ctx->bigger) { 1212 tty_draw_line(tty, wp, s, 0, py, nx, ctx->xoff, ctx->yoff + py); 1213 return; 1214 } 1215 if (tty_clamp_line(tty, ctx, 0, py, nx, &i, &x, &rx, &ry)) 1216 tty_draw_line(tty, wp, s, i, py, rx, x, ry); 1217 } 1218 1219 static const struct grid_cell * 1220 tty_check_codeset(struct tty *tty, const struct grid_cell *gc) 1221 { 1222 static struct grid_cell new; 1223 u_int n; 1224 1225 /* Characters less than 0x7f are always fine, no matter what. */ 1226 if (gc->data.size == 1 && *gc->data.data < 0x7f) 1227 return (gc); 1228 1229 /* UTF-8 terminal and a UTF-8 character - fine. */ 1230 if (tty->flags & TTY_UTF8) 1231 return (gc); 1232 1233 /* Replace by the right number of underscores. */ 1234 n = gc->data.width; 1235 if (n > UTF8_SIZE) 1236 n = UTF8_SIZE; 1237 memcpy(&new, gc, sizeof new); 1238 new.data.size = n; 1239 memset(new.data.data, '_', n); 1240 return (&new); 1241 } 1242 1243 void 1244 tty_draw_line(struct tty *tty, struct window_pane *wp, struct screen *s, 1245 u_int px, u_int py, u_int nx, u_int atx, u_int aty) 1246 { 1247 struct grid *gd = s->grid; 1248 struct grid_cell gc, last; 1249 const struct grid_cell *gcp; 1250 struct grid_line *gl; 1251 u_int i, j, ux, sx, width; 1252 int flags, cleared = 0, wrapped = 0; 1253 char buf[512]; 1254 size_t len; 1255 u_int cellsize; 1256 1257 log_debug("%s: px=%u py=%u nx=%u atx=%u aty=%u", __func__, 1258 px, py, nx, atx, aty); 1259 1260 /* 1261 * py is the line in the screen to draw. 1262 * px is the start x and nx is the width to draw. 1263 * atx,aty is the line on the terminal to draw it. 1264 */ 1265 1266 flags = (tty->flags & TTY_NOCURSOR); 1267 tty->flags |= TTY_NOCURSOR; 1268 tty_update_mode(tty, tty->mode, s); 1269 1270 tty_region_off(tty); 1271 tty_margin_off(tty); 1272 1273 /* 1274 * Clamp the width to cellsize - note this is not cellused, because 1275 * there may be empty background cells after it (from BCE). 1276 */ 1277 sx = screen_size_x(s); 1278 if (nx > sx) 1279 nx = sx; 1280 cellsize = grid_get_line(gd, gd->hsize + py)->cellsize; 1281 if (sx > cellsize) 1282 sx = cellsize; 1283 if (sx > tty->sx) 1284 sx = tty->sx; 1285 if (sx > nx) 1286 sx = nx; 1287 ux = 0; 1288 1289 if (py == 0) 1290 gl = NULL; 1291 else 1292 gl = grid_get_line(gd, gd->hsize + py - 1); 1293 if (wp == NULL || 1294 gl == NULL || 1295 (~gl->flags & GRID_LINE_WRAPPED) || 1296 atx != 0 || 1297 tty->cx < tty->sx || 1298 nx < tty->sx) { 1299 if (nx < tty->sx && 1300 atx == 0 && 1301 px + sx != nx && 1302 tty_term_has(tty->term, TTYC_EL1) && 1303 !tty_fake_bce(tty, wp, 8)) { 1304 tty_default_attributes(tty, wp, 8); 1305 tty_cursor(tty, nx - 1, aty); 1306 tty_putcode(tty, TTYC_EL1); 1307 cleared = 1; 1308 } 1309 } else { 1310 log_debug("%s: wrapped line %u", __func__, aty); 1311 wrapped = 1; 1312 } 1313 1314 memcpy(&last, &grid_default_cell, sizeof last); 1315 len = 0; 1316 width = 0; 1317 1318 for (i = 0; i < sx; i++) { 1319 grid_view_get_cell(gd, px + i, py, &gc); 1320 gcp = tty_check_codeset(tty, &gc); 1321 if (len != 0 && 1322 ((gcp->attr & GRID_ATTR_CHARSET) || 1323 gcp->flags != last.flags || 1324 gcp->attr != last.attr || 1325 gcp->fg != last.fg || 1326 gcp->bg != last.bg || 1327 gcp->us != last.us || 1328 ux + width + gcp->data.width > nx || 1329 (sizeof buf) - len < gcp->data.size)) { 1330 tty_attributes(tty, &last, wp); 1331 if (last.flags & GRID_FLAG_CLEARED) { 1332 log_debug("%s: %zu cleared", __func__, len); 1333 tty_clear_line(tty, wp, aty, atx + ux, width, 1334 last.bg); 1335 } else { 1336 if (!wrapped || atx != 0 || ux != 0) 1337 tty_cursor(tty, atx + ux, aty); 1338 tty_putn(tty, buf, len, width); 1339 } 1340 ux += width; 1341 1342 len = 0; 1343 width = 0; 1344 wrapped = 0; 1345 } 1346 1347 if (gcp->flags & GRID_FLAG_SELECTED) 1348 screen_select_cell(s, &last, gcp); 1349 else 1350 memcpy(&last, gcp, sizeof last); 1351 if (ux + gcp->data.width > nx) { 1352 tty_attributes(tty, &last, wp); 1353 tty_cursor(tty, atx + ux, aty); 1354 for (j = 0; j < gcp->data.width; j++) { 1355 if (ux + j > nx) 1356 break; 1357 tty_putc(tty, ' '); 1358 ux++; 1359 } 1360 } else if (gcp->attr & GRID_ATTR_CHARSET) { 1361 tty_attributes(tty, &last, wp); 1362 tty_cursor(tty, atx + ux, aty); 1363 for (j = 0; j < gcp->data.size; j++) 1364 tty_putc(tty, gcp->data.data[j]); 1365 ux += gc.data.width; 1366 } else { 1367 memcpy(buf + len, gcp->data.data, gcp->data.size); 1368 len += gcp->data.size; 1369 width += gcp->data.width; 1370 } 1371 } 1372 if (len != 0 && ((~last.flags & GRID_FLAG_CLEARED) || last.bg != 8)) { 1373 tty_attributes(tty, &last, wp); 1374 if (last.flags & GRID_FLAG_CLEARED) { 1375 log_debug("%s: %zu cleared (end)", __func__, len); 1376 tty_clear_line(tty, wp, aty, atx + ux, width, last.bg); 1377 } else { 1378 if (!wrapped || atx != 0 || ux != 0) 1379 tty_cursor(tty, atx + ux, aty); 1380 tty_putn(tty, buf, len, width); 1381 } 1382 ux += width; 1383 } 1384 1385 if (!cleared && ux < nx) { 1386 log_debug("%s: %u to end of line (%zu cleared)", __func__, 1387 nx - ux, len); 1388 tty_default_attributes(tty, wp, 8); 1389 tty_clear_line(tty, wp, aty, atx + ux, nx - ux, 8); 1390 } 1391 1392 tty->flags = (tty->flags & ~TTY_NOCURSOR) | flags; 1393 tty_update_mode(tty, tty->mode, s); 1394 } 1395 1396 static int 1397 tty_client_ready(struct client *c, struct window_pane *wp) 1398 { 1399 if (c->session == NULL || c->tty.term == NULL) 1400 return (0); 1401 if (c->flags & (CLIENT_REDRAWWINDOW|CLIENT_SUSPENDED)) 1402 return (0); 1403 if (c->tty.flags & TTY_FREEZE) 1404 return (0); 1405 if (c->session->curw->window != wp->window) 1406 return (0); 1407 if (wp->layout_cell == NULL) 1408 return (0); 1409 return (1); 1410 } 1411 1412 void 1413 tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *), 1414 struct tty_ctx *ctx) 1415 { 1416 struct window_pane *wp = ctx->wp; 1417 struct client *c; 1418 1419 if (wp == NULL) 1420 return; 1421 if (wp->flags & (PANE_REDRAW|PANE_DROP)) 1422 return; 1423 1424 TAILQ_FOREACH(c, &clients, entry) { 1425 if (!tty_client_ready(c, wp)) 1426 continue; 1427 1428 ctx->bigger = tty_window_offset(&c->tty, &ctx->ox, &ctx->oy, 1429 &ctx->sx, &ctx->sy); 1430 1431 ctx->xoff = wp->xoff; 1432 ctx->yoff = wp->yoff; 1433 1434 if (status_at_line(c) == 0) 1435 ctx->yoff += status_line_size(c); 1436 1437 cmdfn(&c->tty, ctx); 1438 } 1439 } 1440 1441 void 1442 tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx) 1443 { 1444 struct window_pane *wp = ctx->wp; 1445 1446 if (ctx->bigger || 1447 !tty_pane_full_width(tty, ctx) || 1448 tty_fake_bce(tty, wp, ctx->bg) || 1449 (!tty_term_has(tty->term, TTYC_ICH) && 1450 !tty_term_has(tty->term, TTYC_ICH1))) { 1451 tty_draw_pane(tty, ctx, ctx->ocy); 1452 return; 1453 } 1454 1455 tty_default_attributes(tty, wp, ctx->bg); 1456 1457 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1458 1459 tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num); 1460 } 1461 1462 void 1463 tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx) 1464 { 1465 struct window_pane *wp = ctx->wp; 1466 1467 if (ctx->bigger || 1468 !tty_pane_full_width(tty, ctx) || 1469 tty_fake_bce(tty, wp, ctx->bg) || 1470 (!tty_term_has(tty->term, TTYC_DCH) && 1471 !tty_term_has(tty->term, TTYC_DCH1))) { 1472 tty_draw_pane(tty, ctx, ctx->ocy); 1473 return; 1474 } 1475 1476 tty_default_attributes(tty, wp, ctx->bg); 1477 1478 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1479 1480 tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num); 1481 } 1482 1483 void 1484 tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx) 1485 { 1486 if (ctx->bigger) { 1487 tty_draw_pane(tty, ctx, ctx->ocy); 1488 return; 1489 } 1490 1491 tty_default_attributes(tty, ctx->wp, ctx->bg); 1492 1493 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1494 1495 if (tty_term_has(tty->term, TTYC_ECH) && 1496 !tty_fake_bce(tty, ctx->wp, 8)) 1497 tty_putcode1(tty, TTYC_ECH, ctx->num); 1498 else 1499 tty_repeat_space(tty, ctx->num); 1500 } 1501 1502 void 1503 tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx) 1504 { 1505 if (ctx->bigger || 1506 !tty_pane_full_width(tty, ctx) || 1507 tty_fake_bce(tty, ctx->wp, ctx->bg) || 1508 !tty_term_has(tty->term, TTYC_CSR) || 1509 !tty_term_has(tty->term, TTYC_IL1) || 1510 ctx->wp->sx == 1 || 1511 ctx->wp->sy == 1) { 1512 tty_redraw_region(tty, ctx); 1513 return; 1514 } 1515 1516 tty_default_attributes(tty, ctx->wp, ctx->bg); 1517 1518 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1519 tty_margin_off(tty); 1520 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1521 1522 tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num); 1523 tty->cx = tty->cy = UINT_MAX; 1524 } 1525 1526 void 1527 tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx) 1528 { 1529 if (ctx->bigger || 1530 !tty_pane_full_width(tty, ctx) || 1531 tty_fake_bce(tty, ctx->wp, ctx->bg) || 1532 !tty_term_has(tty->term, TTYC_CSR) || 1533 !tty_term_has(tty->term, TTYC_DL1) || 1534 ctx->wp->sx == 1 || 1535 ctx->wp->sy == 1) { 1536 tty_redraw_region(tty, ctx); 1537 return; 1538 } 1539 1540 tty_default_attributes(tty, ctx->wp, ctx->bg); 1541 1542 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1543 tty_margin_off(tty); 1544 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1545 1546 tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num); 1547 tty->cx = tty->cy = UINT_MAX; 1548 } 1549 1550 void 1551 tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx) 1552 { 1553 struct window_pane *wp = ctx->wp; 1554 u_int nx; 1555 1556 tty_default_attributes(tty, wp, ctx->bg); 1557 1558 nx = screen_size_x(wp->screen); 1559 tty_clear_pane_line(tty, ctx, ctx->ocy, 0, nx, ctx->bg); 1560 } 1561 1562 void 1563 tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx) 1564 { 1565 struct window_pane *wp = ctx->wp; 1566 u_int nx; 1567 1568 tty_default_attributes(tty, wp, ctx->bg); 1569 1570 nx = screen_size_x(wp->screen) - ctx->ocx; 1571 tty_clear_pane_line(tty, ctx, ctx->ocy, ctx->ocx, nx, ctx->bg); 1572 } 1573 1574 void 1575 tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx) 1576 { 1577 struct window_pane *wp = ctx->wp; 1578 1579 tty_default_attributes(tty, wp, ctx->bg); 1580 1581 tty_clear_pane_line(tty, ctx, ctx->ocy, 0, ctx->ocx + 1, ctx->bg); 1582 } 1583 1584 void 1585 tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx) 1586 { 1587 struct window_pane *wp = ctx->wp; 1588 1589 if (ctx->ocy != ctx->orupper) 1590 return; 1591 1592 if (ctx->bigger || 1593 (!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) || 1594 tty_fake_bce(tty, wp, 8) || 1595 !tty_term_has(tty->term, TTYC_CSR) || 1596 (!tty_term_has(tty->term, TTYC_RI) && 1597 !tty_term_has(tty->term, TTYC_RIN)) || 1598 ctx->wp->sx == 1 || 1599 ctx->wp->sy == 1) { 1600 tty_redraw_region(tty, ctx); 1601 return; 1602 } 1603 1604 tty_default_attributes(tty, wp, ctx->bg); 1605 1606 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1607 tty_margin_pane(tty, ctx); 1608 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper); 1609 1610 if (tty_term_has(tty->term, TTYC_RI)) 1611 tty_putcode(tty, TTYC_RI); 1612 else 1613 tty_putcode1(tty, TTYC_RIN, 1); 1614 } 1615 1616 void 1617 tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx) 1618 { 1619 struct window_pane *wp = ctx->wp; 1620 1621 if (ctx->ocy != ctx->orlower) 1622 return; 1623 1624 if (ctx->bigger || 1625 (!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) || 1626 tty_fake_bce(tty, wp, 8) || 1627 !tty_term_has(tty->term, TTYC_CSR) || 1628 wp->sx == 1 || 1629 wp->sy == 1) { 1630 tty_redraw_region(tty, ctx); 1631 return; 1632 } 1633 1634 tty_default_attributes(tty, wp, ctx->bg); 1635 1636 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1637 tty_margin_pane(tty, ctx); 1638 1639 /* 1640 * If we want to wrap a pane while using margins, the cursor needs to 1641 * be exactly on the right of the region. If the cursor is entirely off 1642 * the edge - move it back to the right. Some terminals are funny about 1643 * this and insert extra spaces, so only use the right if margins are 1644 * enabled. 1645 */ 1646 if (ctx->xoff + ctx->ocx > tty->rright) { 1647 if (!tty_use_margin(tty)) 1648 tty_cursor(tty, 0, ctx->yoff + ctx->ocy); 1649 else 1650 tty_cursor(tty, tty->rright, ctx->yoff + ctx->ocy); 1651 } else 1652 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1653 1654 tty_putc(tty, '\n'); 1655 } 1656 1657 void 1658 tty_cmd_scrollup(struct tty *tty, const struct tty_ctx *ctx) 1659 { 1660 struct window_pane *wp = ctx->wp; 1661 u_int i; 1662 1663 if (ctx->bigger || 1664 (!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) || 1665 tty_fake_bce(tty, wp, 8) || 1666 !tty_term_has(tty->term, TTYC_CSR) || 1667 wp->sx == 1 || 1668 wp->sy == 1) { 1669 tty_redraw_region(tty, ctx); 1670 return; 1671 } 1672 1673 tty_default_attributes(tty, wp, ctx->bg); 1674 1675 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1676 tty_margin_pane(tty, ctx); 1677 1678 if (ctx->num == 1 || !tty_term_has(tty->term, TTYC_INDN)) { 1679 if (!tty_use_margin(tty)) 1680 tty_cursor(tty, 0, tty->rlower); 1681 else 1682 tty_cursor(tty, tty->rright, tty->rlower); 1683 for (i = 0; i < ctx->num; i++) 1684 tty_putc(tty, '\n'); 1685 } else { 1686 tty_cursor(tty, 0, tty->cy); 1687 tty_putcode1(tty, TTYC_INDN, ctx->num); 1688 } 1689 } 1690 1691 void 1692 tty_cmd_scrolldown(struct tty *tty, const struct tty_ctx *ctx) 1693 { 1694 struct window_pane *wp = ctx->wp; 1695 u_int i; 1696 1697 if (ctx->bigger || 1698 (!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) || 1699 tty_fake_bce(tty, wp, 8) || 1700 !tty_term_has(tty->term, TTYC_CSR) || 1701 (!tty_term_has(tty->term, TTYC_RI) && 1702 !tty_term_has(tty->term, TTYC_RIN)) || 1703 wp->sx == 1 || 1704 wp->sy == 1) { 1705 tty_redraw_region(tty, ctx); 1706 return; 1707 } 1708 1709 tty_default_attributes(tty, wp, ctx->bg); 1710 1711 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1712 tty_margin_pane(tty, ctx); 1713 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper); 1714 1715 if (tty_term_has(tty->term, TTYC_RIN)) 1716 tty_putcode1(tty, TTYC_RIN, ctx->num); 1717 else { 1718 for (i = 0; i < ctx->num; i++) 1719 tty_putcode(tty, TTYC_RI); 1720 } 1721 } 1722 1723 void 1724 tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx) 1725 { 1726 struct window_pane *wp = ctx->wp; 1727 u_int px, py, nx, ny; 1728 1729 tty_default_attributes(tty, wp, ctx->bg); 1730 1731 tty_region_pane(tty, ctx, 0, screen_size_y(wp->screen) - 1); 1732 tty_margin_off(tty); 1733 1734 px = 0; 1735 nx = screen_size_x(wp->screen); 1736 py = ctx->ocy + 1; 1737 ny = screen_size_y(wp->screen) - ctx->ocy - 1; 1738 1739 tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg); 1740 1741 px = ctx->ocx; 1742 nx = screen_size_x(wp->screen) - ctx->ocx; 1743 py = ctx->ocy; 1744 1745 tty_clear_pane_line(tty, ctx, py, px, nx, ctx->bg); 1746 } 1747 1748 void 1749 tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx) 1750 { 1751 struct window_pane *wp = ctx->wp; 1752 u_int px, py, nx, ny; 1753 1754 tty_default_attributes(tty, wp, ctx->bg); 1755 1756 tty_region_pane(tty, ctx, 0, screen_size_y(wp->screen) - 1); 1757 tty_margin_off(tty); 1758 1759 px = 0; 1760 nx = screen_size_x(wp->screen); 1761 py = 0; 1762 ny = ctx->ocy; 1763 1764 tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg); 1765 1766 px = 0; 1767 nx = ctx->ocx + 1; 1768 py = ctx->ocy; 1769 1770 tty_clear_pane_line(tty, ctx, py, px, nx, ctx->bg); 1771 } 1772 1773 void 1774 tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx) 1775 { 1776 struct window_pane *wp = ctx->wp; 1777 u_int px, py, nx, ny; 1778 1779 tty_default_attributes(tty, wp, ctx->bg); 1780 1781 tty_region_pane(tty, ctx, 0, screen_size_y(wp->screen) - 1); 1782 tty_margin_off(tty); 1783 1784 px = 0; 1785 nx = screen_size_x(wp->screen); 1786 py = 0; 1787 ny = screen_size_y(wp->screen); 1788 1789 tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg); 1790 } 1791 1792 void 1793 tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx) 1794 { 1795 struct window_pane *wp = ctx->wp; 1796 struct screen *s = wp->screen; 1797 u_int i, j; 1798 1799 if (ctx->bigger) { 1800 wp->flags |= PANE_REDRAW; 1801 return; 1802 } 1803 1804 tty_attributes(tty, &grid_default_cell, wp); 1805 1806 tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1); 1807 tty_margin_off(tty); 1808 1809 for (j = 0; j < screen_size_y(s); j++) { 1810 tty_cursor_pane(tty, ctx, 0, j); 1811 for (i = 0; i < screen_size_x(s); i++) 1812 tty_putc(tty, 'E'); 1813 } 1814 } 1815 1816 void 1817 tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx) 1818 { 1819 if (!tty_is_visible(tty, ctx, ctx->ocx, ctx->ocy, 1, 1)) 1820 return; 1821 1822 if (ctx->xoff + ctx->ocx - ctx->ox > tty->sx - 1 && 1823 ctx->ocy == ctx->orlower && 1824 tty_pane_full_width(tty, ctx)) 1825 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1826 1827 tty_margin_off(tty); 1828 tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy); 1829 1830 tty_cell(tty, ctx->cell, ctx->wp); 1831 } 1832 1833 void 1834 tty_cmd_cells(struct tty *tty, const struct tty_ctx *ctx) 1835 { 1836 struct window_pane *wp = ctx->wp; 1837 1838 if (!tty_is_visible(tty, ctx, ctx->ocx, ctx->ocy, ctx->num, 1)) 1839 return; 1840 1841 if (ctx->bigger && 1842 (ctx->xoff + ctx->ocx < ctx->ox || 1843 ctx->xoff + ctx->ocx + ctx->num > ctx->ox + ctx->sx)) { 1844 if (!ctx->wrapped || 1845 !tty_pane_full_width(tty, ctx) || 1846 (tty->term->flags & TERM_NOXENL) || 1847 ctx->xoff + ctx->ocx != 0 || 1848 ctx->yoff + ctx->ocy != tty->cy + 1 || 1849 tty->cx < tty->sx || 1850 tty->cy == tty->rlower) 1851 tty_draw_pane(tty, ctx, ctx->ocy); 1852 else 1853 wp->flags |= PANE_REDRAW; 1854 return; 1855 } 1856 1857 tty_margin_off(tty); 1858 tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy); 1859 1860 tty_attributes(tty, ctx->cell, ctx->wp); 1861 tty_putn(tty, ctx->ptr, ctx->num, ctx->num); 1862 } 1863 1864 void 1865 tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx) 1866 { 1867 char *buf; 1868 size_t off; 1869 1870 if (!tty_term_has(tty->term, TTYC_MS)) 1871 return; 1872 1873 off = 4 * ((ctx->num + 2) / 3) + 1; /* storage for base64 */ 1874 buf = xmalloc(off); 1875 1876 b64_ntop(ctx->ptr, ctx->num, buf, off); 1877 tty_putcode_ptr2(tty, TTYC_MS, "", buf); 1878 1879 free(buf); 1880 } 1881 1882 void 1883 tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx) 1884 { 1885 tty_add(tty, ctx->ptr, ctx->num); 1886 tty_invalidate(tty); 1887 } 1888 1889 static void 1890 tty_cell(struct tty *tty, const struct grid_cell *gc, struct window_pane *wp) 1891 { 1892 const struct grid_cell *gcp; 1893 1894 /* Skip last character if terminal is stupid. */ 1895 if ((tty->term->flags & TERM_NOXENL) && 1896 tty->cy == tty->sy - 1 && 1897 tty->cx == tty->sx - 1) 1898 return; 1899 1900 /* If this is a padding character, do nothing. */ 1901 if (gc->flags & GRID_FLAG_PADDING) 1902 return; 1903 1904 /* Set the attributes. */ 1905 tty_attributes(tty, gc, wp); 1906 1907 /* Get the cell and if ASCII write with putc to do ACS translation. */ 1908 gcp = tty_check_codeset(tty, gc); 1909 if (gcp->data.size == 1) { 1910 if (*gcp->data.data < 0x20 || *gcp->data.data == 0x7f) 1911 return; 1912 tty_putc(tty, *gcp->data.data); 1913 return; 1914 } 1915 1916 /* Write the data. */ 1917 tty_putn(tty, gcp->data.data, gcp->data.size, gcp->data.width); 1918 } 1919 1920 void 1921 tty_reset(struct tty *tty) 1922 { 1923 struct grid_cell *gc = &tty->cell; 1924 1925 if (!grid_cells_equal(gc, &grid_default_cell)) { 1926 if ((gc->attr & GRID_ATTR_CHARSET) && tty_acs_needed(tty)) 1927 tty_putcode(tty, TTYC_RMACS); 1928 tty_putcode(tty, TTYC_SGR0); 1929 memcpy(gc, &grid_default_cell, sizeof *gc); 1930 } 1931 1932 memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell); 1933 tty->last_wp = -1; 1934 } 1935 1936 static void 1937 tty_invalidate(struct tty *tty) 1938 { 1939 memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell); 1940 1941 memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell); 1942 tty->last_wp = -1; 1943 1944 tty->cx = tty->cy = UINT_MAX; 1945 1946 tty->rupper = tty->rleft = UINT_MAX; 1947 tty->rlower = tty->rright = UINT_MAX; 1948 1949 if (tty->flags & TTY_STARTED) { 1950 if (tty_use_margin(tty)) 1951 tty_puts(tty, "\033[?69h"); /* DECLRMM */ 1952 tty_putcode(tty, TTYC_SGR0); 1953 1954 tty->mode = ALL_MODES; 1955 tty_update_mode(tty, MODE_CURSOR, NULL); 1956 1957 tty_cursor(tty, 0, 0); 1958 tty_region_off(tty); 1959 tty_margin_off(tty); 1960 } else 1961 tty->mode = MODE_CURSOR; 1962 } 1963 1964 /* Turn off margin. */ 1965 void 1966 tty_region_off(struct tty *tty) 1967 { 1968 tty_region(tty, 0, tty->sy - 1); 1969 } 1970 1971 /* Set region inside pane. */ 1972 static void 1973 tty_region_pane(struct tty *tty, const struct tty_ctx *ctx, u_int rupper, 1974 u_int rlower) 1975 { 1976 tty_region(tty, ctx->yoff + rupper - ctx->oy, 1977 ctx->yoff + rlower - ctx->oy); 1978 } 1979 1980 /* Set region at absolute position. */ 1981 static void 1982 tty_region(struct tty *tty, u_int rupper, u_int rlower) 1983 { 1984 if (tty->rlower == rlower && tty->rupper == rupper) 1985 return; 1986 if (!tty_term_has(tty->term, TTYC_CSR)) 1987 return; 1988 1989 tty->rupper = rupper; 1990 tty->rlower = rlower; 1991 1992 /* 1993 * Some terminals (such as PuTTY) do not correctly reset the cursor to 1994 * 0,0 if it is beyond the last column (they do not reset their wrap 1995 * flag so further output causes a line feed). As a workaround, do an 1996 * explicit move to 0 first. 1997 */ 1998 if (tty->cx >= tty->sx) 1999 tty_cursor(tty, 0, tty->cy); 2000 2001 tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower); 2002 tty->cx = tty->cy = UINT_MAX; 2003 } 2004 2005 /* Turn off margin. */ 2006 void 2007 tty_margin_off(struct tty *tty) 2008 { 2009 tty_margin(tty, 0, tty->sx - 1); 2010 } 2011 2012 /* Set margin inside pane. */ 2013 static void 2014 tty_margin_pane(struct tty *tty, const struct tty_ctx *ctx) 2015 { 2016 tty_margin(tty, ctx->xoff - ctx->ox, 2017 ctx->xoff + ctx->wp->sx - 1 - ctx->ox); 2018 } 2019 2020 /* Set margin at absolute position. */ 2021 static void 2022 tty_margin(struct tty *tty, u_int rleft, u_int rright) 2023 { 2024 char s[64]; 2025 2026 if (!tty_use_margin(tty)) 2027 return; 2028 if (tty->rleft == rleft && tty->rright == rright) 2029 return; 2030 2031 tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower); 2032 2033 tty->rleft = rleft; 2034 tty->rright = rright; 2035 2036 if (rleft == 0 && rright == tty->sx - 1) 2037 snprintf(s, sizeof s, "\033[s"); 2038 else 2039 snprintf(s, sizeof s, "\033[%u;%us", rleft + 1, rright + 1); 2040 tty_puts(tty, s); 2041 tty->cx = tty->cy = UINT_MAX; 2042 } 2043 2044 /* 2045 * Move the cursor, unless it would wrap itself when the next character is 2046 * printed. 2047 */ 2048 static void 2049 tty_cursor_pane_unless_wrap(struct tty *tty, const struct tty_ctx *ctx, 2050 u_int cx, u_int cy) 2051 { 2052 if (!ctx->wrapped || 2053 !tty_pane_full_width(tty, ctx) || 2054 (tty->term->flags & TERM_NOXENL) || 2055 ctx->xoff + cx != 0 || 2056 ctx->yoff + cy != tty->cy + 1 || 2057 tty->cx < tty->sx || 2058 tty->cy == tty->rlower) 2059 tty_cursor_pane(tty, ctx, cx, cy); 2060 else 2061 log_debug("%s: will wrap at %u,%u", __func__, tty->cx, tty->cy); 2062 } 2063 2064 /* Move cursor inside pane. */ 2065 static void 2066 tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy) 2067 { 2068 tty_cursor(tty, ctx->xoff + cx - ctx->ox, ctx->yoff + cy - ctx->oy); 2069 } 2070 2071 /* Move cursor to absolute position. */ 2072 void 2073 tty_cursor(struct tty *tty, u_int cx, u_int cy) 2074 { 2075 struct tty_term *term = tty->term; 2076 u_int thisx, thisy; 2077 int change; 2078 2079 if (cx > tty->sx - 1) 2080 cx = tty->sx - 1; 2081 2082 thisx = tty->cx; 2083 thisy = tty->cy; 2084 2085 /* No change. */ 2086 if (cx == thisx && cy == thisy) 2087 return; 2088 2089 /* Very end of the line, just use absolute movement. */ 2090 if (thisx > tty->sx - 1) 2091 goto absolute; 2092 2093 /* Move to home position (0, 0). */ 2094 if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) { 2095 tty_putcode(tty, TTYC_HOME); 2096 goto out; 2097 } 2098 2099 /* Zero on the next line. */ 2100 if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower && 2101 (!tty_use_margin(tty) || tty->rleft == 0)) { 2102 tty_putc(tty, '\r'); 2103 tty_putc(tty, '\n'); 2104 goto out; 2105 } 2106 2107 /* Moving column or row. */ 2108 if (cy == thisy) { 2109 /* 2110 * Moving column only, row staying the same. 2111 */ 2112 2113 /* To left edge. */ 2114 if (cx == 0 && (!tty_use_margin(tty) || tty->rleft == 0)) { 2115 tty_putc(tty, '\r'); 2116 goto out; 2117 } 2118 2119 /* One to the left. */ 2120 if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) { 2121 tty_putcode(tty, TTYC_CUB1); 2122 goto out; 2123 } 2124 2125 /* One to the right. */ 2126 if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) { 2127 tty_putcode(tty, TTYC_CUF1); 2128 goto out; 2129 } 2130 2131 /* Calculate difference. */ 2132 change = thisx - cx; /* +ve left, -ve right */ 2133 2134 /* 2135 * Use HPA if change is larger than absolute, otherwise move 2136 * the cursor with CUB/CUF. 2137 */ 2138 if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) { 2139 tty_putcode1(tty, TTYC_HPA, cx); 2140 goto out; 2141 } else if (change > 0 && 2142 tty_term_has(term, TTYC_CUB) && 2143 !tty_use_margin(tty)) { 2144 if (change == 2 && tty_term_has(term, TTYC_CUB1)) { 2145 tty_putcode(tty, TTYC_CUB1); 2146 tty_putcode(tty, TTYC_CUB1); 2147 goto out; 2148 } 2149 tty_putcode1(tty, TTYC_CUB, change); 2150 goto out; 2151 } else if (change < 0 && 2152 tty_term_has(term, TTYC_CUF) && 2153 !tty_use_margin(tty)) { 2154 tty_putcode1(tty, TTYC_CUF, -change); 2155 goto out; 2156 } 2157 } else if (cx == thisx) { 2158 /* 2159 * Moving row only, column staying the same. 2160 */ 2161 2162 /* One above. */ 2163 if (thisy != tty->rupper && 2164 cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) { 2165 tty_putcode(tty, TTYC_CUU1); 2166 goto out; 2167 } 2168 2169 /* One below. */ 2170 if (thisy != tty->rlower && 2171 cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) { 2172 tty_putcode(tty, TTYC_CUD1); 2173 goto out; 2174 } 2175 2176 /* Calculate difference. */ 2177 change = thisy - cy; /* +ve up, -ve down */ 2178 2179 /* 2180 * Try to use VPA if change is larger than absolute or if this 2181 * change would cross the scroll region, otherwise use CUU/CUD. 2182 */ 2183 if ((u_int) abs(change) > cy || 2184 (change < 0 && cy - change > tty->rlower) || 2185 (change > 0 && cy - change < tty->rupper)) { 2186 if (tty_term_has(term, TTYC_VPA)) { 2187 tty_putcode1(tty, TTYC_VPA, cy); 2188 goto out; 2189 } 2190 } else if (change > 0 && tty_term_has(term, TTYC_CUU)) { 2191 tty_putcode1(tty, TTYC_CUU, change); 2192 goto out; 2193 } else if (change < 0 && tty_term_has(term, TTYC_CUD)) { 2194 tty_putcode1(tty, TTYC_CUD, -change); 2195 goto out; 2196 } 2197 } 2198 2199 absolute: 2200 /* Absolute movement. */ 2201 tty_putcode2(tty, TTYC_CUP, cy, cx); 2202 2203 out: 2204 tty->cx = cx; 2205 tty->cy = cy; 2206 } 2207 2208 void 2209 tty_attributes(struct tty *tty, const struct grid_cell *gc, 2210 struct window_pane *wp) 2211 { 2212 struct grid_cell *tc = &tty->cell, gc2; 2213 int changed; 2214 2215 /* Ignore cell if it is the same as the last one. */ 2216 if (wp != NULL && 2217 (int)wp->id == tty->last_wp && 2218 ~(wp->flags & PANE_STYLECHANGED) && 2219 gc->attr == tty->last_cell.attr && 2220 gc->fg == tty->last_cell.fg && 2221 gc->bg == tty->last_cell.bg && 2222 gc->us == tty->last_cell.us) 2223 return; 2224 tty->last_wp = (wp != NULL ? (int)wp->id : -1); 2225 memcpy(&tty->last_cell, gc, sizeof tty->last_cell); 2226 2227 /* Copy cell and update default colours. */ 2228 memcpy(&gc2, gc, sizeof gc2); 2229 if (wp != NULL) 2230 tty_default_colours(&gc2, wp); 2231 2232 /* 2233 * If no setab, try to use the reverse attribute as a best-effort for a 2234 * non-default background. This is a bit of a hack but it doesn't do 2235 * any serious harm and makes a couple of applications happier. 2236 */ 2237 if (!tty_term_has(tty->term, TTYC_SETAB)) { 2238 if (gc2.attr & GRID_ATTR_REVERSE) { 2239 if (gc2.fg != 7 && !COLOUR_DEFAULT(gc2.fg)) 2240 gc2.attr &= ~GRID_ATTR_REVERSE; 2241 } else { 2242 if (gc2.bg != 0 && !COLOUR_DEFAULT(gc2.bg)) 2243 gc2.attr |= GRID_ATTR_REVERSE; 2244 } 2245 } 2246 2247 /* Fix up the colours if necessary. */ 2248 tty_check_fg(tty, wp, &gc2); 2249 tty_check_bg(tty, wp, &gc2); 2250 tty_check_us(tty, wp, &gc2); 2251 2252 /* 2253 * If any bits are being cleared or the underline colour is now default, 2254 * reset everything. 2255 */ 2256 if ((tc->attr & ~gc2.attr) || (tc->us != gc2.us && gc2.us == 0)) 2257 tty_reset(tty); 2258 2259 /* 2260 * Set the colours. This may call tty_reset() (so it comes next) and 2261 * may add to (NOT remove) the desired attributes. 2262 */ 2263 tty_colours(tty, &gc2); 2264 2265 /* Filter out attribute bits already set. */ 2266 changed = gc2.attr & ~tc->attr; 2267 tc->attr = gc2.attr; 2268 2269 /* Set the attributes. */ 2270 if (changed & GRID_ATTR_BRIGHT) 2271 tty_putcode(tty, TTYC_BOLD); 2272 if (changed & GRID_ATTR_DIM) 2273 tty_putcode(tty, TTYC_DIM); 2274 if (changed & GRID_ATTR_ITALICS) 2275 tty_set_italics(tty); 2276 if (changed & GRID_ATTR_ALL_UNDERSCORE) { 2277 if ((changed & GRID_ATTR_UNDERSCORE) || 2278 !tty_term_has(tty->term, TTYC_SMULX)) 2279 tty_putcode(tty, TTYC_SMUL); 2280 else if (changed & GRID_ATTR_UNDERSCORE_2) 2281 tty_putcode1(tty, TTYC_SMULX, 2); 2282 else if (changed & GRID_ATTR_UNDERSCORE_3) 2283 tty_putcode1(tty, TTYC_SMULX, 3); 2284 else if (changed & GRID_ATTR_UNDERSCORE_4) 2285 tty_putcode1(tty, TTYC_SMULX, 4); 2286 else if (changed & GRID_ATTR_UNDERSCORE_5) 2287 tty_putcode1(tty, TTYC_SMULX, 5); 2288 } 2289 if (changed & GRID_ATTR_BLINK) 2290 tty_putcode(tty, TTYC_BLINK); 2291 if (changed & GRID_ATTR_REVERSE) { 2292 if (tty_term_has(tty->term, TTYC_REV)) 2293 tty_putcode(tty, TTYC_REV); 2294 else if (tty_term_has(tty->term, TTYC_SMSO)) 2295 tty_putcode(tty, TTYC_SMSO); 2296 } 2297 if (changed & GRID_ATTR_HIDDEN) 2298 tty_putcode(tty, TTYC_INVIS); 2299 if (changed & GRID_ATTR_STRIKETHROUGH) 2300 tty_putcode(tty, TTYC_SMXX); 2301 if (changed & GRID_ATTR_OVERLINE) 2302 tty_putcode(tty, TTYC_SMOL); 2303 if ((changed & GRID_ATTR_CHARSET) && tty_acs_needed(tty)) 2304 tty_putcode(tty, TTYC_SMACS); 2305 } 2306 2307 static void 2308 tty_colours(struct tty *tty, const struct grid_cell *gc) 2309 { 2310 struct grid_cell *tc = &tty->cell; 2311 int have_ax; 2312 2313 /* No changes? Nothing is necessary. */ 2314 if (gc->fg == tc->fg && gc->bg == tc->bg && gc->us == tc->us) 2315 return; 2316 2317 /* 2318 * Is either the default colour? This is handled specially because the 2319 * best solution might be to reset both colours to default, in which 2320 * case if only one is default need to fall onward to set the other 2321 * colour. 2322 */ 2323 if (COLOUR_DEFAULT(gc->fg) || COLOUR_DEFAULT(gc->bg)) { 2324 /* 2325 * If don't have AX but do have op, send sgr0 (op can't 2326 * actually be used because it is sometimes the same as sgr0 2327 * and sometimes isn't). This resets both colours to default. 2328 * 2329 * Otherwise, try to set the default colour only as needed. 2330 */ 2331 have_ax = tty_term_flag(tty->term, TTYC_AX); 2332 if (!have_ax && tty_term_has(tty->term, TTYC_OP)) 2333 tty_reset(tty); 2334 else { 2335 if (COLOUR_DEFAULT(gc->fg) && !COLOUR_DEFAULT(tc->fg)) { 2336 if (have_ax) 2337 tty_puts(tty, "\033[39m"); 2338 else if (tc->fg != 7) 2339 tty_putcode1(tty, TTYC_SETAF, 7); 2340 tc->fg = gc->fg; 2341 } 2342 if (COLOUR_DEFAULT(gc->bg) && !COLOUR_DEFAULT(tc->bg)) { 2343 if (have_ax) 2344 tty_puts(tty, "\033[49m"); 2345 else if (tc->bg != 0) 2346 tty_putcode1(tty, TTYC_SETAB, 0); 2347 tc->bg = gc->bg; 2348 } 2349 } 2350 } 2351 2352 /* Set the foreground colour. */ 2353 if (!COLOUR_DEFAULT(gc->fg) && gc->fg != tc->fg) 2354 tty_colours_fg(tty, gc); 2355 2356 /* 2357 * Set the background colour. This must come after the foreground as 2358 * tty_colour_fg() can call tty_reset(). 2359 */ 2360 if (!COLOUR_DEFAULT(gc->bg) && gc->bg != tc->bg) 2361 tty_colours_bg(tty, gc); 2362 2363 /* Set the underscore color. */ 2364 if (gc->us != tc->us) 2365 tty_colours_us(tty, gc); 2366 } 2367 2368 static void 2369 tty_check_fg(struct tty *tty, struct window_pane *wp, struct grid_cell *gc) 2370 { 2371 u_char r, g, b; 2372 u_int colours; 2373 int c; 2374 2375 /* 2376 * Perform substitution if this pane has a palette. If the bright 2377 * attribute is set, use the bright entry in the palette by changing to 2378 * the aixterm colour. 2379 */ 2380 if (~gc->flags & GRID_FLAG_NOPALETTE) { 2381 c = gc->fg; 2382 if (c < 8 && gc->attr & GRID_ATTR_BRIGHT) 2383 c += 90; 2384 if ((c = window_pane_get_palette(wp, c)) != -1) 2385 gc->fg = c; 2386 } 2387 2388 /* Is this a 24-bit colour? */ 2389 if (gc->fg & COLOUR_FLAG_RGB) { 2390 /* Not a 24-bit terminal? Translate to 256-colour palette. */ 2391 if ((tty->term->flags|tty->term_flags) & TERM_RGBCOLOURS) 2392 return; 2393 colour_split_rgb(gc->fg, &r, &g, &b); 2394 gc->fg = colour_find_rgb(r, g, b); 2395 } 2396 2397 /* How many colours does this terminal have? */ 2398 if ((tty->term->flags|tty->term_flags) & TERM_256COLOURS) 2399 colours = 256; 2400 else 2401 colours = tty_term_number(tty->term, TTYC_COLORS); 2402 2403 /* Is this a 256-colour colour? */ 2404 if (gc->fg & COLOUR_FLAG_256) { 2405 /* And not a 256 colour mode? */ 2406 if (colours != 256) { 2407 gc->fg = colour_256to16(gc->fg); 2408 if (gc->fg & 8) { 2409 gc->fg &= 7; 2410 if (colours >= 16) 2411 gc->fg += 90; 2412 } 2413 } 2414 return; 2415 } 2416 2417 /* Is this an aixterm colour? */ 2418 if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) { 2419 gc->fg -= 90; 2420 gc->attr |= GRID_ATTR_BRIGHT; 2421 } 2422 } 2423 2424 static void 2425 tty_check_bg(struct tty *tty, struct window_pane *wp, struct grid_cell *gc) 2426 { 2427 u_char r, g, b; 2428 u_int colours; 2429 int c; 2430 2431 /* Perform substitution if this pane has a palette. */ 2432 if (~gc->flags & GRID_FLAG_NOPALETTE) { 2433 if ((c = window_pane_get_palette(wp, gc->bg)) != -1) 2434 gc->bg = c; 2435 } 2436 2437 /* Is this a 24-bit colour? */ 2438 if (gc->bg & COLOUR_FLAG_RGB) { 2439 /* Not a 24-bit terminal? Translate to 256-colour palette. */ 2440 if ((tty->term->flags|tty->term_flags) & TERM_RGBCOLOURS) 2441 return; 2442 colour_split_rgb(gc->bg, &r, &g, &b); 2443 gc->bg = colour_find_rgb(r, g, b); 2444 } 2445 2446 /* How many colours does this terminal have? */ 2447 if ((tty->term->flags|tty->term_flags) & TERM_256COLOURS) 2448 colours = 256; 2449 else 2450 colours = tty_term_number(tty->term, TTYC_COLORS); 2451 2452 /* Is this a 256-colour colour? */ 2453 if (gc->bg & COLOUR_FLAG_256) { 2454 /* 2455 * And not a 256 colour mode? Translate to 16-colour 2456 * palette. Bold background doesn't exist portably, so just 2457 * discard the bold bit if set. 2458 */ 2459 if (colours != 256) { 2460 gc->bg = colour_256to16(gc->bg); 2461 if (gc->bg & 8) { 2462 gc->bg &= 7; 2463 if (colours >= 16) 2464 gc->bg += 90; 2465 } 2466 } 2467 return; 2468 } 2469 2470 /* Is this an aixterm colour? */ 2471 if (gc->bg >= 90 && gc->bg <= 97 && colours < 16) 2472 gc->bg -= 90; 2473 } 2474 2475 static void 2476 tty_check_us(__unused struct tty *tty, struct window_pane *wp, 2477 struct grid_cell *gc) 2478 { 2479 int c; 2480 2481 /* Perform substitution if this pane has a palette. */ 2482 if (~gc->flags & GRID_FLAG_NOPALETTE) { 2483 if ((c = window_pane_get_palette(wp, gc->us)) != -1) 2484 gc->us = c; 2485 } 2486 2487 /* Underscore colour is set as RGB so convert a 256 colour to RGB. */ 2488 if (gc->us & COLOUR_FLAG_256) 2489 gc->us = colour_256toRGB (gc->us); 2490 } 2491 2492 static void 2493 tty_colours_fg(struct tty *tty, const struct grid_cell *gc) 2494 { 2495 struct grid_cell *tc = &tty->cell; 2496 char s[32]; 2497 2498 /* Is this a 24-bit or 256-colour colour? */ 2499 if (gc->fg & COLOUR_FLAG_RGB || gc->fg & COLOUR_FLAG_256) { 2500 if (tty_try_colour(tty, gc->fg, "38") == 0) 2501 goto save_fg; 2502 /* Should not get here, already converted in tty_check_fg. */ 2503 return; 2504 } 2505 2506 /* Is this an aixterm bright colour? */ 2507 if (gc->fg >= 90 && gc->fg <= 97) { 2508 if (tty->term_flags & TERM_256COLOURS) { 2509 xsnprintf(s, sizeof s, "\033[%dm", gc->fg); 2510 tty_puts(tty, s); 2511 } else 2512 tty_putcode1(tty, TTYC_SETAF, gc->fg - 90 + 8); 2513 goto save_fg; 2514 } 2515 2516 /* Otherwise set the foreground colour. */ 2517 tty_putcode1(tty, TTYC_SETAF, gc->fg); 2518 2519 save_fg: 2520 /* Save the new values in the terminal current cell. */ 2521 tc->fg = gc->fg; 2522 } 2523 2524 static void 2525 tty_colours_bg(struct tty *tty, const struct grid_cell *gc) 2526 { 2527 struct grid_cell *tc = &tty->cell; 2528 char s[32]; 2529 2530 /* Is this a 24-bit or 256-colour colour? */ 2531 if (gc->bg & COLOUR_FLAG_RGB || gc->bg & COLOUR_FLAG_256) { 2532 if (tty_try_colour(tty, gc->bg, "48") == 0) 2533 goto save_bg; 2534 /* Should not get here, already converted in tty_check_bg. */ 2535 return; 2536 } 2537 2538 /* Is this an aixterm bright colour? */ 2539 if (gc->bg >= 90 && gc->bg <= 97) { 2540 if (tty->term_flags & TERM_256COLOURS) { 2541 xsnprintf(s, sizeof s, "\033[%dm", gc->bg + 10); 2542 tty_puts(tty, s); 2543 } else 2544 tty_putcode1(tty, TTYC_SETAB, gc->bg - 90 + 8); 2545 goto save_bg; 2546 } 2547 2548 /* Otherwise set the background colour. */ 2549 tty_putcode1(tty, TTYC_SETAB, gc->bg); 2550 2551 save_bg: 2552 /* Save the new values in the terminal current cell. */ 2553 tc->bg = gc->bg; 2554 } 2555 2556 static void 2557 tty_colours_us(struct tty *tty, const struct grid_cell *gc) 2558 { 2559 struct grid_cell *tc = &tty->cell; 2560 u_int c; 2561 u_char r, g, b; 2562 2563 /* Must be an RGB colour - this should never happen. */ 2564 if (~gc->us & COLOUR_FLAG_RGB) 2565 return; 2566 2567 /* 2568 * Setulc follows the ncurses(3) one argument "direct colour" 2569 * capability format. Calculate the colour value. 2570 */ 2571 colour_split_rgb(gc->us, &r, &g, &b); 2572 c = (65536 * r) + (256 * g) + b; 2573 2574 /* Write the colour. */ 2575 tty_putcode1(tty, TTYC_SETULC, c); 2576 2577 /* Save the new values in the terminal current cell. */ 2578 tc->us = gc->us; 2579 } 2580 2581 static int 2582 tty_try_colour(struct tty *tty, int colour, const char *type) 2583 { 2584 u_char r, g, b; 2585 char s[32]; 2586 2587 if (colour & COLOUR_FLAG_256) { 2588 /* 2589 * If the user has specified -2 to the client (meaning 2590 * TERM_256COLOURS is set), setaf and setab may not work (or 2591 * they may not want to use them), so send the usual sequence. 2592 * 2593 * Also if RGB is set, setaf and setab do not support the 256 2594 * colour palette so use the sequences directly there too. 2595 */ 2596 if ((tty->term_flags & TERM_256COLOURS) || 2597 tty_term_has(tty->term, TTYC_RGB)) 2598 goto fallback_256; 2599 2600 /* 2601 * If the terminfo entry has 256 colours and setaf and setab 2602 * exist, assume that they work correctly. 2603 */ 2604 if (tty->term->flags & TERM_256COLOURS) { 2605 if (*type == '3') { 2606 if (!tty_term_has(tty->term, TTYC_SETAF)) 2607 goto fallback_256; 2608 tty_putcode1(tty, TTYC_SETAF, colour & 0xff); 2609 } else { 2610 if (!tty_term_has(tty->term, TTYC_SETAB)) 2611 goto fallback_256; 2612 tty_putcode1(tty, TTYC_SETAB, colour & 0xff); 2613 } 2614 return (0); 2615 } 2616 goto fallback_256; 2617 } 2618 2619 if (colour & COLOUR_FLAG_RGB) { 2620 colour_split_rgb(colour & 0xffffff, &r, &g, &b); 2621 if (*type == '3') { 2622 if (!tty_term_has(tty->term, TTYC_SETRGBF)) 2623 goto fallback_rgb; 2624 tty_putcode3(tty, TTYC_SETRGBF, r, g, b); 2625 } else { 2626 if (!tty_term_has(tty->term, TTYC_SETRGBB)) 2627 goto fallback_rgb; 2628 tty_putcode3(tty, TTYC_SETRGBB, r, g, b); 2629 } 2630 return (0); 2631 } 2632 2633 return (-1); 2634 2635 fallback_256: 2636 xsnprintf(s, sizeof s, "\033[%s;5;%dm", type, colour & 0xff); 2637 log_debug("%s: 256 colour fallback: %s", tty->client->name, s); 2638 tty_puts(tty, s); 2639 return (0); 2640 2641 fallback_rgb: 2642 xsnprintf(s, sizeof s, "\033[%s;2;%d;%d;%dm", type, r, g, b); 2643 log_debug("%s: RGB colour fallback: %s", tty->client->name, s); 2644 tty_puts(tty, s); 2645 return (0); 2646 } 2647 2648 static void 2649 tty_default_colours(struct grid_cell *gc, struct window_pane *wp) 2650 { 2651 struct options *oo = wp->options; 2652 struct style *style, *active_style; 2653 int c; 2654 2655 if (wp->flags & PANE_STYLECHANGED) { 2656 wp->flags &= ~PANE_STYLECHANGED; 2657 2658 active_style = options_get_style(oo, "window-active-style"); 2659 style = options_get_style(oo, "window-style"); 2660 2661 style_copy(&wp->cached_active_style, active_style); 2662 style_copy(&wp->cached_style, style); 2663 } else { 2664 active_style = &wp->cached_active_style; 2665 style = &wp->cached_style; 2666 } 2667 2668 if (gc->fg == 8) { 2669 if (wp == wp->window->active && active_style->gc.fg != 8) 2670 gc->fg = active_style->gc.fg; 2671 else 2672 gc->fg = style->gc.fg; 2673 2674 if (gc->fg != 8) { 2675 c = window_pane_get_palette(wp, gc->fg); 2676 if (c != -1) 2677 gc->fg = c; 2678 } 2679 } 2680 2681 if (gc->bg == 8) { 2682 if (wp == wp->window->active && active_style->gc.bg != 8) 2683 gc->bg = active_style->gc.bg; 2684 else 2685 gc->bg = style->gc.bg; 2686 2687 if (gc->bg != 8) { 2688 c = window_pane_get_palette(wp, gc->bg); 2689 if (c != -1) 2690 gc->bg = c; 2691 } 2692 } 2693 } 2694 2695 static void 2696 tty_default_attributes(struct tty *tty, struct window_pane *wp, u_int bg) 2697 { 2698 static struct grid_cell gc; 2699 2700 memcpy(&gc, &grid_default_cell, sizeof gc); 2701 gc.bg = bg; 2702 tty_attributes(tty, &gc, wp); 2703 } 2704