1 /* $OpenBSD$ */ 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_type == TTY_VT420) 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; 118 119 tty->term_flags = 0; 120 tty->term_type = TTY_UNKNOWN; 121 122 return (0); 123 } 124 125 void 126 tty_resize(struct tty *tty) 127 { 128 struct client *c = tty->client; 129 struct winsize ws; 130 u_int sx, sy; 131 132 if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) { 133 sx = ws.ws_col; 134 if (sx == 0) 135 sx = 80; 136 sy = ws.ws_row; 137 if (sy == 0) 138 sy = 24; 139 } else { 140 sx = 80; 141 sy = 24; 142 } 143 log_debug("%s: %s now %ux%u", __func__, c->name, sx, sy); 144 tty_set_size(tty, sx, sy); 145 tty_invalidate(tty); 146 } 147 148 void 149 tty_set_size(struct tty *tty, u_int sx, u_int sy) 150 { 151 tty->sx = sx; 152 tty->sy = sy; 153 } 154 155 static void 156 tty_read_callback(__unused int fd, __unused short events, void *data) 157 { 158 struct tty *tty = data; 159 struct client *c = tty->client; 160 size_t size = EVBUFFER_LENGTH(tty->in); 161 int nread; 162 163 nread = evbuffer_read(tty->in, tty->fd, -1); 164 if (nread == 0 || nread == -1) { 165 event_del(&tty->event_in); 166 server_client_lost(tty->client); 167 return; 168 } 169 log_debug("%s: read %d bytes (already %zu)", c->name, nread, size); 170 171 while (tty_keys_next(tty)) 172 ; 173 } 174 175 static void 176 tty_timer_callback(__unused int fd, __unused short events, void *data) 177 { 178 struct tty *tty = data; 179 struct client *c = tty->client; 180 struct timeval tv = { .tv_usec = TTY_BLOCK_INTERVAL }; 181 182 log_debug("%s: %zu discarded", c->name, tty->discarded); 183 184 c->flags |= CLIENT_ALLREDRAWFLAGS; 185 c->discarded += tty->discarded; 186 187 if (tty->discarded < TTY_BLOCK_STOP(tty)) { 188 tty->flags &= ~TTY_BLOCK; 189 tty_invalidate(tty); 190 return; 191 } 192 tty->discarded = 0; 193 evtimer_add(&tty->timer, &tv); 194 } 195 196 static int 197 tty_block_maybe(struct tty *tty) 198 { 199 struct client *c = tty->client; 200 size_t size = EVBUFFER_LENGTH(tty->out); 201 struct timeval tv = { .tv_usec = TTY_BLOCK_INTERVAL }; 202 203 if (size < TTY_BLOCK_START(tty)) 204 return (0); 205 206 if (tty->flags & TTY_BLOCK) 207 return (1); 208 tty->flags |= TTY_BLOCK; 209 210 log_debug("%s: can't keep up, %zu discarded", c->name, size); 211 212 evbuffer_drain(tty->out, size); 213 c->discarded += size; 214 215 tty->discarded = 0; 216 evtimer_add(&tty->timer, &tv); 217 return (1); 218 } 219 220 static void 221 tty_write_callback(__unused int fd, __unused short events, void *data) 222 { 223 struct tty *tty = data; 224 struct client *c = tty->client; 225 size_t size = EVBUFFER_LENGTH(tty->out); 226 int nwrite; 227 228 nwrite = evbuffer_write(tty->out, tty->fd); 229 if (nwrite == -1) 230 return; 231 log_debug("%s: wrote %d bytes (of %zu)", c->name, nwrite, size); 232 233 if (c->redraw > 0) { 234 if ((size_t)nwrite >= c->redraw) 235 c->redraw = 0; 236 else 237 c->redraw -= nwrite; 238 log_debug("%s: waiting for redraw, %zu bytes left", c->name, 239 c->redraw); 240 } else if (tty_block_maybe(tty)) 241 return; 242 243 if (EVBUFFER_LENGTH(tty->out) != 0) 244 event_add(&tty->event_out, NULL); 245 } 246 247 int 248 tty_open(struct tty *tty, char **cause) 249 { 250 tty->term = tty_term_find(tty->term_name, tty->fd, cause); 251 if (tty->term == NULL) { 252 tty_close(tty); 253 return (-1); 254 } 255 tty->flags |= TTY_OPENED; 256 257 tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_BLOCK|TTY_TIMER); 258 259 event_set(&tty->event_in, tty->fd, EV_PERSIST|EV_READ, 260 tty_read_callback, tty); 261 tty->in = evbuffer_new(); 262 if (tty->in == NULL) 263 fatal("out of memory"); 264 265 event_set(&tty->event_out, tty->fd, EV_WRITE, tty_write_callback, tty); 266 tty->out = evbuffer_new(); 267 if (tty->out == NULL) 268 fatal("out of memory"); 269 270 evtimer_set(&tty->timer, tty_timer_callback, tty); 271 272 tty_start_tty(tty); 273 274 tty_keys_build(tty); 275 276 return (0); 277 } 278 279 void 280 tty_start_tty(struct tty *tty) 281 { 282 struct client *c = tty->client; 283 struct termios tio; 284 285 if (tty->fd != -1 && tcgetattr(tty->fd, &tty->tio) == 0) { 286 setblocking(tty->fd, 0); 287 event_add(&tty->event_in, NULL); 288 289 memcpy(&tio, &tty->tio, sizeof tio); 290 tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP); 291 tio.c_iflag |= IGNBRK; 292 tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET); 293 tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL| 294 ECHOPRT|ECHOKE|ISIG); 295 tio.c_cc[VMIN] = 1; 296 tio.c_cc[VTIME] = 0; 297 if (tcsetattr(tty->fd, TCSANOW, &tio) == 0) 298 tcflush(tty->fd, TCIOFLUSH); 299 } 300 301 tty_putcode(tty, TTYC_SMCUP); 302 303 tty_putcode(tty, TTYC_SMKX); 304 tty_putcode(tty, TTYC_CLEAR); 305 306 if (tty_acs_needed(tty)) { 307 log_debug("%s: using capabilities for ACS", c->name); 308 tty_putcode(tty, TTYC_ENACS); 309 } else 310 log_debug("%s: using UTF-8 for ACS", c->name); 311 312 tty_putcode(tty, TTYC_CNORM); 313 if (tty_term_has(tty->term, TTYC_KMOUS)) 314 tty_puts(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l"); 315 316 if (tty_term_flag(tty->term, TTYC_XT)) { 317 if (options_get_number(global_options, "focus-events")) { 318 tty->flags |= TTY_FOCUS; 319 tty_puts(tty, "\033[?1004h"); 320 } 321 tty_puts(tty, "\033[c"); 322 } 323 324 tty->flags |= TTY_STARTED; 325 tty_invalidate(tty); 326 327 tty_force_cursor_colour(tty, ""); 328 329 tty->mouse_drag_flag = 0; 330 tty->mouse_drag_update = NULL; 331 tty->mouse_drag_release = NULL; 332 } 333 334 void 335 tty_stop_tty(struct tty *tty) 336 { 337 struct winsize ws; 338 339 if (!(tty->flags & TTY_STARTED)) 340 return; 341 tty->flags &= ~TTY_STARTED; 342 343 event_del(&tty->timer); 344 tty->flags &= ~TTY_BLOCK; 345 346 event_del(&tty->event_in); 347 event_del(&tty->event_out); 348 349 /* 350 * Be flexible about error handling and try not kill the server just 351 * because the fd is invalid. Things like ssh -t can easily leave us 352 * with a dead tty. 353 */ 354 if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1) 355 return; 356 if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1) 357 return; 358 359 tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1)); 360 if (tty_acs_needed(tty)) 361 tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS)); 362 tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0)); 363 tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX)); 364 tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR)); 365 if (tty_term_has(tty->term, TTYC_SS) && tty->cstyle != 0) { 366 if (tty_term_has(tty->term, TTYC_SE)) 367 tty_raw(tty, tty_term_string(tty->term, TTYC_SE)); 368 else 369 tty_raw(tty, tty_term_string1(tty->term, TTYC_SS, 0)); 370 } 371 if (tty->mode & MODE_BRACKETPASTE) 372 tty_raw(tty, "\033[?2004l"); 373 tty_raw(tty, tty_term_string(tty->term, TTYC_CR)); 374 375 tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM)); 376 if (tty_term_has(tty->term, TTYC_KMOUS)) 377 tty_raw(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l"); 378 379 if (tty_term_flag(tty->term, TTYC_XT)) { 380 if (tty->flags & TTY_FOCUS) { 381 tty->flags &= ~TTY_FOCUS; 382 tty_raw(tty, "\033[?1004l"); 383 } 384 } 385 386 if (tty_use_margin(tty)) 387 tty_raw(tty, "\033[?69l"); /* DECLRMM */ 388 tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP)); 389 390 setblocking(tty->fd, 1); 391 } 392 393 void 394 tty_close(struct tty *tty) 395 { 396 if (event_initialized(&tty->key_timer)) 397 evtimer_del(&tty->key_timer); 398 tty_stop_tty(tty); 399 400 if (tty->flags & TTY_OPENED) { 401 evbuffer_free(tty->in); 402 event_del(&tty->event_in); 403 evbuffer_free(tty->out); 404 event_del(&tty->event_out); 405 406 tty_term_free(tty->term); 407 tty_keys_free(tty); 408 409 tty->flags &= ~TTY_OPENED; 410 } 411 412 if (tty->fd != -1) { 413 close(tty->fd); 414 tty->fd = -1; 415 } 416 } 417 418 void 419 tty_free(struct tty *tty) 420 { 421 tty_close(tty); 422 423 free(tty->ccolour); 424 free(tty->term_name); 425 } 426 427 void 428 tty_set_type(struct tty *tty, int type) 429 { 430 tty->term_type = type; 431 432 if (tty_use_margin(tty)) 433 tty_puts(tty, "\033[?69h"); /* DECLRMM */ 434 } 435 436 void 437 tty_raw(struct tty *tty, const char *s) 438 { 439 ssize_t n, slen; 440 u_int i; 441 442 slen = strlen(s); 443 for (i = 0; i < 5; i++) { 444 n = write(tty->fd, s, slen); 445 if (n >= 0) { 446 s += n; 447 slen -= n; 448 if (slen == 0) 449 break; 450 } else if (n == -1 && errno != EAGAIN) 451 break; 452 usleep(100); 453 } 454 } 455 456 void 457 tty_putcode(struct tty *tty, enum tty_code_code code) 458 { 459 tty_puts(tty, tty_term_string(tty->term, code)); 460 } 461 462 void 463 tty_putcode1(struct tty *tty, enum tty_code_code code, int a) 464 { 465 if (a < 0) 466 return; 467 tty_puts(tty, tty_term_string1(tty->term, code, a)); 468 } 469 470 void 471 tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b) 472 { 473 if (a < 0 || b < 0) 474 return; 475 tty_puts(tty, tty_term_string2(tty->term, code, a, b)); 476 } 477 478 void 479 tty_putcode3(struct tty *tty, enum tty_code_code code, int a, int b, int c) 480 { 481 if (a < 0 || b < 0 || c < 0) 482 return; 483 tty_puts(tty, tty_term_string3(tty->term, code, a, b, c)); 484 } 485 486 void 487 tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a) 488 { 489 if (a != NULL) 490 tty_puts(tty, tty_term_ptr1(tty->term, code, a)); 491 } 492 493 void 494 tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a, 495 const void *b) 496 { 497 if (a != NULL && b != NULL) 498 tty_puts(tty, tty_term_ptr2(tty->term, code, a, b)); 499 } 500 501 static void 502 tty_add(struct tty *tty, const char *buf, size_t len) 503 { 504 struct client *c = tty->client; 505 506 if (tty->flags & TTY_BLOCK) { 507 tty->discarded += len; 508 return; 509 } 510 511 evbuffer_add(tty->out, buf, len); 512 log_debug("%s: %.*s", c->name, (int)len, buf); 513 c->written += len; 514 515 if (tty_log_fd != -1) 516 write(tty_log_fd, buf, len); 517 if (tty->flags & TTY_STARTED) 518 event_add(&tty->event_out, NULL); 519 } 520 521 void 522 tty_puts(struct tty *tty, const char *s) 523 { 524 if (*s != '\0') 525 tty_add(tty, s, strlen(s)); 526 } 527 528 void 529 tty_putc(struct tty *tty, u_char ch) 530 { 531 const char *acs; 532 533 if ((tty->term->flags & TERM_EARLYWRAP) && 534 ch >= 0x20 && ch != 0x7f && 535 tty->cy == tty->sy - 1 && 536 tty->cx + 1 >= tty->sx) 537 return; 538 539 if (tty->cell.attr & GRID_ATTR_CHARSET) { 540 acs = tty_acs_get(tty, ch); 541 if (acs != NULL) 542 tty_add(tty, acs, strlen(acs)); 543 else 544 tty_add(tty, (char *)&ch, 1); 545 } else 546 tty_add(tty, (char *)&ch, 1); 547 548 if (ch >= 0x20 && ch != 0x7f) { 549 if (tty->cx >= tty->sx) { 550 tty->cx = 1; 551 if (tty->cy != tty->rlower) 552 tty->cy++; 553 554 /* 555 * On !xenl terminals, force the cursor position to 556 * where we think it should be after a line wrap - this 557 * means it works on sensible terminals as well. 558 */ 559 if (tty->term->flags & TERM_EARLYWRAP) 560 tty_putcode2(tty, TTYC_CUP, tty->cy, tty->cx); 561 } else 562 tty->cx++; 563 } 564 } 565 566 void 567 tty_putn(struct tty *tty, const void *buf, size_t len, u_int width) 568 { 569 if ((tty->term->flags & TERM_EARLYWRAP) && 570 tty->cy == tty->sy - 1 && 571 tty->cx + len >= tty->sx) 572 len = tty->sx - tty->cx - 1; 573 574 tty_add(tty, buf, len); 575 if (tty->cx + width > tty->sx) { 576 tty->cx = (tty->cx + width) - tty->sx; 577 if (tty->cx <= tty->sx) 578 tty->cy++; 579 else 580 tty->cx = tty->cy = UINT_MAX; 581 } else 582 tty->cx += width; 583 } 584 585 static void 586 tty_set_italics(struct tty *tty) 587 { 588 const char *s; 589 590 if (tty_term_has(tty->term, TTYC_SITM)) { 591 s = options_get_string(global_options, "default-terminal"); 592 if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) { 593 tty_putcode(tty, TTYC_SITM); 594 return; 595 } 596 } 597 tty_putcode(tty, TTYC_SMSO); 598 } 599 600 void 601 tty_set_title(struct tty *tty, const char *title) 602 { 603 if (!tty_term_has(tty->term, TTYC_TSL) || 604 !tty_term_has(tty->term, TTYC_FSL)) 605 return; 606 607 tty_putcode(tty, TTYC_TSL); 608 tty_puts(tty, title); 609 tty_putcode(tty, TTYC_FSL); 610 } 611 612 static void 613 tty_force_cursor_colour(struct tty *tty, const char *ccolour) 614 { 615 if (*ccolour == '\0') 616 tty_putcode(tty, TTYC_CR); 617 else 618 tty_putcode_ptr1(tty, TTYC_CS, ccolour); 619 free(tty->ccolour); 620 tty->ccolour = xstrdup(ccolour); 621 } 622 623 void 624 tty_update_mode(struct tty *tty, int mode, struct screen *s) 625 { 626 int changed; 627 628 if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0) 629 tty_force_cursor_colour(tty, s->ccolour); 630 631 if (tty->flags & TTY_NOCURSOR) 632 mode &= ~MODE_CURSOR; 633 634 changed = mode ^ tty->mode; 635 if (changed & MODE_BLINKING) { 636 if (tty_term_has(tty->term, TTYC_CVVIS)) 637 tty_putcode(tty, TTYC_CVVIS); 638 else 639 tty_putcode(tty, TTYC_CNORM); 640 changed |= MODE_CURSOR; 641 } 642 if (changed & MODE_CURSOR) { 643 if (mode & MODE_CURSOR) 644 tty_putcode(tty, TTYC_CNORM); 645 else 646 tty_putcode(tty, TTYC_CIVIS); 647 } 648 if (s != NULL && tty->cstyle != s->cstyle) { 649 if (tty_term_has(tty->term, TTYC_SS)) { 650 if (s->cstyle == 0 && 651 tty_term_has(tty->term, TTYC_SE)) 652 tty_putcode(tty, TTYC_SE); 653 else 654 tty_putcode1(tty, TTYC_SS, s->cstyle); 655 } 656 tty->cstyle = s->cstyle; 657 } 658 if (changed & ALL_MOUSE_MODES) { 659 if (mode & ALL_MOUSE_MODES) { 660 /* 661 * Enable the SGR (1006) extension unconditionally, as 662 * it is safe from misinterpretation. 663 */ 664 tty_puts(tty, "\033[?1006h"); 665 if (mode & MODE_MOUSE_ALL) 666 tty_puts(tty, "\033[?1003h"); 667 else if (mode & MODE_MOUSE_BUTTON) 668 tty_puts(tty, "\033[?1002h"); 669 else if (mode & MODE_MOUSE_STANDARD) 670 tty_puts(tty, "\033[?1000h"); 671 } else { 672 if (tty->mode & MODE_MOUSE_ALL) 673 tty_puts(tty, "\033[?1003l"); 674 else if (tty->mode & MODE_MOUSE_BUTTON) 675 tty_puts(tty, "\033[?1002l"); 676 else if (tty->mode & MODE_MOUSE_STANDARD) 677 tty_puts(tty, "\033[?1000l"); 678 tty_puts(tty, "\033[?1006l"); 679 } 680 } 681 if (changed & MODE_BRACKETPASTE) { 682 if (mode & MODE_BRACKETPASTE) 683 tty_puts(tty, "\033[?2004h"); 684 else 685 tty_puts(tty, "\033[?2004l"); 686 } 687 tty->mode = mode; 688 } 689 690 static void 691 tty_emulate_repeat(struct tty *tty, enum tty_code_code code, 692 enum tty_code_code code1, u_int n) 693 { 694 if (tty_term_has(tty->term, code)) 695 tty_putcode1(tty, code, n); 696 else { 697 while (n-- > 0) 698 tty_putcode(tty, code1); 699 } 700 } 701 702 static void 703 tty_repeat_space(struct tty *tty, u_int n) 704 { 705 static char s[500]; 706 707 if (*s != ' ') 708 memset(s, ' ', sizeof s); 709 710 while (n > sizeof s) { 711 tty_putn(tty, s, sizeof s, sizeof s); 712 n -= sizeof s; 713 } 714 if (n != 0) 715 tty_putn(tty, s, n, n); 716 } 717 718 /* Is this window bigger than the terminal? */ 719 int 720 tty_window_bigger(struct tty *tty) 721 { 722 struct client *c = tty->client; 723 struct window *w = c->session->curw->window; 724 725 return (tty->sx < w->sx || tty->sy - status_line_size(c) < w->sy); 726 } 727 728 /* What offset should this window be drawn at? */ 729 int 730 tty_window_offset(struct tty *tty, u_int *ox, u_int *oy, u_int *sx, u_int *sy) 731 { 732 *ox = tty->oox; 733 *oy = tty->ooy; 734 *sx = tty->osx; 735 *sy = tty->osy; 736 737 return (tty->oflag); 738 } 739 740 /* What offset should this window be drawn at? */ 741 static int 742 tty_window_offset1(struct tty *tty, u_int *ox, u_int *oy, u_int *sx, u_int *sy) 743 { 744 struct client *c = tty->client; 745 struct window *w = c->session->curw->window; 746 struct window_pane *wp = w->active; 747 u_int cx, cy, lines; 748 749 lines = status_line_size(c); 750 751 if (tty->sx >= w->sx && tty->sy - lines >= w->sy) { 752 *ox = 0; 753 *oy = 0; 754 *sx = w->sx; 755 *sy = w->sy; 756 757 c->pan_window = NULL; 758 return (0); 759 } 760 761 *sx = tty->sx; 762 *sy = tty->sy - lines; 763 764 if (c->pan_window == w) { 765 if (*sx >= w->sx) 766 c->pan_ox = 0; 767 else if (c->pan_ox + *sx > w->sx) 768 c->pan_ox = w->sx - *sx; 769 *ox = c->pan_ox; 770 if (*sy >= w->sy) 771 c->pan_oy = 0; 772 else if (c->pan_oy + *sy > w->sy) 773 c->pan_oy = w->sy - *sy; 774 *oy = c->pan_oy; 775 return (1); 776 } 777 778 if (~wp->screen->mode & MODE_CURSOR) { 779 *ox = 0; 780 *oy = 0; 781 } else { 782 cx = wp->xoff + wp->screen->cx; 783 cy = wp->yoff + wp->screen->cy; 784 785 if (cx < *sx) 786 *ox = 0; 787 else if (cx > w->sx - *sx) 788 *ox = w->sx - *sx; 789 else 790 *ox = cx - *sx / 2; 791 792 if (cy < *sy) 793 *oy = 0; 794 else if (cy > w->sy - *sy) 795 *oy = w->sy - *sy; 796 else 797 *oy = cy - *sy / 2; 798 } 799 800 c->pan_window = NULL; 801 return (1); 802 } 803 804 /* Update stored offsets for a window and redraw if necessary. */ 805 void 806 tty_update_window_offset(struct window *w) 807 { 808 struct client *c; 809 810 TAILQ_FOREACH(c, &clients, entry) { 811 if (c->session != NULL && c->session->curw->window == w) 812 tty_update_client_offset(c); 813 } 814 } 815 816 /* Update stored offsets for a client and redraw if necessary. */ 817 void 818 tty_update_client_offset(struct client *c) 819 { 820 u_int ox, oy, sx, sy; 821 822 if (~c->flags & CLIENT_TERMINAL) 823 return; 824 825 c->tty.oflag = tty_window_offset1(&c->tty, &ox, &oy, &sx, &sy); 826 if (ox == c->tty.oox && 827 oy == c->tty.ooy && 828 sx == c->tty.osx && 829 sy == c->tty.osy) 830 return; 831 832 log_debug ("%s: %s offset has changed (%u,%u %ux%u -> %u,%u %ux%u)", 833 __func__, c->name, c->tty.oox, c->tty.ooy, c->tty.osx, c->tty.osy, 834 ox, oy, sx, sy); 835 836 c->tty.oox = ox; 837 c->tty.ooy = oy; 838 c->tty.osx = sx; 839 c->tty.osy = sy; 840 841 c->flags |= (CLIENT_REDRAWWINDOW|CLIENT_REDRAWSTATUS); 842 } 843 844 /* 845 * Is the region large enough to be worth redrawing once later rather than 846 * probably several times now? Currently yes if it is more than 50% of the 847 * pane. 848 */ 849 static int 850 tty_large_region(__unused struct tty *tty, const struct tty_ctx *ctx) 851 { 852 struct window_pane *wp = ctx->wp; 853 854 return (ctx->orlower - ctx->orupper >= screen_size_y(wp->screen) / 2); 855 } 856 857 /* 858 * Return if BCE is needed but the terminal doesn't have it - it'll need to be 859 * emulated. 860 */ 861 static int 862 tty_fake_bce(const struct tty *tty, struct window_pane *wp, u_int bg) 863 { 864 struct grid_cell gc; 865 866 if (tty_term_flag(tty->term, TTYC_BCE)) 867 return (0); 868 869 memcpy(&gc, &grid_default_cell, sizeof gc); 870 if (wp != NULL) 871 tty_default_colours(&gc, wp); 872 873 if (!COLOUR_DEFAULT(bg) || !COLOUR_DEFAULT(gc.bg)) 874 return (1); 875 return (0); 876 } 877 878 /* 879 * Redraw scroll region using data from screen (already updated). Used when 880 * CSR not supported, or window is a pane that doesn't take up the full 881 * width of the terminal. 882 */ 883 static void 884 tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx) 885 { 886 struct window_pane *wp = ctx->wp; 887 struct screen *s = wp->screen; 888 u_int i; 889 890 /* 891 * If region is large, schedule a window redraw. In most cases this is 892 * likely to be followed by some more scrolling. 893 */ 894 if (tty_large_region(tty, ctx)) { 895 wp->flags |= PANE_REDRAW; 896 return; 897 } 898 899 if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) { 900 for (i = ctx->ocy; i < screen_size_y(s); i++) 901 tty_draw_pane(tty, ctx, i); 902 } else { 903 for (i = ctx->orupper; i <= ctx->orlower; i++) 904 tty_draw_pane(tty, ctx, i); 905 } 906 } 907 908 /* Is this position visible in the pane? */ 909 static int 910 tty_is_visible(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py, 911 u_int nx, u_int ny) 912 { 913 u_int xoff = ctx->xoff + px, yoff = ctx->yoff + py, lines; 914 915 if (!ctx->bigger) 916 return (1); 917 918 if (status_at_line(tty->client) == 0) 919 lines = status_line_size(tty->client); 920 else 921 lines = 0; 922 923 if (xoff + nx <= ctx->ox || xoff >= ctx->ox + ctx->sx || 924 yoff + ny <= ctx->oy || yoff >= lines + ctx->oy + ctx->sy) 925 return (0); 926 return (1); 927 } 928 929 /* Clamp line position to visible part of pane. */ 930 static int 931 tty_clamp_line(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py, 932 u_int nx, u_int *i, u_int *x, u_int *rx, u_int *ry) 933 { 934 struct window_pane *wp = ctx->wp; 935 u_int xoff = wp->xoff + px; 936 937 if (!tty_is_visible(tty, ctx, px, py, nx, 1)) 938 return (0); 939 *ry = ctx->yoff + py - ctx->oy; 940 941 if (xoff >= ctx->ox && xoff + nx <= ctx->ox + ctx->sx) { 942 /* All visible. */ 943 *i = 0; 944 *x = ctx->xoff + px - ctx->ox; 945 *rx = nx; 946 } else if (xoff < ctx->ox && xoff + nx > ctx->ox + ctx->sx) { 947 /* Both left and right not visible. */ 948 *i = ctx->ox; 949 *x = 0; 950 *rx = ctx->sx; 951 } else if (xoff < ctx->ox) { 952 /* Left not visible. */ 953 *i = ctx->ox - (ctx->xoff + px); 954 *x = 0; 955 *rx = nx - *i; 956 } else { 957 /* Right not visible. */ 958 *i = 0; 959 *x = (ctx->xoff + px) - ctx->ox; 960 *rx = ctx->sx - *x; 961 } 962 if (*rx > nx) 963 fatalx("%s: x too big, %u > %u", __func__, *rx, nx); 964 965 return (1); 966 } 967 968 /* Clear a line. */ 969 static void 970 tty_clear_line(struct tty *tty, struct window_pane *wp, u_int py, u_int px, 971 u_int nx, u_int bg) 972 { 973 struct client *c = tty->client; 974 975 log_debug("%s: %s, %u at %u,%u", __func__, c->name, nx, px, py); 976 977 /* Nothing to clear. */ 978 if (nx == 0) 979 return; 980 981 /* If genuine BCE is available, can try escape sequences. */ 982 if (!tty_fake_bce(tty, wp, bg)) { 983 /* Off the end of the line, use EL if available. */ 984 if (px + nx >= tty->sx && tty_term_has(tty->term, TTYC_EL)) { 985 tty_cursor(tty, px, py); 986 tty_putcode(tty, TTYC_EL); 987 return; 988 } 989 990 /* At the start of the line. Use EL1. */ 991 if (px == 0 && tty_term_has(tty->term, TTYC_EL1)) { 992 tty_cursor(tty, px + nx - 1, py); 993 tty_putcode(tty, TTYC_EL1); 994 return; 995 } 996 997 /* Section of line. Use ECH if possible. */ 998 if (tty_term_has(tty->term, TTYC_ECH)) { 999 tty_cursor(tty, px, py); 1000 tty_putcode1(tty, TTYC_ECH, nx); 1001 return; 1002 } 1003 } 1004 1005 /* Couldn't use an escape sequence, use spaces. */ 1006 tty_cursor(tty, px, py); 1007 tty_repeat_space(tty, nx); 1008 } 1009 1010 /* Clear a line, adjusting to visible part of pane. */ 1011 static void 1012 tty_clear_pane_line(struct tty *tty, const struct tty_ctx *ctx, u_int py, 1013 u_int px, u_int nx, u_int bg) 1014 { 1015 struct client *c = tty->client; 1016 u_int i, x, rx, ry; 1017 1018 log_debug("%s: %s, %u at %u,%u", __func__, c->name, nx, px, py); 1019 1020 if (tty_clamp_line(tty, ctx, px, py, nx, &i, &x, &rx, &ry)) 1021 tty_clear_line(tty, ctx->wp, ry, x, rx, bg); 1022 } 1023 1024 /* Clamp area position to visible part of pane. */ 1025 static int 1026 tty_clamp_area(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py, 1027 u_int nx, u_int ny, u_int *i, u_int *j, u_int *x, u_int *y, u_int *rx, 1028 u_int *ry) 1029 { 1030 struct window_pane *wp = ctx->wp; 1031 u_int xoff = wp->xoff + px, yoff = wp->yoff + py; 1032 1033 if (!tty_is_visible(tty, ctx, px, py, nx, ny)) 1034 return (0); 1035 1036 if (xoff >= ctx->ox && xoff + nx <= ctx->ox + ctx->sx) { 1037 /* All visible. */ 1038 *i = 0; 1039 *x = ctx->xoff + px - ctx->ox; 1040 *rx = nx; 1041 } else if (xoff < ctx->ox && xoff + nx > ctx->ox + ctx->sx) { 1042 /* Both left and right not visible. */ 1043 *i = ctx->ox; 1044 *x = 0; 1045 *rx = ctx->sx; 1046 } else if (xoff < ctx->ox) { 1047 /* Left not visible. */ 1048 *i = ctx->ox - (ctx->xoff + px); 1049 *x = 0; 1050 *rx = nx - *i; 1051 } else { 1052 /* Right not visible. */ 1053 *i = 0; 1054 *x = (ctx->xoff + px) - ctx->ox; 1055 *rx = ctx->sx - *x; 1056 } 1057 if (*rx > nx) 1058 fatalx("%s: x too big, %u > %u", __func__, *rx, nx); 1059 1060 if (yoff >= ctx->oy && yoff + ny <= ctx->oy + ctx->sy) { 1061 /* All visible. */ 1062 *j = 0; 1063 *y = ctx->yoff + py - ctx->oy; 1064 *ry = ny; 1065 } else if (yoff < ctx->oy && yoff + ny > ctx->oy + ctx->sy) { 1066 /* Both top and bottom not visible. */ 1067 *j = ctx->oy; 1068 *y = 0; 1069 *ry = ctx->sy; 1070 } else if (yoff < ctx->oy) { 1071 /* Top not visible. */ 1072 *j = ctx->oy - (ctx->yoff + py); 1073 *y = 0; 1074 *ry = ny - *j; 1075 } else { 1076 /* Bottom not visible. */ 1077 *j = 0; 1078 *y = (ctx->yoff + py) - ctx->oy; 1079 *ry = ctx->sy - *y; 1080 } 1081 if (*ry > ny) 1082 fatalx("%s: y too big, %u > %u", __func__, *ry, ny); 1083 1084 return (1); 1085 } 1086 1087 /* Clear an area, adjusting to visible part of pane. */ 1088 static void 1089 tty_clear_area(struct tty *tty, struct window_pane *wp, u_int py, u_int ny, 1090 u_int px, u_int nx, u_int bg) 1091 { 1092 struct client *c = tty->client; 1093 u_int yy; 1094 char tmp[64]; 1095 1096 log_debug("%s: %s, %u,%u at %u,%u", __func__, c->name, nx, ny, px, py); 1097 1098 /* Nothing to clear. */ 1099 if (nx == 0 || ny == 0) 1100 return; 1101 1102 /* If genuine BCE is available, can try escape sequences. */ 1103 if (!tty_fake_bce(tty, wp, bg)) { 1104 /* Use ED if clearing off the bottom of the terminal. */ 1105 if (px == 0 && 1106 px + nx >= tty->sx && 1107 py + ny >= tty->sy && 1108 tty_term_has(tty->term, TTYC_ED)) { 1109 tty_cursor(tty, 0, py); 1110 tty_putcode(tty, TTYC_ED); 1111 return; 1112 } 1113 1114 /* 1115 * On VT420 compatible terminals we can use DECFRA if the 1116 * background colour isn't default (because it doesn't work 1117 * after SGR 0). 1118 */ 1119 if (tty->term_type == TTY_VT420 && !COLOUR_DEFAULT(bg)) { 1120 xsnprintf(tmp, sizeof tmp, "\033[32;%u;%u;%u;%u$x", 1121 py + 1, px + 1, py + ny, px + nx); 1122 tty_puts(tty, tmp); 1123 return; 1124 } 1125 1126 /* Full lines can be scrolled away to clear them. */ 1127 if (px == 0 && 1128 px + nx >= tty->sx && 1129 ny > 2 && 1130 tty_term_has(tty->term, TTYC_CSR) && 1131 tty_term_has(tty->term, TTYC_INDN)) { 1132 tty_region(tty, py, py + ny - 1); 1133 tty_margin_off(tty); 1134 tty_putcode1(tty, TTYC_INDN, ny); 1135 return; 1136 } 1137 1138 /* 1139 * If margins are supported, can just scroll the area off to 1140 * clear it. 1141 */ 1142 if (nx > 2 && 1143 ny > 2 && 1144 tty_term_has(tty->term, TTYC_CSR) && 1145 tty_use_margin(tty) && 1146 tty_term_has(tty->term, TTYC_INDN)) { 1147 tty_region(tty, py, py + ny - 1); 1148 tty_margin(tty, px, px + nx - 1); 1149 tty_putcode1(tty, TTYC_INDN, ny); 1150 return; 1151 } 1152 } 1153 1154 /* Couldn't use an escape sequence, loop over the lines. */ 1155 for (yy = py; yy < py + ny; yy++) 1156 tty_clear_line(tty, wp, yy, px, nx, bg); 1157 } 1158 1159 /* Clear an area in a pane. */ 1160 static void 1161 tty_clear_pane_area(struct tty *tty, const struct tty_ctx *ctx, u_int py, 1162 u_int ny, u_int px, u_int nx, u_int bg) 1163 { 1164 u_int i, j, x, y, rx, ry; 1165 1166 if (tty_clamp_area(tty, ctx, px, py, nx, ny, &i, &j, &x, &y, &rx, &ry)) 1167 tty_clear_area(tty, ctx->wp, y, ry, x, rx, bg); 1168 } 1169 1170 static void 1171 tty_draw_pane(struct tty *tty, const struct tty_ctx *ctx, u_int py) 1172 { 1173 struct window_pane *wp = ctx->wp; 1174 struct screen *s = wp->screen; 1175 u_int nx = screen_size_x(s), i, x, rx, ry; 1176 1177 log_debug("%s: %s %u %d", __func__, tty->client->name, py, ctx->bigger); 1178 1179 if (!ctx->bigger) { 1180 tty_draw_line(tty, wp, s, 0, py, nx, ctx->xoff, ctx->yoff + py); 1181 return; 1182 } 1183 if (tty_clamp_line(tty, ctx, 0, py, nx, &i, &x, &rx, &ry)) 1184 tty_draw_line(tty, wp, s, i, py, rx, x, ry); 1185 } 1186 1187 static const struct grid_cell * 1188 tty_check_codeset(struct tty *tty, const struct grid_cell *gc) 1189 { 1190 static struct grid_cell new; 1191 u_int n; 1192 1193 /* Characters less than 0x7f are always fine, no matter what. */ 1194 if (gc->data.size == 1 && *gc->data.data < 0x7f) 1195 return (gc); 1196 1197 /* UTF-8 terminal and a UTF-8 character - fine. */ 1198 if (tty->flags & TTY_UTF8) 1199 return (gc); 1200 1201 /* Replace by the right number of underscores. */ 1202 n = gc->data.width; 1203 if (n > UTF8_SIZE) 1204 n = UTF8_SIZE; 1205 memcpy(&new, gc, sizeof new); 1206 new.data.size = n; 1207 memset(new.data.data, '_', n); 1208 return (&new); 1209 } 1210 1211 void 1212 tty_draw_line(struct tty *tty, struct window_pane *wp, struct screen *s, 1213 u_int px, u_int py, u_int nx, u_int atx, u_int aty) 1214 { 1215 struct grid *gd = s->grid; 1216 struct grid_cell gc, last; 1217 const struct grid_cell *gcp; 1218 struct grid_line *gl; 1219 u_int i, j, ux, sx, width; 1220 int flags, cleared = 0, wrapped = 0; 1221 char buf[512]; 1222 size_t len; 1223 u_int cellsize; 1224 1225 log_debug("%s: px=%u py=%u nx=%u atx=%u aty=%u", __func__, 1226 px, py, nx, atx, aty); 1227 1228 /* 1229 * py is the line in the screen to draw. 1230 * px is the start x and nx is the width to draw. 1231 * atx,aty is the line on the terminal to draw it. 1232 */ 1233 1234 flags = (tty->flags & TTY_NOCURSOR); 1235 tty->flags |= TTY_NOCURSOR; 1236 tty_update_mode(tty, tty->mode, s); 1237 1238 tty_region_off(tty); 1239 tty_margin_off(tty); 1240 1241 /* 1242 * Clamp the width to cellsize - note this is not cellused, because 1243 * there may be empty background cells after it (from BCE). 1244 */ 1245 sx = screen_size_x(s); 1246 if (nx > sx) 1247 nx = sx; 1248 cellsize = grid_get_line(gd, gd->hsize + py)->cellsize; 1249 if (sx > cellsize) 1250 sx = cellsize; 1251 if (sx > tty->sx) 1252 sx = tty->sx; 1253 if (sx > nx) 1254 sx = nx; 1255 ux = 0; 1256 1257 if (py == 0) 1258 gl = NULL; 1259 else 1260 gl = grid_get_line(gd, gd->hsize + py - 1); 1261 if (wp == NULL || 1262 gl == NULL || 1263 (~gl->flags & GRID_LINE_WRAPPED) || 1264 atx != 0 || 1265 tty->cx < tty->sx || 1266 nx < tty->sx) { 1267 if (nx < tty->sx && 1268 atx == 0 && 1269 px + sx != nx && 1270 tty_term_has(tty->term, TTYC_EL1) && 1271 !tty_fake_bce(tty, wp, 8)) { 1272 tty_default_attributes(tty, wp, 8); 1273 tty_cursor(tty, nx - 1, aty); 1274 tty_putcode(tty, TTYC_EL1); 1275 cleared = 1; 1276 } 1277 } else { 1278 log_debug("%s: wrapped line %u", __func__, aty); 1279 wrapped = 1; 1280 } 1281 1282 memcpy(&last, &grid_default_cell, sizeof last); 1283 len = 0; 1284 width = 0; 1285 1286 for (i = 0; i < sx; i++) { 1287 grid_view_get_cell(gd, px + i, py, &gc); 1288 gcp = tty_check_codeset(tty, &gc); 1289 if (len != 0 && 1290 ((gcp->attr & GRID_ATTR_CHARSET) || 1291 gcp->flags != last.flags || 1292 gcp->attr != last.attr || 1293 gcp->fg != last.fg || 1294 gcp->bg != last.bg || 1295 gcp->us != last.us || 1296 ux + width + gcp->data.width > nx || 1297 (sizeof buf) - len < gcp->data.size)) { 1298 tty_attributes(tty, &last, wp); 1299 if (last.flags & GRID_FLAG_CLEARED) { 1300 log_debug("%s: %zu cleared", __func__, len); 1301 tty_clear_line(tty, wp, aty, atx + ux, width, 1302 last.bg); 1303 } else { 1304 if (!wrapped || atx != 0 || ux != 0) 1305 tty_cursor(tty, atx + ux, aty); 1306 tty_putn(tty, buf, len, width); 1307 } 1308 ux += width; 1309 1310 len = 0; 1311 width = 0; 1312 wrapped = 0; 1313 } 1314 1315 if (gcp->flags & GRID_FLAG_SELECTED) 1316 screen_select_cell(s, &last, gcp); 1317 else 1318 memcpy(&last, gcp, sizeof last); 1319 if (ux + gcp->data.width > nx) { 1320 tty_attributes(tty, &last, wp); 1321 tty_cursor(tty, atx + ux, aty); 1322 for (j = 0; j < gcp->data.width; j++) { 1323 if (ux + j > nx) 1324 break; 1325 tty_putc(tty, ' '); 1326 ux++; 1327 } 1328 } else if (gcp->attr & GRID_ATTR_CHARSET) { 1329 tty_attributes(tty, &last, wp); 1330 tty_cursor(tty, atx + ux, aty); 1331 for (j = 0; j < gcp->data.size; j++) 1332 tty_putc(tty, gcp->data.data[j]); 1333 ux += gc.data.width; 1334 } else { 1335 memcpy(buf + len, gcp->data.data, gcp->data.size); 1336 len += gcp->data.size; 1337 width += gcp->data.width; 1338 } 1339 } 1340 if (len != 0 && ((~last.flags & GRID_FLAG_CLEARED) || last.bg != 8)) { 1341 tty_attributes(tty, &last, wp); 1342 if (last.flags & GRID_FLAG_CLEARED) { 1343 log_debug("%s: %zu cleared (end)", __func__, len); 1344 tty_clear_line(tty, wp, aty, atx + ux, width, last.bg); 1345 } else { 1346 if (!wrapped || atx != 0 || ux != 0) 1347 tty_cursor(tty, atx + ux, aty); 1348 tty_putn(tty, buf, len, width); 1349 } 1350 ux += width; 1351 } 1352 1353 if (!cleared && ux < nx) { 1354 log_debug("%s: %u to end of line (%zu cleared)", __func__, 1355 nx - ux, len); 1356 tty_default_attributes(tty, wp, 8); 1357 tty_clear_line(tty, wp, aty, atx + ux, nx - ux, 8); 1358 } 1359 1360 tty->flags = (tty->flags & ~TTY_NOCURSOR) | flags; 1361 tty_update_mode(tty, tty->mode, s); 1362 } 1363 1364 static int 1365 tty_client_ready(struct client *c, struct window_pane *wp) 1366 { 1367 if (c->session == NULL || c->tty.term == NULL) 1368 return (0); 1369 if (c->flags & (CLIENT_REDRAWWINDOW|CLIENT_SUSPENDED)) 1370 return (0); 1371 if (c->tty.flags & TTY_FREEZE) 1372 return (0); 1373 if (c->session->curw->window != wp->window) 1374 return (0); 1375 if (wp->layout_cell == NULL) 1376 return (0); 1377 return (1); 1378 } 1379 1380 void 1381 tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *), 1382 struct tty_ctx *ctx) 1383 { 1384 struct window_pane *wp = ctx->wp; 1385 struct client *c; 1386 1387 if (wp == NULL) 1388 return; 1389 if (wp->flags & (PANE_REDRAW|PANE_DROP)) 1390 return; 1391 1392 TAILQ_FOREACH(c, &clients, entry) { 1393 if (!tty_client_ready(c, wp)) 1394 continue; 1395 1396 ctx->bigger = tty_window_offset(&c->tty, &ctx->ox, &ctx->oy, 1397 &ctx->sx, &ctx->sy); 1398 1399 ctx->xoff = wp->xoff; 1400 ctx->yoff = wp->yoff; 1401 1402 if (status_at_line(c) == 0) 1403 ctx->yoff += status_line_size(c); 1404 1405 cmdfn(&c->tty, ctx); 1406 } 1407 } 1408 1409 void 1410 tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx) 1411 { 1412 struct window_pane *wp = ctx->wp; 1413 1414 if (ctx->bigger || 1415 !tty_pane_full_width(tty, ctx) || 1416 tty_fake_bce(tty, wp, ctx->bg) || 1417 (!tty_term_has(tty->term, TTYC_ICH) && 1418 !tty_term_has(tty->term, TTYC_ICH1))) { 1419 tty_draw_pane(tty, ctx, ctx->ocy); 1420 return; 1421 } 1422 1423 tty_default_attributes(tty, wp, ctx->bg); 1424 1425 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1426 1427 tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num); 1428 } 1429 1430 void 1431 tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx) 1432 { 1433 struct window_pane *wp = ctx->wp; 1434 1435 if (ctx->bigger || 1436 !tty_pane_full_width(tty, ctx) || 1437 tty_fake_bce(tty, wp, ctx->bg) || 1438 (!tty_term_has(tty->term, TTYC_DCH) && 1439 !tty_term_has(tty->term, TTYC_DCH1))) { 1440 tty_draw_pane(tty, ctx, ctx->ocy); 1441 return; 1442 } 1443 1444 tty_default_attributes(tty, wp, ctx->bg); 1445 1446 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1447 1448 tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num); 1449 } 1450 1451 void 1452 tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx) 1453 { 1454 if (ctx->bigger) { 1455 tty_draw_pane(tty, ctx, ctx->ocy); 1456 return; 1457 } 1458 1459 tty_default_attributes(tty, ctx->wp, ctx->bg); 1460 1461 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1462 1463 if (tty_term_has(tty->term, TTYC_ECH) && 1464 !tty_fake_bce(tty, ctx->wp, 8)) 1465 tty_putcode1(tty, TTYC_ECH, ctx->num); 1466 else 1467 tty_repeat_space(tty, ctx->num); 1468 } 1469 1470 void 1471 tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx) 1472 { 1473 if (ctx->bigger || 1474 !tty_pane_full_width(tty, ctx) || 1475 tty_fake_bce(tty, ctx->wp, ctx->bg) || 1476 !tty_term_has(tty->term, TTYC_CSR) || 1477 !tty_term_has(tty->term, TTYC_IL1) || 1478 ctx->wp->sx == 1 || 1479 ctx->wp->sy == 1) { 1480 tty_redraw_region(tty, ctx); 1481 return; 1482 } 1483 1484 tty_default_attributes(tty, ctx->wp, ctx->bg); 1485 1486 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1487 tty_margin_off(tty); 1488 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1489 1490 tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num); 1491 tty->cx = tty->cy = UINT_MAX; 1492 } 1493 1494 void 1495 tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx) 1496 { 1497 if (ctx->bigger || 1498 !tty_pane_full_width(tty, ctx) || 1499 tty_fake_bce(tty, ctx->wp, ctx->bg) || 1500 !tty_term_has(tty->term, TTYC_CSR) || 1501 !tty_term_has(tty->term, TTYC_DL1) || 1502 ctx->wp->sx == 1 || 1503 ctx->wp->sy == 1) { 1504 tty_redraw_region(tty, ctx); 1505 return; 1506 } 1507 1508 tty_default_attributes(tty, ctx->wp, ctx->bg); 1509 1510 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1511 tty_margin_off(tty); 1512 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1513 1514 tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num); 1515 tty->cx = tty->cy = UINT_MAX; 1516 } 1517 1518 void 1519 tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx) 1520 { 1521 struct window_pane *wp = ctx->wp; 1522 u_int nx; 1523 1524 tty_default_attributes(tty, wp, ctx->bg); 1525 1526 nx = screen_size_x(wp->screen); 1527 tty_clear_pane_line(tty, ctx, ctx->ocy, 0, nx, ctx->bg); 1528 } 1529 1530 void 1531 tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx) 1532 { 1533 struct window_pane *wp = ctx->wp; 1534 u_int nx; 1535 1536 tty_default_attributes(tty, wp, ctx->bg); 1537 1538 nx = screen_size_x(wp->screen) - ctx->ocx; 1539 tty_clear_pane_line(tty, ctx, ctx->ocy, ctx->ocx, nx, ctx->bg); 1540 } 1541 1542 void 1543 tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx) 1544 { 1545 struct window_pane *wp = ctx->wp; 1546 1547 tty_default_attributes(tty, wp, ctx->bg); 1548 1549 tty_clear_pane_line(tty, ctx, ctx->ocy, 0, ctx->ocx + 1, ctx->bg); 1550 } 1551 1552 void 1553 tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx) 1554 { 1555 struct window_pane *wp = ctx->wp; 1556 1557 if (ctx->ocy != ctx->orupper) 1558 return; 1559 1560 if (ctx->bigger || 1561 (!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) || 1562 tty_fake_bce(tty, wp, 8) || 1563 !tty_term_has(tty->term, TTYC_CSR) || 1564 (!tty_term_has(tty->term, TTYC_RI) && 1565 !tty_term_has(tty->term, TTYC_RIN)) || 1566 ctx->wp->sx == 1 || 1567 ctx->wp->sy == 1) { 1568 tty_redraw_region(tty, ctx); 1569 return; 1570 } 1571 1572 tty_default_attributes(tty, wp, ctx->bg); 1573 1574 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1575 tty_margin_pane(tty, ctx); 1576 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper); 1577 1578 if (tty_term_has(tty->term, TTYC_RI)) 1579 tty_putcode(tty, TTYC_RI); 1580 else 1581 tty_putcode1(tty, TTYC_RIN, 1); 1582 } 1583 1584 void 1585 tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx) 1586 { 1587 struct window_pane *wp = ctx->wp; 1588 1589 if (ctx->ocy != ctx->orlower) 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 wp->sx == 1 || 1597 wp->sy == 1) { 1598 tty_redraw_region(tty, ctx); 1599 return; 1600 } 1601 1602 tty_default_attributes(tty, wp, ctx->bg); 1603 1604 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1605 tty_margin_pane(tty, ctx); 1606 1607 /* 1608 * If we want to wrap a pane while using margins, the cursor needs to 1609 * be exactly on the right of the region. If the cursor is entirely off 1610 * the edge - move it back to the right. Some terminals are funny about 1611 * this and insert extra spaces, so only use the right if margins are 1612 * enabled. 1613 */ 1614 if (ctx->xoff + ctx->ocx > tty->rright) { 1615 if (!tty_use_margin(tty)) 1616 tty_cursor(tty, 0, ctx->yoff + ctx->ocy); 1617 else 1618 tty_cursor(tty, tty->rright, ctx->yoff + ctx->ocy); 1619 } else 1620 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1621 1622 tty_putc(tty, '\n'); 1623 } 1624 1625 void 1626 tty_cmd_scrollup(struct tty *tty, const struct tty_ctx *ctx) 1627 { 1628 struct window_pane *wp = ctx->wp; 1629 u_int i; 1630 1631 if (ctx->bigger || 1632 (!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) || 1633 tty_fake_bce(tty, wp, 8) || 1634 !tty_term_has(tty->term, TTYC_CSR) || 1635 wp->sx == 1 || 1636 wp->sy == 1) { 1637 tty_redraw_region(tty, ctx); 1638 return; 1639 } 1640 1641 tty_default_attributes(tty, wp, ctx->bg); 1642 1643 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1644 tty_margin_pane(tty, ctx); 1645 1646 if (ctx->num == 1 || !tty_term_has(tty->term, TTYC_INDN)) { 1647 if (!tty_use_margin(tty)) 1648 tty_cursor(tty, 0, tty->rlower); 1649 else 1650 tty_cursor(tty, tty->rright, tty->rlower); 1651 for (i = 0; i < ctx->num; i++) 1652 tty_putc(tty, '\n'); 1653 } else { 1654 tty_cursor(tty, 0, tty->cy); 1655 tty_putcode1(tty, TTYC_INDN, ctx->num); 1656 } 1657 } 1658 1659 void 1660 tty_cmd_scrolldown(struct tty *tty, const struct tty_ctx *ctx) 1661 { 1662 struct window_pane *wp = ctx->wp; 1663 u_int i; 1664 1665 if (ctx->bigger || 1666 (!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) || 1667 tty_fake_bce(tty, wp, 8) || 1668 !tty_term_has(tty->term, TTYC_CSR) || 1669 (!tty_term_has(tty->term, TTYC_RI) && 1670 !tty_term_has(tty->term, TTYC_RIN)) || 1671 wp->sx == 1 || 1672 wp->sy == 1) { 1673 tty_redraw_region(tty, ctx); 1674 return; 1675 } 1676 1677 tty_default_attributes(tty, wp, ctx->bg); 1678 1679 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1680 tty_margin_pane(tty, ctx); 1681 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper); 1682 1683 if (tty_term_has(tty->term, TTYC_RIN)) 1684 tty_putcode1(tty, TTYC_RIN, ctx->num); 1685 else { 1686 for (i = 0; i < ctx->num; i++) 1687 tty_putcode(tty, TTYC_RI); 1688 } 1689 } 1690 1691 void 1692 tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx) 1693 { 1694 struct window_pane *wp = ctx->wp; 1695 u_int px, py, nx, ny; 1696 1697 tty_default_attributes(tty, wp, ctx->bg); 1698 1699 tty_region_pane(tty, ctx, 0, screen_size_y(wp->screen) - 1); 1700 tty_margin_off(tty); 1701 1702 px = 0; 1703 nx = screen_size_x(wp->screen); 1704 py = ctx->ocy + 1; 1705 ny = screen_size_y(wp->screen) - ctx->ocy - 1; 1706 1707 tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg); 1708 1709 px = ctx->ocx; 1710 nx = screen_size_x(wp->screen) - ctx->ocx; 1711 py = ctx->ocy; 1712 1713 tty_clear_pane_line(tty, ctx, py, px, nx, ctx->bg); 1714 } 1715 1716 void 1717 tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx) 1718 { 1719 struct window_pane *wp = ctx->wp; 1720 u_int px, py, nx, ny; 1721 1722 tty_default_attributes(tty, wp, ctx->bg); 1723 1724 tty_region_pane(tty, ctx, 0, screen_size_y(wp->screen) - 1); 1725 tty_margin_off(tty); 1726 1727 px = 0; 1728 nx = screen_size_x(wp->screen); 1729 py = 0; 1730 ny = ctx->ocy; 1731 1732 tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg); 1733 1734 px = 0; 1735 nx = ctx->ocx + 1; 1736 py = ctx->ocy; 1737 1738 tty_clear_pane_line(tty, ctx, py, px, nx, ctx->bg); 1739 } 1740 1741 void 1742 tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx) 1743 { 1744 struct window_pane *wp = ctx->wp; 1745 u_int px, py, nx, ny; 1746 1747 tty_default_attributes(tty, wp, ctx->bg); 1748 1749 tty_region_pane(tty, ctx, 0, screen_size_y(wp->screen) - 1); 1750 tty_margin_off(tty); 1751 1752 px = 0; 1753 nx = screen_size_x(wp->screen); 1754 py = 0; 1755 ny = screen_size_y(wp->screen); 1756 1757 tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg); 1758 } 1759 1760 void 1761 tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx) 1762 { 1763 struct window_pane *wp = ctx->wp; 1764 struct screen *s = wp->screen; 1765 u_int i, j; 1766 1767 if (ctx->bigger) { 1768 wp->flags |= PANE_REDRAW; 1769 return; 1770 } 1771 1772 tty_attributes(tty, &grid_default_cell, wp); 1773 1774 tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1); 1775 tty_margin_off(tty); 1776 1777 for (j = 0; j < screen_size_y(s); j++) { 1778 tty_cursor_pane(tty, ctx, 0, j); 1779 for (i = 0; i < screen_size_x(s); i++) 1780 tty_putc(tty, 'E'); 1781 } 1782 } 1783 1784 void 1785 tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx) 1786 { 1787 if (!tty_is_visible(tty, ctx, ctx->ocx, ctx->ocy, 1, 1)) 1788 return; 1789 1790 if (ctx->xoff + ctx->ocx - ctx->ox > tty->sx - 1 && 1791 ctx->ocy == ctx->orlower && 1792 tty_pane_full_width(tty, ctx)) 1793 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1794 1795 tty_margin_off(tty); 1796 tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy); 1797 1798 tty_cell(tty, ctx->cell, ctx->wp); 1799 } 1800 1801 void 1802 tty_cmd_cells(struct tty *tty, const struct tty_ctx *ctx) 1803 { 1804 struct window_pane *wp = ctx->wp; 1805 1806 if (!tty_is_visible(tty, ctx, ctx->ocx, ctx->ocy, ctx->num, 1)) 1807 return; 1808 1809 if (ctx->bigger && 1810 (ctx->xoff + ctx->ocx < ctx->ox || 1811 ctx->xoff + ctx->ocx + ctx->num > ctx->ox + ctx->sx)) { 1812 if (!ctx->wrapped || 1813 !tty_pane_full_width(tty, ctx) || 1814 (tty->term->flags & TERM_EARLYWRAP) || 1815 ctx->xoff + ctx->ocx != 0 || 1816 ctx->yoff + ctx->ocy != tty->cy + 1 || 1817 tty->cx < tty->sx || 1818 tty->cy == tty->rlower) 1819 tty_draw_pane(tty, ctx, ctx->ocy); 1820 else 1821 wp->flags |= PANE_REDRAW; 1822 return; 1823 } 1824 1825 tty_margin_off(tty); 1826 tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy); 1827 1828 tty_attributes(tty, ctx->cell, ctx->wp); 1829 tty_putn(tty, ctx->ptr, ctx->num, ctx->num); 1830 } 1831 1832 void 1833 tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx) 1834 { 1835 char *buf; 1836 size_t off; 1837 1838 if (!tty_term_has(tty->term, TTYC_MS)) 1839 return; 1840 1841 off = 4 * ((ctx->num + 2) / 3) + 1; /* storage for base64 */ 1842 buf = xmalloc(off); 1843 1844 b64_ntop(ctx->ptr, ctx->num, buf, off); 1845 tty_putcode_ptr2(tty, TTYC_MS, "", buf); 1846 1847 free(buf); 1848 } 1849 1850 void 1851 tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx) 1852 { 1853 tty_add(tty, ctx->ptr, ctx->num); 1854 tty_invalidate(tty); 1855 } 1856 1857 static void 1858 tty_cell(struct tty *tty, const struct grid_cell *gc, struct window_pane *wp) 1859 { 1860 const struct grid_cell *gcp; 1861 1862 /* Skip last character if terminal is stupid. */ 1863 if ((tty->term->flags & TERM_EARLYWRAP) && 1864 tty->cy == tty->sy - 1 && 1865 tty->cx == tty->sx - 1) 1866 return; 1867 1868 /* If this is a padding character, do nothing. */ 1869 if (gc->flags & GRID_FLAG_PADDING) 1870 return; 1871 1872 /* Set the attributes. */ 1873 tty_attributes(tty, gc, wp); 1874 1875 /* Get the cell and if ASCII write with putc to do ACS translation. */ 1876 gcp = tty_check_codeset(tty, gc); 1877 if (gcp->data.size == 1) { 1878 if (*gcp->data.data < 0x20 || *gcp->data.data == 0x7f) 1879 return; 1880 tty_putc(tty, *gcp->data.data); 1881 return; 1882 } 1883 1884 /* Write the data. */ 1885 tty_putn(tty, gcp->data.data, gcp->data.size, gcp->data.width); 1886 } 1887 1888 void 1889 tty_reset(struct tty *tty) 1890 { 1891 struct grid_cell *gc = &tty->cell; 1892 1893 if (!grid_cells_equal(gc, &grid_default_cell)) { 1894 if ((gc->attr & GRID_ATTR_CHARSET) && tty_acs_needed(tty)) 1895 tty_putcode(tty, TTYC_RMACS); 1896 tty_putcode(tty, TTYC_SGR0); 1897 memcpy(gc, &grid_default_cell, sizeof *gc); 1898 } 1899 1900 memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell); 1901 tty->last_wp = -1; 1902 } 1903 1904 static void 1905 tty_invalidate(struct tty *tty) 1906 { 1907 memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell); 1908 1909 memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell); 1910 tty->last_wp = -1; 1911 1912 tty->cx = tty->cy = UINT_MAX; 1913 1914 tty->rupper = tty->rleft = UINT_MAX; 1915 tty->rlower = tty->rright = UINT_MAX; 1916 1917 if (tty->flags & TTY_STARTED) { 1918 if (tty_use_margin(tty)) 1919 tty_puts(tty, "\033[?69h"); /* DECLRMM */ 1920 tty_putcode(tty, TTYC_SGR0); 1921 1922 tty->mode = ALL_MODES; 1923 tty_update_mode(tty, MODE_CURSOR, NULL); 1924 1925 tty_cursor(tty, 0, 0); 1926 tty_region_off(tty); 1927 tty_margin_off(tty); 1928 } else 1929 tty->mode = MODE_CURSOR; 1930 } 1931 1932 /* Turn off margin. */ 1933 void 1934 tty_region_off(struct tty *tty) 1935 { 1936 tty_region(tty, 0, tty->sy - 1); 1937 } 1938 1939 /* Set region inside pane. */ 1940 static void 1941 tty_region_pane(struct tty *tty, const struct tty_ctx *ctx, u_int rupper, 1942 u_int rlower) 1943 { 1944 tty_region(tty, ctx->yoff + rupper - ctx->oy, 1945 ctx->yoff + rlower - ctx->oy); 1946 } 1947 1948 /* Set region at absolute position. */ 1949 static void 1950 tty_region(struct tty *tty, u_int rupper, u_int rlower) 1951 { 1952 if (tty->rlower == rlower && tty->rupper == rupper) 1953 return; 1954 if (!tty_term_has(tty->term, TTYC_CSR)) 1955 return; 1956 1957 tty->rupper = rupper; 1958 tty->rlower = rlower; 1959 1960 /* 1961 * Some terminals (such as PuTTY) do not correctly reset the cursor to 1962 * 0,0 if it is beyond the last column (they do not reset their wrap 1963 * flag so further output causes a line feed). As a workaround, do an 1964 * explicit move to 0 first. 1965 */ 1966 if (tty->cx >= tty->sx) 1967 tty_cursor(tty, 0, tty->cy); 1968 1969 tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower); 1970 tty->cx = tty->cy = UINT_MAX; 1971 } 1972 1973 /* Turn off margin. */ 1974 void 1975 tty_margin_off(struct tty *tty) 1976 { 1977 tty_margin(tty, 0, tty->sx - 1); 1978 } 1979 1980 /* Set margin inside pane. */ 1981 static void 1982 tty_margin_pane(struct tty *tty, const struct tty_ctx *ctx) 1983 { 1984 tty_margin(tty, ctx->xoff - ctx->ox, 1985 ctx->xoff + ctx->wp->sx - 1 - ctx->ox); 1986 } 1987 1988 /* Set margin at absolute position. */ 1989 static void 1990 tty_margin(struct tty *tty, u_int rleft, u_int rright) 1991 { 1992 char s[64]; 1993 1994 if (!tty_use_margin(tty)) 1995 return; 1996 if (tty->rleft == rleft && tty->rright == rright) 1997 return; 1998 1999 tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower); 2000 2001 tty->rleft = rleft; 2002 tty->rright = rright; 2003 2004 if (rleft == 0 && rright == tty->sx - 1) 2005 snprintf(s, sizeof s, "\033[s"); 2006 else 2007 snprintf(s, sizeof s, "\033[%u;%us", rleft + 1, rright + 1); 2008 tty_puts(tty, s); 2009 tty->cx = tty->cy = UINT_MAX; 2010 } 2011 2012 /* 2013 * Move the cursor, unless it would wrap itself when the next character is 2014 * printed. 2015 */ 2016 static void 2017 tty_cursor_pane_unless_wrap(struct tty *tty, const struct tty_ctx *ctx, 2018 u_int cx, u_int cy) 2019 { 2020 if (!ctx->wrapped || 2021 !tty_pane_full_width(tty, ctx) || 2022 (tty->term->flags & TERM_EARLYWRAP) || 2023 ctx->xoff + cx != 0 || 2024 ctx->yoff + cy != tty->cy + 1 || 2025 tty->cx < tty->sx || 2026 tty->cy == tty->rlower) 2027 tty_cursor_pane(tty, ctx, cx, cy); 2028 else 2029 log_debug("%s: will wrap at %u,%u", __func__, tty->cx, tty->cy); 2030 } 2031 2032 /* Move cursor inside pane. */ 2033 static void 2034 tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy) 2035 { 2036 tty_cursor(tty, ctx->xoff + cx - ctx->ox, ctx->yoff + cy - ctx->oy); 2037 } 2038 2039 /* Move cursor to absolute position. */ 2040 void 2041 tty_cursor(struct tty *tty, u_int cx, u_int cy) 2042 { 2043 struct tty_term *term = tty->term; 2044 u_int thisx, thisy; 2045 int change; 2046 2047 if (cx > tty->sx - 1) 2048 cx = tty->sx - 1; 2049 2050 thisx = tty->cx; 2051 thisy = tty->cy; 2052 2053 /* No change. */ 2054 if (cx == thisx && cy == thisy) 2055 return; 2056 2057 /* Very end of the line, just use absolute movement. */ 2058 if (thisx > tty->sx - 1) 2059 goto absolute; 2060 2061 /* Move to home position (0, 0). */ 2062 if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) { 2063 tty_putcode(tty, TTYC_HOME); 2064 goto out; 2065 } 2066 2067 /* Zero on the next line. */ 2068 if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower && 2069 (!tty_use_margin(tty) || tty->rleft == 0)) { 2070 tty_putc(tty, '\r'); 2071 tty_putc(tty, '\n'); 2072 goto out; 2073 } 2074 2075 /* Moving column or row. */ 2076 if (cy == thisy) { 2077 /* 2078 * Moving column only, row staying the same. 2079 */ 2080 2081 /* To left edge. */ 2082 if (cx == 0 && (!tty_use_margin(tty) || tty->rleft == 0)) { 2083 tty_putc(tty, '\r'); 2084 goto out; 2085 } 2086 2087 /* One to the left. */ 2088 if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) { 2089 tty_putcode(tty, TTYC_CUB1); 2090 goto out; 2091 } 2092 2093 /* One to the right. */ 2094 if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) { 2095 tty_putcode(tty, TTYC_CUF1); 2096 goto out; 2097 } 2098 2099 /* Calculate difference. */ 2100 change = thisx - cx; /* +ve left, -ve right */ 2101 2102 /* 2103 * Use HPA if change is larger than absolute, otherwise move 2104 * the cursor with CUB/CUF. 2105 */ 2106 if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) { 2107 tty_putcode1(tty, TTYC_HPA, cx); 2108 goto out; 2109 } else if (change > 0 && tty_term_has(term, TTYC_CUB)) { 2110 if (change == 2 && tty_term_has(term, TTYC_CUB1)) { 2111 tty_putcode(tty, TTYC_CUB1); 2112 tty_putcode(tty, TTYC_CUB1); 2113 goto out; 2114 } 2115 tty_putcode1(tty, TTYC_CUB, change); 2116 goto out; 2117 } else if (change < 0 && tty_term_has(term, TTYC_CUF)) { 2118 tty_putcode1(tty, TTYC_CUF, -change); 2119 goto out; 2120 } 2121 } else if (cx == thisx) { 2122 /* 2123 * Moving row only, column staying the same. 2124 */ 2125 2126 /* One above. */ 2127 if (thisy != tty->rupper && 2128 cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) { 2129 tty_putcode(tty, TTYC_CUU1); 2130 goto out; 2131 } 2132 2133 /* One below. */ 2134 if (thisy != tty->rlower && 2135 cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) { 2136 tty_putcode(tty, TTYC_CUD1); 2137 goto out; 2138 } 2139 2140 /* Calculate difference. */ 2141 change = thisy - cy; /* +ve up, -ve down */ 2142 2143 /* 2144 * Try to use VPA if change is larger than absolute or if this 2145 * change would cross the scroll region, otherwise use CUU/CUD. 2146 */ 2147 if ((u_int) abs(change) > cy || 2148 (change < 0 && cy - change > tty->rlower) || 2149 (change > 0 && cy - change < tty->rupper)) { 2150 if (tty_term_has(term, TTYC_VPA)) { 2151 tty_putcode1(tty, TTYC_VPA, cy); 2152 goto out; 2153 } 2154 } else if (change > 0 && tty_term_has(term, TTYC_CUU)) { 2155 tty_putcode1(tty, TTYC_CUU, change); 2156 goto out; 2157 } else if (change < 0 && tty_term_has(term, TTYC_CUD)) { 2158 tty_putcode1(tty, TTYC_CUD, -change); 2159 goto out; 2160 } 2161 } 2162 2163 absolute: 2164 /* Absolute movement. */ 2165 tty_putcode2(tty, TTYC_CUP, cy, cx); 2166 2167 out: 2168 tty->cx = cx; 2169 tty->cy = cy; 2170 } 2171 2172 void 2173 tty_attributes(struct tty *tty, const struct grid_cell *gc, 2174 struct window_pane *wp) 2175 { 2176 struct grid_cell *tc = &tty->cell, gc2; 2177 int changed; 2178 2179 /* Ignore cell if it is the same as the last one. */ 2180 if (wp != NULL && 2181 (int)wp->id == tty->last_wp && 2182 ~(wp->flags & PANE_STYLECHANGED) && 2183 gc->attr == tty->last_cell.attr && 2184 gc->fg == tty->last_cell.fg && 2185 gc->bg == tty->last_cell.bg && 2186 gc->us == tty->last_cell.us) 2187 return; 2188 tty->last_wp = (wp != NULL ? (int)wp->id : -1); 2189 memcpy(&tty->last_cell, gc, sizeof tty->last_cell); 2190 2191 /* Copy cell and update default colours. */ 2192 memcpy(&gc2, gc, sizeof gc2); 2193 if (wp != NULL) 2194 tty_default_colours(&gc2, wp); 2195 2196 /* 2197 * If no setab, try to use the reverse attribute as a best-effort for a 2198 * non-default background. This is a bit of a hack but it doesn't do 2199 * any serious harm and makes a couple of applications happier. 2200 */ 2201 if (!tty_term_has(tty->term, TTYC_SETAB)) { 2202 if (gc2.attr & GRID_ATTR_REVERSE) { 2203 if (gc2.fg != 7 && !COLOUR_DEFAULT(gc2.fg)) 2204 gc2.attr &= ~GRID_ATTR_REVERSE; 2205 } else { 2206 if (gc2.bg != 0 && !COLOUR_DEFAULT(gc2.bg)) 2207 gc2.attr |= GRID_ATTR_REVERSE; 2208 } 2209 } 2210 2211 /* Fix up the colours if necessary. */ 2212 tty_check_fg(tty, wp, &gc2); 2213 tty_check_bg(tty, wp, &gc2); 2214 tty_check_us(tty, wp, &gc2); 2215 2216 /* 2217 * If any bits are being cleared or the underline colour is now default, 2218 * reset everything. 2219 */ 2220 if ((tc->attr & ~gc2.attr) || (tc->us != gc2.us && gc2.us == 0)) 2221 tty_reset(tty); 2222 2223 /* 2224 * Set the colours. This may call tty_reset() (so it comes next) and 2225 * may add to (NOT remove) the desired attributes. 2226 */ 2227 tty_colours(tty, &gc2); 2228 2229 /* Filter out attribute bits already set. */ 2230 changed = gc2.attr & ~tc->attr; 2231 tc->attr = gc2.attr; 2232 2233 /* Set the attributes. */ 2234 if (changed & GRID_ATTR_BRIGHT) 2235 tty_putcode(tty, TTYC_BOLD); 2236 if (changed & GRID_ATTR_DIM) 2237 tty_putcode(tty, TTYC_DIM); 2238 if (changed & GRID_ATTR_ITALICS) 2239 tty_set_italics(tty); 2240 if (changed & GRID_ATTR_ALL_UNDERSCORE) { 2241 if ((changed & GRID_ATTR_UNDERSCORE) || 2242 !tty_term_has(tty->term, TTYC_SMULX)) 2243 tty_putcode(tty, TTYC_SMUL); 2244 else if (changed & GRID_ATTR_UNDERSCORE_2) 2245 tty_putcode1(tty, TTYC_SMULX, 2); 2246 else if (changed & GRID_ATTR_UNDERSCORE_3) 2247 tty_putcode1(tty, TTYC_SMULX, 3); 2248 else if (changed & GRID_ATTR_UNDERSCORE_4) 2249 tty_putcode1(tty, TTYC_SMULX, 4); 2250 else if (changed & GRID_ATTR_UNDERSCORE_5) 2251 tty_putcode1(tty, TTYC_SMULX, 5); 2252 } 2253 if (changed & GRID_ATTR_BLINK) 2254 tty_putcode(tty, TTYC_BLINK); 2255 if (changed & GRID_ATTR_REVERSE) { 2256 if (tty_term_has(tty->term, TTYC_REV)) 2257 tty_putcode(tty, TTYC_REV); 2258 else if (tty_term_has(tty->term, TTYC_SMSO)) 2259 tty_putcode(tty, TTYC_SMSO); 2260 } 2261 if (changed & GRID_ATTR_HIDDEN) 2262 tty_putcode(tty, TTYC_INVIS); 2263 if (changed & GRID_ATTR_STRIKETHROUGH) 2264 tty_putcode(tty, TTYC_SMXX); 2265 if (changed & GRID_ATTR_OVERLINE) 2266 tty_putcode(tty, TTYC_SMOL); 2267 if ((changed & GRID_ATTR_CHARSET) && tty_acs_needed(tty)) 2268 tty_putcode(tty, TTYC_SMACS); 2269 } 2270 2271 static void 2272 tty_colours(struct tty *tty, const struct grid_cell *gc) 2273 { 2274 struct grid_cell *tc = &tty->cell; 2275 int have_ax; 2276 2277 /* No changes? Nothing is necessary. */ 2278 if (gc->fg == tc->fg && gc->bg == tc->bg && gc->us == tc->us) 2279 return; 2280 2281 /* 2282 * Is either the default colour? This is handled specially because the 2283 * best solution might be to reset both colours to default, in which 2284 * case if only one is default need to fall onward to set the other 2285 * colour. 2286 */ 2287 if (COLOUR_DEFAULT(gc->fg) || COLOUR_DEFAULT(gc->bg)) { 2288 /* 2289 * If don't have AX but do have op, send sgr0 (op can't 2290 * actually be used because it is sometimes the same as sgr0 2291 * and sometimes isn't). This resets both colours to default. 2292 * 2293 * Otherwise, try to set the default colour only as needed. 2294 */ 2295 have_ax = tty_term_flag(tty->term, TTYC_AX); 2296 if (!have_ax && tty_term_has(tty->term, TTYC_OP)) 2297 tty_reset(tty); 2298 else { 2299 if (COLOUR_DEFAULT(gc->fg) && !COLOUR_DEFAULT(tc->fg)) { 2300 if (have_ax) 2301 tty_puts(tty, "\033[39m"); 2302 else if (tc->fg != 7) 2303 tty_putcode1(tty, TTYC_SETAF, 7); 2304 tc->fg = gc->fg; 2305 } 2306 if (COLOUR_DEFAULT(gc->bg) && !COLOUR_DEFAULT(tc->bg)) { 2307 if (have_ax) 2308 tty_puts(tty, "\033[49m"); 2309 else if (tc->bg != 0) 2310 tty_putcode1(tty, TTYC_SETAB, 0); 2311 tc->bg = gc->bg; 2312 } 2313 } 2314 } 2315 2316 /* Set the foreground colour. */ 2317 if (!COLOUR_DEFAULT(gc->fg) && gc->fg != tc->fg) 2318 tty_colours_fg(tty, gc); 2319 2320 /* 2321 * Set the background colour. This must come after the foreground as 2322 * tty_colour_fg() can call tty_reset(). 2323 */ 2324 if (!COLOUR_DEFAULT(gc->bg) && gc->bg != tc->bg) 2325 tty_colours_bg(tty, gc); 2326 2327 /* Set the underscore color. */ 2328 if (gc->us != tc->us) 2329 tty_colours_us(tty, gc); 2330 } 2331 2332 static void 2333 tty_check_fg(struct tty *tty, struct window_pane *wp, struct grid_cell *gc) 2334 { 2335 u_char r, g, b; 2336 u_int colours; 2337 int c; 2338 2339 /* 2340 * Perform substitution if this pane has a palette. If the bright 2341 * attribute is set, use the bright entry in the palette by changing to 2342 * the aixterm colour. 2343 */ 2344 if (~gc->flags & GRID_FLAG_NOPALETTE) { 2345 c = gc->fg; 2346 if (c < 8 && gc->attr & GRID_ATTR_BRIGHT) 2347 c += 90; 2348 if ((c = window_pane_get_palette(wp, c)) != -1) 2349 gc->fg = c; 2350 } 2351 2352 /* Is this a 24-bit colour? */ 2353 if (gc->fg & COLOUR_FLAG_RGB) { 2354 /* Not a 24-bit terminal? Translate to 256-colour palette. */ 2355 if (!tty_term_has(tty->term, TTYC_SETRGBF)) { 2356 colour_split_rgb(gc->fg, &r, &g, &b); 2357 gc->fg = colour_find_rgb(r, g, b); 2358 } else 2359 return; 2360 } 2361 2362 /* How many colours does this terminal have? */ 2363 if ((tty->term->flags|tty->term_flags) & TERM_256COLOURS) 2364 colours = 256; 2365 else 2366 colours = tty_term_number(tty->term, TTYC_COLORS); 2367 2368 /* Is this a 256-colour colour? */ 2369 if (gc->fg & COLOUR_FLAG_256) { 2370 /* And not a 256 colour mode? */ 2371 if (colours != 256) { 2372 gc->fg = colour_256to16(gc->fg); 2373 if (gc->fg & 8) { 2374 gc->fg &= 7; 2375 if (colours >= 16) 2376 gc->fg += 90; 2377 else 2378 gc->attr |= GRID_ATTR_BRIGHT; 2379 } else 2380 gc->attr &= ~GRID_ATTR_BRIGHT; 2381 } 2382 return; 2383 } 2384 2385 /* Is this an aixterm colour? */ 2386 if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) { 2387 gc->fg -= 90; 2388 gc->attr |= GRID_ATTR_BRIGHT; 2389 } 2390 } 2391 2392 static void 2393 tty_check_bg(struct tty *tty, struct window_pane *wp, struct grid_cell *gc) 2394 { 2395 u_char r, g, b; 2396 u_int colours; 2397 int c; 2398 2399 /* Perform substitution if this pane has a palette. */ 2400 if (~gc->flags & GRID_FLAG_NOPALETTE) { 2401 if ((c = window_pane_get_palette(wp, gc->bg)) != -1) 2402 gc->bg = c; 2403 } 2404 2405 /* Is this a 24-bit colour? */ 2406 if (gc->bg & COLOUR_FLAG_RGB) { 2407 /* Not a 24-bit terminal? Translate to 256-colour palette. */ 2408 if (!tty_term_has(tty->term, TTYC_SETRGBB)) { 2409 colour_split_rgb(gc->bg, &r, &g, &b); 2410 gc->bg = colour_find_rgb(r, g, b); 2411 } else 2412 return; 2413 } 2414 2415 /* How many colours does this terminal have? */ 2416 if ((tty->term->flags|tty->term_flags) & TERM_256COLOURS) 2417 colours = 256; 2418 else 2419 colours = tty_term_number(tty->term, TTYC_COLORS); 2420 2421 /* Is this a 256-colour colour? */ 2422 if (gc->bg & COLOUR_FLAG_256) { 2423 /* 2424 * And not a 256 colour mode? Translate to 16-colour 2425 * palette. Bold background doesn't exist portably, so just 2426 * discard the bold bit if set. 2427 */ 2428 if (colours != 256) { 2429 gc->bg = colour_256to16(gc->bg); 2430 if (gc->bg & 8) { 2431 gc->bg &= 7; 2432 if (colours >= 16) 2433 gc->bg += 90; 2434 } 2435 } 2436 return; 2437 } 2438 2439 /* Is this an aixterm colour? */ 2440 if (gc->bg >= 90 && gc->bg <= 97 && colours < 16) 2441 gc->bg -= 90; 2442 } 2443 2444 static void 2445 tty_check_us(__unused struct tty *tty, struct window_pane *wp, struct grid_cell *gc) 2446 { 2447 int c; 2448 2449 /* Perform substitution if this pane has a palette. */ 2450 if (~gc->flags & GRID_FLAG_NOPALETTE) { 2451 if ((c = window_pane_get_palette(wp, gc->us)) != -1) 2452 gc->us = c; 2453 } 2454 2455 /* Underscore colour is set as RGB so convert a 256 colour to RGB. */ 2456 if (gc->us & COLOUR_FLAG_256) 2457 gc->us = colour_256toRGB (gc->us); 2458 } 2459 2460 static void 2461 tty_colours_fg(struct tty *tty, const struct grid_cell *gc) 2462 { 2463 struct grid_cell *tc = &tty->cell; 2464 char s[32]; 2465 2466 /* Is this a 24-bit or 256-colour colour? */ 2467 if (gc->fg & COLOUR_FLAG_RGB || gc->fg & COLOUR_FLAG_256) { 2468 if (tty_try_colour(tty, gc->fg, "38") == 0) 2469 goto save_fg; 2470 /* Should not get here, already converted in tty_check_fg. */ 2471 return; 2472 } 2473 2474 /* Is this an aixterm bright colour? */ 2475 if (gc->fg >= 90 && gc->fg <= 97) { 2476 if (tty->term_flags & TERM_256COLOURS) { 2477 xsnprintf(s, sizeof s, "\033[%dm", gc->fg); 2478 tty_puts(tty, s); 2479 } else 2480 tty_putcode1(tty, TTYC_SETAF, gc->fg - 90 + 8); 2481 goto save_fg; 2482 } 2483 2484 /* Otherwise set the foreground colour. */ 2485 tty_putcode1(tty, TTYC_SETAF, gc->fg); 2486 2487 save_fg: 2488 /* Save the new values in the terminal current cell. */ 2489 tc->fg = gc->fg; 2490 } 2491 2492 static void 2493 tty_colours_bg(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->bg & COLOUR_FLAG_RGB || gc->bg & COLOUR_FLAG_256) { 2500 if (tty_try_colour(tty, gc->bg, "48") == 0) 2501 goto save_bg; 2502 /* Should not get here, already converted in tty_check_bg. */ 2503 return; 2504 } 2505 2506 /* Is this an aixterm bright colour? */ 2507 if (gc->bg >= 90 && gc->bg <= 97) { 2508 if (tty->term_flags & TERM_256COLOURS) { 2509 xsnprintf(s, sizeof s, "\033[%dm", gc->bg + 10); 2510 tty_puts(tty, s); 2511 } else 2512 tty_putcode1(tty, TTYC_SETAB, gc->bg - 90 + 8); 2513 goto save_bg; 2514 } 2515 2516 /* Otherwise set the background colour. */ 2517 tty_putcode1(tty, TTYC_SETAB, gc->bg); 2518 2519 save_bg: 2520 /* Save the new values in the terminal current cell. */ 2521 tc->bg = gc->bg; 2522 } 2523 2524 static void 2525 tty_colours_us(struct tty *tty, const struct grid_cell *gc) 2526 { 2527 struct grid_cell *tc = &tty->cell; 2528 u_int c; 2529 u_char r, g, b; 2530 2531 /* Must be an RGB colour - this should never happen. */ 2532 if (~gc->us & COLOUR_FLAG_RGB) 2533 return; 2534 2535 /* 2536 * Setulc follows the ncurses(3) one argument "direct colour" 2537 * capability format. Calculate the colour value. 2538 */ 2539 colour_split_rgb(gc->us, &r, &g, &b); 2540 c = (65536 * r) + (256 * g) + b; 2541 2542 /* Write the colour. */ 2543 tty_putcode1(tty, TTYC_SETULC, c); 2544 2545 /* Save the new values in the terminal current cell. */ 2546 tc->us = gc->us; 2547 } 2548 2549 static int 2550 tty_try_colour(struct tty *tty, int colour, const char *type) 2551 { 2552 u_char r, g, b; 2553 char s[32]; 2554 2555 if (colour & COLOUR_FLAG_256) { 2556 /* 2557 * If the user has specified -2 to the client (meaning 2558 * TERM_256COLOURS is set), setaf and setab may not work (or 2559 * they may not want to use them), so send the usual sequence. 2560 * 2561 * Also if RGB is set, setaf and setab do not support the 256 2562 * colour palette so use the sequences directly there too. 2563 */ 2564 if ((tty->term_flags & TERM_256COLOURS) || 2565 tty_term_has(tty->term, TTYC_RGB)) 2566 goto fallback_256; 2567 2568 /* 2569 * If the terminfo entry has 256 colours and setaf and setab 2570 * exist, assume that they work correctly. 2571 */ 2572 if (tty->term->flags & TERM_256COLOURS) { 2573 if (*type == '3') { 2574 if (!tty_term_has(tty->term, TTYC_SETAF)) 2575 goto fallback_256; 2576 tty_putcode1(tty, TTYC_SETAF, colour & 0xff); 2577 } else { 2578 if (!tty_term_has(tty->term, TTYC_SETAB)) 2579 goto fallback_256; 2580 tty_putcode1(tty, TTYC_SETAB, colour & 0xff); 2581 } 2582 return (0); 2583 } 2584 goto fallback_256; 2585 } 2586 2587 if (colour & COLOUR_FLAG_RGB) { 2588 if (*type == '3') { 2589 if (!tty_term_has(tty->term, TTYC_SETRGBF)) 2590 return (-1); 2591 colour_split_rgb(colour & 0xffffff, &r, &g, &b); 2592 tty_putcode3(tty, TTYC_SETRGBF, r, g, b); 2593 } else { 2594 if (!tty_term_has(tty->term, TTYC_SETRGBB)) 2595 return (-1); 2596 colour_split_rgb(colour & 0xffffff, &r, &g, &b); 2597 tty_putcode3(tty, TTYC_SETRGBB, r, g, b); 2598 } 2599 return (0); 2600 } 2601 2602 return (-1); 2603 2604 fallback_256: 2605 xsnprintf(s, sizeof s, "\033[%s;5;%dm", type, colour & 0xff); 2606 log_debug("%s: 256 colour fallback: %s", tty->client->name, s); 2607 tty_puts(tty, s); 2608 return (0); 2609 } 2610 2611 static void 2612 tty_default_colours(struct grid_cell *gc, struct window_pane *wp) 2613 { 2614 struct options *oo = wp->options; 2615 struct style *style, *active_style; 2616 int c; 2617 2618 if (wp->flags & PANE_STYLECHANGED) { 2619 wp->flags &= ~PANE_STYLECHANGED; 2620 2621 active_style = options_get_style(oo, "window-active-style"); 2622 style = options_get_style(oo, "window-style"); 2623 2624 style_copy(&wp->cached_active_style, active_style); 2625 style_copy(&wp->cached_style, style); 2626 } else { 2627 active_style = &wp->cached_active_style; 2628 style = &wp->cached_style; 2629 } 2630 2631 if (gc->fg == 8) { 2632 if (wp == wp->window->active && active_style->gc.fg != 8) 2633 gc->fg = active_style->gc.fg; 2634 else 2635 gc->fg = style->gc.fg; 2636 2637 if (gc->fg != 8) { 2638 c = window_pane_get_palette(wp, gc->fg); 2639 if (c != -1) 2640 gc->fg = c; 2641 } 2642 } 2643 2644 if (gc->bg == 8) { 2645 if (wp == wp->window->active && active_style->gc.bg != 8) 2646 gc->bg = active_style->gc.bg; 2647 else 2648 gc->bg = style->gc.bg; 2649 2650 if (gc->bg != 8) { 2651 c = window_pane_get_palette(wp, gc->bg); 2652 if (c != -1) 2653 gc->bg = c; 2654 } 2655 } 2656 } 2657 2658 static void 2659 tty_default_attributes(struct tty *tty, struct window_pane *wp, u_int bg) 2660 { 2661 static struct grid_cell gc; 2662 2663 memcpy(&gc, &grid_default_cell, sizeof gc); 2664 gc.bg = bg; 2665 tty_attributes(tty, &gc, wp); 2666 } 2667