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 *); 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 *, int *, struct grid_cell *); 49 static void tty_check_bg(struct tty *, int *, struct grid_cell *); 50 static void tty_check_us(struct tty *, int *, struct grid_cell *); 51 static void tty_colours_fg(struct tty *, const struct grid_cell *); 52 static void tty_colours_bg(struct tty *, const struct grid_cell *); 53 static void tty_colours_us(struct tty *, const struct grid_cell *); 54 55 static void tty_region_pane(struct tty *, const struct tty_ctx *, u_int, 56 u_int); 57 static void tty_region(struct tty *, u_int, u_int); 58 static void tty_margin_pane(struct tty *, const struct tty_ctx *); 59 static void tty_margin(struct tty *, u_int, u_int); 60 static int tty_large_region(struct tty *, const struct tty_ctx *); 61 static int tty_fake_bce(const struct tty *, const struct grid_cell *, 62 u_int); 63 static void tty_redraw_region(struct tty *, const struct tty_ctx *); 64 static void tty_emulate_repeat(struct tty *, enum tty_code_code, 65 enum tty_code_code, u_int); 66 static void tty_repeat_space(struct tty *, u_int); 67 static void tty_draw_pane(struct tty *, const struct tty_ctx *, u_int); 68 static void tty_default_attributes(struct tty *, const struct grid_cell *, 69 int *, u_int); 70 71 #define tty_use_margin(tty) \ 72 (tty->term->flags & TERM_DECSLRM) 73 #define tty_full_width(tty, ctx) \ 74 ((ctx)->xoff == 0 && (ctx)->sx >= (tty)->sx) 75 76 #define TTY_BLOCK_INTERVAL (100000 /* 100 milliseconds */) 77 #define TTY_BLOCK_START(tty) (1 + ((tty)->sx * (tty)->sy) * 8) 78 #define TTY_BLOCK_STOP(tty) (1 + ((tty)->sx * (tty)->sy) / 8) 79 80 void 81 tty_create_log(void) 82 { 83 char name[64]; 84 85 xsnprintf(name, sizeof name, "tmux-out-%ld.log", (long)getpid()); 86 87 tty_log_fd = open(name, O_WRONLY|O_CREAT|O_TRUNC, 0644); 88 if (tty_log_fd != -1 && fcntl(tty_log_fd, F_SETFD, FD_CLOEXEC) == -1) 89 fatal("fcntl failed"); 90 } 91 92 int 93 tty_init(struct tty *tty, struct client *c) 94 { 95 if (!isatty(c->fd)) 96 return (-1); 97 98 memset(tty, 0, sizeof *tty); 99 tty->client = c; 100 101 tty->cstyle = 0; 102 tty->ccolour = xstrdup(""); 103 104 if (tcgetattr(c->fd, &tty->tio) != 0) 105 return (-1); 106 return (0); 107 } 108 109 void 110 tty_resize(struct tty *tty) 111 { 112 struct client *c = tty->client; 113 struct winsize ws; 114 u_int sx, sy, xpixel, ypixel; 115 116 if (ioctl(c->fd, TIOCGWINSZ, &ws) != -1) { 117 sx = ws.ws_col; 118 if (sx == 0) { 119 sx = 80; 120 xpixel = 0; 121 } else 122 xpixel = ws.ws_xpixel / sx; 123 sy = ws.ws_row; 124 if (sy == 0) { 125 sy = 24; 126 ypixel = 0; 127 } else 128 ypixel = ws.ws_ypixel / sy; 129 } else { 130 sx = 80; 131 sy = 24; 132 xpixel = 0; 133 ypixel = 0; 134 } 135 log_debug("%s: %s now %ux%u (%ux%u)", __func__, c->name, sx, sy, 136 xpixel, ypixel); 137 tty_set_size(tty, sx, sy, xpixel, ypixel); 138 tty_invalidate(tty); 139 } 140 141 void 142 tty_set_size(struct tty *tty, u_int sx, u_int sy, u_int xpixel, u_int ypixel) 143 { 144 tty->sx = sx; 145 tty->sy = sy; 146 tty->xpixel = xpixel; 147 tty->ypixel = ypixel; 148 } 149 150 static void 151 tty_read_callback(__unused int fd, __unused short events, void *data) 152 { 153 struct tty *tty = data; 154 struct client *c = tty->client; 155 const char *name = c->name; 156 size_t size = EVBUFFER_LENGTH(tty->in); 157 int nread; 158 159 nread = evbuffer_read(tty->in, c->fd, -1); 160 if (nread == 0 || nread == -1) { 161 if (nread == 0) 162 log_debug("%s: read closed", name); 163 else 164 log_debug("%s: read error: %s", name, strerror(errno)); 165 event_del(&tty->event_in); 166 server_client_lost(tty->client); 167 return; 168 } 169 log_debug("%s: read %d bytes (already %zu)", 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, c->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 struct client *c = tty->client; 251 252 tty->term = tty_term_create(tty, c->term_name, c->term_caps, 253 c->term_ncaps, &c->term_features, cause); 254 if (tty->term == NULL) { 255 tty_close(tty); 256 return (-1); 257 } 258 tty->flags |= TTY_OPENED; 259 260 tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_BLOCK|TTY_TIMER); 261 262 event_set(&tty->event_in, c->fd, EV_PERSIST|EV_READ, 263 tty_read_callback, tty); 264 tty->in = evbuffer_new(); 265 if (tty->in == NULL) 266 fatal("out of memory"); 267 268 event_set(&tty->event_out, c->fd, EV_WRITE, tty_write_callback, tty); 269 tty->out = evbuffer_new(); 270 if (tty->out == NULL) 271 fatal("out of memory"); 272 273 evtimer_set(&tty->timer, tty_timer_callback, tty); 274 275 tty_start_tty(tty); 276 277 tty_keys_build(tty); 278 279 return (0); 280 } 281 282 static void 283 tty_start_timer_callback(__unused int fd, __unused short events, void *data) 284 { 285 struct tty *tty = data; 286 struct client *c = tty->client; 287 288 log_debug("%s: start timer fired", c->name); 289 if ((tty->flags & (TTY_HAVEDA|TTY_HAVEXDA)) == 0) 290 tty_update_features(tty); 291 tty->flags |= (TTY_HAVEDA|TTY_HAVEXDA); 292 } 293 294 void 295 tty_start_tty(struct tty *tty) 296 { 297 struct client *c = tty->client; 298 struct termios tio; 299 struct timeval tv = { .tv_sec = 1 }; 300 301 setblocking(c->fd, 0); 302 event_add(&tty->event_in, NULL); 303 304 memcpy(&tio, &tty->tio, sizeof tio); 305 tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP); 306 tio.c_iflag |= IGNBRK; 307 tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET); 308 tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|ECHOPRT| 309 ECHOKE|ISIG); 310 tio.c_cc[VMIN] = 1; 311 tio.c_cc[VTIME] = 0; 312 if (tcsetattr(c->fd, TCSANOW, &tio) == 0) 313 tcflush(c->fd, TCIOFLUSH); 314 315 tty_putcode(tty, TTYC_SMCUP); 316 317 tty_putcode(tty, TTYC_SMKX); 318 tty_putcode(tty, TTYC_CLEAR); 319 320 if (tty_acs_needed(tty)) { 321 log_debug("%s: using capabilities for ACS", c->name); 322 tty_putcode(tty, TTYC_ENACS); 323 } else 324 log_debug("%s: using UTF-8 for ACS", c->name); 325 326 tty_putcode(tty, TTYC_CNORM); 327 if (tty_term_has(tty->term, TTYC_KMOUS)) { 328 tty_puts(tty, "\033[?1000l\033[?1002l\033[?1003l"); 329 tty_puts(tty, "\033[?1006l\033[?1005l"); 330 } 331 332 evtimer_set(&tty->start_timer, tty_start_timer_callback, tty); 333 evtimer_add(&tty->start_timer, &tv); 334 335 tty->flags |= TTY_STARTED; 336 tty_invalidate(tty); 337 338 if (*tty->ccolour != '\0') 339 tty_force_cursor_colour(tty, ""); 340 341 tty->mouse_drag_flag = 0; 342 tty->mouse_drag_update = NULL; 343 tty->mouse_drag_release = NULL; 344 } 345 346 void 347 tty_send_requests(struct tty *tty) 348 { 349 if (~tty->flags & TTY_STARTED) 350 return; 351 352 if (tty->term->flags & TERM_VT100LIKE) { 353 if (~tty->flags & TTY_HAVEDA) 354 tty_puts(tty, "\033[>c"); 355 if (~tty->flags & TTY_HAVEXDA) 356 tty_puts(tty, "\033[>q"); 357 } else 358 tty->flags |= (TTY_HAVEDA|TTY_HAVEXDA); 359 } 360 361 void 362 tty_stop_tty(struct tty *tty) 363 { 364 struct client *c = tty->client; 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(c->fd, TIOCGWINSZ, &ws) == -1) 385 return; 386 if (tcsetattr(c->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, tty_term_string(tty->term, TTYC_DSBP)); 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[?1003l"); 409 tty_raw(tty, "\033[?1006l\033[?1005l"); 410 } 411 412 if (tty->term->flags & TERM_VT100LIKE) 413 tty_raw(tty, "\033[?7727l"); 414 tty_raw(tty, tty_term_string(tty->term, TTYC_DSFCS)); 415 tty_raw(tty, tty_term_string(tty->term, TTYC_DSEKS)); 416 417 if (tty_use_margin(tty)) 418 tty_raw(tty, tty_term_string(tty->term, TTYC_DSMG)); 419 tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP)); 420 421 setblocking(c->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 } 443 444 void 445 tty_free(struct tty *tty) 446 { 447 tty_close(tty); 448 free(tty->ccolour); 449 } 450 451 void 452 tty_update_features(struct tty *tty) 453 { 454 struct client *c = tty->client; 455 456 if (tty_apply_features(tty->term, c->term_features)) 457 tty_term_apply_overrides(tty->term); 458 459 if (tty_use_margin(tty)) 460 tty_putcode(tty, TTYC_ENMG); 461 if (options_get_number(global_options, "extended-keys")) 462 tty_puts(tty, tty_term_string(tty->term, TTYC_ENEKS)); 463 if (options_get_number(global_options, "focus-events")) 464 tty_puts(tty, tty_term_string(tty->term, TTYC_ENFCS)); 465 if (tty->term->flags & TERM_VT100LIKE) 466 tty_puts(tty, "\033[?7727h"); 467 } 468 469 void 470 tty_raw(struct tty *tty, const char *s) 471 { 472 struct client *c = tty->client; 473 ssize_t n, slen; 474 u_int i; 475 476 slen = strlen(s); 477 for (i = 0; i < 5; i++) { 478 n = write(c->fd, s, slen); 479 if (n >= 0) { 480 s += n; 481 slen -= n; 482 if (slen == 0) 483 break; 484 } else if (n == -1 && errno != EAGAIN) 485 break; 486 usleep(100); 487 } 488 } 489 490 void 491 tty_putcode(struct tty *tty, enum tty_code_code code) 492 { 493 tty_puts(tty, tty_term_string(tty->term, code)); 494 } 495 496 void 497 tty_putcode1(struct tty *tty, enum tty_code_code code, int a) 498 { 499 if (a < 0) 500 return; 501 tty_puts(tty, tty_term_string1(tty->term, code, a)); 502 } 503 504 void 505 tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b) 506 { 507 if (a < 0 || b < 0) 508 return; 509 tty_puts(tty, tty_term_string2(tty->term, code, a, b)); 510 } 511 512 void 513 tty_putcode3(struct tty *tty, enum tty_code_code code, int a, int b, int c) 514 { 515 if (a < 0 || b < 0 || c < 0) 516 return; 517 tty_puts(tty, tty_term_string3(tty->term, code, a, b, c)); 518 } 519 520 void 521 tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a) 522 { 523 if (a != NULL) 524 tty_puts(tty, tty_term_ptr1(tty->term, code, a)); 525 } 526 527 void 528 tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a, 529 const void *b) 530 { 531 if (a != NULL && b != NULL) 532 tty_puts(tty, tty_term_ptr2(tty->term, code, a, b)); 533 } 534 535 static void 536 tty_add(struct tty *tty, const char *buf, size_t len) 537 { 538 struct client *c = tty->client; 539 540 if (tty->flags & TTY_BLOCK) { 541 tty->discarded += len; 542 return; 543 } 544 545 evbuffer_add(tty->out, buf, len); 546 log_debug("%s: %.*s", c->name, (int)len, buf); 547 c->written += len; 548 549 if (tty_log_fd != -1) 550 write(tty_log_fd, buf, len); 551 if (tty->flags & TTY_STARTED) 552 event_add(&tty->event_out, NULL); 553 } 554 555 void 556 tty_puts(struct tty *tty, const char *s) 557 { 558 if (*s != '\0') 559 tty_add(tty, s, strlen(s)); 560 } 561 562 void 563 tty_putc(struct tty *tty, u_char ch) 564 { 565 const char *acs; 566 567 if ((tty->term->flags & TERM_NOAM) && 568 ch >= 0x20 && ch != 0x7f && 569 tty->cy == tty->sy - 1 && 570 tty->cx + 1 >= tty->sx) 571 return; 572 573 if (tty->cell.attr & GRID_ATTR_CHARSET) { 574 acs = tty_acs_get(tty, ch); 575 if (acs != NULL) 576 tty_add(tty, acs, strlen(acs)); 577 else 578 tty_add(tty, (char *)&ch, 1); 579 } else 580 tty_add(tty, (char *)&ch, 1); 581 582 if (ch >= 0x20 && ch != 0x7f) { 583 if (tty->cx >= tty->sx) { 584 tty->cx = 1; 585 if (tty->cy != tty->rlower) 586 tty->cy++; 587 588 /* 589 * On !am terminals, force the cursor position to where 590 * we think it should be after a line wrap - this means 591 * it works on sensible terminals as well. 592 */ 593 if (tty->term->flags & TERM_NOAM) 594 tty_putcode2(tty, TTYC_CUP, tty->cy, tty->cx); 595 } else 596 tty->cx++; 597 } 598 } 599 600 void 601 tty_putn(struct tty *tty, const void *buf, size_t len, u_int width) 602 { 603 if ((tty->term->flags & TERM_NOAM) && 604 tty->cy == tty->sy - 1 && 605 tty->cx + len >= tty->sx) 606 len = tty->sx - tty->cx - 1; 607 608 tty_add(tty, buf, len); 609 if (tty->cx + width > tty->sx) { 610 tty->cx = (tty->cx + width) - tty->sx; 611 if (tty->cx <= tty->sx) 612 tty->cy++; 613 else 614 tty->cx = tty->cy = UINT_MAX; 615 } else 616 tty->cx += width; 617 } 618 619 static void 620 tty_set_italics(struct tty *tty) 621 { 622 const char *s; 623 624 if (tty_term_has(tty->term, TTYC_SITM)) { 625 s = options_get_string(global_options, "default-terminal"); 626 if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) { 627 tty_putcode(tty, TTYC_SITM); 628 return; 629 } 630 } 631 tty_putcode(tty, TTYC_SMSO); 632 } 633 634 void 635 tty_set_title(struct tty *tty, const char *title) 636 { 637 if (!tty_term_has(tty->term, TTYC_TSL) || 638 !tty_term_has(tty->term, TTYC_FSL)) 639 return; 640 641 tty_putcode(tty, TTYC_TSL); 642 tty_puts(tty, title); 643 tty_putcode(tty, TTYC_FSL); 644 } 645 646 static void 647 tty_force_cursor_colour(struct tty *tty, const char *ccolour) 648 { 649 if (*ccolour == '\0') 650 tty_putcode(tty, TTYC_CR); 651 else 652 tty_putcode_ptr1(tty, TTYC_CS, ccolour); 653 free(tty->ccolour); 654 tty->ccolour = xstrdup(ccolour); 655 } 656 657 void 658 tty_update_mode(struct tty *tty, int mode, struct screen *s) 659 { 660 struct client *c = tty->client; 661 int changed; 662 663 if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0) 664 tty_force_cursor_colour(tty, s->ccolour); 665 666 if (tty->flags & TTY_NOCURSOR) 667 mode &= ~MODE_CURSOR; 668 669 changed = mode ^ tty->mode; 670 if (changed != 0) 671 log_debug("%s: update mode %x to %x", c->name, tty->mode, mode); 672 673 /* 674 * The cursor blinking flag can be reset by setting the cursor style, so 675 * set the style first. 676 */ 677 if (s != NULL && tty->cstyle != s->cstyle) { 678 if (tty_term_has(tty->term, TTYC_SS)) { 679 if (s->cstyle == 0 && tty_term_has(tty->term, TTYC_SE)) 680 tty_putcode(tty, TTYC_SE); 681 else 682 tty_putcode1(tty, TTYC_SS, s->cstyle); 683 } 684 tty->cstyle = s->cstyle; 685 changed |= (MODE_CURSOR|MODE_BLINKING); 686 } 687 688 /* 689 * Cursor invisible (RM ?25) overrides cursor blinking (SM ?12 or RM 690 * 34), and we need to be careful not send cnorm after cvvis since it 691 * can undo it. 692 */ 693 if (changed & (MODE_CURSOR|MODE_BLINKING)) { 694 log_debug("%s: cursor %s, %sblinking", __func__, 695 (mode & MODE_CURSOR) ? "on" : "off", 696 (mode & MODE_BLINKING) ? "" : "not "); 697 if (~mode & MODE_CURSOR) 698 tty_putcode(tty, TTYC_CIVIS); 699 else if (mode & MODE_BLINKING) { 700 tty_putcode(tty, TTYC_CNORM); 701 if (tty_term_has(tty->term, TTYC_CVVIS)) 702 tty_putcode(tty, TTYC_CVVIS); 703 } else 704 tty_putcode(tty, TTYC_CNORM); 705 } 706 707 if ((changed & ALL_MOUSE_MODES) && 708 tty_term_has(tty->term, TTYC_KMOUS)) { 709 /* 710 * If the mouse modes have changed, clear any that are set and 711 * apply again. There are differences in how terminals track 712 * the various bits. 713 */ 714 if (tty->mode & MODE_MOUSE_SGR) 715 tty_puts(tty, "\033[?1006l"); 716 if (tty->mode & MODE_MOUSE_STANDARD) 717 tty_puts(tty, "\033[?1000l"); 718 if (tty->mode & MODE_MOUSE_BUTTON) 719 tty_puts(tty, "\033[?1002l"); 720 if (tty->mode & MODE_MOUSE_ALL) 721 tty_puts(tty, "\033[?1003l"); 722 if (mode & ALL_MOUSE_MODES) 723 tty_puts(tty, "\033[?1006h"); 724 if (mode & MODE_MOUSE_STANDARD) 725 tty_puts(tty, "\033[?1000h"); 726 if (mode & MODE_MOUSE_BUTTON) 727 tty_puts(tty, "\033[?1002h"); 728 if (mode & MODE_MOUSE_ALL) 729 tty_puts(tty, "\033[?1003h"); 730 } 731 if (changed & MODE_BRACKETPASTE) { 732 if (mode & MODE_BRACKETPASTE) 733 tty_putcode(tty, TTYC_ENBP); 734 else 735 tty_putcode(tty, TTYC_DSBP); 736 } 737 tty->mode = mode; 738 } 739 740 static void 741 tty_emulate_repeat(struct tty *tty, enum tty_code_code code, 742 enum tty_code_code code1, u_int n) 743 { 744 if (tty_term_has(tty->term, code)) 745 tty_putcode1(tty, code, n); 746 else { 747 while (n-- > 0) 748 tty_putcode(tty, code1); 749 } 750 } 751 752 static void 753 tty_repeat_space(struct tty *tty, u_int n) 754 { 755 static char s[500]; 756 757 if (*s != ' ') 758 memset(s, ' ', sizeof s); 759 760 while (n > sizeof s) { 761 tty_putn(tty, s, sizeof s, sizeof s); 762 n -= sizeof s; 763 } 764 if (n != 0) 765 tty_putn(tty, s, n, n); 766 } 767 768 /* Is this window bigger than the terminal? */ 769 int 770 tty_window_bigger(struct tty *tty) 771 { 772 struct client *c = tty->client; 773 struct window *w = c->session->curw->window; 774 775 return (tty->sx < w->sx || tty->sy - status_line_size(c) < w->sy); 776 } 777 778 /* What offset should this window be drawn at? */ 779 int 780 tty_window_offset(struct tty *tty, u_int *ox, u_int *oy, u_int *sx, u_int *sy) 781 { 782 *ox = tty->oox; 783 *oy = tty->ooy; 784 *sx = tty->osx; 785 *sy = tty->osy; 786 787 return (tty->oflag); 788 } 789 790 /* What offset should this window be drawn at? */ 791 static int 792 tty_window_offset1(struct tty *tty, u_int *ox, u_int *oy, u_int *sx, u_int *sy) 793 { 794 struct client *c = tty->client; 795 struct window *w = c->session->curw->window; 796 struct window_pane *wp = server_client_get_pane(c); 797 u_int cx, cy, lines; 798 799 lines = status_line_size(c); 800 801 if (tty->sx >= w->sx && tty->sy - lines >= w->sy) { 802 *ox = 0; 803 *oy = 0; 804 *sx = w->sx; 805 *sy = w->sy; 806 807 c->pan_window = NULL; 808 return (0); 809 } 810 811 *sx = tty->sx; 812 *sy = tty->sy - lines; 813 814 if (c->pan_window == w) { 815 if (*sx >= w->sx) 816 c->pan_ox = 0; 817 else if (c->pan_ox + *sx > w->sx) 818 c->pan_ox = w->sx - *sx; 819 *ox = c->pan_ox; 820 if (*sy >= w->sy) 821 c->pan_oy = 0; 822 else if (c->pan_oy + *sy > w->sy) 823 c->pan_oy = w->sy - *sy; 824 *oy = c->pan_oy; 825 return (1); 826 } 827 828 if (~wp->screen->mode & MODE_CURSOR) { 829 *ox = 0; 830 *oy = 0; 831 } else { 832 cx = wp->xoff + wp->screen->cx; 833 cy = wp->yoff + wp->screen->cy; 834 835 if (cx < *sx) 836 *ox = 0; 837 else if (cx > w->sx - *sx) 838 *ox = w->sx - *sx; 839 else 840 *ox = cx - *sx / 2; 841 842 if (cy < *sy) 843 *oy = 0; 844 else if (cy > w->sy - *sy) 845 *oy = w->sy - *sy; 846 else 847 *oy = cy - *sy / 2; 848 } 849 850 c->pan_window = NULL; 851 return (1); 852 } 853 854 /* Update stored offsets for a window and redraw if necessary. */ 855 void 856 tty_update_window_offset(struct window *w) 857 { 858 struct client *c; 859 860 TAILQ_FOREACH(c, &clients, entry) { 861 if (c->session != NULL && c->session->curw->window == w) 862 tty_update_client_offset(c); 863 } 864 } 865 866 /* Update stored offsets for a client and redraw if necessary. */ 867 void 868 tty_update_client_offset(struct client *c) 869 { 870 u_int ox, oy, sx, sy; 871 872 if (~c->flags & CLIENT_TERMINAL) 873 return; 874 875 c->tty.oflag = tty_window_offset1(&c->tty, &ox, &oy, &sx, &sy); 876 if (ox == c->tty.oox && 877 oy == c->tty.ooy && 878 sx == c->tty.osx && 879 sy == c->tty.osy) 880 return; 881 882 log_debug ("%s: %s offset has changed (%u,%u %ux%u -> %u,%u %ux%u)", 883 __func__, c->name, c->tty.oox, c->tty.ooy, c->tty.osx, c->tty.osy, 884 ox, oy, sx, sy); 885 886 c->tty.oox = ox; 887 c->tty.ooy = oy; 888 c->tty.osx = sx; 889 c->tty.osy = sy; 890 891 c->flags |= (CLIENT_REDRAWWINDOW|CLIENT_REDRAWSTATUS); 892 } 893 894 /* Get a palette entry. */ 895 static int 896 tty_get_palette(int *palette, int c) 897 { 898 int new; 899 900 if (palette == NULL) 901 return (-1); 902 903 new = -1; 904 if (c < 8) 905 new = palette[c]; 906 else if (c >= 90 && c <= 97) 907 new = palette[8 + c - 90]; 908 else if (c & COLOUR_FLAG_256) 909 new = palette[c & ~COLOUR_FLAG_256]; 910 if (new == 0) 911 return (-1); 912 return (new); 913 } 914 915 /* 916 * Is the region large enough to be worth redrawing once later rather than 917 * probably several times now? Currently yes if it is more than 50% of the 918 * pane. 919 */ 920 static int 921 tty_large_region(__unused struct tty *tty, const struct tty_ctx *ctx) 922 { 923 return (ctx->orlower - ctx->orupper >= ctx->sy / 2); 924 } 925 926 /* 927 * Return if BCE is needed but the terminal doesn't have it - it'll need to be 928 * emulated. 929 */ 930 static int 931 tty_fake_bce(const struct tty *tty, const struct grid_cell *gc, u_int bg) 932 { 933 if (tty_term_flag(tty->term, TTYC_BCE)) 934 return (0); 935 if (!COLOUR_DEFAULT(bg) || !COLOUR_DEFAULT(gc->bg)) 936 return (1); 937 return (0); 938 } 939 940 /* 941 * Redraw scroll region using data from screen (already updated). Used when 942 * CSR not supported, or window is a pane that doesn't take up the full 943 * width of the terminal. 944 */ 945 static void 946 tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx) 947 { 948 struct client *c = tty->client; 949 u_int i; 950 951 /* 952 * If region is large, schedule a redraw. In most cases this is likely 953 * to be followed by some more scrolling. 954 */ 955 if (tty_large_region(tty, ctx)) { 956 log_debug("%s: %s large redraw", __func__, c->name); 957 ctx->redraw_cb(ctx); 958 return; 959 } 960 961 for (i = ctx->orupper; i <= ctx->orlower; i++) 962 tty_draw_pane(tty, ctx, i); 963 } 964 965 /* Is this position visible in the pane? */ 966 static int 967 tty_is_visible(__unused struct tty *tty, const struct tty_ctx *ctx, u_int px, 968 u_int py, u_int nx, u_int ny) 969 { 970 u_int xoff = ctx->rxoff + px, yoff = ctx->ryoff + py; 971 972 if (!ctx->bigger) 973 return (1); 974 975 if (xoff + nx <= ctx->wox || xoff >= ctx->wox + ctx->wsx || 976 yoff + ny <= ctx->woy || yoff >= ctx->woy + ctx->wsy) 977 return (0); 978 return (1); 979 } 980 981 /* Clamp line position to visible part of pane. */ 982 static int 983 tty_clamp_line(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py, 984 u_int nx, u_int *i, u_int *x, u_int *rx, u_int *ry) 985 { 986 u_int xoff = ctx->rxoff + px; 987 988 if (!tty_is_visible(tty, ctx, px, py, nx, 1)) 989 return (0); 990 *ry = ctx->yoff + py - ctx->woy; 991 992 if (xoff >= ctx->wox && xoff + nx <= ctx->wox + ctx->wsx) { 993 /* All visible. */ 994 *i = 0; 995 *x = ctx->xoff + px - ctx->wox; 996 *rx = nx; 997 } else if (xoff < ctx->wox && xoff + nx > ctx->wox + ctx->wsx) { 998 /* Both left and right not visible. */ 999 *i = ctx->wox; 1000 *x = 0; 1001 *rx = ctx->wsx; 1002 } else if (xoff < ctx->wox) { 1003 /* Left not visible. */ 1004 *i = ctx->wox - (ctx->xoff + px); 1005 *x = 0; 1006 *rx = nx - *i; 1007 } else { 1008 /* Right not visible. */ 1009 *i = 0; 1010 *x = (ctx->xoff + px) - ctx->wox; 1011 *rx = ctx->wsx - *x; 1012 } 1013 if (*rx > nx) 1014 fatalx("%s: x too big, %u > %u", __func__, *rx, nx); 1015 1016 return (1); 1017 } 1018 1019 /* Clear a line. */ 1020 static void 1021 tty_clear_line(struct tty *tty, const struct grid_cell *defaults, u_int py, 1022 u_int px, u_int nx, u_int bg) 1023 { 1024 struct client *c = tty->client; 1025 1026 log_debug("%s: %s, %u at %u,%u", __func__, c->name, nx, px, py); 1027 1028 /* Nothing to clear. */ 1029 if (nx == 0) 1030 return; 1031 1032 /* If genuine BCE is available, can try escape sequences. */ 1033 if (!tty_fake_bce(tty, defaults, bg)) { 1034 /* Off the end of the line, use EL if available. */ 1035 if (px + nx >= tty->sx && tty_term_has(tty->term, TTYC_EL)) { 1036 tty_cursor(tty, px, py); 1037 tty_putcode(tty, TTYC_EL); 1038 return; 1039 } 1040 1041 /* At the start of the line. Use EL1. */ 1042 if (px == 0 && tty_term_has(tty->term, TTYC_EL1)) { 1043 tty_cursor(tty, px + nx - 1, py); 1044 tty_putcode(tty, TTYC_EL1); 1045 return; 1046 } 1047 1048 /* Section of line. Use ECH if possible. */ 1049 if (tty_term_has(tty->term, TTYC_ECH)) { 1050 tty_cursor(tty, px, py); 1051 tty_putcode1(tty, TTYC_ECH, nx); 1052 return; 1053 } 1054 } 1055 1056 /* Couldn't use an escape sequence, use spaces. */ 1057 tty_cursor(tty, px, py); 1058 tty_repeat_space(tty, nx); 1059 } 1060 1061 /* Clear a line, adjusting to visible part of pane. */ 1062 static void 1063 tty_clear_pane_line(struct tty *tty, const struct tty_ctx *ctx, u_int py, 1064 u_int px, u_int nx, u_int bg) 1065 { 1066 struct client *c = tty->client; 1067 u_int i, x, rx, ry; 1068 1069 log_debug("%s: %s, %u at %u,%u", __func__, c->name, nx, px, py); 1070 1071 if (tty_clamp_line(tty, ctx, px, py, nx, &i, &x, &rx, &ry)) 1072 tty_clear_line(tty, &ctx->defaults, ry, x, rx, bg); 1073 } 1074 1075 /* Clamp area position to visible part of pane. */ 1076 static int 1077 tty_clamp_area(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py, 1078 u_int nx, u_int ny, u_int *i, u_int *j, u_int *x, u_int *y, u_int *rx, 1079 u_int *ry) 1080 { 1081 u_int xoff = ctx->rxoff + px, yoff = ctx->ryoff + py; 1082 1083 if (!tty_is_visible(tty, ctx, px, py, nx, ny)) 1084 return (0); 1085 1086 if (xoff >= ctx->wox && xoff + nx <= ctx->wox + ctx->wsx) { 1087 /* All visible. */ 1088 *i = 0; 1089 *x = ctx->xoff + px - ctx->wox; 1090 *rx = nx; 1091 } else if (xoff < ctx->wox && xoff + nx > ctx->wox + ctx->wsx) { 1092 /* Both left and right not visible. */ 1093 *i = ctx->wox; 1094 *x = 0; 1095 *rx = ctx->wsx; 1096 } else if (xoff < ctx->wox) { 1097 /* Left not visible. */ 1098 *i = ctx->wox - (ctx->xoff + px); 1099 *x = 0; 1100 *rx = nx - *i; 1101 } else { 1102 /* Right not visible. */ 1103 *i = 0; 1104 *x = (ctx->xoff + px) - ctx->wox; 1105 *rx = ctx->wsx - *x; 1106 } 1107 if (*rx > nx) 1108 fatalx("%s: x too big, %u > %u", __func__, *rx, nx); 1109 1110 if (yoff >= ctx->woy && yoff + ny <= ctx->woy + ctx->wsy) { 1111 /* All visible. */ 1112 *j = 0; 1113 *y = ctx->yoff + py - ctx->woy; 1114 *ry = ny; 1115 } else if (yoff < ctx->woy && yoff + ny > ctx->woy + ctx->wsy) { 1116 /* Both top and bottom not visible. */ 1117 *j = ctx->woy; 1118 *y = 0; 1119 *ry = ctx->wsy; 1120 } else if (yoff < ctx->woy) { 1121 /* Top not visible. */ 1122 *j = ctx->woy - (ctx->yoff + py); 1123 *y = 0; 1124 *ry = ny - *j; 1125 } else { 1126 /* Bottom not visible. */ 1127 *j = 0; 1128 *y = (ctx->yoff + py) - ctx->woy; 1129 *ry = ctx->wsy - *y; 1130 } 1131 if (*ry > ny) 1132 fatalx("%s: y too big, %u > %u", __func__, *ry, ny); 1133 1134 return (1); 1135 } 1136 1137 /* Clear an area, adjusting to visible part of pane. */ 1138 static void 1139 tty_clear_area(struct tty *tty, const struct grid_cell *defaults, u_int py, 1140 u_int ny, u_int px, u_int nx, u_int bg) 1141 { 1142 struct client *c = tty->client; 1143 u_int yy; 1144 char tmp[64]; 1145 1146 log_debug("%s: %s, %u,%u at %u,%u", __func__, c->name, nx, ny, px, py); 1147 1148 /* Nothing to clear. */ 1149 if (nx == 0 || ny == 0) 1150 return; 1151 1152 /* If genuine BCE is available, can try escape sequences. */ 1153 if (!tty_fake_bce(tty, defaults, bg)) { 1154 /* Use ED if clearing off the bottom of the terminal. */ 1155 if (px == 0 && 1156 px + nx >= tty->sx && 1157 py + ny >= tty->sy && 1158 tty_term_has(tty->term, TTYC_ED)) { 1159 tty_cursor(tty, 0, py); 1160 tty_putcode(tty, TTYC_ED); 1161 return; 1162 } 1163 1164 /* 1165 * On VT420 compatible terminals we can use DECFRA if the 1166 * background colour isn't default (because it doesn't work 1167 * after SGR 0). 1168 */ 1169 if ((tty->term->flags & TERM_DECFRA) && !COLOUR_DEFAULT(bg)) { 1170 xsnprintf(tmp, sizeof tmp, "\033[32;%u;%u;%u;%u$x", 1171 py + 1, px + 1, py + ny, px + nx); 1172 tty_puts(tty, tmp); 1173 return; 1174 } 1175 1176 /* Full lines can be scrolled away to clear them. */ 1177 if (px == 0 && 1178 px + nx >= tty->sx && 1179 ny > 2 && 1180 tty_term_has(tty->term, TTYC_CSR) && 1181 tty_term_has(tty->term, TTYC_INDN)) { 1182 tty_region(tty, py, py + ny - 1); 1183 tty_margin_off(tty); 1184 tty_putcode1(tty, TTYC_INDN, ny); 1185 return; 1186 } 1187 1188 /* 1189 * If margins are supported, can just scroll the area off to 1190 * clear it. 1191 */ 1192 if (nx > 2 && 1193 ny > 2 && 1194 tty_term_has(tty->term, TTYC_CSR) && 1195 tty_use_margin(tty) && 1196 tty_term_has(tty->term, TTYC_INDN)) { 1197 tty_region(tty, py, py + ny - 1); 1198 tty_margin(tty, px, px + nx - 1); 1199 tty_putcode1(tty, TTYC_INDN, ny); 1200 return; 1201 } 1202 } 1203 1204 /* Couldn't use an escape sequence, loop over the lines. */ 1205 for (yy = py; yy < py + ny; yy++) 1206 tty_clear_line(tty, defaults, yy, px, nx, bg); 1207 } 1208 1209 /* Clear an area in a pane. */ 1210 static void 1211 tty_clear_pane_area(struct tty *tty, const struct tty_ctx *ctx, u_int py, 1212 u_int ny, u_int px, u_int nx, u_int bg) 1213 { 1214 u_int i, j, x, y, rx, ry; 1215 1216 if (tty_clamp_area(tty, ctx, px, py, nx, ny, &i, &j, &x, &y, &rx, &ry)) 1217 tty_clear_area(tty, &ctx->defaults, y, ry, x, rx, bg); 1218 } 1219 1220 static void 1221 tty_draw_pane(struct tty *tty, const struct tty_ctx *ctx, u_int py) 1222 { 1223 struct screen *s = ctx->s; 1224 u_int nx = ctx->sx, i, x, rx, ry; 1225 1226 log_debug("%s: %s %u %d", __func__, tty->client->name, py, ctx->bigger); 1227 1228 if (!ctx->bigger) { 1229 tty_draw_line(tty, s, 0, py, nx, ctx->xoff, ctx->yoff + py, 1230 &ctx->defaults, ctx->palette); 1231 return; 1232 } 1233 if (tty_clamp_line(tty, ctx, 0, py, nx, &i, &x, &rx, &ry)) { 1234 tty_draw_line(tty, s, i, py, rx, x, ry, &ctx->defaults, 1235 ctx->palette); 1236 } 1237 } 1238 1239 static const struct grid_cell * 1240 tty_check_codeset(struct tty *tty, const struct grid_cell *gc) 1241 { 1242 static struct grid_cell new; 1243 int c; 1244 1245 /* Characters less than 0x7f are always fine, no matter what. */ 1246 if (gc->data.size == 1 && *gc->data.data < 0x7f) 1247 return (gc); 1248 1249 /* UTF-8 terminal and a UTF-8 character - fine. */ 1250 if (tty->client->flags & CLIENT_UTF8) 1251 return (gc); 1252 memcpy(&new, gc, sizeof new); 1253 1254 /* See if this can be mapped to an ACS character. */ 1255 c = tty_acs_reverse_get(tty, (const char *)gc->data.data, gc->data.size); 1256 if (c != -1) { 1257 utf8_set(&new.data, c); 1258 new.attr |= GRID_ATTR_CHARSET; 1259 return (&new); 1260 } 1261 1262 /* Replace by the right number of underscores. */ 1263 new.data.size = gc->data.width; 1264 if (new.data.size > UTF8_SIZE) 1265 new.data.size = UTF8_SIZE; 1266 memset(new.data.data, '_', new.data.size); 1267 return (&new); 1268 } 1269 1270 static int 1271 tty_check_overlay(struct tty *tty, u_int px, u_int py) 1272 { 1273 struct client *c = tty->client; 1274 1275 if (c->overlay_check == NULL) 1276 return (1); 1277 return (c->overlay_check(c, px, py)); 1278 } 1279 1280 void 1281 tty_draw_line(struct tty *tty, struct screen *s, u_int px, u_int py, u_int nx, 1282 u_int atx, u_int aty, const struct grid_cell *defaults, int *palette) 1283 { 1284 struct grid *gd = s->grid; 1285 struct grid_cell gc, last; 1286 const struct grid_cell *gcp; 1287 struct grid_line *gl; 1288 u_int i, j, ux, sx, width; 1289 int flags, cleared = 0, wrapped = 0; 1290 char buf[512]; 1291 size_t len; 1292 u_int cellsize; 1293 1294 log_debug("%s: px=%u py=%u nx=%u atx=%u aty=%u", __func__, 1295 px, py, nx, atx, aty); 1296 1297 /* 1298 * py is the line in the screen to draw. 1299 * px is the start x and nx is the width to draw. 1300 * atx,aty is the line on the terminal to draw it. 1301 */ 1302 1303 flags = (tty->flags & TTY_NOCURSOR); 1304 tty->flags |= TTY_NOCURSOR; 1305 tty_update_mode(tty, tty->mode, s); 1306 1307 tty_region_off(tty); 1308 tty_margin_off(tty); 1309 1310 /* 1311 * Clamp the width to cellsize - note this is not cellused, because 1312 * there may be empty background cells after it (from BCE). 1313 */ 1314 sx = screen_size_x(s); 1315 if (nx > sx) 1316 nx = sx; 1317 cellsize = grid_get_line(gd, gd->hsize + py)->cellsize; 1318 if (sx > cellsize) 1319 sx = cellsize; 1320 if (sx > tty->sx) 1321 sx = tty->sx; 1322 if (sx > nx) 1323 sx = nx; 1324 ux = 0; 1325 1326 if (py == 0) 1327 gl = NULL; 1328 else 1329 gl = grid_get_line(gd, gd->hsize + py - 1); 1330 if (gl == NULL || 1331 (~gl->flags & GRID_LINE_WRAPPED) || 1332 atx != 0 || 1333 tty->cx < tty->sx || 1334 nx < tty->sx) { 1335 if (nx < tty->sx && 1336 atx == 0 && 1337 px + sx != nx && 1338 tty_term_has(tty->term, TTYC_EL1) && 1339 !tty_fake_bce(tty, defaults, 8)) { 1340 tty_default_attributes(tty, defaults, palette, 8); 1341 tty_cursor(tty, nx - 1, aty); 1342 tty_putcode(tty, TTYC_EL1); 1343 cleared = 1; 1344 } 1345 } else { 1346 log_debug("%s: wrapped line %u", __func__, aty); 1347 wrapped = 1; 1348 } 1349 1350 memcpy(&last, &grid_default_cell, sizeof last); 1351 len = 0; 1352 width = 0; 1353 1354 for (i = 0; i < sx; i++) { 1355 grid_view_get_cell(gd, px + i, py, &gc); 1356 gcp = tty_check_codeset(tty, &gc); 1357 if (len != 0 && 1358 (!tty_check_overlay(tty, atx + ux + width, aty) || 1359 (gcp->attr & GRID_ATTR_CHARSET) || 1360 gcp->flags != last.flags || 1361 gcp->attr != last.attr || 1362 gcp->fg != last.fg || 1363 gcp->bg != last.bg || 1364 gcp->us != last.us || 1365 ux + width + gcp->data.width > nx || 1366 (sizeof buf) - len < gcp->data.size)) { 1367 tty_attributes(tty, &last, defaults, palette); 1368 if (last.flags & GRID_FLAG_CLEARED) { 1369 log_debug("%s: %zu cleared", __func__, len); 1370 tty_clear_line(tty, defaults, aty, atx + ux, 1371 width, last.bg); 1372 } else { 1373 if (!wrapped || atx != 0 || ux != 0) 1374 tty_cursor(tty, atx + ux, aty); 1375 tty_putn(tty, buf, len, width); 1376 } 1377 ux += width; 1378 1379 len = 0; 1380 width = 0; 1381 wrapped = 0; 1382 } 1383 1384 if (gcp->flags & GRID_FLAG_SELECTED) 1385 screen_select_cell(s, &last, gcp); 1386 else 1387 memcpy(&last, gcp, sizeof last); 1388 if (!tty_check_overlay(tty, atx + ux, aty)) { 1389 if (~gcp->flags & GRID_FLAG_PADDING) 1390 ux += gcp->data.width; 1391 } else if (ux + gcp->data.width > nx) { 1392 tty_attributes(tty, &last, defaults, palette); 1393 tty_cursor(tty, atx + ux, aty); 1394 for (j = 0; j < gcp->data.width; j++) { 1395 if (ux + j > nx) 1396 break; 1397 tty_putc(tty, ' '); 1398 ux++; 1399 } 1400 } else if (gcp->attr & GRID_ATTR_CHARSET) { 1401 tty_attributes(tty, &last, defaults, palette); 1402 tty_cursor(tty, atx + ux, aty); 1403 for (j = 0; j < gcp->data.size; j++) 1404 tty_putc(tty, gcp->data.data[j]); 1405 ux += gcp->data.width; 1406 } else if (~gcp->flags & GRID_FLAG_PADDING) { 1407 memcpy(buf + len, gcp->data.data, gcp->data.size); 1408 len += gcp->data.size; 1409 width += gcp->data.width; 1410 } 1411 } 1412 if (len != 0 && ((~last.flags & GRID_FLAG_CLEARED) || last.bg != 8)) { 1413 tty_attributes(tty, &last, defaults, palette); 1414 if (last.flags & GRID_FLAG_CLEARED) { 1415 log_debug("%s: %zu cleared (end)", __func__, len); 1416 tty_clear_line(tty, defaults, aty, atx + ux, width, 1417 last.bg); 1418 } else { 1419 if (!wrapped || atx != 0 || ux != 0) 1420 tty_cursor(tty, atx + ux, aty); 1421 tty_putn(tty, buf, len, width); 1422 } 1423 ux += width; 1424 } 1425 1426 if (!cleared && ux < nx) { 1427 log_debug("%s: %u to end of line (%zu cleared)", __func__, 1428 nx - ux, len); 1429 tty_default_attributes(tty, defaults, palette, 8); 1430 tty_clear_line(tty, defaults, aty, atx + ux, nx - ux, 8); 1431 } 1432 1433 tty->flags = (tty->flags & ~TTY_NOCURSOR) | flags; 1434 tty_update_mode(tty, tty->mode, s); 1435 } 1436 1437 void 1438 tty_sync_start(struct tty *tty) 1439 { 1440 if (tty->flags & TTY_BLOCK) 1441 return; 1442 if (tty->flags & TTY_SYNCING) 1443 return; 1444 tty->flags |= TTY_SYNCING; 1445 1446 if (tty_term_has(tty->term, TTYC_SYNC)) { 1447 log_debug("%s sync start", tty->client->name); 1448 tty_putcode1(tty, TTYC_SYNC, 1); 1449 } 1450 } 1451 1452 void 1453 tty_sync_end(struct tty *tty) 1454 { 1455 if (tty->flags & TTY_BLOCK) 1456 return; 1457 if (~tty->flags & TTY_SYNCING) 1458 return; 1459 tty->flags &= ~TTY_SYNCING; 1460 1461 if (tty_term_has(tty->term, TTYC_SYNC)) { 1462 log_debug("%s sync end", tty->client->name); 1463 tty_putcode1(tty, TTYC_SYNC, 2); 1464 } 1465 } 1466 1467 static int 1468 tty_client_ready(struct client *c) 1469 { 1470 if (c->session == NULL || c->tty.term == NULL) 1471 return (0); 1472 if (c->flags & (CLIENT_REDRAWWINDOW|CLIENT_SUSPENDED)) 1473 return (0); 1474 if (c->tty.flags & TTY_FREEZE) 1475 return (0); 1476 return (1); 1477 } 1478 1479 void 1480 tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *), 1481 struct tty_ctx *ctx) 1482 { 1483 struct client *c; 1484 int state; 1485 1486 if (ctx->set_client_cb == NULL) 1487 return; 1488 TAILQ_FOREACH(c, &clients, entry) { 1489 if (!tty_client_ready(c)) 1490 continue; 1491 state = ctx->set_client_cb(ctx, c); 1492 if (state == -1) 1493 break; 1494 if (state == 0) 1495 continue; 1496 cmdfn(&c->tty, ctx); 1497 } 1498 } 1499 1500 void 1501 tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx) 1502 { 1503 if (ctx->bigger || 1504 !tty_full_width(tty, ctx) || 1505 tty_fake_bce(tty, &ctx->defaults, ctx->bg) || 1506 (!tty_term_has(tty->term, TTYC_ICH) && 1507 !tty_term_has(tty->term, TTYC_ICH1))) { 1508 tty_draw_pane(tty, ctx, ctx->ocy); 1509 return; 1510 } 1511 1512 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1513 1514 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1515 1516 tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num); 1517 } 1518 1519 void 1520 tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx) 1521 { 1522 if (ctx->bigger || 1523 !tty_full_width(tty, ctx) || 1524 tty_fake_bce(tty, &ctx->defaults, ctx->bg) || 1525 (!tty_term_has(tty->term, TTYC_DCH) && 1526 !tty_term_has(tty->term, TTYC_DCH1))) { 1527 tty_draw_pane(tty, ctx, ctx->ocy); 1528 return; 1529 } 1530 1531 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1532 1533 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1534 1535 tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num); 1536 } 1537 1538 void 1539 tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx) 1540 { 1541 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1542 1543 tty_clear_pane_line(tty, ctx, ctx->ocy, ctx->ocx, ctx->num, ctx->bg); 1544 } 1545 1546 void 1547 tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx) 1548 { 1549 if (ctx->bigger || 1550 !tty_full_width(tty, ctx) || 1551 tty_fake_bce(tty, &ctx->defaults, ctx->bg) || 1552 !tty_term_has(tty->term, TTYC_CSR) || 1553 !tty_term_has(tty->term, TTYC_IL1) || 1554 ctx->sx == 1 || 1555 ctx->sy == 1) { 1556 tty_redraw_region(tty, ctx); 1557 return; 1558 } 1559 1560 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1561 1562 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1563 tty_margin_off(tty); 1564 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1565 1566 tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num); 1567 tty->cx = tty->cy = UINT_MAX; 1568 } 1569 1570 void 1571 tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx) 1572 { 1573 if (ctx->bigger || 1574 !tty_full_width(tty, ctx) || 1575 tty_fake_bce(tty, &ctx->defaults, ctx->bg) || 1576 !tty_term_has(tty->term, TTYC_CSR) || 1577 !tty_term_has(tty->term, TTYC_DL1) || 1578 ctx->sx == 1 || 1579 ctx->sy == 1) { 1580 tty_redraw_region(tty, ctx); 1581 return; 1582 } 1583 1584 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1585 1586 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1587 tty_margin_off(tty); 1588 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1589 1590 tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num); 1591 tty->cx = tty->cy = UINT_MAX; 1592 } 1593 1594 void 1595 tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx) 1596 { 1597 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1598 1599 tty_clear_pane_line(tty, ctx, ctx->ocy, 0, ctx->sx, ctx->bg); 1600 } 1601 1602 void 1603 tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx) 1604 { 1605 u_int nx = ctx->sx - ctx->ocx; 1606 1607 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1608 1609 tty_clear_pane_line(tty, ctx, ctx->ocy, ctx->ocx, nx, ctx->bg); 1610 } 1611 1612 void 1613 tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx) 1614 { 1615 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1616 1617 tty_clear_pane_line(tty, ctx, ctx->ocy, 0, ctx->ocx + 1, ctx->bg); 1618 } 1619 1620 void 1621 tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx) 1622 { 1623 if (ctx->ocy != ctx->orupper) 1624 return; 1625 1626 if (ctx->bigger || 1627 (!tty_full_width(tty, ctx) && !tty_use_margin(tty)) || 1628 tty_fake_bce(tty, &ctx->defaults, 8) || 1629 !tty_term_has(tty->term, TTYC_CSR) || 1630 (!tty_term_has(tty->term, TTYC_RI) && 1631 !tty_term_has(tty->term, TTYC_RIN)) || 1632 ctx->sx == 1 || 1633 ctx->sy == 1) { 1634 tty_redraw_region(tty, ctx); 1635 return; 1636 } 1637 1638 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1639 1640 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1641 tty_margin_pane(tty, ctx); 1642 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper); 1643 1644 if (tty_term_has(tty->term, TTYC_RI)) 1645 tty_putcode(tty, TTYC_RI); 1646 else 1647 tty_putcode1(tty, TTYC_RIN, 1); 1648 } 1649 1650 void 1651 tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx) 1652 { 1653 if (ctx->ocy != ctx->orlower) 1654 return; 1655 1656 if (ctx->bigger || 1657 (!tty_full_width(tty, ctx) && !tty_use_margin(tty)) || 1658 tty_fake_bce(tty, &ctx->defaults, 8) || 1659 !tty_term_has(tty->term, TTYC_CSR) || 1660 ctx->sx == 1 || 1661 ctx->sy == 1) { 1662 tty_redraw_region(tty, ctx); 1663 return; 1664 } 1665 1666 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1667 1668 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1669 tty_margin_pane(tty, ctx); 1670 1671 /* 1672 * If we want to wrap a pane while using margins, the cursor needs to 1673 * be exactly on the right of the region. If the cursor is entirely off 1674 * the edge - move it back to the right. Some terminals are funny about 1675 * this and insert extra spaces, so only use the right if margins are 1676 * enabled. 1677 */ 1678 if (ctx->xoff + ctx->ocx > tty->rright) { 1679 if (!tty_use_margin(tty)) 1680 tty_cursor(tty, 0, ctx->yoff + ctx->ocy); 1681 else 1682 tty_cursor(tty, tty->rright, ctx->yoff + ctx->ocy); 1683 } else 1684 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1685 1686 tty_putc(tty, '\n'); 1687 } 1688 1689 void 1690 tty_cmd_scrollup(struct tty *tty, const struct tty_ctx *ctx) 1691 { 1692 u_int i; 1693 1694 if (ctx->bigger || 1695 (!tty_full_width(tty, ctx) && !tty_use_margin(tty)) || 1696 tty_fake_bce(tty, &ctx->defaults, 8) || 1697 !tty_term_has(tty->term, TTYC_CSR) || 1698 ctx->sx == 1 || 1699 ctx->sy == 1) { 1700 tty_redraw_region(tty, ctx); 1701 return; 1702 } 1703 1704 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1705 1706 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1707 tty_margin_pane(tty, ctx); 1708 1709 if (ctx->num == 1 || !tty_term_has(tty->term, TTYC_INDN)) { 1710 if (!tty_use_margin(tty)) 1711 tty_cursor(tty, 0, tty->rlower); 1712 else 1713 tty_cursor(tty, tty->rright, tty->rlower); 1714 for (i = 0; i < ctx->num; i++) 1715 tty_putc(tty, '\n'); 1716 } else { 1717 if (tty->cy == UINT_MAX) 1718 tty_cursor(tty, 0, 0); 1719 else 1720 tty_cursor(tty, 0, tty->cy); 1721 tty_putcode1(tty, TTYC_INDN, ctx->num); 1722 } 1723 } 1724 1725 void 1726 tty_cmd_scrolldown(struct tty *tty, const struct tty_ctx *ctx) 1727 { 1728 u_int i; 1729 1730 if (ctx->bigger || 1731 (!tty_full_width(tty, ctx) && !tty_use_margin(tty)) || 1732 tty_fake_bce(tty, &ctx->defaults, 8) || 1733 !tty_term_has(tty->term, TTYC_CSR) || 1734 (!tty_term_has(tty->term, TTYC_RI) && 1735 !tty_term_has(tty->term, TTYC_RIN)) || 1736 ctx->sx == 1 || 1737 ctx->sy == 1) { 1738 tty_redraw_region(tty, ctx); 1739 return; 1740 } 1741 1742 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1743 1744 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1745 tty_margin_pane(tty, ctx); 1746 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper); 1747 1748 if (tty_term_has(tty->term, TTYC_RIN)) 1749 tty_putcode1(tty, TTYC_RIN, ctx->num); 1750 else { 1751 for (i = 0; i < ctx->num; i++) 1752 tty_putcode(tty, TTYC_RI); 1753 } 1754 } 1755 1756 void 1757 tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx) 1758 { 1759 u_int px, py, nx, ny; 1760 1761 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1762 1763 tty_region_pane(tty, ctx, 0, ctx->sy - 1); 1764 tty_margin_off(tty); 1765 1766 px = 0; 1767 nx = ctx->sx; 1768 py = ctx->ocy + 1; 1769 ny = ctx->sy - ctx->ocy - 1; 1770 1771 tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg); 1772 1773 px = ctx->ocx; 1774 nx = ctx->sx - ctx->ocx; 1775 py = ctx->ocy; 1776 1777 tty_clear_pane_line(tty, ctx, py, px, nx, ctx->bg); 1778 } 1779 1780 void 1781 tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx) 1782 { 1783 u_int px, py, nx, ny; 1784 1785 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1786 1787 tty_region_pane(tty, ctx, 0, ctx->sy - 1); 1788 tty_margin_off(tty); 1789 1790 px = 0; 1791 nx = ctx->sx; 1792 py = 0; 1793 ny = ctx->ocy; 1794 1795 tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg); 1796 1797 px = 0; 1798 nx = ctx->ocx + 1; 1799 py = ctx->ocy; 1800 1801 tty_clear_pane_line(tty, ctx, py, px, nx, ctx->bg); 1802 } 1803 1804 void 1805 tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx) 1806 { 1807 u_int px, py, nx, ny; 1808 1809 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1810 1811 tty_region_pane(tty, ctx, 0, ctx->sy - 1); 1812 tty_margin_off(tty); 1813 1814 px = 0; 1815 nx = ctx->sx; 1816 py = 0; 1817 ny = ctx->sy; 1818 1819 tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg); 1820 } 1821 1822 void 1823 tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx) 1824 { 1825 u_int i, j; 1826 1827 if (ctx->bigger) { 1828 ctx->redraw_cb(ctx); 1829 return; 1830 } 1831 1832 tty_attributes(tty, &grid_default_cell, &ctx->defaults, ctx->palette); 1833 1834 tty_region_pane(tty, ctx, 0, ctx->sy - 1); 1835 tty_margin_off(tty); 1836 1837 for (j = 0; j < ctx->sy; j++) { 1838 tty_cursor_pane(tty, ctx, 0, j); 1839 for (i = 0; i < ctx->sx; i++) 1840 tty_putc(tty, 'E'); 1841 } 1842 } 1843 1844 void 1845 tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx) 1846 { 1847 if (!tty_is_visible(tty, ctx, ctx->ocx, ctx->ocy, 1, 1)) 1848 return; 1849 1850 if (ctx->xoff + ctx->ocx - ctx->wox > tty->sx - 1 && 1851 ctx->ocy == ctx->orlower && 1852 tty_full_width(tty, ctx)) 1853 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1854 1855 tty_margin_off(tty); 1856 tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy); 1857 1858 tty_cell(tty, ctx->cell, &ctx->defaults, ctx->palette); 1859 } 1860 1861 void 1862 tty_cmd_cells(struct tty *tty, const struct tty_ctx *ctx) 1863 { 1864 if (!tty_is_visible(tty, ctx, ctx->ocx, ctx->ocy, ctx->num, 1)) 1865 return; 1866 1867 if (ctx->bigger && 1868 (ctx->xoff + ctx->ocx < ctx->wox || 1869 ctx->xoff + ctx->ocx + ctx->num > ctx->wox + ctx->wsx)) { 1870 if (!ctx->wrapped || 1871 !tty_full_width(tty, ctx) || 1872 (tty->term->flags & TERM_NOAM) || 1873 ctx->xoff + ctx->ocx != 0 || 1874 ctx->yoff + ctx->ocy != tty->cy + 1 || 1875 tty->cx < tty->sx || 1876 tty->cy == tty->rlower) 1877 tty_draw_pane(tty, ctx, ctx->ocy); 1878 else 1879 ctx->redraw_cb(ctx); 1880 return; 1881 } 1882 1883 tty_margin_off(tty); 1884 tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy); 1885 1886 tty_attributes(tty, ctx->cell, &ctx->defaults, ctx->palette); 1887 tty_putn(tty, ctx->ptr, ctx->num, ctx->num); 1888 } 1889 1890 void 1891 tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx) 1892 { 1893 tty_set_selection(tty, ctx->ptr, ctx->num); 1894 } 1895 1896 void 1897 tty_set_selection(struct tty *tty, const char *buf, size_t len) 1898 { 1899 char *encoded; 1900 size_t size; 1901 1902 if (~tty->flags & TTY_STARTED) 1903 return; 1904 if (!tty_term_has(tty->term, TTYC_MS)) 1905 return; 1906 1907 size = 4 * ((len + 2) / 3) + 1; /* storage for base64 */ 1908 encoded = xmalloc(size); 1909 1910 b64_ntop((const u_char *)buf, len, encoded, size); 1911 tty_putcode_ptr2(tty, TTYC_MS, "", encoded); 1912 1913 free(encoded); 1914 } 1915 1916 void 1917 tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx) 1918 { 1919 tty_add(tty, ctx->ptr, ctx->num); 1920 tty_invalidate(tty); 1921 } 1922 1923 void 1924 tty_cmd_syncstart(struct tty *tty, __unused const struct tty_ctx *ctx) 1925 { 1926 tty_sync_start(tty); 1927 } 1928 1929 void 1930 tty_cell(struct tty *tty, const struct grid_cell *gc, 1931 const struct grid_cell *defaults, int *palette) 1932 { 1933 const struct grid_cell *gcp; 1934 1935 /* Skip last character if terminal is stupid. */ 1936 if ((tty->term->flags & TERM_NOAM) && 1937 tty->cy == tty->sy - 1 && 1938 tty->cx == tty->sx - 1) 1939 return; 1940 1941 /* If this is a padding character, do nothing. */ 1942 if (gc->flags & GRID_FLAG_PADDING) 1943 return; 1944 1945 /* Check the output codeset and apply attributes. */ 1946 gcp = tty_check_codeset(tty, gc); 1947 tty_attributes(tty, gcp, defaults, palette); 1948 1949 /* If it is a single character, write with putc to handle ACS. */ 1950 if (gcp->data.size == 1) { 1951 tty_attributes(tty, gcp, defaults, palette); 1952 if (*gcp->data.data < 0x20 || *gcp->data.data == 0x7f) 1953 return; 1954 tty_putc(tty, *gcp->data.data); 1955 return; 1956 } 1957 1958 /* Write the data. */ 1959 tty_putn(tty, gcp->data.data, gcp->data.size, gcp->data.width); 1960 } 1961 1962 void 1963 tty_reset(struct tty *tty) 1964 { 1965 struct grid_cell *gc = &tty->cell; 1966 1967 if (!grid_cells_equal(gc, &grid_default_cell)) { 1968 if ((gc->attr & GRID_ATTR_CHARSET) && tty_acs_needed(tty)) 1969 tty_putcode(tty, TTYC_RMACS); 1970 tty_putcode(tty, TTYC_SGR0); 1971 memcpy(gc, &grid_default_cell, sizeof *gc); 1972 } 1973 memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell); 1974 } 1975 1976 static void 1977 tty_invalidate(struct tty *tty) 1978 { 1979 memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell); 1980 memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell); 1981 1982 tty->cx = tty->cy = UINT_MAX; 1983 tty->rupper = tty->rleft = UINT_MAX; 1984 tty->rlower = tty->rright = UINT_MAX; 1985 1986 if (tty->flags & TTY_STARTED) { 1987 if (tty_use_margin(tty)) 1988 tty_putcode(tty, TTYC_ENMG); 1989 tty_putcode(tty, TTYC_SGR0); 1990 1991 tty->mode = ALL_MODES; 1992 tty_update_mode(tty, MODE_CURSOR, NULL); 1993 1994 tty_cursor(tty, 0, 0); 1995 tty_region_off(tty); 1996 tty_margin_off(tty); 1997 } else 1998 tty->mode = MODE_CURSOR; 1999 } 2000 2001 /* Turn off margin. */ 2002 void 2003 tty_region_off(struct tty *tty) 2004 { 2005 tty_region(tty, 0, tty->sy - 1); 2006 } 2007 2008 /* Set region inside pane. */ 2009 static void 2010 tty_region_pane(struct tty *tty, const struct tty_ctx *ctx, u_int rupper, 2011 u_int rlower) 2012 { 2013 tty_region(tty, ctx->yoff + rupper - ctx->woy, 2014 ctx->yoff + rlower - ctx->woy); 2015 } 2016 2017 /* Set region at absolute position. */ 2018 static void 2019 tty_region(struct tty *tty, u_int rupper, u_int rlower) 2020 { 2021 if (tty->rlower == rlower && tty->rupper == rupper) 2022 return; 2023 if (!tty_term_has(tty->term, TTYC_CSR)) 2024 return; 2025 2026 tty->rupper = rupper; 2027 tty->rlower = rlower; 2028 2029 /* 2030 * Some terminals (such as PuTTY) do not correctly reset the cursor to 2031 * 0,0 if it is beyond the last column (they do not reset their wrap 2032 * flag so further output causes a line feed). As a workaround, do an 2033 * explicit move to 0 first. 2034 */ 2035 if (tty->cx >= tty->sx) { 2036 if (tty->cy == UINT_MAX) 2037 tty_cursor(tty, 0, 0); 2038 else 2039 tty_cursor(tty, 0, tty->cy); 2040 } 2041 2042 tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower); 2043 tty->cx = tty->cy = UINT_MAX; 2044 } 2045 2046 /* Turn off margin. */ 2047 void 2048 tty_margin_off(struct tty *tty) 2049 { 2050 tty_margin(tty, 0, tty->sx - 1); 2051 } 2052 2053 /* Set margin inside pane. */ 2054 static void 2055 tty_margin_pane(struct tty *tty, const struct tty_ctx *ctx) 2056 { 2057 tty_margin(tty, ctx->xoff - ctx->wox, 2058 ctx->xoff + ctx->sx - 1 - ctx->wox); 2059 } 2060 2061 /* Set margin at absolute position. */ 2062 static void 2063 tty_margin(struct tty *tty, u_int rleft, u_int rright) 2064 { 2065 if (!tty_use_margin(tty)) 2066 return; 2067 if (tty->rleft == rleft && tty->rright == rright) 2068 return; 2069 2070 tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower); 2071 2072 tty->rleft = rleft; 2073 tty->rright = rright; 2074 2075 if (rleft == 0 && rright == tty->sx - 1) 2076 tty_putcode(tty, TTYC_CLMG); 2077 else 2078 tty_putcode2(tty, TTYC_CMG, rleft, rright); 2079 tty->cx = tty->cy = UINT_MAX; 2080 } 2081 2082 /* 2083 * Move the cursor, unless it would wrap itself when the next character is 2084 * printed. 2085 */ 2086 static void 2087 tty_cursor_pane_unless_wrap(struct tty *tty, const struct tty_ctx *ctx, 2088 u_int cx, u_int cy) 2089 { 2090 if (!ctx->wrapped || 2091 !tty_full_width(tty, ctx) || 2092 (tty->term->flags & TERM_NOAM) || 2093 ctx->xoff + cx != 0 || 2094 ctx->yoff + cy != tty->cy + 1 || 2095 tty->cx < tty->sx || 2096 tty->cy == tty->rlower) 2097 tty_cursor_pane(tty, ctx, cx, cy); 2098 else 2099 log_debug("%s: will wrap at %u,%u", __func__, tty->cx, tty->cy); 2100 } 2101 2102 /* Move cursor inside pane. */ 2103 static void 2104 tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy) 2105 { 2106 tty_cursor(tty, ctx->xoff + cx - ctx->wox, ctx->yoff + cy - ctx->woy); 2107 } 2108 2109 /* Move cursor to absolute position. */ 2110 void 2111 tty_cursor(struct tty *tty, u_int cx, u_int cy) 2112 { 2113 struct tty_term *term = tty->term; 2114 u_int thisx, thisy; 2115 int change; 2116 2117 if (tty->flags & TTY_BLOCK) 2118 return; 2119 2120 if (cx > tty->sx - 1) 2121 cx = tty->sx - 1; 2122 2123 thisx = tty->cx; 2124 thisy = tty->cy; 2125 2126 /* No change. */ 2127 if (cx == thisx && cy == thisy) 2128 return; 2129 2130 /* Very end of the line, just use absolute movement. */ 2131 if (thisx > tty->sx - 1) 2132 goto absolute; 2133 2134 /* Move to home position (0, 0). */ 2135 if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) { 2136 tty_putcode(tty, TTYC_HOME); 2137 goto out; 2138 } 2139 2140 /* Zero on the next line. */ 2141 if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower && 2142 (!tty_use_margin(tty) || tty->rleft == 0)) { 2143 tty_putc(tty, '\r'); 2144 tty_putc(tty, '\n'); 2145 goto out; 2146 } 2147 2148 /* Moving column or row. */ 2149 if (cy == thisy) { 2150 /* 2151 * Moving column only, row staying the same. 2152 */ 2153 2154 /* To left edge. */ 2155 if (cx == 0 && (!tty_use_margin(tty) || tty->rleft == 0)) { 2156 tty_putc(tty, '\r'); 2157 goto out; 2158 } 2159 2160 /* One to the left. */ 2161 if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) { 2162 tty_putcode(tty, TTYC_CUB1); 2163 goto out; 2164 } 2165 2166 /* One to the right. */ 2167 if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) { 2168 tty_putcode(tty, TTYC_CUF1); 2169 goto out; 2170 } 2171 2172 /* Calculate difference. */ 2173 change = thisx - cx; /* +ve left, -ve right */ 2174 2175 /* 2176 * Use HPA if change is larger than absolute, otherwise move 2177 * the cursor with CUB/CUF. 2178 */ 2179 if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) { 2180 tty_putcode1(tty, TTYC_HPA, cx); 2181 goto out; 2182 } else if (change > 0 && 2183 tty_term_has(term, TTYC_CUB) && 2184 !tty_use_margin(tty)) { 2185 if (change == 2 && tty_term_has(term, TTYC_CUB1)) { 2186 tty_putcode(tty, TTYC_CUB1); 2187 tty_putcode(tty, TTYC_CUB1); 2188 goto out; 2189 } 2190 tty_putcode1(tty, TTYC_CUB, change); 2191 goto out; 2192 } else if (change < 0 && 2193 tty_term_has(term, TTYC_CUF) && 2194 !tty_use_margin(tty)) { 2195 tty_putcode1(tty, TTYC_CUF, -change); 2196 goto out; 2197 } 2198 } else if (cx == thisx) { 2199 /* 2200 * Moving row only, column staying the same. 2201 */ 2202 2203 /* One above. */ 2204 if (thisy != tty->rupper && 2205 cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) { 2206 tty_putcode(tty, TTYC_CUU1); 2207 goto out; 2208 } 2209 2210 /* One below. */ 2211 if (thisy != tty->rlower && 2212 cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) { 2213 tty_putcode(tty, TTYC_CUD1); 2214 goto out; 2215 } 2216 2217 /* Calculate difference. */ 2218 change = thisy - cy; /* +ve up, -ve down */ 2219 2220 /* 2221 * Try to use VPA if change is larger than absolute or if this 2222 * change would cross the scroll region, otherwise use CUU/CUD. 2223 */ 2224 if ((u_int) abs(change) > cy || 2225 (change < 0 && cy - change > tty->rlower) || 2226 (change > 0 && cy - change < tty->rupper)) { 2227 if (tty_term_has(term, TTYC_VPA)) { 2228 tty_putcode1(tty, TTYC_VPA, cy); 2229 goto out; 2230 } 2231 } else if (change > 0 && tty_term_has(term, TTYC_CUU)) { 2232 tty_putcode1(tty, TTYC_CUU, change); 2233 goto out; 2234 } else if (change < 0 && tty_term_has(term, TTYC_CUD)) { 2235 tty_putcode1(tty, TTYC_CUD, -change); 2236 goto out; 2237 } 2238 } 2239 2240 absolute: 2241 /* Absolute movement. */ 2242 tty_putcode2(tty, TTYC_CUP, cy, cx); 2243 2244 out: 2245 tty->cx = cx; 2246 tty->cy = cy; 2247 } 2248 2249 void 2250 tty_attributes(struct tty *tty, const struct grid_cell *gc, 2251 const struct grid_cell *defaults, int *palette) 2252 { 2253 struct grid_cell *tc = &tty->cell, gc2; 2254 int changed; 2255 2256 /* Copy cell and update default colours. */ 2257 memcpy(&gc2, gc, sizeof gc2); 2258 if (gc2.fg == 8) 2259 gc2.fg = defaults->fg; 2260 if (gc2.bg == 8) 2261 gc2.bg = defaults->bg; 2262 2263 /* Ignore cell if it is the same as the last one. */ 2264 if (gc2.attr == tty->last_cell.attr && 2265 gc2.fg == tty->last_cell.fg && 2266 gc2.bg == tty->last_cell.bg && 2267 gc2.us == tty->last_cell.us) 2268 return; 2269 2270 /* 2271 * If no setab, try to use the reverse attribute as a best-effort for a 2272 * non-default background. This is a bit of a hack but it doesn't do 2273 * any serious harm and makes a couple of applications happier. 2274 */ 2275 if (!tty_term_has(tty->term, TTYC_SETAB)) { 2276 if (gc2.attr & GRID_ATTR_REVERSE) { 2277 if (gc2.fg != 7 && !COLOUR_DEFAULT(gc2.fg)) 2278 gc2.attr &= ~GRID_ATTR_REVERSE; 2279 } else { 2280 if (gc2.bg != 0 && !COLOUR_DEFAULT(gc2.bg)) 2281 gc2.attr |= GRID_ATTR_REVERSE; 2282 } 2283 } 2284 2285 /* Fix up the colours if necessary. */ 2286 tty_check_fg(tty, palette, &gc2); 2287 tty_check_bg(tty, palette, &gc2); 2288 tty_check_us(tty, palette, &gc2); 2289 2290 /* 2291 * If any bits are being cleared or the underline colour is now default, 2292 * reset everything. 2293 */ 2294 if ((tc->attr & ~gc2.attr) || (tc->us != gc2.us && gc2.us == 0)) 2295 tty_reset(tty); 2296 2297 /* 2298 * Set the colours. This may call tty_reset() (so it comes next) and 2299 * may add to (NOT remove) the desired attributes. 2300 */ 2301 tty_colours(tty, &gc2); 2302 2303 /* Filter out attribute bits already set. */ 2304 changed = gc2.attr & ~tc->attr; 2305 tc->attr = gc2.attr; 2306 2307 /* Set the attributes. */ 2308 if (changed & GRID_ATTR_BRIGHT) 2309 tty_putcode(tty, TTYC_BOLD); 2310 if (changed & GRID_ATTR_DIM) 2311 tty_putcode(tty, TTYC_DIM); 2312 if (changed & GRID_ATTR_ITALICS) 2313 tty_set_italics(tty); 2314 if (changed & GRID_ATTR_ALL_UNDERSCORE) { 2315 if ((changed & GRID_ATTR_UNDERSCORE) || 2316 !tty_term_has(tty->term, TTYC_SMULX)) 2317 tty_putcode(tty, TTYC_SMUL); 2318 else if (changed & GRID_ATTR_UNDERSCORE_2) 2319 tty_putcode1(tty, TTYC_SMULX, 2); 2320 else if (changed & GRID_ATTR_UNDERSCORE_3) 2321 tty_putcode1(tty, TTYC_SMULX, 3); 2322 else if (changed & GRID_ATTR_UNDERSCORE_4) 2323 tty_putcode1(tty, TTYC_SMULX, 4); 2324 else if (changed & GRID_ATTR_UNDERSCORE_5) 2325 tty_putcode1(tty, TTYC_SMULX, 5); 2326 } 2327 if (changed & GRID_ATTR_BLINK) 2328 tty_putcode(tty, TTYC_BLINK); 2329 if (changed & GRID_ATTR_REVERSE) { 2330 if (tty_term_has(tty->term, TTYC_REV)) 2331 tty_putcode(tty, TTYC_REV); 2332 else if (tty_term_has(tty->term, TTYC_SMSO)) 2333 tty_putcode(tty, TTYC_SMSO); 2334 } 2335 if (changed & GRID_ATTR_HIDDEN) 2336 tty_putcode(tty, TTYC_INVIS); 2337 if (changed & GRID_ATTR_STRIKETHROUGH) 2338 tty_putcode(tty, TTYC_SMXX); 2339 if (changed & GRID_ATTR_OVERLINE) 2340 tty_putcode(tty, TTYC_SMOL); 2341 if ((changed & GRID_ATTR_CHARSET) && tty_acs_needed(tty)) 2342 tty_putcode(tty, TTYC_SMACS); 2343 2344 memcpy(&tty->last_cell, &gc2, sizeof tty->last_cell); 2345 } 2346 2347 static void 2348 tty_colours(struct tty *tty, const struct grid_cell *gc) 2349 { 2350 struct grid_cell *tc = &tty->cell; 2351 int have_ax; 2352 2353 /* No changes? Nothing is necessary. */ 2354 if (gc->fg == tc->fg && gc->bg == tc->bg && gc->us == tc->us) 2355 return; 2356 2357 /* 2358 * Is either the default colour? This is handled specially because the 2359 * best solution might be to reset both colours to default, in which 2360 * case if only one is default need to fall onward to set the other 2361 * colour. 2362 */ 2363 if (COLOUR_DEFAULT(gc->fg) || COLOUR_DEFAULT(gc->bg)) { 2364 /* 2365 * If don't have AX but do have op, send sgr0 (op can't 2366 * actually be used because it is sometimes the same as sgr0 2367 * and sometimes isn't). This resets both colours to default. 2368 * 2369 * Otherwise, try to set the default colour only as needed. 2370 */ 2371 have_ax = tty_term_flag(tty->term, TTYC_AX); 2372 if (!have_ax && tty_term_has(tty->term, TTYC_OP)) 2373 tty_reset(tty); 2374 else { 2375 if (COLOUR_DEFAULT(gc->fg) && !COLOUR_DEFAULT(tc->fg)) { 2376 if (have_ax) 2377 tty_puts(tty, "\033[39m"); 2378 else if (tc->fg != 7) 2379 tty_putcode1(tty, TTYC_SETAF, 7); 2380 tc->fg = gc->fg; 2381 } 2382 if (COLOUR_DEFAULT(gc->bg) && !COLOUR_DEFAULT(tc->bg)) { 2383 if (have_ax) 2384 tty_puts(tty, "\033[49m"); 2385 else if (tc->bg != 0) 2386 tty_putcode1(tty, TTYC_SETAB, 0); 2387 tc->bg = gc->bg; 2388 } 2389 } 2390 } 2391 2392 /* Set the foreground colour. */ 2393 if (!COLOUR_DEFAULT(gc->fg) && gc->fg != tc->fg) 2394 tty_colours_fg(tty, gc); 2395 2396 /* 2397 * Set the background colour. This must come after the foreground as 2398 * tty_colour_fg() can call tty_reset(). 2399 */ 2400 if (!COLOUR_DEFAULT(gc->bg) && gc->bg != tc->bg) 2401 tty_colours_bg(tty, gc); 2402 2403 /* Set the underscore color. */ 2404 if (gc->us != tc->us) 2405 tty_colours_us(tty, gc); 2406 } 2407 2408 static void 2409 tty_check_fg(struct tty *tty, int *palette, struct grid_cell *gc) 2410 { 2411 u_char r, g, b; 2412 u_int colours; 2413 int c; 2414 2415 /* 2416 * Perform substitution if this pane has a palette. If the bright 2417 * attribute is set, use the bright entry in the palette by changing to 2418 * the aixterm colour. 2419 */ 2420 if (~gc->flags & GRID_FLAG_NOPALETTE) { 2421 c = gc->fg; 2422 if (c < 8 && gc->attr & GRID_ATTR_BRIGHT) 2423 c += 90; 2424 if ((c = tty_get_palette(palette, c)) != -1) 2425 gc->fg = c; 2426 } 2427 2428 /* Is this a 24-bit colour? */ 2429 if (gc->fg & COLOUR_FLAG_RGB) { 2430 /* Not a 24-bit terminal? Translate to 256-colour palette. */ 2431 if (tty->term->flags & TERM_RGBCOLOURS) 2432 return; 2433 colour_split_rgb(gc->fg, &r, &g, &b); 2434 gc->fg = colour_find_rgb(r, g, b); 2435 } 2436 2437 /* How many colours does this terminal have? */ 2438 if (tty->term->flags & TERM_256COLOURS) 2439 colours = 256; 2440 else 2441 colours = tty_term_number(tty->term, TTYC_COLORS); 2442 2443 /* Is this a 256-colour colour? */ 2444 if (gc->fg & COLOUR_FLAG_256) { 2445 /* And not a 256 colour mode? */ 2446 if (colours < 256) { 2447 gc->fg = colour_256to16(gc->fg); 2448 if (gc->fg & 8) { 2449 gc->fg &= 7; 2450 if (colours >= 16) 2451 gc->fg += 90; 2452 } 2453 } 2454 return; 2455 } 2456 2457 /* Is this an aixterm colour? */ 2458 if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) { 2459 gc->fg -= 90; 2460 gc->attr |= GRID_ATTR_BRIGHT; 2461 } 2462 } 2463 2464 static void 2465 tty_check_bg(struct tty *tty, int *palette, struct grid_cell *gc) 2466 { 2467 u_char r, g, b; 2468 u_int colours; 2469 int c; 2470 2471 /* Perform substitution if this pane has a palette. */ 2472 if (~gc->flags & GRID_FLAG_NOPALETTE) { 2473 if ((c = tty_get_palette(palette, gc->bg)) != -1) 2474 gc->bg = c; 2475 } 2476 2477 /* Is this a 24-bit colour? */ 2478 if (gc->bg & COLOUR_FLAG_RGB) { 2479 /* Not a 24-bit terminal? Translate to 256-colour palette. */ 2480 if (tty->term->flags & TERM_RGBCOLOURS) 2481 return; 2482 colour_split_rgb(gc->bg, &r, &g, &b); 2483 gc->bg = colour_find_rgb(r, g, b); 2484 } 2485 2486 /* How many colours does this terminal have? */ 2487 if (tty->term->flags & TERM_256COLOURS) 2488 colours = 256; 2489 else 2490 colours = tty_term_number(tty->term, TTYC_COLORS); 2491 2492 /* Is this a 256-colour colour? */ 2493 if (gc->bg & COLOUR_FLAG_256) { 2494 /* 2495 * And not a 256 colour mode? Translate to 16-colour 2496 * palette. Bold background doesn't exist portably, so just 2497 * discard the bold bit if set. 2498 */ 2499 if (colours < 256) { 2500 gc->bg = colour_256to16(gc->bg); 2501 if (gc->bg & 8) { 2502 gc->bg &= 7; 2503 if (colours >= 16) 2504 gc->bg += 90; 2505 } 2506 } 2507 return; 2508 } 2509 2510 /* Is this an aixterm colour? */ 2511 if (gc->bg >= 90 && gc->bg <= 97 && colours < 16) 2512 gc->bg -= 90; 2513 } 2514 2515 static void 2516 tty_check_us(__unused struct tty *tty, int *palette, struct grid_cell *gc) 2517 { 2518 int c; 2519 2520 /* Perform substitution if this pane has a palette. */ 2521 if (~gc->flags & GRID_FLAG_NOPALETTE) { 2522 if ((c = tty_get_palette(palette, gc->us)) != -1) 2523 gc->us = c; 2524 } 2525 2526 /* Underscore colour is set as RGB so convert a 256 colour to RGB. */ 2527 if (gc->us & COLOUR_FLAG_256) 2528 gc->us = colour_256toRGB (gc->us); 2529 } 2530 2531 static void 2532 tty_colours_fg(struct tty *tty, const struct grid_cell *gc) 2533 { 2534 struct grid_cell *tc = &tty->cell; 2535 char s[32]; 2536 2537 /* Is this a 24-bit or 256-colour colour? */ 2538 if (gc->fg & COLOUR_FLAG_RGB || gc->fg & COLOUR_FLAG_256) { 2539 if (tty_try_colour(tty, gc->fg, "38") == 0) 2540 goto save; 2541 /* Should not get here, already converted in tty_check_fg. */ 2542 return; 2543 } 2544 2545 /* Is this an aixterm bright colour? */ 2546 if (gc->fg >= 90 && gc->fg <= 97) { 2547 if (tty->term->flags & TERM_256COLOURS) { 2548 xsnprintf(s, sizeof s, "\033[%dm", gc->fg); 2549 tty_puts(tty, s); 2550 } else 2551 tty_putcode1(tty, TTYC_SETAF, gc->fg - 90 + 8); 2552 goto save; 2553 } 2554 2555 /* Otherwise set the foreground colour. */ 2556 tty_putcode1(tty, TTYC_SETAF, gc->fg); 2557 2558 save: 2559 /* Save the new values in the terminal current cell. */ 2560 tc->fg = gc->fg; 2561 } 2562 2563 static void 2564 tty_colours_bg(struct tty *tty, const struct grid_cell *gc) 2565 { 2566 struct grid_cell *tc = &tty->cell; 2567 char s[32]; 2568 2569 /* Is this a 24-bit or 256-colour colour? */ 2570 if (gc->bg & COLOUR_FLAG_RGB || gc->bg & COLOUR_FLAG_256) { 2571 if (tty_try_colour(tty, gc->bg, "48") == 0) 2572 goto save; 2573 /* Should not get here, already converted in tty_check_bg. */ 2574 return; 2575 } 2576 2577 /* Is this an aixterm bright colour? */ 2578 if (gc->bg >= 90 && gc->bg <= 97) { 2579 if (tty->term->flags & TERM_256COLOURS) { 2580 xsnprintf(s, sizeof s, "\033[%dm", gc->bg + 10); 2581 tty_puts(tty, s); 2582 } else 2583 tty_putcode1(tty, TTYC_SETAB, gc->bg - 90 + 8); 2584 goto save; 2585 } 2586 2587 /* Otherwise set the background colour. */ 2588 tty_putcode1(tty, TTYC_SETAB, gc->bg); 2589 2590 save: 2591 /* Save the new values in the terminal current cell. */ 2592 tc->bg = gc->bg; 2593 } 2594 2595 static void 2596 tty_colours_us(struct tty *tty, const struct grid_cell *gc) 2597 { 2598 struct grid_cell *tc = &tty->cell; 2599 u_int c; 2600 u_char r, g, b; 2601 2602 /* Clear underline colour. */ 2603 if (gc->us == 0) { 2604 tty_putcode(tty, TTYC_OL); 2605 goto save; 2606 } 2607 2608 /* Must be an RGB colour - this should never happen. */ 2609 if (~gc->us & COLOUR_FLAG_RGB) 2610 return; 2611 2612 /* 2613 * Setulc and setal follows the ncurses(3) one argument "direct colour" 2614 * capability format. Calculate the colour value. 2615 */ 2616 colour_split_rgb(gc->us, &r, &g, &b); 2617 c = (65536 * r) + (256 * g) + b; 2618 2619 /* 2620 * Write the colour. Only use setal if the RGB flag is set because the 2621 * non-RGB version may be wrong. 2622 */ 2623 if (tty_term_has(tty->term, TTYC_SETULC)) 2624 tty_putcode1(tty, TTYC_SETULC, c); 2625 else if (tty_term_has(tty->term, TTYC_SETAL) && 2626 tty_term_has(tty->term, TTYC_RGB)) 2627 tty_putcode1(tty, TTYC_SETAL, c); 2628 2629 save: 2630 /* Save the new values in the terminal current cell. */ 2631 tc->us = gc->us; 2632 } 2633 2634 static int 2635 tty_try_colour(struct tty *tty, int colour, const char *type) 2636 { 2637 u_char r, g, b; 2638 2639 if (colour & COLOUR_FLAG_256) { 2640 if (*type == '3' && tty_term_has(tty->term, TTYC_SETAF)) 2641 tty_putcode1(tty, TTYC_SETAF, colour & 0xff); 2642 else if (tty_term_has(tty->term, TTYC_SETAB)) 2643 tty_putcode1(tty, TTYC_SETAB, colour & 0xff); 2644 return (0); 2645 } 2646 2647 if (colour & COLOUR_FLAG_RGB) { 2648 colour_split_rgb(colour & 0xffffff, &r, &g, &b); 2649 if (*type == '3' && tty_term_has(tty->term, TTYC_SETRGBF)) 2650 tty_putcode3(tty, TTYC_SETRGBF, r, g, b); 2651 else if (tty_term_has(tty->term, TTYC_SETRGBB)) 2652 tty_putcode3(tty, TTYC_SETRGBB, r, g, b); 2653 return (0); 2654 } 2655 2656 return (-1); 2657 } 2658 2659 static void 2660 tty_window_default_style(struct grid_cell *gc, struct window_pane *wp) 2661 { 2662 memcpy(gc, &grid_default_cell, sizeof *gc); 2663 gc->fg = wp->fg; 2664 gc->bg = wp->bg; 2665 } 2666 2667 void 2668 tty_default_colours(struct grid_cell *gc, struct window_pane *wp) 2669 { 2670 struct options *oo = wp->options; 2671 2672 memcpy(gc, &grid_default_cell, sizeof *gc); 2673 2674 if (wp->flags & PANE_STYLECHANGED) { 2675 wp->flags &= ~PANE_STYLECHANGED; 2676 2677 tty_window_default_style(&wp->cached_active_gc, wp); 2678 style_add(&wp->cached_active_gc, oo, "window-active-style", 2679 NULL); 2680 tty_window_default_style(&wp->cached_gc, wp); 2681 style_add(&wp->cached_gc, oo, "window-style", NULL); 2682 } 2683 2684 if (gc->fg == 8) { 2685 if (wp == wp->window->active && wp->cached_active_gc.fg != 8) 2686 gc->fg = wp->cached_active_gc.fg; 2687 else 2688 gc->fg = wp->cached_gc.fg; 2689 } 2690 2691 if (gc->bg == 8) { 2692 if (wp == wp->window->active && wp->cached_active_gc.bg != 8) 2693 gc->bg = wp->cached_active_gc.bg; 2694 else 2695 gc->bg = wp->cached_gc.bg; 2696 } 2697 } 2698 2699 static void 2700 tty_default_attributes(struct tty *tty, const struct grid_cell *defaults, 2701 int *palette, u_int bg) 2702 { 2703 struct grid_cell gc; 2704 2705 memcpy(&gc, &grid_default_cell, sizeof gc); 2706 gc.bg = bg; 2707 tty_attributes(tty, &gc, defaults, palette); 2708 } 2709