screen-redraw.c revision 1.1.1.14.2.1
1 /* $OpenBSD$ */ 2 3 /* 4 * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott (at) 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 21 #include <stdlib.h> 22 #include <string.h> 23 24 #include "tmux.h" 25 26 static void screen_redraw_draw_borders(struct screen_redraw_ctx *); 27 static void screen_redraw_draw_panes(struct screen_redraw_ctx *); 28 static void screen_redraw_draw_status(struct screen_redraw_ctx *); 29 static void screen_redraw_draw_pane(struct screen_redraw_ctx *, 30 struct window_pane *); 31 static void screen_redraw_set_context(struct client *, 32 struct screen_redraw_ctx *); 33 34 #define START_ISOLATE "\342\201\246" 35 #define END_ISOLATE "\342\201\251" 36 37 /* Border in relation to a pane. */ 38 enum screen_redraw_border_type { 39 SCREEN_REDRAW_OUTSIDE, 40 SCREEN_REDRAW_INSIDE, 41 SCREEN_REDRAW_BORDER_LEFT, 42 SCREEN_REDRAW_BORDER_RIGHT, 43 SCREEN_REDRAW_BORDER_TOP, 44 SCREEN_REDRAW_BORDER_BOTTOM 45 }; 46 #define BORDER_MARKERS " +,.-" 47 48 /* Get cell border character. */ 49 static void 50 screen_redraw_border_set(struct window *w, struct window_pane *wp, 51 enum pane_lines pane_lines, int cell_type, struct grid_cell *gc) 52 { 53 u_int idx; 54 55 if (cell_type == CELL_OUTSIDE && w->fill_character != NULL) { 56 utf8_copy(&gc->data, &w->fill_character[0]); 57 return; 58 } 59 60 switch (pane_lines) { 61 case PANE_LINES_NUMBER: 62 if (cell_type == CELL_OUTSIDE) { 63 gc->attr |= GRID_ATTR_CHARSET; 64 utf8_set(&gc->data, CELL_BORDERS[CELL_OUTSIDE]); 65 break; 66 } 67 gc->attr &= ~GRID_ATTR_CHARSET; 68 if (wp != NULL && window_pane_index(wp, &idx) == 0) 69 utf8_set(&gc->data, '0' + (idx % 10)); 70 else 71 utf8_set(&gc->data, '*'); 72 break; 73 case PANE_LINES_DOUBLE: 74 gc->attr &= ~GRID_ATTR_CHARSET; 75 utf8_copy(&gc->data, tty_acs_double_borders(cell_type)); 76 break; 77 case PANE_LINES_HEAVY: 78 gc->attr &= ~GRID_ATTR_CHARSET; 79 utf8_copy(&gc->data, tty_acs_heavy_borders(cell_type)); 80 break; 81 case PANE_LINES_SIMPLE: 82 gc->attr &= ~GRID_ATTR_CHARSET; 83 utf8_set(&gc->data, SIMPLE_BORDERS[cell_type]); 84 break; 85 default: 86 gc->attr |= GRID_ATTR_CHARSET; 87 utf8_set(&gc->data, CELL_BORDERS[cell_type]); 88 break; 89 } 90 } 91 92 /* Return if window has only two panes. */ 93 static int 94 screen_redraw_two_panes(struct window *w, int direction) 95 { 96 struct window_pane *wp; 97 98 wp = TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry); 99 if (wp == NULL) 100 return (0); /* one pane */ 101 if (TAILQ_NEXT(wp, entry) != NULL) 102 return (0); /* more than two panes */ 103 if (direction == 0 && wp->xoff == 0) 104 return (0); 105 if (direction == 1 && wp->yoff == 0) 106 return (0); 107 return (1); 108 } 109 110 /* Check if cell is on the border of a pane. */ 111 static enum screen_redraw_border_type 112 screen_redraw_pane_border(struct screen_redraw_ctx *ctx, struct window_pane *wp, 113 u_int px, u_int py) 114 { 115 struct options *oo = wp->window->options; 116 int split = 0; 117 u_int ex = wp->xoff + wp->sx, ey = wp->yoff + wp->sy; 118 int pane_status = ctx->pane_status; 119 120 /* Inside pane. */ 121 if (px >= wp->xoff && px < ex && py >= wp->yoff && py < ey) 122 return (SCREEN_REDRAW_INSIDE); 123 124 /* Get pane indicator. */ 125 switch (options_get_number(oo, "pane-border-indicators")) { 126 case PANE_BORDER_COLOUR: 127 case PANE_BORDER_BOTH: 128 split = 1; 129 break; 130 } 131 132 /* Left/right borders. */ 133 if (pane_status == PANE_STATUS_OFF) { 134 if (screen_redraw_two_panes(wp->window, 0) && split) { 135 if (wp->xoff == 0 && px == wp->sx && py <= wp->sy / 2) 136 return (SCREEN_REDRAW_BORDER_RIGHT); 137 if (wp->xoff != 0 && 138 px == wp->xoff - 1 && 139 py > wp->sy / 2) 140 return (SCREEN_REDRAW_BORDER_LEFT); 141 } else { 142 if ((wp->yoff == 0 || py >= wp->yoff - 1) && py <= ey) { 143 if (wp->xoff != 0 && px == wp->xoff - 1) 144 return (SCREEN_REDRAW_BORDER_LEFT); 145 if (px == ex) 146 return (SCREEN_REDRAW_BORDER_RIGHT); 147 } 148 } 149 } else { 150 if ((wp->yoff == 0 || py >= wp->yoff - 1) && py <= ey) { 151 if (wp->xoff != 0 && px == wp->xoff - 1) 152 return (SCREEN_REDRAW_BORDER_LEFT); 153 if (px == ex) 154 return (SCREEN_REDRAW_BORDER_RIGHT); 155 } 156 } 157 158 /* Top/bottom borders. */ 159 if (pane_status == PANE_STATUS_OFF) { 160 if (screen_redraw_two_panes(wp->window, 1) && split) { 161 if (wp->yoff == 0 && py == wp->sy && px <= wp->sx / 2) 162 return (SCREEN_REDRAW_BORDER_BOTTOM); 163 if (wp->yoff != 0 && 164 py == wp->yoff - 1 && 165 px > wp->sx / 2) 166 return (SCREEN_REDRAW_BORDER_TOP); 167 } else { 168 if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= ex) { 169 if (wp->yoff != 0 && py == wp->yoff - 1) 170 return (SCREEN_REDRAW_BORDER_TOP); 171 if (py == ey) 172 return (SCREEN_REDRAW_BORDER_BOTTOM); 173 } 174 } 175 } else if (pane_status == PANE_STATUS_TOP) { 176 if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= ex) { 177 if (wp->yoff != 0 && py == wp->yoff - 1) 178 return (SCREEN_REDRAW_BORDER_TOP); 179 } 180 } else { 181 if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= ex) { 182 if (py == ey) 183 return (SCREEN_REDRAW_BORDER_BOTTOM); 184 } 185 } 186 187 /* Outside pane. */ 188 return (SCREEN_REDRAW_OUTSIDE); 189 } 190 191 /* Check if a cell is on a border. */ 192 static int 193 screen_redraw_cell_border(struct screen_redraw_ctx *ctx, u_int px, u_int py) 194 { 195 struct client *c = ctx->c; 196 struct window *w = c->session->curw->window; 197 struct window_pane *wp; 198 199 /* Outside the window? */ 200 if (px > w->sx || py > w->sy) 201 return (0); 202 203 /* On the window border? */ 204 if (px == w->sx || py == w->sy) 205 return (1); 206 207 /* Check all the panes. */ 208 TAILQ_FOREACH(wp, &w->panes, entry) { 209 if (!window_pane_visible(wp)) 210 continue; 211 switch (screen_redraw_pane_border(ctx, wp, px, py)) { 212 case SCREEN_REDRAW_INSIDE: 213 return (0); 214 case SCREEN_REDRAW_OUTSIDE: 215 break; 216 default: 217 return (1); 218 } 219 } 220 221 return (0); 222 } 223 224 /* Work out type of border cell from surrounding cells. */ 225 static int 226 screen_redraw_type_of_cell(struct screen_redraw_ctx *ctx, u_int px, u_int py) 227 { 228 struct client *c = ctx->c; 229 int pane_status = ctx->pane_status; 230 struct window *w = c->session->curw->window; 231 u_int sx = w->sx, sy = w->sy; 232 int borders = 0; 233 234 /* Is this outside the window? */ 235 if (px > sx || py > sy) 236 return (CELL_OUTSIDE); 237 238 /* 239 * Construct a bitmask of whether the cells to the left (bit 4), right, 240 * top, and bottom (bit 1) of this cell are borders. 241 */ 242 if (px == 0 || screen_redraw_cell_border(ctx, px - 1, py)) 243 borders |= 8; 244 if (px <= sx && screen_redraw_cell_border(ctx, px + 1, py)) 245 borders |= 4; 246 if (pane_status == PANE_STATUS_TOP) { 247 if (py != 0 && 248 screen_redraw_cell_border(ctx, px, py - 1)) 249 borders |= 2; 250 if (screen_redraw_cell_border(ctx, px, py + 1)) 251 borders |= 1; 252 } else if (pane_status == PANE_STATUS_BOTTOM) { 253 if (py == 0 || 254 screen_redraw_cell_border(ctx, px, py - 1)) 255 borders |= 2; 256 if (py != sy - 1 && 257 screen_redraw_cell_border(ctx, px, py + 1)) 258 borders |= 1; 259 } else { 260 if (py == 0 || 261 screen_redraw_cell_border(ctx, px, py - 1)) 262 borders |= 2; 263 if (screen_redraw_cell_border(ctx, px, py + 1)) 264 borders |= 1; 265 } 266 267 /* 268 * Figure out what kind of border this cell is. Only one bit set 269 * doesn't make sense (can't have a border cell with no others 270 * connected). 271 */ 272 switch (borders) { 273 case 15: /* 1111, left right top bottom */ 274 return (CELL_JOIN); 275 case 14: /* 1110, left right top */ 276 return (CELL_BOTTOMJOIN); 277 case 13: /* 1101, left right bottom */ 278 return (CELL_TOPJOIN); 279 case 12: /* 1100, left right */ 280 return (CELL_LEFTRIGHT); 281 case 11: /* 1011, left top bottom */ 282 return (CELL_RIGHTJOIN); 283 case 10: /* 1010, left top */ 284 return (CELL_BOTTOMRIGHT); 285 case 9: /* 1001, left bottom */ 286 return (CELL_TOPRIGHT); 287 case 7: /* 0111, right top bottom */ 288 return (CELL_LEFTJOIN); 289 case 6: /* 0110, right top */ 290 return (CELL_BOTTOMLEFT); 291 case 5: /* 0101, right bottom */ 292 return (CELL_TOPLEFT); 293 case 3: /* 0011, top bottom */ 294 return (CELL_TOPBOTTOM); 295 } 296 return (CELL_OUTSIDE); 297 } 298 299 /* Check if cell inside a pane. */ 300 static int 301 screen_redraw_check_cell(struct screen_redraw_ctx *ctx, u_int px, u_int py, 302 struct window_pane **wpp) 303 { 304 struct client *c = ctx->c; 305 struct window *w = c->session->curw->window; 306 struct window_pane *wp, *active; 307 int pane_status = ctx->pane_status; 308 int border; 309 u_int right, line; 310 311 *wpp = NULL; 312 313 if (px > w->sx || py > w->sy) 314 return (CELL_OUTSIDE); 315 if (px == w->sx || py == w->sy) /* window border */ 316 return (screen_redraw_type_of_cell(ctx, px, py)); 317 318 if (pane_status != PANE_STATUS_OFF) { 319 active = wp = server_client_get_pane(c); 320 do { 321 if (!window_pane_visible(wp)) 322 goto next1; 323 324 if (pane_status == PANE_STATUS_TOP) 325 line = wp->yoff - 1; 326 else 327 line = wp->yoff + wp->sy; 328 right = wp->xoff + 2 + wp->status_size - 1; 329 330 if (py == line && px >= wp->xoff + 2 && px <= right) 331 return (CELL_INSIDE); 332 333 next1: 334 wp = TAILQ_NEXT(wp, entry); 335 if (wp == NULL) 336 wp = TAILQ_FIRST(&w->panes); 337 } while (wp != active); 338 } 339 340 active = wp = server_client_get_pane(c); 341 do { 342 if (!window_pane_visible(wp)) 343 goto next2; 344 *wpp = wp; 345 346 /* 347 * If definitely inside, return. If not on border, skip. 348 * Otherwise work out the cell. 349 */ 350 border = screen_redraw_pane_border(ctx, wp, px, py); 351 if (border == SCREEN_REDRAW_INSIDE) 352 return (CELL_INSIDE); 353 if (border == SCREEN_REDRAW_OUTSIDE) 354 goto next2; 355 return (screen_redraw_type_of_cell(ctx, px, py)); 356 357 next2: 358 wp = TAILQ_NEXT(wp, entry); 359 if (wp == NULL) 360 wp = TAILQ_FIRST(&w->panes); 361 } while (wp != active); 362 363 return (CELL_OUTSIDE); 364 } 365 366 /* Check if the border of a particular pane. */ 367 static int 368 screen_redraw_check_is(struct screen_redraw_ctx *ctx, u_int px, u_int py, 369 struct window_pane *wp) 370 { 371 enum screen_redraw_border_type border; 372 373 border = screen_redraw_pane_border(ctx, wp, px, py); 374 if (border != SCREEN_REDRAW_INSIDE && border != SCREEN_REDRAW_OUTSIDE) 375 return (1); 376 return (0); 377 } 378 379 /* Update pane status. */ 380 static int 381 screen_redraw_make_pane_status(struct client *c, struct window_pane *wp, 382 struct screen_redraw_ctx *rctx, enum pane_lines pane_lines) 383 { 384 struct window *w = wp->window; 385 struct grid_cell gc; 386 const char *fmt; 387 struct format_tree *ft; 388 char *expanded; 389 int pane_status = rctx->pane_status; 390 u_int width, i, cell_type, px, py; 391 struct screen_write_ctx ctx; 392 struct screen old; 393 394 ft = format_create(c, NULL, FORMAT_PANE|wp->id, FORMAT_STATUS); 395 format_defaults(ft, c, c->session, c->session->curw, wp); 396 397 if (wp == server_client_get_pane(c)) 398 style_apply(&gc, w->options, "pane-active-border-style", ft); 399 else 400 style_apply(&gc, w->options, "pane-border-style", ft); 401 fmt = options_get_string(wp->options, "pane-border-format"); 402 403 expanded = format_expand_time(ft, fmt); 404 if (wp->sx < 4) 405 wp->status_size = width = 0; 406 else 407 wp->status_size = width = wp->sx - 4; 408 409 memcpy(&old, &wp->status_screen, sizeof old); 410 screen_init(&wp->status_screen, width, 1, 0); 411 wp->status_screen.mode = 0; 412 413 screen_write_start(&ctx, &wp->status_screen); 414 415 for (i = 0; i < width; i++) { 416 px = wp->xoff + 2 + i; 417 if (pane_status == PANE_STATUS_TOP) 418 py = wp->yoff - 1; 419 else 420 py = wp->yoff + wp->sy; 421 cell_type = screen_redraw_type_of_cell(rctx, px, py); 422 screen_redraw_border_set(w, wp, pane_lines, cell_type, &gc); 423 screen_write_cell(&ctx, &gc); 424 } 425 gc.attr &= ~GRID_ATTR_CHARSET; 426 427 screen_write_cursormove(&ctx, 0, 0, 0); 428 format_draw(&ctx, &gc, width, expanded, NULL, 0); 429 screen_write_stop(&ctx); 430 431 free(expanded); 432 format_free(ft); 433 434 if (grid_compare(wp->status_screen.grid, old.grid) == 0) { 435 screen_free(&old); 436 return (0); 437 } 438 screen_free(&old); 439 return (1); 440 } 441 442 /* Draw pane status. */ 443 static void 444 screen_redraw_draw_pane_status(struct screen_redraw_ctx *ctx) 445 { 446 struct client *c = ctx->c; 447 struct window *w = c->session->curw->window; 448 struct tty *tty = &c->tty; 449 struct window_pane *wp; 450 struct screen *s; 451 u_int i, x, width, xoff, yoff, size; 452 453 log_debug("%s: %s @%u", __func__, c->name, w->id); 454 455 TAILQ_FOREACH(wp, &w->panes, entry) { 456 if (!window_pane_visible(wp)) 457 continue; 458 s = &wp->status_screen; 459 460 size = wp->status_size; 461 if (ctx->pane_status == PANE_STATUS_TOP) 462 yoff = wp->yoff - 1; 463 else 464 yoff = wp->yoff + wp->sy; 465 xoff = wp->xoff + 2; 466 467 if (xoff + size <= ctx->ox || 468 xoff >= ctx->ox + ctx->sx || 469 yoff < ctx->oy || 470 yoff >= ctx->oy + ctx->sy) 471 continue; 472 473 if (xoff >= ctx->ox && xoff + size <= ctx->ox + ctx->sx) { 474 /* All visible. */ 475 i = 0; 476 x = xoff - ctx->ox; 477 width = size; 478 } else if (xoff < ctx->ox && xoff + size > ctx->ox + ctx->sx) { 479 /* Both left and right not visible. */ 480 i = ctx->ox; 481 x = 0; 482 width = ctx->sx; 483 } else if (xoff < ctx->ox) { 484 /* Left not visible. */ 485 i = ctx->ox - xoff; 486 x = 0; 487 width = size - i; 488 } else { 489 /* Right not visible. */ 490 i = 0; 491 x = xoff - ctx->ox; 492 width = size - x; 493 } 494 495 if (ctx->statustop) 496 yoff += ctx->statuslines; 497 tty_draw_line(tty, s, i, 0, width, x, yoff - ctx->oy, 498 &grid_default_cell, NULL); 499 } 500 tty_cursor(tty, 0, 0); 501 } 502 503 /* Update status line and change flags if unchanged. */ 504 static uint64_t 505 screen_redraw_update(struct client *c, uint64_t flags) 506 { 507 struct window *w = c->session->curw->window; 508 struct window_pane *wp; 509 struct options *wo = w->options; 510 int redraw; 511 enum pane_lines lines; 512 struct screen_redraw_ctx ctx; 513 514 if (c->message_string != NULL) 515 redraw = status_message_redraw(c); 516 else if (c->prompt_string != NULL) 517 redraw = status_prompt_redraw(c); 518 else 519 redraw = status_redraw(c); 520 if (!redraw && (~flags & CLIENT_REDRAWSTATUSALWAYS)) 521 flags &= ~CLIENT_REDRAWSTATUS; 522 523 if (c->overlay_draw != NULL) 524 flags |= CLIENT_REDRAWOVERLAY; 525 526 if (options_get_number(wo, "pane-border-status") != PANE_STATUS_OFF) { 527 screen_redraw_set_context(c, &ctx); 528 lines = options_get_number(wo, "pane-border-lines"); 529 redraw = 0; 530 TAILQ_FOREACH(wp, &w->panes, entry) { 531 if (screen_redraw_make_pane_status(c, wp, &ctx, lines)) 532 redraw = 1; 533 } 534 if (redraw) 535 flags |= CLIENT_REDRAWBORDERS; 536 } 537 return (flags); 538 } 539 540 /* Set up redraw context. */ 541 static void 542 screen_redraw_set_context(struct client *c, struct screen_redraw_ctx *ctx) 543 { 544 struct session *s = c->session; 545 struct options *oo = s->options; 546 struct window *w = s->curw->window; 547 struct options *wo = w->options; 548 u_int lines; 549 550 memset(ctx, 0, sizeof *ctx); 551 ctx->c = c; 552 553 lines = status_line_size(c); 554 if (c->message_string != NULL || c->prompt_string != NULL) 555 lines = (lines == 0) ? 1 : lines; 556 if (lines != 0 && options_get_number(oo, "status-position") == 0) 557 ctx->statustop = 1; 558 ctx->statuslines = lines; 559 560 ctx->pane_status = options_get_number(wo, "pane-border-status"); 561 ctx->pane_lines = options_get_number(wo, "pane-border-lines"); 562 563 tty_window_offset(&c->tty, &ctx->ox, &ctx->oy, &ctx->sx, &ctx->sy); 564 565 log_debug("%s: %s @%u ox=%u oy=%u sx=%u sy=%u %u/%d", __func__, c->name, 566 w->id, ctx->ox, ctx->oy, ctx->sx, ctx->sy, ctx->statuslines, 567 ctx->statustop); 568 } 569 570 /* Redraw entire screen. */ 571 void 572 screen_redraw_screen(struct client *c) 573 { 574 struct screen_redraw_ctx ctx; 575 uint64_t flags; 576 577 if (c->flags & CLIENT_SUSPENDED) 578 return; 579 580 flags = screen_redraw_update(c, c->flags); 581 if ((flags & CLIENT_ALLREDRAWFLAGS) == 0) 582 return; 583 584 screen_redraw_set_context(c, &ctx); 585 tty_sync_start(&c->tty); 586 tty_update_mode(&c->tty, c->tty.mode, NULL); 587 588 if (flags & (CLIENT_REDRAWWINDOW|CLIENT_REDRAWBORDERS)) { 589 log_debug("%s: redrawing borders", c->name); 590 if (ctx.pane_status != PANE_STATUS_OFF) 591 screen_redraw_draw_pane_status(&ctx); 592 screen_redraw_draw_borders(&ctx); 593 } 594 if (flags & CLIENT_REDRAWWINDOW) { 595 log_debug("%s: redrawing panes", c->name); 596 screen_redraw_draw_panes(&ctx); 597 } 598 if (ctx.statuslines != 0 && 599 (flags & (CLIENT_REDRAWSTATUS|CLIENT_REDRAWSTATUSALWAYS))) { 600 log_debug("%s: redrawing status", c->name); 601 screen_redraw_draw_status(&ctx); 602 } 603 if (c->overlay_draw != NULL && (flags & CLIENT_REDRAWOVERLAY)) { 604 log_debug("%s: redrawing overlay", c->name); 605 c->overlay_draw(c, c->overlay_data, &ctx); 606 } 607 608 tty_reset(&c->tty); 609 } 610 611 /* Redraw a single pane. */ 612 void 613 screen_redraw_pane(struct client *c, struct window_pane *wp) 614 { 615 struct screen_redraw_ctx ctx; 616 617 if (!window_pane_visible(wp)) 618 return; 619 620 screen_redraw_set_context(c, &ctx); 621 tty_sync_start(&c->tty); 622 tty_update_mode(&c->tty, c->tty.mode, NULL); 623 624 screen_redraw_draw_pane(&ctx, wp); 625 626 tty_reset(&c->tty); 627 } 628 629 /* Get border cell style. */ 630 static const struct grid_cell * 631 screen_redraw_draw_borders_style(struct screen_redraw_ctx *ctx, u_int x, 632 u_int y, struct window_pane *wp) 633 { 634 struct client *c = ctx->c; 635 struct session *s = c->session; 636 struct window *w = s->curw->window; 637 struct window_pane *active = server_client_get_pane(c); 638 struct options *oo = w->options; 639 struct format_tree *ft; 640 641 if (wp->border_gc_set) 642 return (&wp->border_gc); 643 wp->border_gc_set = 1; 644 645 ft = format_create_defaults(NULL, c, s, s->curw, wp); 646 if (screen_redraw_check_is(ctx, x, y, active)) 647 style_apply(&wp->border_gc, oo, "pane-active-border-style", ft); 648 else 649 style_apply(&wp->border_gc, oo, "pane-border-style", ft); 650 format_free(ft); 651 652 return (&wp->border_gc); 653 } 654 655 /* Draw a border cell. */ 656 static void 657 screen_redraw_draw_borders_cell(struct screen_redraw_ctx *ctx, u_int i, u_int j) 658 { 659 struct client *c = ctx->c; 660 struct session *s = c->session; 661 struct window *w = s->curw->window; 662 struct options *oo = w->options; 663 struct tty *tty = &c->tty; 664 struct format_tree *ft; 665 struct window_pane *wp, *active = server_client_get_pane(c); 666 struct grid_cell gc; 667 const struct grid_cell *tmp; 668 struct overlay_ranges r; 669 u_int cell_type, x = ctx->ox + i, y = ctx->oy + j; 670 int arrows = 0, border; 671 int isolates; 672 673 if (c->overlay_check != NULL) { 674 c->overlay_check(c, c->overlay_data, x, y, 1, &r); 675 if (r.nx[0] + r.nx[1] == 0) 676 return; 677 } 678 679 cell_type = screen_redraw_check_cell(ctx, x, y, &wp); 680 if (cell_type == CELL_INSIDE) 681 return; 682 683 if (wp == NULL) { 684 if (!ctx->no_pane_gc_set) { 685 ft = format_create_defaults(NULL, c, s, s->curw, NULL); 686 memcpy(&ctx->no_pane_gc, &grid_default_cell, sizeof gc); 687 style_add(&ctx->no_pane_gc, oo, "pane-border-style", 688 ft); 689 format_free(ft); 690 ctx->no_pane_gc_set = 1; 691 } 692 memcpy(&gc, &ctx->no_pane_gc, sizeof gc); 693 } else { 694 tmp = screen_redraw_draw_borders_style(ctx, x, y, wp); 695 if (tmp == NULL) 696 return; 697 memcpy(&gc, tmp, sizeof gc); 698 699 if (server_is_marked(s, s->curw, marked_pane.wp) && 700 screen_redraw_check_is(ctx, x, y, marked_pane.wp)) 701 gc.attr ^= GRID_ATTR_REVERSE; 702 } 703 screen_redraw_border_set(w, wp, ctx->pane_lines, cell_type, &gc); 704 705 if (cell_type == CELL_TOPBOTTOM && 706 (c->flags & CLIENT_UTF8) && 707 tty_term_has(tty->term, TTYC_BIDI)) 708 isolates = 1; 709 else 710 isolates = 0; 711 712 if (ctx->statustop) 713 tty_cursor(tty, i, ctx->statuslines + j); 714 else 715 tty_cursor(tty, i, j); 716 if (isolates) 717 tty_puts(tty, END_ISOLATE); 718 719 switch (options_get_number(oo, "pane-border-indicators")) { 720 case PANE_BORDER_ARROWS: 721 case PANE_BORDER_BOTH: 722 arrows = 1; 723 break; 724 } 725 726 if (wp != NULL && arrows) { 727 border = screen_redraw_pane_border(ctx, active, x, y); 728 if (((i == wp->xoff + 1 && 729 (cell_type == CELL_LEFTRIGHT || 730 (cell_type == CELL_TOPJOIN && 731 border == SCREEN_REDRAW_BORDER_BOTTOM) || 732 (cell_type == CELL_BOTTOMJOIN && 733 border == SCREEN_REDRAW_BORDER_TOP))) || 734 (j == wp->yoff + 1 && 735 (cell_type == CELL_TOPBOTTOM || 736 (cell_type == CELL_LEFTJOIN && 737 border == SCREEN_REDRAW_BORDER_RIGHT) || 738 (cell_type == CELL_RIGHTJOIN && 739 border == SCREEN_REDRAW_BORDER_LEFT)))) && 740 screen_redraw_check_is(ctx, x, y, active)) { 741 gc.attr |= GRID_ATTR_CHARSET; 742 utf8_set(&gc.data, BORDER_MARKERS[border]); 743 } 744 } 745 746 tty_cell(tty, &gc, &grid_default_cell, NULL, NULL); 747 if (isolates) 748 tty_puts(tty, START_ISOLATE); 749 } 750 751 /* Draw the borders. */ 752 static void 753 screen_redraw_draw_borders(struct screen_redraw_ctx *ctx) 754 { 755 struct client *c = ctx->c; 756 struct session *s = c->session; 757 struct window *w = s->curw->window; 758 struct window_pane *wp; 759 u_int i, j; 760 761 log_debug("%s: %s @%u", __func__, c->name, w->id); 762 763 TAILQ_FOREACH(wp, &w->panes, entry) 764 wp->border_gc_set = 0; 765 766 for (j = 0; j < c->tty.sy - ctx->statuslines; j++) { 767 for (i = 0; i < c->tty.sx; i++) 768 screen_redraw_draw_borders_cell(ctx, i, j); 769 } 770 } 771 772 /* Draw the panes. */ 773 static void 774 screen_redraw_draw_panes(struct screen_redraw_ctx *ctx) 775 { 776 struct client *c = ctx->c; 777 struct window *w = c->session->curw->window; 778 struct window_pane *wp; 779 780 log_debug("%s: %s @%u", __func__, c->name, w->id); 781 782 TAILQ_FOREACH(wp, &w->panes, entry) { 783 if (window_pane_visible(wp)) 784 screen_redraw_draw_pane(ctx, wp); 785 } 786 } 787 788 /* Draw the status line. */ 789 static void 790 screen_redraw_draw_status(struct screen_redraw_ctx *ctx) 791 { 792 struct client *c = ctx->c; 793 struct window *w = c->session->curw->window; 794 struct tty *tty = &c->tty; 795 struct screen *s = c->status.active; 796 u_int i, y; 797 798 log_debug("%s: %s @%u", __func__, c->name, w->id); 799 800 if (ctx->statustop) 801 y = 0; 802 else 803 y = c->tty.sy - ctx->statuslines; 804 for (i = 0; i < ctx->statuslines; i++) { 805 tty_draw_line(tty, s, 0, i, UINT_MAX, 0, y + i, 806 &grid_default_cell, NULL); 807 } 808 } 809 810 /* Draw one pane. */ 811 static void 812 screen_redraw_draw_pane(struct screen_redraw_ctx *ctx, struct window_pane *wp) 813 { 814 struct client *c = ctx->c; 815 struct window *w = c->session->curw->window; 816 struct tty *tty = &c->tty; 817 struct screen *s = wp->screen; 818 struct colour_palette *palette = &wp->palette; 819 struct grid_cell defaults; 820 u_int i, j, top, x, y, width; 821 822 log_debug("%s: %s @%u %%%u", __func__, c->name, w->id, wp->id); 823 824 if (wp->xoff + wp->sx <= ctx->ox || wp->xoff >= ctx->ox + ctx->sx) 825 return; 826 if (ctx->statustop) 827 top = ctx->statuslines; 828 else 829 top = 0; 830 for (j = 0; j < wp->sy; j++) { 831 if (wp->yoff + j < ctx->oy || wp->yoff + j >= ctx->oy + ctx->sy) 832 continue; 833 y = top + wp->yoff + j - ctx->oy; 834 835 if (wp->xoff >= ctx->ox && 836 wp->xoff + wp->sx <= ctx->ox + ctx->sx) { 837 /* All visible. */ 838 i = 0; 839 x = wp->xoff - ctx->ox; 840 width = wp->sx; 841 } else if (wp->xoff < ctx->ox && 842 wp->xoff + wp->sx > ctx->ox + ctx->sx) { 843 /* Both left and right not visible. */ 844 i = ctx->ox; 845 x = 0; 846 width = ctx->sx; 847 } else if (wp->xoff < ctx->ox) { 848 /* Left not visible. */ 849 i = ctx->ox - wp->xoff; 850 x = 0; 851 width = wp->sx - i; 852 } else { 853 /* Right not visible. */ 854 i = 0; 855 x = wp->xoff - ctx->ox; 856 width = ctx->sx - x; 857 } 858 log_debug("%s: %s %%%u line %u,%u at %u,%u, width %u", 859 __func__, c->name, wp->id, i, j, x, y, width); 860 861 tty_default_colours(&defaults, wp); 862 tty_draw_line(tty, s, i, j, width, x, y, &defaults, palette); 863 } 864 865 #ifdef ENABLE_SIXEL 866 tty_draw_images(c, wp, s); 867 #endif 868 } 869
Indexes created Sun May 03 00:22:47 UTC 2026