screen-redraw.c revision 1.1.1.13
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 window_pane *wp, u_int px, u_int py, 113 int pane_status) 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; 118 119 /* Inside pane. */ 120 if (px >= wp->xoff && px < ex && py >= wp->yoff && py < ey) 121 return (SCREEN_REDRAW_INSIDE); 122 123 /* Get pane indicator. */ 124 switch (options_get_number(oo, "pane-border-indicators")) { 125 case PANE_BORDER_COLOUR: 126 case PANE_BORDER_BOTH: 127 split = 1; 128 break; 129 } 130 131 /* Left/right borders. */ 132 if (pane_status == PANE_STATUS_OFF) { 133 if (screen_redraw_two_panes(wp->window, 0) && split) { 134 if (wp->xoff == 0 && px == wp->sx && py <= wp->sy / 2) 135 return (SCREEN_REDRAW_BORDER_RIGHT); 136 if (wp->xoff != 0 && 137 px == wp->xoff - 1 && 138 py > wp->sy / 2) 139 return (SCREEN_REDRAW_BORDER_LEFT); 140 } else { 141 if ((wp->yoff == 0 || py >= wp->yoff - 1) && py <= ey) { 142 if (wp->xoff != 0 && px == wp->xoff - 1) 143 return (SCREEN_REDRAW_BORDER_LEFT); 144 if (px == ex) 145 return (SCREEN_REDRAW_BORDER_RIGHT); 146 } 147 } 148 } else { 149 if ((wp->yoff == 0 || py >= wp->yoff - 1) && py <= ey) { 150 if (wp->xoff != 0 && px == wp->xoff - 1) 151 return (SCREEN_REDRAW_BORDER_LEFT); 152 if (px == ex) 153 return (SCREEN_REDRAW_BORDER_RIGHT); 154 } 155 } 156 157 /* Top/bottom borders. */ 158 if (pane_status == PANE_STATUS_OFF) { 159 if (screen_redraw_two_panes(wp->window, 1) && split) { 160 if (wp->yoff == 0 && py == wp->sy && px <= wp->sx / 2) 161 return (SCREEN_REDRAW_BORDER_BOTTOM); 162 if (wp->yoff != 0 && 163 py == wp->yoff - 1 && 164 px > wp->sx / 2) 165 return (SCREEN_REDRAW_BORDER_TOP); 166 } else { 167 if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= ex) { 168 if (wp->yoff != 0 && py == wp->yoff - 1) 169 return (SCREEN_REDRAW_BORDER_TOP); 170 if (py == ey) 171 return (SCREEN_REDRAW_BORDER_BOTTOM); 172 } 173 } 174 } else if (pane_status == PANE_STATUS_TOP) { 175 if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= ex) { 176 if (wp->yoff != 0 && py == wp->yoff - 1) 177 return (SCREEN_REDRAW_BORDER_TOP); 178 } 179 } else { 180 if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= ex) { 181 if (py == ey) 182 return (SCREEN_REDRAW_BORDER_BOTTOM); 183 } 184 } 185 186 /* Outside pane. */ 187 return (SCREEN_REDRAW_OUTSIDE); 188 } 189 190 /* Check if a cell is on a border. */ 191 static int 192 screen_redraw_cell_border(struct client *c, u_int px, u_int py, int pane_status) 193 { 194 struct window *w = c->session->curw->window; 195 struct window_pane *wp; 196 197 /* Outside the window? */ 198 if (px > w->sx || py > w->sy) 199 return (0); 200 201 /* On the window border? */ 202 if (px == w->sx || py == w->sy) 203 return (1); 204 205 /* Check all the panes. */ 206 TAILQ_FOREACH(wp, &w->panes, entry) { 207 if (!window_pane_visible(wp)) 208 continue; 209 switch (screen_redraw_pane_border(wp, px, py, pane_status)) { 210 case SCREEN_REDRAW_INSIDE: 211 return (0); 212 case SCREEN_REDRAW_OUTSIDE: 213 break; 214 default: 215 return (1); 216 } 217 } 218 219 return (0); 220 } 221 222 /* Work out type of border cell from surrounding cells. */ 223 static int 224 screen_redraw_type_of_cell(struct client *c, u_int px, u_int py, 225 int pane_status) 226 { 227 struct window *w = c->session->curw->window; 228 u_int sx = w->sx, sy = w->sy; 229 int borders = 0; 230 231 /* Is this outside the window? */ 232 if (px > sx || py > sy) 233 return (CELL_OUTSIDE); 234 235 /* 236 * Construct a bitmask of whether the cells to the left (bit 4), right, 237 * top, and bottom (bit 1) of this cell are borders. 238 */ 239 if (px == 0 || screen_redraw_cell_border(c, px - 1, py, pane_status)) 240 borders |= 8; 241 if (px <= sx && screen_redraw_cell_border(c, px + 1, py, pane_status)) 242 borders |= 4; 243 if (pane_status == PANE_STATUS_TOP) { 244 if (py != 0 && 245 screen_redraw_cell_border(c, px, py - 1, pane_status)) 246 borders |= 2; 247 if (screen_redraw_cell_border(c, px, py + 1, pane_status)) 248 borders |= 1; 249 } else if (pane_status == PANE_STATUS_BOTTOM) { 250 if (py == 0 || 251 screen_redraw_cell_border(c, px, py - 1, pane_status)) 252 borders |= 2; 253 if (py != sy - 1 && 254 screen_redraw_cell_border(c, px, py + 1, pane_status)) 255 borders |= 1; 256 } else { 257 if (py == 0 || 258 screen_redraw_cell_border(c, px, py - 1, pane_status)) 259 borders |= 2; 260 if (screen_redraw_cell_border(c, px, py + 1, pane_status)) 261 borders |= 1; 262 } 263 264 /* 265 * Figure out what kind of border this cell is. Only one bit set 266 * doesn't make sense (can't have a border cell with no others 267 * connected). 268 */ 269 switch (borders) { 270 case 15: /* 1111, left right top bottom */ 271 return (CELL_JOIN); 272 case 14: /* 1110, left right top */ 273 return (CELL_BOTTOMJOIN); 274 case 13: /* 1101, left right bottom */ 275 return (CELL_TOPJOIN); 276 case 12: /* 1100, left right */ 277 return (CELL_LEFTRIGHT); 278 case 11: /* 1011, left top bottom */ 279 return (CELL_RIGHTJOIN); 280 case 10: /* 1010, left top */ 281 return (CELL_BOTTOMRIGHT); 282 case 9: /* 1001, left bottom */ 283 return (CELL_TOPRIGHT); 284 case 7: /* 0111, right top bottom */ 285 return (CELL_LEFTJOIN); 286 case 6: /* 0110, right top */ 287 return (CELL_BOTTOMLEFT); 288 case 5: /* 0101, right bottom */ 289 return (CELL_TOPLEFT); 290 case 3: /* 0011, top bottom */ 291 return (CELL_TOPBOTTOM); 292 } 293 return (CELL_OUTSIDE); 294 } 295 296 /* Check if cell inside a pane. */ 297 static int 298 screen_redraw_check_cell(struct client *c, u_int px, u_int py, int pane_status, 299 struct window_pane **wpp) 300 { 301 struct window *w = c->session->curw->window; 302 struct window_pane *wp, *active; 303 int border; 304 u_int right, line; 305 306 *wpp = NULL; 307 308 if (px > w->sx || py > w->sy) 309 return (CELL_OUTSIDE); 310 if (px == w->sx || py == w->sy) /* window border */ 311 return (screen_redraw_type_of_cell(c, px, py, pane_status)); 312 313 if (pane_status != PANE_STATUS_OFF) { 314 active = wp = server_client_get_pane(c); 315 do { 316 if (!window_pane_visible(wp)) 317 goto next1; 318 319 if (pane_status == PANE_STATUS_TOP) 320 line = wp->yoff - 1; 321 else 322 line = wp->yoff + wp->sy; 323 right = wp->xoff + 2 + wp->status_size - 1; 324 325 if (py == line && px >= wp->xoff + 2 && px <= right) 326 return (CELL_INSIDE); 327 328 next1: 329 wp = TAILQ_NEXT(wp, entry); 330 if (wp == NULL) 331 wp = TAILQ_FIRST(&w->panes); 332 } while (wp != active); 333 } 334 335 active = wp = server_client_get_pane(c); 336 do { 337 if (!window_pane_visible(wp)) 338 goto next2; 339 *wpp = wp; 340 341 /* 342 * If definitely inside, return. If not on border, skip. 343 * Otherwise work out the cell. 344 */ 345 border = screen_redraw_pane_border(wp, px, py, pane_status); 346 if (border == SCREEN_REDRAW_INSIDE) 347 return (CELL_INSIDE); 348 if (border == SCREEN_REDRAW_OUTSIDE) 349 goto next2; 350 return (screen_redraw_type_of_cell(c, px, py, pane_status)); 351 352 next2: 353 wp = TAILQ_NEXT(wp, entry); 354 if (wp == NULL) 355 wp = TAILQ_FIRST(&w->panes); 356 } while (wp != active); 357 358 return (CELL_OUTSIDE); 359 } 360 361 /* Check if the border of a particular pane. */ 362 static int 363 screen_redraw_check_is(u_int px, u_int py, int pane_status, 364 struct window_pane *wp) 365 { 366 enum screen_redraw_border_type border; 367 368 border = screen_redraw_pane_border(wp, px, py, pane_status); 369 if (border != SCREEN_REDRAW_INSIDE && border != SCREEN_REDRAW_OUTSIDE) 370 return (1); 371 return (0); 372 } 373 374 /* Update pane status. */ 375 static int 376 screen_redraw_make_pane_status(struct client *c, struct window_pane *wp, 377 struct screen_redraw_ctx *rctx, enum pane_lines pane_lines) 378 { 379 struct window *w = wp->window; 380 struct grid_cell gc; 381 const char *fmt; 382 struct format_tree *ft; 383 char *expanded; 384 int pane_status = rctx->pane_status; 385 u_int width, i, cell_type, px, py; 386 struct screen_write_ctx ctx; 387 struct screen old; 388 389 ft = format_create(c, NULL, FORMAT_PANE|wp->id, FORMAT_STATUS); 390 format_defaults(ft, c, c->session, c->session->curw, wp); 391 392 if (wp == server_client_get_pane(c)) 393 style_apply(&gc, w->options, "pane-active-border-style", ft); 394 else 395 style_apply(&gc, w->options, "pane-border-style", ft); 396 fmt = options_get_string(wp->options, "pane-border-format"); 397 398 expanded = format_expand_time(ft, fmt); 399 if (wp->sx < 4) 400 wp->status_size = width = 0; 401 else 402 wp->status_size = width = wp->sx - 4; 403 404 memcpy(&old, &wp->status_screen, sizeof old); 405 screen_init(&wp->status_screen, width, 1, 0); 406 wp->status_screen.mode = 0; 407 408 screen_write_start(&ctx, &wp->status_screen); 409 410 for (i = 0; i < width; i++) { 411 px = wp->xoff + 2 + i; 412 if (rctx->pane_status == PANE_STATUS_TOP) 413 py = wp->yoff - 1; 414 else 415 py = wp->yoff + wp->sy; 416 cell_type = screen_redraw_type_of_cell(c, px, py, pane_status); 417 screen_redraw_border_set(w, wp, pane_lines, cell_type, &gc); 418 screen_write_cell(&ctx, &gc); 419 } 420 gc.attr &= ~GRID_ATTR_CHARSET; 421 422 screen_write_cursormove(&ctx, 0, 0, 0); 423 format_draw(&ctx, &gc, width, expanded, NULL, 0); 424 screen_write_stop(&ctx); 425 426 free(expanded); 427 format_free(ft); 428 429 if (grid_compare(wp->status_screen.grid, old.grid) == 0) { 430 screen_free(&old); 431 return (0); 432 } 433 screen_free(&old); 434 return (1); 435 } 436 437 /* Draw pane status. */ 438 static void 439 screen_redraw_draw_pane_status(struct screen_redraw_ctx *ctx) 440 { 441 struct client *c = ctx->c; 442 struct window *w = c->session->curw->window; 443 struct tty *tty = &c->tty; 444 struct window_pane *wp; 445 struct screen *s; 446 u_int i, x, width, xoff, yoff, size; 447 448 log_debug("%s: %s @%u", __func__, c->name, w->id); 449 450 TAILQ_FOREACH(wp, &w->panes, entry) { 451 if (!window_pane_visible(wp)) 452 continue; 453 s = &wp->status_screen; 454 455 size = wp->status_size; 456 if (ctx->pane_status == PANE_STATUS_TOP) 457 yoff = wp->yoff - 1; 458 else 459 yoff = wp->yoff + wp->sy; 460 xoff = wp->xoff + 2; 461 462 if (xoff + size <= ctx->ox || 463 xoff >= ctx->ox + ctx->sx || 464 yoff < ctx->oy || 465 yoff >= ctx->oy + ctx->sy) 466 continue; 467 468 if (xoff >= ctx->ox && xoff + size <= ctx->ox + ctx->sx) { 469 /* All visible. */ 470 i = 0; 471 x = xoff - ctx->ox; 472 width = size; 473 } else if (xoff < ctx->ox && xoff + size > ctx->ox + ctx->sx) { 474 /* Both left and right not visible. */ 475 i = ctx->ox; 476 x = 0; 477 width = ctx->sx; 478 } else if (xoff < ctx->ox) { 479 /* Left not visible. */ 480 i = ctx->ox - xoff; 481 x = 0; 482 width = size - i; 483 } else { 484 /* Right not visible. */ 485 i = 0; 486 x = xoff - ctx->ox; 487 width = size - x; 488 } 489 490 if (ctx->statustop) 491 yoff += ctx->statuslines; 492 tty_draw_line(tty, s, i, 0, width, x, yoff - ctx->oy, 493 &grid_default_cell, NULL); 494 } 495 tty_cursor(tty, 0, 0); 496 } 497 498 /* Update status line and change flags if unchanged. */ 499 static int 500 screen_redraw_update(struct client *c, int flags) 501 { 502 struct window *w = c->session->curw->window; 503 struct window_pane *wp; 504 struct options *wo = w->options; 505 int redraw; 506 enum pane_lines lines; 507 struct screen_redraw_ctx ctx; 508 509 if (c->message_string != NULL) 510 redraw = status_message_redraw(c); 511 else if (c->prompt_string != NULL) 512 redraw = status_prompt_redraw(c); 513 else 514 redraw = status_redraw(c); 515 if (!redraw && (~flags & CLIENT_REDRAWSTATUSALWAYS)) 516 flags &= ~CLIENT_REDRAWSTATUS; 517 518 if (c->overlay_draw != NULL) 519 flags |= CLIENT_REDRAWOVERLAY; 520 521 if (options_get_number(wo, "pane-border-status") != PANE_STATUS_OFF) { 522 screen_redraw_set_context(c, &ctx); 523 lines = options_get_number(wo, "pane-border-lines"); 524 redraw = 0; 525 TAILQ_FOREACH(wp, &w->panes, entry) { 526 if (screen_redraw_make_pane_status(c, wp, &ctx, lines)) 527 redraw = 1; 528 } 529 if (redraw) 530 flags |= CLIENT_REDRAWBORDERS; 531 } 532 return (flags); 533 } 534 535 /* Set up redraw context. */ 536 static void 537 screen_redraw_set_context(struct client *c, struct screen_redraw_ctx *ctx) 538 { 539 struct session *s = c->session; 540 struct options *oo = s->options; 541 struct window *w = s->curw->window; 542 struct options *wo = w->options; 543 u_int lines; 544 545 memset(ctx, 0, sizeof *ctx); 546 ctx->c = c; 547 548 lines = status_line_size(c); 549 if (c->message_string != NULL || c->prompt_string != NULL) 550 lines = (lines == 0) ? 1 : lines; 551 if (lines != 0 && options_get_number(oo, "status-position") == 0) 552 ctx->statustop = 1; 553 ctx->statuslines = lines; 554 555 ctx->pane_status = options_get_number(wo, "pane-border-status"); 556 ctx->pane_lines = options_get_number(wo, "pane-border-lines"); 557 558 tty_window_offset(&c->tty, &ctx->ox, &ctx->oy, &ctx->sx, &ctx->sy); 559 560 log_debug("%s: %s @%u ox=%u oy=%u sx=%u sy=%u %u/%d", __func__, c->name, 561 w->id, ctx->ox, ctx->oy, ctx->sx, ctx->sy, ctx->statuslines, 562 ctx->statustop); 563 } 564 565 /* Redraw entire screen. */ 566 void 567 screen_redraw_screen(struct client *c) 568 { 569 struct screen_redraw_ctx ctx; 570 int flags; 571 572 if (c->flags & CLIENT_SUSPENDED) 573 return; 574 575 flags = screen_redraw_update(c, c->flags); 576 if ((flags & CLIENT_ALLREDRAWFLAGS) == 0) 577 return; 578 579 screen_redraw_set_context(c, &ctx); 580 tty_sync_start(&c->tty); 581 tty_update_mode(&c->tty, c->tty.mode, NULL); 582 583 if (flags & (CLIENT_REDRAWWINDOW|CLIENT_REDRAWBORDERS)) { 584 log_debug("%s: redrawing borders", c->name); 585 if (ctx.pane_status != PANE_STATUS_OFF) 586 screen_redraw_draw_pane_status(&ctx); 587 screen_redraw_draw_borders(&ctx); 588 } 589 if (flags & CLIENT_REDRAWWINDOW) { 590 log_debug("%s: redrawing panes", c->name); 591 screen_redraw_draw_panes(&ctx); 592 } 593 if (ctx.statuslines != 0 && 594 (flags & (CLIENT_REDRAWSTATUS|CLIENT_REDRAWSTATUSALWAYS))) { 595 log_debug("%s: redrawing status", c->name); 596 screen_redraw_draw_status(&ctx); 597 } 598 if (c->overlay_draw != NULL && (flags & CLIENT_REDRAWOVERLAY)) { 599 log_debug("%s: redrawing overlay", c->name); 600 c->overlay_draw(c, c->overlay_data, &ctx); 601 } 602 603 tty_reset(&c->tty); 604 } 605 606 /* Redraw a single pane. */ 607 void 608 screen_redraw_pane(struct client *c, struct window_pane *wp) 609 { 610 struct screen_redraw_ctx ctx; 611 612 if (!window_pane_visible(wp)) 613 return; 614 615 screen_redraw_set_context(c, &ctx); 616 tty_sync_start(&c->tty); 617 tty_update_mode(&c->tty, c->tty.mode, NULL); 618 619 screen_redraw_draw_pane(&ctx, wp); 620 621 tty_reset(&c->tty); 622 } 623 624 /* Get border cell style. */ 625 static const struct grid_cell * 626 screen_redraw_draw_borders_style(struct screen_redraw_ctx *ctx, u_int x, 627 u_int y, struct window_pane *wp) 628 { 629 struct client *c = ctx->c; 630 struct session *s = c->session; 631 struct window *w = s->curw->window; 632 struct window_pane *active = server_client_get_pane(c); 633 struct options *oo = w->options; 634 struct format_tree *ft; 635 636 if (wp->border_gc_set) 637 return (&wp->border_gc); 638 wp->border_gc_set = 1; 639 640 ft = format_create_defaults(NULL, c, s, s->curw, wp); 641 if (screen_redraw_check_is(x, y, ctx->pane_status, active)) 642 style_apply(&wp->border_gc, oo, "pane-active-border-style", ft); 643 else 644 style_apply(&wp->border_gc, oo, "pane-border-style", ft); 645 format_free(ft); 646 647 return (&wp->border_gc); 648 } 649 650 /* Draw a border cell. */ 651 static void 652 screen_redraw_draw_borders_cell(struct screen_redraw_ctx *ctx, u_int i, u_int j) 653 { 654 struct client *c = ctx->c; 655 struct session *s = c->session; 656 struct window *w = s->curw->window; 657 struct options *oo = w->options; 658 struct tty *tty = &c->tty; 659 struct format_tree *ft; 660 struct window_pane *wp, *active = server_client_get_pane(c); 661 struct grid_cell gc; 662 const struct grid_cell *tmp; 663 struct overlay_ranges r; 664 u_int cell_type, x = ctx->ox + i, y = ctx->oy + j; 665 int arrows = 0, border; 666 int pane_status = ctx->pane_status, isolates; 667 668 if (c->overlay_check != NULL) { 669 c->overlay_check(c, c->overlay_data, x, y, 1, &r); 670 if (r.nx[0] + r.nx[1] == 0) 671 return; 672 } 673 674 cell_type = screen_redraw_check_cell(c, x, y, pane_status, &wp); 675 if (cell_type == CELL_INSIDE) 676 return; 677 678 if (wp == NULL) { 679 if (!ctx->no_pane_gc_set) { 680 ft = format_create_defaults(NULL, c, s, s->curw, NULL); 681 memcpy(&ctx->no_pane_gc, &grid_default_cell, sizeof gc); 682 style_add(&ctx->no_pane_gc, oo, "pane-border-style", 683 ft); 684 format_free(ft); 685 ctx->no_pane_gc_set = 1; 686 } 687 memcpy(&gc, &ctx->no_pane_gc, sizeof gc); 688 } else { 689 tmp = screen_redraw_draw_borders_style(ctx, x, y, wp); 690 if (tmp == NULL) 691 return; 692 memcpy(&gc, tmp, sizeof gc); 693 694 if (server_is_marked(s, s->curw, marked_pane.wp) && 695 screen_redraw_check_is(x, y, pane_status, marked_pane.wp)) 696 gc.attr ^= GRID_ATTR_REVERSE; 697 } 698 screen_redraw_border_set(w, wp, ctx->pane_lines, cell_type, &gc); 699 700 if (cell_type == CELL_TOPBOTTOM && 701 (c->flags & CLIENT_UTF8) && 702 tty_term_has(tty->term, TTYC_BIDI)) 703 isolates = 1; 704 else 705 isolates = 0; 706 707 if (ctx->statustop) 708 tty_cursor(tty, i, ctx->statuslines + j); 709 else 710 tty_cursor(tty, i, j); 711 if (isolates) 712 tty_puts(tty, END_ISOLATE); 713 714 switch (options_get_number(oo, "pane-border-indicators")) { 715 case PANE_BORDER_ARROWS: 716 case PANE_BORDER_BOTH: 717 arrows = 1; 718 break; 719 } 720 721 if (wp != NULL && arrows) { 722 border = screen_redraw_pane_border(active, x, y, pane_status); 723 if (((i == wp->xoff + 1 && 724 (cell_type == CELL_LEFTRIGHT || 725 (cell_type == CELL_TOPJOIN && 726 border == SCREEN_REDRAW_BORDER_BOTTOM) || 727 (cell_type == CELL_BOTTOMJOIN && 728 border == SCREEN_REDRAW_BORDER_TOP))) || 729 (j == wp->yoff + 1 && 730 (cell_type == CELL_TOPBOTTOM || 731 (cell_type == CELL_LEFTJOIN && 732 border == SCREEN_REDRAW_BORDER_RIGHT) || 733 (cell_type == CELL_RIGHTJOIN && 734 border == SCREEN_REDRAW_BORDER_LEFT)))) && 735 screen_redraw_check_is(x, y, pane_status, active)) { 736 gc.attr |= GRID_ATTR_CHARSET; 737 utf8_set(&gc.data, BORDER_MARKERS[border]); 738 } 739 } 740 741 tty_cell(tty, &gc, &grid_default_cell, NULL); 742 if (isolates) 743 tty_puts(tty, START_ISOLATE); 744 } 745 746 /* Draw the borders. */ 747 static void 748 screen_redraw_draw_borders(struct screen_redraw_ctx *ctx) 749 { 750 struct client *c = ctx->c; 751 struct session *s = c->session; 752 struct window *w = s->curw->window; 753 struct window_pane *wp; 754 u_int i, j; 755 756 log_debug("%s: %s @%u", __func__, c->name, w->id); 757 758 TAILQ_FOREACH(wp, &w->panes, entry) 759 wp->border_gc_set = 0; 760 761 for (j = 0; j < c->tty.sy - ctx->statuslines; j++) { 762 for (i = 0; i < c->tty.sx; i++) 763 screen_redraw_draw_borders_cell(ctx, i, j); 764 } 765 } 766 767 /* Draw the panes. */ 768 static void 769 screen_redraw_draw_panes(struct screen_redraw_ctx *ctx) 770 { 771 struct client *c = ctx->c; 772 struct window *w = c->session->curw->window; 773 struct window_pane *wp; 774 775 log_debug("%s: %s @%u", __func__, c->name, w->id); 776 777 TAILQ_FOREACH(wp, &w->panes, entry) { 778 if (window_pane_visible(wp)) 779 screen_redraw_draw_pane(ctx, wp); 780 } 781 } 782 783 /* Draw the status line. */ 784 static void 785 screen_redraw_draw_status(struct screen_redraw_ctx *ctx) 786 { 787 struct client *c = ctx->c; 788 struct window *w = c->session->curw->window; 789 struct tty *tty = &c->tty; 790 struct screen *s = c->status.active; 791 u_int i, y; 792 793 log_debug("%s: %s @%u", __func__, c->name, w->id); 794 795 if (ctx->statustop) 796 y = 0; 797 else 798 y = c->tty.sy - ctx->statuslines; 799 for (i = 0; i < ctx->statuslines; i++) { 800 tty_draw_line(tty, s, 0, i, UINT_MAX, 0, y + i, 801 &grid_default_cell, NULL); 802 } 803 } 804 805 /* Draw one pane. */ 806 static void 807 screen_redraw_draw_pane(struct screen_redraw_ctx *ctx, struct window_pane *wp) 808 { 809 struct client *c = ctx->c; 810 struct window *w = c->session->curw->window; 811 struct tty *tty = &c->tty; 812 struct screen *s = wp->screen; 813 struct colour_palette *palette = &wp->palette; 814 struct grid_cell defaults; 815 u_int i, j, top, x, y, width; 816 817 log_debug("%s: %s @%u %%%u", __func__, c->name, w->id, wp->id); 818 819 if (wp->xoff + wp->sx <= ctx->ox || wp->xoff >= ctx->ox + ctx->sx) 820 return; 821 if (ctx->statustop) 822 top = ctx->statuslines; 823 else 824 top = 0; 825 for (j = 0; j < wp->sy; j++) { 826 if (wp->yoff + j < ctx->oy || wp->yoff + j >= ctx->oy + ctx->sy) 827 continue; 828 y = top + wp->yoff + j - ctx->oy; 829 830 if (wp->xoff >= ctx->ox && 831 wp->xoff + wp->sx <= ctx->ox + ctx->sx) { 832 /* All visible. */ 833 i = 0; 834 x = wp->xoff - ctx->ox; 835 width = wp->sx; 836 } else if (wp->xoff < ctx->ox && 837 wp->xoff + wp->sx > ctx->ox + ctx->sx) { 838 /* Both left and right not visible. */ 839 i = ctx->ox; 840 x = 0; 841 width = ctx->sx; 842 } else if (wp->xoff < ctx->ox) { 843 /* Left not visible. */ 844 i = ctx->ox - wp->xoff; 845 x = 0; 846 width = wp->sx - i; 847 } else { 848 /* Right not visible. */ 849 i = 0; 850 x = wp->xoff - ctx->ox; 851 width = ctx->sx - x; 852 } 853 log_debug("%s: %s %%%u line %u,%u at %u,%u, width %u", 854 __func__, c->name, wp->id, i, j, x, y, width); 855 856 tty_default_colours(&defaults, wp); 857 tty_draw_line(tty, s, i, j, width, x, y, &defaults, palette); 858 } 859 } 860
Indexes created Sun May 03 00:22:47 UTC 2026