1 /* $OpenBSD: screen-redraw.c,v 1.55 2018/10/18 08:38:01 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER 15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/types.h> 20 21 #include <stdlib.h> 22 #include <string.h> 23 24 #include "tmux.h" 25 26 struct screen_redraw_ctx { 27 struct client *c; 28 29 u_int lines; 30 int top; 31 32 int pane_status; 33 34 u_int sx; 35 u_int sy; 36 u_int ox; 37 u_int oy; 38 }; 39 40 static void screen_redraw_draw_borders(struct screen_redraw_ctx *); 41 static void screen_redraw_draw_panes(struct screen_redraw_ctx *); 42 static void screen_redraw_draw_status(struct screen_redraw_ctx *); 43 static void screen_redraw_draw_pane(struct screen_redraw_ctx *, 44 struct window_pane *); 45 static void screen_redraw_draw_number(struct screen_redraw_ctx *, 46 struct window_pane *); 47 48 #define CELL_INSIDE 0 49 #define CELL_LEFTRIGHT 1 50 #define CELL_TOPBOTTOM 2 51 #define CELL_TOPLEFT 3 52 #define CELL_TOPRIGHT 4 53 #define CELL_BOTTOMLEFT 5 54 #define CELL_BOTTOMRIGHT 6 55 #define CELL_TOPJOIN 7 56 #define CELL_BOTTOMJOIN 8 57 #define CELL_LEFTJOIN 9 58 #define CELL_RIGHTJOIN 10 59 #define CELL_JOIN 11 60 #define CELL_OUTSIDE 12 61 62 #define CELL_BORDERS " xqlkmjwvtun~" 63 64 #define CELL_STATUS_OFF 0 65 #define CELL_STATUS_TOP 1 66 #define CELL_STATUS_BOTTOM 2 67 68 /* Check if cell is on the border of a particular pane. */ 69 static int 70 screen_redraw_cell_border1(struct window_pane *wp, u_int px, u_int py) 71 { 72 /* Inside pane. */ 73 if (px >= wp->xoff && px < wp->xoff + wp->sx && 74 py >= wp->yoff && py < wp->yoff + wp->sy) 75 return (0); 76 77 /* Left/right borders. */ 78 if ((wp->yoff == 0 || py >= wp->yoff - 1) && py <= wp->yoff + wp->sy) { 79 if (wp->xoff != 0 && px == wp->xoff - 1) 80 return (1); 81 if (px == wp->xoff + wp->sx) 82 return (2); 83 } 84 85 /* Top/bottom borders. */ 86 if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= wp->xoff + wp->sx) { 87 if (wp->yoff != 0 && py == wp->yoff - 1) 88 return (3); 89 if (py == wp->yoff + wp->sy) 90 return (4); 91 } 92 93 /* Outside pane. */ 94 return (-1); 95 } 96 97 /* Check if a cell is on the pane border. */ 98 static int 99 screen_redraw_cell_border(struct client *c, u_int px, u_int py) 100 { 101 struct window *w = c->session->curw->window; 102 struct window_pane *wp; 103 int retval; 104 105 /* Check all the panes. */ 106 TAILQ_FOREACH(wp, &w->panes, entry) { 107 if (!window_pane_visible(wp)) 108 continue; 109 if ((retval = screen_redraw_cell_border1(wp, px, py)) != -1) 110 return (!!retval); 111 } 112 113 return (0); 114 } 115 116 /* Check if cell inside a pane. */ 117 static int 118 screen_redraw_check_cell(struct client *c, u_int px, u_int py, int pane_status, 119 struct window_pane **wpp) 120 { 121 struct window *w = c->session->curw->window; 122 struct window_pane *wp; 123 int borders; 124 u_int right, line; 125 126 *wpp = NULL; 127 128 if (px > w->sx || py > w->sy) 129 return (CELL_OUTSIDE); 130 131 if (pane_status != CELL_STATUS_OFF) { 132 TAILQ_FOREACH(wp, &w->panes, entry) { 133 if (!window_pane_visible(wp)) 134 continue; 135 136 if (pane_status == CELL_STATUS_TOP) 137 line = wp->yoff - 1; 138 else 139 line = wp->yoff + wp->sy; 140 right = wp->xoff + 2 + wp->status_size - 1; 141 142 if (py == line && px >= wp->xoff + 2 && px <= right) 143 return (CELL_INSIDE); 144 } 145 } 146 147 TAILQ_FOREACH(wp, &w->panes, entry) { 148 if (!window_pane_visible(wp)) 149 continue; 150 *wpp = wp; 151 152 /* If outside the pane and its border, skip it. */ 153 if ((wp->xoff != 0 && px < wp->xoff - 1) || 154 px > wp->xoff + wp->sx || 155 (wp->yoff != 0 && py < wp->yoff - 1) || 156 py > wp->yoff + wp->sy) 157 continue; 158 159 /* If definitely inside, return so. */ 160 if (!screen_redraw_cell_border(c, px, py)) 161 return (CELL_INSIDE); 162 163 /* 164 * Construct a bitmask of whether the cells to the left (bit 165 * 4), right, top, and bottom (bit 1) of this cell are borders. 166 */ 167 borders = 0; 168 if (px == 0 || screen_redraw_cell_border(c, px - 1, py)) 169 borders |= 8; 170 if (px <= w->sx && screen_redraw_cell_border(c, px + 1, py)) 171 borders |= 4; 172 if (pane_status == CELL_STATUS_TOP) { 173 if (py != 0 && screen_redraw_cell_border(c, px, py - 1)) 174 borders |= 2; 175 } else { 176 if (py == 0 || screen_redraw_cell_border(c, px, py - 1)) 177 borders |= 2; 178 } 179 if (py <= w->sy && screen_redraw_cell_border(c, px, py + 1)) 180 borders |= 1; 181 182 /* 183 * Figure out what kind of border this cell is. Only one bit 184 * set doesn't make sense (can't have a border cell with no 185 * others connected). 186 */ 187 switch (borders) { 188 case 15: /* 1111, left right top bottom */ 189 return (CELL_JOIN); 190 case 14: /* 1110, left right top */ 191 return (CELL_BOTTOMJOIN); 192 case 13: /* 1101, left right bottom */ 193 return (CELL_TOPJOIN); 194 case 12: /* 1100, left right */ 195 return (CELL_TOPBOTTOM); 196 case 11: /* 1011, left top bottom */ 197 return (CELL_RIGHTJOIN); 198 case 10: /* 1010, left top */ 199 return (CELL_BOTTOMRIGHT); 200 case 9: /* 1001, left bottom */ 201 return (CELL_TOPRIGHT); 202 case 7: /* 0111, right top bottom */ 203 return (CELL_LEFTJOIN); 204 case 6: /* 0110, right top */ 205 return (CELL_BOTTOMLEFT); 206 case 5: /* 0101, right bottom */ 207 return (CELL_TOPLEFT); 208 case 3: /* 0011, top bottom */ 209 return (CELL_LEFTRIGHT); 210 } 211 } 212 213 return (CELL_OUTSIDE); 214 } 215 216 /* Check if the border of a particular pane. */ 217 static int 218 screen_redraw_check_is(u_int px, u_int py, int type, int pane_status, 219 struct window *w, struct window_pane *wantwp, struct window_pane *wp) 220 { 221 int border; 222 223 /* Is this off the active pane border? */ 224 border = screen_redraw_cell_border1(wantwp, px, py); 225 if (border == 0 || border == -1) 226 return (0); 227 if (pane_status == CELL_STATUS_TOP && border == 4) 228 return (0); 229 if (pane_status == CELL_STATUS_BOTTOM && border == 3) 230 return (0); 231 232 /* If there are more than two panes, that's enough. */ 233 if (window_count_panes(w) != 2) 234 return (1); 235 236 /* Else if the cell is not a border cell, forget it. */ 237 if (wp == NULL || (type == CELL_OUTSIDE || type == CELL_INSIDE)) 238 return (1); 239 240 /* With status lines mark the entire line. */ 241 if (pane_status != CELL_STATUS_OFF) 242 return (1); 243 244 /* Check if the pane covers the whole width. */ 245 if (wp->xoff == 0 && wp->sx == w->sx) { 246 /* This can either be the top pane or the bottom pane. */ 247 if (wp->yoff == 0) { /* top pane */ 248 if (wp == wantwp) 249 return (px <= wp->sx / 2); 250 return (px > wp->sx / 2); 251 } 252 return (0); 253 } 254 255 /* Check if the pane covers the whole height. */ 256 if (wp->yoff == 0 && wp->sy == w->sy) { 257 /* This can either be the left pane or the right pane. */ 258 if (wp->xoff == 0) { /* left pane */ 259 if (wp == wantwp) 260 return (py <= wp->sy / 2); 261 return (py > wp->sy / 2); 262 } 263 return (0); 264 } 265 266 return (1); 267 } 268 269 /* Update pane status. */ 270 static int 271 screen_redraw_make_pane_status(struct client *c, struct window *w, 272 struct window_pane *wp) 273 { 274 struct grid_cell gc; 275 const char *fmt; 276 struct format_tree *ft; 277 char *out; 278 size_t outlen; 279 struct screen_write_ctx ctx; 280 struct screen old; 281 282 if (wp == w->active) 283 style_apply(&gc, w->options, "pane-active-border-style"); 284 else 285 style_apply(&gc, w->options, "pane-border-style"); 286 287 fmt = options_get_string(w->options, "pane-border-format"); 288 289 ft = format_create(c, NULL, FORMAT_PANE|wp->id, 0); 290 format_defaults(ft, c, NULL, NULL, wp); 291 292 memcpy(&old, &wp->status_screen, sizeof old); 293 screen_init(&wp->status_screen, wp->sx, 1, 0); 294 wp->status_screen.mode = 0; 295 296 out = format_expand(ft, fmt); 297 outlen = screen_write_cstrlen("%s", out); 298 if (outlen > wp->sx - 4) 299 outlen = wp->sx - 4; 300 screen_resize(&wp->status_screen, outlen, 1, 0); 301 302 screen_write_start(&ctx, NULL, &wp->status_screen); 303 screen_write_cursormove(&ctx, 0, 0); 304 screen_write_clearline(&ctx, 8); 305 screen_write_cnputs(&ctx, outlen, &gc, "%s", out); 306 screen_write_stop(&ctx); 307 308 free(out); 309 format_free(ft); 310 311 wp->status_size = outlen; 312 313 if (grid_compare(wp->status_screen.grid, old.grid) == 0) { 314 screen_free(&old); 315 return (0); 316 } 317 screen_free(&old); 318 return (1); 319 } 320 321 /* Draw pane status. */ 322 static void 323 screen_redraw_draw_pane_status(struct screen_redraw_ctx *ctx) 324 { 325 struct client *c = ctx->c; 326 struct window *w = c->session->curw->window; 327 struct tty *tty = &c->tty; 328 struct window_pane *wp; 329 struct screen *s; 330 u_int i, x, width, xoff, yoff, size; 331 332 log_debug("%s: %s @%u", __func__, c->name, w->id); 333 334 TAILQ_FOREACH(wp, &w->panes, entry) { 335 if (!window_pane_visible(wp)) 336 continue; 337 s = &wp->status_screen; 338 339 size = wp->status_size; 340 if (ctx->pane_status == CELL_STATUS_TOP) 341 yoff = wp->yoff - 1; 342 else 343 yoff = wp->yoff + wp->sy; 344 xoff = wp->xoff + 2; 345 346 if (xoff + size <= ctx->ox || 347 xoff >= ctx->ox + ctx->sx || 348 yoff < ctx->oy || 349 yoff >= ctx->oy + ctx->sy) 350 continue; 351 352 if (xoff >= ctx->ox && xoff + size <= ctx->ox + ctx->sx) { 353 /* All visible. */ 354 i = 0; 355 x = xoff - ctx->ox; 356 width = size; 357 } else if (xoff < ctx->ox && xoff + size > ctx->ox + ctx->sx) { 358 /* Both left and right not visible. */ 359 i = ctx->ox; 360 x = 0; 361 width = ctx->sx; 362 } else if (xoff < ctx->ox) { 363 /* Left not visible. */ 364 i = ctx->ox - xoff; 365 x = 0; 366 width = size - i; 367 } else { 368 /* Right not visible. */ 369 i = 0; 370 x = xoff - ctx->ox; 371 width = size - x; 372 } 373 374 if (ctx->top) 375 yoff += ctx->lines; 376 tty_draw_line(tty, NULL, s, i, 0, width, x, yoff - ctx->oy); 377 } 378 tty_cursor(tty, 0, 0); 379 } 380 381 /* Update status line and change flags if unchanged. */ 382 static int 383 screen_redraw_update(struct client *c, int flags) 384 { 385 struct window *w = c->session->curw->window; 386 struct window_pane *wp; 387 struct options *wo = w->options; 388 int redraw; 389 390 if (c->message_string != NULL) 391 redraw = status_message_redraw(c); 392 else if (c->prompt_string != NULL) 393 redraw = status_prompt_redraw(c); 394 else 395 redraw = status_redraw(c); 396 if (!redraw && (~flags & CLIENT_REDRAWSTATUSALWAYS)) 397 flags &= ~CLIENT_REDRAWSTATUS; 398 399 if (options_get_number(wo, "pane-border-status") != CELL_STATUS_OFF) { 400 redraw = 0; 401 TAILQ_FOREACH(wp, &w->panes, entry) { 402 if (screen_redraw_make_pane_status(c, w, wp)) 403 redraw = 1; 404 } 405 if (redraw) 406 flags |= CLIENT_REDRAWBORDERS; 407 } 408 return (flags); 409 } 410 411 /* Set up redraw context. */ 412 static void 413 screen_redraw_set_context(struct client *c, struct screen_redraw_ctx *ctx) 414 { 415 struct session *s = c->session; 416 struct options *oo = s->options; 417 struct window *w = s->curw->window; 418 struct options *wo = w->options; 419 420 memset(ctx, 0, sizeof *ctx); 421 ctx->c = c; 422 423 ctx->lines = status_line_size(c); 424 if (c->message_string != NULL || c->prompt_string != NULL) 425 ctx->lines = (ctx->lines == 0) ? 1 : ctx->lines; 426 if (ctx->lines != 0 && options_get_number(oo, "status-position") == 0) 427 ctx->top = 1; 428 ctx->pane_status = options_get_number(wo, "pane-border-status"); 429 430 tty_window_offset(&c->tty, &ctx->ox, &ctx->oy, &ctx->sx, &ctx->sy); 431 432 log_debug("%s: %s @%u ox=%u oy=%u sx=%u sy=%u %u/%d", __func__, c->name, 433 w->id, ctx->ox, ctx->oy, ctx->sx, ctx->sy, ctx->lines, ctx->top); 434 } 435 436 /* Redraw entire screen. */ 437 void 438 screen_redraw_screen(struct client *c) 439 { 440 struct screen_redraw_ctx ctx; 441 int flags; 442 443 if (c->flags & CLIENT_SUSPENDED) 444 return; 445 446 flags = screen_redraw_update(c, c->flags); 447 screen_redraw_set_context(c, &ctx); 448 449 if (flags & (CLIENT_REDRAWWINDOW|CLIENT_REDRAWBORDERS)) { 450 if (ctx.pane_status != CELL_STATUS_OFF) 451 screen_redraw_draw_pane_status(&ctx); 452 screen_redraw_draw_borders(&ctx); 453 } 454 if (flags & CLIENT_REDRAWWINDOW) 455 screen_redraw_draw_panes(&ctx); 456 if (ctx.lines != 0 && 457 (flags & (CLIENT_REDRAWSTATUS|CLIENT_REDRAWSTATUSALWAYS))) 458 screen_redraw_draw_status(&ctx); 459 tty_reset(&c->tty); 460 } 461 462 /* Redraw a single pane. */ 463 void 464 screen_redraw_pane(struct client *c, struct window_pane *wp) 465 { 466 struct screen_redraw_ctx ctx; 467 468 if (!window_pane_visible(wp)) 469 return; 470 471 screen_redraw_set_context(c, &ctx); 472 473 screen_redraw_draw_pane(&ctx, wp); 474 tty_reset(&c->tty); 475 } 476 477 /* Draw a border cell. */ 478 static void 479 screen_redraw_draw_borders_cell(struct screen_redraw_ctx *ctx, u_int i, u_int j, 480 struct grid_cell *m_active_gc, struct grid_cell *active_gc, 481 struct grid_cell *m_other_gc, struct grid_cell *other_gc) 482 { 483 struct client *c = ctx->c; 484 struct session *s = c->session; 485 struct window *w = s->curw->window; 486 struct tty *tty = &c->tty; 487 struct window_pane *wp; 488 struct window_pane *active = w->active; 489 struct window_pane *marked = marked_pane.wp; 490 u_int type, x = ctx->ox + i, y = ctx->oy + j; 491 int flag, pane_status = ctx->pane_status; 492 493 type = screen_redraw_check_cell(c, x, y, pane_status, &wp); 494 if (type == CELL_INSIDE) 495 return; 496 flag = screen_redraw_check_is(x, y, type, pane_status, w, active, wp); 497 498 if (server_is_marked(s, s->curw, marked_pane.wp) && 499 screen_redraw_check_is(x, y, type, pane_status, w, marked, wp)) { 500 if (flag) 501 tty_attributes(tty, m_active_gc, NULL); 502 else 503 tty_attributes(tty, m_other_gc, NULL); 504 } else if (flag) 505 tty_attributes(tty, active_gc, NULL); 506 else 507 tty_attributes(tty, other_gc, NULL); 508 if (ctx->top) 509 tty_cursor(tty, i, ctx->lines + j); 510 else 511 tty_cursor(tty, i, j); 512 tty_putc(tty, CELL_BORDERS[type]); 513 } 514 515 /* Draw the borders. */ 516 static void 517 screen_redraw_draw_borders(struct screen_redraw_ctx *ctx) 518 { 519 struct client *c = ctx->c; 520 struct session *s = c->session; 521 struct window *w = s->curw->window; 522 struct tty *tty = &c->tty; 523 struct options *oo = w->options; 524 struct grid_cell m_active_gc, active_gc, m_other_gc, other_gc; 525 u_int i, j; 526 527 log_debug("%s: %s @%u", __func__, c->name, w->id); 528 529 style_apply(&other_gc, oo, "pane-border-style"); 530 style_apply(&active_gc, oo, "pane-active-border-style"); 531 active_gc.attr = other_gc.attr = GRID_ATTR_CHARSET; 532 533 memcpy(&m_other_gc, &other_gc, sizeof m_other_gc); 534 m_other_gc.attr ^= GRID_ATTR_REVERSE; 535 memcpy(&m_active_gc, &active_gc, sizeof m_active_gc); 536 m_active_gc.attr ^= GRID_ATTR_REVERSE; 537 538 for (j = 0; j < tty->sy - ctx->lines; j++) { 539 for (i = 0; i < tty->sx; i++) { 540 screen_redraw_draw_borders_cell(ctx, i, j, 541 &m_active_gc, &active_gc, &m_other_gc, &other_gc); 542 } 543 } 544 } 545 546 /* Draw the panes. */ 547 static void 548 screen_redraw_draw_panes(struct screen_redraw_ctx *ctx) 549 { 550 struct client *c = ctx->c; 551 struct window *w = c->session->curw->window; 552 struct window_pane *wp; 553 554 log_debug("%s: %s @%u", __func__, c->name, w->id); 555 556 TAILQ_FOREACH(wp, &w->panes, entry) { 557 if (!window_pane_visible(wp)) 558 continue; 559 screen_redraw_draw_pane(ctx, wp); 560 if (c->flags & CLIENT_IDENTIFY) 561 screen_redraw_draw_number(ctx, wp); 562 } 563 } 564 565 /* Draw the status line. */ 566 static void 567 screen_redraw_draw_status(struct screen_redraw_ctx *ctx) 568 { 569 struct client *c = ctx->c; 570 struct window *w = c->session->curw->window; 571 struct tty *tty = &c->tty; 572 struct screen *s = &c->status.status; 573 u_int i, y; 574 575 log_debug("%s: %s @%u", __func__, c->name, w->id); 576 577 if (ctx->top) 578 y = 0; 579 else 580 y = c->tty.sy - ctx->lines; 581 for (i = 0; i < ctx->lines; i++) 582 tty_draw_line(tty, NULL, s, 0, i, UINT_MAX, 0, y + i); 583 } 584 585 /* Draw one pane. */ 586 static void 587 screen_redraw_draw_pane(struct screen_redraw_ctx *ctx, struct window_pane *wp) 588 { 589 struct client *c = ctx->c; 590 struct window *w = c->session->curw->window; 591 struct tty *tty = &c->tty; 592 struct screen *s; 593 u_int i, j, top, x, y, width; 594 595 log_debug("%s: %s @%u %%%u", __func__, c->name, w->id, wp->id); 596 597 if (wp->xoff + wp->sx <= ctx->ox || wp->xoff >= ctx->ox + ctx->sx) 598 return; 599 if (ctx->top) 600 top = ctx->lines; 601 else 602 top = 0; 603 604 s = wp->screen; 605 for (j = 0; j < wp->sy; j++) { 606 if (wp->yoff + j < ctx->oy || wp->yoff + j >= ctx->oy + ctx->sy) 607 continue; 608 y = top + wp->yoff + j - ctx->oy; 609 610 if (wp->xoff >= ctx->ox && 611 wp->xoff + wp->sx <= ctx->ox + ctx->sx) { 612 /* All visible. */ 613 i = 0; 614 x = wp->xoff - ctx->ox; 615 width = wp->sx; 616 } else if (wp->xoff < ctx->ox && 617 wp->xoff + wp->sx > ctx->ox + ctx->sx) { 618 /* Both left and right not visible. */ 619 i = ctx->ox; 620 x = 0; 621 width = ctx->sx; 622 } else if (wp->xoff < ctx->ox) { 623 /* Left not visible. */ 624 i = ctx->ox - wp->xoff; 625 x = 0; 626 width = wp->sx - i; 627 } else { 628 /* Right not visible. */ 629 i = 0; 630 x = wp->xoff - ctx->ox; 631 width = ctx->sx - x; 632 } 633 log_debug("%s: %s %%%u line %u,%u at %u,%u, width %u", 634 __func__, c->name, wp->id, i, j, x, y, width); 635 636 tty_draw_line(tty, wp, s, i, j, width, x, y); 637 } 638 } 639 640 /* Draw number on a pane. */ 641 static void 642 screen_redraw_draw_number(struct screen_redraw_ctx *ctx, struct window_pane *wp) 643 { 644 struct client *c = ctx->c; 645 struct tty *tty = &c->tty; 646 struct session *s = c->session; 647 struct options *oo = s->options; 648 struct window *w = wp->window; 649 struct grid_cell gc; 650 u_int idx, px, py, i, j, xoff, yoff, sx, sy; 651 int colour, active_colour; 652 char buf[16], *ptr; 653 size_t len; 654 655 if (wp->xoff + wp->sx <= ctx->ox || 656 wp->xoff >= ctx->ox + ctx->sx || 657 wp->yoff + wp->sy <= ctx->oy || 658 wp->yoff >= ctx->oy + ctx->sy) 659 return; 660 661 if (wp->xoff >= ctx->ox && wp->xoff + wp->sx <= ctx->ox + ctx->sx) { 662 /* All visible. */ 663 xoff = wp->xoff - ctx->ox; 664 sx = wp->sx; 665 } else if (wp->xoff < ctx->ox && 666 wp->xoff + wp->sx > ctx->ox + ctx->sx) { 667 /* Both left and right not visible. */ 668 xoff = 0; 669 sx = ctx->sx; 670 } else if (wp->xoff < ctx->ox) { 671 /* Left not visible. */ 672 xoff = 0; 673 sx = wp->sx - (ctx->ox - wp->xoff); 674 } else { 675 /* Right not visible. */ 676 xoff = wp->xoff - ctx->ox; 677 sx = wp->sx - xoff; 678 } 679 if (wp->yoff >= ctx->oy && wp->yoff + wp->sy <= ctx->oy + ctx->sy) { 680 /* All visible. */ 681 yoff = wp->yoff - ctx->oy; 682 sy = wp->sy; 683 } else if (wp->yoff < ctx->oy && 684 wp->yoff + wp->sy > ctx->oy + ctx->sy) { 685 /* Both top and bottom not visible. */ 686 yoff = 0; 687 sy = ctx->sy; 688 } else if (wp->yoff < ctx->oy) { 689 /* Top not visible. */ 690 yoff = 0; 691 sy = wp->sy - (ctx->oy - wp->yoff); 692 } else { 693 /* Bottom not visible. */ 694 yoff = wp->yoff - ctx->oy; 695 sy = wp->sy - yoff; 696 } 697 698 if (ctx->top) 699 yoff += ctx->lines; 700 px = sx / 2; 701 py = sy / 2; 702 703 if (window_pane_index(wp, &idx) != 0) 704 fatalx("index not found"); 705 len = xsnprintf(buf, sizeof buf, "%u", idx); 706 707 if (sx < len) 708 return; 709 colour = options_get_number(oo, "display-panes-colour"); 710 active_colour = options_get_number(oo, "display-panes-active-colour"); 711 712 if (sx < len * 6 || sy < 5) { 713 tty_cursor(tty, xoff + px - len / 2, yoff + py); 714 goto draw_text; 715 } 716 717 px -= len * 3; 718 py -= 2; 719 720 memcpy(&gc, &grid_default_cell, sizeof gc); 721 if (w->active == wp) 722 gc.bg = active_colour; 723 else 724 gc.bg = colour; 725 gc.flags |= GRID_FLAG_NOPALETTE; 726 727 tty_attributes(tty, &gc, wp); 728 for (ptr = buf; *ptr != '\0'; ptr++) { 729 if (*ptr < '0' || *ptr > '9') 730 continue; 731 idx = *ptr - '0'; 732 733 for (j = 0; j < 5; j++) { 734 for (i = px; i < px + 5; i++) { 735 tty_cursor(tty, xoff + i, yoff + py + j); 736 if (window_clock_table[idx][j][i - px]) 737 tty_putc(tty, ' '); 738 } 739 } 740 px += 6; 741 } 742 743 len = xsnprintf(buf, sizeof buf, "%ux%u", wp->sx, wp->sy); 744 if (sx < len || sy < 6) 745 return; 746 tty_cursor(tty, xoff + sx - len, yoff); 747 748 draw_text: 749 memcpy(&gc, &grid_default_cell, sizeof gc); 750 if (w->active == wp) 751 gc.fg = active_colour; 752 else 753 gc.fg = colour; 754 gc.flags |= GRID_FLAG_NOPALETTE; 755 756 tty_attributes(tty, &gc, wp); 757 tty_puts(tty, buf); 758 759 tty_cursor(tty, 0, 0); 760 } 761