?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Make send-keys without any arguments send the key it is bound to (if
[tmux-openbsd.git] / screen-redraw.c
blob82e390cda2c6a7f08f6be8066938aa9d5b0142a5
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
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 CELL_INSIDE 0
35 #define CELL_TOPBOTTOM 1
36 #define CELL_LEFTRIGHT 2
37 #define CELL_TOPLEFT 3
38 #define CELL_TOPRIGHT 4
39 #define CELL_BOTTOMLEFT 5
40 #define CELL_BOTTOMRIGHT 6
41 #define CELL_TOPJOIN 7
42 #define CELL_BOTTOMJOIN 8
43 #define CELL_LEFTJOIN 9
44 #define CELL_RIGHTJOIN 10
45 #define CELL_JOIN 11
46 #define CELL_OUTSIDE 12
47
48 #define CELL_BORDERS " xqlkmjwvtun~"
49
50 #define START_ISOLATE "\342\201\246"
51 #define END_ISOLATE "\342\201\251"
52
53 static const struct utf8_data screen_redraw_double_borders[] = {
54 { "", 0, 0, 0 },
55 { "\342\225\221", 0, 3, 1 }, /* U+2551 */
56 { "\342\225\220", 0, 3, 1 }, /* U+2550 */
57 { "\342\225\224", 0, 3, 1 }, /* U+2554 */
58 { "\342\225\227", 0, 3, 1 }, /* U+2557 */
59 { "\342\225\232", 0, 3, 1 }, /* U+255A */
60 { "\342\225\235", 0, 3, 1 }, /* U+255D */
61 { "\342\225\246", 0, 3, 1 }, /* U+2566 */
62 { "\342\225\251", 0, 3, 1 }, /* U+2569 */
63 { "\342\225\240", 0, 3, 1 }, /* U+2560 */
64 { "\342\225\243", 0, 3, 1 }, /* U+2563 */
65 { "\342\225\254", 0, 3, 1 }, /* U+256C */
66 { "\302\267", 0, 2, 1 } /* U+00B7 */
67 };
68
69 static const struct utf8_data screen_redraw_heavy_borders[] = {
70 { "", 0, 0, 0 },
71 { "\342\224\203", 0, 3, 1 }, /* U+2503 */
72 { "\342\224\201", 0, 3, 1 }, /* U+2501 */
73 { "\342\224\223", 0, 3, 1 }, /* U+2513 */
74 { "\342\224\217", 0, 3, 1 }, /* U+250F */
75 { "\342\224\227", 0, 3, 1 }, /* U+2517 */
76 { "\342\224\233", 0, 3, 1 }, /* U+251B */
77 { "\342\224\263", 0, 3, 1 }, /* U+2533 */
78 { "\342\224\273", 0, 3, 1 }, /* U+253B */
79 { "\342\224\243", 0, 3, 1 }, /* U+2523 */
80 { "\342\224\253", 0, 3, 1 }, /* U+252B */
81 { "\342\225\213", 0, 3, 1 }, /* U+254B */
82 { "\302\267", 0, 2, 1 } /* U+00B7 */
83 };
84
85 enum screen_redraw_border_type {
86 SCREEN_REDRAW_OUTSIDE,
87 SCREEN_REDRAW_INSIDE,
88 SCREEN_REDRAW_BORDER
89 };
90
91 /* Get cell border character. */
92 static void
93 screen_redraw_border_set(struct window_pane *wp, int pane_lines, int cell_type,
94 struct grid_cell *gc)
95 {
96 u_int idx;
97
98 switch (pane_lines) {
99 case PANE_LINES_NUMBER:
100 if (cell_type == CELL_OUTSIDE) {
101 gc->attr |= GRID_ATTR_CHARSET;
102 utf8_set(&gc->data, CELL_BORDERS[CELL_OUTSIDE]);
103 break;
104 }
105 gc->attr &= ~GRID_ATTR_CHARSET;
106 if (wp != NULL && window_pane_index(wp, &idx) == 0)
107 utf8_set(&gc->data, '0' + (idx % 10));
108 else
109 utf8_set(&gc->data, '*');
110 break;
111 case PANE_LINES_DOUBLE:
112 gc->attr &= ~GRID_ATTR_CHARSET;
113 utf8_copy(&gc->data, &screen_redraw_double_borders[cell_type]);
114 break;
115 case PANE_LINES_HEAVY:
116 gc->attr &= ~GRID_ATTR_CHARSET;
117 utf8_copy(&gc->data, &screen_redraw_heavy_borders[cell_type]);
118 break;
119 case PANE_LINES_SIMPLE:
120 gc->attr &= ~GRID_ATTR_CHARSET;
121 utf8_set(&gc->data, " |-+++++++++."[cell_type]);
122 break;
123 default:
124 gc->attr |= GRID_ATTR_CHARSET;
125 utf8_set(&gc->data, CELL_BORDERS[cell_type]);
126 break;
127 }
128 }
129
130 /* Return if window has only two panes. */
131 static int
132 screen_redraw_two_panes(struct window *w, int direction)
133 {
134 struct window_pane *wp;
135
136 wp = TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry);
137 if (wp == NULL)
138 return (0); /* one pane */
139 if (TAILQ_NEXT(wp, entry) != NULL)
140 return (0); /* more than two panes */
141 if (direction == 0 && wp->xoff == 0)
142 return (0);
143 if (direction == 1 && wp->yoff == 0)
144 return (0);
145 return (1);
146 }
147
148 /* Check if cell is on the border of a pane. */
149 static enum screen_redraw_border_type
150 screen_redraw_pane_border(struct window_pane *wp, u_int px, u_int py,
151 int pane_status)
152 {
153 u_int ex = wp->xoff + wp->sx, ey = wp->yoff + wp->sy;
154
155 /* Inside pane. */
156 if (px >= wp->xoff && px < ex && py >= wp->yoff && py < ey)
157 return (SCREEN_REDRAW_INSIDE);
158
159 /* Left/right borders. */
160 if (pane_status == PANE_STATUS_OFF) {
161 if (screen_redraw_two_panes(wp->window, 0)) {
162 if (wp->xoff == 0 && px == wp->sx && py <= wp->sy / 2)
163 return (SCREEN_REDRAW_BORDER);
164 if (wp->xoff != 0 &&
165 px == wp->xoff - 1 &&
166 py > wp->sy / 2)
167 return (SCREEN_REDRAW_BORDER);
168 } else {
169 if ((wp->yoff == 0 || py >= wp->yoff - 1) && py <= ey) {
170 if (wp->xoff != 0 && px == wp->xoff - 1)
171 return (SCREEN_REDRAW_BORDER);
172 if (px == ex)
173 return (SCREEN_REDRAW_BORDER);
174 }
175 }
176 } else {
177 if ((wp->yoff == 0 || py >= wp->yoff - 1) && py <= ey) {
178 if (wp->xoff != 0 && px == wp->xoff - 1)
179 return (SCREEN_REDRAW_BORDER);
180 if (px == ex)
181 return (SCREEN_REDRAW_BORDER);
182 }
183 }
184
185 /* Top/bottom borders. */
186 if (pane_status == PANE_STATUS_OFF) {
187 if (screen_redraw_two_panes(wp->window, 1)) {
188 if (wp->yoff == 0 && py == wp->sy && px <= wp->sx / 2)
189 return (SCREEN_REDRAW_BORDER);
190 if (wp->yoff != 0 &&
191 py == wp->yoff - 1 &&
192 px > wp->sx / 2)
193 return (SCREEN_REDRAW_BORDER);
194 } else {
195 if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= ex) {
196 if (wp->yoff != 0 && py == wp->yoff - 1)
197 return (SCREEN_REDRAW_BORDER);
198 if (py == ey)
199 return (SCREEN_REDRAW_BORDER);
200 }
201 }
202 } else if (pane_status == PANE_STATUS_TOP) {
203 if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= ex) {
204 if (wp->yoff != 0 && py == wp->yoff - 1)
205 return (SCREEN_REDRAW_BORDER);
206 }
207 } else {
208 if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= ex) {
209 if (py == ey)
210 return (SCREEN_REDRAW_BORDER);
211 }
212 }
213
214 /* Outside pane. */
215 return (SCREEN_REDRAW_OUTSIDE);
216 }
217
218 /* Check if a cell is on a border. */
219 static int
220 screen_redraw_cell_border(struct client *c, u_int px, u_int py, int pane_status)
221 {
222 struct window *w = c->session->curw->window;
223 struct window_pane *wp;
224
225 /* Outside the window? */
226 if (px > w->sx || py > w->sy)
227 return (0);
228
229 /* On the window border? */
230 if (px == w->sx || py == w->sy)
231 return (1);
232
233 /* Check all the panes. */
234 TAILQ_FOREACH(wp, &w->panes, entry) {
235 if (!window_pane_visible(wp))
236 continue;
237 switch (screen_redraw_pane_border(wp, px, py, pane_status)) {
238 case SCREEN_REDRAW_INSIDE:
239 return (0);
240 case SCREEN_REDRAW_BORDER:
241 return (1);
242 case SCREEN_REDRAW_OUTSIDE:
243 break;
244 }
245 }
246
247 return (0);
248 }
249
250 /* Work out type of border cell from surrounding cells. */
251 static int
252 screen_redraw_type_of_cell(struct client *c, u_int px, u_int py,
253 int pane_status)
254 {
255 struct window *w = c->session->curw->window;
256 u_int sx = w->sx, sy = w->sy;
257 int borders = 0;
258
259 /* Is this outside the window? */
260 if (px > sx || py > sy)
261 return (CELL_OUTSIDE);
262
263 /*
264 * Construct a bitmask of whether the cells to the left (bit 4), right,
265 * top, and bottom (bit 1) of this cell are borders.
266 */
267 if (px == 0 || screen_redraw_cell_border(c, px - 1, py, pane_status))
268 borders |= 8;
269 if (px <= sx && screen_redraw_cell_border(c, px + 1, py, pane_status))
270 borders |= 4;
271 if (pane_status == PANE_STATUS_TOP) {
272 if (py != 0 &&
273 screen_redraw_cell_border(c, px, py - 1, pane_status))
274 borders |= 2;
275 if (screen_redraw_cell_border(c, px, py + 1, pane_status))
276 borders |= 1;
277 } else if (pane_status == PANE_STATUS_BOTTOM) {
278 if (py == 0 ||
279 screen_redraw_cell_border(c, px, py - 1, pane_status))
280 borders |= 2;
281 if (py != sy - 1 &&
282 screen_redraw_cell_border(c, px, py + 1, pane_status))
283 borders |= 1;
284 } else {
285 if (py == 0 ||
286 screen_redraw_cell_border(c, px, py - 1, pane_status))
287 borders |= 2;
288 if (screen_redraw_cell_border(c, px, py + 1, pane_status))
289 borders |= 1;
290 }
291
292 /*
293 * Figure out what kind of border this cell is. Only one bit set
294 * doesn't make sense (can't have a border cell with no others
295 * connected).
296 */
297 switch (borders) {
298 case 15: /* 1111, left right top bottom */
299 return (CELL_JOIN);
300 case 14: /* 1110, left right top */
301 return (CELL_BOTTOMJOIN);
302 case 13: /* 1101, left right bottom */
303 return (CELL_TOPJOIN);
304 case 12: /* 1100, left right */
305 return (CELL_LEFTRIGHT);
306 case 11: /* 1011, left top bottom */
307 return (CELL_RIGHTJOIN);
308 case 10: /* 1010, left top */
309 return (CELL_BOTTOMRIGHT);
310 case 9: /* 1001, left bottom */
311 return (CELL_TOPRIGHT);
312 case 7: /* 0111, right top bottom */
313 return (CELL_LEFTJOIN);
314 case 6: /* 0110, right top */
315 return (CELL_BOTTOMLEFT);
316 case 5: /* 0101, right bottom */
317 return (CELL_TOPLEFT);
318 case 3: /* 0011, top bottom */
319 return (CELL_TOPBOTTOM);
320 }
321 return (CELL_OUTSIDE);
322 }
323
324 /* Check if cell inside a pane. */
325 static int
326 screen_redraw_check_cell(struct client *c, u_int px, u_int py, int pane_status,
327 struct window_pane **wpp)
328 {
329 struct window *w = c->session->curw->window;
330 struct window_pane *wp, *active;
331 int border;
332 u_int right, line;
333
334 *wpp = NULL;
335
336 if (px > w->sx || py > w->sy)
337 return (CELL_OUTSIDE);
338 if (px == w->sx || py == w->sy) /* window border */
339 return (screen_redraw_type_of_cell(c, px, py, pane_status));
340
341 if (pane_status != PANE_STATUS_OFF) {
342 active = wp = server_client_get_pane(c);
343 do {
344 if (!window_pane_visible(wp))
345 goto next1;
346
347 if (pane_status == PANE_STATUS_TOP)
348 line = wp->yoff - 1;
349 else
350 line = wp->yoff + wp->sy;
351 right = wp->xoff + 2 + wp->status_size - 1;
352
353 if (py == line && px >= wp->xoff + 2 && px <= right)
354 return (CELL_INSIDE);
355
356 next1:
357 wp = TAILQ_NEXT(wp, entry);
358 if (wp == NULL)
359 wp = TAILQ_FIRST(&w->panes);
360 } while (wp != active);
361 }
362
363 active = wp = server_client_get_pane(c);
364 do {
365 if (!window_pane_visible(wp))
366 goto next2;
367 *wpp = wp;
368
369 /*
370 * If definitely inside, return. If not on border, skip.
371 * Otherwise work out the cell.
372 */
373 border = screen_redraw_pane_border(wp, px, py, pane_status);
374 if (border == SCREEN_REDRAW_INSIDE)
375 return (CELL_INSIDE);
376 if (border == SCREEN_REDRAW_OUTSIDE)
377 goto next2;
378 return (screen_redraw_type_of_cell(c, px, py, pane_status));
379
380 next2:
381 wp = TAILQ_NEXT(wp, entry);
382 if (wp == NULL)
383 wp = TAILQ_FIRST(&w->panes);
384 } while (wp != active);
385
386 return (CELL_OUTSIDE);
387 }
388
389 /* Check if the border of a particular pane. */
390 static int
391 screen_redraw_check_is(u_int px, u_int py, int pane_status,
392 struct window_pane *wp)
393 {
394 enum screen_redraw_border_type border;
395
396 border = screen_redraw_pane_border(wp, px, py, pane_status);
397 if (border == SCREEN_REDRAW_BORDER)
398 return (1);
399 return (0);
400 }
401
402 /* Update pane status. */
403 static int
404 screen_redraw_make_pane_status(struct client *c, struct window_pane *wp,
405 struct screen_redraw_ctx *rctx, int pane_lines)
406 {
407 struct window *w = wp->window;
408 struct grid_cell gc;
409 const char *fmt;
410 struct format_tree *ft;
411 char *expanded;
412 int pane_status = rctx->pane_status;
413 u_int width, i, cell_type, px, py;
414 struct screen_write_ctx ctx;
415 struct screen old;
416
417 ft = format_create(c, NULL, FORMAT_PANE|wp->id, FORMAT_STATUS);
418 format_defaults(ft, c, c->session, c->session->curw, wp);
419
420 if (wp == server_client_get_pane(c))
421 style_apply(&gc, w->options, "pane-active-border-style", ft);
422 else
423 style_apply(&gc, w->options, "pane-border-style", ft);
424 fmt = options_get_string(w->options, "pane-border-format");
425
426 expanded = format_expand_time(ft, fmt);
427 if (wp->sx < 4)
428 wp->status_size = width = 0;
429 else
430 wp->status_size = width = wp->sx - 4;
431
432 memcpy(&old, &wp->status_screen, sizeof old);
433 screen_init(&wp->status_screen, width, 1, 0);
434 wp->status_screen.mode = 0;
435
436 screen_write_start(&ctx, &wp->status_screen);
437
438 for (i = 0; i < width; i++) {
439 px = wp->xoff + 2 + i;
440 if (rctx->pane_status == PANE_STATUS_TOP)
441 py = wp->yoff - 1;
442 else
443 py = wp->yoff + wp->sy;
444 cell_type = screen_redraw_type_of_cell(c, px, py, pane_status);
445 screen_redraw_border_set(wp, pane_lines, cell_type, &gc);
446 screen_write_cell(&ctx, &gc);
447 }
448 gc.attr &= ~GRID_ATTR_CHARSET;
449
450 screen_write_cursormove(&ctx, 0, 0, 0);
451 format_draw(&ctx, &gc, width, expanded, NULL);
452 screen_write_stop(&ctx);
453
454 free(expanded);
455 format_free(ft);
456
457 if (grid_compare(wp->status_screen.grid, old.grid) == 0) {
458 screen_free(&old);
459 return (0);
460 }
461 screen_free(&old);
462 return (1);
463 }
464
465 /* Draw pane status. */
466 static void
467 screen_redraw_draw_pane_status(struct screen_redraw_ctx *ctx)
468 {
469 struct client *c = ctx->c;
470 struct window *w = c->session->curw->window;
471 struct tty *tty = &c->tty;
472 struct window_pane *wp;
473 struct screen *s;
474 u_int i, x, width, xoff, yoff, size;
475
476 log_debug("%s: %s @%u", __func__, c->name, w->id);
477
478 TAILQ_FOREACH(wp, &w->panes, entry) {
479 if (!window_pane_visible(wp))
480 continue;
481 s = &wp->status_screen;
482
483 size = wp->status_size;
484 if (ctx->pane_status == PANE_STATUS_TOP)
485 yoff = wp->yoff - 1;
486 else
487 yoff = wp->yoff + wp->sy;
488 xoff = wp->xoff + 2;
489
490 if (xoff + size <= ctx->ox ||
491 xoff >= ctx->ox + ctx->sx ||
492 yoff < ctx->oy ||
493 yoff >= ctx->oy + ctx->sy)
494 continue;
495
496 if (xoff >= ctx->ox && xoff + size <= ctx->ox + ctx->sx) {
497 /* All visible. */
498 i = 0;
499 x = xoff - ctx->ox;
500 width = size;
501 } else if (xoff < ctx->ox && xoff + size > ctx->ox + ctx->sx) {
502 /* Both left and right not visible. */
503 i = ctx->ox;
504 x = 0;
505 width = ctx->sx;
506 } else if (xoff < ctx->ox) {
507 /* Left not visible. */
508 i = ctx->ox - xoff;
509 x = 0;
510 width = size - i;
511 } else {
512 /* Right not visible. */
513 i = 0;
514 x = xoff - ctx->ox;
515 width = size - x;
516 }
517
518 if (ctx->statustop)
519 yoff += ctx->statuslines;
520 tty_draw_line(tty, s, i, 0, width, x, yoff - ctx->oy,
521 &grid_default_cell, NULL);
522 }
523 tty_cursor(tty, 0, 0);
524 }
525
526 /* Update status line and change flags if unchanged. */
527 static int
528 screen_redraw_update(struct client *c, int flags)
529 {
530 struct window *w = c->session->curw->window;
531 struct window_pane *wp;
532 struct options *wo = w->options;
533 int redraw, lines;
534 struct screen_redraw_ctx ctx;
535
536 if (c->message_string != NULL)
537 redraw = status_message_redraw(c);
538 else if (c->prompt_string != NULL)
539 redraw = status_prompt_redraw(c);
540 else
541 redraw = status_redraw(c);
542 if (!redraw && (~flags & CLIENT_REDRAWSTATUSALWAYS))
543 flags &= ~CLIENT_REDRAWSTATUS;
544
545 if (c->overlay_draw != NULL)
546 flags |= CLIENT_REDRAWOVERLAY;
547
548 if (options_get_number(wo, "pane-border-status") != PANE_STATUS_OFF) {
549 screen_redraw_set_context(c, &ctx);
550 lines = options_get_number(wo, "pane-border-lines");
551 redraw = 0;
552 TAILQ_FOREACH(wp, &w->panes, entry) {
553 if (screen_redraw_make_pane_status(c, wp, &ctx, lines))
554 redraw = 1;
555 }
556 if (redraw)
557 flags |= CLIENT_REDRAWBORDERS;
558 }
559 return (flags);
560 }
561
562 /* Set up redraw context. */
563 static void
564 screen_redraw_set_context(struct client *c, struct screen_redraw_ctx *ctx)
565 {
566 struct session *s = c->session;
567 struct options *oo = s->options;
568 struct window *w = s->curw->window;
569 struct options *wo = w->options;
570 u_int lines;
571
572 memset(ctx, 0, sizeof *ctx);
573 ctx->c = c;
574
575 lines = status_line_size(c);
576 if (c->message_string != NULL || c->prompt_string != NULL)
577 lines = (lines == 0) ? 1 : lines;
578 if (lines != 0 && options_get_number(oo, "status-position") == 0)
579 ctx->statustop = 1;
580 ctx->statuslines = lines;
581
582 ctx->pane_status = options_get_number(wo, "pane-border-status");
583 ctx->pane_lines = options_get_number(wo, "pane-border-lines");
584
585 tty_window_offset(&c->tty, &ctx->ox, &ctx->oy, &ctx->sx, &ctx->sy);
586
587 log_debug("%s: %s @%u ox=%u oy=%u sx=%u sy=%u %u/%d", __func__, c->name,
588 w->id, ctx->ox, ctx->oy, ctx->sx, ctx->sy, ctx->statuslines,
589 ctx->statustop);
590 }
591
592 /* Redraw entire screen. */
593 void
594 screen_redraw_screen(struct client *c)
595 {
596 struct screen_redraw_ctx ctx;
597 int flags;
598
599 if (c->flags & CLIENT_SUSPENDED)
600 return;
601
602 flags = screen_redraw_update(c, c->flags);
603 if ((flags & CLIENT_ALLREDRAWFLAGS) == 0)
604 return;
605
606 screen_redraw_set_context(c, &ctx);
607 tty_sync_start(&c->tty);
608 tty_update_mode(&c->tty, c->tty.mode, NULL);
609
610 if (flags & (CLIENT_REDRAWWINDOW|CLIENT_REDRAWBORDERS)) {
611 log_debug("%s: redrawing borders", c->name);
612 if (ctx.pane_status != PANE_STATUS_OFF)
613 screen_redraw_draw_pane_status(&ctx);
614 screen_redraw_draw_borders(&ctx);
615 }
616 if (flags & CLIENT_REDRAWWINDOW) {
617 log_debug("%s: redrawing panes", c->name);
618 screen_redraw_draw_panes(&ctx);
619 }
620 if (ctx.statuslines != 0 &&
621 (flags & (CLIENT_REDRAWSTATUS|CLIENT_REDRAWSTATUSALWAYS))) {
622 log_debug("%s: redrawing status", c->name);
623 screen_redraw_draw_status(&ctx);
624 }
625 if (c->overlay_draw != NULL && (flags & CLIENT_REDRAWOVERLAY)) {
626 log_debug("%s: redrawing overlay", c->name);
627 c->overlay_draw(c, c->overlay_data, &ctx);
628 }
629
630 tty_reset(&c->tty);
631 }
632
633 /* Redraw a single pane. */
634 void
635 screen_redraw_pane(struct client *c, struct window_pane *wp)
636 {
637 struct screen_redraw_ctx ctx;
638
639 if (!window_pane_visible(wp))
640 return;
641
642 screen_redraw_set_context(c, &ctx);
643 tty_sync_start(&c->tty);
644 tty_update_mode(&c->tty, c->tty.mode, NULL);
645
646 screen_redraw_draw_pane(&ctx, wp);
647
648 tty_reset(&c->tty);
649 }
650
651 /* Get border cell style. */
652 static const struct grid_cell *
653 screen_redraw_draw_borders_style(struct screen_redraw_ctx *ctx, u_int x,
654 u_int y, struct window_pane *wp)
655 {
656 struct client *c = ctx->c;
657 struct session *s = c->session;
658 struct window *w = s->curw->window;
659 struct window_pane *active = server_client_get_pane(c);
660 struct options *oo = w->options;
661 struct format_tree *ft;
662
663 if (wp->border_gc_set)
664 return (&wp->border_gc);
665 wp->border_gc_set = 1;
666
667 ft = format_create_defaults(NULL, c, s, s->curw, wp);
668 if (screen_redraw_check_is(x, y, ctx->pane_status, active))
669 style_apply(&wp->border_gc, oo, "pane-active-border-style", ft);
670 else
671 style_apply(&wp->border_gc, oo, "pane-border-style", ft);
672 format_free(ft);
673
674 return (&wp->border_gc);
675 }
676
677 /* Draw a border cell. */
678 static void
679 screen_redraw_draw_borders_cell(struct screen_redraw_ctx *ctx, u_int i, u_int j)
680 {
681 struct client *c = ctx->c;
682 struct session *s = c->session;
683 struct window *w = s->curw->window;
684 struct options *oo = w->options;
685 struct tty *tty = &c->tty;
686 struct format_tree *ft;
687 struct window_pane *wp;
688 u_int cell_type, x = ctx->ox + i, y = ctx->oy + j;
689 int pane_status = ctx->pane_status, isolates;
690 struct grid_cell gc;
691 const struct grid_cell *tmp;
692
693 if (c->overlay_check != NULL &&
694 !c->overlay_check(c, c->overlay_data, x, y))
695 return;
696
697 cell_type = screen_redraw_check_cell(c, x, y, pane_status, &wp);
698 if (cell_type == CELL_INSIDE)
699 return;
700
701 if (wp == NULL) {
702 if (!ctx->no_pane_gc_set) {
703 ft = format_create_defaults(NULL, c, s, s->curw, NULL);
704 memcpy(&ctx->no_pane_gc, &grid_default_cell, sizeof gc);
705 style_add(&ctx->no_pane_gc, oo, "pane-border-style",
706 ft);
707 format_free(ft);
708 ctx->no_pane_gc_set = 1;
709 }
710 memcpy(&gc, &ctx->no_pane_gc, sizeof gc);
711 } else {
712 tmp = screen_redraw_draw_borders_style(ctx, x, y, wp);
713 if (tmp == NULL)
714 return;
715 memcpy(&gc, tmp, sizeof gc);
716
717 if (server_is_marked(s, s->curw, marked_pane.wp) &&
718 screen_redraw_check_is(x, y, pane_status, marked_pane.wp))
719 gc.attr ^= GRID_ATTR_REVERSE;
720 }
721 screen_redraw_border_set(wp, ctx->pane_lines, cell_type, &gc);
722
723 if (cell_type == CELL_TOPBOTTOM &&
724 (c->flags & CLIENT_UTF8) &&
725 tty_term_has(tty->term, TTYC_BIDI))
726 isolates = 1;
727 else
728 isolates = 0;
729
730 if (ctx->statustop)
731 tty_cursor(tty, i, ctx->statuslines + j);
732 else
733 tty_cursor(tty, i, j);
734 if (isolates)
735 tty_puts(tty, END_ISOLATE);
736 tty_cell(tty, &gc, &grid_default_cell, NULL);
737 if (isolates)
738 tty_puts(tty, START_ISOLATE);
739 }
740
741 /* Draw the borders. */
742 static void
743 screen_redraw_draw_borders(struct screen_redraw_ctx *ctx)
744 {
745 struct client *c = ctx->c;
746 struct session *s = c->session;
747 struct window *w = s->curw->window;
748 struct window_pane *wp;
749 u_int i, j;
750
751 log_debug("%s: %s @%u", __func__, c->name, w->id);
752
753 TAILQ_FOREACH(wp, &w->panes, entry)
754 wp->border_gc_set = 0;
755
756 for (j = 0; j < c->tty.sy - ctx->statuslines; j++) {
757 for (i = 0; i < c->tty.sx; i++)
758 screen_redraw_draw_borders_cell(ctx, i, j);
759 }
760 }
761
762 /* Draw the panes. */
763 static void
764 screen_redraw_draw_panes(struct screen_redraw_ctx *ctx)
765 {
766 struct client *c = ctx->c;
767 struct window *w = c->session->curw->window;
768 struct window_pane *wp;
769
770 log_debug("%s: %s @%u", __func__, c->name, w->id);
771
772 TAILQ_FOREACH(wp, &w->panes, entry) {
773 if (window_pane_visible(wp))
774 screen_redraw_draw_pane(ctx, wp);
775 }
776 }
777
778 /* Draw the status line. */
779 static void
780 screen_redraw_draw_status(struct screen_redraw_ctx *ctx)
781 {
782 struct client *c = ctx->c;
783 struct window *w = c->session->curw->window;
784 struct tty *tty = &c->tty;
785 struct screen *s = c->status.active;
786 u_int i, y;
787
788 log_debug("%s: %s @%u", __func__, c->name, w->id);
789
790 if (ctx->statustop)
791 y = 0;
792 else
793 y = c->tty.sy - ctx->statuslines;
794 for (i = 0; i < ctx->statuslines; i++) {
795 tty_draw_line(tty, s, 0, i, UINT_MAX, 0, y + i,
796 &grid_default_cell, NULL);
797 }
798 }
799
800 /* Draw one pane. */
801 static void
802 screen_redraw_draw_pane(struct screen_redraw_ctx *ctx, struct window_pane *wp)
803 {
804 struct client *c = ctx->c;
805 struct window *w = c->session->curw->window;
806 struct tty *tty = &c->tty;
807 struct screen *s = wp->screen;
808 struct colour_palette *palette = &wp->palette;
809 struct grid_cell defaults;
810 u_int i, j, top, x, y, width;
811
812 log_debug("%s: %s @%u %%%u", __func__, c->name, w->id, wp->id);
813
814 if (wp->xoff + wp->sx <= ctx->ox || wp->xoff >= ctx->ox + ctx->sx)
815 return;
816 if (ctx->statustop)
817 top = ctx->statuslines;
818 else
819 top = 0;
820 for (j = 0; j < wp->sy; j++) {
821 if (wp->yoff + j < ctx->oy || wp->yoff + j >= ctx->oy + ctx->sy)
822 continue;
823 y = top + wp->yoff + j - ctx->oy;
824
825 if (wp->xoff >= ctx->ox &&
826 wp->xoff + wp->sx <= ctx->ox + ctx->sx) {
827 /* All visible. */
828 i = 0;
829 x = wp->xoff - ctx->ox;
830 width = wp->sx;
831 } else if (wp->xoff < ctx->ox &&
832 wp->xoff + wp->sx > ctx->ox + ctx->sx) {
833 /* Both left and right not visible. */
834 i = ctx->ox;
835 x = 0;
836 width = ctx->sx;
837 } else if (wp->xoff < ctx->ox) {
838 /* Left not visible. */
839 i = ctx->ox - wp->xoff;
840 x = 0;
841 width = wp->sx - i;
842 } else {
843 /* Right not visible. */
844 i = 0;
845 x = wp->xoff - ctx->ox;
846 width = ctx->sx - x;
847 }
848 log_debug("%s: %s %%%u line %u,%u at %u,%u, width %u",
849 __func__, c->name, wp->id, i, j, x, y, width);
850
851 tty_default_colours(&defaults, wp);
852 tty_draw_line(tty, s, i, j, width, x, y, &defaults, palette);
853 }
854 }