Annotation of src/usr.bin/tmux/tty.c, Revision 1.60
1.60 ! deraadt 1: /* $OpenBSD: tty.c,v 1.59 2009/10/25 21:11:21 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20: #include <sys/ioctl.h>
21:
22: #include <errno.h>
23: #include <fcntl.h>
1.42 nicm 24: #include <stdlib.h>
1.1 nicm 25: #include <string.h>
26: #include <termios.h>
27: #include <unistd.h>
28:
29: #include "tmux.h"
30:
31: void tty_fill_acs(struct tty *);
32:
33: int tty_try_256(struct tty *, u_char, const char *);
34: int tty_try_88(struct tty *, u_char, const char *);
35:
36: void tty_attributes_fg(struct tty *, const struct grid_cell *);
37: void tty_attributes_bg(struct tty *, const struct grid_cell *);
38:
1.24 nicm 39: void tty_redraw_region(struct tty *, const struct tty_ctx *);
1.13 nicm 40: void tty_emulate_repeat(
41: struct tty *, enum tty_code_code, enum tty_code_code, u_int);
1.14 nicm 42: void tty_cell(struct tty *,
43: const struct grid_cell *, const struct grid_utf8 *);
1.1 nicm 44:
45: void
1.30 nicm 46: tty_init(struct tty *tty, int fd, char *term)
1.1 nicm 47: {
1.30 nicm 48: char *path;
49:
50: memset(tty, 0, sizeof *tty);
1.23 nicm 51: tty->log_fd = -1;
1.22 nicm 52:
1.9 nicm 53: if (term == NULL || *term == '\0')
1.1 nicm 54: tty->termname = xstrdup("unknown");
55: else
56: tty->termname = xstrdup(term);
1.30 nicm 57:
58: if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
59: fatal("fcntl failed");
60: tty->fd = fd;
61:
62: if ((path = ttyname(fd)) == NULL)
63: fatalx("ttyname failed");
64: tty->path = xstrdup(path);
65:
1.1 nicm 66: tty->flags = 0;
67: tty->term_flags = 0;
1.31 nicm 68: }
69:
70: void
71: tty_resize(struct tty *tty)
72: {
73: struct winsize ws;
74:
75: if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
76: tty->sx = ws.ws_col;
77: tty->sy = ws.ws_row;
78: }
79: if (tty->sx == 0)
80: tty->sx = 80;
81: if (tty->sy == 0)
82: tty->sy = 24;
83:
84: tty->cx = UINT_MAX;
85: tty->cy = UINT_MAX;
86:
87: tty->rupper = UINT_MAX;
88: tty->rlower = UINT_MAX;
1.1 nicm 89: }
90:
91: int
1.17 nicm 92: tty_open(struct tty *tty, const char *overrides, char **cause)
1.1 nicm 93: {
1.30 nicm 94: int fd;
1.1 nicm 95:
1.30 nicm 96: if (debug_level > 3) {
97: fd = open("tmux.out", O_WRONLY|O_CREAT|O_TRUNC, 0644);
98: if (fd != -1 && fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
99: fatal("fcntl failed");
100: tty->log_fd = fd;
1.1 nicm 101: }
102:
1.17 nicm 103: tty->term = tty_term_find(tty->termname, tty->fd, overrides, cause);
1.21 nicm 104: if (tty->term == NULL) {
105: tty_close(tty);
106: return (-1);
107: }
108: tty->flags |= TTY_OPENED;
1.1 nicm 109:
110: tty->in = buffer_create(BUFSIZ);
111: tty->out = buffer_create(BUFSIZ);
112:
1.29 nicm 113: tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_ESCAPE);
1.1 nicm 114:
115: tty_start_tty(tty);
116:
117: tty_keys_init(tty);
118:
119: tty_fill_acs(tty);
120:
121: return (0);
122: }
123:
124: void
125: tty_start_tty(struct tty *tty)
126: {
127: struct termios tio;
1.34 nicm 128: int what, mode;
1.33 nicm 129:
130: if (tty->fd == -1)
131: return;
1.1 nicm 132:
1.34 nicm 133: if ((mode = fcntl(tty->fd, F_GETFL)) == -1)
134: fatal("fcntl failed");
135: if (fcntl(tty->fd, F_SETFL, mode|O_NONBLOCK) == -1)
136: fatal("fcntl failed");
137:
1.1 nicm 138: if (tcgetattr(tty->fd, &tty->tio) != 0)
139: fatal("tcgetattr failed");
140: memcpy(&tio, &tty->tio, sizeof tio);
141: tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
142: tio.c_iflag |= IGNBRK;
143: tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
144: tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
145: ECHOPRT|ECHOKE|ECHOCTL|ISIG);
146: tio.c_cc[VMIN] = 1;
1.60 ! deraadt 147: tio.c_cc[VTIME] = 0;
1.1 nicm 148: if (tcsetattr(tty->fd, TCSANOW, &tio) != 0)
149: fatal("tcsetattr failed");
150:
151: what = 0;
152: if (ioctl(tty->fd, TIOCFLUSH, &what) != 0)
153: fatal("ioctl(TIOCFLUSH)");
154:
1.10 nicm 155: tty_putcode(tty, TTYC_SMCUP);
1.1 nicm 156:
1.25 nicm 157: tty_putcode(tty, TTYC_SGR0);
158: memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
159:
1.1 nicm 160: tty_putcode(tty, TTYC_SMKX);
161: tty_putcode(tty, TTYC_ENACS);
162: tty_putcode(tty, TTYC_CLEAR);
163:
164: tty_putcode(tty, TTYC_CNORM);
165: if (tty_term_has(tty->term, TTYC_KMOUS))
166: tty_puts(tty, "\033[?1000l");
167:
168: tty->cx = UINT_MAX;
169: tty->cy = UINT_MAX;
170:
171: tty->rlower = UINT_MAX;
172: tty->rupper = UINT_MAX;
173:
174: tty->mode = MODE_CURSOR;
1.20 nicm 175:
176: tty->flags |= TTY_STARTED;
1.1 nicm 177: }
178:
179: void
180: tty_stop_tty(struct tty *tty)
181: {
182: struct winsize ws;
1.34 nicm 183: int mode;
1.1 nicm 184:
1.20 nicm 185: if (!(tty->flags & TTY_STARTED))
186: return;
187: tty->flags &= ~TTY_STARTED;
188:
1.1 nicm 189: /*
190: * Be flexible about error handling and try not kill the server just
191: * because the fd is invalid. Things like ssh -t can easily leave us
192: * with a dead tty.
193: */
1.34 nicm 194: if ((mode = fcntl(tty->fd, F_GETFL)) == -1)
195: return;
196: if (fcntl(tty->fd, F_SETFL, mode & ~O_NONBLOCK) == -1)
197: return;
1.1 nicm 198: if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
199: return;
200: if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
201: return;
202:
203: tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
204: tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
205: tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
206: tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
207: tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
208:
209: tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
210: if (tty_term_has(tty->term, TTYC_KMOUS))
211: tty_raw(tty, "\033[?1000l");
1.10 nicm 212:
213: tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
1.1 nicm 214: }
215:
216: void
217: tty_fill_acs(struct tty *tty)
218: {
219: const char *ptr;
220:
221: memset(tty->acs, 0, sizeof tty->acs);
222: if (!tty_term_has(tty->term, TTYC_ACSC))
223: return;
224:
225: ptr = tty_term_string(tty->term, TTYC_ACSC);
226: if (strlen(ptr) % 2 != 0)
227: return;
228: for (; *ptr != '\0'; ptr += 2)
229: tty->acs[(u_char) ptr[0]] = ptr[1];
230: }
231:
232: u_char
233: tty_get_acs(struct tty *tty, u_char ch)
234: {
235: if (tty->acs[ch] != '\0')
236: return (tty->acs[ch]);
237: return (ch);
238: }
239:
240: void
1.20 nicm 241: tty_close(struct tty *tty)
1.1 nicm 242: {
243: if (tty->log_fd != -1) {
244: close(tty->log_fd);
245: tty->log_fd = -1;
246: }
247:
1.20 nicm 248: tty_stop_tty(tty);
1.1 nicm 249:
1.21 nicm 250: if (tty->flags & TTY_OPENED) {
251: tty_term_free(tty->term);
252: tty_keys_free(tty);
253:
254: buffer_destroy(tty->in);
255: buffer_destroy(tty->out);
1.1 nicm 256:
1.21 nicm 257: tty->flags &= ~TTY_OPENED;
258: }
1.1 nicm 259:
1.21 nicm 260: if (tty->fd != -1) {
261: close(tty->fd);
262: tty->fd = -1;
263: }
1.1 nicm 264: }
265:
266: void
1.20 nicm 267: tty_free(struct tty *tty)
1.1 nicm 268: {
1.20 nicm 269: tty_close(tty);
1.1 nicm 270:
271: if (tty->path != NULL)
272: xfree(tty->path);
273: if (tty->termname != NULL)
274: xfree(tty->termname);
275: }
276:
277: void
278: tty_raw(struct tty *tty, const char *s)
279: {
280: write(tty->fd, s, strlen(s));
281: }
282:
283: void
284: tty_putcode(struct tty *tty, enum tty_code_code code)
285: {
286: tty_puts(tty, tty_term_string(tty->term, code));
287: }
288:
289: void
290: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
291: {
292: if (a < 0)
293: return;
294: tty_puts(tty, tty_term_string1(tty->term, code, a));
295: }
296:
297: void
298: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
299: {
300: if (a < 0 || b < 0)
301: return;
302: tty_puts(tty, tty_term_string2(tty->term, code, a, b));
303: }
304:
305: void
306: tty_puts(struct tty *tty, const char *s)
307: {
308: if (*s == '\0')
309: return;
310: buffer_write(tty->out, s, strlen(s));
311:
312: if (tty->log_fd != -1)
313: write(tty->log_fd, s, strlen(s));
314: }
315:
316: void
317: tty_putc(struct tty *tty, u_char ch)
318: {
319: u_int sx;
320:
321: if (tty->cell.attr & GRID_ATTR_CHARSET)
322: ch = tty_get_acs(tty, ch);
323: buffer_write8(tty->out, ch);
324:
325: if (ch >= 0x20 && ch != 0x7f) {
326: sx = tty->sx;
327: if (tty->term->flags & TERM_EARLYWRAP)
328: sx--;
329:
1.46 nicm 330: if (tty->cx >= sx) {
331: tty->cx = 1;
332: if (tty->cy != tty->rlower)
333: tty->cy++;
1.1 nicm 334: } else
335: tty->cx++;
336: }
337:
338: if (tty->log_fd != -1)
339: write(tty->log_fd, &ch, 1);
340: }
341:
342: void
1.5 nicm 343: tty_pututf8(struct tty *tty, const struct grid_utf8 *gu)
344: {
1.54 nicm 345: u_int i;
1.5 nicm 346:
347: for (i = 0; i < UTF8_SIZE; i++) {
348: if (gu->data[i] == 0xff)
349: break;
350: buffer_write8(tty->out, gu->data[i]);
351: if (tty->log_fd != -1)
352: write(tty->log_fd, &gu->data[i], 1);
353: }
354:
1.54 nicm 355: tty->cx += gu->width;
1.5 nicm 356: }
357:
358: void
1.1 nicm 359: tty_set_title(struct tty *tty, const char *title)
360: {
361: if (strstr(tty->termname, "xterm") == NULL &&
362: strstr(tty->termname, "rxvt") == NULL &&
363: strcmp(tty->termname, "screen") != 0)
364: return;
365:
366: tty_puts(tty, "\033]0;");
367: tty_puts(tty, title);
368: tty_putc(tty, '\007');
369: }
370:
371: void
372: tty_update_mode(struct tty *tty, int mode)
373: {
374: int changed;
375:
376: if (tty->flags & TTY_NOCURSOR)
377: mode &= ~MODE_CURSOR;
378:
379: changed = mode ^ tty->mode;
380: if (changed & MODE_CURSOR) {
381: if (mode & MODE_CURSOR)
382: tty_putcode(tty, TTYC_CNORM);
383: else
384: tty_putcode(tty, TTYC_CIVIS);
385: }
386: if (changed & MODE_MOUSE) {
387: if (mode & MODE_MOUSE)
388: tty_puts(tty, "\033[?1000h");
389: else
390: tty_puts(tty, "\033[?1000l");
391: }
392: tty->mode = mode;
393: }
394:
395: void
396: tty_emulate_repeat(
397: struct tty *tty, enum tty_code_code code, enum tty_code_code code1, u_int n)
398: {
399: if (tty_term_has(tty->term, code))
400: tty_putcode1(tty, code, n);
401: else {
402: while (n-- > 0)
403: tty_putcode(tty, code1);
404: }
405: }
406:
407: /*
408: * Redraw scroll region using data from screen (already updated). Used when
409: * CSR not supported, or window is a pane that doesn't take up the full
410: * width of the terminal.
411: */
412: void
1.24 nicm 413: tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 414: {
1.14 nicm 415: struct window_pane *wp = ctx->wp;
416: struct screen *s = wp->screen;
417: u_int i;
1.1 nicm 418:
419: /*
420: * If region is >= 50% of the screen, just schedule a window redraw. In
421: * most cases, this is likely to be followed by some more scrolling -
422: * without this, the entire pane ends up being redrawn many times which
423: * can be much more data.
424: */
1.14 nicm 425: if (ctx->orupper - ctx->orlower >= screen_size_y(s) / 2) {
1.1 nicm 426: wp->flags |= PANE_REDRAW;
427: return;
428: }
429:
1.14 nicm 430: if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
431: for (i = ctx->ocy; i < screen_size_y(s); i++)
1.1 nicm 432: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
433: } else {
1.14 nicm 434: for (i = ctx->orupper; i <= ctx->orlower; i++)
1.1 nicm 435: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
436: }
437: }
438:
439: void
440: tty_draw_line(struct tty *tty, struct screen *s, u_int py, u_int ox, u_int oy)
441: {
442: const struct grid_cell *gc;
1.46 nicm 443: struct grid_line *gl;
1.16 nicm 444: struct grid_cell tmpgc;
1.1 nicm 445: const struct grid_utf8 *gu;
446: u_int i, sx;
447:
1.35 nicm 448: tty_update_mode(tty, tty->mode & ~MODE_CURSOR);
449:
1.1 nicm 450: sx = screen_size_x(s);
1.19 nicm 451: if (sx > s->grid->linedata[s->grid->hsize + py].cellsize)
452: sx = s->grid->linedata[s->grid->hsize + py].cellsize;
1.1 nicm 453: if (sx > tty->sx)
454: sx = tty->sx;
455:
1.46 nicm 456: /*
457: * Don't move the cursor to the start permission if it will wrap there
1.50 nicm 458: * itself.
1.46 nicm 459: */
460: gl = NULL;
461: if (py != 0)
462: gl = &s->grid->linedata[s->grid->hsize + py - 1];
1.47 nicm 463: if (oy + py == 0 || (gl != NULL && !(gl->flags & GRID_LINE_WRAPPED)) ||
464: tty->cx < tty->sx || ox != 0 ||
465: (oy + py != tty->cy + 1 && tty->cy != s->rlower + oy))
1.46 nicm 466: tty_cursor(tty, ox, oy + py);
467:
1.1 nicm 468: for (i = 0; i < sx; i++) {
469: gc = grid_view_peek_cell(s->grid, i, py);
470:
471: gu = NULL;
472: if (gc->flags & GRID_FLAG_UTF8)
473: gu = grid_view_peek_utf8(s->grid, i, py);
474:
475: if (screen_check_selection(s, i, py)) {
1.16 nicm 476: memcpy(&tmpgc, &s->sel.cell, sizeof tmpgc);
477: tmpgc.data = gc->data;
1.38 nicm 478: tmpgc.flags = gc->flags &
479: ~(GRID_FLAG_FG256|GRID_FLAG_BG256);
480: tmpgc.flags |= s->sel.cell.flags &
481: (GRID_FLAG_FG256|GRID_FLAG_BG256);
1.16 nicm 482: tty_cell(tty, &tmpgc, gu);
1.1 nicm 483: } else
484: tty_cell(tty, gc, gu);
485: }
486:
1.35 nicm 487: if (sx >= tty->sx) {
488: tty_update_mode(tty, tty->mode);
1.1 nicm 489: return;
1.35 nicm 490: }
1.1 nicm 491: tty_reset(tty);
492:
1.41 nicm 493: tty_cursor(tty, ox + sx, oy + py);
1.1 nicm 494: if (screen_size_x(s) >= tty->sx && tty_term_has(tty->term, TTYC_EL))
495: tty_putcode(tty, TTYC_EL);
496: else {
497: for (i = sx; i < screen_size_x(s); i++)
498: tty_putc(tty, ' ');
1.15 nicm 499: }
1.35 nicm 500: tty_update_mode(tty, tty->mode);
1.15 nicm 501: }
502:
503: void
1.24 nicm 504: tty_write(void (*cmdfn)(
505: struct tty *, const struct tty_ctx *), const struct tty_ctx *ctx)
1.15 nicm 506: {
507: struct window_pane *wp = ctx->wp;
508: struct client *c;
509: u_int i;
510:
511: if (wp == NULL)
512: return;
513:
514: if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
515: return;
516: if (wp->window->flags & WINDOW_HIDDEN || !window_pane_visible(wp))
517: return;
518:
519: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
520: c = ARRAY_ITEM(&clients, i);
521: if (c == NULL || c->session == NULL)
522: continue;
523: if (c->flags & CLIENT_SUSPENDED)
524: continue;
525:
526: if (c->session->curw->window == wp->window) {
527: if (c->tty.flags & TTY_FREEZE || c->tty.term == NULL)
528: continue;
529: cmdfn(&c->tty, ctx);
530: }
1.1 nicm 531: }
532: }
533:
534: void
1.24 nicm 535: tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 536: {
1.12 nicm 537: struct window_pane *wp = ctx->wp;
538: struct screen *s = wp->screen;
1.24 nicm 539: u_int i;
1.1 nicm 540:
541: if (wp->xoff != 0 || screen_size_x(s) < tty->sx) {
1.14 nicm 542: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 543: return;
544: }
545:
546: tty_reset(tty);
547:
1.41 nicm 548: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
549:
1.1 nicm 550: if (tty_term_has(tty->term, TTYC_ICH) ||
551: tty_term_has(tty->term, TTYC_ICH1))
1.12 nicm 552: tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
1.1 nicm 553: else {
554: tty_putcode(tty, TTYC_SMIR);
1.24 nicm 555: for (i = 0; i < ctx->num; i++)
1.1 nicm 556: tty_putc(tty, ' ');
557: tty_putcode(tty, TTYC_RMIR);
558: }
559: }
560:
561: void
1.24 nicm 562: tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 563: {
1.12 nicm 564: struct window_pane *wp = ctx->wp;
565: struct screen *s = wp->screen;
1.1 nicm 566:
1.26 nicm 567: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
568: (!tty_term_has(tty->term, TTYC_DCH) &&
569: !tty_term_has(tty->term, TTYC_DCH1))) {
1.14 nicm 570: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 571: return;
572: }
573:
574: tty_reset(tty);
575:
1.41 nicm 576: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
577:
1.26 nicm 578: if (tty_term_has(tty->term, TTYC_DCH) ||
579: tty_term_has(tty->term, TTYC_DCH1))
580: tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
1.1 nicm 581: }
582:
583: void
1.24 nicm 584: tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 585: {
1.12 nicm 586: struct window_pane *wp = ctx->wp;
587: struct screen *s = wp->screen;
1.1 nicm 588:
589: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
590: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 591: tty_redraw_region(tty, ctx);
1.1 nicm 592: return;
593: }
594:
595: tty_reset(tty);
596:
1.39 nicm 597: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.41 nicm 598: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1 nicm 599:
1.12 nicm 600: tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
1.1 nicm 601: }
602:
603: void
1.24 nicm 604: tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 605: {
1.12 nicm 606: struct window_pane *wp = ctx->wp;
607: struct screen *s = wp->screen;
1.1 nicm 608:
609: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
610: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 611: tty_redraw_region(tty, ctx);
1.1 nicm 612: return;
613: }
614:
615: tty_reset(tty);
616:
1.39 nicm 617: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.41 nicm 618: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1 nicm 619:
1.12 nicm 620: tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
1.1 nicm 621: }
622:
623: void
1.24 nicm 624: tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 625: {
1.12 nicm 626: struct window_pane *wp = ctx->wp;
627: struct screen *s = wp->screen;
628: u_int i;
1.1 nicm 629:
630: tty_reset(tty);
631:
1.41 nicm 632: tty_cursor_pane(tty, ctx, 0, ctx->ocy);
633:
1.1 nicm 634: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
635: tty_term_has(tty->term, TTYC_EL)) {
636: tty_putcode(tty, TTYC_EL);
637: } else {
638: for (i = 0; i < screen_size_x(s); i++)
639: tty_putc(tty, ' ');
640: }
641: }
642:
643: void
1.24 nicm 644: tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 645: {
1.12 nicm 646: struct window_pane *wp = ctx->wp;
647: struct screen *s = wp->screen;
648: u_int i;
1.1 nicm 649:
650: tty_reset(tty);
651:
1.41 nicm 652: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
653:
1.1 nicm 654: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
655: tty_term_has(tty->term, TTYC_EL))
656: tty_putcode(tty, TTYC_EL);
657: else {
1.14 nicm 658: for (i = ctx->ocx; i < screen_size_x(s); i++)
1.1 nicm 659: tty_putc(tty, ' ');
660: }
661: }
662:
663: void
1.24 nicm 664: tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 665: {
1.12 nicm 666: struct window_pane *wp = ctx->wp;
667: u_int i;
1.1 nicm 668:
669: tty_reset(tty);
670:
671: if (wp->xoff == 0 && tty_term_has(tty->term, TTYC_EL1)) {
1.41 nicm 672: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1 nicm 673: tty_putcode(tty, TTYC_EL1);
674: } else {
1.41 nicm 675: tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.14 nicm 676: for (i = 0; i < ctx->ocx + 1; i++)
1.1 nicm 677: tty_putc(tty, ' ');
678: }
679: }
680:
681: void
1.24 nicm 682: tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 683: {
1.12 nicm 684: struct window_pane *wp = ctx->wp;
685: struct screen *s = wp->screen;
1.1 nicm 686:
1.56 nicm 687: if (ctx->ocy != ctx->orupper)
688: return;
689:
1.1 nicm 690: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
691: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 692: tty_redraw_region(tty, ctx);
1.1 nicm 693: return;
694: }
695:
1.56 nicm 696: tty_reset(tty);
697:
698: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
699: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
700:
701: tty_putcode(tty, TTYC_RI);
1.1 nicm 702: }
703:
704: void
1.24 nicm 705: tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 706: {
1.12 nicm 707: struct window_pane *wp = ctx->wp;
708: struct screen *s = wp->screen;
1.1 nicm 709:
1.56 nicm 710: if (ctx->ocy != ctx->orlower)
711: return;
712:
1.1 nicm 713: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
714: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 715: tty_redraw_region(tty, ctx);
1.1 nicm 716: return;
717: }
1.52 nicm 718:
719: /*
720: * If this line wrapped naturally (ctx->num is nonzero), don't do
721: * anything - the cursor can just be moved to the last cell and wrap
722: * naturally.
723: */
724: if (ctx->num && !(tty->term->flags & TERM_EARLYWRAP))
725: return;
1.1 nicm 726:
1.56 nicm 727: tty_reset(tty);
728:
729: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
730: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
731:
732: tty_putc(tty, '\n');
1.1 nicm 733: }
734:
735: void
1.24 nicm 736: tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 737: {
1.12 nicm 738: struct window_pane *wp = ctx->wp;
739: struct screen *s = wp->screen;
740: u_int i, j;
1.1 nicm 741:
742: tty_reset(tty);
743:
1.39 nicm 744: tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41 nicm 745: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.39 nicm 746:
1.1 nicm 747: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
748: tty_term_has(tty->term, TTYC_EL)) {
749: tty_putcode(tty, TTYC_EL);
1.14 nicm 750: if (ctx->ocy != screen_size_y(s) - 1) {
1.41 nicm 751: tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
1.14 nicm 752: for (i = ctx->ocy + 1; i < screen_size_y(s); i++) {
1.1 nicm 753: tty_putcode(tty, TTYC_EL);
754: if (i == screen_size_y(s) - 1)
755: continue;
756: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
757: tty->cy++;
758: }
759: }
760: } else {
1.14 nicm 761: for (i = ctx->ocx; i < screen_size_x(s); i++)
1.1 nicm 762: tty_putc(tty, ' ');
1.14 nicm 763: for (j = ctx->ocy; j < screen_size_y(s); j++) {
1.41 nicm 764: tty_cursor_pane(tty, ctx, 0, j);
1.1 nicm 765: for (i = 0; i < screen_size_x(s); i++)
766: tty_putc(tty, ' ');
767: }
768: }
769: }
770:
771: void
1.24 nicm 772: tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 773: {
1.12 nicm 774: struct window_pane *wp = ctx->wp;
775: struct screen *s = wp->screen;
776: u_int i, j;
1.1 nicm 777:
778: tty_reset(tty);
779:
1.39 nicm 780: tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41 nicm 781: tty_cursor_pane(tty, ctx, 0, 0);
1.39 nicm 782:
1.1 nicm 783: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
784: tty_term_has(tty->term, TTYC_EL)) {
1.14 nicm 785: for (i = 0; i < ctx->ocy; i++) {
1.1 nicm 786: tty_putcode(tty, TTYC_EL);
787: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
788: tty->cy++;
789: }
790: } else {
1.14 nicm 791: for (j = 0; j < ctx->ocy; j++) {
1.41 nicm 792: tty_cursor_pane(tty, ctx, 0, j);
1.1 nicm 793: for (i = 0; i < screen_size_x(s); i++)
794: tty_putc(tty, ' ');
795: }
796: }
1.14 nicm 797: for (i = 0; i <= ctx->ocx; i++)
1.1 nicm 798: tty_putc(tty, ' ');
799: }
800:
801: void
1.24 nicm 802: tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 803: {
1.12 nicm 804: struct window_pane *wp = ctx->wp;
805: struct screen *s = wp->screen;
806: u_int i, j;
1.1 nicm 807:
808: tty_reset(tty);
809:
1.39 nicm 810: tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41 nicm 811: tty_cursor_pane(tty, ctx, 0, 0);
1.39 nicm 812:
1.1 nicm 813: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
814: tty_term_has(tty->term, TTYC_EL)) {
815: for (i = 0; i < screen_size_y(s); i++) {
816: tty_putcode(tty, TTYC_EL);
817: if (i != screen_size_y(s) - 1) {
818: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
819: tty->cy++;
820: }
821: }
822: } else {
823: for (j = 0; j < screen_size_y(s); j++) {
1.41 nicm 824: tty_cursor_pane(tty, ctx, 0, j);
1.1 nicm 825: for (i = 0; i < screen_size_x(s); i++)
826: tty_putc(tty, ' ');
827: }
1.4 nicm 828: }
829: }
830:
831: void
1.24 nicm 832: tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
1.4 nicm 833: {
1.12 nicm 834: struct window_pane *wp = ctx->wp;
835: struct screen *s = wp->screen;
836: u_int i, j;
1.4 nicm 837:
838: tty_reset(tty);
839:
1.39 nicm 840: tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.4 nicm 841:
842: for (j = 0; j < screen_size_y(s); j++) {
1.41 nicm 843: tty_cursor_pane(tty, ctx, 0, j);
1.4 nicm 844: for (i = 0; i < screen_size_x(s); i++)
845: tty_putc(tty, 'E');
1.1 nicm 846: }
847: }
848:
849: void
1.24 nicm 850: tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 851: {
1.46 nicm 852: struct window_pane *wp = ctx->wp;
853: struct screen *s = wp->screen;
1.58 nicm 854: u_int cx;
1.46 nicm 855:
856: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
857:
1.57 nicm 858: /* Is the cursor in the very last position? */
859: if (ctx->ocx > wp->sx - ctx->last_width) {
860: if (wp->xoff != 0 || wp->sx != tty->sx) {
861: /*
862: * The pane doesn't fill the entire line, the linefeed
863: * will already have happened, so just move the cursor.
864: */
865: tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
866: } else if (tty->cx < tty->sx) {
867: /*
868: * The cursor isn't in the last position already, so
869: * move as far left as possinble and redraw the last
870: * cell to move into the last position.
871: */
1.50 nicm 872: cx = screen_size_x(s) - ctx->last_width;
873: tty_cursor_pane(tty, ctx, cx, ctx->ocy);
874: tty_cell(tty, &ctx->last_cell, &ctx->last_utf8);
875: }
876: } else
1.46 nicm 877: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1 nicm 878:
1.12 nicm 879: tty_cell(tty, ctx->cell, ctx->utf8);
1.1 nicm 880: }
881:
882: void
1.24 nicm 883: tty_cmd_utf8character(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 884: {
1.53 nicm 885: struct window_pane *wp = ctx->wp;
1.1 nicm 886:
1.53 nicm 887: /*
888: * Cannot rely on not being a partial character, so just redraw the
889: * whole line.
890: */
891: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 892: }
893:
894: void
895: tty_cell(
896: struct tty *tty, const struct grid_cell *gc, const struct grid_utf8 *gu)
897: {
898: u_int i;
899:
900: /* Skip last character if terminal is stupid. */
901: if (tty->term->flags & TERM_EARLYWRAP &&
902: tty->cy == tty->sy - 1 && tty->cx == tty->sx - 1)
903: return;
904:
905: /* If this is a padding character, do nothing. */
906: if (gc->flags & GRID_FLAG_PADDING)
907: return;
908:
909: /* Set the attributes. */
910: tty_attributes(tty, gc);
911:
912: /* If not UTF-8, write directly. */
913: if (!(gc->flags & GRID_FLAG_UTF8)) {
914: if (gc->data < 0x20 || gc->data == 0x7f)
915: return;
916: tty_putc(tty, gc->data);
917: return;
918: }
919:
920: /* If the terminal doesn't support UTF-8, write underscores. */
921: if (!(tty->flags & TTY_UTF8)) {
922: for (i = 0; i < gu->width; i++)
923: tty_putc(tty, '_');
924: return;
925: }
926:
927: /* Otherwise, write UTF-8. */
1.5 nicm 928: tty_pututf8(tty, gu);
1.1 nicm 929: }
930:
931: void
932: tty_reset(struct tty *tty)
933: {
934: struct grid_cell *gc = &tty->cell;
935:
936: if (memcmp(gc, &grid_default_cell, sizeof *gc) == 0)
937: return;
938:
939: if (tty_term_has(tty->term, TTYC_RMACS) && gc->attr & GRID_ATTR_CHARSET)
940: tty_putcode(tty, TTYC_RMACS);
941: tty_putcode(tty, TTYC_SGR0);
942: memcpy(gc, &grid_default_cell, sizeof *gc);
943: }
944:
1.40 nicm 945: /* Set region inside pane. */
1.1 nicm 946: void
1.39 nicm 947: tty_region_pane(
948: struct tty *tty, const struct tty_ctx *ctx, u_int rupper, u_int rlower)
1.1 nicm 949: {
1.39 nicm 950: struct window_pane *wp = ctx->wp;
951:
1.40 nicm 952: tty_region(tty, wp->yoff + rupper, wp->yoff + rlower);
1.39 nicm 953: }
954:
1.40 nicm 955: /* Set region at absolute position. */
1.39 nicm 956: void
1.40 nicm 957: tty_region(struct tty *tty, u_int rupper, u_int rlower)
1.39 nicm 958: {
959: if (tty->rlower == rlower && tty->rupper == rupper)
960: return;
1.1 nicm 961: if (!tty_term_has(tty->term, TTYC_CSR))
962: return;
1.39 nicm 963:
964: tty->rupper = rupper;
965: tty->rlower = rlower;
1.55 nicm 966:
967: /*
968: * Some terminals (such as PuTTY) do not correctly reset the cursor to
969: * 0,0 if it is beyond the last column (they do not reset their wrap
970: * flag so further output causes a line feed). As a workaround, do an
971: * explicit move to 0 first.
972: */
973: if (tty->cx >= tty->sx)
974: tty_cursor(tty, 0, tty->cy);
1.42 nicm 975:
1.39 nicm 976: tty->cx = 0;
977: tty->cy = 0;
978:
979: tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1.1 nicm 980: }
981:
1.42 nicm 982: /* Move cursor inside pane. */
1.1 nicm 983: void
1.41 nicm 984: tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
985: {
986: struct window_pane *wp = ctx->wp;
987:
988: tty_cursor(tty, wp->xoff + cx, wp->yoff + cy);
989: }
990:
1.42 nicm 991: /* Move cursor to absolute position. */
1.41 nicm 992: void
993: tty_cursor(struct tty *tty, u_int cx, u_int cy)
1.1 nicm 994: {
1.42 nicm 995: struct tty_term *term = tty->term;
996: u_int thisx, thisy;
997: int change;
998:
999: if (cx > tty->sx - 1)
1000: cx = tty->sx - 1;
1001:
1002: thisx = tty->cx;
1003: thisy = tty->cy;
1004:
1005: /* No change. */
1006: if (cx == thisx && cy == thisy)
1007: return;
1008:
1.43 nicm 1009: /* Very end of the line, just use absolute movement. */
1010: if (thisx > tty->sx - 1)
1011: goto absolute;
1012:
1.42 nicm 1013: /* Move to home position (0, 0). */
1014: if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
1015: tty_putcode(tty, TTYC_HOME);
1016: goto out;
1017: }
1018:
1019: /* Zero on the next line. */
1.48 nicm 1020: if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower) {
1.1 nicm 1021: tty_putc(tty, '\r');
1.42 nicm 1022: tty_putc(tty, '\n');
1023: goto out;
1024: }
1025:
1.45 nicm 1026: /* Moving column or row. */
1.42 nicm 1027: if (cy == thisy) {
1.45 nicm 1028: /*
1029: * Moving column only, row staying the same.
1030: */
1031:
1.42 nicm 1032: /* To left edge. */
1033: if (cx == 0) {
1034: tty_putc(tty, '\r');
1035: goto out;
1036: }
1037:
1038: /* One to the left. */
1039: if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) {
1040: tty_putcode(tty, TTYC_CUB1);
1041: goto out;
1042: }
1043:
1044: /* One to the right. */
1045: if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) {
1046: tty_putcode(tty, TTYC_CUF1);
1047: goto out;
1048: }
1049:
1050: /* Calculate difference. */
1051: change = thisx - cx; /* +ve left, -ve right */
1052:
1053: /*
1054: * Use HPA if change is larger than absolute, otherwise move
1055: * the cursor with CUB/CUF.
1056: */
1057: if (abs(change) > cx && tty_term_has(term, TTYC_HPA)) {
1058: tty_putcode1(tty, TTYC_HPA, cx);
1059: goto out;
1060: } else if (change > 0 && tty_term_has(term, TTYC_CUB)) {
1061: tty_putcode1(tty, TTYC_CUB, change);
1062: goto out;
1063: } else if (change < 0 && tty_term_has(term, TTYC_CUF)) {
1064: tty_putcode1(tty, TTYC_CUF, -change);
1065: goto out;
1066: }
1.45 nicm 1067: } else if (cx == thisx) {
1068: /*
1069: * Moving row only, column staying the same.
1070: */
1.42 nicm 1071:
1072: /* One above. */
1.49 nicm 1073: if (thisy != tty->rupper &&
1.42 nicm 1074: cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) {
1075: tty_putcode(tty, TTYC_CUU1);
1076: goto out;
1077: }
1078:
1079: /* One below. */
1.49 nicm 1080: if (thisy != tty->rlower &&
1.42 nicm 1081: cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) {
1082: tty_putcode(tty, TTYC_CUD1);
1083: goto out;
1084: }
1085:
1086: /* Calculate difference. */
1087: change = thisy - cy; /* +ve up, -ve down */
1088:
1089: /*
1.44 nicm 1090: * Try to use VPA if change is larger than absolute or if this change
1.42 nicm 1091: * would cross the scroll region, otherwise use CUU/CUD.
1092: */
1.44 nicm 1093: if (abs(change) > cy ||
1.42 nicm 1094: (change < 0 && cy - change > tty->rlower) ||
1.44 nicm 1095: (change > 0 && cy - change < tty->rupper)) {
1096: if (tty_term_has(term, TTYC_VPA)) {
1097: tty_putcode1(tty, TTYC_VPA, cy);
1098: goto out;
1099: }
1.42 nicm 1100: } else if (change > 0 && tty_term_has(term, TTYC_CUU)) {
1101: tty_putcode1(tty, TTYC_CUU, change);
1102: goto out;
1103: } else if (change < 0 && tty_term_has(term, TTYC_CUD)) {
1104: tty_putcode1(tty, TTYC_CUD, -change);
1105: goto out;
1106: }
1107: }
1108:
1.43 nicm 1109: absolute:
1.42 nicm 1110: /* Absolute movement. */
1111: tty_putcode2(tty, TTYC_CUP, cy, cx);
1112:
1113: out:
1114: tty->cx = cx;
1115: tty->cy = cy;
1.1 nicm 1116: }
1117:
1118: void
1119: tty_attributes(struct tty *tty, const struct grid_cell *gc)
1120: {
1121: struct grid_cell *tc = &tty->cell;
1122: u_char changed;
1.18 nicm 1123: u_int fg, bg, attr;
1124:
1125: /*
1126: * If no setab, try to use the reverse attribute as a best-effort for a
1127: * non-default background. This is a bit of a hack but it doesn't do
1128: * any serious harm and makes a couple of applications happier.
1129: */
1130: fg = gc->fg; bg = gc->bg; attr = gc->attr;
1131: if (!tty_term_has(tty->term, TTYC_SETAB)) {
1132: if (attr & GRID_ATTR_REVERSE) {
1133: if (fg != 7 && fg != 8)
1134: attr &= ~GRID_ATTR_REVERSE;
1135: } else {
1136: if (bg != 0 && bg != 8)
1137: attr |= GRID_ATTR_REVERSE;
1138: }
1139: }
1.1 nicm 1140:
1141: /* If any bits are being cleared, reset everything. */
1.18 nicm 1142: if (tc->attr & ~attr)
1.1 nicm 1143: tty_reset(tty);
1144:
1145: /* Filter out attribute bits already set. */
1.18 nicm 1146: changed = attr & ~tc->attr;
1147: tc->attr = attr;
1.1 nicm 1148:
1149: /* Set the attributes. */
1150: if (changed & GRID_ATTR_BRIGHT)
1151: tty_putcode(tty, TTYC_BOLD);
1152: if (changed & GRID_ATTR_DIM)
1153: tty_putcode(tty, TTYC_DIM);
1154: if (changed & GRID_ATTR_ITALICS)
1155: tty_putcode(tty, TTYC_SMSO);
1156: if (changed & GRID_ATTR_UNDERSCORE)
1157: tty_putcode(tty, TTYC_SMUL);
1158: if (changed & GRID_ATTR_BLINK)
1159: tty_putcode(tty, TTYC_BLINK);
1160: if (changed & GRID_ATTR_REVERSE) {
1161: if (tty_term_has(tty->term, TTYC_REV))
1162: tty_putcode(tty, TTYC_REV);
1163: else if (tty_term_has(tty->term, TTYC_SMSO))
1164: tty_putcode(tty, TTYC_SMSO);
1165: }
1166: if (changed & GRID_ATTR_HIDDEN)
1167: tty_putcode(tty, TTYC_INVIS);
1168: if (changed & GRID_ATTR_CHARSET)
1169: tty_putcode(tty, TTYC_SMACS);
1170:
1171: /* Set foreground colour. */
1172: if (fg != tc->fg ||
1173: (gc->flags & GRID_FLAG_FG256) != (tc->flags & GRID_FLAG_FG256)) {
1174: tty_attributes_fg(tty, gc);
1175: tc->fg = fg;
1.8 nicm 1176: tc->flags &= ~GRID_FLAG_FG256;
1177: tc->flags |= gc->flags & GRID_FLAG_FG256;
1.1 nicm 1178: }
1179:
1180: /* Set background colour. */
1181: if (bg != tc->bg ||
1182: (gc->flags & GRID_FLAG_BG256) != (tc->flags & GRID_FLAG_BG256)) {
1183: tty_attributes_bg(tty, gc);
1184: tc->bg = bg;
1.8 nicm 1185: tc->flags &= ~GRID_FLAG_BG256;
1186: tc->flags |= gc->flags & GRID_FLAG_BG256;
1.1 nicm 1187: }
1188: }
1189:
1190: int
1191: tty_try_256(struct tty *tty, u_char colour, const char *type)
1192: {
1193: char s[32];
1194:
1195: if (!(tty->term->flags & TERM_256COLOURS) &&
1196: !(tty->term_flags & TERM_256COLOURS))
1197: return (-1);
1198:
1199: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1200: tty_puts(tty, s);
1201: return (0);
1202: }
1203:
1204: int
1205: tty_try_88(struct tty *tty, u_char colour, const char *type)
1206: {
1207: char s[32];
1208:
1209: if (!(tty->term->flags & TERM_88COLOURS) &&
1210: !(tty->term_flags & TERM_88COLOURS))
1211: return (-1);
1212: colour = colour_256to88(colour);
1213:
1214: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1215: tty_puts(tty, s);
1216: return (0);
1217: }
1218:
1219: void
1220: tty_attributes_fg(struct tty *tty, const struct grid_cell *gc)
1221: {
1222: u_char fg;
1223:
1224: fg = gc->fg;
1225: if (gc->flags & GRID_FLAG_FG256) {
1226: if (tty_try_256(tty, fg, "38") == 0)
1227: return;
1228: if (tty_try_88(tty, fg, "38") == 0)
1229: return;
1230: fg = colour_256to16(fg);
1231: if (fg & 8) {
1232: fg &= 7;
1233: tty_putcode(tty, TTYC_BOLD);
1234: tty->cell.attr |= GRID_ATTR_BRIGHT;
1235: } else if (tty->cell.attr & GRID_ATTR_BRIGHT)
1236: tty_reset(tty);
1237: }
1238:
1.59 nicm 1239: if (fg == 8) {
1240: if (tty_term_has(tty->term, TTYC_AX)) {
1241: /* AX is an extension that means \033[39m works. */
1242: tty_puts(tty, "\033[39m");
1243: } else if (tty_term_has(tty->term, TTYC_OP)) {
1244: /*
1245: * op can be used to look for default colours but there
1246: * is no point in using it - with some terminals it
1247: * does SGR0 and others not, so SGR0 is needed anyway
1248: * to put the terminal into a known state.
1249: */
1250: tty_reset(tty);
1251: } else
1252: tty_putcode1(tty, TTYC_SETAF, 7);
1253: } else
1.1 nicm 1254: tty_putcode1(tty, TTYC_SETAF, fg);
1255: }
1256:
1257: void
1258: tty_attributes_bg(struct tty *tty, const struct grid_cell *gc)
1259: {
1260: u_char bg;
1261:
1262: bg = gc->bg;
1263: if (gc->flags & GRID_FLAG_BG256) {
1264: if (tty_try_256(tty, bg, "48") == 0)
1265: return;
1266: if (tty_try_88(tty, bg, "48") == 0)
1267: return;
1268: bg = colour_256to16(bg);
1269: if (bg & 8)
1270: bg &= 7;
1271: }
1272:
1.59 nicm 1273: if (bg == 8) {
1274: if (tty_term_has(tty->term, TTYC_AX)) {
1275: tty_puts(tty, "\033[49m");
1276: } else if (tty_term_has(tty->term, TTYC_OP))
1277: tty_reset(tty);
1278: else
1279: tty_putcode1(tty, TTYC_SETAB, 0);
1280: } else
1.1 nicm 1281: tty_putcode1(tty, TTYC_SETAB, bg);
1282: }