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1.4 ! nicm 1: /* $OpenBSD: tty.c,v 1.3 2009/06/03 23:26:56 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>
24: #include <string.h>
25: #include <termios.h>
26: #include <unistd.h>
27:
28: #include "tmux.h"
29:
30: void tty_fill_acs(struct tty *);
31:
32: void tty_raw(struct tty *, const char *);
33:
34: int tty_try_256(struct tty *, u_char, const char *);
35: int tty_try_88(struct tty *, u_char, const char *);
36:
37: void tty_attributes(struct tty *, const struct grid_cell *);
38: void tty_attributes_fg(struct tty *, const struct grid_cell *);
39: void tty_attributes_bg(struct tty *, const struct grid_cell *);
40:
1.4 ! nicm 41: void tty_cmd_alignmenttest(struct tty *, struct window_pane *, va_list);
1.1 nicm 42: void tty_cmd_cell(struct tty *, struct window_pane *, va_list);
43: void tty_cmd_clearendofline(struct tty *, struct window_pane *, va_list);
44: void tty_cmd_clearendofscreen(struct tty *, struct window_pane *, va_list);
45: void tty_cmd_clearline(struct tty *, struct window_pane *, va_list);
46: void tty_cmd_clearscreen(struct tty *, struct window_pane *, va_list);
47: void tty_cmd_clearstartofline(struct tty *, struct window_pane *, va_list);
48: void tty_cmd_clearstartofscreen(struct tty *, struct window_pane *, va_list);
49: void tty_cmd_deletecharacter(struct tty *, struct window_pane *, va_list);
50: void tty_cmd_deleteline(struct tty *, struct window_pane *, va_list);
51: void tty_cmd_insertcharacter(struct tty *, struct window_pane *, va_list);
52: void tty_cmd_insertline(struct tty *, struct window_pane *, va_list);
53: void tty_cmd_linefeed(struct tty *, struct window_pane *, va_list);
54: void tty_cmd_raw(struct tty *, struct window_pane *, va_list);
55: void tty_cmd_reverseindex(struct tty *, struct window_pane *, va_list);
56:
57: void (*tty_cmds[])(struct tty *, struct window_pane *, va_list) = {
1.4 ! nicm 58: tty_cmd_alignmenttest,
1.1 nicm 59: tty_cmd_cell,
60: tty_cmd_clearendofline,
61: tty_cmd_clearendofscreen,
62: tty_cmd_clearline,
63: tty_cmd_clearscreen,
64: tty_cmd_clearstartofline,
65: tty_cmd_clearstartofscreen,
66: tty_cmd_deletecharacter,
67: tty_cmd_deleteline,
68: tty_cmd_insertcharacter,
69: tty_cmd_insertline,
70: tty_cmd_linefeed,
71: tty_cmd_raw,
72: tty_cmd_reverseindex,
73: };
74:
75: void
76: tty_init(struct tty *tty, char *path, char *term)
77: {
78: tty->path = xstrdup(path);
79: if (term == NULL)
80: tty->termname = xstrdup("unknown");
81: else
82: tty->termname = xstrdup(term);
83: tty->flags = 0;
84: tty->term_flags = 0;
85: }
86:
87: int
88: tty_open(struct tty *tty, char **cause)
89: {
90: int mode;
91:
92: tty->fd = open(tty->path, O_RDWR|O_NONBLOCK);
93: if (tty->fd == -1) {
94: xasprintf(cause, "%s: %s", tty->path, strerror(errno));
95: return (-1);
96: }
97:
98: if ((mode = fcntl(tty->fd, F_GETFL)) == -1)
99: fatal("fcntl failed");
100: if (fcntl(tty->fd, F_SETFL, mode|O_NONBLOCK) == -1)
101: fatal("fcntl failedo");
102: if (fcntl(tty->fd, F_SETFD, FD_CLOEXEC) == -1)
103: fatal("fcntl failed");
104:
105: if (debug_level > 3)
106: tty->log_fd = open("tmux.out", O_WRONLY|O_CREAT|O_TRUNC, 0644);
107: else
108: tty->log_fd = -1;
109:
110: if ((tty->term = tty_term_find(tty->termname, tty->fd, cause)) == NULL)
111: goto error;
112:
113: tty->in = buffer_create(BUFSIZ);
114: tty->out = buffer_create(BUFSIZ);
115:
116: tty->flags &= TTY_UTF8;
117:
118: tty_start_tty(tty);
119:
120: tty_keys_init(tty);
121:
122: tty_fill_acs(tty);
123:
124: return (0);
125:
126: error:
127: close(tty->fd);
128: tty->fd = -1;
129:
130: return (-1);
131: }
132:
133: void
134: tty_start_tty(struct tty *tty)
135: {
136: struct termios tio;
137: int what;
138:
1.2 nicm 139: #if 0
1.1 nicm 140: tty_detect_utf8(tty);
1.2 nicm 141: #endif
1.1 nicm 142:
143: if (tcgetattr(tty->fd, &tty->tio) != 0)
144: fatal("tcgetattr failed");
145: memcpy(&tio, &tty->tio, sizeof tio);
146: tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
147: tio.c_iflag |= IGNBRK;
148: tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
149: tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
150: ECHOPRT|ECHOKE|ECHOCTL|ISIG);
151: tio.c_cc[VMIN] = 1;
152: tio.c_cc[VTIME] = 0;
153: if (tcsetattr(tty->fd, TCSANOW, &tio) != 0)
154: fatal("tcsetattr failed");
155:
156: what = 0;
157: if (ioctl(tty->fd, TIOCFLUSH, &what) != 0)
158: fatal("ioctl(TIOCFLUSH)");
159:
160: tty_putcode(tty, TTYC_IS1);
161: tty_putcode(tty, TTYC_IS2);
162: tty_putcode(tty, TTYC_IS3);
163:
164: tty_putcode(tty, TTYC_SMCUP);
165: tty_putcode(tty, TTYC_SMKX);
166: tty_putcode(tty, TTYC_ENACS);
167: tty_putcode(tty, TTYC_CLEAR);
168:
169: tty_putcode(tty, TTYC_CNORM);
170: if (tty_term_has(tty->term, TTYC_KMOUS))
171: tty_puts(tty, "\033[?1000l");
172:
173: memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
174:
175: tty->cx = UINT_MAX;
176: tty->cy = UINT_MAX;
177:
178: tty->rlower = UINT_MAX;
179: tty->rupper = UINT_MAX;
180:
181: tty->mode = MODE_CURSOR;
182: }
183:
184: void
185: tty_stop_tty(struct tty *tty)
186: {
187: struct winsize ws;
188:
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: */
194: if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
195: return;
196: if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
197: return;
198:
199: tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
200: tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
201: tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
202: tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
203: tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
204: tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
205:
206: tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
207: if (tty_term_has(tty->term, TTYC_KMOUS))
208: tty_raw(tty, "\033[?1000l");
209: }
210:
1.2 nicm 211: #if 0
1.1 nicm 212: void
213: tty_detect_utf8(struct tty *tty)
214: {
215: struct pollfd pfd;
216: char buf[7];
217: size_t len;
218: ssize_t n;
219: int nfds;
220: struct termios tio, old_tio;
221: int what;
222:
223: if (tty->flags & TTY_UTF8)
224: return;
225:
226: /*
227: * If the terminal looks reasonably likely to support this, try to
228: * write a three-byte UTF-8 wide character to the terminal, then read
229: * the cursor position.
230: *
231: * XXX This entire function is a hack.
232: */
233:
234: /* Check if the terminal looks sort of vt100. */
235: if (strstr(tty_term_string(tty->term, TTYC_CLEAR), "[2J") == NULL ||
236: strstr(tty_term_string(tty->term, TTYC_CUP), "H") == NULL)
237: return;
238:
239: if (tcgetattr(tty->fd, &old_tio) != 0)
240: fatal("tcgetattr failed");
241: cfmakeraw(&tio);
242: if (tcsetattr(tty->fd, TCSANOW, &tio) != 0)
243: fatal("tcsetattr failed");
244:
245: what = 0;
246: if (ioctl(tty->fd, TIOCFLUSH, &what) != 0)
247: fatal("ioctl(TIOCFLUSH)");
248:
249: #define UTF8_TEST_DATA "\033[H\357\277\246\033[6n"
250: if (write(tty->fd, UTF8_TEST_DATA, (sizeof UTF8_TEST_DATA) - 1) == -1)
251: fatal("write failed");
252: #undef UTF8_TEST_DATA
253:
254: len = 0;
255: for (;;) {
256: pfd.fd = tty->fd;
257: pfd.events = POLLIN;
258:
259: nfds = poll(&pfd, 1, 500);
260: if (nfds == -1) {
261: if (errno == EAGAIN || errno == EINTR)
262: continue;
263: fatal("poll failed");
264: }
265: if (nfds == 0)
266: break;
267: if (pfd.revents & (POLLERR|POLLNVAL|POLLHUP))
268: break;
269: if (!(pfd.revents & POLLIN))
270: continue;
271:
272: if ((n = read(tty->fd, buf + len, 1)) != 1)
273: break;
274: buf[++len] = '\0';
275:
276: if (len == (sizeof buf) - 1) {
277: if (strcmp(buf, "\033[1;3R") == 0)
278: tty->flags |= TTY_UTF8;
279: break;
280: }
281: }
282:
283: if (tcsetattr(tty->fd, TCSANOW, &old_tio) != 0)
284: fatal("tcsetattr failed");
285: }
1.2 nicm 286: #endif
1.1 nicm 287:
288: void
289: tty_fill_acs(struct tty *tty)
290: {
291: const char *ptr;
292:
293: memset(tty->acs, 0, sizeof tty->acs);
294: if (!tty_term_has(tty->term, TTYC_ACSC))
295: return;
296:
297: ptr = tty_term_string(tty->term, TTYC_ACSC);
298: if (strlen(ptr) % 2 != 0)
299: return;
300: for (; *ptr != '\0'; ptr += 2)
301: tty->acs[(u_char) ptr[0]] = ptr[1];
302: }
303:
304: u_char
305: tty_get_acs(struct tty *tty, u_char ch)
306: {
307: if (tty->acs[ch] != '\0')
308: return (tty->acs[ch]);
309: return (ch);
310: }
311:
312: void
313: tty_close(struct tty *tty, int no_stop)
314: {
315: if (tty->fd == -1)
316: return;
317:
318: if (tty->log_fd != -1) {
319: close(tty->log_fd);
320: tty->log_fd = -1;
321: }
322:
323: if (!no_stop)
324: tty_stop_tty(tty);
325:
326: tty_term_free(tty->term);
327: tty_keys_free(tty);
328:
329: close(tty->fd);
330: tty->fd = -1;
331:
332: buffer_destroy(tty->in);
333: buffer_destroy(tty->out);
334: }
335:
336: void
337: tty_free(struct tty *tty, int no_stop)
338: {
339: tty_close(tty, no_stop);
340:
341: if (tty->path != NULL)
342: xfree(tty->path);
343: if (tty->termname != NULL)
344: xfree(tty->termname);
345: }
346:
347: void
348: tty_raw(struct tty *tty, const char *s)
349: {
350: write(tty->fd, s, strlen(s));
351: }
352:
353: void
354: tty_putcode(struct tty *tty, enum tty_code_code code)
355: {
356: tty_puts(tty, tty_term_string(tty->term, code));
357: }
358:
359: void
360: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
361: {
362: if (a < 0)
363: return;
364: tty_puts(tty, tty_term_string1(tty->term, code, a));
365: }
366:
367: void
368: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
369: {
370: if (a < 0 || b < 0)
371: return;
372: tty_puts(tty, tty_term_string2(tty->term, code, a, b));
373: }
374:
375: void
376: tty_puts(struct tty *tty, const char *s)
377: {
378: if (*s == '\0')
379: return;
380: buffer_write(tty->out, s, strlen(s));
381:
382: if (tty->log_fd != -1)
383: write(tty->log_fd, s, strlen(s));
384: }
385:
386: void
387: tty_putc(struct tty *tty, u_char ch)
388: {
389: u_int sx;
390:
391: if (tty->cell.attr & GRID_ATTR_CHARSET)
392: ch = tty_get_acs(tty, ch);
393: buffer_write8(tty->out, ch);
394:
395: if (ch >= 0x20 && ch != 0x7f) {
396: sx = tty->sx;
397: if (tty->term->flags & TERM_EARLYWRAP)
398: sx--;
399:
400: if (tty->cx == sx) {
401: tty->cx = 0;
402: tty->cy++;
403: } else
404: tty->cx++;
405: }
406:
407: if (tty->log_fd != -1)
408: write(tty->log_fd, &ch, 1);
409: }
410:
411: void
412: tty_set_title(struct tty *tty, const char *title)
413: {
414: if (strstr(tty->termname, "xterm") == NULL &&
415: strstr(tty->termname, "rxvt") == NULL &&
416: strcmp(tty->termname, "screen") != 0)
417: return;
418:
419: tty_puts(tty, "\033]0;");
420: tty_puts(tty, title);
421: tty_putc(tty, '\007');
422: }
423:
424: void
425: tty_update_mode(struct tty *tty, int mode)
426: {
427: int changed;
428:
429: if (tty->flags & TTY_NOCURSOR)
430: mode &= ~MODE_CURSOR;
431:
432: changed = mode ^ tty->mode;
433: if (changed & MODE_CURSOR) {
434: if (mode & MODE_CURSOR)
435: tty_putcode(tty, TTYC_CNORM);
436: else
437: tty_putcode(tty, TTYC_CIVIS);
438: }
439: if (changed & MODE_MOUSE) {
440: if (mode & MODE_MOUSE)
441: tty_puts(tty, "\033[?1000h");
442: else
443: tty_puts(tty, "\033[?1000l");
444: }
445: tty->mode = mode;
446: }
447:
448: void
449: tty_emulate_repeat(
450: struct tty *tty, enum tty_code_code code, enum tty_code_code code1, u_int n)
451: {
452: if (tty_term_has(tty->term, code))
453: tty_putcode1(tty, code, n);
454: else {
455: while (n-- > 0)
456: tty_putcode(tty, code1);
457: }
458: }
459:
460: /*
461: * Redraw scroll region using data from screen (already updated). Used when
462: * CSR not supported, or window is a pane that doesn't take up the full
463: * width of the terminal.
464: */
465: void
466: tty_redraw_region(struct tty *tty, struct window_pane *wp)
467: {
468: struct screen *s = wp->screen;
469: u_int i;
470:
471: /*
472: * If region is >= 50% of the screen, just schedule a window redraw. In
473: * most cases, this is likely to be followed by some more scrolling -
474: * without this, the entire pane ends up being redrawn many times which
475: * can be much more data.
476: */
477: if (s->old_rupper - s->old_rlower >= screen_size_y(s) / 2) {
478: wp->flags |= PANE_REDRAW;
479: return;
480: }
481:
482: if (s->old_cy < s->old_rupper || s->old_cy > s->old_rlower) {
483: for (i = s->old_cy; i < screen_size_y(s); i++)
484: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
485: } else {
486: for (i = s->old_rupper; i <= s->old_rlower; i++)
487: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
488: }
489: }
490:
491: void
492: tty_draw_line(struct tty *tty, struct screen *s, u_int py, u_int ox, u_int oy)
493: {
494: const struct grid_cell *gc;
495: const struct grid_utf8 *gu;
496: u_int i, sx;
497:
498: sx = screen_size_x(s);
499: if (sx > s->grid->size[s->grid->hsize + py])
500: sx = s->grid->size[s->grid->hsize + py];
501: if (sx > tty->sx)
502: sx = tty->sx;
503:
504: tty_cursor(tty, 0, py, ox, oy);
505: for (i = 0; i < sx; i++) {
506: gc = grid_view_peek_cell(s->grid, i, py);
507:
508: gu = NULL;
509: if (gc->flags & GRID_FLAG_UTF8)
510: gu = grid_view_peek_utf8(s->grid, i, py);
511:
512: if (screen_check_selection(s, i, py)) {
513: s->sel.cell.data = gc->data;
514: tty_cell(tty, &s->sel.cell, gu);
515: } else
516: tty_cell(tty, gc, gu);
517: }
518:
519: if (sx >= tty->sx)
520: return;
521: tty_reset(tty);
522:
523: tty_cursor(tty, sx, py, ox, oy);
524: if (screen_size_x(s) >= tty->sx && tty_term_has(tty->term, TTYC_EL))
525: tty_putcode(tty, TTYC_EL);
526: else {
527: for (i = sx; i < screen_size_x(s); i++)
528: tty_putc(tty, ' ');
529: }
530: }
531:
532: void
533: tty_write(struct tty *tty, struct window_pane *wp, enum tty_cmd cmd, ...)
534: {
535: va_list ap;
536:
537: va_start(ap, cmd);
538: tty_vwrite(tty, wp, cmd, ap);
539: va_end(ap);
540: }
541:
542: void
543: tty_vwrite(
544: struct tty *tty, struct window_pane *wp, enum tty_cmd cmd, va_list ap)
545: {
546: if (tty->flags & TTY_FREEZE || tty->term == NULL)
547: return;
548: if (tty_cmds[cmd] != NULL)
549: tty_cmds[cmd](tty, wp, ap);
550: }
551:
552: void
553: tty_cmd_insertcharacter(struct tty *tty, struct window_pane *wp, va_list ap)
554: {
555: struct screen *s = wp->screen;
556: u_int ua;
557:
558: if (wp->xoff != 0 || screen_size_x(s) < tty->sx) {
559: tty_draw_line(tty, wp->screen, s->old_cy, wp->xoff, wp->yoff);
560: return;
561: }
562:
563: ua = va_arg(ap, u_int);
564:
565: tty_reset(tty);
566:
567: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
568: if (tty_term_has(tty->term, TTYC_ICH) ||
569: tty_term_has(tty->term, TTYC_ICH1))
570: tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ua);
571: else {
572: tty_putcode(tty, TTYC_SMIR);
573: while (ua-- > 0)
574: tty_putc(tty, ' ');
575: tty_putcode(tty, TTYC_RMIR);
576: }
577: }
578:
579: void
580: tty_cmd_deletecharacter(struct tty *tty, struct window_pane *wp, va_list ap)
581: {
582: struct screen *s = wp->screen;
583: u_int ua;
584:
585: if (wp->xoff != 0 || screen_size_x(s) < tty->sx) {
586: tty_draw_line(tty, wp->screen, s->old_cy, wp->xoff, wp->yoff);
587: return;
588: }
589:
590: ua = va_arg(ap, u_int);
591:
592: tty_reset(tty);
593:
594: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
595: tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ua);
596: }
597:
598: void
599: tty_cmd_insertline(struct tty *tty, struct window_pane *wp, va_list ap)
600: {
601: struct screen *s = wp->screen;
602: u_int ua;
603:
604: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
605: !tty_term_has(tty->term, TTYC_CSR)) {
606: tty_redraw_region(tty, wp);
607: return;
608: }
609:
610: ua = va_arg(ap, u_int);
611:
612: tty_reset(tty);
613:
614: tty_region(tty, s->old_rupper, s->old_rlower, wp->yoff);
615:
616: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
617: tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ua);
618: }
619:
620: void
621: tty_cmd_deleteline(struct tty *tty, struct window_pane *wp, va_list ap)
622: {
623: struct screen *s = wp->screen;
624: u_int ua;
625:
626: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
627: !tty_term_has(tty->term, TTYC_CSR)) {
628: tty_redraw_region(tty, wp);
629: return;
630: }
631:
632: ua = va_arg(ap, u_int);
633:
634: tty_reset(tty);
635:
636: tty_region(tty, s->old_rupper, s->old_rlower, wp->yoff);
637:
638: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
639: tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ua);
640: }
641:
642: void
643: tty_cmd_clearline(struct tty *tty, struct window_pane *wp, unused va_list ap)
644: {
645: struct screen *s = wp->screen;
646: u_int i;
647:
648: tty_reset(tty);
649:
650: tty_cursor(tty, 0, s->old_cy, wp->xoff, wp->yoff);
651: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
652: tty_term_has(tty->term, TTYC_EL)) {
653: tty_putcode(tty, TTYC_EL);
654: } else {
655: for (i = 0; i < screen_size_x(s); i++)
656: tty_putc(tty, ' ');
657: }
658: }
659:
660: void
661: tty_cmd_clearendofline(
662: struct tty *tty, struct window_pane *wp, unused va_list ap)
663: {
664: struct screen *s = wp->screen;
665: u_int i;
666:
667: tty_reset(tty);
668:
669: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
670: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
671: tty_term_has(tty->term, TTYC_EL))
672: tty_putcode(tty, TTYC_EL);
673: else {
674: for (i = s->old_cx; i < screen_size_x(s); i++)
675: tty_putc(tty, ' ');
676: }
677: }
678:
679: void
680: tty_cmd_clearstartofline(
681: struct tty *tty, struct window_pane *wp, unused va_list ap)
682: {
683: struct screen *s = wp->screen;
684: u_int i;
685:
686: tty_reset(tty);
687:
688: if (wp->xoff == 0 && tty_term_has(tty->term, TTYC_EL1)) {
689: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
690: tty_putcode(tty, TTYC_EL1);
691: } else {
692: tty_cursor(tty, 0, s->old_cy, wp->xoff, wp->yoff);
693: for (i = 0; i < s->old_cx + 1; i++)
694: tty_putc(tty, ' ');
695: }
696: }
697:
698: void
699: tty_cmd_reverseindex(struct tty *tty, struct window_pane *wp, unused va_list ap)
700: {
701: struct screen *s = wp->screen;
702:
703: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
704: !tty_term_has(tty->term, TTYC_CSR)) {
705: tty_redraw_region(tty, wp);
706: return;
707: }
708:
709: tty_reset(tty);
710:
711: tty_region(tty, s->old_rupper, s->old_rlower, wp->yoff);
712:
713: if (s->old_cy == s->old_rupper) {
714: tty_cursor(tty, s->old_cx, s->old_rupper, wp->xoff, wp->yoff);
715: tty_putcode(tty, TTYC_RI);
716: }
717: }
718:
719: void
720: tty_cmd_linefeed(struct tty *tty, struct window_pane *wp, unused va_list ap)
721: {
722: struct screen *s = wp->screen;
723:
724: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
725: !tty_term_has(tty->term, TTYC_CSR)) {
726: tty_redraw_region(tty, wp);
727: return;
728: }
729:
730: tty_reset(tty);
731:
732: tty_region(tty, s->old_rupper, s->old_rlower, wp->yoff);
733:
734: if (s->old_cy == s->old_rlower) {
735: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
736: tty_putc(tty, '\n');
737: }
738: }
739:
740: void
741: tty_cmd_clearendofscreen(
742: struct tty *tty, struct window_pane *wp, unused va_list ap)
743: {
744: struct screen *s = wp->screen;
745: u_int i, j, oy;
746:
747: oy = wp->yoff;
748:
749: tty_reset(tty);
750:
751: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
752: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
753: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
754: tty_term_has(tty->term, TTYC_EL)) {
755: tty_putcode(tty, TTYC_EL);
756: if (s->old_cy != screen_size_y(s) - 1) {
757: tty_cursor(tty, 0, s->old_cy + 1, wp->xoff, wp->yoff);
758: for (i = s->old_cy + 1; i < screen_size_y(s); i++) {
759: tty_putcode(tty, TTYC_EL);
760: if (i == screen_size_y(s) - 1)
761: continue;
762: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
763: tty->cy++;
764: }
765: }
766: } else {
767: for (i = s->old_cx; i < screen_size_x(s); i++)
768: tty_putc(tty, ' ');
769: for (j = s->old_cy; j < screen_size_y(s); j++) {
770: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
771: for (i = 0; i < screen_size_x(s); i++)
772: tty_putc(tty, ' ');
773: }
774: }
775: }
776:
777: void
778: tty_cmd_clearstartofscreen(
779: struct tty *tty, struct window_pane *wp, unused va_list ap)
780: {
781: struct screen *s = wp->screen;
782: u_int i, j;
783:
784: tty_reset(tty);
785:
786: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
787: tty_cursor(tty, 0, 0, wp->xoff, wp->yoff);
788: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
789: tty_term_has(tty->term, TTYC_EL)) {
790: for (i = 0; i < s->old_cy; i++) {
791: tty_putcode(tty, TTYC_EL);
792: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
793: tty->cy++;
794: }
795: } else {
796: for (j = 0; j < s->old_cy; j++) {
797: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
798: for (i = 0; i < screen_size_x(s); i++)
799: tty_putc(tty, ' ');
800: }
801: }
1.3 nicm 802: for (i = 0; i <= s->old_cx; i++)
1.1 nicm 803: tty_putc(tty, ' ');
804: }
805:
806: void
807: tty_cmd_clearscreen(
808: struct tty *tty, struct window_pane *wp, unused va_list ap)
809: {
810: struct screen *s = wp->screen;
811: u_int i, j;
812:
813: tty_reset(tty);
814:
815: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
816: tty_cursor(tty, 0, 0, wp->xoff, wp->yoff);
817: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
818: tty_term_has(tty->term, TTYC_EL)) {
819: for (i = 0; i < screen_size_y(s); i++) {
820: tty_putcode(tty, TTYC_EL);
821: if (i != screen_size_y(s) - 1) {
822: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
823: tty->cy++;
824: }
825: }
826: } else {
827: for (j = 0; j < screen_size_y(s); j++) {
828: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
829: for (i = 0; i < screen_size_x(s); i++)
830: tty_putc(tty, ' ');
831: }
1.4 ! nicm 832: }
! 833: }
! 834:
! 835: void
! 836: tty_cmd_alignmenttest(
! 837: struct tty *tty, struct window_pane *wp, unused va_list ap)
! 838: {
! 839: struct screen *s = wp->screen;
! 840: u_int i, j;
! 841:
! 842: tty_reset(tty);
! 843:
! 844: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
! 845:
! 846: for (j = 0; j < screen_size_y(s); j++) {
! 847: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
! 848: for (i = 0; i < screen_size_x(s); i++)
! 849: tty_putc(tty, 'E');
1.1 nicm 850: }
851: }
852:
853: void
854: tty_cmd_cell(struct tty *tty, struct window_pane *wp, va_list ap)
855: {
856: struct screen *s = wp->screen;
857: struct grid_cell *gc;
858: struct grid_utf8 *gu;
859:
860: gc = va_arg(ap, struct grid_cell *);
861: gu = va_arg(ap, struct grid_utf8 *);
862:
863: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
864:
865: tty_cell(tty, gc, gu);
866: }
867:
868: void
869: tty_cmd_raw(struct tty *tty, unused struct window_pane *wp, va_list ap)
870: {
871: u_char *buf;
872: size_t i, len;
873:
874: buf = va_arg(ap, u_char *);
875: len = va_arg(ap, size_t);
876:
877: for (i = 0; i < len; i++)
878: tty_putc(tty, buf[i]);
879: }
880:
881: void
882: tty_cell(
883: struct tty *tty, const struct grid_cell *gc, const struct grid_utf8 *gu)
884: {
885: u_int i;
886:
887: /* Skip last character if terminal is stupid. */
888: if (tty->term->flags & TERM_EARLYWRAP &&
889: tty->cy == tty->sy - 1 && tty->cx == tty->sx - 1)
890: return;
891:
892: /* If this is a padding character, do nothing. */
893: if (gc->flags & GRID_FLAG_PADDING)
894: return;
895:
896: /* Set the attributes. */
897: tty_attributes(tty, gc);
898:
899: /* If not UTF-8, write directly. */
900: if (!(gc->flags & GRID_FLAG_UTF8)) {
901: if (gc->data < 0x20 || gc->data == 0x7f)
902: return;
903: tty_putc(tty, gc->data);
904: return;
905: }
906:
907: /* If the terminal doesn't support UTF-8, write underscores. */
908: if (!(tty->flags & TTY_UTF8)) {
909: for (i = 0; i < gu->width; i++)
910: tty_putc(tty, '_');
911: return;
912: }
913:
914: /* Otherwise, write UTF-8. */
915: for (i = 0; i < UTF8_SIZE; i++) {
916: if (gu->data[i] == 0xff)
917: break;
918: tty_putc(tty, gu->data[i]);
919: }
920: }
921:
922: void
923: tty_reset(struct tty *tty)
924: {
925: struct grid_cell *gc = &tty->cell;
926:
927: if (memcmp(gc, &grid_default_cell, sizeof *gc) == 0)
928: return;
929:
930: if (tty_term_has(tty->term, TTYC_RMACS) && gc->attr & GRID_ATTR_CHARSET)
931: tty_putcode(tty, TTYC_RMACS);
932: tty_putcode(tty, TTYC_SGR0);
933: memcpy(gc, &grid_default_cell, sizeof *gc);
934: }
935:
936: void
937: tty_region(struct tty *tty, u_int rupper, u_int rlower, u_int oy)
938: {
939: if (!tty_term_has(tty->term, TTYC_CSR))
940: return;
941: if (tty->rlower != oy + rlower || tty->rupper != oy + rupper) {
942: tty->rlower = oy + rlower;
943: tty->rupper = oy + rupper;
944: tty->cx = 0;
945: tty->cy = 0;
946: tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
947: }
948: }
949:
950: void
951: tty_cursor(struct tty *tty, u_int cx, u_int cy, u_int ox, u_int oy)
952: {
953: if (ox + cx == 0 && tty->cx != 0 && tty->cy == oy + cy) {
954: tty->cx = 0;
955: tty_putc(tty, '\r');
956: } else if (tty->cx != ox + cx || tty->cy != oy + cy) {
957: tty->cx = ox + cx;
958: tty->cy = oy + cy;
959: tty_putcode2(tty, TTYC_CUP, tty->cy, tty->cx);
960: }
961: }
962:
963: void
964: tty_attributes(struct tty *tty, const struct grid_cell *gc)
965: {
966: struct grid_cell *tc = &tty->cell;
967: u_char changed;
968: u_int fg, bg;
969:
970: /* If any bits are being cleared, reset everything. */
971: if (tc->attr & ~gc->attr)
972: tty_reset(tty);
973:
974: /* Filter out attribute bits already set. */
975: changed = gc->attr & ~tc->attr;
976: tc->attr = gc->attr;
977:
978: /* Set the attributes. */
979: fg = gc->fg;
980: bg = gc->bg;
981: if (changed & GRID_ATTR_BRIGHT)
982: tty_putcode(tty, TTYC_BOLD);
983: if (changed & GRID_ATTR_DIM)
984: tty_putcode(tty, TTYC_DIM);
985: if (changed & GRID_ATTR_ITALICS)
986: tty_putcode(tty, TTYC_SMSO);
987: if (changed & GRID_ATTR_UNDERSCORE)
988: tty_putcode(tty, TTYC_SMUL);
989: if (changed & GRID_ATTR_BLINK)
990: tty_putcode(tty, TTYC_BLINK);
991: if (changed & GRID_ATTR_REVERSE) {
992: if (tty_term_has(tty->term, TTYC_REV))
993: tty_putcode(tty, TTYC_REV);
994: else if (tty_term_has(tty->term, TTYC_SMSO))
995: tty_putcode(tty, TTYC_SMSO);
996: }
997: if (changed & GRID_ATTR_HIDDEN)
998: tty_putcode(tty, TTYC_INVIS);
999: if (changed & GRID_ATTR_CHARSET)
1000: tty_putcode(tty, TTYC_SMACS);
1001:
1002: /* Set foreground colour. */
1003: if (fg != tc->fg ||
1004: (gc->flags & GRID_FLAG_FG256) != (tc->flags & GRID_FLAG_FG256)) {
1005: tty_attributes_fg(tty, gc);
1006: tc->fg = fg;
1007: }
1008:
1009: /* Set background colour. */
1010: if (bg != tc->bg ||
1011: (gc->flags & GRID_FLAG_BG256) != (tc->flags & GRID_FLAG_BG256)) {
1012: tty_attributes_bg(tty, gc);
1013: tc->bg = bg;
1014: }
1015: }
1016:
1017: int
1018: tty_try_256(struct tty *tty, u_char colour, const char *type)
1019: {
1020: char s[32];
1021:
1022: if (!(tty->term->flags & TERM_256COLOURS) &&
1023: !(tty->term_flags & TERM_256COLOURS))
1024: return (-1);
1025:
1026: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1027: tty_puts(tty, s);
1028: return (0);
1029: }
1030:
1031: int
1032: tty_try_88(struct tty *tty, u_char colour, const char *type)
1033: {
1034: char s[32];
1035:
1036: if (!(tty->term->flags & TERM_88COLOURS) &&
1037: !(tty->term_flags & TERM_88COLOURS))
1038: return (-1);
1039: colour = colour_256to88(colour);
1040:
1041: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1042: tty_puts(tty, s);
1043: return (0);
1044: }
1045:
1046: void
1047: tty_attributes_fg(struct tty *tty, const struct grid_cell *gc)
1048: {
1049: u_char fg;
1050:
1051: fg = gc->fg;
1052: if (gc->flags & GRID_FLAG_FG256) {
1053: if (tty_try_256(tty, fg, "38") == 0)
1054: return;
1055: if (tty_try_88(tty, fg, "38") == 0)
1056: return;
1057: fg = colour_256to16(fg);
1058: if (fg & 8) {
1059: fg &= 7;
1060: tty_putcode(tty, TTYC_BOLD);
1061: tty->cell.attr |= GRID_ATTR_BRIGHT;
1062: } else if (tty->cell.attr & GRID_ATTR_BRIGHT)
1063: tty_reset(tty);
1064: }
1065:
1066: if (fg == 8 &&
1067: !(tty->term->flags & TERM_HASDEFAULTS) &&
1068: !(tty->term_flags & TERM_HASDEFAULTS))
1069: fg = 7;
1070: if (fg == 8)
1071: tty_puts(tty, "\033[39m");
1072: else
1073: tty_putcode1(tty, TTYC_SETAF, fg);
1074: }
1075:
1076: void
1077: tty_attributes_bg(struct tty *tty, const struct grid_cell *gc)
1078: {
1079: u_char bg;
1080:
1081: bg = gc->bg;
1082: if (gc->flags & GRID_FLAG_BG256) {
1083: if (tty_try_256(tty, bg, "48") == 0)
1084: return;
1085: if (tty_try_88(tty, bg, "48") == 0)
1086: return;
1087: bg = colour_256to16(bg);
1088: if (bg & 8)
1089: bg &= 7;
1090: }
1091:
1092: if (bg == 8 &&
1093: !(tty->term->flags & TERM_HASDEFAULTS) &&
1094: !(tty->term_flags & TERM_HASDEFAULTS))
1095: bg = 0;
1096: if (bg == 8)
1097: tty_puts(tty, "\033[49m");
1098: else
1099: tty_putcode1(tty, TTYC_SETAB, bg);
1100: }