Annotation of src/usr.bin/tmux/tty.c, Revision 1.11
1.11 ! nicm 1: /* $OpenBSD: tty.c,v 1.10 2009/07/10 07:11:59 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);
1.11 ! nicm 54: void tty_cmd_utf8character(struct tty *, struct window_pane *, va_list);
1.1 nicm 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,
1.11 ! nicm 71: tty_cmd_utf8character,
1.1 nicm 72: tty_cmd_reverseindex,
73: };
74:
75: void
76: tty_init(struct tty *tty, char *path, char *term)
77: {
78: tty->path = xstrdup(path);
1.9 nicm 79: if (term == NULL || *term == '\0')
1.1 nicm 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)
1.9 nicm 101: fatal("fcntl failed");
1.1 nicm 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:
1.10 nicm 160: tty_putcode(tty, TTYC_SMCUP);
1.1 nicm 161:
162: tty_putcode(tty, TTYC_SMKX);
163: tty_putcode(tty, TTYC_ENACS);
164: tty_putcode(tty, TTYC_CLEAR);
165:
166: tty_putcode(tty, TTYC_CNORM);
167: if (tty_term_has(tty->term, TTYC_KMOUS))
168: tty_puts(tty, "\033[?1000l");
169:
170: memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
171:
172: tty->cx = UINT_MAX;
173: tty->cy = UINT_MAX;
174:
175: tty->rlower = UINT_MAX;
176: tty->rupper = UINT_MAX;
177:
178: tty->mode = MODE_CURSOR;
179: }
180:
181: void
182: tty_stop_tty(struct tty *tty)
183: {
184: struct winsize ws;
185:
186: /*
187: * Be flexible about error handling and try not kill the server just
188: * because the fd is invalid. Things like ssh -t can easily leave us
189: * with a dead tty.
190: */
191: if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
192: return;
193: if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
194: return;
195:
196: tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
197: tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
198: tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
199: tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
200: tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
201:
202: tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
203: if (tty_term_has(tty->term, TTYC_KMOUS))
204: tty_raw(tty, "\033[?1000l");
1.10 nicm 205:
206: tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
1.1 nicm 207: }
208:
1.2 nicm 209: #if 0
1.1 nicm 210: void
211: tty_detect_utf8(struct tty *tty)
212: {
213: struct pollfd pfd;
214: char buf[7];
215: size_t len;
216: ssize_t n;
217: int nfds;
218: struct termios tio, old_tio;
219: int what;
220:
221: if (tty->flags & TTY_UTF8)
222: return;
223:
224: /*
225: * If the terminal looks reasonably likely to support this, try to
226: * write a three-byte UTF-8 wide character to the terminal, then read
227: * the cursor position.
228: *
229: * XXX This entire function is a hack.
230: */
231:
232: /* Check if the terminal looks sort of vt100. */
233: if (strstr(tty_term_string(tty->term, TTYC_CLEAR), "[2J") == NULL ||
234: strstr(tty_term_string(tty->term, TTYC_CUP), "H") == NULL)
235: return;
236:
237: if (tcgetattr(tty->fd, &old_tio) != 0)
238: fatal("tcgetattr failed");
239: cfmakeraw(&tio);
240: if (tcsetattr(tty->fd, TCSANOW, &tio) != 0)
241: fatal("tcsetattr failed");
242:
243: what = 0;
244: if (ioctl(tty->fd, TIOCFLUSH, &what) != 0)
245: fatal("ioctl(TIOCFLUSH)");
246:
247: #define UTF8_TEST_DATA "\033[H\357\277\246\033[6n"
248: if (write(tty->fd, UTF8_TEST_DATA, (sizeof UTF8_TEST_DATA) - 1) == -1)
249: fatal("write failed");
250: #undef UTF8_TEST_DATA
251:
252: len = 0;
253: for (;;) {
254: pfd.fd = tty->fd;
255: pfd.events = POLLIN;
256:
257: nfds = poll(&pfd, 1, 500);
258: if (nfds == -1) {
259: if (errno == EAGAIN || errno == EINTR)
260: continue;
261: fatal("poll failed");
262: }
263: if (nfds == 0)
264: break;
265: if (pfd.revents & (POLLERR|POLLNVAL|POLLHUP))
266: break;
267: if (!(pfd.revents & POLLIN))
268: continue;
269:
270: if ((n = read(tty->fd, buf + len, 1)) != 1)
271: break;
272: buf[++len] = '\0';
273:
274: if (len == (sizeof buf) - 1) {
275: if (strcmp(buf, "\033[1;3R") == 0)
276: tty->flags |= TTY_UTF8;
277: break;
278: }
279: }
280:
281: if (tcsetattr(tty->fd, TCSANOW, &old_tio) != 0)
282: fatal("tcsetattr failed");
283: }
1.2 nicm 284: #endif
1.1 nicm 285:
286: void
287: tty_fill_acs(struct tty *tty)
288: {
289: const char *ptr;
290:
291: memset(tty->acs, 0, sizeof tty->acs);
292: if (!tty_term_has(tty->term, TTYC_ACSC))
293: return;
294:
295: ptr = tty_term_string(tty->term, TTYC_ACSC);
296: if (strlen(ptr) % 2 != 0)
297: return;
298: for (; *ptr != '\0'; ptr += 2)
299: tty->acs[(u_char) ptr[0]] = ptr[1];
300: }
301:
302: u_char
303: tty_get_acs(struct tty *tty, u_char ch)
304: {
305: if (tty->acs[ch] != '\0')
306: return (tty->acs[ch]);
307: return (ch);
308: }
309:
310: void
311: tty_close(struct tty *tty, int no_stop)
312: {
313: if (tty->fd == -1)
314: return;
315:
316: if (tty->log_fd != -1) {
317: close(tty->log_fd);
318: tty->log_fd = -1;
319: }
320:
321: if (!no_stop)
322: tty_stop_tty(tty);
323:
324: tty_term_free(tty->term);
325: tty_keys_free(tty);
326:
327: close(tty->fd);
328: tty->fd = -1;
329:
330: buffer_destroy(tty->in);
331: buffer_destroy(tty->out);
332: }
333:
334: void
335: tty_free(struct tty *tty, int no_stop)
336: {
337: tty_close(tty, no_stop);
338:
339: if (tty->path != NULL)
340: xfree(tty->path);
341: if (tty->termname != NULL)
342: xfree(tty->termname);
343: }
344:
345: void
346: tty_raw(struct tty *tty, const char *s)
347: {
348: write(tty->fd, s, strlen(s));
349: }
350:
351: void
352: tty_putcode(struct tty *tty, enum tty_code_code code)
353: {
354: tty_puts(tty, tty_term_string(tty->term, code));
355: }
356:
357: void
358: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
359: {
360: if (a < 0)
361: return;
362: tty_puts(tty, tty_term_string1(tty->term, code, a));
363: }
364:
365: void
366: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
367: {
368: if (a < 0 || b < 0)
369: return;
370: tty_puts(tty, tty_term_string2(tty->term, code, a, b));
371: }
372:
373: void
374: tty_puts(struct tty *tty, const char *s)
375: {
376: if (*s == '\0')
377: return;
378: buffer_write(tty->out, s, strlen(s));
379:
380: if (tty->log_fd != -1)
381: write(tty->log_fd, s, strlen(s));
382: }
383:
384: void
385: tty_putc(struct tty *tty, u_char ch)
386: {
387: u_int sx;
388:
389: if (tty->cell.attr & GRID_ATTR_CHARSET)
390: ch = tty_get_acs(tty, ch);
391: buffer_write8(tty->out, ch);
392:
393: if (ch >= 0x20 && ch != 0x7f) {
394: sx = tty->sx;
395: if (tty->term->flags & TERM_EARLYWRAP)
396: sx--;
397:
398: if (tty->cx == sx) {
399: tty->cx = 0;
400: tty->cy++;
401: } else
402: tty->cx++;
403: }
404:
405: if (tty->log_fd != -1)
406: write(tty->log_fd, &ch, 1);
407: }
408:
409: void
1.5 nicm 410: tty_pututf8(struct tty *tty, const struct grid_utf8 *gu)
411: {
412: u_int i, width;
413:
414: for (i = 0; i < UTF8_SIZE; i++) {
415: if (gu->data[i] == 0xff)
416: break;
417: buffer_write8(tty->out, gu->data[i]);
418: if (tty->log_fd != -1)
419: write(tty->log_fd, &gu->data[i], 1);
420: }
421:
422: width = utf8_width(gu->data);
423: tty->cx += width;
424: }
425:
426: void
1.1 nicm 427: tty_set_title(struct tty *tty, const char *title)
428: {
429: if (strstr(tty->termname, "xterm") == NULL &&
430: strstr(tty->termname, "rxvt") == NULL &&
431: strcmp(tty->termname, "screen") != 0)
432: return;
433:
434: tty_puts(tty, "\033]0;");
435: tty_puts(tty, title);
436: tty_putc(tty, '\007');
437: }
438:
439: void
440: tty_update_mode(struct tty *tty, int mode)
441: {
442: int changed;
443:
444: if (tty->flags & TTY_NOCURSOR)
445: mode &= ~MODE_CURSOR;
446:
447: changed = mode ^ tty->mode;
448: if (changed & MODE_CURSOR) {
449: if (mode & MODE_CURSOR)
450: tty_putcode(tty, TTYC_CNORM);
451: else
452: tty_putcode(tty, TTYC_CIVIS);
453: }
454: if (changed & MODE_MOUSE) {
455: if (mode & MODE_MOUSE)
456: tty_puts(tty, "\033[?1000h");
457: else
458: tty_puts(tty, "\033[?1000l");
459: }
460: tty->mode = mode;
461: }
462:
463: void
464: tty_emulate_repeat(
465: struct tty *tty, enum tty_code_code code, enum tty_code_code code1, u_int n)
466: {
467: if (tty_term_has(tty->term, code))
468: tty_putcode1(tty, code, n);
469: else {
470: while (n-- > 0)
471: tty_putcode(tty, code1);
472: }
473: }
474:
475: /*
476: * Redraw scroll region using data from screen (already updated). Used when
477: * CSR not supported, or window is a pane that doesn't take up the full
478: * width of the terminal.
479: */
480: void
481: tty_redraw_region(struct tty *tty, struct window_pane *wp)
482: {
483: struct screen *s = wp->screen;
484: u_int i;
485:
486: /*
487: * If region is >= 50% of the screen, just schedule a window redraw. In
488: * most cases, this is likely to be followed by some more scrolling -
489: * without this, the entire pane ends up being redrawn many times which
490: * can be much more data.
491: */
492: if (s->old_rupper - s->old_rlower >= screen_size_y(s) / 2) {
493: wp->flags |= PANE_REDRAW;
494: return;
495: }
496:
497: if (s->old_cy < s->old_rupper || s->old_cy > s->old_rlower) {
498: for (i = s->old_cy; i < screen_size_y(s); i++)
499: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
500: } else {
501: for (i = s->old_rupper; i <= s->old_rlower; i++)
502: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
503: }
504: }
505:
506: void
507: tty_draw_line(struct tty *tty, struct screen *s, u_int py, u_int ox, u_int oy)
508: {
509: const struct grid_cell *gc;
510: const struct grid_utf8 *gu;
511: u_int i, sx;
512:
513: sx = screen_size_x(s);
514: if (sx > s->grid->size[s->grid->hsize + py])
515: sx = s->grid->size[s->grid->hsize + py];
516: if (sx > tty->sx)
517: sx = tty->sx;
518:
519: tty_cursor(tty, 0, py, ox, oy);
520: for (i = 0; i < sx; i++) {
521: gc = grid_view_peek_cell(s->grid, i, py);
522:
523: gu = NULL;
524: if (gc->flags & GRID_FLAG_UTF8)
525: gu = grid_view_peek_utf8(s->grid, i, py);
526:
527: if (screen_check_selection(s, i, py)) {
528: s->sel.cell.data = gc->data;
529: tty_cell(tty, &s->sel.cell, gu);
530: } else
531: tty_cell(tty, gc, gu);
532: }
533:
534: if (sx >= tty->sx)
535: return;
536: tty_reset(tty);
537:
538: tty_cursor(tty, sx, py, ox, oy);
539: if (screen_size_x(s) >= tty->sx && tty_term_has(tty->term, TTYC_EL))
540: tty_putcode(tty, TTYC_EL);
541: else {
542: for (i = sx; i < screen_size_x(s); i++)
543: tty_putc(tty, ' ');
544: }
545: }
546:
547: void
548: tty_vwrite(
549: struct tty *tty, struct window_pane *wp, enum tty_cmd cmd, va_list ap)
550: {
551: if (tty->flags & TTY_FREEZE || tty->term == NULL)
552: return;
553: if (tty_cmds[cmd] != NULL)
554: tty_cmds[cmd](tty, wp, ap);
555: }
556:
557: void
558: tty_cmd_insertcharacter(struct tty *tty, struct window_pane *wp, va_list ap)
559: {
560: struct screen *s = wp->screen;
561: u_int ua;
562:
563: if (wp->xoff != 0 || screen_size_x(s) < tty->sx) {
564: tty_draw_line(tty, wp->screen, s->old_cy, wp->xoff, wp->yoff);
565: return;
566: }
567:
568: ua = va_arg(ap, u_int);
569:
570: tty_reset(tty);
571:
572: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
573: if (tty_term_has(tty->term, TTYC_ICH) ||
574: tty_term_has(tty->term, TTYC_ICH1))
575: tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ua);
576: else {
577: tty_putcode(tty, TTYC_SMIR);
578: while (ua-- > 0)
579: tty_putc(tty, ' ');
580: tty_putcode(tty, TTYC_RMIR);
581: }
582: }
583:
584: void
585: tty_cmd_deletecharacter(struct tty *tty, struct window_pane *wp, va_list ap)
586: {
587: struct screen *s = wp->screen;
588: u_int ua;
589:
590: if (wp->xoff != 0 || screen_size_x(s) < tty->sx) {
591: tty_draw_line(tty, wp->screen, s->old_cy, wp->xoff, wp->yoff);
592: return;
593: }
594:
595: ua = va_arg(ap, u_int);
596:
597: tty_reset(tty);
598:
599: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
600: tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ua);
601: }
602:
603: void
604: tty_cmd_insertline(struct tty *tty, struct window_pane *wp, va_list ap)
605: {
606: struct screen *s = wp->screen;
607: u_int ua;
608:
609: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
610: !tty_term_has(tty->term, TTYC_CSR)) {
611: tty_redraw_region(tty, wp);
612: return;
613: }
614:
615: ua = va_arg(ap, u_int);
616:
617: tty_reset(tty);
618:
619: tty_region(tty, s->old_rupper, s->old_rlower, wp->yoff);
620:
621: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
622: tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ua);
623: }
624:
625: void
626: tty_cmd_deleteline(struct tty *tty, struct window_pane *wp, va_list ap)
627: {
628: struct screen *s = wp->screen;
629: u_int ua;
630:
631: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
632: !tty_term_has(tty->term, TTYC_CSR)) {
633: tty_redraw_region(tty, wp);
634: return;
635: }
636:
637: ua = va_arg(ap, u_int);
638:
639: tty_reset(tty);
640:
641: tty_region(tty, s->old_rupper, s->old_rlower, wp->yoff);
642:
643: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
644: tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ua);
645: }
646:
647: void
648: tty_cmd_clearline(struct tty *tty, struct window_pane *wp, unused va_list ap)
649: {
650: struct screen *s = wp->screen;
651: u_int i;
652:
653: tty_reset(tty);
654:
655: tty_cursor(tty, 0, s->old_cy, wp->xoff, wp->yoff);
656: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
657: tty_term_has(tty->term, TTYC_EL)) {
658: tty_putcode(tty, TTYC_EL);
659: } else {
660: for (i = 0; i < screen_size_x(s); i++)
661: tty_putc(tty, ' ');
662: }
663: }
664:
665: void
666: tty_cmd_clearendofline(
667: struct tty *tty, struct window_pane *wp, unused va_list ap)
668: {
669: struct screen *s = wp->screen;
670: u_int i;
671:
672: tty_reset(tty);
673:
674: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
675: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
676: tty_term_has(tty->term, TTYC_EL))
677: tty_putcode(tty, TTYC_EL);
678: else {
679: for (i = s->old_cx; i < screen_size_x(s); i++)
680: tty_putc(tty, ' ');
681: }
682: }
683:
684: void
685: tty_cmd_clearstartofline(
686: struct tty *tty, struct window_pane *wp, unused va_list ap)
687: {
688: struct screen *s = wp->screen;
689: u_int i;
690:
691: tty_reset(tty);
692:
693: if (wp->xoff == 0 && tty_term_has(tty->term, TTYC_EL1)) {
694: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
695: tty_putcode(tty, TTYC_EL1);
696: } else {
697: tty_cursor(tty, 0, s->old_cy, wp->xoff, wp->yoff);
698: for (i = 0; i < s->old_cx + 1; i++)
699: tty_putc(tty, ' ');
700: }
701: }
702:
703: void
704: tty_cmd_reverseindex(struct tty *tty, struct window_pane *wp, unused va_list ap)
705: {
706: struct screen *s = wp->screen;
707:
708: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
709: !tty_term_has(tty->term, TTYC_CSR)) {
710: tty_redraw_region(tty, wp);
711: return;
712: }
713:
714: tty_reset(tty);
715:
716: tty_region(tty, s->old_rupper, s->old_rlower, wp->yoff);
717:
718: if (s->old_cy == s->old_rupper) {
719: tty_cursor(tty, s->old_cx, s->old_rupper, wp->xoff, wp->yoff);
720: tty_putcode(tty, TTYC_RI);
721: }
722: }
723:
724: void
725: tty_cmd_linefeed(struct tty *tty, struct window_pane *wp, unused va_list ap)
726: {
727: struct screen *s = wp->screen;
728:
729: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
730: !tty_term_has(tty->term, TTYC_CSR)) {
731: tty_redraw_region(tty, wp);
732: return;
733: }
734:
735: tty_reset(tty);
736:
737: tty_region(tty, s->old_rupper, s->old_rlower, wp->yoff);
738:
739: if (s->old_cy == s->old_rlower) {
740: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
741: tty_putc(tty, '\n');
742: }
743: }
744:
745: void
746: tty_cmd_clearendofscreen(
747: struct tty *tty, struct window_pane *wp, unused va_list ap)
748: {
749: struct screen *s = wp->screen;
1.6 nicm 750: u_int i, j;
1.1 nicm 751:
752: tty_reset(tty);
753:
754: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
755: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
756: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
757: tty_term_has(tty->term, TTYC_EL)) {
758: tty_putcode(tty, TTYC_EL);
759: if (s->old_cy != screen_size_y(s) - 1) {
760: tty_cursor(tty, 0, s->old_cy + 1, wp->xoff, wp->yoff);
761: for (i = s->old_cy + 1; i < screen_size_y(s); i++) {
762: tty_putcode(tty, TTYC_EL);
763: if (i == screen_size_y(s) - 1)
764: continue;
765: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
766: tty->cy++;
767: }
768: }
769: } else {
770: for (i = s->old_cx; i < screen_size_x(s); i++)
771: tty_putc(tty, ' ');
772: for (j = s->old_cy; j < screen_size_y(s); j++) {
773: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
774: for (i = 0; i < screen_size_x(s); i++)
775: tty_putc(tty, ' ');
776: }
777: }
778: }
779:
780: void
781: tty_cmd_clearstartofscreen(
782: struct tty *tty, struct window_pane *wp, unused va_list ap)
783: {
784: struct screen *s = wp->screen;
785: u_int i, j;
786:
787: tty_reset(tty);
788:
789: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
790: tty_cursor(tty, 0, 0, wp->xoff, wp->yoff);
791: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
792: tty_term_has(tty->term, TTYC_EL)) {
793: for (i = 0; i < s->old_cy; i++) {
794: tty_putcode(tty, TTYC_EL);
795: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
796: tty->cy++;
797: }
798: } else {
799: for (j = 0; j < s->old_cy; j++) {
800: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
801: for (i = 0; i < screen_size_x(s); i++)
802: tty_putc(tty, ' ');
803: }
804: }
1.3 nicm 805: for (i = 0; i <= s->old_cx; i++)
1.1 nicm 806: tty_putc(tty, ' ');
807: }
808:
809: void
810: tty_cmd_clearscreen(
811: struct tty *tty, struct window_pane *wp, unused va_list ap)
812: {
813: struct screen *s = wp->screen;
814: u_int i, j;
815:
816: tty_reset(tty);
817:
818: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
819: tty_cursor(tty, 0, 0, wp->xoff, wp->yoff);
820: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
821: tty_term_has(tty->term, TTYC_EL)) {
822: for (i = 0; i < screen_size_y(s); i++) {
823: tty_putcode(tty, TTYC_EL);
824: if (i != screen_size_y(s) - 1) {
825: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
826: tty->cy++;
827: }
828: }
829: } else {
830: for (j = 0; j < screen_size_y(s); j++) {
831: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
832: for (i = 0; i < screen_size_x(s); i++)
833: tty_putc(tty, ' ');
834: }
1.4 nicm 835: }
836: }
837:
838: void
839: tty_cmd_alignmenttest(
840: struct tty *tty, struct window_pane *wp, unused va_list ap)
841: {
842: struct screen *s = wp->screen;
843: u_int i, j;
844:
845: tty_reset(tty);
846:
847: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
848:
849: for (j = 0; j < screen_size_y(s); j++) {
850: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
851: for (i = 0; i < screen_size_x(s); i++)
852: tty_putc(tty, 'E');
1.1 nicm 853: }
854: }
855:
856: void
857: tty_cmd_cell(struct tty *tty, struct window_pane *wp, va_list ap)
858: {
859: struct screen *s = wp->screen;
860: struct grid_cell *gc;
861: struct grid_utf8 *gu;
862:
863: gc = va_arg(ap, struct grid_cell *);
864: gu = va_arg(ap, struct grid_utf8 *);
865:
866: tty_cursor(tty, s->old_cx, s->old_cy, wp->xoff, wp->yoff);
867:
868: tty_cell(tty, gc, gu);
869: }
870:
871: void
1.11 ! nicm 872: tty_cmd_utf8character(
! 873: struct tty *tty, unused struct window_pane *wp, va_list ap)
1.1 nicm 874: {
875: u_char *buf;
1.11 ! nicm 876: size_t i;
1.1 nicm 877:
878: buf = va_arg(ap, u_char *);
1.11 ! nicm 879:
! 880: for (i = 0; i < UTF8_SIZE; i++) {
! 881: if (buf[i] == 0xff)
! 882: break;
1.1 nicm 883: tty_putc(tty, buf[i]);
1.11 ! nicm 884: }
1.1 nicm 885: }
886:
887: void
888: tty_cell(
889: struct tty *tty, const struct grid_cell *gc, const struct grid_utf8 *gu)
890: {
891: u_int i;
892:
893: /* Skip last character if terminal is stupid. */
894: if (tty->term->flags & TERM_EARLYWRAP &&
895: tty->cy == tty->sy - 1 && tty->cx == tty->sx - 1)
896: return;
897:
898: /* If this is a padding character, do nothing. */
899: if (gc->flags & GRID_FLAG_PADDING)
900: return;
901:
902: /* Set the attributes. */
903: tty_attributes(tty, gc);
904:
905: /* If not UTF-8, write directly. */
906: if (!(gc->flags & GRID_FLAG_UTF8)) {
907: if (gc->data < 0x20 || gc->data == 0x7f)
908: return;
909: tty_putc(tty, gc->data);
910: return;
911: }
912:
913: /* If the terminal doesn't support UTF-8, write underscores. */
914: if (!(tty->flags & TTY_UTF8)) {
915: for (i = 0; i < gu->width; i++)
916: tty_putc(tty, '_');
917: return;
918: }
919:
920: /* Otherwise, write UTF-8. */
1.5 nicm 921: tty_pututf8(tty, gu);
1.1 nicm 922: }
923:
924: void
925: tty_reset(struct tty *tty)
926: {
927: struct grid_cell *gc = &tty->cell;
928:
929: if (memcmp(gc, &grid_default_cell, sizeof *gc) == 0)
930: return;
931:
932: if (tty_term_has(tty->term, TTYC_RMACS) && gc->attr & GRID_ATTR_CHARSET)
933: tty_putcode(tty, TTYC_RMACS);
934: tty_putcode(tty, TTYC_SGR0);
935: memcpy(gc, &grid_default_cell, sizeof *gc);
936: }
937:
938: void
939: tty_region(struct tty *tty, u_int rupper, u_int rlower, u_int oy)
940: {
941: if (!tty_term_has(tty->term, TTYC_CSR))
942: return;
943: if (tty->rlower != oy + rlower || tty->rupper != oy + rupper) {
944: tty->rlower = oy + rlower;
945: tty->rupper = oy + rupper;
946: tty->cx = 0;
947: tty->cy = 0;
948: tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
949: }
950: }
951:
952: void
953: tty_cursor(struct tty *tty, u_int cx, u_int cy, u_int ox, u_int oy)
954: {
955: if (ox + cx == 0 && tty->cx != 0 && tty->cy == oy + cy) {
956: tty->cx = 0;
957: tty_putc(tty, '\r');
958: } else if (tty->cx != ox + cx || tty->cy != oy + cy) {
959: tty->cx = ox + cx;
960: tty->cy = oy + cy;
961: tty_putcode2(tty, TTYC_CUP, tty->cy, tty->cx);
962: }
963: }
964:
965: void
966: tty_attributes(struct tty *tty, const struct grid_cell *gc)
967: {
968: struct grid_cell *tc = &tty->cell;
969: u_char changed;
970: u_int fg, bg;
971:
972: /* If any bits are being cleared, reset everything. */
973: if (tc->attr & ~gc->attr)
974: tty_reset(tty);
975:
976: /* Filter out attribute bits already set. */
977: changed = gc->attr & ~tc->attr;
978: tc->attr = gc->attr;
979:
980: /* Set the attributes. */
981: fg = gc->fg;
982: bg = gc->bg;
983: if (changed & GRID_ATTR_BRIGHT)
984: tty_putcode(tty, TTYC_BOLD);
985: if (changed & GRID_ATTR_DIM)
986: tty_putcode(tty, TTYC_DIM);
987: if (changed & GRID_ATTR_ITALICS)
988: tty_putcode(tty, TTYC_SMSO);
989: if (changed & GRID_ATTR_UNDERSCORE)
990: tty_putcode(tty, TTYC_SMUL);
991: if (changed & GRID_ATTR_BLINK)
992: tty_putcode(tty, TTYC_BLINK);
993: if (changed & GRID_ATTR_REVERSE) {
994: if (tty_term_has(tty->term, TTYC_REV))
995: tty_putcode(tty, TTYC_REV);
996: else if (tty_term_has(tty->term, TTYC_SMSO))
997: tty_putcode(tty, TTYC_SMSO);
998: }
999: if (changed & GRID_ATTR_HIDDEN)
1000: tty_putcode(tty, TTYC_INVIS);
1001: if (changed & GRID_ATTR_CHARSET)
1002: tty_putcode(tty, TTYC_SMACS);
1003:
1004: /* Set foreground colour. */
1005: if (fg != tc->fg ||
1006: (gc->flags & GRID_FLAG_FG256) != (tc->flags & GRID_FLAG_FG256)) {
1007: tty_attributes_fg(tty, gc);
1008: tc->fg = fg;
1.8 nicm 1009: tc->flags &= ~GRID_FLAG_FG256;
1010: tc->flags |= gc->flags & GRID_FLAG_FG256;
1.1 nicm 1011: }
1012:
1013: /* Set background colour. */
1014: if (bg != tc->bg ||
1015: (gc->flags & GRID_FLAG_BG256) != (tc->flags & GRID_FLAG_BG256)) {
1016: tty_attributes_bg(tty, gc);
1017: tc->bg = bg;
1.8 nicm 1018: tc->flags &= ~GRID_FLAG_BG256;
1019: tc->flags |= gc->flags & GRID_FLAG_BG256;
1.1 nicm 1020: }
1021: }
1022:
1023: int
1024: tty_try_256(struct tty *tty, u_char colour, const char *type)
1025: {
1026: char s[32];
1027:
1028: if (!(tty->term->flags & TERM_256COLOURS) &&
1029: !(tty->term_flags & TERM_256COLOURS))
1030: return (-1);
1031:
1032: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1033: tty_puts(tty, s);
1034: return (0);
1035: }
1036:
1037: int
1038: tty_try_88(struct tty *tty, u_char colour, const char *type)
1039: {
1040: char s[32];
1041:
1042: if (!(tty->term->flags & TERM_88COLOURS) &&
1043: !(tty->term_flags & TERM_88COLOURS))
1044: return (-1);
1045: colour = colour_256to88(colour);
1046:
1047: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1048: tty_puts(tty, s);
1049: return (0);
1050: }
1051:
1052: void
1053: tty_attributes_fg(struct tty *tty, const struct grid_cell *gc)
1054: {
1055: u_char fg;
1056:
1057: fg = gc->fg;
1058: if (gc->flags & GRID_FLAG_FG256) {
1059: if (tty_try_256(tty, fg, "38") == 0)
1060: return;
1061: if (tty_try_88(tty, fg, "38") == 0)
1062: return;
1063: fg = colour_256to16(fg);
1064: if (fg & 8) {
1065: fg &= 7;
1066: tty_putcode(tty, TTYC_BOLD);
1067: tty->cell.attr |= GRID_ATTR_BRIGHT;
1068: } else if (tty->cell.attr & GRID_ATTR_BRIGHT)
1069: tty_reset(tty);
1070: }
1071:
1072: if (fg == 8 &&
1073: !(tty->term->flags & TERM_HASDEFAULTS) &&
1074: !(tty->term_flags & TERM_HASDEFAULTS))
1075: fg = 7;
1076: if (fg == 8)
1077: tty_puts(tty, "\033[39m");
1078: else
1079: tty_putcode1(tty, TTYC_SETAF, fg);
1080: }
1081:
1082: void
1083: tty_attributes_bg(struct tty *tty, const struct grid_cell *gc)
1084: {
1085: u_char bg;
1086:
1087: bg = gc->bg;
1088: if (gc->flags & GRID_FLAG_BG256) {
1089: if (tty_try_256(tty, bg, "48") == 0)
1090: return;
1091: if (tty_try_88(tty, bg, "48") == 0)
1092: return;
1093: bg = colour_256to16(bg);
1094: if (bg & 8)
1095: bg &= 7;
1096: }
1097:
1098: if (bg == 8 &&
1099: !(tty->term->flags & TERM_HASDEFAULTS) &&
1100: !(tty->term_flags & TERM_HASDEFAULTS))
1101: bg = 0;
1102: if (bg == 8)
1103: tty_puts(tty, "\033[49m");
1104: else
1105: tty_putcode1(tty, TTYC_SETAB, bg);
1106: }
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