Annotation of src/usr.bin/tmux/tty.c, Revision 1.18
1.18 ! nicm 1: /* $OpenBSD: tty.c,v 1.17 2009/08/03 14:10:54 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:
1.14 nicm 41: void tty_redraw_region(struct tty *, struct tty_ctx *);
1.13 nicm 42: void tty_emulate_repeat(
43: struct tty *, enum tty_code_code, enum tty_code_code, u_int);
1.14 nicm 44: void tty_cell(struct tty *,
45: const struct grid_cell *, const struct grid_utf8 *);
1.1 nicm 46:
47: void
48: tty_init(struct tty *tty, char *path, char *term)
49: {
50: tty->path = xstrdup(path);
1.9 nicm 51: if (term == NULL || *term == '\0')
1.1 nicm 52: tty->termname = xstrdup("unknown");
53: else
54: tty->termname = xstrdup(term);
55: tty->flags = 0;
56: tty->term_flags = 0;
57: }
58:
59: int
1.17 nicm 60: tty_open(struct tty *tty, const char *overrides, char **cause)
1.1 nicm 61: {
62: int mode;
63:
64: tty->fd = open(tty->path, O_RDWR|O_NONBLOCK);
65: if (tty->fd == -1) {
66: xasprintf(cause, "%s: %s", tty->path, strerror(errno));
67: return (-1);
68: }
69:
70: if ((mode = fcntl(tty->fd, F_GETFL)) == -1)
71: fatal("fcntl failed");
72: if (fcntl(tty->fd, F_SETFL, mode|O_NONBLOCK) == -1)
1.9 nicm 73: fatal("fcntl failed");
1.1 nicm 74: if (fcntl(tty->fd, F_SETFD, FD_CLOEXEC) == -1)
75: fatal("fcntl failed");
76:
77: if (debug_level > 3)
78: tty->log_fd = open("tmux.out", O_WRONLY|O_CREAT|O_TRUNC, 0644);
79: else
80: tty->log_fd = -1;
81:
1.17 nicm 82: tty->term = tty_term_find(tty->termname, tty->fd, overrides, cause);
83: if (tty->term == NULL)
1.1 nicm 84: goto error;
85:
86: tty->in = buffer_create(BUFSIZ);
87: tty->out = buffer_create(BUFSIZ);
88:
89: tty->flags &= TTY_UTF8;
90:
91: tty_start_tty(tty);
92:
93: tty_keys_init(tty);
94:
95: tty_fill_acs(tty);
96:
97: return (0);
98:
99: error:
100: close(tty->fd);
101: tty->fd = -1;
102:
103: return (-1);
104: }
105:
106: void
107: tty_start_tty(struct tty *tty)
108: {
109: struct termios tio;
110: int what;
111:
1.2 nicm 112: #if 0
1.1 nicm 113: tty_detect_utf8(tty);
1.2 nicm 114: #endif
1.1 nicm 115:
116: if (tcgetattr(tty->fd, &tty->tio) != 0)
117: fatal("tcgetattr failed");
118: memcpy(&tio, &tty->tio, sizeof tio);
119: tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
120: tio.c_iflag |= IGNBRK;
121: tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
122: tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
123: ECHOPRT|ECHOKE|ECHOCTL|ISIG);
124: tio.c_cc[VMIN] = 1;
125: tio.c_cc[VTIME] = 0;
126: if (tcsetattr(tty->fd, TCSANOW, &tio) != 0)
127: fatal("tcsetattr failed");
128:
129: what = 0;
130: if (ioctl(tty->fd, TIOCFLUSH, &what) != 0)
131: fatal("ioctl(TIOCFLUSH)");
132:
1.10 nicm 133: tty_putcode(tty, TTYC_SMCUP);
1.1 nicm 134:
135: tty_putcode(tty, TTYC_SMKX);
136: tty_putcode(tty, TTYC_ENACS);
137: tty_putcode(tty, TTYC_CLEAR);
138:
139: tty_putcode(tty, TTYC_CNORM);
140: if (tty_term_has(tty->term, TTYC_KMOUS))
141: tty_puts(tty, "\033[?1000l");
142:
143: memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
144:
145: tty->cx = UINT_MAX;
146: tty->cy = UINT_MAX;
147:
148: tty->rlower = UINT_MAX;
149: tty->rupper = UINT_MAX;
150:
151: tty->mode = MODE_CURSOR;
152: }
153:
154: void
155: tty_stop_tty(struct tty *tty)
156: {
157: struct winsize ws;
158:
159: /*
160: * Be flexible about error handling and try not kill the server just
161: * because the fd is invalid. Things like ssh -t can easily leave us
162: * with a dead tty.
163: */
164: if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
165: return;
166: if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
167: return;
168:
169: tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
170: tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
171: tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
172: tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
173: tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
174:
175: tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
176: if (tty_term_has(tty->term, TTYC_KMOUS))
177: tty_raw(tty, "\033[?1000l");
1.10 nicm 178:
179: tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
1.1 nicm 180: }
181:
1.2 nicm 182: #if 0
1.1 nicm 183: void
184: tty_detect_utf8(struct tty *tty)
185: {
186: struct pollfd pfd;
187: char buf[7];
188: size_t len;
189: ssize_t n;
190: int nfds;
191: struct termios tio, old_tio;
192: int what;
193:
194: if (tty->flags & TTY_UTF8)
195: return;
196:
197: /*
198: * If the terminal looks reasonably likely to support this, try to
199: * write a three-byte UTF-8 wide character to the terminal, then read
200: * the cursor position.
201: *
202: * XXX This entire function is a hack.
203: */
204:
205: /* Check if the terminal looks sort of vt100. */
206: if (strstr(tty_term_string(tty->term, TTYC_CLEAR), "[2J") == NULL ||
207: strstr(tty_term_string(tty->term, TTYC_CUP), "H") == NULL)
208: return;
209:
210: if (tcgetattr(tty->fd, &old_tio) != 0)
211: fatal("tcgetattr failed");
212: cfmakeraw(&tio);
213: if (tcsetattr(tty->fd, TCSANOW, &tio) != 0)
214: fatal("tcsetattr failed");
215:
216: what = 0;
217: if (ioctl(tty->fd, TIOCFLUSH, &what) != 0)
218: fatal("ioctl(TIOCFLUSH)");
219:
220: #define UTF8_TEST_DATA "\033[H\357\277\246\033[6n"
221: if (write(tty->fd, UTF8_TEST_DATA, (sizeof UTF8_TEST_DATA) - 1) == -1)
222: fatal("write failed");
223: #undef UTF8_TEST_DATA
224:
225: len = 0;
226: for (;;) {
227: pfd.fd = tty->fd;
228: pfd.events = POLLIN;
229:
230: nfds = poll(&pfd, 1, 500);
231: if (nfds == -1) {
232: if (errno == EAGAIN || errno == EINTR)
233: continue;
234: fatal("poll failed");
235: }
236: if (nfds == 0)
237: break;
238: if (pfd.revents & (POLLERR|POLLNVAL|POLLHUP))
239: break;
240: if (!(pfd.revents & POLLIN))
241: continue;
242:
243: if ((n = read(tty->fd, buf + len, 1)) != 1)
244: break;
245: buf[++len] = '\0';
246:
247: if (len == (sizeof buf) - 1) {
248: if (strcmp(buf, "\033[1;3R") == 0)
249: tty->flags |= TTY_UTF8;
250: break;
251: }
252: }
253:
254: if (tcsetattr(tty->fd, TCSANOW, &old_tio) != 0)
255: fatal("tcsetattr failed");
256: }
1.2 nicm 257: #endif
1.1 nicm 258:
259: void
260: tty_fill_acs(struct tty *tty)
261: {
262: const char *ptr;
263:
264: memset(tty->acs, 0, sizeof tty->acs);
265: if (!tty_term_has(tty->term, TTYC_ACSC))
266: return;
267:
268: ptr = tty_term_string(tty->term, TTYC_ACSC);
269: if (strlen(ptr) % 2 != 0)
270: return;
271: for (; *ptr != '\0'; ptr += 2)
272: tty->acs[(u_char) ptr[0]] = ptr[1];
273: }
274:
275: u_char
276: tty_get_acs(struct tty *tty, u_char ch)
277: {
278: if (tty->acs[ch] != '\0')
279: return (tty->acs[ch]);
280: return (ch);
281: }
282:
283: void
284: tty_close(struct tty *tty, int no_stop)
285: {
286: if (tty->fd == -1)
287: return;
288:
289: if (tty->log_fd != -1) {
290: close(tty->log_fd);
291: tty->log_fd = -1;
292: }
293:
294: if (!no_stop)
295: tty_stop_tty(tty);
296:
297: tty_term_free(tty->term);
298: tty_keys_free(tty);
299:
300: close(tty->fd);
301: tty->fd = -1;
302:
303: buffer_destroy(tty->in);
304: buffer_destroy(tty->out);
305: }
306:
307: void
308: tty_free(struct tty *tty, int no_stop)
309: {
310: tty_close(tty, no_stop);
311:
312: if (tty->path != NULL)
313: xfree(tty->path);
314: if (tty->termname != NULL)
315: xfree(tty->termname);
316: }
317:
318: void
319: tty_raw(struct tty *tty, const char *s)
320: {
321: write(tty->fd, s, strlen(s));
322: }
323:
324: void
325: tty_putcode(struct tty *tty, enum tty_code_code code)
326: {
327: tty_puts(tty, tty_term_string(tty->term, code));
328: }
329:
330: void
331: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
332: {
333: if (a < 0)
334: return;
335: tty_puts(tty, tty_term_string1(tty->term, code, a));
336: }
337:
338: void
339: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
340: {
341: if (a < 0 || b < 0)
342: return;
343: tty_puts(tty, tty_term_string2(tty->term, code, a, b));
344: }
345:
346: void
347: tty_puts(struct tty *tty, const char *s)
348: {
349: if (*s == '\0')
350: return;
351: buffer_write(tty->out, s, strlen(s));
352:
353: if (tty->log_fd != -1)
354: write(tty->log_fd, s, strlen(s));
355: }
356:
357: void
358: tty_putc(struct tty *tty, u_char ch)
359: {
360: u_int sx;
361:
362: if (tty->cell.attr & GRID_ATTR_CHARSET)
363: ch = tty_get_acs(tty, ch);
364: buffer_write8(tty->out, ch);
365:
366: if (ch >= 0x20 && ch != 0x7f) {
367: sx = tty->sx;
368: if (tty->term->flags & TERM_EARLYWRAP)
369: sx--;
370:
371: if (tty->cx == sx) {
372: tty->cx = 0;
373: tty->cy++;
374: } else
375: tty->cx++;
376: }
377:
378: if (tty->log_fd != -1)
379: write(tty->log_fd, &ch, 1);
380: }
381:
382: void
1.5 nicm 383: tty_pututf8(struct tty *tty, const struct grid_utf8 *gu)
384: {
385: u_int i, width;
386:
387: for (i = 0; i < UTF8_SIZE; i++) {
388: if (gu->data[i] == 0xff)
389: break;
390: buffer_write8(tty->out, gu->data[i]);
391: if (tty->log_fd != -1)
392: write(tty->log_fd, &gu->data[i], 1);
393: }
394:
395: width = utf8_width(gu->data);
396: tty->cx += width;
397: }
398:
399: void
1.1 nicm 400: tty_set_title(struct tty *tty, const char *title)
401: {
402: if (strstr(tty->termname, "xterm") == NULL &&
403: strstr(tty->termname, "rxvt") == NULL &&
404: strcmp(tty->termname, "screen") != 0)
405: return;
406:
407: tty_puts(tty, "\033]0;");
408: tty_puts(tty, title);
409: tty_putc(tty, '\007');
410: }
411:
412: void
413: tty_update_mode(struct tty *tty, int mode)
414: {
415: int changed;
416:
417: if (tty->flags & TTY_NOCURSOR)
418: mode &= ~MODE_CURSOR;
419:
420: changed = mode ^ tty->mode;
421: if (changed & MODE_CURSOR) {
422: if (mode & MODE_CURSOR)
423: tty_putcode(tty, TTYC_CNORM);
424: else
425: tty_putcode(tty, TTYC_CIVIS);
426: }
427: if (changed & MODE_MOUSE) {
428: if (mode & MODE_MOUSE)
429: tty_puts(tty, "\033[?1000h");
430: else
431: tty_puts(tty, "\033[?1000l");
432: }
433: tty->mode = mode;
434: }
435:
436: void
437: tty_emulate_repeat(
438: struct tty *tty, enum tty_code_code code, enum tty_code_code code1, u_int n)
439: {
440: if (tty_term_has(tty->term, code))
441: tty_putcode1(tty, code, n);
442: else {
443: while (n-- > 0)
444: tty_putcode(tty, code1);
445: }
446: }
447:
448: /*
449: * Redraw scroll region using data from screen (already updated). Used when
450: * CSR not supported, or window is a pane that doesn't take up the full
451: * width of the terminal.
452: */
453: void
1.14 nicm 454: tty_redraw_region(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 455: {
1.14 nicm 456: struct window_pane *wp = ctx->wp;
457: struct screen *s = wp->screen;
458: u_int i;
1.1 nicm 459:
460: /*
461: * If region is >= 50% of the screen, just schedule a window redraw. In
462: * most cases, this is likely to be followed by some more scrolling -
463: * without this, the entire pane ends up being redrawn many times which
464: * can be much more data.
465: */
1.14 nicm 466: if (ctx->orupper - ctx->orlower >= screen_size_y(s) / 2) {
1.1 nicm 467: wp->flags |= PANE_REDRAW;
468: return;
469: }
470:
1.14 nicm 471: if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
472: for (i = ctx->ocy; i < screen_size_y(s); i++)
1.1 nicm 473: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
474: } else {
1.14 nicm 475: for (i = ctx->orupper; i <= ctx->orlower; i++)
1.1 nicm 476: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
477: }
478: }
479:
480: void
481: tty_draw_line(struct tty *tty, struct screen *s, u_int py, u_int ox, u_int oy)
482: {
483: const struct grid_cell *gc;
1.16 nicm 484: struct grid_cell tmpgc;
1.1 nicm 485: const struct grid_utf8 *gu;
486: u_int i, sx;
487:
488: sx = screen_size_x(s);
489: if (sx > s->grid->size[s->grid->hsize + py])
490: sx = s->grid->size[s->grid->hsize + py];
491: if (sx > tty->sx)
492: sx = tty->sx;
493:
494: tty_cursor(tty, 0, py, ox, oy);
495: for (i = 0; i < sx; i++) {
496: gc = grid_view_peek_cell(s->grid, i, py);
497:
498: gu = NULL;
499: if (gc->flags & GRID_FLAG_UTF8)
500: gu = grid_view_peek_utf8(s->grid, i, py);
501:
502: if (screen_check_selection(s, i, py)) {
1.16 nicm 503: memcpy(&tmpgc, &s->sel.cell, sizeof tmpgc);
504: tmpgc.data = gc->data;
505: tmpgc.flags = gc->flags;
506: tty_cell(tty, &tmpgc, gu);
1.1 nicm 507: } else
508: tty_cell(tty, gc, gu);
509: }
510:
511: if (sx >= tty->sx)
512: return;
513: tty_reset(tty);
514:
515: tty_cursor(tty, sx, py, ox, oy);
516: if (screen_size_x(s) >= tty->sx && tty_term_has(tty->term, TTYC_EL))
517: tty_putcode(tty, TTYC_EL);
518: else {
519: for (i = sx; i < screen_size_x(s); i++)
520: tty_putc(tty, ' ');
1.15 nicm 521: }
522: }
523:
524: void
525: tty_write(void (*cmdfn)(struct tty *, struct tty_ctx *), struct tty_ctx *ctx)
526: {
527: struct window_pane *wp = ctx->wp;
528: struct client *c;
529: u_int i;
530:
531: if (wp == NULL)
532: return;
533:
534: if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
535: return;
536: if (wp->window->flags & WINDOW_HIDDEN || !window_pane_visible(wp))
537: return;
538:
539: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
540: c = ARRAY_ITEM(&clients, i);
541: if (c == NULL || c->session == NULL)
542: continue;
543: if (c->flags & CLIENT_SUSPENDED)
544: continue;
545:
546: if (c->session->curw->window == wp->window) {
547: if (c->tty.flags & TTY_FREEZE || c->tty.term == NULL)
548: continue;
549: tty_update_mode(&c->tty, c->tty.mode & ~MODE_CURSOR);
550: cmdfn(&c->tty, ctx);
551: }
1.1 nicm 552: }
553: }
554:
555: void
1.12 nicm 556: tty_cmd_insertcharacter(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 557: {
1.12 nicm 558: struct window_pane *wp = ctx->wp;
559: struct screen *s = wp->screen;
1.1 nicm 560:
561: if (wp->xoff != 0 || screen_size_x(s) < tty->sx) {
1.14 nicm 562: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 563: return;
564: }
565:
566: tty_reset(tty);
567:
1.14 nicm 568: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 569: if (tty_term_has(tty->term, TTYC_ICH) ||
570: tty_term_has(tty->term, TTYC_ICH1))
1.12 nicm 571: tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
1.1 nicm 572: else {
573: tty_putcode(tty, TTYC_SMIR);
1.12 nicm 574: while (ctx->num-- > 0)
1.1 nicm 575: tty_putc(tty, ' ');
576: tty_putcode(tty, TTYC_RMIR);
577: }
578: }
579:
580: void
1.12 nicm 581: tty_cmd_deletecharacter(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 582: {
1.12 nicm 583: struct window_pane *wp = ctx->wp;
584: struct screen *s = wp->screen;
1.1 nicm 585:
586: if (wp->xoff != 0 || screen_size_x(s) < tty->sx) {
1.14 nicm 587: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 588: return;
589: }
590:
591: tty_reset(tty);
592:
1.14 nicm 593: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.12 nicm 594: tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
1.1 nicm 595: }
596:
597: void
1.12 nicm 598: tty_cmd_insertline(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 599: {
1.12 nicm 600: struct window_pane *wp = ctx->wp;
601: struct screen *s = wp->screen;
1.1 nicm 602:
603: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
604: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 605: tty_redraw_region(tty, ctx);
1.1 nicm 606: return;
607: }
608:
609: tty_reset(tty);
610:
1.14 nicm 611: tty_region(tty, ctx->orupper, ctx->orlower, wp->yoff);
1.1 nicm 612:
1.14 nicm 613: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.12 nicm 614: tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
1.1 nicm 615: }
616:
617: void
1.12 nicm 618: tty_cmd_deleteline(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 619: {
1.12 nicm 620: struct window_pane *wp = ctx->wp;
621: struct screen *s = wp->screen;
1.1 nicm 622:
623: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
624: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 625: tty_redraw_region(tty, ctx);
1.1 nicm 626: return;
627: }
628:
629: tty_reset(tty);
630:
1.14 nicm 631: tty_region(tty, ctx->orupper, ctx->orlower, wp->yoff);
1.1 nicm 632:
1.14 nicm 633: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.12 nicm 634: tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
1.1 nicm 635: }
636:
637: void
1.12 nicm 638: tty_cmd_clearline(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 639: {
1.12 nicm 640: struct window_pane *wp = ctx->wp;
641: struct screen *s = wp->screen;
642: u_int i;
1.1 nicm 643:
644: tty_reset(tty);
645:
1.14 nicm 646: tty_cursor(tty, 0, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 647: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
648: tty_term_has(tty->term, TTYC_EL)) {
649: tty_putcode(tty, TTYC_EL);
650: } else {
651: for (i = 0; i < screen_size_x(s); i++)
652: tty_putc(tty, ' ');
653: }
654: }
655:
656: void
1.12 nicm 657: tty_cmd_clearendofline(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 658: {
1.12 nicm 659: struct window_pane *wp = ctx->wp;
660: struct screen *s = wp->screen;
661: u_int i;
1.1 nicm 662:
663: tty_reset(tty);
664:
1.14 nicm 665: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 666: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
667: tty_term_has(tty->term, TTYC_EL))
668: tty_putcode(tty, TTYC_EL);
669: else {
1.14 nicm 670: for (i = ctx->ocx; i < screen_size_x(s); i++)
1.1 nicm 671: tty_putc(tty, ' ');
672: }
673: }
674:
675: void
1.12 nicm 676: tty_cmd_clearstartofline(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 677: {
1.12 nicm 678: struct window_pane *wp = ctx->wp;
679: u_int i;
1.1 nicm 680:
681: tty_reset(tty);
682:
683: if (wp->xoff == 0 && tty_term_has(tty->term, TTYC_EL1)) {
1.14 nicm 684: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 685: tty_putcode(tty, TTYC_EL1);
686: } else {
1.14 nicm 687: tty_cursor(tty, 0, ctx->ocy, wp->xoff, wp->yoff);
688: for (i = 0; i < ctx->ocx + 1; i++)
1.1 nicm 689: tty_putc(tty, ' ');
690: }
691: }
692:
693: void
1.12 nicm 694: tty_cmd_reverseindex(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 695: {
1.12 nicm 696: struct window_pane *wp = ctx->wp;
697: struct screen *s = wp->screen;
1.1 nicm 698:
699: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
700: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 701: tty_redraw_region(tty, ctx);
1.1 nicm 702: return;
703: }
704:
705: tty_reset(tty);
706:
1.14 nicm 707: tty_region(tty, ctx->orupper, ctx->orlower, wp->yoff);
1.1 nicm 708:
1.14 nicm 709: if (ctx->ocy == ctx->orupper) {
710: tty_cursor(tty, ctx->ocx, ctx->orupper, wp->xoff, wp->yoff);
1.1 nicm 711: tty_putcode(tty, TTYC_RI);
712: }
713: }
714:
715: void
1.12 nicm 716: tty_cmd_linefeed(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 717: {
1.12 nicm 718: struct window_pane *wp = ctx->wp;
719: struct screen *s = wp->screen;
1.1 nicm 720:
721: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
722: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 723: tty_redraw_region(tty, ctx);
1.1 nicm 724: return;
725: }
726:
727: tty_reset(tty);
728:
1.14 nicm 729: tty_region(tty, ctx->orupper, ctx->orlower, wp->yoff);
1.1 nicm 730:
1.14 nicm 731: if (ctx->ocy == ctx->orlower) {
732: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 733: tty_putc(tty, '\n');
734: }
735: }
736:
737: void
1.12 nicm 738: tty_cmd_clearendofscreen(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 739: {
1.12 nicm 740: struct window_pane *wp = ctx->wp;
741: struct screen *s = wp->screen;
742: u_int i, j;
1.1 nicm 743:
744: tty_reset(tty);
745:
746: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
1.14 nicm 747: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 748: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
749: tty_term_has(tty->term, TTYC_EL)) {
750: tty_putcode(tty, TTYC_EL);
1.14 nicm 751: if (ctx->ocy != screen_size_y(s) - 1) {
752: tty_cursor(tty, 0, ctx->ocy + 1, wp->xoff, wp->yoff);
753: for (i = ctx->ocy + 1; i < screen_size_y(s); i++) {
1.1 nicm 754: tty_putcode(tty, TTYC_EL);
755: if (i == screen_size_y(s) - 1)
756: continue;
757: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
758: tty->cy++;
759: }
760: }
761: } else {
1.14 nicm 762: for (i = ctx->ocx; i < screen_size_x(s); i++)
1.1 nicm 763: tty_putc(tty, ' ');
1.14 nicm 764: for (j = ctx->ocy; j < screen_size_y(s); j++) {
1.1 nicm 765: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
766: for (i = 0; i < screen_size_x(s); i++)
767: tty_putc(tty, ' ');
768: }
769: }
770: }
771:
772: void
1.12 nicm 773: tty_cmd_clearstartofscreen(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 774: {
1.12 nicm 775: struct window_pane *wp = ctx->wp;
776: struct screen *s = wp->screen;
777: u_int i, j;
1.1 nicm 778:
779: tty_reset(tty);
780:
781: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
782: tty_cursor(tty, 0, 0, wp->xoff, wp->yoff);
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++) {
1.1 nicm 792: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
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
1.12 nicm 802: tty_cmd_clearscreen(struct tty *tty, 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:
810: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
811: tty_cursor(tty, 0, 0, wp->xoff, wp->yoff);
812: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
813: tty_term_has(tty->term, TTYC_EL)) {
814: for (i = 0; i < screen_size_y(s); i++) {
815: tty_putcode(tty, TTYC_EL);
816: if (i != screen_size_y(s) - 1) {
817: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
818: tty->cy++;
819: }
820: }
821: } else {
822: for (j = 0; j < screen_size_y(s); j++) {
823: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
824: for (i = 0; i < screen_size_x(s); i++)
825: tty_putc(tty, ' ');
826: }
1.4 nicm 827: }
828: }
829:
830: void
1.12 nicm 831: tty_cmd_alignmenttest(struct tty *tty, struct tty_ctx *ctx)
1.4 nicm 832: {
1.12 nicm 833: struct window_pane *wp = ctx->wp;
834: struct screen *s = wp->screen;
835: u_int i, j;
1.4 nicm 836:
837: tty_reset(tty);
838:
839: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
840:
841: for (j = 0; j < screen_size_y(s); j++) {
842: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
843: for (i = 0; i < screen_size_x(s); i++)
844: tty_putc(tty, 'E');
1.1 nicm 845: }
846: }
847:
848: void
1.12 nicm 849: tty_cmd_cell(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 850: {
1.12 nicm 851: struct window_pane *wp = ctx->wp;
1.1 nicm 852:
1.14 nicm 853: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 854:
1.12 nicm 855: tty_cell(tty, ctx->cell, ctx->utf8);
1.1 nicm 856: }
857:
858: void
1.12 nicm 859: tty_cmd_utf8character(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 860: {
1.12 nicm 861: u_char *ptr = ctx->ptr;
1.11 nicm 862: size_t i;
1.1 nicm 863:
1.11 nicm 864: for (i = 0; i < UTF8_SIZE; i++) {
1.12 nicm 865: if (ptr[i] == 0xff)
1.11 nicm 866: break;
1.12 nicm 867: tty_putc(tty, ptr[i]);
1.11 nicm 868: }
1.1 nicm 869: }
870:
871: void
872: tty_cell(
873: struct tty *tty, const struct grid_cell *gc, const struct grid_utf8 *gu)
874: {
875: u_int i;
876:
877: /* Skip last character if terminal is stupid. */
878: if (tty->term->flags & TERM_EARLYWRAP &&
879: tty->cy == tty->sy - 1 && tty->cx == tty->sx - 1)
880: return;
881:
882: /* If this is a padding character, do nothing. */
883: if (gc->flags & GRID_FLAG_PADDING)
884: return;
885:
886: /* Set the attributes. */
887: tty_attributes(tty, gc);
888:
889: /* If not UTF-8, write directly. */
890: if (!(gc->flags & GRID_FLAG_UTF8)) {
891: if (gc->data < 0x20 || gc->data == 0x7f)
892: return;
893: tty_putc(tty, gc->data);
894: return;
895: }
896:
897: /* If the terminal doesn't support UTF-8, write underscores. */
898: if (!(tty->flags & TTY_UTF8)) {
899: for (i = 0; i < gu->width; i++)
900: tty_putc(tty, '_');
901: return;
902: }
903:
904: /* Otherwise, write UTF-8. */
1.5 nicm 905: tty_pututf8(tty, gu);
1.1 nicm 906: }
907:
908: void
909: tty_reset(struct tty *tty)
910: {
911: struct grid_cell *gc = &tty->cell;
912:
913: if (memcmp(gc, &grid_default_cell, sizeof *gc) == 0)
914: return;
915:
916: if (tty_term_has(tty->term, TTYC_RMACS) && gc->attr & GRID_ATTR_CHARSET)
917: tty_putcode(tty, TTYC_RMACS);
918: tty_putcode(tty, TTYC_SGR0);
919: memcpy(gc, &grid_default_cell, sizeof *gc);
920: }
921:
922: void
923: tty_region(struct tty *tty, u_int rupper, u_int rlower, u_int oy)
924: {
925: if (!tty_term_has(tty->term, TTYC_CSR))
926: return;
927: if (tty->rlower != oy + rlower || tty->rupper != oy + rupper) {
928: tty->rlower = oy + rlower;
929: tty->rupper = oy + rupper;
930: tty->cx = 0;
931: tty->cy = 0;
932: tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
933: }
934: }
935:
936: void
937: tty_cursor(struct tty *tty, u_int cx, u_int cy, u_int ox, u_int oy)
938: {
939: if (ox + cx == 0 && tty->cx != 0 && tty->cy == oy + cy) {
940: tty->cx = 0;
941: tty_putc(tty, '\r');
942: } else if (tty->cx != ox + cx || tty->cy != oy + cy) {
943: tty->cx = ox + cx;
944: tty->cy = oy + cy;
945: tty_putcode2(tty, TTYC_CUP, tty->cy, tty->cx);
946: }
947: }
948:
949: void
950: tty_attributes(struct tty *tty, const struct grid_cell *gc)
951: {
952: struct grid_cell *tc = &tty->cell;
953: u_char changed;
1.18 ! nicm 954: u_int fg, bg, attr;
! 955:
! 956: /*
! 957: * If no setab, try to use the reverse attribute as a best-effort for a
! 958: * non-default background. This is a bit of a hack but it doesn't do
! 959: * any serious harm and makes a couple of applications happier.
! 960: */
! 961: fg = gc->fg; bg = gc->bg; attr = gc->attr;
! 962: if (!tty_term_has(tty->term, TTYC_SETAB)) {
! 963: if (attr & GRID_ATTR_REVERSE) {
! 964: if (fg != 7 && fg != 8)
! 965: attr &= ~GRID_ATTR_REVERSE;
! 966: } else {
! 967: if (bg != 0 && bg != 8)
! 968: attr |= GRID_ATTR_REVERSE;
! 969: }
! 970: }
1.1 nicm 971:
972: /* If any bits are being cleared, reset everything. */
1.18 ! nicm 973: if (tc->attr & ~attr)
1.1 nicm 974: tty_reset(tty);
975:
976: /* Filter out attribute bits already set. */
1.18 ! nicm 977: changed = attr & ~tc->attr;
! 978: tc->attr = attr;
1.1 nicm 979:
980: /* Set the attributes. */
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;
1.8 nicm 1007: tc->flags &= ~GRID_FLAG_FG256;
1008: tc->flags |= gc->flags & GRID_FLAG_FG256;
1.1 nicm 1009: }
1010:
1011: /* Set background colour. */
1012: if (bg != tc->bg ||
1013: (gc->flags & GRID_FLAG_BG256) != (tc->flags & GRID_FLAG_BG256)) {
1014: tty_attributes_bg(tty, gc);
1015: tc->bg = bg;
1.8 nicm 1016: tc->flags &= ~GRID_FLAG_BG256;
1017: tc->flags |= gc->flags & GRID_FLAG_BG256;
1.1 nicm 1018: }
1019: }
1020:
1021: int
1022: tty_try_256(struct tty *tty, u_char colour, const char *type)
1023: {
1024: char s[32];
1025:
1026: if (!(tty->term->flags & TERM_256COLOURS) &&
1027: !(tty->term_flags & TERM_256COLOURS))
1028: return (-1);
1029:
1030: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1031: tty_puts(tty, s);
1032: return (0);
1033: }
1034:
1035: int
1036: tty_try_88(struct tty *tty, u_char colour, const char *type)
1037: {
1038: char s[32];
1039:
1040: if (!(tty->term->flags & TERM_88COLOURS) &&
1041: !(tty->term_flags & TERM_88COLOURS))
1042: return (-1);
1043: colour = colour_256to88(colour);
1044:
1045: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1046: tty_puts(tty, s);
1047: return (0);
1048: }
1049:
1050: void
1051: tty_attributes_fg(struct tty *tty, const struct grid_cell *gc)
1052: {
1053: u_char fg;
1054:
1055: fg = gc->fg;
1056: if (gc->flags & GRID_FLAG_FG256) {
1057: if (tty_try_256(tty, fg, "38") == 0)
1058: return;
1059: if (tty_try_88(tty, fg, "38") == 0)
1060: return;
1061: fg = colour_256to16(fg);
1062: if (fg & 8) {
1063: fg &= 7;
1064: tty_putcode(tty, TTYC_BOLD);
1065: tty->cell.attr |= GRID_ATTR_BRIGHT;
1066: } else if (tty->cell.attr & GRID_ATTR_BRIGHT)
1067: tty_reset(tty);
1068: }
1069:
1070: if (fg == 8 &&
1071: !(tty->term->flags & TERM_HASDEFAULTS) &&
1072: !(tty->term_flags & TERM_HASDEFAULTS))
1073: fg = 7;
1074: if (fg == 8)
1075: tty_puts(tty, "\033[39m");
1076: else
1077: tty_putcode1(tty, TTYC_SETAF, fg);
1078: }
1079:
1080: void
1081: tty_attributes_bg(struct tty *tty, const struct grid_cell *gc)
1082: {
1083: u_char bg;
1084:
1085: bg = gc->bg;
1086: if (gc->flags & GRID_FLAG_BG256) {
1087: if (tty_try_256(tty, bg, "48") == 0)
1088: return;
1089: if (tty_try_88(tty, bg, "48") == 0)
1090: return;
1091: bg = colour_256to16(bg);
1092: if (bg & 8)
1093: bg &= 7;
1094: }
1095:
1096: if (bg == 8 &&
1097: !(tty->term->flags & TERM_HASDEFAULTS) &&
1098: !(tty->term_flags & TERM_HASDEFAULTS))
1099: bg = 0;
1100: if (bg == 8)
1101: tty_puts(tty, "\033[49m");
1102: else
1103: tty_putcode1(tty, TTYC_SETAB, bg);
1104: }
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