Annotation of src/usr.bin/tmux/tty.c, Revision 1.23
1.23 ! nicm 1: /* $OpenBSD: tty.c,v 1.22 2009/08/11 21:28:11 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
1.22 nicm 48: tty_init(struct tty *tty, int fd, char *path, char *term)
1.1 nicm 49: {
50: tty->path = xstrdup(path);
1.22 nicm 51: tty->fd = fd;
1.23 ! nicm 52: tty->log_fd = -1;
1.22 nicm 53:
1.9 nicm 54: if (term == NULL || *term == '\0')
1.1 nicm 55: tty->termname = xstrdup("unknown");
56: else
57: tty->termname = xstrdup(term);
58: tty->flags = 0;
59: tty->term_flags = 0;
60: }
61:
62: int
1.17 nicm 63: tty_open(struct tty *tty, const char *overrides, char **cause)
1.1 nicm 64: {
1.22 nicm 65: int mode;
1.1 nicm 66:
67: if (tty->fd == -1) {
1.22 nicm 68: tty->fd = open(tty->path, O_RDWR|O_NONBLOCK);
69: if (tty->fd == -1) {
70: xasprintf(cause, "%s: %s", tty->path, strerror(errno));
71: return (-1);
72: }
1.1 nicm 73: }
74:
75: if ((mode = fcntl(tty->fd, F_GETFL)) == -1)
76: fatal("fcntl failed");
77: if (fcntl(tty->fd, F_SETFL, mode|O_NONBLOCK) == -1)
1.9 nicm 78: fatal("fcntl failed");
1.1 nicm 79: if (fcntl(tty->fd, F_SETFD, FD_CLOEXEC) == -1)
80: fatal("fcntl failed");
81:
82: if (debug_level > 3)
83: tty->log_fd = open("tmux.out", O_WRONLY|O_CREAT|O_TRUNC, 0644);
84: else
85: tty->log_fd = -1;
86:
1.17 nicm 87: tty->term = tty_term_find(tty->termname, tty->fd, overrides, cause);
1.21 nicm 88: if (tty->term == NULL) {
89: tty_close(tty);
90: return (-1);
91: }
92: tty->flags |= TTY_OPENED;
1.1 nicm 93:
94: tty->in = buffer_create(BUFSIZ);
95: tty->out = buffer_create(BUFSIZ);
96:
97: tty->flags &= TTY_UTF8;
98:
99: tty_start_tty(tty);
100:
101: tty_keys_init(tty);
102:
103: tty_fill_acs(tty);
104:
105: return (0);
106: }
107:
108: void
109: tty_start_tty(struct tty *tty)
110: {
111: struct termios tio;
112: int what;
113:
1.2 nicm 114: #if 0
1.1 nicm 115: tty_detect_utf8(tty);
1.2 nicm 116: #endif
1.1 nicm 117:
118: if (tcgetattr(tty->fd, &tty->tio) != 0)
119: fatal("tcgetattr failed");
120: memcpy(&tio, &tty->tio, sizeof tio);
121: tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
122: tio.c_iflag |= IGNBRK;
123: tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
124: tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
125: ECHOPRT|ECHOKE|ECHOCTL|ISIG);
126: tio.c_cc[VMIN] = 1;
127: tio.c_cc[VTIME] = 0;
128: if (tcsetattr(tty->fd, TCSANOW, &tio) != 0)
129: fatal("tcsetattr failed");
130:
131: what = 0;
132: if (ioctl(tty->fd, TIOCFLUSH, &what) != 0)
133: fatal("ioctl(TIOCFLUSH)");
134:
1.10 nicm 135: tty_putcode(tty, TTYC_SMCUP);
1.1 nicm 136:
137: tty_putcode(tty, TTYC_SMKX);
138: tty_putcode(tty, TTYC_ENACS);
139: tty_putcode(tty, TTYC_CLEAR);
140:
141: tty_putcode(tty, TTYC_CNORM);
142: if (tty_term_has(tty->term, TTYC_KMOUS))
143: tty_puts(tty, "\033[?1000l");
144:
145: memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
146:
147: tty->cx = UINT_MAX;
148: tty->cy = UINT_MAX;
149:
150: tty->rlower = UINT_MAX;
151: tty->rupper = UINT_MAX;
152:
153: tty->mode = MODE_CURSOR;
1.20 nicm 154:
155: tty->flags |= TTY_STARTED;
1.1 nicm 156: }
157:
158: void
159: tty_stop_tty(struct tty *tty)
160: {
161: struct winsize ws;
162:
1.20 nicm 163: if (!(tty->flags & TTY_STARTED))
164: return;
165: tty->flags &= ~TTY_STARTED;
166:
1.1 nicm 167: /*
168: * Be flexible about error handling and try not kill the server just
169: * because the fd is invalid. Things like ssh -t can easily leave us
170: * with a dead tty.
171: */
172: if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
173: return;
174: if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
175: return;
176:
177: tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
178: tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
179: tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
180: tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
181: tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
182:
183: tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
184: if (tty_term_has(tty->term, TTYC_KMOUS))
185: tty_raw(tty, "\033[?1000l");
1.10 nicm 186:
187: tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
1.1 nicm 188: }
189:
1.2 nicm 190: #if 0
1.1 nicm 191: void
192: tty_detect_utf8(struct tty *tty)
193: {
194: struct pollfd pfd;
195: char buf[7];
196: size_t len;
197: ssize_t n;
198: int nfds;
199: struct termios tio, old_tio;
200: int what;
201:
202: if (tty->flags & TTY_UTF8)
203: return;
204:
205: /*
206: * If the terminal looks reasonably likely to support this, try to
207: * write a three-byte UTF-8 wide character to the terminal, then read
208: * the cursor position.
209: *
210: * XXX This entire function is a hack.
211: */
212:
213: /* Check if the terminal looks sort of vt100. */
214: if (strstr(tty_term_string(tty->term, TTYC_CLEAR), "[2J") == NULL ||
215: strstr(tty_term_string(tty->term, TTYC_CUP), "H") == NULL)
216: return;
217:
218: if (tcgetattr(tty->fd, &old_tio) != 0)
219: fatal("tcgetattr failed");
220: cfmakeraw(&tio);
221: if (tcsetattr(tty->fd, TCSANOW, &tio) != 0)
222: fatal("tcsetattr failed");
223:
224: what = 0;
225: if (ioctl(tty->fd, TIOCFLUSH, &what) != 0)
226: fatal("ioctl(TIOCFLUSH)");
227:
228: #define UTF8_TEST_DATA "\033[H\357\277\246\033[6n"
229: if (write(tty->fd, UTF8_TEST_DATA, (sizeof UTF8_TEST_DATA) - 1) == -1)
230: fatal("write failed");
231: #undef UTF8_TEST_DATA
232:
233: len = 0;
234: for (;;) {
235: pfd.fd = tty->fd;
236: pfd.events = POLLIN;
237:
238: nfds = poll(&pfd, 1, 500);
239: if (nfds == -1) {
240: if (errno == EAGAIN || errno == EINTR)
241: continue;
242: fatal("poll failed");
243: }
244: if (nfds == 0)
245: break;
246: if (pfd.revents & (POLLERR|POLLNVAL|POLLHUP))
247: break;
248: if (!(pfd.revents & POLLIN))
249: continue;
250:
251: if ((n = read(tty->fd, buf + len, 1)) != 1)
252: break;
253: buf[++len] = '\0';
254:
255: if (len == (sizeof buf) - 1) {
256: if (strcmp(buf, "\033[1;3R") == 0)
257: tty->flags |= TTY_UTF8;
258: break;
259: }
260: }
261:
262: if (tcsetattr(tty->fd, TCSANOW, &old_tio) != 0)
263: fatal("tcsetattr failed");
264: }
1.2 nicm 265: #endif
1.1 nicm 266:
267: void
268: tty_fill_acs(struct tty *tty)
269: {
270: const char *ptr;
271:
272: memset(tty->acs, 0, sizeof tty->acs);
273: if (!tty_term_has(tty->term, TTYC_ACSC))
274: return;
275:
276: ptr = tty_term_string(tty->term, TTYC_ACSC);
277: if (strlen(ptr) % 2 != 0)
278: return;
279: for (; *ptr != '\0'; ptr += 2)
280: tty->acs[(u_char) ptr[0]] = ptr[1];
281: }
282:
283: u_char
284: tty_get_acs(struct tty *tty, u_char ch)
285: {
286: if (tty->acs[ch] != '\0')
287: return (tty->acs[ch]);
288: return (ch);
289: }
290:
291: void
1.20 nicm 292: tty_close(struct tty *tty)
1.1 nicm 293: {
294: if (tty->log_fd != -1) {
295: close(tty->log_fd);
296: tty->log_fd = -1;
297: }
298:
1.20 nicm 299: tty_stop_tty(tty);
1.1 nicm 300:
1.21 nicm 301: if (tty->flags & TTY_OPENED) {
302: tty_term_free(tty->term);
303: tty_keys_free(tty);
304:
305: buffer_destroy(tty->in);
306: buffer_destroy(tty->out);
1.1 nicm 307:
1.21 nicm 308: tty->flags &= ~TTY_OPENED;
309: }
1.1 nicm 310:
1.21 nicm 311: if (tty->fd != -1) {
312: close(tty->fd);
313: tty->fd = -1;
314: }
1.1 nicm 315: }
316:
317: void
1.20 nicm 318: tty_free(struct tty *tty)
1.1 nicm 319: {
1.20 nicm 320: tty_close(tty);
1.1 nicm 321:
322: if (tty->path != NULL)
323: xfree(tty->path);
324: if (tty->termname != NULL)
325: xfree(tty->termname);
326: }
327:
328: void
329: tty_raw(struct tty *tty, const char *s)
330: {
331: write(tty->fd, s, strlen(s));
332: }
333:
334: void
335: tty_putcode(struct tty *tty, enum tty_code_code code)
336: {
337: tty_puts(tty, tty_term_string(tty->term, code));
338: }
339:
340: void
341: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
342: {
343: if (a < 0)
344: return;
345: tty_puts(tty, tty_term_string1(tty->term, code, a));
346: }
347:
348: void
349: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
350: {
351: if (a < 0 || b < 0)
352: return;
353: tty_puts(tty, tty_term_string2(tty->term, code, a, b));
354: }
355:
356: void
357: tty_puts(struct tty *tty, const char *s)
358: {
359: if (*s == '\0')
360: return;
361: buffer_write(tty->out, s, strlen(s));
362:
363: if (tty->log_fd != -1)
364: write(tty->log_fd, s, strlen(s));
365: }
366:
367: void
368: tty_putc(struct tty *tty, u_char ch)
369: {
370: u_int sx;
371:
372: if (tty->cell.attr & GRID_ATTR_CHARSET)
373: ch = tty_get_acs(tty, ch);
374: buffer_write8(tty->out, ch);
375:
376: if (ch >= 0x20 && ch != 0x7f) {
377: sx = tty->sx;
378: if (tty->term->flags & TERM_EARLYWRAP)
379: sx--;
380:
381: if (tty->cx == sx) {
382: tty->cx = 0;
383: tty->cy++;
384: } else
385: tty->cx++;
386: }
387:
388: if (tty->log_fd != -1)
389: write(tty->log_fd, &ch, 1);
390: }
391:
392: void
1.5 nicm 393: tty_pututf8(struct tty *tty, const struct grid_utf8 *gu)
394: {
395: u_int i, width;
396:
397: for (i = 0; i < UTF8_SIZE; i++) {
398: if (gu->data[i] == 0xff)
399: break;
400: buffer_write8(tty->out, gu->data[i]);
401: if (tty->log_fd != -1)
402: write(tty->log_fd, &gu->data[i], 1);
403: }
404:
405: width = utf8_width(gu->data);
406: tty->cx += width;
407: }
408:
409: void
1.1 nicm 410: tty_set_title(struct tty *tty, const char *title)
411: {
412: if (strstr(tty->termname, "xterm") == NULL &&
413: strstr(tty->termname, "rxvt") == NULL &&
414: strcmp(tty->termname, "screen") != 0)
415: return;
416:
417: tty_puts(tty, "\033]0;");
418: tty_puts(tty, title);
419: tty_putc(tty, '\007');
420: }
421:
422: void
423: tty_update_mode(struct tty *tty, int mode)
424: {
425: int changed;
426:
427: if (tty->flags & TTY_NOCURSOR)
428: mode &= ~MODE_CURSOR;
429:
430: changed = mode ^ tty->mode;
431: if (changed & MODE_CURSOR) {
432: if (mode & MODE_CURSOR)
433: tty_putcode(tty, TTYC_CNORM);
434: else
435: tty_putcode(tty, TTYC_CIVIS);
436: }
437: if (changed & MODE_MOUSE) {
438: if (mode & MODE_MOUSE)
439: tty_puts(tty, "\033[?1000h");
440: else
441: tty_puts(tty, "\033[?1000l");
442: }
443: tty->mode = mode;
444: }
445:
446: void
447: tty_emulate_repeat(
448: struct tty *tty, enum tty_code_code code, enum tty_code_code code1, u_int n)
449: {
450: if (tty_term_has(tty->term, code))
451: tty_putcode1(tty, code, n);
452: else {
453: while (n-- > 0)
454: tty_putcode(tty, code1);
455: }
456: }
457:
458: /*
459: * Redraw scroll region using data from screen (already updated). Used when
460: * CSR not supported, or window is a pane that doesn't take up the full
461: * width of the terminal.
462: */
463: void
1.14 nicm 464: tty_redraw_region(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 465: {
1.14 nicm 466: struct window_pane *wp = ctx->wp;
467: struct screen *s = wp->screen;
468: u_int i;
1.1 nicm 469:
470: /*
471: * If region is >= 50% of the screen, just schedule a window redraw. In
472: * most cases, this is likely to be followed by some more scrolling -
473: * without this, the entire pane ends up being redrawn many times which
474: * can be much more data.
475: */
1.14 nicm 476: if (ctx->orupper - ctx->orlower >= screen_size_y(s) / 2) {
1.1 nicm 477: wp->flags |= PANE_REDRAW;
478: return;
479: }
480:
1.14 nicm 481: if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
482: for (i = ctx->ocy; i < screen_size_y(s); i++)
1.1 nicm 483: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
484: } else {
1.14 nicm 485: for (i = ctx->orupper; i <= ctx->orlower; i++)
1.1 nicm 486: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
487: }
488: }
489:
490: void
491: tty_draw_line(struct tty *tty, struct screen *s, u_int py, u_int ox, u_int oy)
492: {
493: const struct grid_cell *gc;
1.16 nicm 494: struct grid_cell tmpgc;
1.1 nicm 495: const struct grid_utf8 *gu;
496: u_int i, sx;
497:
498: sx = screen_size_x(s);
1.19 nicm 499: if (sx > s->grid->linedata[s->grid->hsize + py].cellsize)
500: sx = s->grid->linedata[s->grid->hsize + py].cellsize;
1.1 nicm 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)) {
1.16 nicm 513: memcpy(&tmpgc, &s->sel.cell, sizeof tmpgc);
514: tmpgc.data = gc->data;
515: tmpgc.flags = gc->flags;
516: tty_cell(tty, &tmpgc, gu);
1.1 nicm 517: } else
518: tty_cell(tty, gc, gu);
519: }
520:
521: if (sx >= tty->sx)
522: return;
523: tty_reset(tty);
524:
525: tty_cursor(tty, sx, py, ox, oy);
526: if (screen_size_x(s) >= tty->sx && tty_term_has(tty->term, TTYC_EL))
527: tty_putcode(tty, TTYC_EL);
528: else {
529: for (i = sx; i < screen_size_x(s); i++)
530: tty_putc(tty, ' ');
1.15 nicm 531: }
532: }
533:
534: void
535: tty_write(void (*cmdfn)(struct tty *, struct tty_ctx *), struct tty_ctx *ctx)
536: {
537: struct window_pane *wp = ctx->wp;
538: struct client *c;
539: u_int i;
540:
541: if (wp == NULL)
542: return;
543:
544: if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
545: return;
546: if (wp->window->flags & WINDOW_HIDDEN || !window_pane_visible(wp))
547: return;
548:
549: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
550: c = ARRAY_ITEM(&clients, i);
551: if (c == NULL || c->session == NULL)
552: continue;
553: if (c->flags & CLIENT_SUSPENDED)
554: continue;
555:
556: if (c->session->curw->window == wp->window) {
557: if (c->tty.flags & TTY_FREEZE || c->tty.term == NULL)
558: continue;
559: tty_update_mode(&c->tty, c->tty.mode & ~MODE_CURSOR);
560: cmdfn(&c->tty, ctx);
561: }
1.1 nicm 562: }
563: }
564:
565: void
1.12 nicm 566: tty_cmd_insertcharacter(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 567: {
1.12 nicm 568: struct window_pane *wp = ctx->wp;
569: struct screen *s = wp->screen;
1.1 nicm 570:
571: if (wp->xoff != 0 || screen_size_x(s) < tty->sx) {
1.14 nicm 572: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 573: return;
574: }
575:
576: tty_reset(tty);
577:
1.14 nicm 578: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 579: if (tty_term_has(tty->term, TTYC_ICH) ||
580: tty_term_has(tty->term, TTYC_ICH1))
1.12 nicm 581: tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
1.1 nicm 582: else {
583: tty_putcode(tty, TTYC_SMIR);
1.12 nicm 584: while (ctx->num-- > 0)
1.1 nicm 585: tty_putc(tty, ' ');
586: tty_putcode(tty, TTYC_RMIR);
587: }
588: }
589:
590: void
1.12 nicm 591: tty_cmd_deletecharacter(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 592: {
1.12 nicm 593: struct window_pane *wp = ctx->wp;
594: struct screen *s = wp->screen;
1.1 nicm 595:
596: if (wp->xoff != 0 || screen_size_x(s) < tty->sx) {
1.14 nicm 597: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 598: return;
599: }
600:
601: tty_reset(tty);
602:
1.14 nicm 603: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.12 nicm 604: tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
1.1 nicm 605: }
606:
607: void
1.12 nicm 608: tty_cmd_insertline(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 609: {
1.12 nicm 610: struct window_pane *wp = ctx->wp;
611: struct screen *s = wp->screen;
1.1 nicm 612:
613: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
614: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 615: tty_redraw_region(tty, ctx);
1.1 nicm 616: return;
617: }
618:
619: tty_reset(tty);
620:
1.14 nicm 621: tty_region(tty, ctx->orupper, ctx->orlower, wp->yoff);
1.1 nicm 622:
1.14 nicm 623: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.12 nicm 624: tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
1.1 nicm 625: }
626:
627: void
1.12 nicm 628: tty_cmd_deleteline(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 629: {
1.12 nicm 630: struct window_pane *wp = ctx->wp;
631: struct screen *s = wp->screen;
1.1 nicm 632:
633: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
634: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 635: tty_redraw_region(tty, ctx);
1.1 nicm 636: return;
637: }
638:
639: tty_reset(tty);
640:
1.14 nicm 641: tty_region(tty, ctx->orupper, ctx->orlower, wp->yoff);
1.1 nicm 642:
1.14 nicm 643: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.12 nicm 644: tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
1.1 nicm 645: }
646:
647: void
1.12 nicm 648: tty_cmd_clearline(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 649: {
1.12 nicm 650: struct window_pane *wp = ctx->wp;
651: struct screen *s = wp->screen;
652: u_int i;
1.1 nicm 653:
654: tty_reset(tty);
655:
1.14 nicm 656: tty_cursor(tty, 0, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 657: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
658: tty_term_has(tty->term, TTYC_EL)) {
659: tty_putcode(tty, TTYC_EL);
660: } else {
661: for (i = 0; i < screen_size_x(s); i++)
662: tty_putc(tty, ' ');
663: }
664: }
665:
666: void
1.12 nicm 667: tty_cmd_clearendofline(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 668: {
1.12 nicm 669: struct window_pane *wp = ctx->wp;
670: struct screen *s = wp->screen;
671: u_int i;
1.1 nicm 672:
673: tty_reset(tty);
674:
1.14 nicm 675: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 676: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
677: tty_term_has(tty->term, TTYC_EL))
678: tty_putcode(tty, TTYC_EL);
679: else {
1.14 nicm 680: for (i = ctx->ocx; i < screen_size_x(s); i++)
1.1 nicm 681: tty_putc(tty, ' ');
682: }
683: }
684:
685: void
1.12 nicm 686: tty_cmd_clearstartofline(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 687: {
1.12 nicm 688: struct window_pane *wp = ctx->wp;
689: u_int i;
1.1 nicm 690:
691: tty_reset(tty);
692:
693: if (wp->xoff == 0 && tty_term_has(tty->term, TTYC_EL1)) {
1.14 nicm 694: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 695: tty_putcode(tty, TTYC_EL1);
696: } else {
1.14 nicm 697: tty_cursor(tty, 0, ctx->ocy, wp->xoff, wp->yoff);
698: for (i = 0; i < ctx->ocx + 1; i++)
1.1 nicm 699: tty_putc(tty, ' ');
700: }
701: }
702:
703: void
1.12 nicm 704: tty_cmd_reverseindex(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 705: {
1.12 nicm 706: struct window_pane *wp = ctx->wp;
707: struct screen *s = wp->screen;
1.1 nicm 708:
709: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
710: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 711: tty_redraw_region(tty, ctx);
1.1 nicm 712: return;
713: }
714:
715: tty_reset(tty);
716:
1.14 nicm 717: tty_region(tty, ctx->orupper, ctx->orlower, wp->yoff);
1.1 nicm 718:
1.14 nicm 719: if (ctx->ocy == ctx->orupper) {
720: tty_cursor(tty, ctx->ocx, ctx->orupper, wp->xoff, wp->yoff);
1.1 nicm 721: tty_putcode(tty, TTYC_RI);
722: }
723: }
724:
725: void
1.12 nicm 726: tty_cmd_linefeed(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 727: {
1.12 nicm 728: struct window_pane *wp = ctx->wp;
729: struct screen *s = wp->screen;
1.1 nicm 730:
731: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
732: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 733: tty_redraw_region(tty, ctx);
1.1 nicm 734: return;
735: }
736:
737: tty_reset(tty);
738:
1.14 nicm 739: tty_region(tty, ctx->orupper, ctx->orlower, wp->yoff);
1.1 nicm 740:
1.14 nicm 741: if (ctx->ocy == ctx->orlower) {
742: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 743: tty_putc(tty, '\n');
744: }
745: }
746:
747: void
1.12 nicm 748: tty_cmd_clearendofscreen(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 749: {
1.12 nicm 750: struct window_pane *wp = ctx->wp;
751: struct screen *s = wp->screen;
752: u_int i, j;
1.1 nicm 753:
754: tty_reset(tty);
755:
756: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
1.14 nicm 757: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 758: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
759: tty_term_has(tty->term, TTYC_EL)) {
760: tty_putcode(tty, TTYC_EL);
1.14 nicm 761: if (ctx->ocy != screen_size_y(s) - 1) {
762: tty_cursor(tty, 0, ctx->ocy + 1, wp->xoff, wp->yoff);
763: for (i = ctx->ocy + 1; i < screen_size_y(s); i++) {
1.1 nicm 764: tty_putcode(tty, TTYC_EL);
765: if (i == screen_size_y(s) - 1)
766: continue;
767: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
768: tty->cy++;
769: }
770: }
771: } else {
1.14 nicm 772: for (i = ctx->ocx; i < screen_size_x(s); i++)
1.1 nicm 773: tty_putc(tty, ' ');
1.14 nicm 774: for (j = ctx->ocy; j < screen_size_y(s); j++) {
1.1 nicm 775: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
776: for (i = 0; i < screen_size_x(s); i++)
777: tty_putc(tty, ' ');
778: }
779: }
780: }
781:
782: void
1.12 nicm 783: tty_cmd_clearstartofscreen(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 784: {
1.12 nicm 785: struct window_pane *wp = ctx->wp;
786: struct screen *s = wp->screen;
787: u_int i, j;
1.1 nicm 788:
789: tty_reset(tty);
790:
791: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
792: tty_cursor(tty, 0, 0, wp->xoff, wp->yoff);
793: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
794: tty_term_has(tty->term, TTYC_EL)) {
1.14 nicm 795: for (i = 0; i < ctx->ocy; i++) {
1.1 nicm 796: tty_putcode(tty, TTYC_EL);
797: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
798: tty->cy++;
799: }
800: } else {
1.14 nicm 801: for (j = 0; j < ctx->ocy; j++) {
1.1 nicm 802: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
803: for (i = 0; i < screen_size_x(s); i++)
804: tty_putc(tty, ' ');
805: }
806: }
1.14 nicm 807: for (i = 0; i <= ctx->ocx; i++)
1.1 nicm 808: tty_putc(tty, ' ');
809: }
810:
811: void
1.12 nicm 812: tty_cmd_clearscreen(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 813: {
1.12 nicm 814: struct window_pane *wp = ctx->wp;
815: struct screen *s = wp->screen;
816: u_int i, j;
1.1 nicm 817:
818: tty_reset(tty);
819:
820: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
821: tty_cursor(tty, 0, 0, wp->xoff, wp->yoff);
822: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
823: tty_term_has(tty->term, TTYC_EL)) {
824: for (i = 0; i < screen_size_y(s); i++) {
825: tty_putcode(tty, TTYC_EL);
826: if (i != screen_size_y(s) - 1) {
827: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
828: tty->cy++;
829: }
830: }
831: } else {
832: for (j = 0; j < screen_size_y(s); j++) {
833: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
834: for (i = 0; i < screen_size_x(s); i++)
835: tty_putc(tty, ' ');
836: }
1.4 nicm 837: }
838: }
839:
840: void
1.12 nicm 841: tty_cmd_alignmenttest(struct tty *tty, struct tty_ctx *ctx)
1.4 nicm 842: {
1.12 nicm 843: struct window_pane *wp = ctx->wp;
844: struct screen *s = wp->screen;
845: u_int i, j;
1.4 nicm 846:
847: tty_reset(tty);
848:
849: tty_region(tty, 0, screen_size_y(s) - 1, wp->yoff);
850:
851: for (j = 0; j < screen_size_y(s); j++) {
852: tty_cursor(tty, 0, j, wp->xoff, wp->yoff);
853: for (i = 0; i < screen_size_x(s); i++)
854: tty_putc(tty, 'E');
1.1 nicm 855: }
856: }
857:
858: void
1.12 nicm 859: tty_cmd_cell(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 860: {
1.12 nicm 861: struct window_pane *wp = ctx->wp;
1.1 nicm 862:
1.14 nicm 863: tty_cursor(tty, ctx->ocx, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 864:
1.12 nicm 865: tty_cell(tty, ctx->cell, ctx->utf8);
1.1 nicm 866: }
867:
868: void
1.12 nicm 869: tty_cmd_utf8character(struct tty *tty, struct tty_ctx *ctx)
1.1 nicm 870: {
1.12 nicm 871: u_char *ptr = ctx->ptr;
1.11 nicm 872: size_t i;
1.1 nicm 873:
1.11 nicm 874: for (i = 0; i < UTF8_SIZE; i++) {
1.12 nicm 875: if (ptr[i] == 0xff)
1.11 nicm 876: break;
1.12 nicm 877: tty_putc(tty, ptr[i]);
1.11 nicm 878: }
1.1 nicm 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. */
1.5 nicm 915: tty_pututf8(tty, gu);
1.1 nicm 916: }
917:
918: void
919: tty_reset(struct tty *tty)
920: {
921: struct grid_cell *gc = &tty->cell;
922:
923: if (memcmp(gc, &grid_default_cell, sizeof *gc) == 0)
924: return;
925:
926: if (tty_term_has(tty->term, TTYC_RMACS) && gc->attr & GRID_ATTR_CHARSET)
927: tty_putcode(tty, TTYC_RMACS);
928: tty_putcode(tty, TTYC_SGR0);
929: memcpy(gc, &grid_default_cell, sizeof *gc);
930: }
931:
932: void
933: tty_region(struct tty *tty, u_int rupper, u_int rlower, u_int oy)
934: {
935: if (!tty_term_has(tty->term, TTYC_CSR))
936: return;
937: if (tty->rlower != oy + rlower || tty->rupper != oy + rupper) {
938: tty->rlower = oy + rlower;
939: tty->rupper = oy + rupper;
940: tty->cx = 0;
941: tty->cy = 0;
942: tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
943: }
944: }
945:
946: void
947: tty_cursor(struct tty *tty, u_int cx, u_int cy, u_int ox, u_int oy)
948: {
949: if (ox + cx == 0 && tty->cx != 0 && tty->cy == oy + cy) {
950: tty->cx = 0;
951: tty_putc(tty, '\r');
952: } else if (tty->cx != ox + cx || tty->cy != oy + cy) {
953: tty->cx = ox + cx;
954: tty->cy = oy + cy;
955: tty_putcode2(tty, TTYC_CUP, tty->cy, tty->cx);
956: }
957: }
958:
959: void
960: tty_attributes(struct tty *tty, const struct grid_cell *gc)
961: {
962: struct grid_cell *tc = &tty->cell;
963: u_char changed;
1.18 nicm 964: u_int fg, bg, attr;
965:
966: /*
967: * If no setab, try to use the reverse attribute as a best-effort for a
968: * non-default background. This is a bit of a hack but it doesn't do
969: * any serious harm and makes a couple of applications happier.
970: */
971: fg = gc->fg; bg = gc->bg; attr = gc->attr;
972: if (!tty_term_has(tty->term, TTYC_SETAB)) {
973: if (attr & GRID_ATTR_REVERSE) {
974: if (fg != 7 && fg != 8)
975: attr &= ~GRID_ATTR_REVERSE;
976: } else {
977: if (bg != 0 && bg != 8)
978: attr |= GRID_ATTR_REVERSE;
979: }
980: }
1.1 nicm 981:
982: /* If any bits are being cleared, reset everything. */
1.18 nicm 983: if (tc->attr & ~attr)
1.1 nicm 984: tty_reset(tty);
985:
986: /* Filter out attribute bits already set. */
1.18 nicm 987: changed = attr & ~tc->attr;
988: tc->attr = attr;
1.1 nicm 989:
990: /* Set the attributes. */
991: if (changed & GRID_ATTR_BRIGHT)
992: tty_putcode(tty, TTYC_BOLD);
993: if (changed & GRID_ATTR_DIM)
994: tty_putcode(tty, TTYC_DIM);
995: if (changed & GRID_ATTR_ITALICS)
996: tty_putcode(tty, TTYC_SMSO);
997: if (changed & GRID_ATTR_UNDERSCORE)
998: tty_putcode(tty, TTYC_SMUL);
999: if (changed & GRID_ATTR_BLINK)
1000: tty_putcode(tty, TTYC_BLINK);
1001: if (changed & GRID_ATTR_REVERSE) {
1002: if (tty_term_has(tty->term, TTYC_REV))
1003: tty_putcode(tty, TTYC_REV);
1004: else if (tty_term_has(tty->term, TTYC_SMSO))
1005: tty_putcode(tty, TTYC_SMSO);
1006: }
1007: if (changed & GRID_ATTR_HIDDEN)
1008: tty_putcode(tty, TTYC_INVIS);
1009: if (changed & GRID_ATTR_CHARSET)
1010: tty_putcode(tty, TTYC_SMACS);
1011:
1012: /* Set foreground colour. */
1013: if (fg != tc->fg ||
1014: (gc->flags & GRID_FLAG_FG256) != (tc->flags & GRID_FLAG_FG256)) {
1015: tty_attributes_fg(tty, gc);
1016: tc->fg = fg;
1.8 nicm 1017: tc->flags &= ~GRID_FLAG_FG256;
1018: tc->flags |= gc->flags & GRID_FLAG_FG256;
1.1 nicm 1019: }
1020:
1021: /* Set background colour. */
1022: if (bg != tc->bg ||
1023: (gc->flags & GRID_FLAG_BG256) != (tc->flags & GRID_FLAG_BG256)) {
1024: tty_attributes_bg(tty, gc);
1025: tc->bg = bg;
1.8 nicm 1026: tc->flags &= ~GRID_FLAG_BG256;
1027: tc->flags |= gc->flags & GRID_FLAG_BG256;
1.1 nicm 1028: }
1029: }
1030:
1031: int
1032: tty_try_256(struct tty *tty, u_char colour, const char *type)
1033: {
1034: char s[32];
1035:
1036: if (!(tty->term->flags & TERM_256COLOURS) &&
1037: !(tty->term_flags & TERM_256COLOURS))
1038: return (-1);
1039:
1040: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1041: tty_puts(tty, s);
1042: return (0);
1043: }
1044:
1045: int
1046: tty_try_88(struct tty *tty, u_char colour, const char *type)
1047: {
1048: char s[32];
1049:
1050: if (!(tty->term->flags & TERM_88COLOURS) &&
1051: !(tty->term_flags & TERM_88COLOURS))
1052: return (-1);
1053: colour = colour_256to88(colour);
1054:
1055: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1056: tty_puts(tty, s);
1057: return (0);
1058: }
1059:
1060: void
1061: tty_attributes_fg(struct tty *tty, const struct grid_cell *gc)
1062: {
1063: u_char fg;
1064:
1065: fg = gc->fg;
1066: if (gc->flags & GRID_FLAG_FG256) {
1067: if (tty_try_256(tty, fg, "38") == 0)
1068: return;
1069: if (tty_try_88(tty, fg, "38") == 0)
1070: return;
1071: fg = colour_256to16(fg);
1072: if (fg & 8) {
1073: fg &= 7;
1074: tty_putcode(tty, TTYC_BOLD);
1075: tty->cell.attr |= GRID_ATTR_BRIGHT;
1076: } else if (tty->cell.attr & GRID_ATTR_BRIGHT)
1077: tty_reset(tty);
1078: }
1079:
1080: if (fg == 8 &&
1081: !(tty->term->flags & TERM_HASDEFAULTS) &&
1082: !(tty->term_flags & TERM_HASDEFAULTS))
1083: fg = 7;
1084: if (fg == 8)
1085: tty_puts(tty, "\033[39m");
1086: else
1087: tty_putcode1(tty, TTYC_SETAF, fg);
1088: }
1089:
1090: void
1091: tty_attributes_bg(struct tty *tty, const struct grid_cell *gc)
1092: {
1093: u_char bg;
1094:
1095: bg = gc->bg;
1096: if (gc->flags & GRID_FLAG_BG256) {
1097: if (tty_try_256(tty, bg, "48") == 0)
1098: return;
1099: if (tty_try_88(tty, bg, "48") == 0)
1100: return;
1101: bg = colour_256to16(bg);
1102: if (bg & 8)
1103: bg &= 7;
1104: }
1105:
1106: if (bg == 8 &&
1107: !(tty->term->flags & TERM_HASDEFAULTS) &&
1108: !(tty->term_flags & TERM_HASDEFAULTS))
1109: bg = 0;
1110: if (bg == 8)
1111: tty_puts(tty, "\033[49m");
1112: else
1113: tty_putcode1(tty, TTYC_SETAB, bg);
1114: }
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