Annotation of src/usr.bin/tmux/tty.c, Revision 1.89
1.89 ! nicm 1: /* $OpenBSD: tty.c,v 1.88 2010/06/05 16:47:11 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>
1.42 nicm 24: #include <stdlib.h>
1.1 nicm 25: #include <string.h>
26: #include <termios.h>
27: #include <unistd.h>
28:
29: #include "tmux.h"
30:
1.67 nicm 31: void tty_read_callback(struct bufferevent *, void *);
1.66 nicm 32: void tty_error_callback(struct bufferevent *, short, void *);
33:
1.1 nicm 34: void tty_fill_acs(struct tty *);
35:
36: int tty_try_256(struct tty *, u_char, const char *);
37: int tty_try_88(struct tty *, u_char, const char *);
38:
1.85 nicm 39: void tty_colours(struct tty *, const struct grid_cell *);
40: void tty_check_fg(struct tty *, struct grid_cell *);
41: void tty_check_bg(struct tty *, struct grid_cell *);
42: void tty_colours_fg(struct tty *, const struct grid_cell *);
1.73 nicm 43: void tty_colours_bg(struct tty *, const struct grid_cell *);
1.1 nicm 44:
1.24 nicm 45: void tty_redraw_region(struct tty *, const struct tty_ctx *);
1.13 nicm 46: void tty_emulate_repeat(
47: struct tty *, enum tty_code_code, enum tty_code_code, u_int);
1.14 nicm 48: void tty_cell(struct tty *,
1.77 nicm 49: const struct grid_cell *, const struct grid_utf8 *);
1.1 nicm 50:
51: void
1.30 nicm 52: tty_init(struct tty *tty, int fd, char *term)
1.1 nicm 53: {
1.30 nicm 54: char *path;
55:
56: memset(tty, 0, sizeof *tty);
1.23 nicm 57: tty->log_fd = -1;
1.22 nicm 58:
1.9 nicm 59: if (term == NULL || *term == '\0')
1.1 nicm 60: tty->termname = xstrdup("unknown");
61: else
62: tty->termname = xstrdup(term);
1.30 nicm 63:
64: if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
65: fatal("fcntl failed");
66: tty->fd = fd;
67:
68: if ((path = ttyname(fd)) == NULL)
69: fatalx("ttyname failed");
70: tty->path = xstrdup(path);
71:
1.1 nicm 72: tty->flags = 0;
73: tty->term_flags = 0;
1.31 nicm 74: }
75:
1.88 nicm 76: int
1.31 nicm 77: tty_resize(struct tty *tty)
78: {
79: struct winsize ws;
1.88 nicm 80: u_int sx, sy;
1.31 nicm 81:
82: if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
1.88 nicm 83: sx = ws.ws_col;
84: if (sx == 0)
85: sx = 80;
86: sy = ws.ws_row;
87: if (sy == 0)
88: sy = 24;
89: } else {
90: sx = 80;
91: sy = 24;
1.31 nicm 92: }
1.88 nicm 93: if (sx == tty->sx && sy == tty->sy)
94: return (0);
95: tty->sx = sx;
96: tty->sy = sy;
1.31 nicm 97:
98: tty->cx = UINT_MAX;
99: tty->cy = UINT_MAX;
100:
101: tty->rupper = UINT_MAX;
102: tty->rlower = UINT_MAX;
1.88 nicm 103:
104: /*
105: * If the terminal has been started, reset the actual scroll region and
106: * cursor position, as this may not have happened.
107: */
108: if (tty->flags & TTY_STARTED) {
109: tty_cursor(tty, 0, 0);
110: tty_region(tty, 0, tty->sy - 1);
111: }
112:
113: return (1);
1.1 nicm 114: }
115:
116: int
1.17 nicm 117: tty_open(struct tty *tty, const char *overrides, char **cause)
1.1 nicm 118: {
1.88 nicm 119: char out[64];
1.30 nicm 120: int fd;
1.1 nicm 121:
1.30 nicm 122: if (debug_level > 3) {
1.88 nicm 123: xsnprintf(out, sizeof out, "tmux-out-%ld.log", (long) getpid());
124: fd = open(out, O_WRONLY|O_CREAT|O_TRUNC, 0644);
1.30 nicm 125: if (fd != -1 && fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
126: fatal("fcntl failed");
127: tty->log_fd = fd;
1.1 nicm 128: }
129:
1.17 nicm 130: tty->term = tty_term_find(tty->termname, tty->fd, overrides, cause);
1.21 nicm 131: if (tty->term == NULL) {
132: tty_close(tty);
133: return (-1);
134: }
135: tty->flags |= TTY_OPENED;
1.1 nicm 136:
1.66 nicm 137: tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_ESCAPE);
1.1 nicm 138:
1.66 nicm 139: tty->event = bufferevent_new(
1.67 nicm 140: tty->fd, tty_read_callback, NULL, tty_error_callback, tty);
1.1 nicm 141:
142: tty_start_tty(tty);
143:
144: tty_keys_init(tty);
145:
146: tty_fill_acs(tty);
147:
148: return (0);
149: }
150:
1.73 nicm 151: /* ARGSUSED */
1.1 nicm 152: void
1.67 nicm 153: tty_read_callback(unused struct bufferevent *bufev, void *data)
154: {
155: struct tty *tty = data;
156:
157: while (tty_keys_next(tty))
158: ;
159: }
160:
1.73 nicm 161: /* ARGSUSED */
1.67 nicm 162: void
1.66 nicm 163: tty_error_callback(
164: unused struct bufferevent *bufev, unused short what, unused void *data)
165: {
166: }
167:
168: void
1.1 nicm 169: tty_start_tty(struct tty *tty)
170: {
171: struct termios tio;
1.82 nicm 172: int mode;
1.33 nicm 173:
174: if (tty->fd == -1)
175: return;
1.1 nicm 176:
1.34 nicm 177: if ((mode = fcntl(tty->fd, F_GETFL)) == -1)
178: fatal("fcntl failed");
179: if (fcntl(tty->fd, F_SETFL, mode|O_NONBLOCK) == -1)
180: fatal("fcntl failed");
181:
1.66 nicm 182: bufferevent_enable(tty->event, EV_READ|EV_WRITE);
183:
1.1 nicm 184: if (tcgetattr(tty->fd, &tty->tio) != 0)
185: fatal("tcgetattr failed");
186: memcpy(&tio, &tty->tio, sizeof tio);
187: tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
188: tio.c_iflag |= IGNBRK;
189: tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
190: tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
191: ECHOPRT|ECHOKE|ECHOCTL|ISIG);
192: tio.c_cc[VMIN] = 1;
1.60 deraadt 193: tio.c_cc[VTIME] = 0;
1.1 nicm 194: if (tcsetattr(tty->fd, TCSANOW, &tio) != 0)
195: fatal("tcsetattr failed");
1.82 nicm 196: tcflush(tty->fd, TCIOFLUSH);
1.1 nicm 197:
1.10 nicm 198: tty_putcode(tty, TTYC_SMCUP);
1.1 nicm 199:
1.25 nicm 200: tty_putcode(tty, TTYC_SGR0);
201: memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
202:
1.76 nicm 203: tty_putcode(tty, TTYC_RMKX);
1.1 nicm 204: tty_putcode(tty, TTYC_ENACS);
205: tty_putcode(tty, TTYC_CLEAR);
206:
207: tty_putcode(tty, TTYC_CNORM);
208: if (tty_term_has(tty->term, TTYC_KMOUS))
209: tty_puts(tty, "\033[?1000l");
210:
211: tty->cx = UINT_MAX;
212: tty->cy = UINT_MAX;
213:
214: tty->rlower = UINT_MAX;
215: tty->rupper = UINT_MAX;
216:
217: tty->mode = MODE_CURSOR;
1.20 nicm 218:
219: tty->flags |= TTY_STARTED;
1.1 nicm 220: }
221:
222: void
223: tty_stop_tty(struct tty *tty)
224: {
225: struct winsize ws;
1.34 nicm 226: int mode;
1.1 nicm 227:
1.20 nicm 228: if (!(tty->flags & TTY_STARTED))
229: return;
230: tty->flags &= ~TTY_STARTED;
231:
1.66 nicm 232: bufferevent_disable(tty->event, EV_READ|EV_WRITE);
233:
1.1 nicm 234: /*
235: * Be flexible about error handling and try not kill the server just
236: * because the fd is invalid. Things like ssh -t can easily leave us
237: * with a dead tty.
238: */
239: if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
240: return;
241: if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
242: return;
243:
244: tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
245: tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
246: tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
247: tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
248: tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
249:
250: tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
251: if (tty_term_has(tty->term, TTYC_KMOUS))
252: tty_raw(tty, "\033[?1000l");
1.10 nicm 253:
254: tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
1.84 nicm 255:
256: if ((mode = fcntl(tty->fd, F_GETFL)) != -1)
257: fcntl(tty->fd, F_SETFL, mode & ~O_NONBLOCK);
1.1 nicm 258: }
259:
260: void
261: tty_fill_acs(struct tty *tty)
262: {
263: const char *ptr;
264:
265: memset(tty->acs, 0, sizeof tty->acs);
266: if (!tty_term_has(tty->term, TTYC_ACSC))
267: return;
268:
269: ptr = tty_term_string(tty->term, TTYC_ACSC);
270: if (strlen(ptr) % 2 != 0)
271: return;
272: for (; *ptr != '\0'; ptr += 2)
273: tty->acs[(u_char) ptr[0]] = ptr[1];
274: }
275:
276: u_char
277: tty_get_acs(struct tty *tty, u_char ch)
278: {
279: if (tty->acs[ch] != '\0')
280: return (tty->acs[ch]);
281: return (ch);
282: }
283:
284: void
1.20 nicm 285: tty_close(struct tty *tty)
1.1 nicm 286: {
287: if (tty->log_fd != -1) {
288: close(tty->log_fd);
289: tty->log_fd = -1;
290: }
291:
1.67 nicm 292: evtimer_del(&tty->key_timer);
1.20 nicm 293: tty_stop_tty(tty);
1.1 nicm 294:
1.21 nicm 295: if (tty->flags & TTY_OPENED) {
1.66 nicm 296: bufferevent_free(tty->event);
297:
1.21 nicm 298: tty_term_free(tty->term);
299: tty_keys_free(tty);
300:
301: tty->flags &= ~TTY_OPENED;
302: }
1.1 nicm 303:
1.21 nicm 304: if (tty->fd != -1) {
305: close(tty->fd);
306: tty->fd = -1;
307: }
1.1 nicm 308: }
309:
310: void
1.20 nicm 311: tty_free(struct tty *tty)
1.1 nicm 312: {
1.20 nicm 313: tty_close(tty);
1.1 nicm 314:
315: if (tty->path != NULL)
316: xfree(tty->path);
317: if (tty->termname != NULL)
318: xfree(tty->termname);
319: }
320:
321: void
322: tty_raw(struct tty *tty, const char *s)
323: {
324: write(tty->fd, s, strlen(s));
325: }
326:
327: void
328: tty_putcode(struct tty *tty, enum tty_code_code code)
329: {
330: tty_puts(tty, tty_term_string(tty->term, code));
331: }
332:
333: void
334: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
335: {
336: if (a < 0)
337: return;
338: tty_puts(tty, tty_term_string1(tty->term, code, a));
339: }
340:
341: void
342: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
343: {
344: if (a < 0 || b < 0)
345: return;
346: tty_puts(tty, tty_term_string2(tty->term, code, a, b));
347: }
348:
349: void
350: tty_puts(struct tty *tty, const char *s)
351: {
352: if (*s == '\0')
353: return;
1.66 nicm 354: bufferevent_write(tty->event, s, strlen(s));
1.1 nicm 355:
356: if (tty->log_fd != -1)
357: write(tty->log_fd, s, strlen(s));
358: }
359:
360: void
361: tty_putc(struct tty *tty, u_char ch)
362: {
363: u_int sx;
364:
365: if (tty->cell.attr & GRID_ATTR_CHARSET)
366: ch = tty_get_acs(tty, ch);
1.66 nicm 367: bufferevent_write(tty->event, &ch, 1);
1.1 nicm 368:
369: if (ch >= 0x20 && ch != 0x7f) {
370: sx = tty->sx;
371: if (tty->term->flags & TERM_EARLYWRAP)
372: sx--;
373:
1.46 nicm 374: if (tty->cx >= sx) {
375: tty->cx = 1;
376: if (tty->cy != tty->rlower)
377: tty->cy++;
1.1 nicm 378: } else
379: tty->cx++;
380: }
381:
382: if (tty->log_fd != -1)
383: write(tty->log_fd, &ch, 1);
384: }
385:
386: void
1.5 nicm 387: tty_pututf8(struct tty *tty, const struct grid_utf8 *gu)
388: {
1.71 nicm 389: size_t size;
1.5 nicm 390:
1.71 nicm 391: size = grid_utf8_size(gu);
392: bufferevent_write(tty->event, gu->data, size);
393: if (tty->log_fd != -1)
394: write(tty->log_fd, gu->data, size);
1.54 nicm 395: tty->cx += gu->width;
1.5 nicm 396: }
397:
398: void
1.1 nicm 399: tty_set_title(struct tty *tty, const char *title)
400: {
401: if (strstr(tty->termname, "xterm") == NULL &&
402: strstr(tty->termname, "rxvt") == NULL &&
403: strcmp(tty->termname, "screen") != 0)
404: return;
405:
406: tty_puts(tty, "\033]0;");
407: tty_puts(tty, title);
408: tty_putc(tty, '\007');
409: }
410:
411: void
412: tty_update_mode(struct tty *tty, int mode)
413: {
414: int changed;
415:
416: if (tty->flags & TTY_NOCURSOR)
417: mode &= ~MODE_CURSOR;
418:
419: changed = mode ^ tty->mode;
420: if (changed & MODE_CURSOR) {
421: if (mode & MODE_CURSOR)
422: tty_putcode(tty, TTYC_CNORM);
423: else
424: tty_putcode(tty, TTYC_CIVIS);
425: }
1.86 nicm 426: if (changed & (MODE_MOUSE|MODE_MOUSEMOTION)) {
427: if (mode & MODE_MOUSE) {
428: if (mode & MODE_MOUSEMOTION)
429: tty_puts(tty, "\033[?1003h");
430: else
431: tty_puts(tty, "\033[?1000h");
432: } else {
433: if (mode & MODE_MOUSEMOTION)
434: tty_puts(tty, "\033[?1003l");
435: else
436: tty_puts(tty, "\033[?1000l");
437: }
1.76 nicm 438: }
439: if (changed & MODE_KKEYPAD) {
440: if (mode & MODE_KKEYPAD)
441: tty_putcode(tty, TTYC_SMKX);
442: else
443: tty_putcode(tty, TTYC_RMKX);
1.1 nicm 444: }
445: tty->mode = mode;
446: }
447:
448: void
449: tty_emulate_repeat(
450: struct tty *tty, enum tty_code_code code, enum tty_code_code code1, u_int n)
451: {
452: if (tty_term_has(tty->term, code))
453: tty_putcode1(tty, code, n);
454: else {
455: while (n-- > 0)
456: tty_putcode(tty, code1);
457: }
458: }
459:
460: /*
461: * Redraw scroll region using data from screen (already updated). Used when
462: * CSR not supported, or window is a pane that doesn't take up the full
463: * width of the terminal.
464: */
465: void
1.24 nicm 466: tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 467: {
1.14 nicm 468: struct window_pane *wp = ctx->wp;
469: struct screen *s = wp->screen;
470: u_int i;
1.1 nicm 471:
472: /*
473: * If region is >= 50% of the screen, just schedule a window redraw. In
474: * most cases, this is likely to be followed by some more scrolling -
475: * without this, the entire pane ends up being redrawn many times which
476: * can be much more data.
477: */
1.14 nicm 478: if (ctx->orupper - ctx->orlower >= screen_size_y(s) / 2) {
1.1 nicm 479: wp->flags |= PANE_REDRAW;
480: return;
481: }
482:
1.14 nicm 483: if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
484: for (i = ctx->ocy; i < screen_size_y(s); i++)
1.1 nicm 485: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
486: } else {
1.14 nicm 487: for (i = ctx->orupper; i <= ctx->orlower; i++)
1.1 nicm 488: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
489: }
490: }
491:
492: void
493: tty_draw_line(struct tty *tty, struct screen *s, u_int py, u_int ox, u_int oy)
494: {
495: const struct grid_cell *gc;
1.46 nicm 496: struct grid_line *gl;
1.16 nicm 497: struct grid_cell tmpgc;
1.1 nicm 498: const struct grid_utf8 *gu;
499: u_int i, sx;
500:
1.35 nicm 501: tty_update_mode(tty, tty->mode & ~MODE_CURSOR);
502:
1.1 nicm 503: sx = screen_size_x(s);
1.19 nicm 504: if (sx > s->grid->linedata[s->grid->hsize + py].cellsize)
505: sx = s->grid->linedata[s->grid->hsize + py].cellsize;
1.1 nicm 506: if (sx > tty->sx)
507: sx = tty->sx;
508:
1.46 nicm 509: /*
510: * Don't move the cursor to the start permission if it will wrap there
1.50 nicm 511: * itself.
1.46 nicm 512: */
513: gl = NULL;
514: if (py != 0)
515: gl = &s->grid->linedata[s->grid->hsize + py - 1];
1.83 nicm 516: if (oy + py == 0 || gl == NULL || !(gl->flags & GRID_LINE_WRAPPED) ||
1.47 nicm 517: tty->cx < tty->sx || ox != 0 ||
518: (oy + py != tty->cy + 1 && tty->cy != s->rlower + oy))
1.46 nicm 519: tty_cursor(tty, ox, oy + py);
520:
1.1 nicm 521: for (i = 0; i < sx; i++) {
522: gc = grid_view_peek_cell(s->grid, i, py);
523:
524: gu = NULL;
525: if (gc->flags & GRID_FLAG_UTF8)
526: gu = grid_view_peek_utf8(s->grid, i, py);
527:
528: if (screen_check_selection(s, i, py)) {
1.16 nicm 529: memcpy(&tmpgc, &s->sel.cell, sizeof tmpgc);
530: tmpgc.data = gc->data;
1.77 nicm 531: tmpgc.flags = gc->flags &
1.38 nicm 532: ~(GRID_FLAG_FG256|GRID_FLAG_BG256);
533: tmpgc.flags |= s->sel.cell.flags &
534: (GRID_FLAG_FG256|GRID_FLAG_BG256);
1.16 nicm 535: tty_cell(tty, &tmpgc, gu);
1.1 nicm 536: } else
537: tty_cell(tty, gc, gu);
538: }
539:
1.35 nicm 540: if (sx >= tty->sx) {
541: tty_update_mode(tty, tty->mode);
1.1 nicm 542: return;
1.35 nicm 543: }
1.1 nicm 544: tty_reset(tty);
545:
1.41 nicm 546: tty_cursor(tty, ox + sx, oy + py);
1.1 nicm 547: if (screen_size_x(s) >= tty->sx && tty_term_has(tty->term, TTYC_EL))
548: tty_putcode(tty, TTYC_EL);
549: else {
550: for (i = sx; i < screen_size_x(s); i++)
551: tty_putc(tty, ' ');
1.15 nicm 552: }
1.35 nicm 553: tty_update_mode(tty, tty->mode);
1.15 nicm 554: }
555:
556: void
1.24 nicm 557: tty_write(void (*cmdfn)(
558: struct tty *, const struct tty_ctx *), const struct tty_ctx *ctx)
1.15 nicm 559: {
560: struct window_pane *wp = ctx->wp;
561: struct client *c;
562: u_int i;
563:
1.75 nicm 564: /* wp can be NULL if updating the screen but not the terminal. */
1.15 nicm 565: if (wp == NULL)
566: return;
567:
568: if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
569: return;
570: if (wp->window->flags & WINDOW_HIDDEN || !window_pane_visible(wp))
571: return;
572:
573: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
574: c = ARRAY_ITEM(&clients, i);
575: if (c == NULL || c->session == NULL)
576: continue;
577: if (c->flags & CLIENT_SUSPENDED)
578: continue;
579:
580: if (c->session->curw->window == wp->window) {
1.89 ! nicm 581: if (c->tty.term == NULL)
! 582: continue;
! 583: if (c->tty.flags & (TTY_FREEZE|TTY_BACKOFF))
1.15 nicm 584: continue;
585: cmdfn(&c->tty, ctx);
586: }
1.1 nicm 587: }
588: }
589:
590: void
1.24 nicm 591: tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 592: {
1.77 nicm 593: struct window_pane *wp = ctx->wp;
1.12 nicm 594: struct screen *s = wp->screen;
1.24 nicm 595: u_int i;
1.1 nicm 596:
597: if (wp->xoff != 0 || screen_size_x(s) < tty->sx) {
1.14 nicm 598: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 599: return;
600: }
601:
602: tty_reset(tty);
603:
1.77 nicm 604: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41 nicm 605:
1.1 nicm 606: if (tty_term_has(tty->term, TTYC_ICH) ||
607: tty_term_has(tty->term, TTYC_ICH1))
1.12 nicm 608: tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
1.77 nicm 609: else if (tty_term_has(tty->term, TTYC_SMIR) &&
1.72 nicm 610: tty_term_has(tty->term, TTYC_RMIR)) {
1.1 nicm 611: tty_putcode(tty, TTYC_SMIR);
1.24 nicm 612: for (i = 0; i < ctx->num; i++)
1.1 nicm 613: tty_putc(tty, ' ');
614: tty_putcode(tty, TTYC_RMIR);
1.72 nicm 615: } else
616: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 617: }
618:
619: void
1.24 nicm 620: tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 621: {
1.77 nicm 622: struct window_pane *wp = ctx->wp;
1.12 nicm 623: struct screen *s = wp->screen;
1.1 nicm 624:
1.26 nicm 625: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
626: (!tty_term_has(tty->term, TTYC_DCH) &&
627: !tty_term_has(tty->term, TTYC_DCH1))) {
1.14 nicm 628: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 629: return;
630: }
631:
632: tty_reset(tty);
633:
1.77 nicm 634: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41 nicm 635:
1.26 nicm 636: if (tty_term_has(tty->term, TTYC_DCH) ||
637: tty_term_has(tty->term, TTYC_DCH1))
638: tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
1.1 nicm 639: }
640:
641: void
1.24 nicm 642: tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 643: {
1.77 nicm 644: struct window_pane *wp = ctx->wp;
1.12 nicm 645: struct screen *s = wp->screen;
1.1 nicm 646:
1.77 nicm 647: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
648: !tty_term_has(tty->term, TTYC_CSR) ||
1.72 nicm 649: !tty_term_has(tty->term, TTYC_IL1)) {
1.14 nicm 650: tty_redraw_region(tty, ctx);
1.1 nicm 651: return;
652: }
653:
654: tty_reset(tty);
655:
1.77 nicm 656: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
657: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1 nicm 658:
1.12 nicm 659: tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
1.1 nicm 660: }
661:
662: void
1.24 nicm 663: tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 664: {
1.77 nicm 665: struct window_pane *wp = ctx->wp;
1.12 nicm 666: struct screen *s = wp->screen;
1.1 nicm 667:
1.77 nicm 668: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
1.72 nicm 669: !tty_term_has(tty->term, TTYC_CSR) ||
670: !tty_term_has(tty->term, TTYC_DL1)) {
1.14 nicm 671: tty_redraw_region(tty, ctx);
1.1 nicm 672: return;
673: }
674:
675: tty_reset(tty);
676:
1.77 nicm 677: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
678: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1 nicm 679:
1.12 nicm 680: tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
1.1 nicm 681: }
682:
683: void
1.24 nicm 684: tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 685: {
1.77 nicm 686: struct window_pane *wp = ctx->wp;
1.12 nicm 687: struct screen *s = wp->screen;
688: u_int i;
1.1 nicm 689:
690: tty_reset(tty);
691:
1.77 nicm 692: tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.41 nicm 693:
1.1 nicm 694: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
695: tty_term_has(tty->term, TTYC_EL)) {
696: tty_putcode(tty, TTYC_EL);
697: } else {
698: for (i = 0; i < screen_size_x(s); i++)
699: tty_putc(tty, ' ');
700: }
701: }
702:
703: void
1.24 nicm 704: tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 705: {
1.77 nicm 706: struct window_pane *wp = ctx->wp;
1.12 nicm 707: struct screen *s = wp->screen;
708: u_int i;
1.1 nicm 709:
710: tty_reset(tty);
711:
1.41 nicm 712: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
713:
1.1 nicm 714: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
715: tty_term_has(tty->term, TTYC_EL))
716: tty_putcode(tty, TTYC_EL);
717: else {
1.14 nicm 718: for (i = ctx->ocx; i < screen_size_x(s); i++)
1.1 nicm 719: tty_putc(tty, ' ');
720: }
721: }
722:
723: void
1.24 nicm 724: tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 725: {
1.77 nicm 726: struct window_pane *wp = ctx->wp;
1.12 nicm 727: u_int i;
1.1 nicm 728:
729: tty_reset(tty);
730:
731: if (wp->xoff == 0 && tty_term_has(tty->term, TTYC_EL1)) {
1.41 nicm 732: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1 nicm 733: tty_putcode(tty, TTYC_EL1);
734: } else {
1.41 nicm 735: tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.14 nicm 736: for (i = 0; i < ctx->ocx + 1; i++)
1.1 nicm 737: tty_putc(tty, ' ');
738: }
739: }
740:
741: void
1.24 nicm 742: tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 743: {
1.77 nicm 744: struct window_pane *wp = ctx->wp;
1.12 nicm 745: struct screen *s = wp->screen;
1.1 nicm 746:
1.56 nicm 747: if (ctx->ocy != ctx->orupper)
748: return;
749:
1.77 nicm 750: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
1.70 nicm 751: !tty_term_has(tty->term, TTYC_CSR) ||
752: !tty_term_has(tty->term, TTYC_RI)) {
1.14 nicm 753: tty_redraw_region(tty, ctx);
1.1 nicm 754: return;
755: }
756:
1.56 nicm 757: tty_reset(tty);
1.77 nicm 758:
1.56 nicm 759: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
760: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
1.77 nicm 761:
1.56 nicm 762: tty_putcode(tty, TTYC_RI);
1.1 nicm 763: }
764:
765: void
1.24 nicm 766: tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 767: {
1.77 nicm 768: struct window_pane *wp = ctx->wp;
1.12 nicm 769: struct screen *s = wp->screen;
1.1 nicm 770:
1.56 nicm 771: if (ctx->ocy != ctx->orlower)
772: return;
773:
1.77 nicm 774: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
1.1 nicm 775: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 776: tty_redraw_region(tty, ctx);
1.1 nicm 777: return;
778: }
1.52 nicm 779:
780: /*
781: * If this line wrapped naturally (ctx->num is nonzero), don't do
782: * anything - the cursor can just be moved to the last cell and wrap
783: * naturally.
784: */
785: if (ctx->num && !(tty->term->flags & TERM_EARLYWRAP))
786: return;
1.1 nicm 787:
1.56 nicm 788: tty_reset(tty);
1.77 nicm 789:
1.56 nicm 790: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
791: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.77 nicm 792:
1.56 nicm 793: tty_putc(tty, '\n');
1.1 nicm 794: }
795:
796: void
1.24 nicm 797: tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 798: {
1.77 nicm 799: struct window_pane *wp = ctx->wp;
1.12 nicm 800: struct screen *s = wp->screen;
801: u_int i, j;
1.1 nicm 802:
803: tty_reset(tty);
804:
1.39 nicm 805: tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41 nicm 806: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.39 nicm 807:
1.1 nicm 808: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
809: tty_term_has(tty->term, TTYC_EL)) {
810: tty_putcode(tty, TTYC_EL);
1.14 nicm 811: if (ctx->ocy != screen_size_y(s) - 1) {
1.41 nicm 812: tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
1.14 nicm 813: for (i = ctx->ocy + 1; i < screen_size_y(s); i++) {
1.1 nicm 814: tty_putcode(tty, TTYC_EL);
815: if (i == screen_size_y(s) - 1)
816: continue;
817: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
818: tty->cy++;
819: }
820: }
821: } else {
1.14 nicm 822: for (i = ctx->ocx; i < screen_size_x(s); i++)
1.1 nicm 823: tty_putc(tty, ' ');
1.68 nicm 824: for (j = ctx->ocy + 1; j < screen_size_y(s); j++) {
1.41 nicm 825: tty_cursor_pane(tty, ctx, 0, j);
1.1 nicm 826: for (i = 0; i < screen_size_x(s); i++)
827: tty_putc(tty, ' ');
828: }
829: }
830: }
831:
832: void
1.24 nicm 833: tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 834: {
1.77 nicm 835: struct window_pane *wp = ctx->wp;
1.12 nicm 836: struct screen *s = wp->screen;
837: u_int i, j;
1.1 nicm 838:
839: tty_reset(tty);
840:
1.39 nicm 841: tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41 nicm 842: tty_cursor_pane(tty, ctx, 0, 0);
1.39 nicm 843:
1.1 nicm 844: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
845: tty_term_has(tty->term, TTYC_EL)) {
1.14 nicm 846: for (i = 0; i < ctx->ocy; i++) {
1.1 nicm 847: tty_putcode(tty, TTYC_EL);
848: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
849: tty->cy++;
850: }
851: } else {
1.14 nicm 852: for (j = 0; j < ctx->ocy; j++) {
1.41 nicm 853: tty_cursor_pane(tty, ctx, 0, j);
1.1 nicm 854: for (i = 0; i < screen_size_x(s); i++)
855: tty_putc(tty, ' ');
856: }
857: }
1.14 nicm 858: for (i = 0; i <= ctx->ocx; i++)
1.1 nicm 859: tty_putc(tty, ' ');
860: }
861:
862: void
1.24 nicm 863: tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 864: {
1.77 nicm 865: struct window_pane *wp = ctx->wp;
1.12 nicm 866: struct screen *s = wp->screen;
867: u_int i, j;
1.1 nicm 868:
869: tty_reset(tty);
870:
1.39 nicm 871: tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41 nicm 872: tty_cursor_pane(tty, ctx, 0, 0);
1.39 nicm 873:
1.1 nicm 874: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
875: tty_term_has(tty->term, TTYC_EL)) {
876: for (i = 0; i < screen_size_y(s); i++) {
877: tty_putcode(tty, TTYC_EL);
878: if (i != screen_size_y(s) - 1) {
879: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
880: tty->cy++;
881: }
882: }
883: } else {
884: for (j = 0; j < screen_size_y(s); j++) {
1.41 nicm 885: tty_cursor_pane(tty, ctx, 0, j);
1.1 nicm 886: for (i = 0; i < screen_size_x(s); i++)
887: tty_putc(tty, ' ');
888: }
1.4 nicm 889: }
890: }
891:
892: void
1.24 nicm 893: tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
1.4 nicm 894: {
1.12 nicm 895: struct window_pane *wp = ctx->wp;
896: struct screen *s = wp->screen;
897: u_int i, j;
1.4 nicm 898:
899: tty_reset(tty);
900:
1.39 nicm 901: tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.4 nicm 902:
903: for (j = 0; j < screen_size_y(s); j++) {
1.41 nicm 904: tty_cursor_pane(tty, ctx, 0, j);
1.4 nicm 905: for (i = 0; i < screen_size_x(s); i++)
906: tty_putc(tty, 'E');
1.1 nicm 907: }
908: }
909:
910: void
1.24 nicm 911: tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 912: {
1.46 nicm 913: struct window_pane *wp = ctx->wp;
914: struct screen *s = wp->screen;
1.58 nicm 915: u_int cx;
1.46 nicm 916:
917: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
918:
1.57 nicm 919: /* Is the cursor in the very last position? */
920: if (ctx->ocx > wp->sx - ctx->last_width) {
921: if (wp->xoff != 0 || wp->sx != tty->sx) {
922: /*
923: * The pane doesn't fill the entire line, the linefeed
924: * will already have happened, so just move the cursor.
925: */
926: tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
927: } else if (tty->cx < tty->sx) {
928: /*
929: * The cursor isn't in the last position already, so
930: * move as far left as possinble and redraw the last
931: * cell to move into the last position.
932: */
1.50 nicm 933: cx = screen_size_x(s) - ctx->last_width;
934: tty_cursor_pane(tty, ctx, cx, ctx->ocy);
935: tty_cell(tty, &ctx->last_cell, &ctx->last_utf8);
936: }
937: } else
1.46 nicm 938: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1 nicm 939:
1.12 nicm 940: tty_cell(tty, ctx->cell, ctx->utf8);
1.1 nicm 941: }
942:
943: void
1.24 nicm 944: tty_cmd_utf8character(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 945: {
1.53 nicm 946: struct window_pane *wp = ctx->wp;
1.1 nicm 947:
1.53 nicm 948: /*
949: * Cannot rely on not being a partial character, so just redraw the
950: * whole line.
951: */
1.77 nicm 952: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 953: }
954:
955: void
956: tty_cell(
957: struct tty *tty, const struct grid_cell *gc, const struct grid_utf8 *gu)
958: {
959: u_int i;
960:
961: /* Skip last character if terminal is stupid. */
962: if (tty->term->flags & TERM_EARLYWRAP &&
963: tty->cy == tty->sy - 1 && tty->cx == tty->sx - 1)
964: return;
965:
966: /* If this is a padding character, do nothing. */
967: if (gc->flags & GRID_FLAG_PADDING)
968: return;
969:
970: /* Set the attributes. */
971: tty_attributes(tty, gc);
972:
973: /* If not UTF-8, write directly. */
974: if (!(gc->flags & GRID_FLAG_UTF8)) {
975: if (gc->data < 0x20 || gc->data == 0x7f)
976: return;
977: tty_putc(tty, gc->data);
978: return;
979: }
980:
981: /* If the terminal doesn't support UTF-8, write underscores. */
982: if (!(tty->flags & TTY_UTF8)) {
983: for (i = 0; i < gu->width; i++)
984: tty_putc(tty, '_');
985: return;
986: }
987:
988: /* Otherwise, write UTF-8. */
1.5 nicm 989: tty_pututf8(tty, gu);
1.1 nicm 990: }
991:
992: void
993: tty_reset(struct tty *tty)
994: {
995: struct grid_cell *gc = &tty->cell;
996:
997: if (memcmp(gc, &grid_default_cell, sizeof *gc) == 0)
998: return;
999:
1000: if (tty_term_has(tty->term, TTYC_RMACS) && gc->attr & GRID_ATTR_CHARSET)
1001: tty_putcode(tty, TTYC_RMACS);
1002: tty_putcode(tty, TTYC_SGR0);
1003: memcpy(gc, &grid_default_cell, sizeof *gc);
1004: }
1005:
1.40 nicm 1006: /* Set region inside pane. */
1.1 nicm 1007: void
1.39 nicm 1008: tty_region_pane(
1009: struct tty *tty, const struct tty_ctx *ctx, u_int rupper, u_int rlower)
1.1 nicm 1010: {
1.77 nicm 1011: struct window_pane *wp = ctx->wp;
1.39 nicm 1012:
1.40 nicm 1013: tty_region(tty, wp->yoff + rupper, wp->yoff + rlower);
1.39 nicm 1014: }
1015:
1.40 nicm 1016: /* Set region at absolute position. */
1.39 nicm 1017: void
1.40 nicm 1018: tty_region(struct tty *tty, u_int rupper, u_int rlower)
1.39 nicm 1019: {
1020: if (tty->rlower == rlower && tty->rupper == rupper)
1021: return;
1.1 nicm 1022: if (!tty_term_has(tty->term, TTYC_CSR))
1023: return;
1.39 nicm 1024:
1025: tty->rupper = rupper;
1026: tty->rlower = rlower;
1.55 nicm 1027:
1028: /*
1029: * Some terminals (such as PuTTY) do not correctly reset the cursor to
1030: * 0,0 if it is beyond the last column (they do not reset their wrap
1031: * flag so further output causes a line feed). As a workaround, do an
1032: * explicit move to 0 first.
1033: */
1034: if (tty->cx >= tty->sx)
1035: tty_cursor(tty, 0, tty->cy);
1.42 nicm 1036:
1.39 nicm 1037: tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1.78 nicm 1038: tty_cursor(tty, 0, 0);
1.1 nicm 1039: }
1040:
1.42 nicm 1041: /* Move cursor inside pane. */
1.1 nicm 1042: void
1.41 nicm 1043: tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
1044: {
1.77 nicm 1045: struct window_pane *wp = ctx->wp;
1.41 nicm 1046:
1047: tty_cursor(tty, wp->xoff + cx, wp->yoff + cy);
1048: }
1049:
1.42 nicm 1050: /* Move cursor to absolute position. */
1.41 nicm 1051: void
1052: tty_cursor(struct tty *tty, u_int cx, u_int cy)
1.1 nicm 1053: {
1.42 nicm 1054: struct tty_term *term = tty->term;
1055: u_int thisx, thisy;
1056: int change;
1.77 nicm 1057:
1.42 nicm 1058: if (cx > tty->sx - 1)
1059: cx = tty->sx - 1;
1060:
1061: thisx = tty->cx;
1062: thisy = tty->cy;
1063:
1064: /* No change. */
1065: if (cx == thisx && cy == thisy)
1066: return;
1067:
1.43 nicm 1068: /* Very end of the line, just use absolute movement. */
1069: if (thisx > tty->sx - 1)
1070: goto absolute;
1071:
1.42 nicm 1072: /* Move to home position (0, 0). */
1073: if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
1074: tty_putcode(tty, TTYC_HOME);
1075: goto out;
1076: }
1077:
1078: /* Zero on the next line. */
1.48 nicm 1079: if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower) {
1.1 nicm 1080: tty_putc(tty, '\r');
1.42 nicm 1081: tty_putc(tty, '\n');
1082: goto out;
1083: }
1084:
1.45 nicm 1085: /* Moving column or row. */
1.42 nicm 1086: if (cy == thisy) {
1.45 nicm 1087: /*
1088: * Moving column only, row staying the same.
1089: */
1090:
1.42 nicm 1091: /* To left edge. */
1092: if (cx == 0) {
1093: tty_putc(tty, '\r');
1094: goto out;
1095: }
1096:
1097: /* One to the left. */
1098: if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) {
1099: tty_putcode(tty, TTYC_CUB1);
1100: goto out;
1101: }
1102:
1103: /* One to the right. */
1104: if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) {
1105: tty_putcode(tty, TTYC_CUF1);
1106: goto out;
1107: }
1108:
1109: /* Calculate difference. */
1110: change = thisx - cx; /* +ve left, -ve right */
1111:
1112: /*
1113: * Use HPA if change is larger than absolute, otherwise move
1114: * the cursor with CUB/CUF.
1115: */
1.87 nicm 1116: if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) {
1.42 nicm 1117: tty_putcode1(tty, TTYC_HPA, cx);
1118: goto out;
1119: } else if (change > 0 && tty_term_has(term, TTYC_CUB)) {
1120: tty_putcode1(tty, TTYC_CUB, change);
1121: goto out;
1122: } else if (change < 0 && tty_term_has(term, TTYC_CUF)) {
1123: tty_putcode1(tty, TTYC_CUF, -change);
1124: goto out;
1125: }
1.45 nicm 1126: } else if (cx == thisx) {
1127: /*
1128: * Moving row only, column staying the same.
1129: */
1.42 nicm 1130:
1131: /* One above. */
1.77 nicm 1132: if (thisy != tty->rupper &&
1.42 nicm 1133: cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) {
1134: tty_putcode(tty, TTYC_CUU1);
1135: goto out;
1136: }
1137:
1138: /* One below. */
1.49 nicm 1139: if (thisy != tty->rlower &&
1.42 nicm 1140: cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) {
1141: tty_putcode(tty, TTYC_CUD1);
1142: goto out;
1143: }
1144:
1145: /* Calculate difference. */
1146: change = thisy - cy; /* +ve up, -ve down */
1147:
1148: /*
1.77 nicm 1149: * Try to use VPA if change is larger than absolute or if this
1150: * change would cross the scroll region, otherwise use CUU/CUD.
1.42 nicm 1151: */
1.87 nicm 1152: if ((u_int) abs(change) > cy ||
1.42 nicm 1153: (change < 0 && cy - change > tty->rlower) ||
1.44 nicm 1154: (change > 0 && cy - change < tty->rupper)) {
1155: if (tty_term_has(term, TTYC_VPA)) {
1156: tty_putcode1(tty, TTYC_VPA, cy);
1157: goto out;
1158: }
1.42 nicm 1159: } else if (change > 0 && tty_term_has(term, TTYC_CUU)) {
1160: tty_putcode1(tty, TTYC_CUU, change);
1161: goto out;
1162: } else if (change < 0 && tty_term_has(term, TTYC_CUD)) {
1163: tty_putcode1(tty, TTYC_CUD, -change);
1164: goto out;
1165: }
1166: }
1167:
1.43 nicm 1168: absolute:
1.42 nicm 1169: /* Absolute movement. */
1170: tty_putcode2(tty, TTYC_CUP, cy, cx);
1171:
1172: out:
1173: tty->cx = cx;
1174: tty->cy = cy;
1.1 nicm 1175: }
1176:
1177: void
1178: tty_attributes(struct tty *tty, const struct grid_cell *gc)
1179: {
1.63 nicm 1180: struct grid_cell *tc = &tty->cell, gc2;
1.85 nicm 1181: u_char changed;
1.61 nicm 1182:
1.85 nicm 1183: memcpy(&gc2, gc, sizeof gc2);
1.63 nicm 1184:
1.18 nicm 1185: /*
1186: * If no setab, try to use the reverse attribute as a best-effort for a
1187: * non-default background. This is a bit of a hack but it doesn't do
1188: * any serious harm and makes a couple of applications happier.
1189: */
1190: if (!tty_term_has(tty->term, TTYC_SETAB)) {
1.85 nicm 1191: if (gc2.attr & GRID_ATTR_REVERSE) {
1192: if (gc2.fg != 7 && gc2.fg != 8)
1.64 nicm 1193: gc2.attr &= ~GRID_ATTR_REVERSE;
1.18 nicm 1194: } else {
1.85 nicm 1195: if (gc2.bg != 0 && gc2.bg != 8)
1.64 nicm 1196: gc2.attr |= GRID_ATTR_REVERSE;
1.18 nicm 1197: }
1198: }
1.1 nicm 1199:
1.85 nicm 1200: /* Fix up the colours if necessary. */
1201: tty_check_fg(tty, &gc2);
1202: tty_check_bg(tty, &gc2);
1203:
1.64 nicm 1204: /* If any bits are being cleared, reset everything. */
1.85 nicm 1205: if (tc->attr & ~gc2.attr)
1.64 nicm 1206: tty_reset(tty);
1207:
1208: /*
1209: * Set the colours. This may call tty_reset() (so it comes next) and
1210: * may add to (NOT remove) the desired attributes by changing new_attr.
1211: */
1.85 nicm 1212: tty_colours(tty, &gc2);
1.64 nicm 1213:
1.1 nicm 1214: /* Filter out attribute bits already set. */
1.85 nicm 1215: changed = gc2.attr & ~tc->attr;
1216: tc->attr = gc2.attr;
1.1 nicm 1217:
1218: /* Set the attributes. */
1219: if (changed & GRID_ATTR_BRIGHT)
1220: tty_putcode(tty, TTYC_BOLD);
1221: if (changed & GRID_ATTR_DIM)
1222: tty_putcode(tty, TTYC_DIM);
1223: if (changed & GRID_ATTR_ITALICS)
1224: tty_putcode(tty, TTYC_SMSO);
1225: if (changed & GRID_ATTR_UNDERSCORE)
1226: tty_putcode(tty, TTYC_SMUL);
1227: if (changed & GRID_ATTR_BLINK)
1228: tty_putcode(tty, TTYC_BLINK);
1229: if (changed & GRID_ATTR_REVERSE) {
1230: if (tty_term_has(tty->term, TTYC_REV))
1231: tty_putcode(tty, TTYC_REV);
1232: else if (tty_term_has(tty->term, TTYC_SMSO))
1233: tty_putcode(tty, TTYC_SMSO);
1234: }
1235: if (changed & GRID_ATTR_HIDDEN)
1236: tty_putcode(tty, TTYC_INVIS);
1237: if (changed & GRID_ATTR_CHARSET)
1238: tty_putcode(tty, TTYC_SMACS);
1239: }
1240:
1.61 nicm 1241: void
1.85 nicm 1242: tty_colours(struct tty *tty, const struct grid_cell *gc)
1.1 nicm 1243: {
1.61 nicm 1244: struct grid_cell *tc = &tty->cell;
1.62 nicm 1245: u_char fg = gc->fg, bg = gc->bg, flags = gc->flags;
1246: int have_ax, fg_default, bg_default;
1.61 nicm 1247:
1248: /* No changes? Nothing is necessary. */
1.62 nicm 1249: if (fg == tc->fg && bg == tc->bg &&
1250: ((flags ^ tc->flags) & (GRID_FLAG_FG256|GRID_FLAG_BG256)) == 0)
1.63 nicm 1251: return;
1.1 nicm 1252:
1.61 nicm 1253: /*
1254: * Is either the default colour? This is handled specially because the
1255: * best solution might be to reset both colours to default, in which
1256: * case if only one is default need to fall onward to set the other
1257: * colour.
1258: */
1.62 nicm 1259: fg_default = (fg == 8 && !(flags & GRID_FLAG_FG256));
1260: bg_default = (bg == 8 && !(flags & GRID_FLAG_BG256));
1.61 nicm 1261: if (fg_default || bg_default) {
1262: /*
1263: * If don't have AX but do have op, send sgr0 (op can't
1264: * actually be used because it is sometimes the same as sgr0
1265: * and sometimes isn't). This resets both colours to default.
1266: *
1267: * Otherwise, try to set the default colour only as needed.
1268: */
1269: have_ax = tty_term_has(tty->term, TTYC_AX);
1270: if (!have_ax && tty_term_has(tty->term, TTYC_OP))
1271: tty_reset(tty);
1272: else {
1273: if (fg_default &&
1.81 nicm 1274: (tc->fg != 8 || tc->flags & GRID_FLAG_FG256)) {
1.61 nicm 1275: if (have_ax)
1276: tty_puts(tty, "\033[39m");
1.81 nicm 1277: else if (tc->fg != 7 ||
1278: tc->flags & GRID_FLAG_FG256)
1.61 nicm 1279: tty_putcode1(tty, TTYC_SETAF, 7);
1280: tc->fg = 8;
1281: tc->flags &= ~GRID_FLAG_FG256;
1282: }
1283: if (bg_default &&
1.81 nicm 1284: (tc->bg != 8 || tc->flags & GRID_FLAG_BG256)) {
1.77 nicm 1285: if (have_ax)
1.61 nicm 1286: tty_puts(tty, "\033[49m");
1.81 nicm 1287: else if (tc->bg != 0 ||
1288: tc->flags & GRID_FLAG_BG256)
1.61 nicm 1289: tty_putcode1(tty, TTYC_SETAB, 0);
1290: tc->bg = 8;
1291: tc->flags &= ~GRID_FLAG_BG256;
1292: }
1293: }
1294: }
1.1 nicm 1295:
1.61 nicm 1296: /* Set the foreground colour. */
1297: if (!fg_default && (fg != tc->fg ||
1.62 nicm 1298: ((flags & GRID_FLAG_FG256) != (tc->flags & GRID_FLAG_FG256))))
1.85 nicm 1299: tty_colours_fg(tty, gc);
1.1 nicm 1300:
1.61 nicm 1301: /*
1302: * Set the background colour. This must come after the foreground as
1303: * tty_colour_fg() can call tty_reset().
1304: */
1305: if (!bg_default && (bg != tc->bg ||
1.62 nicm 1306: ((flags & GRID_FLAG_BG256) != (tc->flags & GRID_FLAG_BG256))))
1.73 nicm 1307: tty_colours_bg(tty, gc);
1.1 nicm 1308: }
1309:
1310: void
1.85 nicm 1311: tty_check_fg(struct tty *tty, struct grid_cell *gc)
1312: {
1313: u_int colours;
1314:
1315: /* Is this a 256-colour colour? */
1316: if (gc->flags & GRID_FLAG_FG256) {
1317: /* And not a 256 colour mode? */
1318: if (!(tty->term->flags & TERM_88COLOURS) &&
1319: !(tty->term_flags & TERM_88COLOURS) &&
1320: !(tty->term->flags & TERM_256COLOURS) &&
1321: !(tty->term_flags & TERM_256COLOURS)) {
1322: gc->fg = colour_256to16(gc->fg);
1323: if (gc->fg & 8) {
1324: gc->fg &= 7;
1325: gc->attr |= GRID_ATTR_BRIGHT;
1326: } else
1327: gc->attr &= ~GRID_ATTR_BRIGHT;
1328: gc->flags &= ~GRID_FLAG_FG256;
1329: }
1330: return;
1331: }
1332:
1333: /* Is this an aixterm colour? */
1334: colours = tty_term_number(tty->term, TTYC_COLORS);
1335: if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) {
1336: gc->fg -= 90;
1337: gc->attr |= GRID_ATTR_BRIGHT;
1338: }
1339: }
1340:
1341: void
1342: tty_check_bg(struct tty *tty, struct grid_cell *gc)
1343: {
1344: u_int colours;
1345:
1346: /* Is this a 256-colour colour? */
1347: if (gc->flags & GRID_FLAG_BG256) {
1348: /*
1349: * And not a 256 colour mode? Translate to 16-colour
1350: * palette. Bold background doesn't exist portably, so just
1351: * discard the bold bit if set.
1352: */
1353: if (!(tty->term->flags & TERM_88COLOURS) &&
1354: !(tty->term_flags & TERM_88COLOURS) &&
1355: !(tty->term->flags & TERM_256COLOURS) &&
1356: !(tty->term_flags & TERM_256COLOURS)) {
1357: gc->bg = colour_256to16(gc->bg);
1358: if (gc->bg & 8)
1359: gc->bg &= 7;
1360: gc->attr &= ~GRID_ATTR_BRIGHT;
1361: gc->flags &= ~GRID_FLAG_BG256;
1362: }
1363: return;
1364: }
1365:
1366: /* Is this an aixterm colour? */
1367: colours = tty_term_number(tty->term, TTYC_COLORS);
1368: if (gc->bg >= 100 && gc->bg <= 107 && colours < 16) {
1369: gc->bg -= 90;
1370: gc->attr |= GRID_ATTR_BRIGHT;
1371: }
1372: }
1373:
1374: void
1375: tty_colours_fg(struct tty *tty, const struct grid_cell *gc)
1.1 nicm 1376: {
1.61 nicm 1377: struct grid_cell *tc = &tty->cell;
1378: u_char fg = gc->fg;
1.79 nicm 1379: char s[32];
1.1 nicm 1380:
1.61 nicm 1381: /* Is this a 256-colour colour? */
1.1 nicm 1382: if (gc->flags & GRID_FLAG_FG256) {
1.61 nicm 1383: /* Try as 256 colours or translating to 88. */
1.1 nicm 1384: if (tty_try_256(tty, fg, "38") == 0)
1.61 nicm 1385: goto save_fg;
1.1 nicm 1386: if (tty_try_88(tty, fg, "38") == 0)
1.61 nicm 1387: goto save_fg;
1.85 nicm 1388: /* Else already handled by tty_check_fg. */
1389: return;
1.1 nicm 1390: }
1391:
1.79 nicm 1392: /* Is this an aixterm bright colour? */
1393: if (fg >= 90 && fg <= 97) {
1.85 nicm 1394: xsnprintf(s, sizeof s, "\033[%dm", fg);
1395: tty_puts(tty, s);
1396: goto save_fg;
1.79 nicm 1397: }
1398:
1.61 nicm 1399: /* Otherwise set the foreground colour. */
1400: tty_putcode1(tty, TTYC_SETAF, fg);
1401:
1.77 nicm 1402: save_fg:
1.61 nicm 1403: /* Save the new values in the terminal current cell. */
1404: tc->fg = fg;
1405: tc->flags &= ~GRID_FLAG_FG256;
1406: tc->flags |= gc->flags & GRID_FLAG_FG256;
1.1 nicm 1407: }
1408:
1409: void
1.73 nicm 1410: tty_colours_bg(struct tty *tty, const struct grid_cell *gc)
1.1 nicm 1411: {
1.61 nicm 1412: struct grid_cell *tc = &tty->cell;
1413: u_char bg = gc->bg;
1.79 nicm 1414: char s[32];
1.1 nicm 1415:
1.61 nicm 1416: /* Is this a 256-colour colour? */
1.1 nicm 1417: if (gc->flags & GRID_FLAG_BG256) {
1.61 nicm 1418: /* Try as 256 colours or translating to 88. */
1.1 nicm 1419: if (tty_try_256(tty, bg, "48") == 0)
1.61 nicm 1420: goto save_bg;
1.1 nicm 1421: if (tty_try_88(tty, bg, "48") == 0)
1.61 nicm 1422: goto save_bg;
1.85 nicm 1423: /* Else already handled by tty_check_bg. */
1424: return;
1.79 nicm 1425: }
1426:
1427: /* Is this an aixterm bright colour? */
1428: if (bg >= 100 && bg <= 107) {
1429: /* 16 colour terminals or above only. */
1430: if (tty_term_number(tty->term, TTYC_COLORS) >= 16) {
1431: xsnprintf(s, sizeof s, "\033[%dm", bg);
1432: tty_puts(tty, s);
1433: goto save_bg;
1434: }
1435: bg -= 100;
1436: /* no such thing as a bold background */
1.1 nicm 1437: }
1438:
1.61 nicm 1439: /* Otherwise set the background colour. */
1440: tty_putcode1(tty, TTYC_SETAB, bg);
1441:
1442: save_bg:
1443: /* Save the new values in the terminal current cell. */
1444: tc->bg = bg;
1445: tc->flags &= ~GRID_FLAG_BG256;
1446: tc->flags |= gc->flags & GRID_FLAG_BG256;
1447: }
1448:
1449: int
1450: tty_try_256(struct tty *tty, u_char colour, const char *type)
1451: {
1452: char s[32];
1453:
1454: if (!(tty->term->flags & TERM_256COLOURS) &&
1455: !(tty->term_flags & TERM_256COLOURS))
1456: return (-1);
1457:
1458: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1459: tty_puts(tty, s);
1460: return (0);
1461: }
1462:
1463: int
1464: tty_try_88(struct tty *tty, u_char colour, const char *type)
1465: {
1466: char s[32];
1467:
1468: if (!(tty->term->flags & TERM_88COLOURS) &&
1469: !(tty->term_flags & TERM_88COLOURS))
1470: return (-1);
1471: colour = colour_256to88(colour);
1472:
1473: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1474: tty_puts(tty, s);
1475: return (0);
1.1 nicm 1476: }
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