Annotation of src/usr.bin/tmux/tty.c, Revision 1.86
1.86 ! nicm 1: /* $OpenBSD: tty.c,v 1.85 2010/03/01 22:44:31 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:
76: void
77: tty_resize(struct tty *tty)
78: {
79: struct winsize ws;
80:
81: if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
82: tty->sx = ws.ws_col;
83: tty->sy = ws.ws_row;
84: }
85: if (tty->sx == 0)
86: tty->sx = 80;
87: if (tty->sy == 0)
88: tty->sy = 24;
89:
90: tty->cx = UINT_MAX;
91: tty->cy = UINT_MAX;
92:
93: tty->rupper = UINT_MAX;
94: tty->rlower = UINT_MAX;
1.1 nicm 95: }
96:
97: int
1.17 nicm 98: tty_open(struct tty *tty, const char *overrides, char **cause)
1.1 nicm 99: {
1.30 nicm 100: int fd;
1.1 nicm 101:
1.30 nicm 102: if (debug_level > 3) {
103: fd = open("tmux.out", O_WRONLY|O_CREAT|O_TRUNC, 0644);
104: if (fd != -1 && fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
105: fatal("fcntl failed");
106: tty->log_fd = fd;
1.1 nicm 107: }
108:
1.17 nicm 109: tty->term = tty_term_find(tty->termname, tty->fd, overrides, cause);
1.21 nicm 110: if (tty->term == NULL) {
111: tty_close(tty);
112: return (-1);
113: }
114: tty->flags |= TTY_OPENED;
1.1 nicm 115:
1.66 nicm 116: tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_ESCAPE);
1.1 nicm 117:
1.66 nicm 118: tty->event = bufferevent_new(
1.67 nicm 119: tty->fd, tty_read_callback, NULL, tty_error_callback, tty);
1.1 nicm 120:
121: tty_start_tty(tty);
122:
123: tty_keys_init(tty);
124:
125: tty_fill_acs(tty);
126:
127: return (0);
128: }
129:
1.73 nicm 130: /* ARGSUSED */
1.1 nicm 131: void
1.67 nicm 132: tty_read_callback(unused struct bufferevent *bufev, void *data)
133: {
134: struct tty *tty = data;
135:
136: while (tty_keys_next(tty))
137: ;
138: }
139:
1.73 nicm 140: /* ARGSUSED */
1.67 nicm 141: void
1.66 nicm 142: tty_error_callback(
143: unused struct bufferevent *bufev, unused short what, unused void *data)
144: {
145: }
146:
147: void
1.1 nicm 148: tty_start_tty(struct tty *tty)
149: {
150: struct termios tio;
1.82 nicm 151: int mode;
1.33 nicm 152:
153: if (tty->fd == -1)
154: return;
1.1 nicm 155:
1.34 nicm 156: if ((mode = fcntl(tty->fd, F_GETFL)) == -1)
157: fatal("fcntl failed");
158: if (fcntl(tty->fd, F_SETFL, mode|O_NONBLOCK) == -1)
159: fatal("fcntl failed");
160:
1.66 nicm 161: bufferevent_enable(tty->event, EV_READ|EV_WRITE);
162:
1.1 nicm 163: if (tcgetattr(tty->fd, &tty->tio) != 0)
164: fatal("tcgetattr failed");
165: memcpy(&tio, &tty->tio, sizeof tio);
166: tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
167: tio.c_iflag |= IGNBRK;
168: tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
169: tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
170: ECHOPRT|ECHOKE|ECHOCTL|ISIG);
171: tio.c_cc[VMIN] = 1;
1.60 deraadt 172: tio.c_cc[VTIME] = 0;
1.1 nicm 173: if (tcsetattr(tty->fd, TCSANOW, &tio) != 0)
174: fatal("tcsetattr failed");
1.82 nicm 175: tcflush(tty->fd, TCIOFLUSH);
1.1 nicm 176:
1.10 nicm 177: tty_putcode(tty, TTYC_SMCUP);
1.1 nicm 178:
1.25 nicm 179: tty_putcode(tty, TTYC_SGR0);
180: memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
181:
1.76 nicm 182: tty_putcode(tty, TTYC_RMKX);
1.1 nicm 183: tty_putcode(tty, TTYC_ENACS);
184: tty_putcode(tty, TTYC_CLEAR);
185:
186: tty_putcode(tty, TTYC_CNORM);
187: if (tty_term_has(tty->term, TTYC_KMOUS))
188: tty_puts(tty, "\033[?1000l");
189:
190: tty->cx = UINT_MAX;
191: tty->cy = UINT_MAX;
192:
193: tty->rlower = UINT_MAX;
194: tty->rupper = UINT_MAX;
195:
196: tty->mode = MODE_CURSOR;
1.20 nicm 197:
198: tty->flags |= TTY_STARTED;
1.1 nicm 199: }
200:
201: void
202: tty_stop_tty(struct tty *tty)
203: {
204: struct winsize ws;
1.34 nicm 205: int mode;
1.1 nicm 206:
1.20 nicm 207: if (!(tty->flags & TTY_STARTED))
208: return;
209: tty->flags &= ~TTY_STARTED;
210:
1.66 nicm 211: bufferevent_disable(tty->event, EV_READ|EV_WRITE);
212:
1.1 nicm 213: /*
214: * Be flexible about error handling and try not kill the server just
215: * because the fd is invalid. Things like ssh -t can easily leave us
216: * with a dead tty.
217: */
218: if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
219: return;
220: if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
221: return;
222:
223: tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
224: tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
225: tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
226: tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
227: tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
228:
229: tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
230: if (tty_term_has(tty->term, TTYC_KMOUS))
231: tty_raw(tty, "\033[?1000l");
1.10 nicm 232:
233: tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
1.84 nicm 234:
235: if ((mode = fcntl(tty->fd, F_GETFL)) != -1)
236: fcntl(tty->fd, F_SETFL, mode & ~O_NONBLOCK);
1.1 nicm 237: }
238:
239: void
240: tty_fill_acs(struct tty *tty)
241: {
242: const char *ptr;
243:
244: memset(tty->acs, 0, sizeof tty->acs);
245: if (!tty_term_has(tty->term, TTYC_ACSC))
246: return;
247:
248: ptr = tty_term_string(tty->term, TTYC_ACSC);
249: if (strlen(ptr) % 2 != 0)
250: return;
251: for (; *ptr != '\0'; ptr += 2)
252: tty->acs[(u_char) ptr[0]] = ptr[1];
253: }
254:
255: u_char
256: tty_get_acs(struct tty *tty, u_char ch)
257: {
258: if (tty->acs[ch] != '\0')
259: return (tty->acs[ch]);
260: return (ch);
261: }
262:
263: void
1.20 nicm 264: tty_close(struct tty *tty)
1.1 nicm 265: {
266: if (tty->log_fd != -1) {
267: close(tty->log_fd);
268: tty->log_fd = -1;
269: }
270:
1.67 nicm 271: evtimer_del(&tty->key_timer);
1.20 nicm 272: tty_stop_tty(tty);
1.1 nicm 273:
1.21 nicm 274: if (tty->flags & TTY_OPENED) {
1.66 nicm 275: bufferevent_free(tty->event);
276:
1.21 nicm 277: tty_term_free(tty->term);
278: tty_keys_free(tty);
279:
280: tty->flags &= ~TTY_OPENED;
281: }
1.1 nicm 282:
1.21 nicm 283: if (tty->fd != -1) {
284: close(tty->fd);
285: tty->fd = -1;
286: }
1.1 nicm 287: }
288:
289: void
1.20 nicm 290: tty_free(struct tty *tty)
1.1 nicm 291: {
1.20 nicm 292: tty_close(tty);
1.1 nicm 293:
294: if (tty->path != NULL)
295: xfree(tty->path);
296: if (tty->termname != NULL)
297: xfree(tty->termname);
298: }
299:
300: void
301: tty_raw(struct tty *tty, const char *s)
302: {
303: write(tty->fd, s, strlen(s));
304: }
305:
306: void
307: tty_putcode(struct tty *tty, enum tty_code_code code)
308: {
309: tty_puts(tty, tty_term_string(tty->term, code));
310: }
311:
312: void
313: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
314: {
315: if (a < 0)
316: return;
317: tty_puts(tty, tty_term_string1(tty->term, code, a));
318: }
319:
320: void
321: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
322: {
323: if (a < 0 || b < 0)
324: return;
325: tty_puts(tty, tty_term_string2(tty->term, code, a, b));
326: }
327:
328: void
329: tty_puts(struct tty *tty, const char *s)
330: {
331: if (*s == '\0')
332: return;
1.66 nicm 333: bufferevent_write(tty->event, s, strlen(s));
1.1 nicm 334:
335: if (tty->log_fd != -1)
336: write(tty->log_fd, s, strlen(s));
337: }
338:
339: void
340: tty_putc(struct tty *tty, u_char ch)
341: {
342: u_int sx;
343:
344: if (tty->cell.attr & GRID_ATTR_CHARSET)
345: ch = tty_get_acs(tty, ch);
1.66 nicm 346: bufferevent_write(tty->event, &ch, 1);
1.1 nicm 347:
348: if (ch >= 0x20 && ch != 0x7f) {
349: sx = tty->sx;
350: if (tty->term->flags & TERM_EARLYWRAP)
351: sx--;
352:
1.46 nicm 353: if (tty->cx >= sx) {
354: tty->cx = 1;
355: if (tty->cy != tty->rlower)
356: tty->cy++;
1.1 nicm 357: } else
358: tty->cx++;
359: }
360:
361: if (tty->log_fd != -1)
362: write(tty->log_fd, &ch, 1);
363: }
364:
365: void
1.5 nicm 366: tty_pututf8(struct tty *tty, const struct grid_utf8 *gu)
367: {
1.71 nicm 368: size_t size;
1.5 nicm 369:
1.71 nicm 370: size = grid_utf8_size(gu);
371: bufferevent_write(tty->event, gu->data, size);
372: if (tty->log_fd != -1)
373: write(tty->log_fd, gu->data, size);
1.54 nicm 374: tty->cx += gu->width;
1.5 nicm 375: }
376:
377: void
1.1 nicm 378: tty_set_title(struct tty *tty, const char *title)
379: {
380: if (strstr(tty->termname, "xterm") == NULL &&
381: strstr(tty->termname, "rxvt") == NULL &&
382: strcmp(tty->termname, "screen") != 0)
383: return;
384:
385: tty_puts(tty, "\033]0;");
386: tty_puts(tty, title);
387: tty_putc(tty, '\007');
388: }
389:
390: void
391: tty_update_mode(struct tty *tty, int mode)
392: {
393: int changed;
394:
395: if (tty->flags & TTY_NOCURSOR)
396: mode &= ~MODE_CURSOR;
397:
398: changed = mode ^ tty->mode;
399: if (changed & MODE_CURSOR) {
400: if (mode & MODE_CURSOR)
401: tty_putcode(tty, TTYC_CNORM);
402: else
403: tty_putcode(tty, TTYC_CIVIS);
404: }
1.86 ! nicm 405: if (changed & (MODE_MOUSE|MODE_MOUSEMOTION)) {
! 406: if (mode & MODE_MOUSE) {
! 407: if (mode & MODE_MOUSEMOTION)
! 408: tty_puts(tty, "\033[?1003h");
! 409: else
! 410: tty_puts(tty, "\033[?1000h");
! 411: } else {
! 412: if (mode & MODE_MOUSEMOTION)
! 413: tty_puts(tty, "\033[?1003l");
! 414: else
! 415: tty_puts(tty, "\033[?1000l");
! 416: }
1.76 nicm 417: }
418: if (changed & MODE_KKEYPAD) {
419: if (mode & MODE_KKEYPAD)
420: tty_putcode(tty, TTYC_SMKX);
421: else
422: tty_putcode(tty, TTYC_RMKX);
1.1 nicm 423: }
424: tty->mode = mode;
425: }
426:
427: void
428: tty_emulate_repeat(
429: struct tty *tty, enum tty_code_code code, enum tty_code_code code1, u_int n)
430: {
431: if (tty_term_has(tty->term, code))
432: tty_putcode1(tty, code, n);
433: else {
434: while (n-- > 0)
435: tty_putcode(tty, code1);
436: }
437: }
438:
439: /*
440: * Redraw scroll region using data from screen (already updated). Used when
441: * CSR not supported, or window is a pane that doesn't take up the full
442: * width of the terminal.
443: */
444: void
1.24 nicm 445: tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 446: {
1.14 nicm 447: struct window_pane *wp = ctx->wp;
448: struct screen *s = wp->screen;
449: u_int i;
1.1 nicm 450:
451: /*
452: * If region is >= 50% of the screen, just schedule a window redraw. In
453: * most cases, this is likely to be followed by some more scrolling -
454: * without this, the entire pane ends up being redrawn many times which
455: * can be much more data.
456: */
1.14 nicm 457: if (ctx->orupper - ctx->orlower >= screen_size_y(s) / 2) {
1.1 nicm 458: wp->flags |= PANE_REDRAW;
459: return;
460: }
461:
1.14 nicm 462: if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
463: for (i = ctx->ocy; i < screen_size_y(s); i++)
1.1 nicm 464: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
465: } else {
1.14 nicm 466: for (i = ctx->orupper; i <= ctx->orlower; i++)
1.1 nicm 467: tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
468: }
469: }
470:
471: void
472: tty_draw_line(struct tty *tty, struct screen *s, u_int py, u_int ox, u_int oy)
473: {
474: const struct grid_cell *gc;
1.46 nicm 475: struct grid_line *gl;
1.16 nicm 476: struct grid_cell tmpgc;
1.1 nicm 477: const struct grid_utf8 *gu;
478: u_int i, sx;
479:
1.35 nicm 480: tty_update_mode(tty, tty->mode & ~MODE_CURSOR);
481:
1.1 nicm 482: sx = screen_size_x(s);
1.19 nicm 483: if (sx > s->grid->linedata[s->grid->hsize + py].cellsize)
484: sx = s->grid->linedata[s->grid->hsize + py].cellsize;
1.1 nicm 485: if (sx > tty->sx)
486: sx = tty->sx;
487:
1.46 nicm 488: /*
489: * Don't move the cursor to the start permission if it will wrap there
1.50 nicm 490: * itself.
1.46 nicm 491: */
492: gl = NULL;
493: if (py != 0)
494: gl = &s->grid->linedata[s->grid->hsize + py - 1];
1.83 nicm 495: if (oy + py == 0 || gl == NULL || !(gl->flags & GRID_LINE_WRAPPED) ||
1.47 nicm 496: tty->cx < tty->sx || ox != 0 ||
497: (oy + py != tty->cy + 1 && tty->cy != s->rlower + oy))
1.46 nicm 498: tty_cursor(tty, ox, oy + py);
499:
1.1 nicm 500: for (i = 0; i < sx; i++) {
501: gc = grid_view_peek_cell(s->grid, i, py);
502:
503: gu = NULL;
504: if (gc->flags & GRID_FLAG_UTF8)
505: gu = grid_view_peek_utf8(s->grid, i, py);
506:
507: if (screen_check_selection(s, i, py)) {
1.16 nicm 508: memcpy(&tmpgc, &s->sel.cell, sizeof tmpgc);
509: tmpgc.data = gc->data;
1.77 nicm 510: tmpgc.flags = gc->flags &
1.38 nicm 511: ~(GRID_FLAG_FG256|GRID_FLAG_BG256);
512: tmpgc.flags |= s->sel.cell.flags &
513: (GRID_FLAG_FG256|GRID_FLAG_BG256);
1.16 nicm 514: tty_cell(tty, &tmpgc, gu);
1.1 nicm 515: } else
516: tty_cell(tty, gc, gu);
517: }
518:
1.35 nicm 519: if (sx >= tty->sx) {
520: tty_update_mode(tty, tty->mode);
1.1 nicm 521: return;
1.35 nicm 522: }
1.1 nicm 523: tty_reset(tty);
524:
1.41 nicm 525: tty_cursor(tty, ox + sx, oy + py);
1.1 nicm 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: }
1.35 nicm 532: tty_update_mode(tty, tty->mode);
1.15 nicm 533: }
534:
535: void
1.24 nicm 536: tty_write(void (*cmdfn)(
537: struct tty *, const struct tty_ctx *), const struct tty_ctx *ctx)
1.15 nicm 538: {
539: struct window_pane *wp = ctx->wp;
540: struct client *c;
541: u_int i;
542:
1.75 nicm 543: /* wp can be NULL if updating the screen but not the terminal. */
1.15 nicm 544: if (wp == NULL)
545: return;
546:
547: if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
548: return;
549: if (wp->window->flags & WINDOW_HIDDEN || !window_pane_visible(wp))
550: return;
551:
552: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
553: c = ARRAY_ITEM(&clients, i);
554: if (c == NULL || c->session == NULL)
555: continue;
556: if (c->flags & CLIENT_SUSPENDED)
557: continue;
558:
559: if (c->session->curw->window == wp->window) {
560: if (c->tty.flags & TTY_FREEZE || c->tty.term == NULL)
561: continue;
562: cmdfn(&c->tty, ctx);
563: }
1.1 nicm 564: }
565: }
566:
567: void
1.24 nicm 568: tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 569: {
1.77 nicm 570: struct window_pane *wp = ctx->wp;
1.12 nicm 571: struct screen *s = wp->screen;
1.24 nicm 572: u_int i;
1.1 nicm 573:
574: if (wp->xoff != 0 || screen_size_x(s) < tty->sx) {
1.14 nicm 575: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 576: return;
577: }
578:
579: tty_reset(tty);
580:
1.77 nicm 581: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41 nicm 582:
1.1 nicm 583: if (tty_term_has(tty->term, TTYC_ICH) ||
584: tty_term_has(tty->term, TTYC_ICH1))
1.12 nicm 585: tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
1.77 nicm 586: else if (tty_term_has(tty->term, TTYC_SMIR) &&
1.72 nicm 587: tty_term_has(tty->term, TTYC_RMIR)) {
1.1 nicm 588: tty_putcode(tty, TTYC_SMIR);
1.24 nicm 589: for (i = 0; i < ctx->num; i++)
1.1 nicm 590: tty_putc(tty, ' ');
591: tty_putcode(tty, TTYC_RMIR);
1.72 nicm 592: } else
593: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 594: }
595:
596: void
1.24 nicm 597: tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 598: {
1.77 nicm 599: struct window_pane *wp = ctx->wp;
1.12 nicm 600: struct screen *s = wp->screen;
1.1 nicm 601:
1.26 nicm 602: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
603: (!tty_term_has(tty->term, TTYC_DCH) &&
604: !tty_term_has(tty->term, TTYC_DCH1))) {
1.14 nicm 605: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 606: return;
607: }
608:
609: tty_reset(tty);
610:
1.77 nicm 611: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41 nicm 612:
1.26 nicm 613: if (tty_term_has(tty->term, TTYC_DCH) ||
614: tty_term_has(tty->term, TTYC_DCH1))
615: tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
1.1 nicm 616: }
617:
618: void
1.24 nicm 619: tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 620: {
1.77 nicm 621: struct window_pane *wp = ctx->wp;
1.12 nicm 622: struct screen *s = wp->screen;
1.1 nicm 623:
1.77 nicm 624: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
625: !tty_term_has(tty->term, TTYC_CSR) ||
1.72 nicm 626: !tty_term_has(tty->term, TTYC_IL1)) {
1.14 nicm 627: tty_redraw_region(tty, ctx);
1.1 nicm 628: return;
629: }
630:
631: tty_reset(tty);
632:
1.77 nicm 633: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
634: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1 nicm 635:
1.12 nicm 636: tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
1.1 nicm 637: }
638:
639: void
1.24 nicm 640: tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 641: {
1.77 nicm 642: struct window_pane *wp = ctx->wp;
1.12 nicm 643: struct screen *s = wp->screen;
1.1 nicm 644:
1.77 nicm 645: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
1.72 nicm 646: !tty_term_has(tty->term, TTYC_CSR) ||
647: !tty_term_has(tty->term, TTYC_DL1)) {
1.14 nicm 648: tty_redraw_region(tty, ctx);
1.1 nicm 649: return;
650: }
651:
652: tty_reset(tty);
653:
1.77 nicm 654: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
655: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1 nicm 656:
1.12 nicm 657: tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
1.1 nicm 658: }
659:
660: void
1.24 nicm 661: tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 662: {
1.77 nicm 663: struct window_pane *wp = ctx->wp;
1.12 nicm 664: struct screen *s = wp->screen;
665: u_int i;
1.1 nicm 666:
667: tty_reset(tty);
668:
1.77 nicm 669: tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.41 nicm 670:
1.1 nicm 671: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
672: tty_term_has(tty->term, TTYC_EL)) {
673: tty_putcode(tty, TTYC_EL);
674: } else {
675: for (i = 0; i < screen_size_x(s); i++)
676: tty_putc(tty, ' ');
677: }
678: }
679:
680: void
1.24 nicm 681: tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 682: {
1.77 nicm 683: struct window_pane *wp = ctx->wp;
1.12 nicm 684: struct screen *s = wp->screen;
685: u_int i;
1.1 nicm 686:
687: tty_reset(tty);
688:
1.41 nicm 689: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
690:
1.1 nicm 691: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
692: tty_term_has(tty->term, TTYC_EL))
693: tty_putcode(tty, TTYC_EL);
694: else {
1.14 nicm 695: for (i = ctx->ocx; i < screen_size_x(s); i++)
1.1 nicm 696: tty_putc(tty, ' ');
697: }
698: }
699:
700: void
1.24 nicm 701: tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 702: {
1.77 nicm 703: struct window_pane *wp = ctx->wp;
1.12 nicm 704: u_int i;
1.1 nicm 705:
706: tty_reset(tty);
707:
708: if (wp->xoff == 0 && tty_term_has(tty->term, TTYC_EL1)) {
1.41 nicm 709: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1 nicm 710: tty_putcode(tty, TTYC_EL1);
711: } else {
1.41 nicm 712: tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.14 nicm 713: for (i = 0; i < ctx->ocx + 1; i++)
1.1 nicm 714: tty_putc(tty, ' ');
715: }
716: }
717:
718: void
1.24 nicm 719: tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 720: {
1.77 nicm 721: struct window_pane *wp = ctx->wp;
1.12 nicm 722: struct screen *s = wp->screen;
1.1 nicm 723:
1.56 nicm 724: if (ctx->ocy != ctx->orupper)
725: return;
726:
1.77 nicm 727: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
1.70 nicm 728: !tty_term_has(tty->term, TTYC_CSR) ||
729: !tty_term_has(tty->term, TTYC_RI)) {
1.14 nicm 730: tty_redraw_region(tty, ctx);
1.1 nicm 731: return;
732: }
733:
1.56 nicm 734: tty_reset(tty);
1.77 nicm 735:
1.56 nicm 736: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
737: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
1.77 nicm 738:
1.56 nicm 739: tty_putcode(tty, TTYC_RI);
1.1 nicm 740: }
741:
742: void
1.24 nicm 743: tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 744: {
1.77 nicm 745: struct window_pane *wp = ctx->wp;
1.12 nicm 746: struct screen *s = wp->screen;
1.1 nicm 747:
1.56 nicm 748: if (ctx->ocy != ctx->orlower)
749: return;
750:
1.77 nicm 751: if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
1.1 nicm 752: !tty_term_has(tty->term, TTYC_CSR)) {
1.14 nicm 753: tty_redraw_region(tty, ctx);
1.1 nicm 754: return;
755: }
1.52 nicm 756:
757: /*
758: * If this line wrapped naturally (ctx->num is nonzero), don't do
759: * anything - the cursor can just be moved to the last cell and wrap
760: * naturally.
761: */
762: if (ctx->num && !(tty->term->flags & TERM_EARLYWRAP))
763: return;
1.1 nicm 764:
1.56 nicm 765: tty_reset(tty);
1.77 nicm 766:
1.56 nicm 767: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
768: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.77 nicm 769:
1.56 nicm 770: tty_putc(tty, '\n');
1.1 nicm 771: }
772:
773: void
1.24 nicm 774: tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 775: {
1.77 nicm 776: struct window_pane *wp = ctx->wp;
1.12 nicm 777: struct screen *s = wp->screen;
778: u_int i, j;
1.1 nicm 779:
780: tty_reset(tty);
781:
1.39 nicm 782: tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41 nicm 783: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.39 nicm 784:
1.1 nicm 785: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
786: tty_term_has(tty->term, TTYC_EL)) {
787: tty_putcode(tty, TTYC_EL);
1.14 nicm 788: if (ctx->ocy != screen_size_y(s) - 1) {
1.41 nicm 789: tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
1.14 nicm 790: for (i = ctx->ocy + 1; i < screen_size_y(s); i++) {
1.1 nicm 791: tty_putcode(tty, TTYC_EL);
792: if (i == screen_size_y(s) - 1)
793: continue;
794: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
795: tty->cy++;
796: }
797: }
798: } else {
1.14 nicm 799: for (i = ctx->ocx; i < screen_size_x(s); i++)
1.1 nicm 800: tty_putc(tty, ' ');
1.68 nicm 801: for (j = ctx->ocy + 1; j < screen_size_y(s); j++) {
1.41 nicm 802: tty_cursor_pane(tty, ctx, 0, j);
1.1 nicm 803: for (i = 0; i < screen_size_x(s); i++)
804: tty_putc(tty, ' ');
805: }
806: }
807: }
808:
809: void
1.24 nicm 810: tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 811: {
1.77 nicm 812: struct window_pane *wp = ctx->wp;
1.12 nicm 813: struct screen *s = wp->screen;
814: u_int i, j;
1.1 nicm 815:
816: tty_reset(tty);
817:
1.39 nicm 818: tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41 nicm 819: tty_cursor_pane(tty, ctx, 0, 0);
1.39 nicm 820:
1.1 nicm 821: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
822: tty_term_has(tty->term, TTYC_EL)) {
1.14 nicm 823: for (i = 0; i < ctx->ocy; i++) {
1.1 nicm 824: tty_putcode(tty, TTYC_EL);
825: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
826: tty->cy++;
827: }
828: } else {
1.14 nicm 829: for (j = 0; j < ctx->ocy; j++) {
1.41 nicm 830: tty_cursor_pane(tty, ctx, 0, j);
1.1 nicm 831: for (i = 0; i < screen_size_x(s); i++)
832: tty_putc(tty, ' ');
833: }
834: }
1.14 nicm 835: for (i = 0; i <= ctx->ocx; i++)
1.1 nicm 836: tty_putc(tty, ' ');
837: }
838:
839: void
1.24 nicm 840: tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 841: {
1.77 nicm 842: struct window_pane *wp = ctx->wp;
1.12 nicm 843: struct screen *s = wp->screen;
844: u_int i, j;
1.1 nicm 845:
846: tty_reset(tty);
847:
1.39 nicm 848: tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41 nicm 849: tty_cursor_pane(tty, ctx, 0, 0);
1.39 nicm 850:
1.1 nicm 851: if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
852: tty_term_has(tty->term, TTYC_EL)) {
853: for (i = 0; i < screen_size_y(s); i++) {
854: tty_putcode(tty, TTYC_EL);
855: if (i != screen_size_y(s) - 1) {
856: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
857: tty->cy++;
858: }
859: }
860: } else {
861: for (j = 0; j < screen_size_y(s); j++) {
1.41 nicm 862: tty_cursor_pane(tty, ctx, 0, j);
1.1 nicm 863: for (i = 0; i < screen_size_x(s); i++)
864: tty_putc(tty, ' ');
865: }
1.4 nicm 866: }
867: }
868:
869: void
1.24 nicm 870: tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
1.4 nicm 871: {
1.12 nicm 872: struct window_pane *wp = ctx->wp;
873: struct screen *s = wp->screen;
874: u_int i, j;
1.4 nicm 875:
876: tty_reset(tty);
877:
1.39 nicm 878: tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.4 nicm 879:
880: for (j = 0; j < screen_size_y(s); j++) {
1.41 nicm 881: tty_cursor_pane(tty, ctx, 0, j);
1.4 nicm 882: for (i = 0; i < screen_size_x(s); i++)
883: tty_putc(tty, 'E');
1.1 nicm 884: }
885: }
886:
887: void
1.24 nicm 888: tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 889: {
1.46 nicm 890: struct window_pane *wp = ctx->wp;
891: struct screen *s = wp->screen;
1.58 nicm 892: u_int cx;
1.46 nicm 893:
894: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
895:
1.57 nicm 896: /* Is the cursor in the very last position? */
897: if (ctx->ocx > wp->sx - ctx->last_width) {
898: if (wp->xoff != 0 || wp->sx != tty->sx) {
899: /*
900: * The pane doesn't fill the entire line, the linefeed
901: * will already have happened, so just move the cursor.
902: */
903: tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
904: } else if (tty->cx < tty->sx) {
905: /*
906: * The cursor isn't in the last position already, so
907: * move as far left as possinble and redraw the last
908: * cell to move into the last position.
909: */
1.50 nicm 910: cx = screen_size_x(s) - ctx->last_width;
911: tty_cursor_pane(tty, ctx, cx, ctx->ocy);
912: tty_cell(tty, &ctx->last_cell, &ctx->last_utf8);
913: }
914: } else
1.46 nicm 915: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1 nicm 916:
1.12 nicm 917: tty_cell(tty, ctx->cell, ctx->utf8);
1.1 nicm 918: }
919:
920: void
1.24 nicm 921: tty_cmd_utf8character(struct tty *tty, const struct tty_ctx *ctx)
1.1 nicm 922: {
1.53 nicm 923: struct window_pane *wp = ctx->wp;
1.1 nicm 924:
1.53 nicm 925: /*
926: * Cannot rely on not being a partial character, so just redraw the
927: * whole line.
928: */
1.77 nicm 929: tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
1.1 nicm 930: }
931:
932: void
933: tty_cell(
934: struct tty *tty, const struct grid_cell *gc, const struct grid_utf8 *gu)
935: {
936: u_int i;
937:
938: /* Skip last character if terminal is stupid. */
939: if (tty->term->flags & TERM_EARLYWRAP &&
940: tty->cy == tty->sy - 1 && tty->cx == tty->sx - 1)
941: return;
942:
943: /* If this is a padding character, do nothing. */
944: if (gc->flags & GRID_FLAG_PADDING)
945: return;
946:
947: /* Set the attributes. */
948: tty_attributes(tty, gc);
949:
950: /* If not UTF-8, write directly. */
951: if (!(gc->flags & GRID_FLAG_UTF8)) {
952: if (gc->data < 0x20 || gc->data == 0x7f)
953: return;
954: tty_putc(tty, gc->data);
955: return;
956: }
957:
958: /* If the terminal doesn't support UTF-8, write underscores. */
959: if (!(tty->flags & TTY_UTF8)) {
960: for (i = 0; i < gu->width; i++)
961: tty_putc(tty, '_');
962: return;
963: }
964:
965: /* Otherwise, write UTF-8. */
1.5 nicm 966: tty_pututf8(tty, gu);
1.1 nicm 967: }
968:
969: void
970: tty_reset(struct tty *tty)
971: {
972: struct grid_cell *gc = &tty->cell;
973:
974: if (memcmp(gc, &grid_default_cell, sizeof *gc) == 0)
975: return;
976:
977: if (tty_term_has(tty->term, TTYC_RMACS) && gc->attr & GRID_ATTR_CHARSET)
978: tty_putcode(tty, TTYC_RMACS);
979: tty_putcode(tty, TTYC_SGR0);
980: memcpy(gc, &grid_default_cell, sizeof *gc);
981: }
982:
1.40 nicm 983: /* Set region inside pane. */
1.1 nicm 984: void
1.39 nicm 985: tty_region_pane(
986: struct tty *tty, const struct tty_ctx *ctx, u_int rupper, u_int rlower)
1.1 nicm 987: {
1.77 nicm 988: struct window_pane *wp = ctx->wp;
1.39 nicm 989:
1.40 nicm 990: tty_region(tty, wp->yoff + rupper, wp->yoff + rlower);
1.39 nicm 991: }
992:
1.40 nicm 993: /* Set region at absolute position. */
1.39 nicm 994: void
1.40 nicm 995: tty_region(struct tty *tty, u_int rupper, u_int rlower)
1.39 nicm 996: {
997: if (tty->rlower == rlower && tty->rupper == rupper)
998: return;
1.1 nicm 999: if (!tty_term_has(tty->term, TTYC_CSR))
1000: return;
1.39 nicm 1001:
1002: tty->rupper = rupper;
1003: tty->rlower = rlower;
1.55 nicm 1004:
1005: /*
1006: * Some terminals (such as PuTTY) do not correctly reset the cursor to
1007: * 0,0 if it is beyond the last column (they do not reset their wrap
1008: * flag so further output causes a line feed). As a workaround, do an
1009: * explicit move to 0 first.
1010: */
1011: if (tty->cx >= tty->sx)
1012: tty_cursor(tty, 0, tty->cy);
1.42 nicm 1013:
1.39 nicm 1014: tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1.78 nicm 1015: tty_cursor(tty, 0, 0);
1.1 nicm 1016: }
1017:
1.42 nicm 1018: /* Move cursor inside pane. */
1.1 nicm 1019: void
1.41 nicm 1020: tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
1021: {
1.77 nicm 1022: struct window_pane *wp = ctx->wp;
1.41 nicm 1023:
1024: tty_cursor(tty, wp->xoff + cx, wp->yoff + cy);
1025: }
1026:
1.42 nicm 1027: /* Move cursor to absolute position. */
1.41 nicm 1028: void
1029: tty_cursor(struct tty *tty, u_int cx, u_int cy)
1.1 nicm 1030: {
1.42 nicm 1031: struct tty_term *term = tty->term;
1032: u_int thisx, thisy;
1033: int change;
1.77 nicm 1034:
1.42 nicm 1035: if (cx > tty->sx - 1)
1036: cx = tty->sx - 1;
1037:
1038: thisx = tty->cx;
1039: thisy = tty->cy;
1040:
1041: /* No change. */
1042: if (cx == thisx && cy == thisy)
1043: return;
1044:
1.43 nicm 1045: /* Very end of the line, just use absolute movement. */
1046: if (thisx > tty->sx - 1)
1047: goto absolute;
1048:
1.42 nicm 1049: /* Move to home position (0, 0). */
1050: if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
1051: tty_putcode(tty, TTYC_HOME);
1052: goto out;
1053: }
1054:
1055: /* Zero on the next line. */
1.48 nicm 1056: if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower) {
1.1 nicm 1057: tty_putc(tty, '\r');
1.42 nicm 1058: tty_putc(tty, '\n');
1059: goto out;
1060: }
1061:
1.45 nicm 1062: /* Moving column or row. */
1.42 nicm 1063: if (cy == thisy) {
1.45 nicm 1064: /*
1065: * Moving column only, row staying the same.
1066: */
1067:
1.42 nicm 1068: /* To left edge. */
1069: if (cx == 0) {
1070: tty_putc(tty, '\r');
1071: goto out;
1072: }
1073:
1074: /* One to the left. */
1075: if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) {
1076: tty_putcode(tty, TTYC_CUB1);
1077: goto out;
1078: }
1079:
1080: /* One to the right. */
1081: if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) {
1082: tty_putcode(tty, TTYC_CUF1);
1083: goto out;
1084: }
1085:
1086: /* Calculate difference. */
1087: change = thisx - cx; /* +ve left, -ve right */
1088:
1089: /*
1090: * Use HPA if change is larger than absolute, otherwise move
1091: * the cursor with CUB/CUF.
1092: */
1093: if (abs(change) > cx && tty_term_has(term, TTYC_HPA)) {
1094: tty_putcode1(tty, TTYC_HPA, cx);
1095: goto out;
1096: } else if (change > 0 && tty_term_has(term, TTYC_CUB)) {
1097: tty_putcode1(tty, TTYC_CUB, change);
1098: goto out;
1099: } else if (change < 0 && tty_term_has(term, TTYC_CUF)) {
1100: tty_putcode1(tty, TTYC_CUF, -change);
1101: goto out;
1102: }
1.45 nicm 1103: } else if (cx == thisx) {
1104: /*
1105: * Moving row only, column staying the same.
1106: */
1.42 nicm 1107:
1108: /* One above. */
1.77 nicm 1109: if (thisy != tty->rupper &&
1.42 nicm 1110: cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) {
1111: tty_putcode(tty, TTYC_CUU1);
1112: goto out;
1113: }
1114:
1115: /* One below. */
1.49 nicm 1116: if (thisy != tty->rlower &&
1.42 nicm 1117: cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) {
1118: tty_putcode(tty, TTYC_CUD1);
1119: goto out;
1120: }
1121:
1122: /* Calculate difference. */
1123: change = thisy - cy; /* +ve up, -ve down */
1124:
1125: /*
1.77 nicm 1126: * Try to use VPA if change is larger than absolute or if this
1127: * change would cross the scroll region, otherwise use CUU/CUD.
1.42 nicm 1128: */
1.44 nicm 1129: if (abs(change) > cy ||
1.42 nicm 1130: (change < 0 && cy - change > tty->rlower) ||
1.44 nicm 1131: (change > 0 && cy - change < tty->rupper)) {
1132: if (tty_term_has(term, TTYC_VPA)) {
1133: tty_putcode1(tty, TTYC_VPA, cy);
1134: goto out;
1135: }
1.42 nicm 1136: } else if (change > 0 && tty_term_has(term, TTYC_CUU)) {
1137: tty_putcode1(tty, TTYC_CUU, change);
1138: goto out;
1139: } else if (change < 0 && tty_term_has(term, TTYC_CUD)) {
1140: tty_putcode1(tty, TTYC_CUD, -change);
1141: goto out;
1142: }
1143: }
1144:
1.43 nicm 1145: absolute:
1.42 nicm 1146: /* Absolute movement. */
1147: tty_putcode2(tty, TTYC_CUP, cy, cx);
1148:
1149: out:
1150: tty->cx = cx;
1151: tty->cy = cy;
1.1 nicm 1152: }
1153:
1154: void
1155: tty_attributes(struct tty *tty, const struct grid_cell *gc)
1156: {
1.63 nicm 1157: struct grid_cell *tc = &tty->cell, gc2;
1.85 nicm 1158: u_char changed;
1.61 nicm 1159:
1.85 nicm 1160: memcpy(&gc2, gc, sizeof gc2);
1.63 nicm 1161:
1.18 nicm 1162: /*
1163: * If no setab, try to use the reverse attribute as a best-effort for a
1164: * non-default background. This is a bit of a hack but it doesn't do
1165: * any serious harm and makes a couple of applications happier.
1166: */
1167: if (!tty_term_has(tty->term, TTYC_SETAB)) {
1.85 nicm 1168: if (gc2.attr & GRID_ATTR_REVERSE) {
1169: if (gc2.fg != 7 && gc2.fg != 8)
1.64 nicm 1170: gc2.attr &= ~GRID_ATTR_REVERSE;
1.18 nicm 1171: } else {
1.85 nicm 1172: if (gc2.bg != 0 && gc2.bg != 8)
1.64 nicm 1173: gc2.attr |= GRID_ATTR_REVERSE;
1.18 nicm 1174: }
1175: }
1.1 nicm 1176:
1.85 nicm 1177: /* Fix up the colours if necessary. */
1178: tty_check_fg(tty, &gc2);
1179: tty_check_bg(tty, &gc2);
1180:
1.64 nicm 1181: /* If any bits are being cleared, reset everything. */
1.85 nicm 1182: if (tc->attr & ~gc2.attr)
1.64 nicm 1183: tty_reset(tty);
1184:
1185: /*
1186: * Set the colours. This may call tty_reset() (so it comes next) and
1187: * may add to (NOT remove) the desired attributes by changing new_attr.
1188: */
1.85 nicm 1189: tty_colours(tty, &gc2);
1.64 nicm 1190:
1.1 nicm 1191: /* Filter out attribute bits already set. */
1.85 nicm 1192: changed = gc2.attr & ~tc->attr;
1193: tc->attr = gc2.attr;
1.1 nicm 1194:
1195: /* Set the attributes. */
1196: if (changed & GRID_ATTR_BRIGHT)
1197: tty_putcode(tty, TTYC_BOLD);
1198: if (changed & GRID_ATTR_DIM)
1199: tty_putcode(tty, TTYC_DIM);
1200: if (changed & GRID_ATTR_ITALICS)
1201: tty_putcode(tty, TTYC_SMSO);
1202: if (changed & GRID_ATTR_UNDERSCORE)
1203: tty_putcode(tty, TTYC_SMUL);
1204: if (changed & GRID_ATTR_BLINK)
1205: tty_putcode(tty, TTYC_BLINK);
1206: if (changed & GRID_ATTR_REVERSE) {
1207: if (tty_term_has(tty->term, TTYC_REV))
1208: tty_putcode(tty, TTYC_REV);
1209: else if (tty_term_has(tty->term, TTYC_SMSO))
1210: tty_putcode(tty, TTYC_SMSO);
1211: }
1212: if (changed & GRID_ATTR_HIDDEN)
1213: tty_putcode(tty, TTYC_INVIS);
1214: if (changed & GRID_ATTR_CHARSET)
1215: tty_putcode(tty, TTYC_SMACS);
1216: }
1217:
1.61 nicm 1218: void
1.85 nicm 1219: tty_colours(struct tty *tty, const struct grid_cell *gc)
1.1 nicm 1220: {
1.61 nicm 1221: struct grid_cell *tc = &tty->cell;
1.62 nicm 1222: u_char fg = gc->fg, bg = gc->bg, flags = gc->flags;
1223: int have_ax, fg_default, bg_default;
1.61 nicm 1224:
1225: /* No changes? Nothing is necessary. */
1.62 nicm 1226: if (fg == tc->fg && bg == tc->bg &&
1227: ((flags ^ tc->flags) & (GRID_FLAG_FG256|GRID_FLAG_BG256)) == 0)
1.63 nicm 1228: return;
1.1 nicm 1229:
1.61 nicm 1230: /*
1231: * Is either the default colour? This is handled specially because the
1232: * best solution might be to reset both colours to default, in which
1233: * case if only one is default need to fall onward to set the other
1234: * colour.
1235: */
1.62 nicm 1236: fg_default = (fg == 8 && !(flags & GRID_FLAG_FG256));
1237: bg_default = (bg == 8 && !(flags & GRID_FLAG_BG256));
1.61 nicm 1238: if (fg_default || bg_default) {
1239: /*
1240: * If don't have AX but do have op, send sgr0 (op can't
1241: * actually be used because it is sometimes the same as sgr0
1242: * and sometimes isn't). This resets both colours to default.
1243: *
1244: * Otherwise, try to set the default colour only as needed.
1245: */
1246: have_ax = tty_term_has(tty->term, TTYC_AX);
1247: if (!have_ax && tty_term_has(tty->term, TTYC_OP))
1248: tty_reset(tty);
1249: else {
1250: if (fg_default &&
1.81 nicm 1251: (tc->fg != 8 || tc->flags & GRID_FLAG_FG256)) {
1.61 nicm 1252: if (have_ax)
1253: tty_puts(tty, "\033[39m");
1.81 nicm 1254: else if (tc->fg != 7 ||
1255: tc->flags & GRID_FLAG_FG256)
1.61 nicm 1256: tty_putcode1(tty, TTYC_SETAF, 7);
1257: tc->fg = 8;
1258: tc->flags &= ~GRID_FLAG_FG256;
1259: }
1260: if (bg_default &&
1.81 nicm 1261: (tc->bg != 8 || tc->flags & GRID_FLAG_BG256)) {
1.77 nicm 1262: if (have_ax)
1.61 nicm 1263: tty_puts(tty, "\033[49m");
1.81 nicm 1264: else if (tc->bg != 0 ||
1265: tc->flags & GRID_FLAG_BG256)
1.61 nicm 1266: tty_putcode1(tty, TTYC_SETAB, 0);
1267: tc->bg = 8;
1268: tc->flags &= ~GRID_FLAG_BG256;
1269: }
1270: }
1271: }
1.1 nicm 1272:
1.61 nicm 1273: /* Set the foreground colour. */
1274: if (!fg_default && (fg != tc->fg ||
1.62 nicm 1275: ((flags & GRID_FLAG_FG256) != (tc->flags & GRID_FLAG_FG256))))
1.85 nicm 1276: tty_colours_fg(tty, gc);
1.1 nicm 1277:
1.61 nicm 1278: /*
1279: * Set the background colour. This must come after the foreground as
1280: * tty_colour_fg() can call tty_reset().
1281: */
1282: if (!bg_default && (bg != tc->bg ||
1.62 nicm 1283: ((flags & GRID_FLAG_BG256) != (tc->flags & GRID_FLAG_BG256))))
1.73 nicm 1284: tty_colours_bg(tty, gc);
1.1 nicm 1285: }
1286:
1287: void
1.85 nicm 1288: tty_check_fg(struct tty *tty, struct grid_cell *gc)
1289: {
1290: u_int colours;
1291:
1292: /* Is this a 256-colour colour? */
1293: if (gc->flags & GRID_FLAG_FG256) {
1294: /* And not a 256 colour mode? */
1295: if (!(tty->term->flags & TERM_88COLOURS) &&
1296: !(tty->term_flags & TERM_88COLOURS) &&
1297: !(tty->term->flags & TERM_256COLOURS) &&
1298: !(tty->term_flags & TERM_256COLOURS)) {
1299: gc->fg = colour_256to16(gc->fg);
1300: if (gc->fg & 8) {
1301: gc->fg &= 7;
1302: gc->attr |= GRID_ATTR_BRIGHT;
1303: } else
1304: gc->attr &= ~GRID_ATTR_BRIGHT;
1305: gc->flags &= ~GRID_FLAG_FG256;
1306: }
1307: return;
1308: }
1309:
1310: /* Is this an aixterm colour? */
1311: colours = tty_term_number(tty->term, TTYC_COLORS);
1312: if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) {
1313: gc->fg -= 90;
1314: gc->attr |= GRID_ATTR_BRIGHT;
1315: }
1316: }
1317:
1318: void
1319: tty_check_bg(struct tty *tty, struct grid_cell *gc)
1320: {
1321: u_int colours;
1322:
1323: /* Is this a 256-colour colour? */
1324: if (gc->flags & GRID_FLAG_BG256) {
1325: /*
1326: * And not a 256 colour mode? Translate to 16-colour
1327: * palette. Bold background doesn't exist portably, so just
1328: * discard the bold bit if set.
1329: */
1330: if (!(tty->term->flags & TERM_88COLOURS) &&
1331: !(tty->term_flags & TERM_88COLOURS) &&
1332: !(tty->term->flags & TERM_256COLOURS) &&
1333: !(tty->term_flags & TERM_256COLOURS)) {
1334: gc->bg = colour_256to16(gc->bg);
1335: if (gc->bg & 8)
1336: gc->bg &= 7;
1337: gc->attr &= ~GRID_ATTR_BRIGHT;
1338: gc->flags &= ~GRID_FLAG_BG256;
1339: }
1340: return;
1341: }
1342:
1343: /* Is this an aixterm colour? */
1344: colours = tty_term_number(tty->term, TTYC_COLORS);
1345: if (gc->bg >= 100 && gc->bg <= 107 && colours < 16) {
1346: gc->bg -= 90;
1347: gc->attr |= GRID_ATTR_BRIGHT;
1348: }
1349: }
1350:
1351: void
1352: tty_colours_fg(struct tty *tty, const struct grid_cell *gc)
1.1 nicm 1353: {
1.61 nicm 1354: struct grid_cell *tc = &tty->cell;
1355: u_char fg = gc->fg;
1.79 nicm 1356: char s[32];
1.1 nicm 1357:
1.61 nicm 1358: /* Is this a 256-colour colour? */
1.1 nicm 1359: if (gc->flags & GRID_FLAG_FG256) {
1.61 nicm 1360: /* Try as 256 colours or translating to 88. */
1.1 nicm 1361: if (tty_try_256(tty, fg, "38") == 0)
1.61 nicm 1362: goto save_fg;
1.1 nicm 1363: if (tty_try_88(tty, fg, "38") == 0)
1.61 nicm 1364: goto save_fg;
1.85 nicm 1365: /* Else already handled by tty_check_fg. */
1366: return;
1.1 nicm 1367: }
1368:
1.79 nicm 1369: /* Is this an aixterm bright colour? */
1370: if (fg >= 90 && fg <= 97) {
1.85 nicm 1371: xsnprintf(s, sizeof s, "\033[%dm", fg);
1372: tty_puts(tty, s);
1373: goto save_fg;
1.79 nicm 1374: }
1375:
1.61 nicm 1376: /* Otherwise set the foreground colour. */
1377: tty_putcode1(tty, TTYC_SETAF, fg);
1378:
1.77 nicm 1379: save_fg:
1.61 nicm 1380: /* Save the new values in the terminal current cell. */
1381: tc->fg = fg;
1382: tc->flags &= ~GRID_FLAG_FG256;
1383: tc->flags |= gc->flags & GRID_FLAG_FG256;
1.1 nicm 1384: }
1385:
1386: void
1.73 nicm 1387: tty_colours_bg(struct tty *tty, const struct grid_cell *gc)
1.1 nicm 1388: {
1.61 nicm 1389: struct grid_cell *tc = &tty->cell;
1390: u_char bg = gc->bg;
1.79 nicm 1391: char s[32];
1.1 nicm 1392:
1.61 nicm 1393: /* Is this a 256-colour colour? */
1.1 nicm 1394: if (gc->flags & GRID_FLAG_BG256) {
1.61 nicm 1395: /* Try as 256 colours or translating to 88. */
1.1 nicm 1396: if (tty_try_256(tty, bg, "48") == 0)
1.61 nicm 1397: goto save_bg;
1.1 nicm 1398: if (tty_try_88(tty, bg, "48") == 0)
1.61 nicm 1399: goto save_bg;
1.85 nicm 1400: /* Else already handled by tty_check_bg. */
1401: return;
1.79 nicm 1402: }
1403:
1404: /* Is this an aixterm bright colour? */
1405: if (bg >= 100 && bg <= 107) {
1406: /* 16 colour terminals or above only. */
1407: if (tty_term_number(tty->term, TTYC_COLORS) >= 16) {
1408: xsnprintf(s, sizeof s, "\033[%dm", bg);
1409: tty_puts(tty, s);
1410: goto save_bg;
1411: }
1412: bg -= 100;
1413: /* no such thing as a bold background */
1.1 nicm 1414: }
1415:
1.61 nicm 1416: /* Otherwise set the background colour. */
1417: tty_putcode1(tty, TTYC_SETAB, bg);
1418:
1419: save_bg:
1420: /* Save the new values in the terminal current cell. */
1421: tc->bg = bg;
1422: tc->flags &= ~GRID_FLAG_BG256;
1423: tc->flags |= gc->flags & GRID_FLAG_BG256;
1424: }
1425:
1426: int
1427: tty_try_256(struct tty *tty, u_char colour, const char *type)
1428: {
1429: char s[32];
1430:
1431: if (!(tty->term->flags & TERM_256COLOURS) &&
1432: !(tty->term_flags & TERM_256COLOURS))
1433: return (-1);
1434:
1435: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1436: tty_puts(tty, s);
1437: return (0);
1438: }
1439:
1440: int
1441: tty_try_88(struct tty *tty, u_char colour, const char *type)
1442: {
1443: char s[32];
1444:
1445: if (!(tty->term->flags & TERM_88COLOURS) &&
1446: !(tty->term_flags & TERM_88COLOURS))
1447: return (-1);
1448: colour = colour_256to88(colour);
1449:
1450: xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1451: tty_puts(tty, s);
1452: return (0);
1.1 nicm 1453: }
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