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Annotation of src/usr.bin/tmux/tty.c, Revision 1.263

1.263   ! nicm        1: /* $OpenBSD: tty.c,v 1.262 2017/04/18 15:27:47 nicm Exp $ */
1.1       nicm        2:
                      3: /*
1.198     nicm        4:  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1       nicm        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:
1.106     nicm       22: #include <netinet/in.h>
                     23:
1.212     nicm       24: #include <curses.h>
1.1       nicm       25: #include <errno.h>
                     26: #include <fcntl.h>
1.106     nicm       27: #include <resolv.h>
1.42      nicm       28: #include <stdlib.h>
1.1       nicm       29: #include <string.h>
                     30: #include <termios.h>
                     31: #include <unistd.h>
                     32:
                     33: #include "tmux.h"
                     34:
1.207     nicm       35: static int     tty_log_fd = -1;
1.192     nicm       36:
1.207     nicm       37: static int     tty_client_ready(struct client *, struct window_pane *);
1.201     nicm       38:
1.207     nicm       39: static void    tty_set_italics(struct tty *);
                     40: static int     tty_try_colour(struct tty *, int, const char *);
1.208     nicm       41: static void    tty_force_cursor_colour(struct tty *, const char *);
                     42: static void    tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int,
                     43:                    u_int);
1.253     nicm       44: static void    tty_cursor_pane_unless_wrap(struct tty *,
                     45:                    const struct tty_ctx *, u_int, u_int);
1.242     nicm       46: static void    tty_invalidate(struct tty *);
1.207     nicm       47: static void    tty_colours(struct tty *, const struct grid_cell *);
1.219     nicm       48: static void    tty_check_fg(struct tty *, const struct window_pane *,
                     49:                    struct grid_cell *);
                     50: static void    tty_check_bg(struct tty *, const struct window_pane *,
                     51:                    struct grid_cell *);
1.207     nicm       52: static void    tty_colours_fg(struct tty *, const struct grid_cell *);
                     53: static void    tty_colours_bg(struct tty *, const struct grid_cell *);
                     54:
1.208     nicm       55: static void    tty_region_pane(struct tty *, const struct tty_ctx *, u_int,
                     56:                    u_int);
1.214     nicm       57: static void    tty_region(struct tty *, u_int, u_int);
1.212     nicm       58: static void    tty_margin_pane(struct tty *, const struct tty_ctx *);
1.214     nicm       59: static void    tty_margin(struct tty *, u_int, u_int);
1.207     nicm       60: static int     tty_large_region(struct tty *, const struct tty_ctx *);
1.210     nicm       61: static int     tty_fake_bce(const struct tty *, const struct window_pane *,
                     62:                    u_int);
1.207     nicm       63: static void    tty_redraw_region(struct tty *, const struct tty_ctx *);
                     64: static void    tty_emulate_repeat(struct tty *, enum tty_code_code,
                     65:                    enum tty_code_code, u_int);
                     66: static void    tty_repeat_space(struct tty *, u_int);
                     67: static void    tty_cell(struct tty *, const struct grid_cell *,
                     68:                    const struct window_pane *);
                     69: static void    tty_default_colours(struct grid_cell *,
                     70:                    const struct window_pane *);
1.210     nicm       71: static void    tty_default_attributes(struct tty *, const struct window_pane *,
                     72:                    u_int);
1.1       nicm       73:
1.90      nicm       74: #define tty_use_acs(tty) \
1.131     nicm       75:        (tty_term_has((tty)->term, TTYC_ACSC) && !((tty)->flags & TTY_UTF8))
1.212     nicm       76: #define tty_use_margin(tty) \
1.214     nicm       77:        ((tty)->term_type == TTY_VT420)
1.90      nicm       78:
1.229     nicm       79: #define tty_pane_full_width(tty, ctx)                                  \
1.132     nicm       80:        ((ctx)->xoff == 0 && screen_size_x((ctx)->wp->screen) >= (tty)->sx)
                     81:
1.192     nicm       82: void
                     83: tty_create_log(void)
                     84: {
                     85:        char    name[64];
                     86:
                     87:        xsnprintf(name, sizeof name, "tmux-out-%ld.log", (long)getpid());
                     88:
                     89:        tty_log_fd = open(name, O_WRONLY|O_CREAT|O_TRUNC, 0644);
                     90:        if (tty_log_fd != -1 && fcntl(tty_log_fd, F_SETFD, FD_CLOEXEC) == -1)
                     91:                fatal("fcntl failed");
                     92: }
                     93:
1.185     nicm       94: int
1.136     nicm       95: tty_init(struct tty *tty, struct client *c, int fd, char *term)
1.1       nicm       96: {
1.185     nicm       97:        if (!isatty(fd))
                     98:                return (-1);
                     99:
1.30      nicm      100:        memset(tty, 0, sizeof *tty);
1.22      nicm      101:
1.9       nicm      102:        if (term == NULL || *term == '\0')
1.220     nicm      103:                tty->term_name = xstrdup("unknown");
1.1       nicm      104:        else
1.220     nicm      105:                tty->term_name = xstrdup(term);
1.258     nicm      106:
1.30      nicm      107:        tty->fd = fd;
1.136     nicm      108:        tty->client = c;
1.30      nicm      109:
1.108     nicm      110:        tty->cstyle = 0;
1.107     nicm      111:        tty->ccolour = xstrdup("");
1.30      nicm      112:
1.1       nicm      113:        tty->flags = 0;
1.212     nicm      114:
1.1       nicm      115:        tty->term_flags = 0;
1.212     nicm      116:        tty->term_type = TTY_UNKNOWN;
1.185     nicm      117:
                    118:        return (0);
1.31      nicm      119: }
                    120:
1.88      nicm      121: int
1.31      nicm      122: tty_resize(struct tty *tty)
                    123: {
1.258     nicm      124:        struct client   *c = tty->client;
                    125:        struct winsize   ws;
                    126:        u_int            sx, sy;
1.31      nicm      127:
                    128:        if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
1.88      nicm      129:                sx = ws.ws_col;
                    130:                if (sx == 0)
                    131:                        sx = 80;
                    132:                sy = ws.ws_row;
                    133:                if (sy == 0)
                    134:                        sy = 24;
                    135:        } else {
                    136:                sx = 80;
                    137:                sy = 24;
1.31      nicm      138:        }
1.258     nicm      139:        log_debug("%s: %s now %ux%u", __func__, c->name, sx, sy);
                    140:
1.114     nicm      141:        if (!tty_set_size(tty, sx, sy))
1.88      nicm      142:                return (0);
1.242     nicm      143:        tty_invalidate(tty);
1.114     nicm      144:        return (1);
                    145: }
                    146:
                    147: int
1.212     nicm      148: tty_set_size(struct tty *tty, u_int sx, u_int sy)
                    149: {
1.114     nicm      150:        if (sx == tty->sx && sy == tty->sy)
                    151:                return (0);
                    152:        tty->sx = sx;
                    153:        tty->sy = sy;
1.88      nicm      154:        return (1);
1.1       nicm      155: }
                    156:
1.244     nicm      157: static void
                    158: tty_read_callback(__unused int fd, __unused short events, void *data)
                    159: {
                    160:        struct tty      *tty = data;
1.258     nicm      161:        struct client   *c = tty->client;
1.244     nicm      162:        size_t           size = EVBUFFER_LENGTH(tty->in);
                    163:        int              nread;
                    164:
                    165:        nread = evbuffer_read(tty->in, tty->fd, -1);
                    166:        if (nread == -1)
                    167:                return;
1.258     nicm      168:        log_debug("%s: read %d bytes (already %zu)", c->name, nread, size);
1.244     nicm      169:
                    170:        while (tty_keys_next(tty))
                    171:                ;
                    172: }
                    173:
                    174: static void
                    175: tty_write_callback(__unused int fd, __unused short events, void *data)
                    176: {
1.246     nicm      177:        struct tty      *tty = data;
1.258     nicm      178:        struct client   *c = tty->client;
1.246     nicm      179:        size_t           size = EVBUFFER_LENGTH(tty->out);
                    180:        int              nwrite;
1.244     nicm      181:
                    182:        nwrite = evbuffer_write(tty->out, tty->fd);
                    183:        if (nwrite == -1)
                    184:                return;
1.258     nicm      185:        log_debug("%s: wrote %d bytes (of %zu)", c->name, nwrite, size);
1.244     nicm      186:
1.247     nicm      187:        if (EVBUFFER_LENGTH(tty->out) != 0)
                    188:                event_add(&tty->event_out, NULL);
1.244     nicm      189: }
                    190:
1.1       nicm      191: int
1.166     nicm      192: tty_open(struct tty *tty, char **cause)
1.1       nicm      193: {
1.220     nicm      194:        tty->term = tty_term_find(tty->term_name, tty->fd, cause);
1.21      nicm      195:        if (tty->term == NULL) {
                    196:                tty_close(tty);
                    197:                return (-1);
                    198:        }
                    199:        tty->flags |= TTY_OPENED;
1.1       nicm      200:
1.246     nicm      201:        tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.244     nicm      202:
                    203:        event_set(&tty->event_in, tty->fd, EV_PERSIST|EV_READ,
                    204:            tty_read_callback, tty);
                    205:        tty->in = evbuffer_new();
1.1       nicm      206:
1.244     nicm      207:        event_set(&tty->event_out, tty->fd, EV_WRITE, tty_write_callback, tty);
                    208:        tty->out = evbuffer_new();
1.1       nicm      209:
                    210:        tty_start_tty(tty);
                    211:
1.148     nicm      212:        tty_keys_build(tty);
1.1       nicm      213:
                    214:        return (0);
                    215: }
                    216:
1.244     nicm      217: void
                    218: tty_start_tty(struct tty *tty)
1.1       nicm      219: {
1.128     nicm      220:        struct termios  tio;
1.33      nicm      221:
1.244     nicm      222:        if (tty->fd != -1 && tcgetattr(tty->fd, &tty->tio) == 0) {
                    223:                setblocking(tty->fd, 0);
                    224:                event_add(&tty->event_in, NULL);
                    225:
                    226:                memcpy(&tio, &tty->tio, sizeof tio);
                    227:                tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
                    228:                tio.c_iflag |= IGNBRK;
                    229:                tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
                    230:                tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
                    231:                    ECHOPRT|ECHOKE|ISIG);
                    232:                tio.c_cc[VMIN] = 1;
                    233:                tio.c_cc[VTIME] = 0;
                    234:                if (tcsetattr(tty->fd, TCSANOW, &tio) == 0)
                    235:                        tcflush(tty->fd, TCIOFLUSH);
                    236:        }
1.1       nicm      237:
1.10      nicm      238:        tty_putcode(tty, TTYC_SMCUP);
1.1       nicm      239:
1.252     nicm      240:        tty_putcode(tty, TTYC_SMKX);
1.90      nicm      241:        if (tty_use_acs(tty))
                    242:                tty_putcode(tty, TTYC_ENACS);
1.1       nicm      243:        tty_putcode(tty, TTYC_CLEAR);
                    244:
                    245:        tty_putcode(tty, TTYC_CNORM);
                    246:        if (tty_term_has(tty->term, TTYC_KMOUS))
1.179     nicm      247:                tty_puts(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
1.121     nicm      248:
1.189     nicm      249:        if (tty_term_flag(tty->term, TTYC_XT)) {
1.191     nicm      250:                if (options_get_number(global_options, "focus-events")) {
1.162     nicm      251:                        tty->flags |= TTY_FOCUS;
                    252:                        tty_puts(tty, "\033[?1004h");
                    253:                }
1.212     nicm      254:                tty_puts(tty, "\033[c");
1.162     nicm      255:        }
1.1       nicm      256:
1.20      nicm      257:        tty->flags |= TTY_STARTED;
1.242     nicm      258:        tty_invalidate(tty);
1.107     nicm      259:
                    260:        tty_force_cursor_colour(tty, "");
1.177     nicm      261:
                    262:        tty->mouse_drag_flag = 0;
                    263:        tty->mouse_drag_update = NULL;
                    264:        tty->mouse_drag_release = NULL;
1.128     nicm      265: }
                    266:
                    267: void
1.1       nicm      268: tty_stop_tty(struct tty *tty)
                    269: {
                    270:        struct winsize  ws;
                    271:
1.20      nicm      272:        if (!(tty->flags & TTY_STARTED))
                    273:                return;
                    274:        tty->flags &= ~TTY_STARTED;
                    275:
1.244     nicm      276:        event_del(&tty->event_in);
                    277:        event_del(&tty->event_out);
1.66      nicm      278:
1.1       nicm      279:        /*
                    280:         * Be flexible about error handling and try not kill the server just
                    281:         * because the fd is invalid. Things like ssh -t can easily leave us
                    282:         * with a dead tty.
                    283:         */
                    284:        if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
                    285:                return;
                    286:        if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
                    287:                return;
                    288:
                    289:        tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
1.90      nicm      290:        if (tty_use_acs(tty))
                    291:                tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
1.1       nicm      292:        tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
                    293:        tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
                    294:        tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
1.160     nicm      295:        if (tty_term_has(tty->term, TTYC_SS) && tty->cstyle != 0) {
                    296:                if (tty_term_has(tty->term, TTYC_SE))
                    297:                        tty_raw(tty, tty_term_string(tty->term, TTYC_SE));
1.109     nicm      298:                else
1.160     nicm      299:                        tty_raw(tty, tty_term_string1(tty->term, TTYC_SS, 0));
1.108     nicm      300:        }
1.173     nicm      301:        if (tty->mode & MODE_BRACKETPASTE)
                    302:                tty_raw(tty, "\033[?2004l");
1.107     nicm      303:        tty_raw(tty, tty_term_string(tty->term, TTYC_CR));
1.1       nicm      304:
                    305:        tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
                    306:        if (tty_term_has(tty->term, TTYC_KMOUS))
1.179     nicm      307:                tty_raw(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
1.151     nicm      308:
1.189     nicm      309:        if (tty_term_flag(tty->term, TTYC_XT)) {
1.162     nicm      310:                if (tty->flags & TTY_FOCUS) {
                    311:                        tty->flags &= ~TTY_FOCUS;
1.172     nicm      312:                        tty_raw(tty, "\033[?1004l");
1.162     nicm      313:                }
                    314:        }
1.10      nicm      315:
1.212     nicm      316:        if (tty_use_margin(tty))
                    317:                tty_raw(tty, "\033[?69l"); /* DECLRMM */
1.10      nicm      318:        tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
1.150     nicm      319:
                    320:        setblocking(tty->fd, 1);
1.1       nicm      321: }
                    322:
                    323: void
1.20      nicm      324: tty_close(struct tty *tty)
1.1       nicm      325: {
1.123     nicm      326:        if (event_initialized(&tty->key_timer))
                    327:                evtimer_del(&tty->key_timer);
1.20      nicm      328:        tty_stop_tty(tty);
1.1       nicm      329:
1.21      nicm      330:        if (tty->flags & TTY_OPENED) {
1.244     nicm      331:                evbuffer_free(tty->in);
                    332:                event_del(&tty->event_in);
                    333:                evbuffer_free(tty->out);
                    334:                event_del(&tty->event_out);
1.66      nicm      335:
1.21      nicm      336:                tty_term_free(tty->term);
                    337:                tty_keys_free(tty);
                    338:
                    339:                tty->flags &= ~TTY_OPENED;
                    340:        }
1.1       nicm      341:
1.21      nicm      342:        if (tty->fd != -1) {
                    343:                close(tty->fd);
                    344:                tty->fd = -1;
                    345:        }
1.1       nicm      346: }
                    347:
                    348: void
1.20      nicm      349: tty_free(struct tty *tty)
1.1       nicm      350: {
1.20      nicm      351:        tty_close(tty);
1.1       nicm      352:
1.138     nicm      353:        free(tty->ccolour);
1.220     nicm      354:        free(tty->term_name);
1.1       nicm      355: }
                    356:
                    357: void
1.212     nicm      358: tty_set_type(struct tty *tty, int type)
                    359: {
                    360:        tty->term_type = type;
                    361:
                    362:        if (tty_use_margin(tty))
                    363:                tty_puts(tty, "\033[?69h"); /* DECLRMM */
                    364: }
                    365:
                    366: void
1.1       nicm      367: tty_raw(struct tty *tty, const char *s)
                    368: {
1.150     nicm      369:        ssize_t n, slen;
                    370:        u_int   i;
                    371:
                    372:        slen = strlen(s);
                    373:        for (i = 0; i < 5; i++) {
                    374:                n = write(tty->fd, s, slen);
                    375:                if (n >= 0) {
                    376:                        s += n;
                    377:                        slen -= n;
                    378:                        if (slen == 0)
                    379:                                break;
                    380:                } else if (n == -1 && errno != EAGAIN)
                    381:                        break;
                    382:                usleep(100);
                    383:        }
1.1       nicm      384: }
                    385:
                    386: void
                    387: tty_putcode(struct tty *tty, enum tty_code_code code)
                    388: {
                    389:        tty_puts(tty, tty_term_string(tty->term, code));
                    390: }
                    391:
                    392: void
                    393: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
                    394: {
                    395:        if (a < 0)
                    396:                return;
                    397:        tty_puts(tty, tty_term_string1(tty->term, code, a));
                    398: }
                    399:
                    400: void
                    401: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
                    402: {
                    403:        if (a < 0 || b < 0)
                    404:                return;
                    405:        tty_puts(tty, tty_term_string2(tty->term, code, a, b));
                    406: }
                    407:
                    408: void
1.107     nicm      409: tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a)
                    410: {
                    411:        if (a != NULL)
                    412:                tty_puts(tty, tty_term_ptr1(tty->term, code, a));
                    413: }
                    414:
                    415: void
1.167     nicm      416: tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a,
                    417:     const void *b)
1.106     nicm      418: {
                    419:        if (a != NULL && b != NULL)
                    420:                tty_puts(tty, tty_term_ptr2(tty->term, code, a, b));
                    421: }
                    422:
1.243     nicm      423: static void
                    424: tty_add(struct tty *tty, const char *buf, size_t len)
                    425: {
1.258     nicm      426:        struct client   *c = tty->client;
                    427:
1.244     nicm      428:        evbuffer_add(tty->out, buf, len);
1.258     nicm      429:        log_debug("%s: %.*s", c->name, (int)len, (const char *)buf);
1.263   ! nicm      430:        tty->written += len;
1.243     nicm      431:
                    432:        if (tty_log_fd != -1)
                    433:                write(tty_log_fd, buf, len);
1.244     nicm      434:        if (tty->flags & TTY_STARTED)
                    435:                event_add(&tty->event_out, NULL);
1.243     nicm      436: }
                    437:
1.106     nicm      438: void
1.1       nicm      439: tty_puts(struct tty *tty, const char *s)
                    440: {
1.243     nicm      441:        if (*s != '\0')
                    442:                tty_add(tty, s, strlen(s));
1.1       nicm      443: }
                    444:
                    445: void
                    446: tty_putc(struct tty *tty, u_char ch)
                    447: {
1.90      nicm      448:        const char      *acs;
1.1       nicm      449:
1.90      nicm      450:        if (tty->cell.attr & GRID_ATTR_CHARSET) {
                    451:                acs = tty_acs_get(tty, ch);
1.243     nicm      452:                if (acs != NULL)
                    453:                        tty_add(tty, acs, strlen(acs));
                    454:                else
                    455:                        tty_add(tty, &ch, 1);
                    456:        } else
                    457:                tty_add(tty, &ch, 1);
1.1       nicm      458:
                    459:        if (ch >= 0x20 && ch != 0x7f) {
1.211     nicm      460:                if (tty->cx >= tty->sx) {
1.46      nicm      461:                        tty->cx = 1;
                    462:                        if (tty->cy != tty->rlower)
                    463:                                tty->cy++;
1.211     nicm      464:
                    465:                        /*
                    466:                         * On !xenl terminals, force the cursor position to
                    467:                         * where we think it should be after a line wrap - this
                    468:                         * means it works on sensible terminals as well.
                    469:                         */
                    470:                        if (tty->term->flags & TERM_EARLYWRAP)
                    471:                                tty_putcode2(tty, TTYC_CUP, tty->cy, tty->cx);
1.1       nicm      472:                } else
                    473:                        tty->cx++;
                    474:        }
                    475: }
                    476:
                    477: void
1.147     nicm      478: tty_putn(struct tty *tty, const void *buf, size_t len, u_int width)
1.5       nicm      479: {
1.243     nicm      480:        tty_add(tty, buf, len);
1.254     nicm      481:        if (tty->cx + width > tty->sx)
                    482:                tty->cx = tty->cy = UINT_MAX;
                    483:        else
                    484:                tty->cx += width;
1.5       nicm      485: }
                    486:
1.207     nicm      487: static void
1.180     nicm      488: tty_set_italics(struct tty *tty)
                    489: {
                    490:        const char      *s;
                    491:
                    492:        if (tty_term_has(tty->term, TTYC_SITM)) {
1.191     nicm      493:                s = options_get_string(global_options, "default-terminal");
1.180     nicm      494:                if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) {
                    495:                        tty_putcode(tty, TTYC_SITM);
                    496:                        return;
                    497:                }
                    498:        }
                    499:        tty_putcode(tty, TTYC_SMSO);
                    500: }
                    501:
                    502: void
1.1       nicm      503: tty_set_title(struct tty *tty, const char *title)
                    504: {
1.105     nicm      505:        if (!tty_term_has(tty->term, TTYC_TSL) ||
                    506:            !tty_term_has(tty->term, TTYC_FSL))
1.1       nicm      507:                return;
                    508:
1.105     nicm      509:        tty_putcode(tty, TTYC_TSL);
1.1       nicm      510:        tty_puts(tty, title);
1.105     nicm      511:        tty_putcode(tty, TTYC_FSL);
1.1       nicm      512: }
                    513:
1.208     nicm      514: static void
1.107     nicm      515: tty_force_cursor_colour(struct tty *tty, const char *ccolour)
                    516: {
                    517:        if (*ccolour == '\0')
                    518:                tty_putcode(tty, TTYC_CR);
                    519:        else
1.160     nicm      520:                tty_putcode_ptr1(tty, TTYC_CS, ccolour);
1.138     nicm      521:        free(tty->ccolour);
1.107     nicm      522:        tty->ccolour = xstrdup(ccolour);
                    523: }
                    524:
                    525: void
                    526: tty_update_mode(struct tty *tty, int mode, struct screen *s)
1.1       nicm      527: {
                    528:        int     changed;
                    529:
1.197     nicm      530:        if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0)
1.107     nicm      531:                tty_force_cursor_colour(tty, s->ccolour);
                    532:
1.1       nicm      533:        if (tty->flags & TTY_NOCURSOR)
                    534:                mode &= ~MODE_CURSOR;
                    535:
                    536:        changed = mode ^ tty->mode;
1.183     nicm      537:        if (changed & MODE_BLINKING) {
                    538:                if (tty_term_has(tty->term, TTYC_CVVIS))
                    539:                        tty_putcode(tty, TTYC_CVVIS);
                    540:                else
                    541:                        tty_putcode(tty, TTYC_CNORM);
                    542:                changed |= MODE_CURSOR;
                    543:        }
                    544:        if (changed & MODE_CURSOR) {
                    545:                if (mode & MODE_CURSOR)
                    546:                        tty_putcode(tty, TTYC_CNORM);
                    547:                else
1.1       nicm      548:                        tty_putcode(tty, TTYC_CIVIS);
1.108     nicm      549:        }
1.181     nicm      550:        if (s != NULL && tty->cstyle != s->cstyle) {
1.160     nicm      551:                if (tty_term_has(tty->term, TTYC_SS)) {
1.108     nicm      552:                        if (s->cstyle == 0 &&
1.160     nicm      553:                            tty_term_has(tty->term, TTYC_SE))
                    554:                                tty_putcode(tty, TTYC_SE);
1.108     nicm      555:                        else
1.160     nicm      556:                                tty_putcode1(tty, TTYC_SS, s->cstyle);
1.108     nicm      557:                }
                    558:                tty->cstyle = s->cstyle;
1.1       nicm      559:        }
1.195     nicm      560:        if (changed & ALL_MOUSE_MODES) {
1.94      nicm      561:                if (mode & ALL_MOUSE_MODES) {
1.153     nicm      562:                        /*
                    563:                         * Enable the SGR (1006) extension unconditionally, as
1.221     nicm      564:                         * it is safe from misinterpretation.
1.153     nicm      565:                         */
                    566:                        tty_puts(tty, "\033[?1006h");
1.225     nicm      567:                        if (mode & MODE_MOUSE_ALL)
                    568:                                tty_puts(tty, "\033[?1003h");
                    569:                        else if (mode & MODE_MOUSE_BUTTON)
1.94      nicm      570:                                tty_puts(tty, "\033[?1002h");
1.98      nicm      571:                        else if (mode & MODE_MOUSE_STANDARD)
                    572:                                tty_puts(tty, "\033[?1000h");
1.86      nicm      573:                } else {
1.225     nicm      574:                        if (tty->mode & MODE_MOUSE_ALL)
                    575:                                tty_puts(tty, "\033[?1003l");
                    576:                        else if (tty->mode & MODE_MOUSE_BUTTON)
1.94      nicm      577:                                tty_puts(tty, "\033[?1002l");
1.98      nicm      578:                        else if (tty->mode & MODE_MOUSE_STANDARD)
                    579:                                tty_puts(tty, "\033[?1000l");
1.153     nicm      580:                        tty_puts(tty, "\033[?1006l");
1.86      nicm      581:                }
1.115     nicm      582:        }
                    583:        if (changed & MODE_BRACKETPASTE) {
                    584:                if (mode & MODE_BRACKETPASTE)
                    585:                        tty_puts(tty, "\033[?2004h");
                    586:                else
                    587:                        tty_puts(tty, "\033[?2004l");
1.1       nicm      588:        }
                    589:        tty->mode = mode;
                    590: }
                    591:
1.207     nicm      592: static void
1.168     nicm      593: tty_emulate_repeat(struct tty *tty, enum tty_code_code code,
                    594:     enum tty_code_code code1, u_int n)
1.1       nicm      595: {
                    596:        if (tty_term_has(tty->term, code))
                    597:                tty_putcode1(tty, code, n);
                    598:        else {
                    599:                while (n-- > 0)
                    600:                        tty_putcode(tty, code1);
                    601:        }
                    602: }
                    603:
1.207     nicm      604: static void
1.133     nicm      605: tty_repeat_space(struct tty *tty, u_int n)
                    606: {
1.257     nicm      607:        static char s[500];
                    608:
                    609:        if (*s != ' ')
                    610:                memset(s, ' ', sizeof s);
                    611:
                    612:        while (n > sizeof s) {
                    613:                tty_putn(tty, s, sizeof s, sizeof s);
                    614:                n -= sizeof s;
                    615:        }
                    616:        if (n != 0)
                    617:                tty_putn(tty, s, n, n);
1.133     nicm      618: }
                    619:
1.1       nicm      620: /*
1.119     nicm      621:  * Is the region large enough to be worth redrawing once later rather than
                    622:  * probably several times now? Currently yes if it is more than 50% of the
                    623:  * pane.
                    624:  */
1.207     nicm      625: static int
1.194     nicm      626: tty_large_region(__unused struct tty *tty, const struct tty_ctx *ctx)
1.119     nicm      627: {
                    628:        struct window_pane      *wp = ctx->wp;
                    629:
                    630:        return (ctx->orlower - ctx->orupper >= screen_size_y(wp->screen) / 2);
                    631: }
                    632:
                    633: /*
1.176     nicm      634:  * Return if BCE is needed but the terminal doesn't have it - it'll need to be
                    635:  * emulated.
                    636:  */
1.207     nicm      637: static int
1.210     nicm      638: tty_fake_bce(const struct tty *tty, const struct window_pane *wp, u_int bg)
1.176     nicm      639: {
                    640:        struct grid_cell        gc;
                    641:
1.210     nicm      642:        if (tty_term_flag(tty->term, TTYC_BCE))
                    643:                return (0);
                    644:
1.176     nicm      645:        memcpy(&gc, &grid_default_cell, sizeof gc);
1.203     nicm      646:        if (wp != NULL)
                    647:                tty_default_colours(&gc, wp);
1.176     nicm      648:
1.210     nicm      649:        if (bg != 8 || gc.bg != 8)
                    650:                return (1);
                    651:        return (0);
1.176     nicm      652: }
                    653:
                    654: /*
1.1       nicm      655:  * Redraw scroll region using data from screen (already updated). Used when
                    656:  * CSR not supported, or window is a pane that doesn't take up the full
                    657:  * width of the terminal.
                    658:  */
1.207     nicm      659: static void
1.24      nicm      660: tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      661: {
1.14      nicm      662:        struct window_pane      *wp = ctx->wp;
                    663:        struct screen           *s = wp->screen;
1.204     nicm      664:        u_int                    i;
1.1       nicm      665:
                    666:        /*
1.119     nicm      667:         * If region is large, schedule a window redraw. In most cases this is
                    668:         * likely to be followed by some more scrolling.
1.1       nicm      669:         */
1.119     nicm      670:        if (tty_large_region(tty, ctx)) {
1.1       nicm      671:                wp->flags |= PANE_REDRAW;
                    672:                return;
                    673:        }
                    674:
1.14      nicm      675:        if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
                    676:                for (i = ctx->ocy; i < screen_size_y(s); i++)
1.176     nicm      677:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      678:        } else {
1.14      nicm      679:                for (i = ctx->orupper; i <= ctx->orlower; i++)
1.176     nicm      680:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      681:        }
                    682: }
                    683:
                    684: void
1.176     nicm      685: tty_draw_pane(struct tty *tty, const struct window_pane *wp, u_int py, u_int ox,
                    686:     u_int oy)
                    687: {
                    688:        tty_draw_line(tty, wp, wp->screen, py, ox, oy);
                    689: }
                    690:
                    691: void
                    692: tty_draw_line(struct tty *tty, const struct window_pane *wp,
                    693:     struct screen *s, u_int py, u_int ox, u_int oy)
1.1       nicm      694: {
1.250     nicm      695:        struct grid_cell         gc, last;
                    696:        u_int                    i, j, sx, width;
1.259     nicm      697:        int                      flags, cleared = 0;
1.250     nicm      698:        char                     buf[512];
                    699:        size_t                   len;
1.1       nicm      700:
1.259     nicm      701:        flags = (tty->flags & TTY_NOCURSOR);
1.181     nicm      702:        tty->flags |= TTY_NOCURSOR;
                    703:        tty_update_mode(tty, tty->mode, s);
1.35      nicm      704:
1.214     nicm      705:        tty_region_off(tty);
                    706:        tty_margin_off(tty);
                    707:
1.1       nicm      708:        sx = screen_size_x(s);
1.250     nicm      709:        if (sx > s->grid->linedata[s->grid->hsize + py].cellused)
                    710:                sx = s->grid->linedata[s->grid->hsize + py].cellused;
1.1       nicm      711:        if (sx > tty->sx)
                    712:                sx = tty->sx;
                    713:
1.259     nicm      714:        if (screen_size_x(s) < tty->sx &&
                    715:            ox == 0 &&
                    716:            sx != screen_size_x(s) &&
                    717:            tty_term_has(tty->term, TTYC_EL1) &&
                    718:            !tty_fake_bce(tty, wp, 8)) {
                    719:                tty_default_attributes(tty, wp, 8);
                    720:                tty_cursor(tty, screen_size_x(s) - 1, oy + py);
                    721:                tty_putcode(tty, TTYC_EL1);
                    722:                cleared = 1;
                    723:        }
1.261     nicm      724:        if (sx != 0)
                    725:                tty_cursor(tty, ox, oy + py);
1.250     nicm      726:
                    727:        memcpy(&last, &grid_default_cell, sizeof last);
                    728:        len = 0;
                    729:        width = 0;
1.46      nicm      730:
1.1       nicm      731:        for (i = 0; i < sx; i++) {
1.193     nicm      732:                grid_view_get_cell(s->grid, i, py, &gc);
1.250     nicm      733:                if (len != 0 &&
1.251     nicm      734:                    (((~tty->flags & TTY_UTF8) &&
                    735:                    (gc.data.size != 1 ||
                    736:                    *gc.data.data >= 0x7f ||
                    737:                    gc.data.width != 1)) ||
                    738:                    (gc.attr & GRID_ATTR_CHARSET) ||
1.250     nicm      739:                    gc.flags != last.flags ||
                    740:                    gc.attr != last.attr ||
                    741:                    gc.fg != last.fg ||
                    742:                    gc.bg != last.bg ||
                    743:                    (sizeof buf) - len < gc.data.size)) {
                    744:                        tty_attributes(tty, &last, wp);
                    745:                        tty_putn(tty, buf, len, width);
                    746:
                    747:                        len = 0;
                    748:                        width = 0;
                    749:                }
                    750:
                    751:                if (gc.flags & GRID_FLAG_SELECTED)
                    752:                        screen_select_cell(s, &last, &gc);
                    753:                else
                    754:                        memcpy(&last, &gc, sizeof last);
1.251     nicm      755:                if (((~tty->flags & TTY_UTF8) &&
                    756:                    (gc.data.size != 1 ||
                    757:                    *gc.data.data >= 0x7f ||
                    758:                    gc.data.width != 1)) ||
                    759:                    (gc.attr & GRID_ATTR_CHARSET)) {
1.250     nicm      760:                        tty_attributes(tty, &last, wp);
1.251     nicm      761:                        if (~tty->flags & TTY_UTF8) {
                    762:                                for (j = 0; j < gc.data.width; j++)
                    763:                                        tty_putc(tty, '_');
                    764:                        } else {
                    765:                                for (j = 0; j < gc.data.size; j++)
                    766:                                        tty_putc(tty, gc.data.data[j]);
                    767:                        }
1.250     nicm      768:                } else {
                    769:                        memcpy(buf + len, gc.data.data, gc.data.size);
                    770:                        len += gc.data.size;
                    771:                        width += gc.data.width;
                    772:                }
                    773:        }
                    774:        if (len != 0) {
                    775:                tty_attributes(tty, &last, wp);
                    776:                tty_putn(tty, buf, len, width);
1.1       nicm      777:        }
                    778:
1.259     nicm      779:        if (!cleared && sx < tty->sx) {
1.210     nicm      780:                tty_default_attributes(tty, wp, 8);
1.181     nicm      781:                tty_cursor(tty, ox + sx, oy + py);
                    782:                if (sx != screen_size_x(s) &&
                    783:                    ox + screen_size_x(s) >= tty->sx &&
                    784:                    tty_term_has(tty->term, TTYC_EL) &&
1.210     nicm      785:                    !tty_fake_bce(tty, wp, 8))
1.181     nicm      786:                        tty_putcode(tty, TTYC_EL);
                    787:                else
                    788:                        tty_repeat_space(tty, screen_size_x(s) - sx);
1.35      nicm      789:        }
1.1       nicm      790:
1.181     nicm      791:        tty->flags = (tty->flags & ~TTY_NOCURSOR) | flags;
1.107     nicm      792:        tty_update_mode(tty, tty->mode, s);
1.15      nicm      793: }
                    794:
1.201     nicm      795: static int
1.182     nicm      796: tty_client_ready(struct client *c, struct window_pane *wp)
                    797: {
                    798:        if (c->session == NULL || c->tty.term == NULL)
                    799:                return (0);
1.244     nicm      800:        if (c->flags & (CLIENT_REDRAW|CLIENT_SUSPENDED))
1.182     nicm      801:                return (0);
                    802:        if (c->tty.flags & TTY_FREEZE)
                    803:                return (0);
                    804:        if (c->session->curw->window != wp->window)
                    805:                return (0);
                    806:        return (1);
                    807: }
                    808:
1.15      nicm      809: void
1.182     nicm      810: tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *),
                    811:     struct tty_ctx *ctx)
1.15      nicm      812: {
                    813:        struct window_pane      *wp = ctx->wp;
                    814:        struct client           *c;
                    815:
1.75      nicm      816:        /* wp can be NULL if updating the screen but not the terminal. */
1.15      nicm      817:        if (wp == NULL)
                    818:                return;
                    819:
1.260     nicm      820:        if ((wp->flags & (PANE_REDRAW|PANE_DROP)) || !window_pane_visible(wp))
1.15      nicm      821:                return;
                    822:
1.178     nicm      823:        TAILQ_FOREACH(c, &clients, entry) {
1.182     nicm      824:                if (!tty_client_ready(c, wp))
1.15      nicm      825:                        continue;
                    826:
1.139     nicm      827:                ctx->xoff = wp->xoff;
                    828:                ctx->yoff = wp->yoff;
                    829:                if (status_at_line(c) == 0)
                    830:                        ctx->yoff++;
1.113     nicm      831:
1.139     nicm      832:                cmdfn(&c->tty, ctx);
1.1       nicm      833:        }
                    834: }
                    835:
                    836: void
1.24      nicm      837: tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      838: {
1.77      nicm      839:        struct window_pane      *wp = ctx->wp;
1.1       nicm      840:
1.210     nicm      841:        if (!tty_pane_full_width(tty, ctx) ||
                    842:            tty_fake_bce(tty, wp, ctx->bg) ||
                    843:            (!tty_term_has(tty->term, TTYC_ICH) &&
                    844:            !tty_term_has(tty->term, TTYC_ICH1))) {
1.176     nicm      845:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      846:                return;
                    847:        }
                    848:
1.210     nicm      849:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      850:
1.77      nicm      851:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      852:
1.206     nicm      853:        tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
1.1       nicm      854: }
                    855:
                    856: void
1.24      nicm      857: tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      858: {
1.77      nicm      859:        struct window_pane      *wp = ctx->wp;
1.1       nicm      860:
1.210     nicm      861:        if (!tty_pane_full_width(tty, ctx) ||
                    862:            tty_fake_bce(tty, wp, ctx->bg) ||
1.26      nicm      863:            (!tty_term_has(tty->term, TTYC_DCH) &&
                    864:            !tty_term_has(tty->term, TTYC_DCH1))) {
1.176     nicm      865:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      866:                return;
                    867:        }
                    868:
1.210     nicm      869:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      870:
1.77      nicm      871:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      872:
1.206     nicm      873:        tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
1.146     nicm      874: }
                    875:
                    876: void
                    877: tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx)
                    878: {
1.176     nicm      879:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.146     nicm      880:
                    881:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    882:
1.210     nicm      883:        if (tty_term_has(tty->term, TTYC_ECH) &&
1.262     nicm      884:            !tty_fake_bce(tty, ctx->wp, 8))
1.146     nicm      885:                tty_putcode1(tty, TTYC_ECH, ctx->num);
1.257     nicm      886:        else
                    887:                tty_repeat_space(tty, ctx->num);
1.1       nicm      888: }
                    889:
                    890: void
1.24      nicm      891: tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      892: {
1.210     nicm      893:        if (!tty_pane_full_width(tty, ctx) ||
                    894:            tty_fake_bce(tty, ctx->wp, ctx->bg) ||
1.77      nicm      895:            !tty_term_has(tty->term, TTYC_CSR) ||
1.72      nicm      896:            !tty_term_has(tty->term, TTYC_IL1)) {
1.14      nicm      897:                tty_redraw_region(tty, ctx);
1.1       nicm      898:                return;
                    899:        }
                    900:
1.210     nicm      901:        tty_default_attributes(tty, ctx->wp, ctx->bg);
1.1       nicm      902:
1.77      nicm      903:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.214     nicm      904:        tty_margin_off(tty);
1.77      nicm      905:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      906:
1.12      nicm      907:        tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
1.1       nicm      908: }
                    909:
                    910: void
1.24      nicm      911: tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      912: {
1.210     nicm      913:        if (!tty_pane_full_width(tty, ctx) ||
                    914:            tty_fake_bce(tty, ctx->wp, ctx->bg) ||
1.72      nicm      915:            !tty_term_has(tty->term, TTYC_CSR) ||
                    916:            !tty_term_has(tty->term, TTYC_DL1)) {
1.14      nicm      917:                tty_redraw_region(tty, ctx);
1.1       nicm      918:                return;
                    919:        }
                    920:
1.210     nicm      921:        tty_default_attributes(tty, ctx->wp, ctx->bg);
1.1       nicm      922:
1.77      nicm      923:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.214     nicm      924:        tty_margin_off(tty);
1.77      nicm      925:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      926:
1.12      nicm      927:        tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
1.1       nicm      928: }
                    929:
                    930: void
1.24      nicm      931: tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      932: {
1.77      nicm      933:        struct window_pane      *wp = ctx->wp;
1.12      nicm      934:        struct screen           *s = wp->screen;
1.229     nicm      935:        u_int                    sx = screen_size_x(s);
1.1       nicm      936:
1.210     nicm      937:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      938:
1.77      nicm      939:        tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.41      nicm      940:
1.210     nicm      941:        if (tty_pane_full_width(tty, ctx) &&
                    942:            !tty_fake_bce(tty, wp, ctx->bg) &&
1.176     nicm      943:            tty_term_has(tty->term, TTYC_EL))
1.1       nicm      944:                tty_putcode(tty, TTYC_EL);
1.133     nicm      945:        else
1.229     nicm      946:                tty_repeat_space(tty, sx);
1.1       nicm      947: }
                    948:
                    949: void
1.24      nicm      950: tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      951: {
1.77      nicm      952:        struct window_pane      *wp = ctx->wp;
1.12      nicm      953:        struct screen           *s = wp->screen;
1.229     nicm      954:        u_int                    sx = screen_size_x(s);
1.1       nicm      955:
1.210     nicm      956:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      957:
1.41      nicm      958:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    959:
1.176     nicm      960:        if (tty_pane_full_width(tty, ctx) &&
1.210     nicm      961:            tty_term_has(tty->term, TTYC_EL) &&
                    962:            !tty_fake_bce(tty, wp, ctx->bg))
1.1       nicm      963:                tty_putcode(tty, TTYC_EL);
1.133     nicm      964:        else
1.229     nicm      965:                tty_repeat_space(tty, sx - ctx->ocx);
1.1       nicm      966: }
                    967:
                    968: void
1.24      nicm      969: tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      970: {
1.210     nicm      971:        struct window_pane      *wp = ctx->wp;
                    972:
                    973:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      974:
1.210     nicm      975:        if (ctx->xoff == 0 &&
                    976:            tty_term_has(tty->term, TTYC_EL1) &&
1.238     nicm      977:            !tty_fake_bce(tty, ctx->wp, ctx->bg)) {
                    978:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      979:                tty_putcode(tty, TTYC_EL1);
1.238     nicm      980:        } else {
                    981:                tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.133     nicm      982:                tty_repeat_space(tty, ctx->ocx + 1);
1.238     nicm      983:        }
1.1       nicm      984: }
                    985:
                    986: void
1.24      nicm      987: tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      988: {
1.56      nicm      989:        if (ctx->ocy != ctx->orupper)
                    990:                return;
                    991:
1.210     nicm      992:        if (!tty_pane_full_width(tty, ctx) ||
1.262     nicm      993:            tty_fake_bce(tty, ctx->wp, 8) ||
1.70      nicm      994:            !tty_term_has(tty->term, TTYC_CSR) ||
                    995:            !tty_term_has(tty->term, TTYC_RI)) {
1.14      nicm      996:                tty_redraw_region(tty, ctx);
1.1       nicm      997:                return;
                    998:        }
                    999:
1.176     nicm     1000:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.77      nicm     1001:
1.56      nicm     1002:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.214     nicm     1003:        tty_margin_off(tty);
1.56      nicm     1004:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
1.77      nicm     1005:
1.56      nicm     1006:        tty_putcode(tty, TTYC_RI);
1.1       nicm     1007: }
                   1008:
                   1009: void
1.24      nicm     1010: tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1011: {
1.77      nicm     1012:        struct window_pane      *wp = ctx->wp;
1.1       nicm     1013:
1.56      nicm     1014:        if (ctx->ocy != ctx->orlower)
                   1015:                return;
                   1016:
1.212     nicm     1017:        if ((!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) ||
1.262     nicm     1018:            tty_fake_bce(tty, wp, 8) ||
1.1       nicm     1019:            !tty_term_has(tty->term, TTYC_CSR)) {
1.236     nicm     1020:                tty_redraw_region(tty, ctx);
1.1       nicm     1021:                return;
                   1022:        }
1.52      nicm     1023:
1.176     nicm     1024:        tty_attributes(tty, &grid_default_cell, wp);
1.77      nicm     1025:
1.56      nicm     1026:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.212     nicm     1027:        tty_margin_pane(tty, ctx);
                   1028:
                   1029:        /*
                   1030:         * If we want to wrap a pane, the cursor needs to be exactly on the
                   1031:         * right of the region. But if the pane isn't on the right, it may be
                   1032:         * off the edge - if so, move the cursor back to the right.
                   1033:         */
                   1034:        if (ctx->xoff + ctx->ocx > tty->rright)
1.216     nicm     1035:                tty_cursor(tty, tty->rright, ctx->yoff + ctx->ocy);
1.212     nicm     1036:        else
                   1037:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.77      nicm     1038:
1.56      nicm     1039:        tty_putc(tty, '\n');
1.240     nicm     1040: }
                   1041:
                   1042: void
                   1043: tty_cmd_scrollup(struct tty *tty, const struct tty_ctx *ctx)
                   1044: {
                   1045:        struct window_pane      *wp = ctx->wp;
                   1046:        u_int                    i;
                   1047:
                   1048:        if ((!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) ||
1.262     nicm     1049:            tty_fake_bce(tty, wp, 8) ||
1.240     nicm     1050:            !tty_term_has(tty->term, TTYC_CSR)) {
                   1051:                tty_redraw_region(tty, ctx);
                   1052:                return;
                   1053:        }
                   1054:
                   1055:        tty_attributes(tty, &grid_default_cell, wp);
                   1056:
                   1057:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                   1058:        tty_margin_pane(tty, ctx);
                   1059:
                   1060:        if (ctx->num == 1 || !tty_term_has(tty->term, TTYC_INDN)) {
1.241     nicm     1061:                tty_cursor(tty, tty->rright, tty->rlower);
1.240     nicm     1062:                for (i = 0; i < ctx->num; i++)
                   1063:                        tty_putc(tty, '\n');
                   1064:        } else
                   1065:                tty_putcode1(tty, TTYC_INDN, ctx->num);
1.1       nicm     1066: }
                   1067:
                   1068: void
1.24      nicm     1069: tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1070: {
1.77      nicm     1071:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1072:        struct screen           *s = wp->screen;
1.204     nicm     1073:        u_int                    i, j;
1.229     nicm     1074:        u_int                    sx = screen_size_x(s), sy = screen_size_y(s);
1.1       nicm     1075:
1.210     nicm     1076:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm     1077:
1.229     nicm     1078:        tty_region_pane(tty, ctx, 0, sy - 1);
1.214     nicm     1079:        tty_margin_off(tty);
1.39      nicm     1080:
1.176     nicm     1081:        if (tty_pane_full_width(tty, ctx) &&
1.248     nicm     1082:            ctx->yoff + wp->sy >= tty->sy - 1 &&
1.229     nicm     1083:            status_at_line(tty->client) <= 0 &&
                   1084:            tty_term_has(tty->term, TTYC_ED)) {
                   1085:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                   1086:                tty_putcode(tty, TTYC_ED);
                   1087:        } else if (tty_pane_full_width(tty, ctx) &&
1.210     nicm     1088:            tty_term_has(tty->term, TTYC_EL) &&
                   1089:            !tty_fake_bce(tty, wp, ctx->bg)) {
1.229     nicm     1090:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm     1091:                tty_putcode(tty, TTYC_EL);
1.229     nicm     1092:                if (ctx->ocy != sy - 1) {
1.41      nicm     1093:                        tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
1.229     nicm     1094:                        for (i = ctx->ocy + 1; i < sy; i++) {
1.1       nicm     1095:                                tty_putcode(tty, TTYC_EL);
1.229     nicm     1096:                                if (i == sy - 1)
1.1       nicm     1097:                                        continue;
                   1098:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1099:                                tty->cy++;
                   1100:                        }
                   1101:                }
                   1102:        } else {
1.229     nicm     1103:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                   1104:                tty_repeat_space(tty, sx - ctx->ocx);
                   1105:                for (j = ctx->ocy + 1; j < sy; j++) {
1.41      nicm     1106:                        tty_cursor_pane(tty, ctx, 0, j);
1.229     nicm     1107:                        tty_repeat_space(tty, sx);
1.1       nicm     1108:                }
                   1109:        }
                   1110: }
                   1111:
                   1112: void
1.24      nicm     1113: tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1114: {
1.77      nicm     1115:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1116:        struct screen           *s = wp->screen;
1.204     nicm     1117:        u_int                    i, j;
1.229     nicm     1118:        u_int                    sx = screen_size_x(s), sy = screen_size_y(s);
1.1       nicm     1119:
1.227     nicm     1120:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm     1121:
1.229     nicm     1122:        tty_region_pane(tty, ctx, 0, sy - 1);
1.214     nicm     1123:        tty_margin_off(tty);
1.39      nicm     1124:
1.230     nicm     1125:        if (tty_pane_full_width(tty, ctx) &&
1.210     nicm     1126:            tty_term_has(tty->term, TTYC_EL) &&
                   1127:            !tty_fake_bce(tty, wp, ctx->bg)) {
1.229     nicm     1128:                tty_cursor_pane(tty, ctx, 0, 0);
1.14      nicm     1129:                for (i = 0; i < ctx->ocy; i++) {
1.1       nicm     1130:                        tty_putcode(tty, TTYC_EL);
                   1131:                        tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1132:                        tty->cy++;
                   1133:                }
                   1134:        } else {
1.229     nicm     1135:                tty_cursor_pane(tty, ctx, 0, 0);
1.14      nicm     1136:                for (j = 0; j < ctx->ocy; j++) {
1.41      nicm     1137:                        tty_cursor_pane(tty, ctx, 0, j);
1.229     nicm     1138:                        tty_repeat_space(tty, sx);
1.1       nicm     1139:                }
                   1140:        }
1.229     nicm     1141:        tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.133     nicm     1142:        tty_repeat_space(tty, ctx->ocx + 1);
1.1       nicm     1143: }
                   1144:
                   1145: void
1.24      nicm     1146: tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1147: {
1.77      nicm     1148:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1149:        struct screen           *s = wp->screen;
1.204     nicm     1150:        u_int                    i, j;
1.229     nicm     1151:        u_int                    sx = screen_size_x(s), sy = screen_size_y(s);
1.1       nicm     1152:
1.210     nicm     1153:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm     1154:
1.229     nicm     1155:        tty_region_pane(tty, ctx, 0, sy - 1);
1.214     nicm     1156:        tty_margin_off(tty);
1.39      nicm     1157:
1.176     nicm     1158:        if (tty_pane_full_width(tty, ctx) &&
1.229     nicm     1159:            status_at_line(tty->client) <= 0 &&
                   1160:            tty_term_has(tty->term, TTYC_ED)) {
                   1161:                tty_cursor_pane(tty, ctx, 0, 0);
                   1162:                tty_putcode(tty, TTYC_ED);
1.230     nicm     1163:        } else if (tty_pane_full_width(tty, ctx) &&
1.210     nicm     1164:            tty_term_has(tty->term, TTYC_EL) &&
                   1165:            !tty_fake_bce(tty, wp, ctx->bg)) {
1.229     nicm     1166:                tty_cursor_pane(tty, ctx, 0, 0);
                   1167:                for (i = 0; i < sy; i++) {
1.1       nicm     1168:                        tty_putcode(tty, TTYC_EL);
1.229     nicm     1169:                        if (i != sy - 1) {
1.1       nicm     1170:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1171:                                tty->cy++;
                   1172:                        }
                   1173:                }
                   1174:        } else {
1.229     nicm     1175:                tty_cursor_pane(tty, ctx, 0, 0);
                   1176:                for (j = 0; j < sy; j++) {
1.41      nicm     1177:                        tty_cursor_pane(tty, ctx, 0, j);
1.229     nicm     1178:                        tty_repeat_space(tty, sx);
1.1       nicm     1179:                }
1.4       nicm     1180:        }
                   1181: }
                   1182:
                   1183: void
1.24      nicm     1184: tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
1.4       nicm     1185: {
1.12      nicm     1186:        struct window_pane      *wp = ctx->wp;
                   1187:        struct screen           *s = wp->screen;
                   1188:        u_int                    i, j;
1.4       nicm     1189:
1.176     nicm     1190:        tty_attributes(tty, &grid_default_cell, wp);
1.4       nicm     1191:
1.39      nicm     1192:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.214     nicm     1193:        tty_margin_off(tty);
1.4       nicm     1194:
                   1195:        for (j = 0; j < screen_size_y(s); j++) {
1.41      nicm     1196:                tty_cursor_pane(tty, ctx, 0, j);
1.4       nicm     1197:                for (i = 0; i < screen_size_x(s); i++)
                   1198:                        tty_putc(tty, 'E');
1.1       nicm     1199:        }
                   1200: }
                   1201:
                   1202: void
1.24      nicm     1203: tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1204: {
1.222     nicm     1205:        if (ctx->xoff + ctx->ocx > tty->sx - 1 && ctx->ocy == ctx->orlower) {
                   1206:                if (tty_pane_full_width(tty, ctx))
                   1207:                        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                   1208:                else
                   1209:                        tty_margin_off(tty);
                   1210:        }
1.46      nicm     1211:
1.253     nicm     1212:        tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm     1213:
1.237     nicm     1214:        tty_cell(tty, ctx->cell, ctx->wp);
1.239     nicm     1215: }
                   1216:
                   1217: void
                   1218: tty_cmd_cells(struct tty *tty, const struct tty_ctx *ctx)
                   1219: {
1.253     nicm     1220:        tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy);
1.239     nicm     1221:
                   1222:        tty_attributes(tty, ctx->cell, ctx->wp);
                   1223:        tty_putn(tty, ctx->ptr, ctx->num, ctx->num);
1.106     nicm     1224: }
                   1225:
                   1226: void
                   1227: tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx)
                   1228: {
                   1229:        char    *buf;
                   1230:        size_t   off;
                   1231:
                   1232:        if (!tty_term_has(tty->term, TTYC_MS))
                   1233:                return;
                   1234:
                   1235:        off = 4 * ((ctx->num + 2) / 3) + 1; /* storage for base64 */
                   1236:        buf = xmalloc(off);
                   1237:
                   1238:        b64_ntop(ctx->ptr, ctx->num, buf, off);
                   1239:        tty_putcode_ptr2(tty, TTYC_MS, "", buf);
                   1240:
1.138     nicm     1241:        free(buf);
1.100     nicm     1242: }
                   1243:
                   1244: void
                   1245: tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
                   1246: {
1.256     nicm     1247:        tty_add(tty, ctx->ptr, ctx->num);
1.242     nicm     1248:        tty_invalidate(tty);
1.1       nicm     1249: }
                   1250:
1.207     nicm     1251: static void
1.176     nicm     1252: tty_cell(struct tty *tty, const struct grid_cell *gc,
                   1253:     const struct window_pane *wp)
1.1       nicm     1254: {
1.193     nicm     1255:        u_int   i;
1.1       nicm     1256:
                   1257:        /* Skip last character if terminal is stupid. */
1.211     nicm     1258:        if ((tty->term->flags & TERM_EARLYWRAP) &&
                   1259:            tty->cy == tty->sy - 1 &&
                   1260:            tty->cx == tty->sx - 1)
1.1       nicm     1261:                return;
                   1262:
                   1263:        /* If this is a padding character, do nothing. */
                   1264:        if (gc->flags & GRID_FLAG_PADDING)
                   1265:                return;
                   1266:
                   1267:        /* Set the attributes. */
1.176     nicm     1268:        tty_attributes(tty, gc, wp);
1.1       nicm     1269:
1.147     nicm     1270:        /* Get the cell and if ASCII write with putc to do ACS translation. */
1.193     nicm     1271:        if (gc->data.size == 1) {
                   1272:                if (*gc->data.data < 0x20 || *gc->data.data == 0x7f)
1.1       nicm     1273:                        return;
1.193     nicm     1274:                tty_putc(tty, *gc->data.data);
1.1       nicm     1275:                return;
                   1276:        }
                   1277:
1.147     nicm     1278:        /* If not UTF-8, write _. */
1.1       nicm     1279:        if (!(tty->flags & TTY_UTF8)) {
1.193     nicm     1280:                for (i = 0; i < gc->data.width; i++)
1.1       nicm     1281:                        tty_putc(tty, '_');
                   1282:                return;
                   1283:        }
                   1284:
1.147     nicm     1285:        /* Write the data. */
1.193     nicm     1286:        tty_putn(tty, gc->data.data, gc->data.size, gc->data.width);
1.1       nicm     1287: }
                   1288:
                   1289: void
                   1290: tty_reset(struct tty *tty)
                   1291: {
                   1292:        struct grid_cell        *gc = &tty->cell;
                   1293:
1.228     nicm     1294:        if (!grid_cells_equal(gc, &grid_default_cell)) {
                   1295:                if ((gc->attr & GRID_ATTR_CHARSET) && tty_use_acs(tty))
                   1296:                        tty_putcode(tty, TTYC_RMACS);
                   1297:                tty_putcode(tty, TTYC_SGR0);
                   1298:                memcpy(gc, &grid_default_cell, sizeof *gc);
                   1299:        }
1.1       nicm     1300:
1.228     nicm     1301:        memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell);
                   1302:        tty->last_wp = -1;
1.242     nicm     1303: }
                   1304:
                   1305: static void
                   1306: tty_invalidate(struct tty *tty)
                   1307: {
                   1308:        memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
                   1309:
                   1310:        memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell);
                   1311:        tty->last_wp = -1;
                   1312:
                   1313:        tty->cx = tty->cy = UINT_MAX;
                   1314:
                   1315:        tty->rupper = tty->rleft = UINT_MAX;
                   1316:        tty->rlower = tty->rright = UINT_MAX;
                   1317:
                   1318:        if (tty->flags & TTY_STARTED) {
                   1319:                tty_putcode(tty, TTYC_SGR0);
                   1320:
                   1321:                tty->mode = ALL_MODES;
                   1322:                tty_update_mode(tty, MODE_CURSOR, NULL);
                   1323:
                   1324:                tty_cursor(tty, 0, 0);
                   1325:                tty_region_off(tty);
                   1326:                tty_margin_off(tty);
                   1327:        } else
                   1328:                tty->mode = MODE_CURSOR;
1.1       nicm     1329: }
                   1330:
1.214     nicm     1331: /* Turn off margin. */
                   1332: void
                   1333: tty_region_off(struct tty *tty)
                   1334: {
                   1335:        tty_region(tty, 0, tty->sy - 1);
                   1336: }
                   1337:
1.40      nicm     1338: /* Set region inside pane. */
1.208     nicm     1339: static void
1.196     nicm     1340: tty_region_pane(struct tty *tty, const struct tty_ctx *ctx, u_int rupper,
                   1341:     u_int rlower)
1.1       nicm     1342: {
1.113     nicm     1343:        tty_region(tty, ctx->yoff + rupper, ctx->yoff + rlower);
1.39      nicm     1344: }
                   1345:
1.40      nicm     1346: /* Set region at absolute position. */
1.214     nicm     1347: static void
1.40      nicm     1348: tty_region(struct tty *tty, u_int rupper, u_int rlower)
1.39      nicm     1349: {
                   1350:        if (tty->rlower == rlower && tty->rupper == rupper)
                   1351:                return;
1.1       nicm     1352:        if (!tty_term_has(tty->term, TTYC_CSR))
                   1353:                return;
1.39      nicm     1354:
                   1355:        tty->rupper = rupper;
                   1356:        tty->rlower = rlower;
1.55      nicm     1357:
                   1358:        /*
                   1359:         * Some terminals (such as PuTTY) do not correctly reset the cursor to
                   1360:         * 0,0 if it is beyond the last column (they do not reset their wrap
                   1361:         * flag so further output causes a line feed). As a workaround, do an
                   1362:         * explicit move to 0 first.
                   1363:         */
                   1364:        if (tty->cx >= tty->sx)
                   1365:                tty_cursor(tty, 0, tty->cy);
1.42      nicm     1366:
1.39      nicm     1367:        tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1.249     nicm     1368:        tty->cx = tty->cy = UINT_MAX;
1.212     nicm     1369: }
                   1370:
1.214     nicm     1371: /* Turn off margin. */
                   1372: void
                   1373: tty_margin_off(struct tty *tty)
                   1374: {
                   1375:        tty_margin(tty, 0, tty->sx - 1);
                   1376: }
                   1377:
1.212     nicm     1378: /* Set margin inside pane. */
                   1379: static void
                   1380: tty_margin_pane(struct tty *tty, const struct tty_ctx *ctx)
                   1381: {
                   1382:        tty_margin(tty, ctx->xoff, ctx->xoff + ctx->wp->sx - 1);
                   1383: }
                   1384:
                   1385: /* Set margin at absolute position. */
1.214     nicm     1386: static void
1.212     nicm     1387: tty_margin(struct tty *tty, u_int rleft, u_int rright)
                   1388: {
                   1389:        char s[64];
                   1390:
                   1391:        if (!tty_use_margin(tty))
                   1392:                return;
                   1393:        if (tty->rleft == rleft && tty->rright == rright)
                   1394:                return;
                   1395:
1.232     nicm     1396:        tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1.231     nicm     1397:
1.212     nicm     1398:        tty->rleft = rleft;
                   1399:        tty->rright = rright;
                   1400:
1.232     nicm     1401:        if (rleft == 0 && rright == tty->sx - 1)
                   1402:                snprintf(s, sizeof s, "\033[s");
                   1403:        else
                   1404:                snprintf(s, sizeof s, "\033[%u;%us", rleft + 1, rright + 1);
1.212     nicm     1405:        tty_puts(tty, s);
1.249     nicm     1406:        tty->cx = tty->cy = UINT_MAX;
1.253     nicm     1407: }
                   1408:
                   1409: /*
                   1410:  * Move the cursor, unless it would wrap itself when the next character is
                   1411:  * printed.
                   1412:  */
                   1413: static void
                   1414: tty_cursor_pane_unless_wrap(struct tty *tty, const struct tty_ctx *ctx,
                   1415:     u_int cx, u_int cy)
                   1416: {
                   1417:        if (!tty_pane_full_width(tty, ctx) ||
                   1418:            (tty->term->flags & TERM_EARLYWRAP) ||
                   1419:            ctx->xoff + cx != 0 ||
                   1420:            ctx->yoff + cy != tty->cy + 1 ||
1.254     nicm     1421:            tty->cx < tty->sx ||
                   1422:            tty->cy == tty->rlower)
1.253     nicm     1423:                tty_cursor_pane(tty, ctx, cx, cy);
                   1424:        else
                   1425:                log_debug("%s: will wrap at %u,%u", __func__, tty->cx, tty->cy);
1.1       nicm     1426: }
                   1427:
1.42      nicm     1428: /* Move cursor inside pane. */
1.208     nicm     1429: static void
1.41      nicm     1430: tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
                   1431: {
1.113     nicm     1432:        tty_cursor(tty, ctx->xoff + cx, ctx->yoff + cy);
1.41      nicm     1433: }
                   1434:
1.42      nicm     1435: /* Move cursor to absolute position. */
1.41      nicm     1436: void
                   1437: tty_cursor(struct tty *tty, u_int cx, u_int cy)
1.1       nicm     1438: {
1.42      nicm     1439:        struct tty_term *term = tty->term;
                   1440:        u_int            thisx, thisy;
                   1441:        int              change;
1.77      nicm     1442:
1.42      nicm     1443:        if (cx > tty->sx - 1)
                   1444:                cx = tty->sx - 1;
                   1445:
                   1446:        thisx = tty->cx;
                   1447:        thisy = tty->cy;
                   1448:
                   1449:        /* No change. */
                   1450:        if (cx == thisx && cy == thisy)
                   1451:                return;
                   1452:
1.43      nicm     1453:        /* Very end of the line, just use absolute movement. */
                   1454:        if (thisx > tty->sx - 1)
                   1455:                goto absolute;
                   1456:
1.42      nicm     1457:        /* Move to home position (0, 0). */
                   1458:        if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
                   1459:                tty_putcode(tty, TTYC_HOME);
                   1460:                goto out;
                   1461:        }
                   1462:
                   1463:        /* Zero on the next line. */
1.48      nicm     1464:        if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower) {
1.1       nicm     1465:                tty_putc(tty, '\r');
1.42      nicm     1466:                tty_putc(tty, '\n');
                   1467:                goto out;
                   1468:        }
                   1469:
1.45      nicm     1470:        /* Moving column or row. */
1.42      nicm     1471:        if (cy == thisy) {
1.45      nicm     1472:                /*
                   1473:                 * Moving column only, row staying the same.
                   1474:                 */
                   1475:
1.42      nicm     1476:                /* To left edge. */
1.202     nicm     1477:                if (cx == 0) {
1.42      nicm     1478:                        tty_putc(tty, '\r');
                   1479:                        goto out;
                   1480:                }
                   1481:
                   1482:                /* One to the left. */
                   1483:                if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) {
                   1484:                        tty_putcode(tty, TTYC_CUB1);
                   1485:                        goto out;
                   1486:                }
                   1487:
                   1488:                /* One to the right. */
                   1489:                if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) {
                   1490:                        tty_putcode(tty, TTYC_CUF1);
                   1491:                        goto out;
                   1492:                }
                   1493:
                   1494:                /* Calculate difference. */
                   1495:                change = thisx - cx;    /* +ve left, -ve right */
                   1496:
                   1497:                /*
                   1498:                 * Use HPA if change is larger than absolute, otherwise move
                   1499:                 * the cursor with CUB/CUF.
                   1500:                 */
1.87      nicm     1501:                if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) {
1.42      nicm     1502:                        tty_putcode1(tty, TTYC_HPA, cx);
                   1503:                        goto out;
                   1504:                } else if (change > 0 && tty_term_has(term, TTYC_CUB)) {
1.202     nicm     1505:                        if (change == 2 && tty_term_has(term, TTYC_CUB1)) {
                   1506:                                tty_putcode(tty, TTYC_CUB1);
                   1507:                                tty_putcode(tty, TTYC_CUB1);
                   1508:                                goto out;
                   1509:                        }
1.42      nicm     1510:                        tty_putcode1(tty, TTYC_CUB, change);
                   1511:                        goto out;
                   1512:                } else if (change < 0 && tty_term_has(term, TTYC_CUF)) {
                   1513:                        tty_putcode1(tty, TTYC_CUF, -change);
                   1514:                        goto out;
                   1515:                }
1.45      nicm     1516:        } else if (cx == thisx) {
                   1517:                /*
                   1518:                 * Moving row only, column staying the same.
                   1519:                 */
1.42      nicm     1520:
                   1521:                /* One above. */
1.77      nicm     1522:                if (thisy != tty->rupper &&
1.42      nicm     1523:                    cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) {
                   1524:                        tty_putcode(tty, TTYC_CUU1);
                   1525:                        goto out;
                   1526:                }
                   1527:
                   1528:                /* One below. */
1.49      nicm     1529:                if (thisy != tty->rlower &&
1.42      nicm     1530:                    cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) {
                   1531:                        tty_putcode(tty, TTYC_CUD1);
                   1532:                        goto out;
                   1533:                }
                   1534:
                   1535:                /* Calculate difference. */
                   1536:                change = thisy - cy;    /* +ve up, -ve down */
                   1537:
                   1538:                /*
1.77      nicm     1539:                 * Try to use VPA if change is larger than absolute or if this
                   1540:                 * change would cross the scroll region, otherwise use CUU/CUD.
1.42      nicm     1541:                 */
1.87      nicm     1542:                if ((u_int) abs(change) > cy ||
1.42      nicm     1543:                    (change < 0 && cy - change > tty->rlower) ||
1.44      nicm     1544:                    (change > 0 && cy - change < tty->rupper)) {
                   1545:                            if (tty_term_has(term, TTYC_VPA)) {
                   1546:                                    tty_putcode1(tty, TTYC_VPA, cy);
                   1547:                                    goto out;
                   1548:                            }
1.42      nicm     1549:                } else if (change > 0 && tty_term_has(term, TTYC_CUU)) {
                   1550:                        tty_putcode1(tty, TTYC_CUU, change);
                   1551:                        goto out;
                   1552:                } else if (change < 0 && tty_term_has(term, TTYC_CUD)) {
                   1553:                        tty_putcode1(tty, TTYC_CUD, -change);
                   1554:                        goto out;
                   1555:                }
                   1556:        }
                   1557:
1.43      nicm     1558: absolute:
1.42      nicm     1559:        /* Absolute movement. */
                   1560:        tty_putcode2(tty, TTYC_CUP, cy, cx);
                   1561:
                   1562: out:
                   1563:        tty->cx = cx;
                   1564:        tty->cy = cy;
1.1       nicm     1565: }
                   1566:
                   1567: void
1.176     nicm     1568: tty_attributes(struct tty *tty, const struct grid_cell *gc,
                   1569:     const struct window_pane *wp)
1.1       nicm     1570: {
1.63      nicm     1571:        struct grid_cell        *tc = &tty->cell, gc2;
1.255     nicm     1572:        int                      changed;
1.61      nicm     1573:
1.228     nicm     1574:        /* Ignore cell if it is the same as the last one. */
                   1575:        if (wp != NULL &&
                   1576:            (int)wp->id == tty->last_wp &&
                   1577:            ~(wp->window->flags & WINDOW_STYLECHANGED) &&
                   1578:            gc->attr == tty->last_cell.attr &&
                   1579:            gc->fg == tty->last_cell.fg &&
                   1580:            gc->bg == tty->last_cell.bg)
                   1581:                return;
                   1582:        tty->last_wp = (wp != NULL ? (int)wp->id : -1);
                   1583:        memcpy(&tty->last_cell, gc, sizeof tty->last_cell);
                   1584:
                   1585:        /* Copy cell and update default colours. */
1.85      nicm     1586:        memcpy(&gc2, gc, sizeof gc2);
1.203     nicm     1587:        if (wp != NULL)
                   1588:                tty_default_colours(&gc2, wp);
1.63      nicm     1589:
1.18      nicm     1590:        /*
                   1591:         * If no setab, try to use the reverse attribute as a best-effort for a
                   1592:         * non-default background. This is a bit of a hack but it doesn't do
                   1593:         * any serious harm and makes a couple of applications happier.
                   1594:         */
                   1595:        if (!tty_term_has(tty->term, TTYC_SETAB)) {
1.85      nicm     1596:                if (gc2.attr & GRID_ATTR_REVERSE) {
                   1597:                        if (gc2.fg != 7 && gc2.fg != 8)
1.64      nicm     1598:                                gc2.attr &= ~GRID_ATTR_REVERSE;
1.18      nicm     1599:                } else {
1.85      nicm     1600:                        if (gc2.bg != 0 && gc2.bg != 8)
1.64      nicm     1601:                                gc2.attr |= GRID_ATTR_REVERSE;
1.18      nicm     1602:                }
                   1603:        }
1.1       nicm     1604:
1.85      nicm     1605:        /* Fix up the colours if necessary. */
1.219     nicm     1606:        tty_check_fg(tty, wp, &gc2);
                   1607:        tty_check_bg(tty, wp, &gc2);
1.85      nicm     1608:
1.64      nicm     1609:        /* If any bits are being cleared, reset everything. */
1.85      nicm     1610:        if (tc->attr & ~gc2.attr)
1.64      nicm     1611:                tty_reset(tty);
                   1612:
                   1613:        /*
                   1614:         * Set the colours. This may call tty_reset() (so it comes next) and
                   1615:         * may add to (NOT remove) the desired attributes by changing new_attr.
                   1616:         */
1.85      nicm     1617:        tty_colours(tty, &gc2);
1.64      nicm     1618:
1.1       nicm     1619:        /* Filter out attribute bits already set. */
1.85      nicm     1620:        changed = gc2.attr & ~tc->attr;
                   1621:        tc->attr = gc2.attr;
1.1       nicm     1622:
                   1623:        /* Set the attributes. */
                   1624:        if (changed & GRID_ATTR_BRIGHT)
                   1625:                tty_putcode(tty, TTYC_BOLD);
                   1626:        if (changed & GRID_ATTR_DIM)
                   1627:                tty_putcode(tty, TTYC_DIM);
1.180     nicm     1628:        if (changed & GRID_ATTR_ITALICS)
                   1629:                tty_set_italics(tty);
1.1       nicm     1630:        if (changed & GRID_ATTR_UNDERSCORE)
                   1631:                tty_putcode(tty, TTYC_SMUL);
                   1632:        if (changed & GRID_ATTR_BLINK)
                   1633:                tty_putcode(tty, TTYC_BLINK);
                   1634:        if (changed & GRID_ATTR_REVERSE) {
                   1635:                if (tty_term_has(tty->term, TTYC_REV))
                   1636:                        tty_putcode(tty, TTYC_REV);
                   1637:                else if (tty_term_has(tty->term, TTYC_SMSO))
                   1638:                        tty_putcode(tty, TTYC_SMSO);
                   1639:        }
                   1640:        if (changed & GRID_ATTR_HIDDEN)
                   1641:                tty_putcode(tty, TTYC_INVIS);
1.255     nicm     1642:        if (changed & GRID_ATTR_STRIKETHROUGH)
                   1643:                tty_putcode(tty, TTYC_SMXX);
1.90      nicm     1644:        if ((changed & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1.1       nicm     1645:                tty_putcode(tty, TTYC_SMACS);
                   1646: }
                   1647:
1.207     nicm     1648: static void
1.85      nicm     1649: tty_colours(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1650: {
1.61      nicm     1651:        struct grid_cell        *tc = &tty->cell;
1.204     nicm     1652:        int                      have_ax;
1.61      nicm     1653:
                   1654:        /* No changes? Nothing is necessary. */
1.204     nicm     1655:        if (gc->fg == tc->fg && gc->bg == tc->bg)
1.63      nicm     1656:                return;
1.1       nicm     1657:
1.61      nicm     1658:        /*
                   1659:         * Is either the default colour? This is handled specially because the
                   1660:         * best solution might be to reset both colours to default, in which
                   1661:         * case if only one is default need to fall onward to set the other
                   1662:         * colour.
                   1663:         */
1.204     nicm     1664:        if (gc->fg == 8 || gc->bg == 8) {
1.61      nicm     1665:                /*
                   1666:                 * If don't have AX but do have op, send sgr0 (op can't
                   1667:                 * actually be used because it is sometimes the same as sgr0
                   1668:                 * and sometimes isn't). This resets both colours to default.
                   1669:                 *
                   1670:                 * Otherwise, try to set the default colour only as needed.
                   1671:                 */
1.174     nicm     1672:                have_ax = tty_term_flag(tty->term, TTYC_AX);
1.61      nicm     1673:                if (!have_ax && tty_term_has(tty->term, TTYC_OP))
                   1674:                        tty_reset(tty);
                   1675:                else {
1.204     nicm     1676:                        if (gc->fg == 8 && tc->fg != 8) {
1.61      nicm     1677:                                if (have_ax)
                   1678:                                        tty_puts(tty, "\033[39m");
1.204     nicm     1679:                                else if (tc->fg != 7)
1.61      nicm     1680:                                        tty_putcode1(tty, TTYC_SETAF, 7);
                   1681:                                tc->fg = 8;
                   1682:                        }
1.204     nicm     1683:                        if (gc->bg == 8 && tc->bg != 8) {
1.77      nicm     1684:                                if (have_ax)
1.61      nicm     1685:                                        tty_puts(tty, "\033[49m");
1.204     nicm     1686:                                else if (tc->bg != 0)
1.61      nicm     1687:                                        tty_putcode1(tty, TTYC_SETAB, 0);
                   1688:                                tc->bg = 8;
                   1689:                        }
                   1690:                }
                   1691:        }
1.1       nicm     1692:
1.61      nicm     1693:        /* Set the foreground colour. */
1.204     nicm     1694:        if (gc->fg != 8 && gc->fg != tc->fg)
1.85      nicm     1695:                tty_colours_fg(tty, gc);
1.1       nicm     1696:
1.61      nicm     1697:        /*
                   1698:         * Set the background colour. This must come after the foreground as
                   1699:         * tty_colour_fg() can call tty_reset().
                   1700:         */
1.204     nicm     1701:        if (gc->bg != 8 && gc->bg != tc->bg)
1.73      nicm     1702:                tty_colours_bg(tty, gc);
1.1       nicm     1703: }
                   1704:
1.219     nicm     1705: static void
                   1706: tty_check_fg(struct tty *tty, const struct window_pane *wp,
                   1707:     struct grid_cell *gc)
1.85      nicm     1708: {
1.204     nicm     1709:        u_char  r, g, b;
                   1710:        u_int   colours;
1.223     nicm     1711:        int     c;
1.85      nicm     1712:
1.219     nicm     1713:        /* Perform substitution if this pane has a palette */
                   1714:        if ((~gc->flags & GRID_FLAG_NOPALETTE) &&
1.223     nicm     1715:            (c = window_pane_get_palette(wp, gc->fg)) != -1)
                   1716:                gc->fg = c;
1.219     nicm     1717:
1.199     nicm     1718:        /* Is this a 24-bit colour? */
1.204     nicm     1719:        if (gc->fg & COLOUR_FLAG_RGB) {
1.199     nicm     1720:                /* Not a 24-bit terminal? Translate to 256-colour palette. */
                   1721:                if (!tty_term_flag(tty->term, TTYC_TC)) {
1.204     nicm     1722:                        colour_split_rgb(gc->fg, &r, &g, &b);
                   1723:                        gc->fg = colour_find_rgb(r, g, b);
                   1724:                } else
1.200     nicm     1725:                        return;
1.199     nicm     1726:        }
1.224     nicm     1727:
                   1728:        /* How many colours does this terminal have? */
                   1729:        if ((tty->term->flags|tty->term_flags) & TERM_256COLOURS)
                   1730:                colours = 256;
                   1731:        else
                   1732:                colours = tty_term_number(tty->term, TTYC_COLORS);
1.175     nicm     1733:
1.85      nicm     1734:        /* Is this a 256-colour colour? */
1.204     nicm     1735:        if (gc->fg & COLOUR_FLAG_256) {
1.85      nicm     1736:                /* And not a 256 colour mode? */
1.224     nicm     1737:                if (colours != 256) {
1.85      nicm     1738:                        gc->fg = colour_256to16(gc->fg);
                   1739:                        if (gc->fg & 8) {
                   1740:                                gc->fg &= 7;
1.175     nicm     1741:                                if (colours >= 16)
                   1742:                                        gc->fg += 90;
                   1743:                                else
                   1744:                                        gc->attr |= GRID_ATTR_BRIGHT;
1.85      nicm     1745:                        } else
                   1746:                                gc->attr &= ~GRID_ATTR_BRIGHT;
                   1747:                }
                   1748:                return;
                   1749:        }
                   1750:
                   1751:        /* Is this an aixterm colour? */
                   1752:        if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) {
                   1753:                gc->fg -= 90;
                   1754:                gc->attr |= GRID_ATTR_BRIGHT;
                   1755:        }
                   1756: }
                   1757:
1.219     nicm     1758: static void
                   1759: tty_check_bg(struct tty *tty, const struct window_pane *wp,
                   1760:     struct grid_cell *gc)
1.85      nicm     1761: {
1.204     nicm     1762:        u_char  r, g, b;
                   1763:        u_int   colours;
1.223     nicm     1764:        int     c;
1.85      nicm     1765:
1.219     nicm     1766:        /* Perform substitution if this pane has a palette */
                   1767:        if ((~gc->flags & GRID_FLAG_NOPALETTE) &&
1.223     nicm     1768:            (c = window_pane_get_palette(wp, gc->bg)) != -1)
                   1769:                gc->bg = c;
1.219     nicm     1770:
1.199     nicm     1771:        /* Is this a 24-bit colour? */
1.204     nicm     1772:        if (gc->bg & COLOUR_FLAG_RGB) {
1.199     nicm     1773:                /* Not a 24-bit terminal? Translate to 256-colour palette. */
                   1774:                if (!tty_term_flag(tty->term, TTYC_TC)) {
1.204     nicm     1775:                        colour_split_rgb(gc->bg, &r, &g, &b);
                   1776:                        gc->bg = colour_find_rgb(r, g, b);
                   1777:                } else
1.200     nicm     1778:                        return;
1.199     nicm     1779:        }
1.224     nicm     1780:
                   1781:        /* How many colours does this terminal have? */
                   1782:        if ((tty->term->flags|tty->term_flags) & TERM_256COLOURS)
                   1783:                colours = 256;
                   1784:        else
                   1785:                colours = tty_term_number(tty->term, TTYC_COLORS);
1.175     nicm     1786:
1.85      nicm     1787:        /* Is this a 256-colour colour? */
1.204     nicm     1788:        if (gc->bg & COLOUR_FLAG_256) {
1.85      nicm     1789:                /*
                   1790:                 * And not a 256 colour mode? Translate to 16-colour
                   1791:                 * palette. Bold background doesn't exist portably, so just
                   1792:                 * discard the bold bit if set.
                   1793:                 */
1.224     nicm     1794:                if (colours != 256) {
1.85      nicm     1795:                        gc->bg = colour_256to16(gc->bg);
1.175     nicm     1796:                        if (gc->bg & 8) {
1.85      nicm     1797:                                gc->bg &= 7;
1.175     nicm     1798:                                if (colours >= 16)
                   1799:                                        gc->fg += 90;
                   1800:                        }
1.85      nicm     1801:                }
                   1802:                return;
                   1803:        }
                   1804:
                   1805:        /* Is this an aixterm colour? */
1.175     nicm     1806:        if (gc->bg >= 90 && gc->bg <= 97 && colours < 16)
1.85      nicm     1807:                gc->bg -= 90;
                   1808: }
                   1809:
1.207     nicm     1810: static void
1.85      nicm     1811: tty_colours_fg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1812: {
1.61      nicm     1813:        struct grid_cell        *tc = &tty->cell;
1.79      nicm     1814:        char                     s[32];
1.1       nicm     1815:
1.204     nicm     1816:        /* Is this a 24-bit or 256-colour colour? */
                   1817:        if (gc->fg & COLOUR_FLAG_RGB ||
                   1818:            gc->fg & COLOUR_FLAG_256) {
                   1819:                if (tty_try_colour(tty, gc->fg, "38") == 0)
1.61      nicm     1820:                        goto save_fg;
1.199     nicm     1821:                /* Should not get here, already converted in tty_check_fg. */
1.85      nicm     1822:                return;
1.1       nicm     1823:        }
                   1824:
1.79      nicm     1825:        /* Is this an aixterm bright colour? */
1.204     nicm     1826:        if (gc->fg >= 90 && gc->fg <= 97) {
                   1827:                xsnprintf(s, sizeof s, "\033[%dm", gc->fg);
1.85      nicm     1828:                tty_puts(tty, s);
                   1829:                goto save_fg;
1.79      nicm     1830:        }
                   1831:
1.61      nicm     1832:        /* Otherwise set the foreground colour. */
1.204     nicm     1833:        tty_putcode1(tty, TTYC_SETAF, gc->fg);
1.61      nicm     1834:
1.77      nicm     1835: save_fg:
1.61      nicm     1836:        /* Save the new values in the terminal current cell. */
1.204     nicm     1837:        tc->fg = gc->fg;
1.1       nicm     1838: }
                   1839:
1.207     nicm     1840: static void
1.73      nicm     1841: tty_colours_bg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1842: {
1.61      nicm     1843:        struct grid_cell        *tc = &tty->cell;
1.79      nicm     1844:        char                     s[32];
1.1       nicm     1845:
1.204     nicm     1846:        /* Is this a 24-bit or 256-colour colour? */
                   1847:        if (gc->bg & COLOUR_FLAG_RGB ||
                   1848:            gc->bg & COLOUR_FLAG_256) {
                   1849:                if (tty_try_colour(tty, gc->bg, "48") == 0)
1.61      nicm     1850:                        goto save_bg;
1.199     nicm     1851:                /* Should not get here, already converted in tty_check_bg. */
1.85      nicm     1852:                return;
1.79      nicm     1853:        }
                   1854:
                   1855:        /* Is this an aixterm bright colour? */
1.204     nicm     1856:        if (gc->bg >= 90 && gc->bg <= 97) {
                   1857:                xsnprintf(s, sizeof s, "\033[%dm", gc->bg + 10);
1.175     nicm     1858:                tty_puts(tty, s);
                   1859:                goto save_bg;
1.1       nicm     1860:        }
                   1861:
1.61      nicm     1862:        /* Otherwise set the background colour. */
1.204     nicm     1863:        tty_putcode1(tty, TTYC_SETAB, gc->bg);
1.61      nicm     1864:
                   1865: save_bg:
                   1866:        /* Save the new values in the terminal current cell. */
1.204     nicm     1867:        tc->bg = gc->bg;
1.61      nicm     1868: }
                   1869:
1.207     nicm     1870: static int
1.204     nicm     1871: tty_try_colour(struct tty *tty, int colour, const char *type)
1.61      nicm     1872: {
1.204     nicm     1873:        u_char  r, g, b;
1.61      nicm     1874:        char    s[32];
                   1875:
1.204     nicm     1876:        if (colour & COLOUR_FLAG_256) {
                   1877:                /*
                   1878:                 * If the user has specified -2 to the client, setaf and setab
                   1879:                 * may not work (or they may not want to use them), so send the
                   1880:                 * usual sequence.
                   1881:                 */
                   1882:                if (tty->term_flags & TERM_256COLOURS)
                   1883:                        goto fallback_256;
1.189     nicm     1884:
1.204     nicm     1885:                /*
                   1886:                 * If the terminfo entry has 256 colours and setaf and setab
                   1887:                 * exist, assume that they work correctly.
                   1888:                 */
                   1889:                if (tty->term->flags & TERM_256COLOURS) {
                   1890:                        if (*type == '3') {
                   1891:                                if (!tty_term_has(tty->term, TTYC_SETAF))
                   1892:                                        goto fallback_256;
                   1893:                                tty_putcode1(tty, TTYC_SETAF, colour & 0xff);
                   1894:                        } else {
                   1895:                                if (!tty_term_has(tty->term, TTYC_SETAB))
                   1896:                                        goto fallback_256;
                   1897:                                tty_putcode1(tty, TTYC_SETAB, colour & 0xff);
                   1898:                        }
                   1899:                        return (0);
1.188     nicm     1900:                }
1.204     nicm     1901:                goto fallback_256;
                   1902:        }
                   1903:
                   1904:        if (colour & COLOUR_FLAG_RGB) {
                   1905:                if (!tty_term_flag(tty->term, TTYC_TC))
                   1906:                        return (-1);
                   1907:
                   1908:                colour_split_rgb(colour & 0xffffff, &r, &g, &b);
                   1909:                xsnprintf(s, sizeof s, "\033[%s;2;%hhu;%hhu;%hhum", type,
                   1910:                    r, g, b);
                   1911:                tty_puts(tty, s);
1.165     nicm     1912:                return (0);
                   1913:        }
1.61      nicm     1914:
1.165     nicm     1915:        return (-1);
1.188     nicm     1916:
1.204     nicm     1917: fallback_256:
                   1918:        xsnprintf(s, sizeof s, "\033[%s;5;%dm", type, colour & 0xff);
1.188     nicm     1919:        tty_puts(tty, s);
                   1920:        return (0);
1.176     nicm     1921: }
                   1922:
1.207     nicm     1923: static void
1.176     nicm     1924: tty_default_colours(struct grid_cell *gc, const struct window_pane *wp)
                   1925: {
1.203     nicm     1926:        struct window           *w = wp->window;
                   1927:        struct options          *oo = w->options;
                   1928:        const struct grid_cell  *agc, *pgc, *wgc;
1.223     nicm     1929:        int                      c;
1.203     nicm     1930:
                   1931:        if (w->flags & WINDOW_STYLECHANGED) {
                   1932:                w->flags &= ~WINDOW_STYLECHANGED;
                   1933:                agc = options_get_style(oo, "window-active-style");
                   1934:                memcpy(&w->active_style, agc, sizeof w->active_style);
                   1935:                wgc = options_get_style(oo, "window-style");
                   1936:                memcpy(&w->style, wgc, sizeof w->style);
                   1937:        } else {
                   1938:                agc = &w->active_style;
                   1939:                wgc = &w->style;
                   1940:        }
1.176     nicm     1941:        pgc = &wp->colgc;
                   1942:
1.204     nicm     1943:        if (gc->fg == 8) {
                   1944:                if (pgc->fg != 8)
1.176     nicm     1945:                        gc->fg = pgc->fg;
1.204     nicm     1946:                else if (wp == w->active && agc->fg != 8)
1.176     nicm     1947:                        gc->fg = agc->fg;
1.204     nicm     1948:                else
1.176     nicm     1949:                        gc->fg = wgc->fg;
1.219     nicm     1950:
1.223     nicm     1951:                if (gc->fg != 8 &&
                   1952:                    (c = window_pane_get_palette(wp, gc->fg)) != -1)
                   1953:                        gc->fg = c;
1.176     nicm     1954:        }
                   1955:
1.204     nicm     1956:        if (gc->bg == 8) {
                   1957:                if (pgc->bg != 8)
1.176     nicm     1958:                        gc->bg = pgc->bg;
1.204     nicm     1959:                else if (wp == w->active && agc->bg != 8)
1.176     nicm     1960:                        gc->bg = agc->bg;
1.204     nicm     1961:                else
1.176     nicm     1962:                        gc->bg = wgc->bg;
1.219     nicm     1963:
1.223     nicm     1964:                if (gc->bg != 8 &&
                   1965:                    (c = window_pane_get_palette(wp, gc->bg)) != -1)
                   1966:                        gc->bg = c;
1.176     nicm     1967:        }
1.210     nicm     1968: }
                   1969:
                   1970: static void
                   1971: tty_default_attributes(struct tty *tty, const struct window_pane *wp, u_int bg)
                   1972: {
                   1973:        static struct grid_cell gc;
                   1974:
                   1975:        memcpy(&gc, &grid_default_cell, sizeof gc);
                   1976:        gc.bg = bg;
                   1977:        tty_attributes(tty, &gc, wp);
1.1       nicm     1978: }