mirror of
https://github.com/tmate-io/tmate.git
synced 2024-11-09 01:35:20 +01:00
761bd3c9e3
Change the way backoff works. Instead of stopping reading from the pty when the client tty backs up too much, just stop updating the tty and only update the internal screen. Then when the tty recovers, force a redraw. This prevents a dodgy client from causing other clients to go into backoff while still allowing tmux to be responsive (locally) when seeing lots of output.
1477 lines
34 KiB
C
1477 lines
34 KiB
C
/* $Id: tty.c,v 1.193 2010-08-11 22:16:04 tcunha Exp $ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termios.h>
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#include <unistd.h>
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#include "tmux.h"
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void tty_read_callback(struct bufferevent *, void *);
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void tty_error_callback(struct bufferevent *, short, void *);
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void tty_fill_acs(struct tty *);
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int tty_try_256(struct tty *, u_char, const char *);
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int tty_try_88(struct tty *, u_char, const char *);
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void tty_colours(struct tty *, const struct grid_cell *);
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void tty_check_fg(struct tty *, struct grid_cell *);
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void tty_check_bg(struct tty *, struct grid_cell *);
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void tty_colours_fg(struct tty *, const struct grid_cell *);
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void tty_colours_bg(struct tty *, const struct grid_cell *);
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void tty_redraw_region(struct tty *, const struct tty_ctx *);
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void tty_emulate_repeat(
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struct tty *, enum tty_code_code, enum tty_code_code, u_int);
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void tty_cell(struct tty *,
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const struct grid_cell *, const struct grid_utf8 *);
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void
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tty_init(struct tty *tty, int fd, char *term)
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{
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char *path;
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memset(tty, 0, sizeof *tty);
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tty->log_fd = -1;
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if (term == NULL || *term == '\0')
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tty->termname = xstrdup("unknown");
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else
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tty->termname = xstrdup(term);
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if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
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fatal("fcntl failed");
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tty->fd = fd;
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if ((path = ttyname(fd)) == NULL)
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fatalx("ttyname failed");
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tty->path = xstrdup(path);
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tty->flags = 0;
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tty->term_flags = 0;
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}
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int
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tty_resize(struct tty *tty)
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{
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struct winsize ws;
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u_int sx, sy;
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if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
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sx = ws.ws_col;
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if (sx == 0)
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sx = 80;
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sy = ws.ws_row;
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if (sy == 0)
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sy = 24;
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} else {
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sx = 80;
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sy = 24;
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}
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if (sx == tty->sx && sy == tty->sy)
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return (0);
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tty->sx = sx;
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tty->sy = sy;
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tty->cx = UINT_MAX;
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tty->cy = UINT_MAX;
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tty->rupper = UINT_MAX;
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tty->rlower = UINT_MAX;
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/*
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* If the terminal has been started, reset the actual scroll region and
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* cursor position, as this may not have happened.
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*/
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if (tty->flags & TTY_STARTED) {
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tty_cursor(tty, 0, 0);
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tty_region(tty, 0, tty->sy - 1);
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}
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return (1);
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}
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int
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tty_open(struct tty *tty, const char *overrides, char **cause)
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{
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char out[64];
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int fd;
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if (debug_level > 3) {
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xsnprintf(out, sizeof out, "tmux-out-%ld.log", (long) getpid());
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fd = open(out, O_WRONLY|O_CREAT|O_TRUNC, 0644);
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if (fd != -1 && fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
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fatal("fcntl failed");
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tty->log_fd = fd;
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}
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tty->term = tty_term_find(tty->termname, tty->fd, overrides, cause);
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if (tty->term == NULL) {
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tty_close(tty);
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return (-1);
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}
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tty->flags |= TTY_OPENED;
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tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_ESCAPE);
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tty->event = bufferevent_new(
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tty->fd, tty_read_callback, NULL, tty_error_callback, tty);
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tty_start_tty(tty);
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tty_keys_init(tty);
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tty_fill_acs(tty);
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return (0);
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}
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/* ARGSUSED */
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void
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tty_read_callback(unused struct bufferevent *bufev, void *data)
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{
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struct tty *tty = data;
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while (tty_keys_next(tty))
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;
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}
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/* ARGSUSED */
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void
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tty_error_callback(
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unused struct bufferevent *bufev, unused short what, unused void *data)
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{
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}
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void
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tty_start_tty(struct tty *tty)
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{
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struct termios tio;
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int mode;
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if (tty->fd == -1)
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return;
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if ((mode = fcntl(tty->fd, F_GETFL)) == -1)
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fatal("fcntl failed");
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if (fcntl(tty->fd, F_SETFL, mode|O_NONBLOCK) == -1)
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fatal("fcntl failed");
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bufferevent_enable(tty->event, EV_READ|EV_WRITE);
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if (tcgetattr(tty->fd, &tty->tio) != 0)
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fatal("tcgetattr failed");
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memcpy(&tio, &tty->tio, sizeof tio);
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tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
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tio.c_iflag |= IGNBRK;
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tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
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tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
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ECHOPRT|ECHOKE|ECHOCTL|ISIG);
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tio.c_cc[VMIN] = 1;
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tio.c_cc[VTIME] = 0;
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if (tcsetattr(tty->fd, TCSANOW, &tio) != 0)
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fatal("tcsetattr failed");
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tcflush(tty->fd, TCIOFLUSH);
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tty_putcode(tty, TTYC_SMCUP);
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tty_putcode(tty, TTYC_SGR0);
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memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
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tty_putcode(tty, TTYC_RMKX);
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tty_putcode(tty, TTYC_ENACS);
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tty_putcode(tty, TTYC_CLEAR);
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tty_putcode(tty, TTYC_CNORM);
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if (tty_term_has(tty->term, TTYC_KMOUS))
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tty_puts(tty, "\033[?1000l");
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tty->cx = UINT_MAX;
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tty->cy = UINT_MAX;
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tty->rlower = UINT_MAX;
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tty->rupper = UINT_MAX;
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tty->mode = MODE_CURSOR;
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tty->flags |= TTY_STARTED;
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}
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void
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tty_stop_tty(struct tty *tty)
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{
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struct winsize ws;
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int mode;
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if (!(tty->flags & TTY_STARTED))
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return;
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tty->flags &= ~TTY_STARTED;
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bufferevent_disable(tty->event, EV_READ|EV_WRITE);
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/*
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* Be flexible about error handling and try not kill the server just
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* because the fd is invalid. Things like ssh -t can easily leave us
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* with a dead tty.
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*/
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if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
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return;
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if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
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return;
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tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
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tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
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tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
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tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
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tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
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tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
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if (tty_term_has(tty->term, TTYC_KMOUS))
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tty_raw(tty, "\033[?1000l");
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tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
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if ((mode = fcntl(tty->fd, F_GETFL)) != -1)
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fcntl(tty->fd, F_SETFL, mode & ~O_NONBLOCK);
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}
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void
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tty_fill_acs(struct tty *tty)
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{
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const char *ptr;
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memset(tty->acs, 0, sizeof tty->acs);
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if (!tty_term_has(tty->term, TTYC_ACSC))
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return;
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ptr = tty_term_string(tty->term, TTYC_ACSC);
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if (strlen(ptr) % 2 != 0)
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return;
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for (; *ptr != '\0'; ptr += 2)
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tty->acs[(u_char) ptr[0]] = ptr[1];
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}
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u_char
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tty_get_acs(struct tty *tty, u_char ch)
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{
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if (tty->acs[ch] != '\0')
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return (tty->acs[ch]);
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return (ch);
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}
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void
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tty_close(struct tty *tty)
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{
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if (tty->log_fd != -1) {
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close(tty->log_fd);
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tty->log_fd = -1;
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}
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evtimer_del(&tty->key_timer);
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tty_stop_tty(tty);
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if (tty->flags & TTY_OPENED) {
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bufferevent_free(tty->event);
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tty_term_free(tty->term);
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tty_keys_free(tty);
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tty->flags &= ~TTY_OPENED;
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}
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if (tty->fd != -1) {
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close(tty->fd);
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tty->fd = -1;
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}
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}
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void
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tty_free(struct tty *tty)
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{
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tty_close(tty);
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if (tty->path != NULL)
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xfree(tty->path);
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if (tty->termname != NULL)
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xfree(tty->termname);
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}
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void
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tty_raw(struct tty *tty, const char *s)
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{
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write(tty->fd, s, strlen(s));
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}
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void
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tty_putcode(struct tty *tty, enum tty_code_code code)
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{
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tty_puts(tty, tty_term_string(tty->term, code));
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}
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void
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tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
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{
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if (a < 0)
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return;
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tty_puts(tty, tty_term_string1(tty->term, code, a));
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}
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void
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tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
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{
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if (a < 0 || b < 0)
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return;
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tty_puts(tty, tty_term_string2(tty->term, code, a, b));
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}
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void
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tty_puts(struct tty *tty, const char *s)
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{
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if (*s == '\0')
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return;
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bufferevent_write(tty->event, s, strlen(s));
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if (tty->log_fd != -1)
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write(tty->log_fd, s, strlen(s));
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}
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void
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tty_putc(struct tty *tty, u_char ch)
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{
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u_int sx;
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if (tty->cell.attr & GRID_ATTR_CHARSET)
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ch = tty_get_acs(tty, ch);
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bufferevent_write(tty->event, &ch, 1);
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if (ch >= 0x20 && ch != 0x7f) {
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sx = tty->sx;
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if (tty->term->flags & TERM_EARLYWRAP)
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sx--;
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if (tty->cx >= sx) {
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tty->cx = 1;
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if (tty->cy != tty->rlower)
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tty->cy++;
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} else
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tty->cx++;
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}
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if (tty->log_fd != -1)
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write(tty->log_fd, &ch, 1);
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}
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void
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tty_pututf8(struct tty *tty, const struct grid_utf8 *gu)
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{
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size_t size;
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size = grid_utf8_size(gu);
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bufferevent_write(tty->event, gu->data, size);
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if (tty->log_fd != -1)
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write(tty->log_fd, gu->data, size);
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tty->cx += gu->width;
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}
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void
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tty_set_title(struct tty *tty, const char *title)
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{
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if (strstr(tty->termname, "xterm") == NULL &&
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strstr(tty->termname, "rxvt") == NULL &&
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strcmp(tty->termname, "screen") != 0)
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return;
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tty_puts(tty, "\033]0;");
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tty_puts(tty, title);
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tty_putc(tty, '\007');
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}
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void
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tty_update_mode(struct tty *tty, int mode)
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{
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int changed;
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if (tty->flags & TTY_NOCURSOR)
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mode &= ~MODE_CURSOR;
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changed = mode ^ tty->mode;
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if (changed & MODE_CURSOR) {
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if (mode & MODE_CURSOR)
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tty_putcode(tty, TTYC_CNORM);
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else
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tty_putcode(tty, TTYC_CIVIS);
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}
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if (changed & (MODE_MOUSE|MODE_MOUSEMOTION)) {
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if (mode & MODE_MOUSE) {
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if (mode & MODE_MOUSEMOTION)
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tty_puts(tty, "\033[?1003h");
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else
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tty_puts(tty, "\033[?1000h");
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} else {
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if (mode & MODE_MOUSEMOTION)
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tty_puts(tty, "\033[?1003l");
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else
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tty_puts(tty, "\033[?1000l");
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}
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}
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if (changed & MODE_KKEYPAD) {
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if (mode & MODE_KKEYPAD)
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tty_putcode(tty, TTYC_SMKX);
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else
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tty_putcode(tty, TTYC_RMKX);
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}
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tty->mode = mode;
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}
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void
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tty_emulate_repeat(
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struct tty *tty, enum tty_code_code code, enum tty_code_code code1, u_int n)
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{
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if (tty_term_has(tty->term, code))
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tty_putcode1(tty, code, n);
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else {
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while (n-- > 0)
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tty_putcode(tty, code1);
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}
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}
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/*
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* Redraw scroll region using data from screen (already updated). Used when
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* CSR not supported, or window is a pane that doesn't take up the full
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* width of the terminal.
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*/
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void
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tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
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{
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struct window_pane *wp = ctx->wp;
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struct screen *s = wp->screen;
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u_int i;
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/*
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* If region is >= 50% of the screen, just schedule a window redraw. In
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* most cases, this is likely to be followed by some more scrolling -
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* without this, the entire pane ends up being redrawn many times which
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* can be much more data.
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*/
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if (ctx->orupper - ctx->orlower >= screen_size_y(s) / 2) {
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wp->flags |= PANE_REDRAW;
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return;
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}
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if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
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for (i = ctx->ocy; i < screen_size_y(s); i++)
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tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
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} else {
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for (i = ctx->orupper; i <= ctx->orlower; i++)
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tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
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}
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}
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void
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tty_draw_line(struct tty *tty, struct screen *s, u_int py, u_int ox, u_int oy)
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{
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const struct grid_cell *gc;
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struct grid_line *gl;
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struct grid_cell tmpgc;
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const struct grid_utf8 *gu;
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u_int i, sx;
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tty_update_mode(tty, tty->mode & ~MODE_CURSOR);
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sx = screen_size_x(s);
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if (sx > s->grid->linedata[s->grid->hsize + py].cellsize)
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sx = s->grid->linedata[s->grid->hsize + py].cellsize;
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if (sx > tty->sx)
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sx = tty->sx;
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/*
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* Don't move the cursor to the start permission if it will wrap there
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* itself.
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*/
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gl = NULL;
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if (py != 0)
|
|
gl = &s->grid->linedata[s->grid->hsize + py - 1];
|
|
if (oy + py == 0 || gl == NULL || !(gl->flags & GRID_LINE_WRAPPED) ||
|
|
tty->cx < tty->sx || ox != 0 ||
|
|
(oy + py != tty->cy + 1 && tty->cy != s->rlower + oy))
|
|
tty_cursor(tty, ox, oy + py);
|
|
|
|
for (i = 0; i < sx; i++) {
|
|
gc = grid_view_peek_cell(s->grid, i, py);
|
|
|
|
gu = NULL;
|
|
if (gc->flags & GRID_FLAG_UTF8)
|
|
gu = grid_view_peek_utf8(s->grid, i, py);
|
|
|
|
if (screen_check_selection(s, i, py)) {
|
|
memcpy(&tmpgc, &s->sel.cell, sizeof tmpgc);
|
|
tmpgc.data = gc->data;
|
|
tmpgc.flags = gc->flags &
|
|
~(GRID_FLAG_FG256|GRID_FLAG_BG256);
|
|
tmpgc.flags |= s->sel.cell.flags &
|
|
(GRID_FLAG_FG256|GRID_FLAG_BG256);
|
|
tty_cell(tty, &tmpgc, gu);
|
|
} else
|
|
tty_cell(tty, gc, gu);
|
|
}
|
|
|
|
if (sx >= tty->sx) {
|
|
tty_update_mode(tty, tty->mode);
|
|
return;
|
|
}
|
|
tty_reset(tty);
|
|
|
|
tty_cursor(tty, ox + sx, oy + py);
|
|
if (screen_size_x(s) >= tty->sx && tty_term_has(tty->term, TTYC_EL))
|
|
tty_putcode(tty, TTYC_EL);
|
|
else {
|
|
for (i = sx; i < screen_size_x(s); i++)
|
|
tty_putc(tty, ' ');
|
|
}
|
|
tty_update_mode(tty, tty->mode);
|
|
}
|
|
|
|
void
|
|
tty_write(void (*cmdfn)(
|
|
struct tty *, const struct tty_ctx *), const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct client *c;
|
|
u_int i;
|
|
|
|
/* wp can be NULL if updating the screen but not the terminal. */
|
|
if (wp == NULL)
|
|
return;
|
|
|
|
if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
|
|
return;
|
|
if (wp->window->flags & WINDOW_HIDDEN || !window_pane_visible(wp))
|
|
return;
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
|
|
c = ARRAY_ITEM(&clients, i);
|
|
if (c == NULL || c->session == NULL)
|
|
continue;
|
|
if (c->flags & CLIENT_SUSPENDED)
|
|
continue;
|
|
|
|
if (c->session->curw->window == wp->window) {
|
|
if (c->tty.term == NULL)
|
|
continue;
|
|
if (c->tty.flags & (TTY_FREEZE|TTY_BACKOFF))
|
|
continue;
|
|
cmdfn(&c->tty, ctx);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct screen *s = wp->screen;
|
|
u_int i;
|
|
|
|
if (wp->xoff != 0 || screen_size_x(s) < tty->sx) {
|
|
tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
|
|
return;
|
|
}
|
|
|
|
tty_reset(tty);
|
|
|
|
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
|
|
|
|
if (tty_term_has(tty->term, TTYC_ICH) ||
|
|
tty_term_has(tty->term, TTYC_ICH1))
|
|
tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
|
|
else if (tty_term_has(tty->term, TTYC_SMIR) &&
|
|
tty_term_has(tty->term, TTYC_RMIR)) {
|
|
tty_putcode(tty, TTYC_SMIR);
|
|
for (i = 0; i < ctx->num; i++)
|
|
tty_putc(tty, ' ');
|
|
tty_putcode(tty, TTYC_RMIR);
|
|
} else
|
|
tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
|
|
}
|
|
|
|
void
|
|
tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct screen *s = wp->screen;
|
|
|
|
if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
|
|
(!tty_term_has(tty->term, TTYC_DCH) &&
|
|
!tty_term_has(tty->term, TTYC_DCH1))) {
|
|
tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
|
|
return;
|
|
}
|
|
|
|
tty_reset(tty);
|
|
|
|
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
|
|
|
|
if (tty_term_has(tty->term, TTYC_DCH) ||
|
|
tty_term_has(tty->term, TTYC_DCH1))
|
|
tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
|
|
}
|
|
|
|
void
|
|
tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct screen *s = wp->screen;
|
|
|
|
if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
|
|
!tty_term_has(tty->term, TTYC_CSR) ||
|
|
!tty_term_has(tty->term, TTYC_IL1)) {
|
|
tty_redraw_region(tty, ctx);
|
|
return;
|
|
}
|
|
|
|
tty_reset(tty);
|
|
|
|
tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
|
|
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
|
|
|
|
tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
|
|
}
|
|
|
|
void
|
|
tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct screen *s = wp->screen;
|
|
|
|
if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
|
|
!tty_term_has(tty->term, TTYC_CSR) ||
|
|
!tty_term_has(tty->term, TTYC_DL1)) {
|
|
tty_redraw_region(tty, ctx);
|
|
return;
|
|
}
|
|
|
|
tty_reset(tty);
|
|
|
|
tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
|
|
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
|
|
|
|
tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
|
|
}
|
|
|
|
void
|
|
tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct screen *s = wp->screen;
|
|
u_int i;
|
|
|
|
tty_reset(tty);
|
|
|
|
tty_cursor_pane(tty, ctx, 0, ctx->ocy);
|
|
|
|
if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
|
|
tty_term_has(tty->term, TTYC_EL)) {
|
|
tty_putcode(tty, TTYC_EL);
|
|
} else {
|
|
for (i = 0; i < screen_size_x(s); i++)
|
|
tty_putc(tty, ' ');
|
|
}
|
|
}
|
|
|
|
void
|
|
tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct screen *s = wp->screen;
|
|
u_int i;
|
|
|
|
tty_reset(tty);
|
|
|
|
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
|
|
|
|
if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
|
|
tty_term_has(tty->term, TTYC_EL))
|
|
tty_putcode(tty, TTYC_EL);
|
|
else {
|
|
for (i = ctx->ocx; i < screen_size_x(s); i++)
|
|
tty_putc(tty, ' ');
|
|
}
|
|
}
|
|
|
|
void
|
|
tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
u_int i;
|
|
|
|
tty_reset(tty);
|
|
|
|
if (wp->xoff == 0 && tty_term_has(tty->term, TTYC_EL1)) {
|
|
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
|
|
tty_putcode(tty, TTYC_EL1);
|
|
} else {
|
|
tty_cursor_pane(tty, ctx, 0, ctx->ocy);
|
|
for (i = 0; i < ctx->ocx + 1; i++)
|
|
tty_putc(tty, ' ');
|
|
}
|
|
}
|
|
|
|
void
|
|
tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct screen *s = wp->screen;
|
|
|
|
if (ctx->ocy != ctx->orupper)
|
|
return;
|
|
|
|
if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
|
|
!tty_term_has(tty->term, TTYC_CSR) ||
|
|
!tty_term_has(tty->term, TTYC_RI)) {
|
|
tty_redraw_region(tty, ctx);
|
|
return;
|
|
}
|
|
|
|
tty_reset(tty);
|
|
|
|
tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
|
|
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
|
|
|
|
tty_putcode(tty, TTYC_RI);
|
|
}
|
|
|
|
void
|
|
tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct screen *s = wp->screen;
|
|
|
|
if (ctx->ocy != ctx->orlower)
|
|
return;
|
|
|
|
if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
|
|
!tty_term_has(tty->term, TTYC_CSR)) {
|
|
tty_redraw_region(tty, ctx);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* If this line wrapped naturally (ctx->num is nonzero), don't do
|
|
* anything - the cursor can just be moved to the last cell and wrap
|
|
* naturally.
|
|
*/
|
|
if (ctx->num && !(tty->term->flags & TERM_EARLYWRAP))
|
|
return;
|
|
|
|
tty_reset(tty);
|
|
|
|
tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
|
|
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
|
|
|
|
tty_putc(tty, '\n');
|
|
}
|
|
|
|
void
|
|
tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct screen *s = wp->screen;
|
|
u_int i, j;
|
|
|
|
tty_reset(tty);
|
|
|
|
tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
|
|
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
|
|
|
|
if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
|
|
tty_term_has(tty->term, TTYC_EL)) {
|
|
tty_putcode(tty, TTYC_EL);
|
|
if (ctx->ocy != screen_size_y(s) - 1) {
|
|
tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
|
|
for (i = ctx->ocy + 1; i < screen_size_y(s); i++) {
|
|
tty_putcode(tty, TTYC_EL);
|
|
if (i == screen_size_y(s) - 1)
|
|
continue;
|
|
tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
|
|
tty->cy++;
|
|
}
|
|
}
|
|
} else {
|
|
for (i = ctx->ocx; i < screen_size_x(s); i++)
|
|
tty_putc(tty, ' ');
|
|
for (j = ctx->ocy + 1; j < screen_size_y(s); j++) {
|
|
tty_cursor_pane(tty, ctx, 0, j);
|
|
for (i = 0; i < screen_size_x(s); i++)
|
|
tty_putc(tty, ' ');
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct screen *s = wp->screen;
|
|
u_int i, j;
|
|
|
|
tty_reset(tty);
|
|
|
|
tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
|
|
tty_cursor_pane(tty, ctx, 0, 0);
|
|
|
|
if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
|
|
tty_term_has(tty->term, TTYC_EL)) {
|
|
for (i = 0; i < ctx->ocy; i++) {
|
|
tty_putcode(tty, TTYC_EL);
|
|
tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
|
|
tty->cy++;
|
|
}
|
|
} else {
|
|
for (j = 0; j < ctx->ocy; j++) {
|
|
tty_cursor_pane(tty, ctx, 0, j);
|
|
for (i = 0; i < screen_size_x(s); i++)
|
|
tty_putc(tty, ' ');
|
|
}
|
|
}
|
|
for (i = 0; i <= ctx->ocx; i++)
|
|
tty_putc(tty, ' ');
|
|
}
|
|
|
|
void
|
|
tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct screen *s = wp->screen;
|
|
u_int i, j;
|
|
|
|
tty_reset(tty);
|
|
|
|
tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
|
|
tty_cursor_pane(tty, ctx, 0, 0);
|
|
|
|
if (wp->xoff == 0 && screen_size_x(s) >= tty->sx &&
|
|
tty_term_has(tty->term, TTYC_EL)) {
|
|
for (i = 0; i < screen_size_y(s); i++) {
|
|
tty_putcode(tty, TTYC_EL);
|
|
if (i != screen_size_y(s) - 1) {
|
|
tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
|
|
tty->cy++;
|
|
}
|
|
}
|
|
} else {
|
|
for (j = 0; j < screen_size_y(s); j++) {
|
|
tty_cursor_pane(tty, ctx, 0, j);
|
|
for (i = 0; i < screen_size_x(s); i++)
|
|
tty_putc(tty, ' ');
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct screen *s = wp->screen;
|
|
u_int i, j;
|
|
|
|
tty_reset(tty);
|
|
|
|
tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
|
|
|
|
for (j = 0; j < screen_size_y(s); j++) {
|
|
tty_cursor_pane(tty, ctx, 0, j);
|
|
for (i = 0; i < screen_size_x(s); i++)
|
|
tty_putc(tty, 'E');
|
|
}
|
|
}
|
|
|
|
void
|
|
tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
struct screen *s = wp->screen;
|
|
u_int cx;
|
|
|
|
tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
|
|
|
|
/* Is the cursor in the very last position? */
|
|
if (ctx->ocx > wp->sx - ctx->last_width) {
|
|
if (wp->xoff != 0 || wp->sx != tty->sx) {
|
|
/*
|
|
* The pane doesn't fill the entire line, the linefeed
|
|
* will already have happened, so just move the cursor.
|
|
*/
|
|
tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
|
|
} else if (tty->cx < tty->sx) {
|
|
/*
|
|
* The cursor isn't in the last position already, so
|
|
* move as far left as possinble and redraw the last
|
|
* cell to move into the last position.
|
|
*/
|
|
cx = screen_size_x(s) - ctx->last_width;
|
|
tty_cursor_pane(tty, ctx, cx, ctx->ocy);
|
|
tty_cell(tty, &ctx->last_cell, &ctx->last_utf8);
|
|
}
|
|
} else
|
|
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
|
|
|
|
tty_cell(tty, ctx->cell, ctx->utf8);
|
|
}
|
|
|
|
void
|
|
tty_cmd_utf8character(struct tty *tty, const struct tty_ctx *ctx)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
|
|
/*
|
|
* Cannot rely on not being a partial character, so just redraw the
|
|
* whole line.
|
|
*/
|
|
tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
|
|
}
|
|
|
|
void
|
|
tty_cell(
|
|
struct tty *tty, const struct grid_cell *gc, const struct grid_utf8 *gu)
|
|
{
|
|
u_int i;
|
|
|
|
/* Skip last character if terminal is stupid. */
|
|
if (tty->term->flags & TERM_EARLYWRAP &&
|
|
tty->cy == tty->sy - 1 && tty->cx == tty->sx - 1)
|
|
return;
|
|
|
|
/* If this is a padding character, do nothing. */
|
|
if (gc->flags & GRID_FLAG_PADDING)
|
|
return;
|
|
|
|
/* Set the attributes. */
|
|
tty_attributes(tty, gc);
|
|
|
|
/* If not UTF-8, write directly. */
|
|
if (!(gc->flags & GRID_FLAG_UTF8)) {
|
|
if (gc->data < 0x20 || gc->data == 0x7f)
|
|
return;
|
|
tty_putc(tty, gc->data);
|
|
return;
|
|
}
|
|
|
|
/* If the terminal doesn't support UTF-8, write underscores. */
|
|
if (!(tty->flags & TTY_UTF8)) {
|
|
for (i = 0; i < gu->width; i++)
|
|
tty_putc(tty, '_');
|
|
return;
|
|
}
|
|
|
|
/* Otherwise, write UTF-8. */
|
|
tty_pututf8(tty, gu);
|
|
}
|
|
|
|
void
|
|
tty_reset(struct tty *tty)
|
|
{
|
|
struct grid_cell *gc = &tty->cell;
|
|
|
|
if (memcmp(gc, &grid_default_cell, sizeof *gc) == 0)
|
|
return;
|
|
|
|
if (tty_term_has(tty->term, TTYC_RMACS) && gc->attr & GRID_ATTR_CHARSET)
|
|
tty_putcode(tty, TTYC_RMACS);
|
|
tty_putcode(tty, TTYC_SGR0);
|
|
memcpy(gc, &grid_default_cell, sizeof *gc);
|
|
}
|
|
|
|
/* Set region inside pane. */
|
|
void
|
|
tty_region_pane(
|
|
struct tty *tty, const struct tty_ctx *ctx, u_int rupper, u_int rlower)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
|
|
tty_region(tty, wp->yoff + rupper, wp->yoff + rlower);
|
|
}
|
|
|
|
/* Set region at absolute position. */
|
|
void
|
|
tty_region(struct tty *tty, u_int rupper, u_int rlower)
|
|
{
|
|
if (tty->rlower == rlower && tty->rupper == rupper)
|
|
return;
|
|
if (!tty_term_has(tty->term, TTYC_CSR))
|
|
return;
|
|
|
|
tty->rupper = rupper;
|
|
tty->rlower = rlower;
|
|
|
|
/*
|
|
* Some terminals (such as PuTTY) do not correctly reset the cursor to
|
|
* 0,0 if it is beyond the last column (they do not reset their wrap
|
|
* flag so further output causes a line feed). As a workaround, do an
|
|
* explicit move to 0 first.
|
|
*/
|
|
if (tty->cx >= tty->sx)
|
|
tty_cursor(tty, 0, tty->cy);
|
|
|
|
tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
|
|
tty_cursor(tty, 0, 0);
|
|
}
|
|
|
|
/* Move cursor inside pane. */
|
|
void
|
|
tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
|
|
{
|
|
struct window_pane *wp = ctx->wp;
|
|
|
|
tty_cursor(tty, wp->xoff + cx, wp->yoff + cy);
|
|
}
|
|
|
|
/* Move cursor to absolute position. */
|
|
void
|
|
tty_cursor(struct tty *tty, u_int cx, u_int cy)
|
|
{
|
|
struct tty_term *term = tty->term;
|
|
u_int thisx, thisy;
|
|
int change;
|
|
|
|
if (cx > tty->sx - 1)
|
|
cx = tty->sx - 1;
|
|
|
|
thisx = tty->cx;
|
|
thisy = tty->cy;
|
|
|
|
/* No change. */
|
|
if (cx == thisx && cy == thisy)
|
|
return;
|
|
|
|
/* Very end of the line, just use absolute movement. */
|
|
if (thisx > tty->sx - 1)
|
|
goto absolute;
|
|
|
|
/* Move to home position (0, 0). */
|
|
if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
|
|
tty_putcode(tty, TTYC_HOME);
|
|
goto out;
|
|
}
|
|
|
|
/* Zero on the next line. */
|
|
if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower) {
|
|
tty_putc(tty, '\r');
|
|
tty_putc(tty, '\n');
|
|
goto out;
|
|
}
|
|
|
|
/* Moving column or row. */
|
|
if (cy == thisy) {
|
|
/*
|
|
* Moving column only, row staying the same.
|
|
*/
|
|
|
|
/* To left edge. */
|
|
if (cx == 0) {
|
|
tty_putc(tty, '\r');
|
|
goto out;
|
|
}
|
|
|
|
/* One to the left. */
|
|
if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) {
|
|
tty_putcode(tty, TTYC_CUB1);
|
|
goto out;
|
|
}
|
|
|
|
/* One to the right. */
|
|
if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) {
|
|
tty_putcode(tty, TTYC_CUF1);
|
|
goto out;
|
|
}
|
|
|
|
/* Calculate difference. */
|
|
change = thisx - cx; /* +ve left, -ve right */
|
|
|
|
/*
|
|
* Use HPA if change is larger than absolute, otherwise move
|
|
* the cursor with CUB/CUF.
|
|
*/
|
|
if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) {
|
|
tty_putcode1(tty, TTYC_HPA, cx);
|
|
goto out;
|
|
} else if (change > 0 && tty_term_has(term, TTYC_CUB)) {
|
|
tty_putcode1(tty, TTYC_CUB, change);
|
|
goto out;
|
|
} else if (change < 0 && tty_term_has(term, TTYC_CUF)) {
|
|
tty_putcode1(tty, TTYC_CUF, -change);
|
|
goto out;
|
|
}
|
|
} else if (cx == thisx) {
|
|
/*
|
|
* Moving row only, column staying the same.
|
|
*/
|
|
|
|
/* One above. */
|
|
if (thisy != tty->rupper &&
|
|
cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) {
|
|
tty_putcode(tty, TTYC_CUU1);
|
|
goto out;
|
|
}
|
|
|
|
/* One below. */
|
|
if (thisy != tty->rlower &&
|
|
cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) {
|
|
tty_putcode(tty, TTYC_CUD1);
|
|
goto out;
|
|
}
|
|
|
|
/* Calculate difference. */
|
|
change = thisy - cy; /* +ve up, -ve down */
|
|
|
|
/*
|
|
* Try to use VPA if change is larger than absolute or if this
|
|
* change would cross the scroll region, otherwise use CUU/CUD.
|
|
*/
|
|
if ((u_int) abs(change) > cy ||
|
|
(change < 0 && cy - change > tty->rlower) ||
|
|
(change > 0 && cy - change < tty->rupper)) {
|
|
if (tty_term_has(term, TTYC_VPA)) {
|
|
tty_putcode1(tty, TTYC_VPA, cy);
|
|
goto out;
|
|
}
|
|
} else if (change > 0 && tty_term_has(term, TTYC_CUU)) {
|
|
tty_putcode1(tty, TTYC_CUU, change);
|
|
goto out;
|
|
} else if (change < 0 && tty_term_has(term, TTYC_CUD)) {
|
|
tty_putcode1(tty, TTYC_CUD, -change);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
absolute:
|
|
/* Absolute movement. */
|
|
tty_putcode2(tty, TTYC_CUP, cy, cx);
|
|
|
|
out:
|
|
tty->cx = cx;
|
|
tty->cy = cy;
|
|
}
|
|
|
|
void
|
|
tty_attributes(struct tty *tty, const struct grid_cell *gc)
|
|
{
|
|
struct grid_cell *tc = &tty->cell, gc2;
|
|
u_char changed;
|
|
|
|
memcpy(&gc2, gc, sizeof gc2);
|
|
|
|
/*
|
|
* If no setab, try to use the reverse attribute as a best-effort for a
|
|
* non-default background. This is a bit of a hack but it doesn't do
|
|
* any serious harm and makes a couple of applications happier.
|
|
*/
|
|
if (!tty_term_has(tty->term, TTYC_SETAB)) {
|
|
if (gc2.attr & GRID_ATTR_REVERSE) {
|
|
if (gc2.fg != 7 && gc2.fg != 8)
|
|
gc2.attr &= ~GRID_ATTR_REVERSE;
|
|
} else {
|
|
if (gc2.bg != 0 && gc2.bg != 8)
|
|
gc2.attr |= GRID_ATTR_REVERSE;
|
|
}
|
|
}
|
|
|
|
/* Fix up the colours if necessary. */
|
|
tty_check_fg(tty, &gc2);
|
|
tty_check_bg(tty, &gc2);
|
|
|
|
/* If any bits are being cleared, reset everything. */
|
|
if (tc->attr & ~gc2.attr)
|
|
tty_reset(tty);
|
|
|
|
/*
|
|
* Set the colours. This may call tty_reset() (so it comes next) and
|
|
* may add to (NOT remove) the desired attributes by changing new_attr.
|
|
*/
|
|
tty_colours(tty, &gc2);
|
|
|
|
/* Filter out attribute bits already set. */
|
|
changed = gc2.attr & ~tc->attr;
|
|
tc->attr = gc2.attr;
|
|
|
|
/* Set the attributes. */
|
|
if (changed & GRID_ATTR_BRIGHT)
|
|
tty_putcode(tty, TTYC_BOLD);
|
|
if (changed & GRID_ATTR_DIM)
|
|
tty_putcode(tty, TTYC_DIM);
|
|
if (changed & GRID_ATTR_ITALICS)
|
|
tty_putcode(tty, TTYC_SMSO);
|
|
if (changed & GRID_ATTR_UNDERSCORE)
|
|
tty_putcode(tty, TTYC_SMUL);
|
|
if (changed & GRID_ATTR_BLINK)
|
|
tty_putcode(tty, TTYC_BLINK);
|
|
if (changed & GRID_ATTR_REVERSE) {
|
|
if (tty_term_has(tty->term, TTYC_REV))
|
|
tty_putcode(tty, TTYC_REV);
|
|
else if (tty_term_has(tty->term, TTYC_SMSO))
|
|
tty_putcode(tty, TTYC_SMSO);
|
|
}
|
|
if (changed & GRID_ATTR_HIDDEN)
|
|
tty_putcode(tty, TTYC_INVIS);
|
|
if (changed & GRID_ATTR_CHARSET)
|
|
tty_putcode(tty, TTYC_SMACS);
|
|
}
|
|
|
|
void
|
|
tty_colours(struct tty *tty, const struct grid_cell *gc)
|
|
{
|
|
struct grid_cell *tc = &tty->cell;
|
|
u_char fg = gc->fg, bg = gc->bg, flags = gc->flags;
|
|
int have_ax, fg_default, bg_default;
|
|
|
|
/* No changes? Nothing is necessary. */
|
|
if (fg == tc->fg && bg == tc->bg &&
|
|
((flags ^ tc->flags) & (GRID_FLAG_FG256|GRID_FLAG_BG256)) == 0)
|
|
return;
|
|
|
|
/*
|
|
* Is either the default colour? This is handled specially because the
|
|
* best solution might be to reset both colours to default, in which
|
|
* case if only one is default need to fall onward to set the other
|
|
* colour.
|
|
*/
|
|
fg_default = (fg == 8 && !(flags & GRID_FLAG_FG256));
|
|
bg_default = (bg == 8 && !(flags & GRID_FLAG_BG256));
|
|
if (fg_default || bg_default) {
|
|
/*
|
|
* If don't have AX but do have op, send sgr0 (op can't
|
|
* actually be used because it is sometimes the same as sgr0
|
|
* and sometimes isn't). This resets both colours to default.
|
|
*
|
|
* Otherwise, try to set the default colour only as needed.
|
|
*/
|
|
have_ax = tty_term_has(tty->term, TTYC_AX);
|
|
if (!have_ax && tty_term_has(tty->term, TTYC_OP))
|
|
tty_reset(tty);
|
|
else {
|
|
if (fg_default &&
|
|
(tc->fg != 8 || tc->flags & GRID_FLAG_FG256)) {
|
|
if (have_ax)
|
|
tty_puts(tty, "\033[39m");
|
|
else if (tc->fg != 7 ||
|
|
tc->flags & GRID_FLAG_FG256)
|
|
tty_putcode1(tty, TTYC_SETAF, 7);
|
|
tc->fg = 8;
|
|
tc->flags &= ~GRID_FLAG_FG256;
|
|
}
|
|
if (bg_default &&
|
|
(tc->bg != 8 || tc->flags & GRID_FLAG_BG256)) {
|
|
if (have_ax)
|
|
tty_puts(tty, "\033[49m");
|
|
else if (tc->bg != 0 ||
|
|
tc->flags & GRID_FLAG_BG256)
|
|
tty_putcode1(tty, TTYC_SETAB, 0);
|
|
tc->bg = 8;
|
|
tc->flags &= ~GRID_FLAG_BG256;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Set the foreground colour. */
|
|
if (!fg_default && (fg != tc->fg ||
|
|
((flags & GRID_FLAG_FG256) != (tc->flags & GRID_FLAG_FG256))))
|
|
tty_colours_fg(tty, gc);
|
|
|
|
/*
|
|
* Set the background colour. This must come after the foreground as
|
|
* tty_colour_fg() can call tty_reset().
|
|
*/
|
|
if (!bg_default && (bg != tc->bg ||
|
|
((flags & GRID_FLAG_BG256) != (tc->flags & GRID_FLAG_BG256))))
|
|
tty_colours_bg(tty, gc);
|
|
}
|
|
|
|
void
|
|
tty_check_fg(struct tty *tty, struct grid_cell *gc)
|
|
{
|
|
u_int colours;
|
|
|
|
/* Is this a 256-colour colour? */
|
|
if (gc->flags & GRID_FLAG_FG256) {
|
|
/* And not a 256 colour mode? */
|
|
if (!(tty->term->flags & TERM_88COLOURS) &&
|
|
!(tty->term_flags & TERM_88COLOURS) &&
|
|
!(tty->term->flags & TERM_256COLOURS) &&
|
|
!(tty->term_flags & TERM_256COLOURS)) {
|
|
gc->fg = colour_256to16(gc->fg);
|
|
if (gc->fg & 8) {
|
|
gc->fg &= 7;
|
|
gc->attr |= GRID_ATTR_BRIGHT;
|
|
} else
|
|
gc->attr &= ~GRID_ATTR_BRIGHT;
|
|
gc->flags &= ~GRID_FLAG_FG256;
|
|
}
|
|
return;
|
|
}
|
|
|
|
/* Is this an aixterm colour? */
|
|
colours = tty_term_number(tty->term, TTYC_COLORS);
|
|
if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) {
|
|
gc->fg -= 90;
|
|
gc->attr |= GRID_ATTR_BRIGHT;
|
|
}
|
|
}
|
|
|
|
void
|
|
tty_check_bg(struct tty *tty, struct grid_cell *gc)
|
|
{
|
|
u_int colours;
|
|
|
|
/* Is this a 256-colour colour? */
|
|
if (gc->flags & GRID_FLAG_BG256) {
|
|
/*
|
|
* And not a 256 colour mode? Translate to 16-colour
|
|
* palette. Bold background doesn't exist portably, so just
|
|
* discard the bold bit if set.
|
|
*/
|
|
if (!(tty->term->flags & TERM_88COLOURS) &&
|
|
!(tty->term_flags & TERM_88COLOURS) &&
|
|
!(tty->term->flags & TERM_256COLOURS) &&
|
|
!(tty->term_flags & TERM_256COLOURS)) {
|
|
gc->bg = colour_256to16(gc->bg);
|
|
if (gc->bg & 8)
|
|
gc->bg &= 7;
|
|
gc->attr &= ~GRID_ATTR_BRIGHT;
|
|
gc->flags &= ~GRID_FLAG_BG256;
|
|
}
|
|
return;
|
|
}
|
|
|
|
/* Is this an aixterm colour? */
|
|
colours = tty_term_number(tty->term, TTYC_COLORS);
|
|
if (gc->bg >= 100 && gc->bg <= 107 && colours < 16) {
|
|
gc->bg -= 90;
|
|
gc->attr |= GRID_ATTR_BRIGHT;
|
|
}
|
|
}
|
|
|
|
void
|
|
tty_colours_fg(struct tty *tty, const struct grid_cell *gc)
|
|
{
|
|
struct grid_cell *tc = &tty->cell;
|
|
u_char fg = gc->fg;
|
|
char s[32];
|
|
|
|
/* Is this a 256-colour colour? */
|
|
if (gc->flags & GRID_FLAG_FG256) {
|
|
/* Try as 256 colours or translating to 88. */
|
|
if (tty_try_256(tty, fg, "38") == 0)
|
|
goto save_fg;
|
|
if (tty_try_88(tty, fg, "38") == 0)
|
|
goto save_fg;
|
|
/* Else already handled by tty_check_fg. */
|
|
return;
|
|
}
|
|
|
|
/* Is this an aixterm bright colour? */
|
|
if (fg >= 90 && fg <= 97) {
|
|
xsnprintf(s, sizeof s, "\033[%dm", fg);
|
|
tty_puts(tty, s);
|
|
goto save_fg;
|
|
}
|
|
|
|
/* Otherwise set the foreground colour. */
|
|
tty_putcode1(tty, TTYC_SETAF, fg);
|
|
|
|
save_fg:
|
|
/* Save the new values in the terminal current cell. */
|
|
tc->fg = fg;
|
|
tc->flags &= ~GRID_FLAG_FG256;
|
|
tc->flags |= gc->flags & GRID_FLAG_FG256;
|
|
}
|
|
|
|
void
|
|
tty_colours_bg(struct tty *tty, const struct grid_cell *gc)
|
|
{
|
|
struct grid_cell *tc = &tty->cell;
|
|
u_char bg = gc->bg;
|
|
char s[32];
|
|
|
|
/* Is this a 256-colour colour? */
|
|
if (gc->flags & GRID_FLAG_BG256) {
|
|
/* Try as 256 colours or translating to 88. */
|
|
if (tty_try_256(tty, bg, "48") == 0)
|
|
goto save_bg;
|
|
if (tty_try_88(tty, bg, "48") == 0)
|
|
goto save_bg;
|
|
/* Else already handled by tty_check_bg. */
|
|
return;
|
|
}
|
|
|
|
/* Is this an aixterm bright colour? */
|
|
if (bg >= 100 && bg <= 107) {
|
|
/* 16 colour terminals or above only. */
|
|
if (tty_term_number(tty->term, TTYC_COLORS) >= 16) {
|
|
xsnprintf(s, sizeof s, "\033[%dm", bg);
|
|
tty_puts(tty, s);
|
|
goto save_bg;
|
|
}
|
|
bg -= 100;
|
|
/* no such thing as a bold background */
|
|
}
|
|
|
|
/* Otherwise set the background colour. */
|
|
tty_putcode1(tty, TTYC_SETAB, bg);
|
|
|
|
save_bg:
|
|
/* Save the new values in the terminal current cell. */
|
|
tc->bg = bg;
|
|
tc->flags &= ~GRID_FLAG_BG256;
|
|
tc->flags |= gc->flags & GRID_FLAG_BG256;
|
|
}
|
|
|
|
int
|
|
tty_try_256(struct tty *tty, u_char colour, const char *type)
|
|
{
|
|
char s[32];
|
|
|
|
if (!(tty->term->flags & TERM_256COLOURS) &&
|
|
!(tty->term_flags & TERM_256COLOURS))
|
|
return (-1);
|
|
|
|
xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
|
|
tty_puts(tty, s);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
tty_try_88(struct tty *tty, u_char colour, const char *type)
|
|
{
|
|
char s[32];
|
|
|
|
if (!(tty->term->flags & TERM_88COLOURS) &&
|
|
!(tty->term_flags & TERM_88COLOURS))
|
|
return (-1);
|
|
colour = colour_256to88(colour);
|
|
|
|
xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
|
|
tty_puts(tty, s);
|
|
return (0);
|
|
}
|