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/*
term.c : irssi
Copyright (C) 2001 Timo Sirainen
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "module.h"
#include "signals.h"
#include "commands.h"
#include "settings.h"
#include "term.h"
#include "mainwindows.h"
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#include <signal.h>
#include <termios.h>
#define RESIZE_TIMEOUT 500 /* how often to check if the terminal has been resized */
#define MIN_SCREEN_WIDTH 20
int term_use_colors;
#ifdef SIGWINCH
static int resize_timeout_tag;
#endif
static int resize_needed;
static int resize_timeout(void)
{
#ifdef TIOCGWINSZ
struct winsize ws;
#endif
if (!resize_needed)
return TRUE;
resize_needed = FALSE;
#ifdef TIOCGWINSZ
/* Get new window size */
if (ioctl(0, TIOCGWINSZ, &ws) < 0)
return TRUE;
if (ws.ws_row == term_height && ws.ws_col == term_width) {
/* Same size, abort. */
return TRUE;
}
if (ws.ws_col < MIN_SCREEN_WIDTH)
ws.ws_col = MIN_SCREEN_WIDTH;
term_resize(ws.ws_col, ws.ws_row);
#else
term_resize(-1, -1);
#endif
mainwindows_resize(term_width, term_height);
return TRUE;
}
#ifdef SIGWINCH
static void sig_winch(int p)
{
resize_needed = TRUE;
}
#endif
static void cmd_resize(void)
{
resize_needed = TRUE;
resize_timeout();
}
static void read_settings(void)
{
int old_colors = term_use_colors;
if (settings_get_bool("force_colors")) {
if (!term_use_colors) {
term_force_colors(TRUE);
term_use_colors = TRUE;
}
} else {
if (!term_has_colors() && term_use_colors)
term_force_colors(FALSE);
term_use_colors = settings_get_bool("colors");
if (term_use_colors && !term_has_colors())
term_use_colors = FALSE;
}
if (term_use_colors != old_colors)
irssi_redraw();
}
void term_common_init(void)
{
#ifdef SIGWINCH
struct sigaction act;
#endif
settings_add_bool("lookandfeel", "colors", TRUE);
settings_add_bool("lookandfeel", "force_colors", FALSE);
term_use_colors = term_has_colors() && settings_get_bool("colors");
read_settings();
signal_add("beep", (SIGNAL_FUNC) term_beep);
signal_add("setup changed", (SIGNAL_FUNC) read_settings);
command_bind("resize", NULL, (SIGNAL_FUNC) cmd_resize);
#ifdef SIGWINCH
sigemptyset (&act.sa_mask);
act.sa_flags = 0;
act.sa_handler = sig_winch;
sigaction(SIGWINCH, &act, NULL);
resize_timeout_tag = g_timeout_add(RESIZE_TIMEOUT,
(GSourceFunc) resize_timeout, NULL);
#endif
}
void term_common_deinit(void)
{
#ifdef SIGWINCH
g_source_remove(resize_timeout_tag);
#endif
command_unbind("resize", (SIGNAL_FUNC) cmd_resize);
signal_remove("beep", (SIGNAL_FUNC) term_beep);
signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
}
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