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/*
term-curses.c : irssi
Copyright (C) 1999-2001 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
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "module.h"
#include "settings.h"
#include "term.h"
#include "mainwindows.h"
#ifdef HAVE_CUIX
#include "cuix.h"
#endif
#include "term-curses.h"
#include <termios.h>
#include <signal.h>
#ifndef COLOR_PAIRS
# define COLOR_PAIRS 64
#endif
#if defined (TIOCGWINSZ) && defined (HAVE_CURSES_RESIZETERM)
# define USE_RESIZE_TERM
#endif
#ifndef _POSIX_VDISABLE
# define _POSIX_VDISABLE 0
#endif
TERM_WINDOW *root_window;
static int curs_x, curs_y;
static int freeze_refresh;
static struct termios old_tio;
static int init_curses(void)
{
char ansi_tab[8] = { 0, 4, 2, 6, 1, 5, 3, 7 };
int num;
struct termios tio;
if (!initscr())
return FALSE;
cbreak(); noecho(); idlok(stdscr, 1);
#ifdef HAVE_CURSES_IDCOK
/*idcok(stdscr, 1); - disabled currently, causes redrawing problems with NetBSD */
#endif
intrflush(stdscr, FALSE); nodelay(stdscr, TRUE);
/* Disable INTR, QUIT, VDSUSP and SUSP keys */
if (tcgetattr(0, &old_tio) == 0) {
memcpy(&tio, &old_tio, sizeof(tio));
tio.c_cc[VINTR] = _POSIX_VDISABLE;
tio.c_cc[VQUIT] = _POSIX_VDISABLE;
#ifdef VDSUSP
tio.c_cc[VDSUSP] = _POSIX_VDISABLE;
#endif
#ifdef VSUSP
tio.c_cc[VSUSP] = _POSIX_VDISABLE;
#endif
tcsetattr(0, TCSADRAIN, &tio);
}
if (has_colors())
start_color();
else if (term_use_colors)
term_use_colors = FALSE;
#ifdef HAVE_NCURSES_USE_DEFAULT_COLORS
/* this lets us to use the "default" background color for colors <= 7 so
background pixmaps etc. show up right */
use_default_colors();
for (num = 1; num < COLOR_PAIRS; num++)
init_pair(num, ansi_tab[num & 7], num <= 7 ? -1 : ansi_tab[num >> 3]);
init_pair(63, 0, -1); /* hm.. not THAT good idea, but probably more
people want dark grey than white on white.. */
#else
for (num = 1; num < COLOR_PAIRS; num++)
init_pair(num, ansi_tab[num & 7], ansi_tab[num >> 3]);
init_pair(63, 0, 0);
#endif
clear();
return TRUE;
}
static int term_init_int(void)
{
int ret;
ret = init_curses();
if (!ret) return 0;
curs_x = curs_y = 0;
freeze_refresh = 0;
root_window = g_new0(TERM_WINDOW, 1);
root_window->win = stdscr;
term_width = COLS;
term_height = LINES;
return ret;
}
static void term_deinit_int(void)
{
tcsetattr(0, TCSADRAIN, &old_tio);
endwin();
g_free_and_null(root_window);
}
int term_init(void)
{
if (!term_init_int())
return FALSE;
settings_add_int("lookandfeel", "default_color", 7);
term_common_init();
return TRUE;
}
void term_deinit(void)
{
term_common_deinit();
term_deinit_int();
}
/* Resize terminal - if width or height is negative,
the new size is unknown and should be figured out somehow */
void term_resize(int width, int height)
{
#ifdef HAVE_CURSES_RESIZETERM
if (width < 0 || height < 0) {
#endif
term_deinit_int();
term_init_int();
#ifdef HAVE_CURSES_RESIZETERM
} else if (term_width != width || term_height != height) {
term_width = width;
term_height = height;
resizeterm(term_height, term_width);
}
#endif
}
void term_resize_final(int width, int height)
{
#ifdef HAVE_CURSES_RESIZETERM
if (width < 0 || height < 0)
mainwindows_recreate();
#else
mainwindows_recreate();
#endif
}
/* Returns TRUE if terminal has colors */
int term_has_colors(void)
{
return has_colors();
}
/* Force the colors on any way you can */
void term_force_colors(int set)
{
/* don't do anything with curses */
}
/* Clear screen */
void term_clear(void)
{
term_set_color(root_window, 0);
clear();
}
/* Beep */
void term_beep(void)
{
beep();
}
/* Create a new window in terminal */
TERM_WINDOW *term_window_create(int x, int y, int width, int height)
{
TERM_WINDOW *window;
window = g_new0(TERM_WINDOW, 1);
window->x = x; window->y = y;
window->width = width; window->height = height;
window->win = newwin(height, width, y, x);
if (window->win == NULL)
g_error("newwin() failed: %d,%d %d,%d", x, y, width, height);
idlok(window->win, 1);
return window;
}
/* Destroy a terminal window */
void term_window_destroy(TERM_WINDOW *window)
{
delwin(window->win);
g_free(window);
}
/* Move/resize a window */
void term_window_move(TERM_WINDOW *window, int x, int y,
int width, int height)
{
/* some checks to make sure the window is visible in screen,
otherwise curses could get nasty and not show our window anymore. */
if (width < 1) width = 1;
if (height < 1) height = 1;
if (x+width > term_width) x = term_width-width;
if (y+height > term_height) y = term_height-height;
#ifdef HAVE_CURSES_WRESIZE
if (window->width != width || window->height != height)
wresize(window->win, height, width);
if (window->x != x || window->y != y)
mvwin(window->win, y, x);
#else
if (window->width != width || window->height != height ||
window->x != x || window->y != y) {
delwin(window->win);
window->win = newwin(height, width, y, x);
idlok(window->win, 1);
}
#endif
window->x = x; window->y = y;
window->width = width; window->height = height;
}
/* Clear window */
void term_window_clear(TERM_WINDOW *window)
{
werase(window->win);
}
/* Scroll window up/down */
void term_window_scroll(TERM_WINDOW *window, int count)
{
scrollok(window->win, TRUE);
wscrl(window->win, count);
scrollok(window->win, FALSE);
}
static int get_attr(int color)
{
int attr;
if (!term_use_colors)
attr = (color & 0x70) ? A_REVERSE : 0;
else if ((color & 0xff) == 8 || (color & (0xff | ATTR_RESETFG)) == 0)
attr = COLOR_PAIR(63);
else if ((color & 0x77) == 0)
attr = A_NORMAL;
else {
if (color & ATTR_RESETFG) {
color &= ~0x0f;
color |= settings_get_int("default_color");
}
attr = COLOR_PAIR((color&7) | ((color&0x70)>>1));
}
if ((color & 0x08) || (color & ATTR_BOLD)) attr |= A_BOLD;
if (color & ATTR_BLINK) attr |= A_BLINK;
if (color & ATTR_UNDERLINE) attr |= A_UNDERLINE;
if (color & ATTR_REVERSE) attr |= A_REVERSE;
return attr;
}
/* Change active color */
void term_set_color(TERM_WINDOW *window, int col)
{
wattrset(window->win, get_attr(col));
wbkgdset(window->win, ' ' | get_attr(col));
}
void term_move(TERM_WINDOW *window, int x, int y)
{
wmove(window->win, y, x);
}
void term_addch(TERM_WINDOW *window, int chr)
{
waddch(window->win, chr);
}
void term_add_unichar(TERM_WINDOW *window, unichar chr)
{
#ifdef WIDEC_CURSES
cchar_t wch;
wchar_t temp[2];
temp[0] = chr;
temp[1] = 0;
if (setcchar(&wch, temp, A_NORMAL, 0, NULL) == OK)
wadd_wch(window->win, &wch);
else
#endif
waddch(window->win, chr);
}
void term_addstr(TERM_WINDOW *window, const char *str)
{
waddstr(window->win, (const char *) str);
}
void term_clrtoeol(TERM_WINDOW *window)
{
wclrtoeol(window->win);
}
void term_move_cursor(int x, int y)
{
curs_x = x;
curs_y = y;
}
void term_refresh_freeze(void)
{
freeze_refresh++;
}
void term_refresh_thaw(void)
{
if (freeze_refresh > 0) {
freeze_refresh--;
if (freeze_refresh == 0) term_refresh(NULL);
}
}
void term_refresh(TERM_WINDOW *window)
{
#ifdef HAVE_CUIX
if (!cuix_active) {
#endif
if (window != NULL)
wnoutrefresh(window->win);
if (freeze_refresh == 0) {
move(curs_y, curs_x);
wnoutrefresh(stdscr);
#ifdef HAVE_CUIX
cuix_refresh ();
#endif
doupdate();
}
#ifdef HAVE_CUIX
} else {
update_panels ();
doupdate ();
}
#endif
}
void term_stop(void)
{
term_deinit_int();
kill(getpid(), SIGTSTP);
term_init_int();
irssi_redraw();
}
void term_auto_detach(int set)
{
}
void term_set_input_type(int type)
{
}
int term_gets(unichar *buffer, int size)
{
int count;
#ifdef WIDEC_CURSES
wint_t key;
#else
int key;
#endif
for (count = 0; count < size; ) {
#ifdef WIDEC_CURSES
if (get_wch(&key) == ERR)
#else
if ((key = getch()) == ERR)
#endif
break;
#ifdef KEY_RESIZE
if (key == KEY_RESIZE)
continue;
#endif
buffer[count++] = key;
}
return count;
}
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