mirrors
/
mc
mirror of https://github.com/MidnightCommander/mc
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
mc/lib/tty/tty-ncurses.c

447 lines
9.7 KiB
C
Raw Blame History

/*
Interface to the terminal controlling library.
Ncurses wrapper.
Copyright (C) 2005, 2006, 2007, 2009 Free Software Foundation, Inc.
Written by:
Andrew Borodin <aborodin@vmail.ru>, 2009.
Ilia Maslakov <il.smind@gmail.com>, 2009.
This file is part of the Midnight Commander.
The Midnight Commander 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.
The Midnight Commander 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., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
*/
/** \file
* \brief Source: NCurses-based tty layer of Midnight-commander
*/
#include <config.h>
#include <stdlib.h>
#include <stdarg.h>
#include <signal.h>
#include "lib/global.h"
#include "lib/strutil.h" /* str_term_form */
#include "src/main.h"
#ifndef WANT_TERM_H
# define WANT_TERM_H
#endif
#include "tty-internal.h" /* slow_tty */
#include "tty.h"
#include "color-internal.h"
#include "win.h"
/* include at last !!! */
#ifdef WANT_TERM_H
#ifdef HAVE_NCURSES_TERM_H
# include <ncurses/term.h>
#else
# include <term.h>
#endif /* HAVE_NCURSES_TERM_H */
#endif /* WANT_TERM_H */
/*** global variables **************************************************/
/*** file scope macro definitions **************************************/
#if defined(_AIX) && !defined(CTRL)
# define CTRL(x) ((x) & 0x1f)
#endif
/*** global variables **************************************************/
/*** file scope type declarations **************************************/
/*** file scope variables **********************************************/
/*** file scope functions **********************************************/
/* --------------------------------------------------------------------------------------------- */
/*** public functions **************************************************/
/* --------------------------------------------------------------------------------------------- */
int
mc_tty_normalize_lines_char (const char *ch)
{
char *str2;
int res;
struct mc_tty_lines_struct
{
const char *line;
int line_code;
} const lines_codes[] = {
{"\342\224\230", ACS_LRCORNER}, /* ┌ */
{"\342\224\224", ACS_LLCORNER}, /* └ */
{"\342\224\220", ACS_URCORNER}, /* ┐ */
{"\342\224\214", ACS_ULCORNER}, /* ┘ */
{"\342\224\234", ACS_LTEE}, /* ├ */
{"\342\224\244", ACS_RTEE}, /* ┤ */
{"\342\224\254", ACS_TTEE}, /* ┬ */
{"\342\224\264", ACS_BTEE}, /* ┴ */
{"\342\224\200", ACS_HLINE}, /* ─ */
{"\342\224\202", ACS_VLINE}, /* │ */
{"\342\224\274", ACS_PLUS}, /* ┼ */
{"\342\225\235", ACS_LRCORNER | A_BOLD}, /* ╔ */
{"\342\225\232", ACS_LLCORNER | A_BOLD}, /* ╚ */
{"\342\225\227", ACS_URCORNER | A_BOLD}, /* ╗ */
{"\342\225\224", ACS_ULCORNER | A_BOLD}, /* ╝ */
{"\342\225\237", ACS_LTEE | A_BOLD}, /* ╟ */
{"\342\225\242", ACS_RTEE | A_BOLD}, /* ╢ */
{"\342\225\244", ACS_TTEE | A_BOLD}, /* ╤ */
{"\342\225\247", ACS_BTEE | A_BOLD}, /* ╧ */
{"\342\225\220", ACS_HLINE | A_BOLD}, /* ═ */
{"\342\225\221", ACS_VLINE | A_BOLD}, /* ║ */
{NULL, 0}
};
if (ch == NULL)
return (int) ' ';
for (res = 0; lines_codes[res].line; res++)
{
if (strcmp (ch, lines_codes[res].line) == 0)
return lines_codes[res].line_code;
}
str2 = mc_tty_normalize_from_utf8 (ch);
res = g_utf8_get_char_validated (str2, -1);
if (res < 0)
res = (unsigned char) str2[0];
g_free (str2);
return res;
}
/* --------------------------------------------------------------------------------------------- */
void
tty_init (gboolean slow, gboolean ugly_lines)
{
slow_tty = slow;
(void) ugly_lines;
initscr ();
#ifdef HAVE_ESCDELAY
/*
* If ncurses exports the ESCDELAY variable, it should be set to
* a low value, or you'll experience a delay in processing escape
* sequences that are recognized by mc (e.g. Esc-Esc). On the other
* hand, making ESCDELAY too small can result in some sequences
* (e.g. cursor arrows) being reported as separate keys under heavy
* processor load, and this can be a problem if mc hasn't learned
* them in the "Learn Keys" dialog. The value is in milliseconds.
*/
ESCDELAY = 200;
#endif /* HAVE_ESCDELAY */
/* use Ctrl-g to generate SIGINT */
cur_term->Nttyb.c_cc[VINTR] = CTRL ('g'); /* ^g */
/* disable SIGQUIT to allow use Ctrl-\ key */
cur_term->Nttyb.c_cc[VQUIT] = NULL_VALUE;
tcsetattr (cur_term->Filedes, TCSANOW, &cur_term->Nttyb);
tty_start_interrupt_key ();
do_enter_ca_mode ();
tty_raw_mode ();
noecho ();
keypad (stdscr, TRUE);
nodelay (stdscr, FALSE);
}
void
tty_shutdown (void)
{
endwin ();
}
void
tty_reset_prog_mode (void)
{
reset_prog_mode ();
}
void
tty_reset_shell_mode (void)
{
reset_shell_mode ();
}
void
tty_raw_mode (void)
{
raw (); /* FIXME: uneeded? */
cbreak ();
}
void
tty_noraw_mode (void)
{
nocbreak (); /* FIXME: unneeded? */
noraw ();
}
void
tty_noecho (void)
{
noecho ();
}
int
tty_flush_input (void)
{
return flushinp ();
}
void
tty_keypad (gboolean set)
{
keypad (stdscr, (bool) set);
}
void
tty_nodelay (gboolean set)
{
nodelay (stdscr, (bool) set);
}
int
tty_baudrate (void)
{
return baudrate ();
}
int
tty_lowlevel_getch (void)
{
return getch ();
}
int
tty_reset_screen (void)
{
return endwin ();
}
void
tty_touch_screen (void)
{
touchwin (stdscr);
}
void
tty_gotoyx (int y, int x)
{
move (y, x);
}
void
tty_getyx (int *py, int *px)
{
getyx (stdscr, *py, *px);
}
/* if x < 0 or y < 0, draw line starting from current position */
void
tty_draw_hline (int y, int x, int ch, int len)
{
if ((chtype) ch == ACS_HLINE)
ch = mc_tty_frm[MC_TTY_FRM_HORIZ];
if ((y >= 0) && (x >= 0))
move (y, x);
hline (ch, len);
}
/* if x < 0 or y < 0, draw line starting from current position */
void
tty_draw_vline (int y, int x, int ch, int len)
{
if ((chtype) ch == ACS_VLINE)
ch = mc_tty_frm[MC_TTY_FRM_VERT];
if ((y >= 0) && (x >= 0))
move (y, x);
vline (ch, len);
}
void
tty_fill_region (int y, int x, int rows, int cols, unsigned char ch)
{
int i;
if (y < 0)
{
rows += y;
if (rows <= 0)
return;
y = 0;
}
if (x < 0)
{
cols += x;
if (cols <= 0)
return;
x = 0;
}
if (y + rows > LINES)
rows = LINES - y;
if (x + cols > COLS)
cols = COLS - x;
for (i = 0; i < rows; i++)
{
move (y + i, x);
hline (ch, cols);
}
move (y, x);
}
void
tty_set_alt_charset (gboolean alt_charset)
{
(void) alt_charset;
}
void
tty_display_8bit (gboolean what)
{
meta (stdscr, (int) what);
}
void
tty_print_char (int c)
{
addch (c);
}
void
tty_print_anychar (int c)
{
unsigned char str[6 + 1];
if (utf8_display || c > 255)
{
int res = g_unichar_to_utf8 (c, (char *) str);
if (res == 0)
{
str[0] = '.';
str[1] = '\0';
}
else
str[res] = '\0';
addstr (str_term_form ((char *) str));
}
else
addch (c);
}
void
tty_print_alt_char (int c, gboolean single)
{
if ((chtype) c == ACS_VLINE)
c = mc_tty_frm[single ? MC_TTY_FRM_VERT : MC_TTY_FRM_DVERT];
else if ((chtype) c == ACS_HLINE)
c = mc_tty_frm[single ? MC_TTY_FRM_HORIZ : MC_TTY_FRM_DHORIZ];
else if ((chtype) c == ACS_LTEE)
c = mc_tty_frm[single ? MC_TTY_FRM_LEFTMIDDLE : MC_TTY_FRM_DLEFTMIDDLE];
else if ((chtype) c == ACS_RTEE)
c = mc_tty_frm[single ? MC_TTY_FRM_RIGHTMIDDLE : MC_TTY_FRM_DRIGHTMIDDLE];
else if ((chtype) c == ACS_ULCORNER)
c = mc_tty_frm[single ? MC_TTY_FRM_LEFTTOP : MC_TTY_FRM_DLEFTTOP];
else if ((chtype) c == ACS_LLCORNER)
c = mc_tty_frm[single ? MC_TTY_FRM_LEFTBOTTOM : MC_TTY_FRM_DLEFTBOTTOM];
else if ((chtype) c == ACS_URCORNER)
c = mc_tty_frm[single ? MC_TTY_FRM_RIGHTTOP : MC_TTY_FRM_DRIGHTTOP];
else if ((chtype) c == ACS_LRCORNER)
c = mc_tty_frm[single ? MC_TTY_FRM_RIGHTBOTTOM : MC_TTY_FRM_DRIGHTBOTTOM];
else if ((chtype) c == ACS_PLUS)
c = mc_tty_frm[MC_TTY_FRM_CROSS];
addch (c);
}
void
tty_print_string (const char *s)
{
addstr (str_term_form (s));
}
void
tty_printf (const char *fmt, ...)
{
va_list args;
va_start (args, fmt);
vw_printw (stdscr, fmt, args);
va_end (args);
}
char *
tty_tgetstr (const char *cap)
{
char *unused = NULL;
return tgetstr ((char *) cap, &unused);
}
void
tty_refresh (void)
{
refresh ();
doupdate ();
}
void
tty_setup_sigwinch (void (*handler) (int))
{
#if (NCURSES_VERSION_MAJOR >= 4) && defined (SIGWINCH)
struct sigaction act, oact;
act.sa_handler = handler;
sigemptyset (&act.sa_mask);
act.sa_flags = 0;
#ifdef SA_RESTART
act.sa_flags |= SA_RESTART;
#endif /* SA_RESTART */
sigaction (SIGWINCH, &act, &oact);
#endif /* SIGWINCH */
}
void
tty_beep (void)
{
beep ();
}
Reference in New Issue View Git Blame Copy Permalink