mc/lib/tty/win.c
Slava Zanko 93dbc46e9c Reorganization of sources. Part 1.
* moved src/global.h into lib/global.h
 * moved glibcompat.[ch] from ./src/ into ./lib/
 * moved fs.h from ./src/ into ./lib/

Signed-off-by: Slava Zanko <slavazanko@gmail.com>
2010-01-26 10:30:23 +02:00

163 lines
4.1 KiB
C

/* Terminal management xterm and rxvt support
Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
2007, 2009 Free Software Foundation, Inc.
Written by:
Andrew Borodin <aborodin@vmail.ru>, 2009.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/** \file win.c
* \brief Source: Terminal management xterm and rxvt support
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include "lib/global.h"
#include "tty.h" /* tty_gotoyx, tty_print_char */
#include "win.h"
#include "src/cons.saver.h" /* console_flag */
/*** global variables **************************************************/
/* This flag is set by xterm detection routine in function main() */
/* It is used by function view_other_cmd() */
int xterm_flag = 0;
extern int keybar_visible;
/*** file scope macro definitions **************************************/
/*** file scope type declarations **************************************/
/*** file scope variables **********************************************/
static gboolean rxvt_extensions = FALSE;
/*** file scope functions **********************************************/
/* my own wierd protocol base 16 - paul */
static int
rxvt_getc (void)
{
int r;
unsigned char c;
while (read (0, &c, 1) != 1);
if (c == '\n')
return -1;
r = (c - 'A') * 16;
while (read (0, &c, 1) != 1);
r += (c - 'A');
return r;
}
static int
anything_ready (void)
{
fd_set fds;
struct timeval tv;
FD_ZERO (&fds);
FD_SET (0, &fds);
tv.tv_sec = 0;
tv.tv_usec = 0;
return select (1, &fds, 0, 0, &tv);
}
/*** public functions **************************************************/
void
do_enter_ca_mode (void)
{
if (xterm_flag) {
fprintf (stdout, /* ESC_STR ")0" */ ESC_STR "7" ESC_STR "[?47h");
fflush (stdout);
}
}
void
do_exit_ca_mode (void)
{
if (xterm_flag) {
fprintf (stdout, ESC_STR "[?47l" ESC_STR "8" ESC_STR "[m");
fflush (stdout);
}
}
void
show_rxvt_contents (int starty, unsigned char y1, unsigned char y2)
{
unsigned char *k;
int bytes, i, j, cols = 0;
y1 += (keybar_visible != 0); /* i don't knwo why we need this - paul */
y2 += (keybar_visible != 0);
while (anything_ready ())
tty_lowlevel_getch ();
/* my own wierd protocol base 26 - paul */
printf ("\033CL%c%c%c%c\n", (y1 / 26) + 'A', (y1 % 26) + 'A', (y2 / 26) + 'A', (y2 % 26) + 'A');
bytes = (y2 - y1) * (COLS + 1) + 1; /* *should* be the number of bytes read */
j = 0;
k = g_malloc (bytes);
for (;;) {
int c;
c = rxvt_getc ();
if (c < 0)
break;
if (j < bytes)
k[j++] = c;
for (cols = 1;; cols++) {
c = rxvt_getc ();
if (c < 0)
break;
if (j < bytes)
k[j++] = c;
}
}
for (i = 0; i < j; i++) {
if ((i % cols) == 0)
tty_gotoyx (starty + (i / cols), 0);
tty_print_char (is_printable (k[i]) ? k[i] : ' ');
}
g_free (k);
}
gboolean
look_for_rxvt_extensions (void)
{
static gboolean been_called = FALSE;
if (!been_called) {
const char *e = getenv ("RXVT_EXT");
rxvt_extensions = ((e != NULL) && (strcmp (e, "1.0") == 0));
been_called = TRUE;
}
if (rxvt_extensions)
console_flag = 4;
return rxvt_extensions;
}