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128 lines
2.9 KiB
C
128 lines
2.9 KiB
C
/* rxvt.c - gives output lines on rxvt with a special rxvt patch
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Copyright (C) 1997 Paul Sheer
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <config.h>
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#include <stdio.h> /* read, printf */
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#include <stdlib.h> /* getenv */
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#include <sys/types.h>
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#include <string.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include <malloc.h> /* malloc */
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#ifndef SCO_FLAVOR
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# include <sys/time.h> /* struct timeval */
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#endif /* SCO_FLAVOR */
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#if HAVE_SYS_SELECT_H
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# include <sys/select.h>
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#endif
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#include "tty.h" /* move, addch */
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#include "util.h" /* is_printable */
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#include "cons.saver.h"
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int rxvt_extensions = 0;
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int look_for_rxvt_extensions (void)
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{
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static int been_called = 0;
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char *e;
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if (!been_called) {
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rxvt_extensions = 0;
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e = getenv ("RXVT_EXT");
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if (e)
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if (!strcmp (e, "1.0"))
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rxvt_extensions = 1;
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been_called = 1;
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}
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if (rxvt_extensions)
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console_flag = 4;
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return rxvt_extensions;
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}
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/* my own wierd protocol base 16 - paul */
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static int rxvt_getc (void)
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{
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int r;
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unsigned char c;
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while (read (0, &c, 1) != 1);
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if (c == '\n')
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return -1;
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r = (c - 'A') * 16;
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while (read (0, &c, 1) != 1);
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r += (c - 'A');
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return r;
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}
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extern int keybar_visible;
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static int anything_ready ()
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{
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fd_set fds;
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struct timeval tv;
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FD_ZERO (&fds);
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FD_SET (0, &fds);
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tv.tv_sec = 0;
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tv.tv_usec = 0;
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return select (1, &fds, 0, 0, &tv);
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}
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void show_rxvt_contents (int starty, unsigned char y1, unsigned char y2)
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{
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unsigned char *k;
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int bytes, i, j, cols = 0;
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y1 += (keybar_visible != 0); /* i don't knwo why we need this - paul */
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y2 += (keybar_visible != 0);
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while (anything_ready ())
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getch ();
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/* my own wierd protocol base 26 - paul */
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printf ("\033CL%c%c%c%c\n",
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(y1 / 26) + 'A', (y1 % 26) + 'A',
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(y2 / 26) + 'A', (y2 % 26) + 'A');
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bytes = (y2 - y1) * (COLS + 1) + 1; /* *should* be the number of bytes read */
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j = 0;
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k = malloc (bytes);
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for (;;) {
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int c;
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c = rxvt_getc ();
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if (c < 0)
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break;
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if (j < bytes)
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k[j++] = c;
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for (cols = 1;;cols++) {
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c = rxvt_getc ();
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if (c < 0)
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break;
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if (j < bytes)
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k[j++] = c;
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}
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}
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for (i = 0; i < j; i++) {
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if ((i % cols) == 0)
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move (starty + (i / cols), 0);
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addch (is_printable (k[i]) ? k[i] : ' ');
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}
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free (k);
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}
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