summaryrefslogtreecommitdiffstats
path: root/lib/tty/win.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/tty/win.c')
-rw-r--r--lib/tty/win.c168
1 files changed, 168 insertions, 0 deletions
diff --git a/lib/tty/win.c b/lib/tty/win.c
new file mode 100644
index 0000000..45451a4
--- /dev/null
+++ b/lib/tty/win.c
@@ -0,0 +1,168 @@
+/*
+ Terminal management xterm and rxvt support
+
+ Copyright (C) 1995-2023
+ Free Software Foundation, Inc.
+
+ Written by:
+ Andrew Borodin <aborodin@vmail.ru>, 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+/** \file win.c
+ * \brief Source: Terminal management xterm and rxvt support
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#else
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+#endif
+
+#include "lib/global.h"
+#include "lib/util.h" /* is_printable() */
+#include "tty-internal.h"
+#include "tty.h" /* tty_gotoyx, tty_print_char */
+#include "win.h"
+
+/*** global variables ****************************************************************************/
+
+char *smcup = NULL;
+char *rmcup = NULL;
+
+/*** file scope macro definitions ****************************************************************/
+
+/*** file scope type declarations ****************************************************************/
+
+/*** forward declarations (file scope functions) *************************************************/
+
+/*** file scope variables ************************************************************************/
+
+static gboolean rxvt_extensions = FALSE;
+
+/* --------------------------------------------------------------------------------------------- */
+/*** file scope functions ************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+/* my own weird 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
+show_rxvt_contents (int starty, unsigned char y1, unsigned char y2)
+{
+ unsigned char *k;
+ int bytes, i, j, cols = 0;
+
+ y1 += mc_global.keybar_visible != 0 ? 1 : 0; /* i don't know why we need this - paul */
+ y2 += mc_global.keybar_visible != 0 ? 1 : 0;
+ while (anything_ready ())
+ tty_lowlevel_getch ();
+
+ /* my own weird protocol base 26 - paul */
+ printf (ESC_STR "CL%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);
+ while (TRUE)
+ {
+ 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)
+ mc_global.tty.console_flag = '\004';
+
+ return rxvt_extensions;
+}
+
+/* --------------------------------------------------------------------------------------------- */