This patch set adds a new feature to the text edtion (off by default).

`--with-tm-x-support'
     This option enables minimal X Window support in the text edition. It
     enables MC to query the status of the modifiers CONTROL and SHIFT
     when invoked in a terminal emulation under X11. That's necessary
     to recognice key combinations like C-HOME or S-Cursor key.


Wed Apr 21 20:37:32 1999  Norbert Warmuth  <nwarmuth@privat.circular.de>

* configure.in: New option --with-tm-x-support, use MCCFLAGS and
MCLIBS for build flags which are specific to the text edition.

* INSTALL: Added documentation for --with-tm-x-support

* src/Makefile.in: use MCCFLAGS and MCLIBS


Wed Apr 21 20:19:45 1999  Norbert Warmuth  <nwarmuth@privat.circular.de>

* src/key.c (get_modifier): Query the state of the modifier keys when
running inside a terminal emulation under X11.

* src/key.c (init_textmode_x11_support, done_textmode_x11_support): new
functions, only used in the text edition. Connect to and disconnect
from the X Server when DISPLAY is set.

* src/key.h: added prototypes for the new functions

* src/main.c (main): call (init|done)_textmode_x11_support

ChangeLog

@@ -1,3 +1,10 @@
+Wed Apr 21 20:44:41 1999  Norbert Warmuth  <nwarmuth@privat.circular.de>
+
+	* configure.in: New option --with-tm-x-support, use MCCFLAGS and 
+	MCLIBS which are specific to the text edition.
+
+	* INSTALL: Added documentation for --with-tm-x-support
+	
 Sun Apr 18 17:51:54 EDT 1999 Gregory McLean <gregm@comstar.net>
 
 	* mc.spec.in : Folded in some changes from the 'offical' rpm 

INSTALL

@@ -162,6 +162,12 @@ installed the gpm package.
      Default is somewhere in your XView binaries directory,
      $OPENWINHOME/bin.
 
+`--with-tm-x-support'
+     This option enables minimal X Window support in the text edition. It 
+     enables MC to query the status of the modifiers CONTROL and SHIFT 
+     when invoked in a terminal emulation under X11. That's necessary 
+     to recognice key combinations like C-HOME or S-Cursor key.
+
 `--without-vfs'
      This option disables the Virtual File System switch code in the
      Midnight Commander and uses the standard file system calls for

acconfig.h

@@ -62,6 +62,9 @@
 /* Is the program using the GPM library? */
 #undef HAVE_LIBGPM
 
+/* Is the text edition compiled with X11 support? */
+#undef HAVE_TEXTMODE_X11_SUPPORT
+
 /* Is the program using the distributed slang library? */
 #undef HAVE_SLANG
 

configure.in

@@ -295,6 +295,27 @@ dnl ])
 
 AC_PATH_XTRA
 
+dnl
+dnl X11 support in the textmode edition. 
+dnl
+
+dnl These variables are only used when building the text edition MC binary
+MCCFLAGS=""
+MCLIBS=""
+AC_SUBST(MCCFLAGS)
+AC_SUBST(MCLIBS)
+
+textmode_x11_support="no"
+AC_ARG_WITH(tm-x-support,
+	[--with-tm-x-support        Add X Window System support to the text edition],
+	if test x$withval = xyes; then
+		MCCFLAGS="$X_CFLAGS"
+		MCLIBS="$X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
+		AC_DEFINE(HAVE_TEXTMODE_X11_SUPPORT)
+		textmode_x11_support="yes"
+	fi
+)
+
 dnl
 dnl Network related functions
 dnl
@@ -696,11 +717,10 @@ AC_ARG_WITH(debug,
 	mem_debug="Janne's MAD library"
 	AC_DEFINE(HAVE_MAD)
 	AC_DEFINE(MCDEBUG)
-	if [ echo `uname -s -r` | grep 'SunOS 4.1' ]
+	if [ echo `uname -s -r` | grep -q 'SunOS 4.1' ]
 	then
     	    CFLAGS="$CFLAGS -Wno-implicit"
-        fi >& /dev/null
-
+        fi
 	if echo "$CFLAGS" | grep -e -g >/dev/null 2>&1; then
 		:
 	else
@@ -721,10 +741,10 @@ AC_ARG_WITH(efence,
 	CFLAGS="$CFLAGS -Wall"
 	AC_DEFINE(MCDEBUG)
 	LIBS="$LIBS -lefence"
-	if [ echo `uname -s -r` | grep 'SunOS 4.1' ]
+	if [ echo `uname -s -r` | grep -q 'SunOS 4.1' ]
 	then
     	    CFLAGS="$CFLAGS -Wno-implicit"
-        fi >& /dev/null
+        fi
 	if echo "$CFLAGS" | grep -e -g >/dev/null 2>&1; then
 		:
 	else
@@ -1247,9 +1267,9 @@ if test x$srcdir != x; then
     fi
 fi
 
-if echo "$screen_manager" | grep "SLang" ; then
+if echo "$screen_manager" | grep -q "SLang" ; then
     screen_manager="${screen_manager}${slang_term}"
-fi >& /dev/null
+fi
 
 echo "
 Configuration:
@@ -1262,6 +1282,7 @@ Configuration:
   Text mode screen manager:   ${screen_manager}
   Install console saver:      ${install_saver}
   Text mode mouse library:    ${mouse_lib}
+  Text mode X11 support:      ${textmode_x11_support}
   Debugger code:              ${mem_debug}
   With subshell support:      ${subshell}
   X11 versions:               ${xvers}

src/ChangeLog

@@ -1,3 +1,20 @@
+Wed Apr 21 20:40:38 1999  Norbert Warmuth  <nwarmuth@privat.circular.de>
+
+	* Makefile.in: use MCCFLAGS and MCLIBS
+
+Wed Apr 21 20:19:45 1999  Norbert Warmuth  <nwarmuth@privat.circular.de>
+
+	* key.c (get_modifier): Query the state of the modifier keys when 
+	running inside a terminal emulation under X11.
+
+	* key.c (init_textmode_x11_support, done_textmode_x11_support): new
+	functions, only used in the text edition. Connect to and disconnect 
+	from the X Server when DISPLAY is set.
+
+	* key.h: added prototypes for the new functions
+
+	* main.c (main): call (init|done)_textmode_x11_support
+
 Sat Apr 17 13:04:19 1999  Norbert Warmuth  <nwarmuth@privat.circular.de>
 
 	* view.c (do_view_init): Enable viewing of files with negative

src/Makefile.in

@@ -5,11 +5,11 @@ SHELL   = @SHELL@
 rootdir = $(srcdir)/..
 @MCFG@@MCF@
 
-CFLAGS   = $(XCFLAGS)
+CFLAGS   = $(XCFLAGS) @MCCFLAGS@
 CPPFLAGS = $(XCPPFLAGS) -DREGEX_MALLOC
 LDFLAGS  = $(XLDFLAGS)
 DEFS     = $(XDEFS)
-LIBS     = $(XLIBS) @TERMNET@ $(XLIB) @TERMNET@
+LIBS     = $(XLIBS) @TERMNET@ $(XLIB) @TERMNET@ @MCLIBS@
 OURLIBS  = @LVFS@ @LSLANG@ @LEDIT@ @LGPM@ @LINTL@
 INSTALL  = @INSTALL@
 

src/features.inc

@@ -14,6 +14,9 @@ char *features =
 #    endif
 #else
     "text mode"
+#ifdef HAVE_TEXTMODE_X11_SUPPORT
+    " with X11 support to read modifiers"
+#endif
 #endif
     ".\n"
 

src/key.c

@@ -44,6 +44,10 @@
 #include "cons.saver.h"
 #include "../vfs/vfs.h"
 
+#if defined (HAVE_TEXTMODE_X11_SUPPORT) && !defined (HAVE_X)
+#include <X11/Xlib.h>
+#endif
+
 #ifdef __linux__
 #    if defined(__GLIBC__) && (__GLIBC__ < 2)
 #        include <linux/termios.h>	/* This is needed for TIOCLINUX */
@@ -226,6 +230,19 @@ define_sequences (key_define_t *kd)
 #endif	
 }
 
+#if defined (HAVE_TEXTMODE_X11_SUPPORT) && !defined (HAVE_X)
+Display *display;
+Window w;
+
+void
+init_textmode_x11_support (void)
+{
+    display = XOpenDisplay (0);
+    if (display)
+        w = DefaultRootWindow (display);
+}
+#endif
+
 /* This has to be called before slang_init or whatever routine
    calls any define_sequence */
 void init_key (void)
@@ -963,15 +980,38 @@ int is_idle (void)
 int
 get_modifier (void)
 {
+#if defined (HAVE_TEXTMODE_X11_SUPPORT) && !defined (HAVE_X)
+    if (display) {
+        Window root, child;
+        int root_x, root_y;
+        int win_x, win_y;
+        unsigned int mask;
+        Bool b;
+	int result = 0;
+
+	b = XQueryPointer(display, w, &root, &child,
+                                  &root_x, &root_y,
+                                  &win_x, &win_y,
+             			  &mask);
+
+	if (mask & ShiftMask)
+	    result |= SHIFT_PRESSED;
+        if (mask & ControlMask)
+	    result |= CONTROL_PRESSED;
+	return result;
+    } else 
+#endif
 #ifdef __linux__
-    unsigned char modifiers;
+    {
+	unsigned char modifiers;
 
-    modifiers = 6;
+	modifiers = 6;
 
-    if (ioctl (0, TIOCLINUX, &modifiers) < 0)
-	return 0;
+	if (ioctl (0, TIOCLINUX, &modifiers) < 0)
+	    return 0;
 
-    return (int) modifiers;
+        return (int) modifiers;
+    }
 #else
     return 0;
 #endif
@@ -989,6 +1029,7 @@ ctrl_pressed ()
 
 #ifdef HAVE_MAD
 #ifndef HAVE_X
+
 void k_dispose (key_def *k)
 {
     if (!k)
@@ -1014,10 +1055,18 @@ void done_key ()
 }
 
 #else
-
 void done_key () 
 {
 }
 
 #endif /* HAVE_X */
 #endif /* HAVE_MAD */
+
+#if defined (HAVE_TEXTMODE_X11_SUPPORT) && !defined (HAVE_X)
+void
+done_textmode_x11_support (void)
+{
+    if (display)
+	XCloseDisplay (display);
+}
+#endif

src/key.h

@@ -4,6 +4,9 @@
 void init_key (void);
 void init_key_input_fd (void);
 void done_key (void);
+void init_textmode_x11_support (void);
+void done_textmode_x11_support (void);
+
 int get_event (Gpm_Event *event, int redo_event, int block);
 int is_idle (void);
 int ctrl_pressed (void);

src/main.c

@@ -2990,6 +2990,10 @@ main (int argc, char *argv [])
        calls any define_sequence */
     init_key ();
 
+#if defined (HAVE_TEXTMODE_X11_SUPPORT) && !defined (HAVE_X)
+    init_textmode_x11_support ();
+#endif
+
 #ifndef HAVE_GNOME
     handle_args (argc, argv);
 #endif
@@ -3170,6 +3174,11 @@ main (int argc, char *argv [])
 #ifdef HAVE_MAD
     done_key ();
 #endif
+
+#if defined (HAVE_TEXTMODE_X11_SUPPORT) && !defined (HAVE_X)
+    done_textmode_x11_support ();
+#endif
+
     mad_finalize (__FILE__, __LINE__);
 #ifdef HAVE_X
     xtoolkit_end ();