From fbba1c150a3b726af9b932b84a9912ac9b802ddc Mon Sep 17 00:00:00 2001
From: Guillaume Cottenceau <gc@mandriva.com>
Date: Tue, 9 Jan 2001 19:40:57 +0000
Subject: - reintegrate into CVS - really fix X11 under X

---
 enable_X11_numlock.c | 125 ++++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 115 insertions(+), 10 deletions(-)

(limited to 'enable_X11_numlock.c')

diff --git a/enable_X11_numlock.c b/enable_X11_numlock.c
index 836a4de..f35decf 100644
--- a/enable_X11_numlock.c
+++ b/enable_X11_numlock.c
@@ -1,13 +1,118 @@
+/****************************************************************************
+
+ NumlockX -  (C) 2000 Lubos Lunak <l.lunak@email.cz>
+ Released under the terms of the GNU General Public License
+
+ main.c  -
+ 
+ $Id$
+
+****************************************************************************/
+
+/* The NumLock state detection code is originally from KLeds by
+   Hans Matzen <hans@tm.informatik.uni-frankfurt.de>  */
+
+#define __main_C
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include <X11/extensions/XTest.h>
 #include <X11/keysym.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define HAS_XKB 1
+#ifdef HAS_XKB
+#include <X11/XKBlib.h>
+#endif
+
+void usage( const char* argv0 )
+    {
+    printf( "NumlockX - (C) 2000 Lubos Lunak <l.lunak@email.cz>\n\n"
+#ifdef HAS_XKB
+        "Usage : %s [on|off|switch]\n"
+        "on     - sets NumLock on in X (default)\n"
+        "off    - sets NumLock off in X\n"
+        "switch - changes NumLock state in X\n"
+#else
+        "Usage : %s\n"
+        "Changes NumLock state in X\n"
+        "( NumLock state detection not available,"
+        " compiled without XKB )\n"
+#endif
+        "\n"
+        , argv0 );
+    }
+
+Display* disp;
+
+#ifdef HAS_XKB
+int get_numlock_state()
+    {
+    unsigned int states;
+    if( XkbGetIndicatorState( disp, XkbUseCoreKbd, &states) != Success )
+        {
+        printf("Error while reading Indicator status\n");
+        XCloseDisplay( disp );
+        exit( 3 );
+        }
+    return states & 0x02; /* NumLock appears to be bit1 */
+    }
+#endif
+
+void change_numlock()
+    {
+    XTestFakeKeyEvent( disp, XKeysymToKeycode( disp, XK_Num_Lock ), True, CurrentTime );
+    XTestFakeKeyEvent( disp, XKeysymToKeycode( disp, XK_Num_Lock ), False, CurrentTime );
+    }
+
+#ifdef HAS_XKB
+void set_on()
+    {
+    if( !get_numlock_state())
+        change_numlock();
+    }
+
+void set_off()
+    {
+    if( get_numlock_state())
+        change_numlock();
+    }
+#endif
 
-int main(int argc, char **argv)
-{
-  Display* disp = XOpenDisplay( NULL );
-  if( disp == NULL )
-    return 1;
-  XTestFakeKeyEvent( disp, XKeysymToKeycode( disp, XK_Num_Lock ), True, CurrentTime );
-  XTestFakeKeyEvent( disp, XKeysymToKeycode( disp, XK_Num_Lock ), False, CurrentTime );
-  XCloseDisplay( disp );
-  return 0;
-}
+int main( int argc, char* argv[] )
+    {
+	if( argc > 2 )
+	    {
+        usage( argv[ 0 ] );
+        return 1;
+        }
+    disp = XOpenDisplay( NULL );
+    if( disp == NULL )
+        {
+        printf( "Error opening display\n" );
+        return 2;
+        }
+    if( argc == 1 )
+#if HAS_XKB
+        set_on();
+    else if( strncmp( argv[ 1 ], "on", 2 ) == 0 )
+        set_on();
+    else if( strncmp( argv[ 1 ], "of", 2 ) == 0 )
+        set_off();
+#else
+        change_numlock(); /* if( argc == 1 ) */
+#endif
+    else if( strncmp( argv[ 1 ], "switch", 6 ) == 0 )
+        change_numlock();
+    else
+        {
+        usage( argv[ 0 ] );
+        XCloseDisplay( disp );
+        return 1;
+        }
+    XCloseDisplay( disp );
+    return 0;
+    }
-- 
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