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diff --git a/src/SignalHandler.hh b/src/SignalHandler.hh
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+// SignalHandler.hh for Fluxbox Window Manager
+// Copyright (c) 2002 Henrik Kinnunen (fluxgen@linuxmail.org)
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.        IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+// $Id: SignalHandler.hh,v 1.1 2002/08/13 23:57:04 fluxgen Exp $
+
+#ifndef FBTK_SIGNALHANDLER_HH
+#define FBTK_SIGNALHANDLER_HH
+
+#include <signal.h>
+
+namespace FbTk {
+
+/**
+        Handles system signals, singleton.
+*/
+class SignalHandler {
+public:
+        /**
+                Inherit this class to handle signals.
+        */
+        class EventHandler {
+        public:
+                virtual void handleSignal(int signum) = 0;
+        };
+
+        /// get singleton object
+        static SignalHandler *instance();
+        /** 
+                Register an event handler
+                @return true on success else false
+                @param signum signal number
+                @param eh event handler
+                @param oldhandler_ret return handler to old sighandler
+        */
+        bool registerHandler(int signum, EventHandler *eh, EventHandler **oldhandler_ret = 0);
+        /**
+                removes the signum handler
+                @param signum signal number
+        */
+        void removeHandler(int signum);
+private:
+        SignalHandler();
+
+        static void handleSignal(int signum);
+
+        static EventHandler *s_signal_handler[NSIG]; ///< NSIG defined in signal.h
+}; 
+
+}; // end namespace FbTk
+
+#endif // FBTK_SIGNALHANDLER_HH