CallbackNode.h

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/* ========================================================================
 * Copyright (c) 2006,
 * Institute for Computer Graphics and Vision
 * Graz University of Technology
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * Neither the name of the Graz University of Technology nor the names of
 * its contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ========================================================================
 * PROJECT: OpenTracker
 * ======================================================================== */
/* ======================================================================= */

#ifndef _CALLBACKNODE_H
#define _CALLBACKNODE_H

#include "../OpenTracker.h"
#include <ace/Synch.h>

#ifndef OT_NO_CALLBACKMODULE_SUPPORT

#include <OpenTracker/common/CallbackModule.h>
namespace ot {
class CallbackNode;
}



namespace ot {

    class CallbackModule;
    class CallbackNode;

    class OPENTRACKER_API CallbackNode : public Node
    {
        typedef ACE_Mutex mutex_type;

        // Members
    public:
        std::string name;
        OTCallbackFunction * function;
        void * data;
        Event event;

        mutex_type eventmutex;

        CallbackModule * cbmodule;

        // Methods
    protected:
        
        CallbackNode( const std::string & name_ ) :
            Node(),
            name( name_ ),
            function( NULL ),
            data( NULL ),
            cbmodule( NULL )
        {}

    public:
        virtual int isEventGenerator()
        {
            return 1;
        }

        virtual void onEventGenerated( Event& event, Node& generator);

        const std::string & getCallbackName(void) const
        {
            return CallbackNode::name;
        };

        friend class CallbackModule;
    };

} // namespace ot


#endif //OT_NO_CALLBACKMODULE_SUPPORT


#endif

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