/**
 * $Id$
 * $Revision$
 * $Author$
 * $Date$
 *
 * Author: cob
 *
 * This file is part of The iWear Framework.
 * In particular this file is part of the Framework Output
 *
 * The iWear Framework 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 as in version 2 of the License.

 * 
 * The iWear Framework 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
 * The iWear Framework; if not, write to the Free Software Foundation, Inc., 59
 * Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef __SIGNALDATAFUNCTORPARAMETER_H
#define __SIGNALDATAFUNCTORPARAMETER_H

#ifndef __OUTPUTDATAFUNCTORPARAMETER_H
#include <iwear_output/outputdatafunctorparameter.h>
#endif

#ifndef __SIGNALDATA_H
#include <iwear_output/signaldata.h>
#endif

namespace iwear{
namespace output{

/**
 * Parameter for the SignalDataFunctors containing the type of the change.
 */
class SignalDataFunctorParameter : public OutputDataFunctorParameter
{

public:
    
    /**
     * Constructor for the SignalDataFunctorParameter.
     * @todo consider parameters?
     */
    SignalDataFunctorParameter(const SignalDataChange&);

    /**
     * Destructor for the SignalDataFunctorParameter.
     */
    virtual ~SignalDataFunctorParameter(void);

    /**
     * What kind of change has happened to the data.
     *
     * @return the kind of change that has happened to the data.
     *
     * @see SignalDataChange in file signaldata.h
     */
    const SignalDataChange get_signal_data_change(void) const{
	return signal_data_change;
    }
protected:

private:
    /**
     * What has changed in the OutputData.
     *
     * @see SignalDataChange in file signaldata.h
     */
    SignalDataChange signal_data_change;

};

} // namespace output
} // namespace iwear

#endif