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// ================================================================================================
// 
// This file is part of the CAMPVis Software Framework.
// 
// If not explicitly stated otherwise: Copyright (C) 2012-2014, all rights reserved,
//      Christian Schulte zu Berge <christian.szb@in.tum.de>
//      Chair for Computer Aided Medical Procedures
//      Technische Universitaet Muenchen
//      Boltzmannstr. 3, 85748 Garching b. Muenchen, Germany
// 
// For a full list of authors and contributors, please refer to the file "AUTHORS.txt".
// 
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 
// except in compliance with the License. You may obtain a copy of the License at
// 
// http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software distributed under the 
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
// either express or implied. See the License for the specific language governing permissions 
// and limitations under the License.
// 
// ================================================================================================

#ifndef POSITIONDATA_H__
#define POSITIONDATA_H__

#include "tgt/vector.h"

#include "core/datastructures/abstractdata.h"

namespace campvis {

    /**
     * Abstract base class for data handled by a DataHandle and stored in a DataContainer.
     * 
     * \todo 
     */
    class PositionData : public AbstractData {
    public:
        /**
         * Constructor, Creates a new light source.
         * \param   position       The initial position
         * \param   quaternion     The initial quaternion/orientation
         */
        explicit PositionData(const tgt::vec3& position, const tgt::vec4& quaternion) 
            : _position(position)
            , _quaternion(quaternion) 
        { };

        /**
         * Virtual destructor
         */
        virtual ~PositionData() {};

        /// \see AbstractData::clone()
        virtual PositionData* clone() const {
            return new PositionData(*this);
        };

        /// \see AbstractData::getLocalMemoryFootprint()
        virtual size_t getLocalMemoryFootprint() const {
            return sizeof(PositionData);
        };
        /// \see AbstractData::getVideoMemoryFootprint()
        virtual size_t getVideoMemoryFootprint() const {
            return 0;
        };

        /**
        * Gets the quaternion
        * \return _quaternion
        **/
        tgt::vec4 getQuaternion() const { return _quaternion; }

        /**
        * Sets the quaternion.
        * \param val New quaternion matrix
        **/
        void setQuaternion(tgt::vec4 val) { _quaternion = val; }
        
        /**
        * Gets the position
        * \return _position
        **/
        tgt::vec3 getPosition() const { return _position; }

        /**
        * Sets the position.
        * \param val New position matrix
        **/
        void setPosition(tgt::vec3 val) { _position = val; }
        

    protected:
        tgt::vec3 _position;                ///< the position
        tgt::vec4 _quaternion;              ///< The orientation quaternion
    };

}

#endif // POSITION_H__