/*
    Copyright (C) 2012 Bartosz Broda, Jacek Bochenek, Łukasz Biłeńkij, 
    Damian Jaworski, Wojciech Mazur, Dominik Piasecki, Maciej Piasecki, 
    Radosław Ramocki
    
    This program is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at your option)
any later version.

    This program 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 LICENSE and COPYING files for more details.
*/

#pragma once
#include "../comparator_stdheaders.h"
#include "WeightFeature.h"

namespace smartcomparator
{

	namespace weights
	{
		class SMART_COMPARATOR_API MatrixTransformer
		{
		public:
			/**
			 * Class used for transforming the matrix using given weight function.
			 */ 
			MatrixTransformer( boost::shared_ptr<WeightFeature> weight);
			virtual ~MatrixTransformer(void);

			/**
			 * Preform the transformation. Transformation is done based on rows in case of
			 * having CRS matrix or is preforemed on columns if CRS == NULL.
			 *
			 * This function does not updated features in matrix!
			 */ 
			void Transform();

			void SetWeightFunction(boost::shared_ptr<WeightFeature> weight);

		protected:
			virtual void CCSBasedTransform();
			virtual void CRSBasedTransform();
			boost::shared_ptr<WeightFeature> *m_pWeight;
			double m_dLogInterval;
		};

		void WeightCRS(Matrices::CRSMatrix* crs, smartcomparator::weights::WeightFeaturePtr m_pWeight);
	}
}
