// -*- mode: c++ -*- 
/* 

    GIFT, a flexible content based image retrieval system.
    Copyright (C) 1998, 1999, 2000 CUI, University of Geneva

    This program 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; either version 2 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
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

/** Author: Wolfgang Müller */

#include "CQueryNormalizer.h"
#include "CWeightingFunction.h"
#include "CWeighter.h"
/** constructor */
CWeighter::CWeighter(CWeightingFunction* inWeightingFunction,
		     CQueryNormalizer* inDocumentNormalizer,
		     CQueryNormalizer* inQueryNormalizer):
  mWeightingFunction(inWeightingFunction),
  mDocumentNormalizer(inDocumentNormalizer),
  mQueryNormalizer(inQueryNormalizer){
};
/** destructor: deletes all content. */
CWeighter::~CWeighter(){
  delete mWeightingFunction;
  delete mDocumentNormalizer;
  delete mQueryNormalizer;
};
/** 
    initialise pointers 
*/
void CWeighter::init(){
  mWeightingFunction->setNormalizers(mQueryNormalizer,
				     mDocumentNormalizer); 
}

/** 
    initialise pointers 
*/
void CWeighter::setAccessor(CAcInvertedFile& inAccessor){
  mWeightingFunction->setAccessor(&inAccessor);
  mQueryNormalizer->setAccessor(&inAccessor);
  mDocumentNormalizer->setAccessor(&inAccessor);
  
  init();
}

/** initialise pointers */
CWeighter* CWeighter::clone()const{

  CWeightingFunction* lWeightingFunction =mWeightingFunction->clone();
  CQueryNormalizer*   lDocumentNormalizer=mDocumentNormalizer->clone();
  CQueryNormalizer*   lQueryNormalizer   =mQueryNormalizer->clone();

  CWeighter* lWeighter=new CWeighter(lWeightingFunction,
				     lQueryNormalizer,
				     lDocumentNormalizer);
  
  lWeighter->init();
  
  return lWeighter;
}

/** */
CWeightingFunction* CWeighter::getWeightingFunction()const{
  return mWeightingFunction;
};
/** */
CQueryNormalizer* CWeighter::getDocumentNormalizer()const{
  return mDocumentNormalizer;
};
/** */
CQueryNormalizer* CWeighter::getQueryNormalizer()const{
  return mQueryNormalizer;
};


