// -*- 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

*/
/***************************************
*
* CRelevanceLevel
*
****************************************
*
* modification history:
*
* HM 090399 created the documentation
*
****************************************
*
* compiler defines used:
*
*
****************************************/
#include <cstdio>
#include "CRelevanceLevel.h"



/***************************************
*
* Constructor
*
****************************************
*
* modification history
*
* 
*
****************************************/
/* Constructor with no inputs */
CRelevanceLevel::CRelevanceLevel():
  mURL("No URL!"),
  mRelevanceLevel(0)
{};



/***************************************
*
* Constructor
*
****************************************
*
* modification history
*
* 
*
****************************************/
/* constructor with input */
CRelevanceLevel::CRelevanceLevel(const string& inURL,
				 double inRelevanceLevel):
  mURL(inURL),
  mRelevanceLevel(inRelevanceLevel){
};



/***************************************
*
* Constructor
*
****************************************
*
* modification history
*
* 
*
****************************************/
/* constructur with input */
CRelevanceLevel::CRelevanceLevel(const CRelevanceLevel& inElement):
  mURL(inElement.mURL),
  mRelevanceLevel(inElement.mRelevanceLevel)
{
};



/***************************************
*
* input
*
****************************************
*
* modification history
*
* 
*
****************************************/
/* reads URL and relevance level from a file */
bool CRelevanceLevel::input(istream& inStream){
  inStream >> mURL
	   >> mRelevanceLevel;
};



/***************************************
*
* output
*
****************************************
*
* modification history
*
* 
*
****************************************/
/* writes URL and relevance level to a file */
bool CRelevanceLevel::output(ostream& outStream)const{
  outStream << mURL << " " << mRelevanceLevel << endl;
};



/***************************************
*
* outputHTML
*
****************************************
*
* modification history
*
* 
*
****************************************/
/* writes the output data as an html file */
bool CRelevanceLevel::outputHTML(ostream& outStream)const{
  outStream << "<IMG SRC=\"" 
	    << mURL 
	    << "\">" 
	    << endl
	    << "<CENTER>"
	    << endl
	    << mRelevanceLevel 
	    << endl
	    << "</CENTER>"
	    << endl;
};



/***************************************
*
* getURL
*
****************************************
*
* modification history
*
* 
*
****************************************/
/* returns the URL */
string CRelevanceLevel::getURL()const{
  return mURL;
};



/***************************************
*
* getRelevanceLevel
*
****************************************
*
* modification history
*
* 
*
****************************************/
/* returns only the relevance level */
double CRelevanceLevel::getRelevanceLevel()const{
  return mRelevanceLevel;
};



/***************************************
*
* setRelevanceLevel
*
****************************************
*
* modification history
*
* 
*
****************************************/
/* sets the relevance level directly */
void CRelevanceLevel::setRelevanceLevel(const double inRelevanceLevel){
  mRelevanceLevel=
    inRelevanceLevel;
};



/***************************************
*
* adjustRelevanceLevel - adds another relevance level to the current
*
****************************************
*
* modification history
*
* 
*
****************************************/
void CRelevanceLevel::adjustRelevanceLevel(const double inRelevanceLevel){
  mRelevanceLevel+=
    inRelevanceLevel;
};



/***************************************
*
* divideRelevanceLevelBy
*
****************************************
*
* modification history
*
* 
*
****************************************/
void CRelevanceLevel::divideRelevanceLevelBy(const double inDivisor)
{
  mRelevanceLevel/=
    inDivisor;
};

string CRelevanceLevel::toXML()const{

  char lBuffer[20];
  sprintf(lBuffer,"%lf",mRelevanceLevel);

  return string(string("<sresultelement userrelevance=\"0.5\" "
		       "calculatedsimilarity=\"")+string(lBuffer)+"\" "
		+string("imagelocation=\"")+mURL+string("\"/>\n"));
};

/***************************************
*
* <
*
****************************************
*
* modification history
*
* 
*
****************************************/
bool operator<(const CRelevanceLevel& l,const CRelevanceLevel& t)
{
  return l.getRelevanceLevel()<t.getRelevanceLevel();
};


bool CSortByURL_RL::operator()(const CRelevanceLevel& l,
			       const CRelevanceLevel& t)const{
  return 
    l.getURL()
    <
    t.getURL();
};
