cDomainNaturalNumberBit.h

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/**
 * @class cDomainNaturalNumber
 * file name: cDomainNaturalNumber.h
 * @author Betti Oesterholz
 * @date 13.05.2009
 * @mail webmaster@BioKom.info
 *
 * System: C++
 *
 * This class represents a domain for natural numbers.
 * Copyright (C) @c LGPL3 2009 Betti Oesterholz
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License (LGPL) as
 * published by the Free Software Foundation, either version 3 of the
 * License, or 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 *
 * This file contains the class for natural number Fib -domains which
 * domain is given by the number of bits used to save them.
 * If B is the number of Bits for the domain {0, ..., 2^B-1} is the 
 * unscaled domain and if dScalingFactor is the scaling factor
 * { 0*dScalingFactor, ..., (2^iBits-1) * dScalingFactor} is the scaled
 * domain.
 *
 */
/*
History:
13.05.2009  Oesterholz  created
01.12.2011  Oesterholz  method isInBoundaries() added
*/

#ifndef ___C_DOMAIN_NATURAL_NUMBER_BIT_H__
#define ___C_DOMAIN_NATURAL_NUMBER_BIT_H__


#include "version.h"

#include "cDomainIntegerBasis.h"


namespace fib{

class cDomainIntegerBit;//cyclic dependencie


class cDomainNaturalNumberBit: public cDomainIntegerBasis{
protected:

friend class cDomainIntegerBit;

   /**
    * The number of bits for the natural numbers in this domain.
    */
   unsignedIntFib iBitsForDomainNumbers;
   
public:

   /**
    * The constructor for unscaled natural numer domains.
    * If iBits is the number of Bits for the domain {0, ..., 2^iBits-1} is
    * the domain.
    *
    * @param iBits bits to use for numbers of the domain
    */
   cDomainNaturalNumberBit( unsignedIntFib iBits );


   /**
    * The constructor for scaled natural numer domains.
    * If iBits is the number of Bits for the domain {0, ..., 2^iBits-1} is
    * the unscaled domain and { 0*dScalingFactor, ..., (2^iBits-1) *
    * dScalingFactor} the scaled domain.
    *
    * @param iBits bits to use for numbers of the domain
    * @param dScalingFactor the scaling factor of the domain
    *    the scaling factor has to be greater 0.0
    */
   cDomainNaturalNumberBit( unsignedIntFib iBits, doubleFib dScalingFactor );

   /**
    * The copyconstructor for natural numer domains.
    *
    * @param domain the  natural number domain to copy
    */
   cDomainNaturalNumberBit( const cDomainNaturalNumberBit &domain );

   /**
    * @return the type of the domain as an string
    */
   virtual string getType() const;
   
   /**
    * This method checks if the given value is an element of the
    * domain. If the value dValue is an element of the
    * domain true is returned, else false.
    *
    * @param dValue the value for which to check, if it is an element of
    *    the domain
    * @return if the value dValue is an element of the domain true
    *    true is returned, else false
    */
   virtual bool isElement( const doubleFib dValue ) const;

   /**
    * This method checks if the given value is inside the domain
    * boundaries. If the value dValue is inside of the domain boundaries
    * true is returned, else false.
    * A value is inside of the vector domain boudaries, if it is greater
    * than the minimum value minus the scaling factor and lower than the
    * maximum value plus the scaling factor.
    *
    * @param dValue the value for which to check, if it is inside of
    *    the domain boundaries
    * @return if the vector dValue is inside of the domain boundaries
    *    true is returned, else false
    */
   virtual bool isInBoundaries( const doubleFib dValue ) const;


   /**
    * This method round the given value dValue to an value in the
    * domain of this object.
    * The rounded vale will be the value with the minimal distance to the
    * given value dValue. If more of these exists the smales will be
    * returned.
    *
    * @param dValue the value which should be rounded
    * @return the rounded value of dValue
    */
   virtual doubleFib round( const doubleFib dValue ) const;


   /**
    * This method returns the biggest value in the domain.
    *
    * @return the biggest value in the domain
    */
   doubleFib getMaximum( ) const ;


   /**
    * This method returns the smalest value in the domain.
    *
    * @return the smalest value in the domain
    */
   virtual doubleFib getMinimum( ) const;


   /**
    * This method returns the nullvalue of the domain.
    * The nullvalue is the value 0 rounded to an value in the 
    * domain.
    *
    * @return the nullvalue of the domain
    */
   virtual doubleFib getNull( ) const;


   /**
    * This method checks if the given value is an element of the
    * unscaled domain. If the value lValue is an element of the
    * unscaled domain true is returned, else false.
    *
    * @param lValue the value for which to check, if it is an element of
    *    the unscaled domain
    * @return if the value dValue is an element of the unscaled
    *    domain true true is returned, else false
    */
   virtual bool isUnscaledElement( const longFib lValue ) const;


   /**
    * This method round the given value dValue to an value in the
    * unscaled domain of this object.
    * The rounded vale will be the unscaled value with the minimal
    * distance to the given value lValue. If more of these exists the 
    * smales will be returned.
    *
    * @param lValue the value which should be rounded
    * @return the rounded unscaled value of lValue
    */
   virtual longFib roundUnscaled( const longFib lValue ) const;


   /**
    * This method returns the biggest value in the unscaled domain.
    *
    * @return the biggest value in the unscaled domain
    */
   virtual longFib getMaximumUnscaled( ) const;


   /**
    * This method returns the smalest value in the unscaled domain.
    *
    * @return the smalest value in the unscaled domain
    */
   virtual longFib getMinimumUnscaled( ) const;


   /**
    * This method returns the nullvalue of the unscaled domain.
    * The nullvalue is the value 0 rounded to an value in the unscaled
    * domain.
    *
    * @return the nullvalue of the domain
    */
   virtual longFib getNullUnscaled( ) const;

   /**
    * This Method clones this object.
    *
    * @return a clone of this object
    */
   virtual cDomainNaturalNumberBit *clone() const;


   /**
    * This Method checks if the given domain is equal to this domain.
    *
    * @param domain the domain which should be equal to this domain
    * @return true if the given domain is equal to this domain, else false
    */
   virtual bool operator==( const cDomain &domain ) const;


   /**
    * This method evaluades the size of the domain in bits in the
    * compressed file form.
    *
    * @see store()
    * @return the size of the domain in bits in the compressed form
    */
   virtual unsignedIntFib getCompressedSize() const;

   /**
    * This method evaluades the size of values in the domain in bits in
    * the compressed file form.
    *
    * @see store()
    * @return the size of the domain in bits in the compressed form
    */
   virtual unsignedIntFib getCompressedSizeForValue() const;

   /**
    * This method stores this domain in the XML -format into the
    * given stream.
    *
    * @param ostream the stream where domains should be stored to
    * @return true if this domain are stored, else false
    */
   virtual bool storeXml( ostream & ostream ) const;
   
   /**
    * This method restores a domain in the XML -format from an TinyXml element.
    *
    * @param pXmlNode a pointer to the TinyXml node wher the domain is stored in
    * @return an integervalue with the errorvalue
    *    possible errorvalues are:
    *       - 0  loading successful
    *       - -1 loading error, invalid pXmlElement
    *       - -2 loading error, invalid data in pXmlElement
    *       - 1 loading warning, invalid data in pXmlElement, error could be corrected
    *       - 2 loading warning, invalid data in pXmlElement, maybe the loaded
    *          object is wrong
    */
   virtual intFib restoreXml( const TiXmlElement * pXmlElement ) ;

   /**
    * This method stores this domain in the compressed fib -format
    * into the given stream.
    * It is needed because the stream can yust store byts but the size of
    * fib -elements can be any number of bits. Because of that ther have to
    * be a possibility to exchange the missing bits betwean the fib -elements.
    *
    * @see cFibElement::store
    * @param stream the stream where this domain should be stored to
    * @param cRestBits the not yet writen bits which should be stored
    * @param uiRestBitPosition the number of bits in the cRestBits which
    *    should be writen respectively containing valid information
    * @return true if the domain is stored, else false
    */
   virtual bool store( ostream & stream, char & cRestBits,
      unsigned char & uiRestBitPosition ) const;
   
   /**
    * This method restores a domain from a bitstream, wher it is
    * stored in the compressed fib -format.
    *
    * @see store
    * @param iBitStream the stream where the domain is stored in,
    *    because the stream is an cReadBits, any number of bits can be
    *    readed from it
    * @return an integervalue with the errorvalue
    *    possible errorvalues are:
    *       - 0  loading successful
    *       - -1 loading error, invalid pXmlElement
    *       - -2 loading error, invalid data in pXmlElement
    *       - 1 loading warning, invalid data in pXmlElement, error could be corrected
    *       - 2 loading warning, invalid data in pXmlElement, maybe the loaded
    *          object is wrong
    */
   virtual intFib restore( cReadBits & iBitStream );

   /**
    * This method stores the given value dValue in the compressed
    * fib -format for the domain into the given stream.
    * It is needed because the stream can yust store byts but the size of
    * fib -elements can be any number of bits. Because of that ther have to
    * be a possibility to exchange the missing bits betwean the fib -elements.
    *
    * @see cFibElement::store
    * @param dValue the value to store
    * @param stream the stream where this domain should be stored to
    * @param cRestBits the not yet writen bits which should be stored
    * @param uiRestBitPosition the number of bits in the cRestBits which
    *    should be writen respectively containing valid information
    * @return true if the domain is stored, else false
    */
   virtual bool storeValue( doubleFib dValue, ostream & stream,
      char & cRestBits, unsigned char & uiRestBitPosition ) const;

   /**
    * This method stores the given unscaled value lValue in the compressed
    * fib -format for the domain into the given stream.
    * It is needed because the stream can yust store byts but the size of
    * fib -elements can be any number of bits. Because of that ther have to
    * be a possibility to exchange the missing bits betwean the fib -elements.
    *
    * @see cFibElement::store
    * @param lValue the value to store
    * @param stream the stream where this domain should be stored to
    * @param cRestBits the not yet writen bits which should be stored
    * @param uiRestBitPosition the number of bits in the cRestBits which
    *    should be writen respectively containing valid information
    * @return true if the domain is stored, else false
    */
   virtual bool storeUnscaledValue( longFib lValue, ostream & stream,
      char & cRestBits, unsigned char & uiRestBitPosition ) const;

   /**
    * This method restores the a unscaled integer value of the domain from
    * the stream iBitStream, wher it is stored in the compressed fib -format.
    *
    * @see storeValue
    * @see restoreValue
    * @see storeUnscaledValue
    * @see cFibElement::restore
    * @param iBitStream the stream where this value is stored to in,
    *    because this stream is an cReadBits, any number of bits can be
    *    readed from it
    * @param outStatus An reference to an integervalue where the errorvalue
    *    can be stored to. If the pointer is NULL no errorvalue will be
    *    given back.
    *    possible errorvalues are:
    *       - 0  loading successful
    *       - -1 loading error, invalid stream
    *       - -2 loading error, invalid data in stream
    *       - 1 loading warning, invalid data in stream, error could be corrected
    *       - 2 loading warning, invalid data in stream, maybe the loaded
    *          object is wrong
    * @return the unscaled restored value
    */
   virtual longFib restoreIntegerValue( cReadBits & iBitStream, intFib & outStatus ) const;

};//end class cDomainNaturalNumberBit


}//end namespace fib

#endif