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VxFrmProcRep.h

/*
 *
 *  Copyright (c) 2001, TNO TPD, The Netherlands.
 *  All rights reserved. No part of this software may be handed to or used by persons 
 *  or organisation outside Kenniscentrum Watergraafsmeer (UvA-ISIS, TNO TPD) without 
 *  the written permission of TNO TPD.
 *
 *  Author(s):
 *      Jan Baan (baan@tpd.tno.nl)
 *
 * 
 */

#ifndef VxFrmProcRep_h
#define VxFrmProcRep_h


#include "HxString.h"
#include "VxValue.h"
#include <map>
#include <list>

template<class T>
class VxFrmProcRep{
public:
                    VxFrmProcRep(int size = 20);

    void            setSize(int size);

    bool            exist(int frameNr) const;

    T               get(int frameNr);

    void            push(int frameNr, const T& val);

private:
    int                 _size;
    std::map<int,T>     _data;
    std::list<int>      _frameList;

};

template<class T>
VxFrmProcRep<T>::VxFrmProcRep(int size): _size(size) {
}

template<class T>
inline void
VxFrmProcRep<T>::setSize(int size){
    _size = size;
};


template<class T>
inline bool 
VxFrmProcRep<T>::exist(int frameNr) const {
    if(_size==0) {
        return false;
    }
    return !(_data.find(frameNr)==_data.end());
};

template<class T>
inline T
VxFrmProcRep<T>::get(int frameNr) {
    return _data[frameNr];
}


template<class T>
void 
VxFrmProcRep<T>::push(int frameNr, const T& val) {
    if(_size==0) {
        return;
    }

    _data[frameNr] = val;
    _frameList.push_back(frameNr);

    _frameList.sort();
    while(_frameList.size()>=_size){
        _data.erase(_frameList.front());
        _frameList.pop_front();
    }

}

#endif

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