D:/Documents/mediTEC Projects/CRA/master/include/CRA/LazyLocalizer.h

/*
 *  Copyright (C) 2010 - 2013 Leonid Kostrykin
 *
 *  Chair of Medical Engineering (mediTEC)
 *  RWTH Aachen University
 *  Pauwelsstr. 20
 *  52074 Aachen
 *  Germany
 *
 */

#ifndef LAZYLOCALIZER_H_2521354512
#define LAZYLOCALIZER_H_2521354512

#include "cra_global.h"
#include "Localizer.h"
#include <map>
#include <QTime>

namespace CRA
{



// ----------------------------------------------------------------------------------
// LazyLocalizer
// ----------------------------------------------------------------------------------

class CRA_EXPORT LazyLocalizer : public Localizer
{

public:

    const static unsigned int defaultLazynessThreshold;


    LazyLocalizer( Localizer& service );


    virtual bool fetch( const std::string& port, Transformation& out );


    void setLazynessThreshold( unsigned int lazynessThreshold )
    {
        this->lazynessThreshold = lazynessThreshold;
    }

    
    unsigned int getLazynessThreshold() const
    {
        return lazynessThreshold;
    }


private:

    Localizer& service;


    typedef std::map< std::string, QTime > StringToTime;

    typedef std::map< std::string, Transformation > StringToTransformation;

    typedef std::map< std::string, bool > StringToBoolean;


    StringToTime cacheCurrentness;

    StringToTransformation orientationCache;

    StringToBoolean visibilityCache;


    unsigned int lazynessThreshold;

}; // LazyLocalizer



}  // namespace CRA

#endif // LAZYLOCALIZER_H_2521354512