include/FCam/F2/EF232LensDatabase.h

#ifndef EF232LENSDATABASE_H
#define EF232LENSDATABASE_H

#include <set>
#include <map>
#include <string>
#include <iostream>

#define DEFAULT_DATABASE_FILE "EF232LensDatabase.txt"

namespace FCam {

  // All lengths are in mm, apertures are in f-number*10
  struct EF232LensInfo {
    std::string name;
    unsigned int focalLengthMin;
    unsigned int focalLengthMax;

    unsigned int focusDistMin;
    unsigned int apertureMax;

    float focusSpeed;  // diopters/sec

    bool hasImageStabilization;
    bool hasFullTimeManual;

    typedef std::pair<unsigned int, unsigned int> apertureChange;
    typedef std::map<unsigned int, unsigned int>::iterator minApertureListIter;
    typedef std::map<unsigned int, unsigned int>::const_iterator minApertureListCIter;
    // Aperture minimum f-stop assumed to be a piecewise-constant function of
    // focal length
    std::map<unsigned int, unsigned int> minApertureList;

    unsigned int minApertureAt(unsigned int focusDistance) const;
    bool operator<(const EF232LensInfo &rhs) const;

    void print(std::ostream &out) const;

    EF232LensInfo();
  };

  class EF232LensDatabase {
  public:
    EF232LensDatabase(const std::string &srcFile=DEFAULT_DATABASE_FILE);

    const EF232LensInfo* find(unsigned int focalLengthMin, 
            unsigned int focalLengthMax);

    const EF232LensInfo* find(const EF232LensInfo &key);

    const EF232LensInfo* update(const EF232LensInfo &lensInfo);

    void save(const std::string &dstFile=DEFAULT_DATABASE_FILE) const;
  private:
    
    void load(const std::string &srcFile);
    
    static std::set<EF232LensInfo> *db;
  };



}

#endif