configsettings.h

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#ifndef CONFIGSETTINGS_H

#define CONFIGSETTINGS_H

#include "configreader.h"
#include "util.h"
#include <limits>

class ConfigSettings : public errut::ErrorBase
{
public:
        ConfigSettings();
        ConfigSettings(const ConfigSettings &src)                                               { m_keyValues = src.m_keyValues; }
        ~ConfigSettings();

        ConfigSettings &operator=(const ConfigSettings &src)                                    { m_keyValues = src.m_keyValues; return *this; }

        bool load(const std::string &fileName);

        void clear();

        void getKeys(std::vector<std::string> &keys) const;

        bool getKeyValue(const std::string &key, std::string &value, const std::vector<std::string> &allowedValues = std::vector<std::string>() );

        // std::numeric_limits<double>::min() is the smallest in absolute value, can't use that here!
        bool getKeyValue(const std::string &key, double &value, double minValue = -std::numeric_limits<double>::max(), 
                         double maxValue = std::numeric_limits<double>::max());

        bool getKeyValue(const std::string &key, int &value, int minValue = std::numeric_limits<int>::min(),
                         int maxValue = std::numeric_limits<int>::max());

        bool getStringKeyValue(const std::string &key, std::string &value, bool &used) const;
        
        void getUnusedKeys(std::vector<std::string> &keys) const;

        void clearUsageFlags();

        void merge(const ConfigSettings &src);
private:
        std::map<std::string, std::pair<std::string, bool> > m_keyValues;
};

#endif // CONFIGSETTINGS_H