readerfactory.h

#ifndef READERFACTORY_H
#define READERFACTORY_H
 
#include "reader.h"
#include "readerparams.h"
 
typedef std::function<Reader *(QString path, std::shared_ptr<ReaderParams> params)> AbstractReader;
 
class ReaderFactory
{
public:
 
    static ReaderFactory &instance(){
        static ReaderFactory INSTANCE;
        return INSTANCE;
    }
 
    Reader* createReader(QString path, std::shared_ptr<ReaderParams> params);
 
    bool reg(std::string name, AbstractReader builder);
 
private:
    std::map<std::string, AbstractReader> m_availablerReader;
    ReaderFactory();
 
};
 
template<typename Implementation>
Reader *builder(QString path, std::shared_ptr<ReaderParams> params){
    return new Implementation(path, params);
}
 
#define REGISTER_READER(name, impl) const bool res = ReaderFactory::instance().reg(name, builder<impl>);
 
 
#endif // READERFACTORY_H