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auterman |
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#ifndef COLUMN_H
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#define COLUMN_H
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#include <string>
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#include <vector>
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#include <sstream>
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#include <iostream>
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//virtual base class
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class TColumnBase
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{
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public:
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TColumnBase():_header(""){};
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TColumnBase(std::string header):_header(header){};
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virtual ~TColumnBase(){};
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std::string GetHeader(){return _header;};
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void SetHeader(const std::string & header){_header=header;};
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virtual void Add(const void * ){};
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virtual void SetPrecision(unsigned p){};
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virtual unsigned Size(){return 0;};
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virtual std::string Str(const unsigned i){return "";};
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virtual unsigned Width(){return 10;};
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protected:
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std::string _header;
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};
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//A templated class for each column of class table
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template<typename T>
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class TColumn : public TColumnBase {
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public:
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TColumn(std::string header){SetHeader(header);_precision=1;};
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virtual ~TColumn() {
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for (typename std::vector<const T*>::iterator it=_field.begin(); it!=_field.end(); ++it) delete *it;
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_field.clear();}
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virtual void SetPrecision(unsigned p){_precision=p;};
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virtual void Add(const void * f){ _field.push_back( static_cast<const T*>(f));};
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void Set(unsigned i, T f){_field.at(i)=f;};
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T At(const unsigned i){return _field.at(i);};
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virtual unsigned Size(){return _field.size();};
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std::string Str(const unsigned i){
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if (i<0||i>=_field.size()) return "";
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std::stringstream ss;
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ss<<std::fixed << std::setprecision(_precision)<<std::setw(_width)<< *_field[i];
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return ss.str();
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};
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virtual unsigned Width(){
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std::stringstream ss;
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ss << _header;
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unsigned max=ss.str().size();
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for (typename std::vector<const T*>::const_iterator it=_field.begin();it!=_field.end();++it){
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std::stringstream ss;
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ss <<std::fixed << std::setprecision(_precision) << **it;
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if (ss.str().size()>max) max=ss.str().size();
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}
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_width=max;
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return max;
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}
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protected:
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std::vector<const T*> _field;
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unsigned _width;
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unsigned _precision;
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};
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#endif
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