ColumnCollection.h

#ifndef _COLUMNCOLLECTION_H_
#define _COLUMNCOLLECTION_H_
#include <string>
#include <vector>
#include <fstream>
#include <iostream>


#include "Helper.h"
#include "global.h"

#define COLUMN_FILE "columns.cfg"
#define CFG_SEPARATOR '|'

struct singleColumn
{
    std::string alias;
    std::string expression;
    bool shown;

    singleColumn();
    singleColumn(std::string exp)
    {
        alias = validateFilename(exp);
        expression = exp;
        shown = true;
    }
    singleColumn(bool _shown, std::string exp, std::string _alias)
    {
        shown = _shown;
        expression = exp;
        alias = _alias;
    }
            
};

class ColumnCollection
 {
 private:
     

  public:
     ColumnCollection();
     ColumnCollection(std::vector<std::string> columns);
     ~ColumnCollection();

    std::vector<singleColumn*> columns;
    
    // when considerShown is true, the expression/alias from the column marked
    // as not shown is not included
    std::vector<std::string> getExpressions(bool considerShown = false);
    std::vector<std::string> getAliases(bool considerShown = false);
    int size(bool considerShown = false);
    void addColumn (singleColumn * c);
    void removeColumn (int index);
    
    void print();
    void saveToFile();
    static ColumnCollection* readFromFile();
//    ColumnCollection* clone();
     
 };



#endif /* _COLUMNCOLLECTION_H_ */