Strategy_ShowEntries_Class.h

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#pragma once
#ifndef __STRATEGY_SHOWENTRIES_H__
#define __STRATEGY_SHOWENTRIES_H__
 
#include "helpers/formatstring.h"
 
#include "Strategy_SortEntries_Classes.h"
 
namespace DesignPatternExamples_cpp
{
 
 
    //########################################################################
    //########################################################################
 
 
    class Strategy_ShowEntries_Class
    {
    private:
        ISortEntries::shared_ptr_t _sortEntries;
 
        bool _reversedSort;
 
    public:
        Strategy_ShowEntries_Class(SortOptions sortOption, bool reversedSort)
        {
            _reversedSort = reversedSort;
            // Create the sorting strategy to use.
            _sortEntries = Strategy_SortEntries_ClassFactory::Create(sortOption, reversedSort);
 
        }
 
        void ShowEntries(const std::vector<EntryInformation>& entries)
        {
            // Make a local copy of the entries so we don't disturb the original list.
            std::vector<EntryInformation> localEntries(entries);
            _sortEntries->Sort(localEntries);
 
            // This is a tabular display, making it easier to follow the sorted data.
            std::cout
                << Helpers::formatstring("    Sort strategy: %s (order = %s)", _sortEntries->ToString().c_str(), _reversedSort ? "Descending" : "Ascending")
                << std::endl;
            std::cout
                << Helpers::formatstring("      %6s %3s %3s", "Name", "Age", "Height")
                << std::endl;
            std::cout
                << Helpers::formatstring("      %6s %3s %3s", "------", "---", "------")
                << std::endl;
            for(EntryInformation& entry : localEntries)
            {
                std::cout
                    << Helpers::formatstring("      %s", entry.ToString().c_str())
                    << std::endl;
            }
        }
    };
 
 
} // end namespace
 
#endif // __STRATEGY_SHOWENTRIES_H__