featuresColumnPrinter.h

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#pragma once

#include <features/feature.h>
#include <features/featureSet.h>

#include <vector>
#include <iosfwd>
#include <set>

namespace MAKVRinTerra
{
   class DT_DLL_features DtFeaturesColumnPrinter
   {
   public:
      class DT_DLL_features Column
      {
      public:
         Column(unsigned width = 0);

         void setValue(std::string value, unsigned line);
         std::string value(unsigned line) const;

         unsigned width() const { return myWidth; }
         void updateWidth(unsigned);

      private:
         typedef std::vector<std::string> ValueVector;

         unsigned myWidth;
         ValueVector myValues;
      };

      typedef std::set<DtFeature::Key::String> Attributes;

      DtFeaturesColumnPrinter(Attributes = Attributes());

      void run(const DtFeatureSet&, unsigned max = 0);

      void print(std::ostream&);

   private:
      void processFeature(const DtFeature&, unsigned max);
      void processAttribute(const DtFeature::Key&, const DtFeature::Attribute&);

      typedef std::map<DtFeature::Key, Column> ColumnMap;

      unsigned myLineNumber;
      ColumnMap myColumns;
      boost::scoped_ptr<Attributes> myAttribs;
   };
}