visualMetaDataManager.h

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/******************************************************************************
** Copyright (c) 2017 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/



#pragma once

#include <vrfDiGuy/vrfDiGuyDefines.h>
#include <vlutil/vlFilename.h>

#include <map>
#include <set>
#include <string>

class DtRwVisualMetaData;
class DtRwNLengthStringVector;

class DT_DLL_vrfDiGuy DtVisualMetaDataManager
{
public:
   struct Marking
   {
      std::string displayName;
      std::string annotationName;
      std::string linkageName;
      std::map<std::string, int> values;
   };

   typedef std::map<std::string, Marking> Markings;

public:
   DtVisualMetaDataManager();

   DtVisualMetaDataManager(const DtVisualMetaDataManager&);

   virtual ~DtVisualMetaDataManager();

   virtual Markings visualMetaDataFor(const DtFilename& metaDataFile);

   virtual void clear();
      
   virtual std::map<std::string, std::string> markingsFromVisualMetaData(const DtFilename& metaDataFile, const DtRwVisualMetaData&);
      
   static DtVisualMetaDataManager* setInstance(DtVisualMetaDataManager*);

   static DtVisualMetaDataManager* instance();

protected:
   virtual std::vector<std::string> orderFromSelection(const std::map<std::string, int>&, const DtRwNLengthStringVector&) const;

   virtual std::string randomlySelect(const std::vector<std::string>&, double topPercentToChoose, double topRandomPrecent) const;

   virtual std::string weightedExponential(const std::vector<std::string>&) const;

   virtual void* loadMetaFile(const DtFilename&) const;

protected:
   static DtVisualMetaDataManager* theInstance;

   typedef std::map<std::string, Markings> StoredMarkings;
   StoredMarkings myStoredMarkings;
};