ossimEpsgDatumFactory.h

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//*************************************************************************************************
//                          OSSIM -- Open Source Software Image Map
//
// License:  See top level LICENSE.txt file.
//
// Author: Oscar Kramer
//
//*************************************************************************************************
//  $Id$

#ifndef ossimEpsgDatumFactory_HEADER
#define ossimEpsgDatumFactory_HEADER 1

#include <ossim/base/ossimDatumFactoryInterface.h>
#include <map>
#include <string>

class ossimDatum;
class ossimString;

//*************************************************************************************************
//*************************************************************************************************
class OSSIM_DLL ossimEpsgDatumFactory : public ossimDatumFactoryInterface
{
public:
   static ossimEpsgDatumFactory* instance();

   virtual ~ossimEpsgDatumFactory();

   virtual const ossimDatum* create(const ossimString &epsg_spec)const;

   virtual const ossimDatum* create(const ossimKeywordlist& kwl, const char *prefix=0)const;

   virtual void getList(std::vector<ossimString>& list)const;
   
   const ossimDatum* create(ossim_uint32 epsg_code)const;

   ossim_uint32 findEpsgCode(const ossimString& alpha_code) const;

   ossimString findAlphaCode(ossim_uint32 epsg_code) const;

protected:
   ossimEpsgDatumFactory();

   std::map<ossim_uint32, std::string> m_epsgToAlphaMap;
   
  // static ossimEpsgDatumFactory* m_instance;
};
#endif