include/vrvGraphics/DtOverlayResourceProvider.h

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/******************************************************************************
** Copyright (c) 2010 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once 

#include <vrvGraphics/vrvGraphics.h>
#include <map>

namespace makVrv
{
   class DtFontManager;
   class DtEffectManager;

   class DT_DLL_VRVGRAPHICS DtOverlayResourceProvider
   {
   public:

      DtOverlayResourceProvider(DtFontManager& fontMan, DtEffectManager& effectMan);

      virtual ~DtOverlayResourceProvider();
           
      typedef void* NativeResourceHandle;

      inline DtFontManager& fontManager() { return myFontManager; }

      inline DtEffectManager& effectManager() { return myEffectManager; }

      virtual unsigned int texture1DId(NativeResourceHandle handle) = 0;
      virtual unsigned int texture2DId(NativeResourceHandle handle) = 0;

      void addGroupRef(unsigned int group);

      void removeGroupRef(unsigned int group);

      unsigned int groupCount();

   protected:
      DtFontManager& myFontManager;
      DtEffectManager& myEffectManager;

      typedef std::map<unsigned int, unsigned int> GroupReferenceMap;
      GroupReferenceMap myGroups;
   };
}