ProjectFormatExtensionsRegistry.h

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  ProjectFormatExtensionsRegistry.h
 
  Dmitry Vedenko
 
**********************************************************************/
 
#pragma once
 
#include <mutex>
#include <functional>
 
#include "ClientData.h"
#include "ProjectFormatVersion.h"
 
class AudacityProject;
 
class PROJECT_API ProjectFormatExtensionsRegistry final
   : public ClientData::Base
{
public:
   using ProjectVersionResolver = ProjectFormatVersion (*)(const AudacityProject&);
 
   static const ProjectFormatExtensionsRegistry& Get();
 
   ProjectFormatVersion GetRequiredVersion(const AudacityProject& project) const;
 
   struct PROJECT_API Extension final
   {
      Extension(ProjectVersionResolver resolver);
   };
 
private:
   void Register(ProjectVersionResolver resolver);
 
   std::vector<ProjectVersionResolver> mRegisteredExtensions;
};