NumericConverterFormatterContext.h

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/*  SPDX-License-Identifier: GPL-2.0-or-later */
/**********************************************************************
 
 Audacity: A Digital Audio Editor
 
 @file NumericConverterFormatterContext.h
 
 Dmitry Vedenko
 
 **********************************************************************/
#pragma once
 
#include <memory>
#include <optional>
 
class AudacityProject;
 
 
class NUMERIC_FORMATS_API FormatterContext final
{
   explicit FormatterContext(const AudacityProject& project);
   explicit FormatterContext(double sampleRate);
   
public:
   static FormatterContext EmptyContext();
   static FormatterContext ProjectContext(const AudacityProject& project);
   static FormatterContext SampleRateContext(double sampleRate);
 
   FormatterContext() = default;
   FormatterContext(const FormatterContext&) = default;
   FormatterContext(FormatterContext&&) = default;
   FormatterContext& operator=(const FormatterContext&) = default;
   FormatterContext& operator=(FormatterContext&&) = default;
 
   ~FormatterContext();
 
 
   bool HasProject() const;
   std::shared_ptr<const AudacityProject> GetProject() const;
   bool HasSampleRate() const;
   double GetSampleRate(double defaultSampleRate = 44100.0) const;
 
private:
   std::weak_ptr<const AudacityProject> mProject;
   std::optional<double> mProjectRate;
};