MeterValueProvider.h

Go to the documentation of this file.

/*  SPDX-License-Identifier: GPL-2.0-or-later */
/*!********************************************************************
 
  Audacity: A Digital Audio Editor
 
  MeterValueProvider.h
 
  Matthieu Hodgkinson
 
**********************************************************************/
#pragma once
 
#include <memory>
 
class DYNAMIC_RANGE_PROCESSOR_API MeterValueProvider
{
public:
   enum class Direction
   {
      Upwards,
      Downwards
   };
 
   static std::unique_ptr<MeterValueProvider> Create(Direction direction);
 
   virtual ~MeterValueProvider() = default;
   virtual void Update(float value, bool alsoFiveSecondMax) = 0;
   virtual float GetGlobalMax() const = 0;
   virtual float GetFiveSecMax() const = 0;
   virtual float GetCurrentMax() const = 0;
   virtual Direction GetDirection() const = 0;
   virtual bool IsInvisible() const = 0;
};