TimeScaleBase.h

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  TimeScaleBase.h
 
  Clayton Otey
 
**********************************************************************/
#pragma once
 
#if USE_SBSMS
 
#include "SBSMSBase.h"
#include "ShuttleAutomation.h"
 
class BUILTIN_EFFECTS_API TimeScaleBase : public SBSMSBase
{
public:
   static inline TimeScaleBase*
   FetchParameters(TimeScaleBase& e, EffectSettings&)
   {
      return &e;
   }
   static const ComponentInterfaceSymbol Symbol;
 
   TimeScaleBase();
   virtual ~TimeScaleBase();
 
   // ComponentInterface implementation
 
   ComponentInterfaceSymbol GetSymbol() const override;
   TranslatableString GetDescription() const override;
   ManualPageID ManualPage() const override;
 
   // EffectDefinitionInterface implementation
 
   EffectType GetType() const override;
 
   // Effect implementation
 
   std::any BeginPreview(const EffectSettings& settings) override;
   bool Process(EffectInstance& instance, EffectSettings& settings) override;
   double CalcPreviewInputLength(
      const EffectSettings& settings, double previewLength) const override;
 
protected:
   // TimeScaleBase implementation
 
   static double PercentChangeToRatio(double percentChange);
   static double HalfStepsToPercentChange(double halfSteps);
   static double PercentChangeToHalfSteps(double percentChange);
 
   bool bPreview;
   double previewSelectedDuration;
   SlideType slideTypeRate;
   SlideType slideTypePitch;
   double m_RatePercentChangeStart;
   double m_RatePercentChangeEnd;
   double m_PitchHalfStepsStart;
   double m_PitchHalfStepsEnd;
   double m_PitchPercentChangeStart;
   double m_PitchPercentChangeEnd;
 
   const EffectParameterMethods& Parameters() const override;
 
   static constexpr EffectParameter RatePercentStart {
      &TimeScaleBase::m_RatePercentChangeStart,
      L"RatePercentChangeStart",
      0.0,
      -90.0,
      500,
      1
   };
   static constexpr EffectParameter RatePercentEnd {
      &TimeScaleBase::m_RatePercentChangeEnd,
      L"RatePercentChangeEnd",
      0.0,
      -90.0,
      500,
      1
   };
   static constexpr EffectParameter HalfStepsStart {
      &TimeScaleBase::m_PitchHalfStepsStart,
      L"PitchHalfStepsStart",
      0.0,
      -12.0,
      12.0,
      1
   };
   static constexpr EffectParameter HalfStepsEnd {
      &TimeScaleBase::m_PitchHalfStepsEnd,
      L"PitchHalfStepsEnd",
      0.0,
      -12.0,
      12.0,
      1
   };
   static constexpr EffectParameter PitchPercentStart {
      &TimeScaleBase::m_PitchPercentChangeStart,
      L"PitchPercentChangeStart",
      0.0,
      -50.0,
      100.0,
      1
   };
   static constexpr EffectParameter PitchPercentEnd {
      &TimeScaleBase::m_PitchPercentChangeEnd,
      L"PitchPercentChangeEnd",
      0.0,
      -50.0,
      100.0,
      1
   };
};
 
#endif // USE_SBSMS