LimiterEditor.cpp

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/*  SPDX-License-Identifier: GPL-2.0-or-later */
/*!********************************************************************
 
  Audacity: A Digital Audio Editor
 
  LimiterEditor.cpp
 
  Matthieu Hodgkinson
 
**********************************************************************/
#include "LimiterEditor.h"
#include "ShuttleGui.h"
 
namespace
{
struct ParameterWrapper : public DynamicRangeProcessorParameter
{
   ParameterWrapper(const LimiterParameter& parameter)
       : mParameter { parameter }
   {
   }
 
   double Min() const override
   {
      return mParameter.min / mParameter.scale;
   }
 
   double Max() const override
   {
      return mParameter.max / mParameter.scale;
   }
 
   double SliderMin() const override
   {
      return mParameter.min;
   }
 
   double SliderMax() const override
   {
      return mParameter.max;
   }
 
   double TextToSlider() const override
   {
      return mParameter.scale;
   }
 
   const LimiterParameter& mParameter;
};
} // namespace
 
LimiterEditor::LimiterEditor(
   wxWindow* parent, CompressorInstance& instance, bool isRealtime,
   const EffectUIServices& services, EffectSettingsAccess& access,
   LimiterSettings settings)
    : DynamicRangeProcessorEditor { parent, instance, isRealtime, services,
                                    access }
    , mSettings { std::move(settings) }
{
   Initialize({ { mSettings.thresholdDb, limiterThresholdDbAttributes,
                  std::make_shared<ParameterWrapper>(thresholdDb),
                  ControllerCategory::CompressionCurve },
                { mSettings.makeupTargetDb, limiterMakeupTargetDbAttributes,
                  std::make_shared<ParameterWrapper>(makeupTargetDb),
                  ControllerCategory::CompressionCurve },
                { mSettings.kneeWidthDb, kneeWidthDbAttributes,
                  std::make_shared<ParameterWrapper>(kneeWidthDb),
                  ControllerCategory::CompressionCurve },
                { mSettings.lookaheadMs, lookaheadMsAttributes,
                  std::make_shared<ParameterWrapper>(lookaheadMs),
                  ControllerCategory::TimeSmoothing },
                { mSettings.releaseMs, releaseMsAttributes,
                  std::make_shared<ParameterWrapper>(releaseMs),
                  ControllerCategory::TimeSmoothing } });
}