anonymous_namespace{BeatsSnapFunctions.cpp} Namespace Reference

Functions
double	SnapToBar (const AudacityProject &project)
MultiplierFunctor	SnapToBeat (int divisor)
MultiplierFunctor	SnapToTriplets (int divisor)

Variables
SnapRegistryItemRegistrator	beats

Detailed Description

---

Audacity: A Digital Audio Editor

BeatsSnapFunctions.cpp

Dmitry Vedenko

Function Documentation

SnapToBar()

double anonymous_namespace{BeatsSnapFunctions.cpp}::SnapToBar

(

const AudacityProject &

project

)

Definition at line 24 of file BeatsSnapFunctions.cpp.

{
   auto& timeSignature = ProjectTimeSignature::Get(project);
   
   const auto barDuration = timeSignature.GetBarDuration();
   const auto multiplier = 1 / barDuration;
 
   return multiplier;
}

References ProjectTimeSignature::Get(), and project.

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SnapToBeat()

MultiplierFunctor anonymous_namespace{BeatsSnapFunctions.cpp}::SnapToBeat

(

int

divisor

)

Definition at line 34 of file BeatsSnapFunctions.cpp.

{
   return [divisor](const AudacityProject& project)
   {
      auto& timeSignature = ProjectTimeSignature::Get(project);
 
      const auto quarterDuration = timeSignature.GetQuarterDuration();
      // DV: It was decided that for the time being,
      // BPM sets the duration for quarter notes.
      // For this reason, `cfg.timeSignature.second` is ignored
      const auto fracDuration = quarterDuration * 4.0 / divisor;
      const auto multiplier = 1.0 / fracDuration;
 
      return multiplier;
   };
}

References ProjectTimeSignature::Get(), and project.

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SnapToTriplets()

MultiplierFunctor anonymous_namespace{BeatsSnapFunctions.cpp}::SnapToTriplets

(

int

divisor

)

Definition at line 51 of file BeatsSnapFunctions.cpp.

{
   return [divisor](const AudacityProject& project)
   {
      auto& timeSignature = ProjectTimeSignature::Get(project);
 
      const auto quarterDuration = 60.0 / timeSignature.GetTempo();
      const auto tripletDivisor = 3 * (divisor / 2);
      const auto fracDuration = quarterDuration * 4.0 / tripletDivisor;
      const auto multiplier = 1.0 / fracDuration;
 
      return multiplier;
   };
}

References ProjectTimeSignature::Get(), and project.

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Variable Documentation

beats

SnapRegistryItemRegistrator anonymous_namespace{BeatsSnapFunctions.cpp}::beats

Definition at line 66 of file BeatsSnapFunctions.cpp.