anonymous_namespace{EnvelopeHandle.cpp} Namespace Reference

Functions
void	GetTimeTrackData (const AudacityProject &project, const TimeTrack &tt, double &dBRange, bool &dB, float &zoomMin, float &zoomMax)

Function Documentation

GetTimeTrackData()

void anonymous_namespace{EnvelopeHandle.cpp}::GetTimeTrackData	(	const AudacityProject &	project,
		const TimeTrack &	tt,
		double &	dBRange,
		bool &	dB,
		float &	zoomMin,
		float &	zoomMax
	)

Definition at line 67 of file EnvelopeHandle.cpp.

   {
      const auto &viewInfo = ViewInfo::Get( project );
      dBRange = DecibelScaleCutoff.Read();
      dB = tt.GetDisplayLog();
      zoomMin = tt.GetRangeLower(), zoomMax = tt.GetRangeUpper();
      if (dB) {
         // MB: silly way to undo the work of GetWaveYPos while still getting a logarithmic scale
         zoomMin = LINEAR_TO_DB(std::max(1.0e-7, double(zoomMin))) / dBRange + 1.0;
         zoomMax = LINEAR_TO_DB(std::max(1.0e-7, double(zoomMax))) / dBRange + 1.0;
      }
   }

References DecibelScaleCutoff, ViewInfo::Get(), TimeTrack::GetDisplayLog(), TimeTrack::GetRangeLower(), TimeTrack::GetRangeUpper(), LINEAR_TO_DB, project, and Setting< T >::Read().

Referenced by EnvelopeHandle::Click(), and EnvelopeHandle::TimeTrackHitTest().

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