Function isSpectralSelectionView

src/tracks/ui/SelectHandle.cpp:117–123

This returns true if we're a spectral editing track.

   // This returns true if we're a spectral editing track.
   inline bool isSpectralSelectionView(const ChannelView &channelView) {
      const WaveChannel *pChannel{};
      return
        channelView.IsSpectral() &&
        (pChannel = channelView.FindChannel<const WaveChannel>().get()) &&
        SpectrogramSettings::Get(*pChannel).SpectralSelectionEnabled();
   }

   enum SelectionBoundary {
      SBNone,