Method Preview

src/prefs/SpectrumPrefs.cpp:428–479

}

void SpectrumPrefs::Preview()
{
   if (!Validate())
      return;

   const bool isOpenPage = this->IsShown();

   ShuttleGui S(this, eIsSavingToPrefs);
   PopulateOrExchange(S);


   mTempSettings.ConvertToActualWindowSizes();

   if (mWc) {
      if (mDefaulted) {
         SpectrogramSettings::Reset(*mWc);
         // ... and so that the vertical scale also defaults:
         SpectrogramBounds::Get(*mWc).SetBounds(-1, -1);
      }
      else {
         SpectrogramSettings &settings = SpectrogramSettings::Own(*mWc);
         SpectrogramBounds::Get(*mWc)
            .SetBounds(mTempSettings.minFreq, mTempSettings.maxFreq);
         settings = mTempSettings;
      }
   }

   if (!mWc || mDefaulted) {
      SpectrogramSettings *const pSettings = &SpectrogramSettings::defaults();
      *pSettings = mTempSettings;
   }
   mTempSettings.ConvertToEnumeratedWindowSizes();

   // Bug 2278
   // This code destroys any Multi-view we had.
   // Commenting it out as it seems not to be needed.
   /*
   if (mWt && isOpenPage) {
      for (auto &&channel : mWt->Channels())
         WaveChannelView::Get(*channel)
            .SetDisplay(WaveChannelViewConstants::Spectrum);
   }
   */

   if (isOpenPage) {
      if ( mProject ) {
         auto &tp = TrackPanel::Get( *mProject );
         tp.UpdateVRulers();
         tp.Refresh(false);
      }
   }
}

bool SpectrumPrefs::Commit()
{