Method ClipNotes

Source/NoteCanvas.cpp:488–538

}

void NoteCanvas::ClipNotes()
{
   bool anyHighlighted = false;
   float earliest = FLT_MAX;
   float latest = 0;
   std::vector<CanvasElement*> toDelete;
   for (auto* element : mCanvas->GetElements())
   {
      if (element->GetHighlighted())
      {
         anyHighlighted = true;
         if (element->GetStart() < earliest)
            earliest = element->GetStart();
         if (element->GetEnd() > latest)
            latest = element->GetEnd();
      }
      else
      {
         toDelete.push_back(element);
      }
   }

   if (anyHighlighted)
   {
      for (auto* remove : toDelete)
         mCanvas->RemoveElement(remove);

      int earliestMeasure = int(earliest * mNumMeasures);
      int latestMeasure = int(latest * mNumMeasures) + 1;
      int clipStart = 0;
      int clipEnd = mNumMeasures;

      while (earliestMeasure - clipStart >= (clipEnd - clipStart) / 2 ||
             clipEnd - latestMeasure >= (clipEnd - clipStart) / 2)
      {
         if (earliestMeasure - clipStart >= (clipEnd - clipStart) / 2)
            clipStart += (clipEnd - clipStart) / 2;
         if (clipEnd - latestMeasure >= (clipEnd - clipStart) / 2)
            clipEnd -= (clipEnd - clipStart) / 2;
      }

      SetNumMeasures(clipEnd - clipStart);

      ofLog() << earliest << " " << latest << " " << clipStart << " " << clipEnd;

      int shift = -clipStart;

      for (auto* element : mCanvas->GetElements())
         element->SetStart(element->GetStart() + float(shift) / mNumMeasures, true);
   }
}

void NoteCanvas::QuantizeNotes()
{