ChordStore.cpp

#include "ChordStore.h"

void ChordStore::updateCurrentChord(WhenNoChordNote::Enum whenNoChordNoteVal,
  WhenSingleChordNote::Enum whenSingleChordNoteVal) {
  if (!mNeedsUpdate)
    return;

  mShouldSilence = false;
  mShouldProcess = true;

  Chord newChord;
  for (Counters::Iterator i(mCounters); i.next();) {
    newChord.add(i.getKey());
  }

  switch (newChord.size()) {
  case 0:
    // No chord notes
    switch (whenNoChordNoteVal) {
    case WhenNoChordNote::LATCH_LAST_CHORD:
      if (mCurrentChord.size() == 0)
        // No last chord known. We silence
        mShouldSilence = true;
      break;
    case WhenNoChordNote::USE_PATTERN_AS_NOTES:
      mShouldProcess = false;
      break;
    case WhenNoChordNote::SILENCE:
      mShouldSilence = true;
      break;
    }
    break;

  case 1:
    // Just 1 chord note
    switch (whenSingleChordNoteVal) {
    case WhenSingleChordNote::TRANSPOSE_LAST_CHORD:
      if (mCurrentChord.size() > 0) {
        int offset = newChord[0] - mCurrentChord[0];
        newChord.clear();
        for (NoteNumber nn : mCurrentChord)
          newChord.add(nn + offset);
        mCurrentChord = newChord;
      }
      else // No last chord known. We silence
        mShouldSilence = true;
      break;
    case WhenSingleChordNote::POWERCHORD:
      newChord.add(newChord[0] + 7);
      mCurrentChord = newChord;
      break;
    case WhenSingleChordNote::USE_AS_IS:
      mCurrentChord = newChord;
      break;
    case WhenSingleChordNote::USE_PATTERN_AS_NOTES:
      mShouldProcess = false;
      break;
    case WhenSingleChordNote::SILENCE:
      mShouldSilence = true;
      break;
    }
    break;

  default:
    // "Normal" case: 2 chords notes or more
    mCurrentChord = newChord;
    break;
  };

  mNeedsUpdate = false;
}

JUCE_IMPLEMENT_SINGLETON(GlobalChordStore);