performLayout method

@override void performLayout(ChantContext ctxt)

Implementation

@override
void performLayout(ChantContext ctxt) {
  super.performLayout(ctxt);

  final lower = notes[0];
  final upper = notes[1];

  GlyphCode lowerGlyph;

  final lowerStaffPos = lower.staffPosition;
  final upperStaffPos = upper.staffPosition;

  if (lower.shape == NoteShape.oriscus) {
    lowerGlyph = GlyphCode.oriscusAsc;
  } else {
    lowerGlyph = GlyphCode.punctumQuadratum;
  }

  final builder = build(ctxt)..noteAt(lower, lowerGlyph);

  if (upperStaffPos - lowerStaffPos == 1) {
    builder.virgaAt(upper);
  } else if (hasAnyFlag(
    lower.liquescent,
    LiquescentType.large.value | LiquescentType.descending.value,
  )) {
    builder
      ..noteAt(upper, GlyphCode.punctumQuadratumDesLiquescent)
      ..withLineEndingAt(lower);
  } else {
    builder
      ..noteAt(upper, GlyphCode.punctumQuadratum)
      ..withLineEndingAt(lower);
  }

  finishLayout(ctxt);
}