revise method

FamilyDefinition revise(FamilyDefinition def)

def with every role's chroma range narrowed to the intent's chroma level (and the base roles quietened for a neutral first colour).

Implementation

FamilyDefinition revise(FamilyDefinition def) {
  final level = intent.effectiveChroma;
  final neutral = intent.colors.isNotEmpty && intent.colors.first.neutral;
  if (level == null && !neutral && !centred) return def;
  ChromaRange accent(ChromaRange r) => _narrow(r, level);
  ChromaRange base(ChromaRange r) =>
      neutral ? _neutral(r) : _narrow(r, level);
  RoleRange role(RoleRange r, ChromaRange Function(ChromaRange) f) =>
      RoleRange(r.lMilli, f(r.chroma));
  RoleRanges ranges(RoleRanges r) => RoleRanges(
    background: role(r.background, base),
    surfaceOffsetMilli: r.surfaceOffsetMilli,
    surfaceChroma: base(r.surfaceChroma),
    digit: role(r.digit, base),
    digitDuotoneChroma: base(r.digitDuotoneChroma),
    function: role(r.function, base),
    operator: role(r.operator, accent),
    operatorMonochromeL: r.operatorMonochromeL,
    equals: role(r.equals, accent),
    labelStartLMilli: r.labelStartLMilli,
    labelMaxChromaMilli: r.labelMaxChromaMilli,
    accentChroma: accent(r.accentChroma),
    minDigitAboveBackgroundMilli: r.minDigitAboveBackgroundMilli,
    minDigitBelowBackgroundMilli: r.minDigitBelowBackgroundMilli,
    minFunctionBelowDigitMilli: r.minFunctionBelowDigitMilli,
    accentCuspOffsetMilli: r.accentCuspOffsetMilli,
    accentCuspClampMilli: r.accentCuspClampMilli,
  );
  return def.revise(dark: ranges(def.dark), light: ranges(def.light));
}