get method

int get(int tone)

Returns the ARGB representation of an HCT color.

If the class was instantiated from _hue and _chroma, will return the color with corresponding tone. If the class was instantiated from a fixed-size list of color ints, tone must be in commonTones if palette type is FlexPaletteType.common and in extendedTones if palette type is FlexPaletteType.extended.

Implementation

int get(int tone) {
  if (_hue == null || _chroma == null) {
    if (!_cache.containsKey(tone)) {
      throw ArgumentError.value(
        tone,
        'tone',
        'When a FlexTonalPalette is created with fromList using '
            '$_paletteType, tone must be one of '
            // ignore: lines_longer_than_80_chars
            '${_paletteType == FlexPaletteType.common ? commonTones : extendedTones}.',
      );
    } else {
      return _cache[tone]!;
    }
  }

  // If we are using `common` tonal palette type and the tone is larger or
  // equal to 90, allow maximum chroma value of 90, in other cases
  // use the actual chroma value.
  final double chroma =
      (tone >= 90.0) && _paletteType == FlexPaletteType.common
          ? math.min(_chroma!, 40.0)
          : _chroma!;
  return _cache.putIfAbsent(
      tone, () => Hct.from(_hue!, chroma, tone.toDouble()).toInt());
}