resolveScaledSpValue static method

double resolveScaledSpValue(double base, AppDimensContextLike scope, DpQualifier qualifier, { bool fontScale = true, Inverter inverter = Inverter.standard, bool ignoreMultiWindows = false, bool applyAspectRatio = false, double? customSensitivityK, })

Scaled sp value (logical sp): with fontScale the framework applies the system font scale at render; without it the value pre-divides by the scale so rendering cancels it back.

Implementation

static double resolveScaledSpValue(
  double base,
  AppDimensContextLike scope,
  DpQualifier qualifier, {
  bool fontScale = true,
  Inverter inverter = Inverter.standard,
  bool ignoreMultiWindows = false,
  bool applyAspectRatio = false,
  double? customSensitivityK,
}) {
  final configuration = scope.configuration;
  final key = CacheKey(
    baseValue: base,
    isLandscape: configuration.isLandscape,
    ignoreMultiWindows: ignoreMultiWindows,
    calcType: CalcType.scaled,
    qualifier: qualifier,
    inverter: inverter,
    applyAspectRatio: applyAspectRatio,
    valueType: fontScale ? ValueType.spWithScale : ValueType.spNoScale,
    customSensitivityK: customSensitivityK,
  );
  final metrics = scope.dimenMetrics;
  return DimenCache.getOrPutFor(metrics, key, () {
    final scaledDp = calculateScaledDp(
      base,
      configuration,
      qualifier,
      inverter,
      ignoreMultiWindows,
      applyAspectRatio,
      customSensitivityK,
      knownInMultiWindow: metrics.isInMultiWindowMode,
      metrics: metrics,
    );
    if (fontScale) return scaledDp;
    final fs = metrics.fontScale;
    return fs > 0 ? scaledDp / fs : scaledDp;
  });
}