ant-design/components/theme/themes/shared/genRadius.ts

import type { MapToken } from '../../interface';

const genRadius = (
  radiusBase: number,
): Pick<
  MapToken,
  'borderRadiusXS' | 'borderRadiusSM' | 'borderRadiusLG' | 'borderRadius' | 'borderRadiusOuter'
> => {
  let radiusLG = radiusBase;
  let radiusSM = radiusBase;
  let radiusXS = radiusBase;
  let radiusOuter = radiusBase;

  // radiusLG
  if (radiusBase < 6 && radiusBase >= 5) {
    radiusLG = radiusBase + 1;
  } else if (radiusBase < 16 && radiusBase >= 6) {
    radiusLG = radiusBase + 2;
  } else if (radiusBase >= 16) {
    radiusLG = 16;
  }

  // radiusSM
  if (radiusBase < 7 && radiusBase >= 5) {
    radiusSM = 4;
  } else if (radiusBase < 8 && radiusBase >= 7) {
    radiusSM = 5;
  } else if (radiusBase < 14 && radiusBase >= 8) {
    radiusSM = 6;
  } else if (radiusBase < 16 && radiusBase >= 14) {
    radiusSM = 7;
  } else if (radiusBase >= 16) {
    radiusSM = 8;
  }

  // radiusXS
  if (radiusBase < 6 && radiusBase >= 2) {
    radiusXS = 1;
  } else if (radiusBase >= 6) {
    radiusXS = 2;
  }

  // radiusOuter
  if (radiusBase > 4 && radiusBase < 8) {
    radiusOuter = 4;
  } else if (radiusBase >= 8) {
    radiusOuter = 6;
  }

  return {
    borderRadius: radiusBase > 16 ? 16 : radiusBase,
    borderRadiusXS: radiusXS,
    borderRadiusSM: radiusSM,
    borderRadiusLG: radiusLG,
    borderRadiusOuter: radiusOuter,
  };
};

export default genRadius;