t-comm/es/color/helper.mjs

专业、稳定、纯粹的工具库

var HEX_INT_MAP = {
  A: 10,
  B: 11,
  C: 12,
  D: 13,
  E: 14,
  F: 15
};
var INT_HEX_MAP = {
  10: 'A',
  11: 'B',
  12: 'C',
  13: 'D',
  14: 'E',
  15: 'F'
};
var isOnePointZero = function isOnePointZero(n) {
  return typeof n === 'string' && n.indexOf('.') !== -1 && parseFloat(n) === 1;
};
var isPercentage = function isPercentage(n) {
  return typeof n === 'string' && n.indexOf('%') !== -1;
};
// Take input from [0, n] and return it as [0, 1]
var bound01 = function bound01(value, max) {
  if (isOnePointZero(value)) value = '100%';
  var processPercent = isPercentage(value);
  value = Math.min(max, Math.max(0, parseFloat(value)));
  // Automatically convert percentage into number
  if (processPercent) {
    value = parseInt("".concat(value * max), 10) / 100;
  }
  // Handle floating point rounding errors
  if (Math.abs(value - max) < 0.000001) {
    return 1;
  }
  // Convert into [0, 1] range if it isn't already
  return value % max / parseFloat("".concat(max));
};
var parseHexChannel = function parseHexChannel(hex) {
  if (hex.length === 2) {
    return (HEX_INT_MAP[hex[0].toUpperCase()] || +hex[0]) * 16 + (HEX_INT_MAP[hex[1].toUpperCase()] || +hex[1]);
  }
  return HEX_INT_MAP[hex[0].toUpperCase()] || +hex[0];
};
var rgbToHex = function rgbToHex(_a) {
  var r = _a.r,
    g = _a.g,
    b = _a.b;
  var hexOne = function hexOne(value) {
    value = Math.min(Math.round(value), 255);
    var high = Math.floor(value / 16);
    var low = value % 16;
    return "".concat(INT_HEX_MAP[high] || high).concat(INT_HEX_MAP[low] || low);
  };
  if (isNaN(r) || isNaN(g) || isNaN(b)) return '';
  return "#".concat(hexOne(r)).concat(hexOne(g)).concat(hexOne(b));
};

export { bound01, isOnePointZero, isPercentage, parseHexChannel, rgbToHex };