const hsv2hsl = function (hue, sat, val) {
|
return [hue, (sat * val) / ((hue = (2 - sat) * val) < 1 ? hue : 2 - hue) || 0, hue / 2];
|
};
|
|
const isOnePointZero = function (n) {
|
return typeof n === 'string' && n.indexOf('.') !== -1 && parseFloat(n) === 1;
|
};
|
|
const isPercentage = function (n) {
|
return typeof n === 'string' && n.indexOf('%') !== -1;
|
};
|
|
const bound01 = function (value, max) {
|
if (isOnePointZero(value)) value = '100%';
|
|
const processPercent = isPercentage(value);
|
value = Math.min(max, Math.max(0, parseFloat(`${value}`)));
|
|
if (processPercent) {
|
value = parseInt(`${value * max}`, 10) / 100;
|
}
|
|
if (Math.abs(value - max) < 0.000001) {
|
return 1;
|
}
|
|
return (value % max) / parseFloat(max);
|
};
|
|
const INT_HEX_MAP = {10: 'A', 11: 'B', 12: 'C', 13: 'D', 14: 'E', 15: 'F'};
|
|
const hexOne = function (value) {
|
value = Math.min(Math.round(value), 255);
|
const high = Math.floor(value / 16);
|
const low = value % 16;
|
return `${INT_HEX_MAP[high] || high}${INT_HEX_MAP[low] || low}`;
|
};
|
|
const toHex = function ({r, g, b}) {
|
if (isNaN(r) || isNaN(g) || isNaN(b)) return '';
|
|
return `#${hexOne(r)}${hexOne(g)}${hexOne(b)}`;
|
};
|
|
const HEX_INT_MAP = {A: 10, B: 11, C: 12, D: 13, E: 14, F: 15};
|
|
const parseHexChannel = function (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[1].toUpperCase()] || +hex[1];
|
};
|
|
const hsl2hsv = function (hue, sat, light) {
|
sat = sat / 100;
|
light = light / 100;
|
let smin = sat;
|
const lmin = Math.max(light, 0.01);
|
// let sv
|
// let v
|
|
light *= 2;
|
sat *= light <= 1 ? light : 2 - light;
|
smin *= lmin <= 1 ? lmin : 2 - lmin;
|
const v = (light + sat) / 2;
|
const sv = light === 0 ? (2 * smin) / (lmin + smin) : (2 * sat) / (light + sat);
|
|
return {
|
h: hue,
|
s: sv * 100,
|
v: v * 100,
|
};
|
};
|
|
const rgb2hsv = function (r, g, b) {
|
r = bound01(r, 255);
|
g = bound01(g, 255);
|
b = bound01(b, 255);
|
|
const max = Math.max(r, g, b);
|
const min = Math.min(r, g, b);
|
let h;
|
const v = max;
|
|
const d = max - min;
|
const s = max === 0 ? 0 : d / max;
|
|
if (max === min) {
|
h = 0; // achromatic
|
} else {
|
switch (max) {
|
case r: {
|
h = (g - b) / d + (g < b ? 6 : 0);
|
break;
|
}
|
case g: {
|
h = (b - r) / d + 2;
|
break;
|
}
|
case b: {
|
h = (r - g) / d + 4;
|
break;
|
}
|
}
|
h /= 6;
|
}
|
|
return {h: h * 360, s: s * 100, v: v * 100};
|
};
|
|
const hsv2rgb = function (h, s, v) {
|
h = bound01(h, 360) * 6;
|
s = bound01(s, 100);
|
v = bound01(v, 100);
|
|
const i = Math.floor(h);
|
const f = h - i;
|
const p = v * (1 - s);
|
const q = v * (1 - f * s);
|
const t = v * (1 - (1 - f) * s);
|
const mod = i % 6;
|
const r = [v, q, p, p, t, v][mod];
|
const g = [t, v, v, q, p, p][mod];
|
const b = [p, p, t, v, v, q][mod];
|
|
return {
|
r: Math.round(r * 255),
|
g: Math.round(g * 255),
|
b: Math.round(b * 255),
|
};
|
};
|
|
function Color(options) {
|
this._hue = 0;
|
this._saturation = 0;
|
this._value = 100;
|
this._alpha = 100;
|
this.enableAlpha = false;
|
this.format = 'hex';
|
this.value = '';
|
|
options = options || {};
|
this.enableAlpha = options.enableAlpha || false;
|
this.format = (options.format || 'hex').toLowerCase();
|
}
|
|
Color.prototype.set = function (prop, value) {
|
if (arguments.length === 1 && typeof prop === 'object') {
|
for (const p in prop) {
|
if (Object.hasOwn(prop, p)) {
|
this.set(p, prop[p]);
|
}
|
}
|
|
return;
|
}
|
|
this[`_${prop}`] = value;
|
this.doOnChange();
|
};
|
|
Color.prototype.get = function (prop) {
|
if (prop === 'alpha') {
|
return Math.floor(this[`_${prop}`]);
|
}
|
return this[`_${prop}`];
|
};
|
|
Color.prototype.toRgb = function () {
|
return hsv2rgb(this._hue, this._saturation, this._value);
|
};
|
|
Color.prototype.fromString = function (value) {
|
if (!value) {
|
this._hue = 0;
|
this._saturation = 0;
|
this._value = 100;
|
this._alpha = 100;
|
this.value = '';
|
return this.value;
|
}
|
|
const fromHSV = (h, s, v) => {
|
this._hue = Math.max(0, Math.min(360, h))
|
this._saturation = Math.max(0, Math.min(100, s))
|
this._value = Math.max(0, Math.min(100, v))
|
|
this.doOnChange()
|
}
|
|
if (value.indexOf('hsl') !== -1) {
|
const parts = value
|
.replace(/hsla|hsl|\(|\)/gm, '')
|
.split(/\s|,/g)
|
.filter((val) => val !== '')
|
.map((val, index) => (index > 2 ? parseFloat(val) : parseInt(val, 10)))
|
|
if (parts.length === 4) {
|
this._alpha = parseFloat(parts[3]) * 100
|
} else if (parts.length === 3) {
|
this._alpha = 100
|
}
|
if (parts.length >= 3) {
|
const {h, s, v} = hsl2hsv(parts[0], parts[1], parts[2])
|
fromHSV(h, s, v)
|
}
|
} else if (value.indexOf('hsv') !== -1) {
|
const parts = value
|
.replace(/hsva|hsv|\(|\)/gm, '')
|
.split(/\s|,/g)
|
.filter((val) => val !== '')
|
.map((val, index) => (index > 2 ? parseFloat(val) : parseInt(val, 10)))
|
|
if (parts.length === 4) {
|
this._alpha = parseFloat(parts[3]) * 100
|
} else if (parts.length === 3) {
|
this._alpha = 100
|
}
|
if (parts.length >= 3) {
|
fromHSV(parts[0], parts[1], parts[2])
|
}
|
} else if (value.indexOf('rgb') !== -1) {
|
const parts = value
|
.replace(/rgba|rgb|\(|\)/gm, '')
|
.split(/\s|,/g)
|
.filter((val) => val !== '')
|
.map((val, index) => (index > 2 ? parseFloat(val) : parseInt(val, 10)))
|
|
if (parts.length === 4) {
|
this._alpha = parseFloat(parts[3]) * 100
|
} else if (parts.length === 3) {
|
this._alpha = 100
|
}
|
if (parts.length >= 3) {
|
const {h, s, v} = rgb2hsv(parts[0], parts[1], parts[2])
|
fromHSV(h, s, v)
|
}
|
} else if (value.indexOf('#') !== -1) {
|
const hex = value.replace('#', '').trim()
|
if (!/^[0-9a-fA-F]{3}$|^[0-9a-fA-F]{6}$|^[0-9a-fA-F]{8}$/.test(hex)) return
|
let r, g, b
|
|
if (hex.length === 3) {
|
r = parseHexChannel(hex[0] + hex[0])
|
g = parseHexChannel(hex[1] + hex[1])
|
b = parseHexChannel(hex[2] + hex[2])
|
} else if (hex.length === 6 || hex.length === 8) {
|
r = parseHexChannel(hex.substring(0, 2))
|
g = parseHexChannel(hex.substring(2, 4))
|
b = parseHexChannel(hex.substring(4, 6))
|
}
|
|
if (hex.length === 8) {
|
this._alpha = (parseHexChannel(hex.substring(6)) / 255) * 100
|
} else if (hex.length === 3 || hex.length === 6) {
|
this._alpha = 100
|
}
|
|
const {h, s, v} = rgb2hsv(r, g, b)
|
fromHSV(h, s, v)
|
}
|
/* if (!value) {
|
this._hue = 0;
|
this._saturation = 0;
|
this._value = 100;
|
this._alpha = 100;
|
this.value = '';
|
return this.value;
|
}
|
|
const fromHSV = (h, s, v) => {
|
this._hue = parseInt(Math.max(0, Math.min(360, h)));
|
this._saturation = Math.max(0, Math.min(100, s));
|
this._value = Math.max(0, Math.min(100, v));
|
|
this.doOnChange();
|
};
|
|
if (value.indexOf('hsl') !== -1) {
|
const parts = value
|
.replace(/hsla|hsl|\(|\)/gm, '')
|
.split(/\s|,/g)
|
.filter((val) => val !== '')
|
.map((val, index) => (index > 2 ? parseFloat(val) : parseInt(val, 10)));
|
|
if (parts.length === 4) {
|
this._alpha = parseFloat(parts[3]) * 100;
|
} else if (parts.length === 3) {
|
this._alpha = 100;
|
}
|
if (parts.length >= 3) {
|
const { h, s, v } = hsl2hsv(parts[0], parts[1], parts[2]);
|
fromHSV(h, s, v);
|
}
|
} else if (value.indexOf('hsv') !== -1) {
|
const parts = value
|
.replace(/hsva|hsv|\(|\)/gm, '')
|
.split(/\s|,/g)
|
.filter((val) => val !== '')
|
.map((val, index) => (index > 2 ? parseFloat(val) : parseInt(val, 10)));
|
|
if (parts.length === 4) {
|
this._alpha = parseFloat(parts[3]) * 100;
|
} else if (parts.length === 3) {
|
this._alpha = 100;
|
}
|
if (parts.length >= 3) {
|
fromHSV(parts[0], parts[1], parts[2]);
|
}
|
} else if (value.indexOf('rgb') !== -1) {
|
const parts = value
|
.replace(/rgba|rgb|\(|\)/gm, '')
|
.split(/\s|,/g)
|
.filter((val) => val !== '')
|
.map((val, index) => (index > 2 ? parseFloat(val) : parseInt(val, 10)));
|
|
if (parts.length === 4) {
|
this._alpha = parseFloat(parts[3]) * 100;
|
} else if (parts.length === 3) {
|
this._alpha = 100;
|
}
|
if (parts.length >= 3) {
|
const { h, s, v } = rgb2hsv(parts[0], parts[1], parts[2]);
|
fromHSV(h, s, v);
|
}
|
} else if (value.indexOf('#') !== -1) {
|
const hex = value.replace('#', '').trim();
|
if (!/^[0-9a-fA-F]{3}$|^[0-9a-fA-F]{6}$|^[0-9a-fA-F]{8}$/.test(hex)) return;
|
let r, g, b;
|
|
if (hex.length === 3) {
|
r = parseHexChannel(hex[0] + hex[0]);
|
g = parseHexChannel(hex[1] + hex[1]);
|
b = parseHexChannel(hex[2] + hex[2]);
|
} else if (hex.length === 6 || hex.length === 8) {
|
r = parseHexChannel(hex.substring(0, 2));
|
g = parseHexChannel(hex.substring(2, 4));
|
b = parseHexChannel(hex.substring(4, 6));
|
}
|
|
if (hex.length === 8) {
|
this._alpha = (parseHexChannel(hex.substring(6)) / 255) * 100;
|
} else if (hex.length === 3 || hex.length === 6) {
|
this._alpha = 100;
|
}
|
|
const { h, s, v } = rgb2hsv(r, g, b);
|
fromHSV(h, s, v);
|
}*/
|
return this.value;
|
};
|
|
Color.prototype.compare = function (color) {
|
return (
|
Math.abs(color._hue - this._hue) < 2 &&
|
Math.abs(color._saturation - this._saturation) < 1 &&
|
Math.abs(color._value - this._value) < 1 &&
|
Math.abs(color._alpha - this._alpha) < 1
|
);
|
};
|
|
Color.prototype.doOnChange = function () {
|
const {_hue, _saturation, _value, _alpha, format} = this;
|
|
if (this.enableAlpha) {
|
switch (format) {
|
case 'hsl': {
|
const hsl = hsv2hsl(_hue, _saturation / 100, _value / 100);
|
this.value = `hsla(${_hue}, ${Math.round(hsl[1] * 100)}%, ${Math.round(hsl[2] * 100)}%, ${this.get('alpha') / 100})`;
|
break;
|
}
|
case 'hsv': {
|
this.value = `hsva(${_hue}, ${Math.round(_saturation)}%, ${Math.round(_value)}%, ${this.get('alpha') / 100})`;
|
break;
|
}
|
case 'hex': {
|
this.value = `${toHex(hsv2rgb(_hue, _saturation, _value))}${hexOne((_alpha * 255) / 100
|
)}`;
|
break;
|
}
|
default: {
|
const {r, g, b} = hsv2rgb(_hue, _saturation, _value);
|
this.value = `rgba(${r}, ${g}, ${b}, ${this.get('alpha') / 100})`;
|
}
|
}
|
} else {
|
switch (format) {
|
case 'hsl': {
|
const hsl = hsv2hsl(_hue, _saturation / 100, _value / 100);
|
this.value = `hsl(${_hue}, ${Math.round(hsl[1] * 100)}%, ${Math.round(hsl[2] * 100)}%)`;
|
break;
|
}
|
case 'hsv': {
|
this.value = `hsv(${_hue}, ${Math.round(_saturation)}%, ${Math.round(_value)}%)`;
|
break;
|
}
|
case 'rgb': {
|
const {r, g, b} = hsv2rgb(_hue, _saturation, _value);
|
this.value = `rgb(${r}, ${g}, ${b})`;
|
break;
|
}
|
default: {
|
this.value = toHex(hsv2rgb(_hue, _saturation, _value));
|
}
|
}
|
}
|
};
|
|
export default Color;
|
