angular-color-picker-fixed
Version:
Radial Color Picker - Angular
145 lines • 15.4 kB
JavaScript
export const hexToRgb = (hex) => {
const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
const r = parseInt(result[1], 16);
const g = parseInt(result[2], 16);
const b = parseInt(result[3], 16);
return { r, g, b };
};
export const extractRGB = (rgb) => {
const result = /^(?:rgb\((\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\))$/i.exec(rgb);
const r = parseInt(result[1], 10);
const g = parseInt(result[2], 10);
const b = parseInt(result[3], 10);
return { r, g, b };
};
export const extractHSL = (hsl) => {
const result = /^(?:hsl\((\d{1,3})\s*,\s*(\d{1,3})%\s*,\s*(\d{1,3})%\))$/i.exec(hsl);
const h = parseInt(result[1], 10);
const s = parseInt(result[2], 10);
const l = parseInt(result[3], 10);
return { h, s, l };
};
/**
* Converts RGB color model to hexadecimal string.
*
* @memberOf Utilities
*
* @param r Integer between 0 and 255
* @param g Integer between 0 and 255
* @param b Integer between 0 and 255
*
* @return 6 char long hex string
*/
export const rgbToHex = (r, g, b) => {
// tslint:disable-next-line:no-bitwise
return ((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1);
};
/**
* Converts RGB color model to HSL model.
*
* @memberOf Utilities
*
* @param r Integer between 0 and 255
* @param g Integer between 0 and 255
* @param Integer between 0 and 255
*
* @return The HSL representation containing the hue (in degrees),
* saturation (in percentage) and luminosity (in percentage) fields.
*/
export const rgbToHsl = (r, g, b) => {
r = r / 255;
g = g / 255;
b = b / 255;
let h, s;
const max = Math.max(r, g, b);
const min = Math.min(r, g, b);
const l = (max + min) / 2;
if (max === min) {
h = s = 0; // achromatic
}
else {
const d = max - min;
s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
if (max === r) {
h = (g - b) / d + (g < b ? 6 : 0);
}
if (max === g) {
h = (b - r) / d + 2;
}
if (max === b) {
h = (r - g) / d + 4;
}
}
return {
hue: h * 60,
saturation: s * 100,
luminosity: l * 100
};
};
/**
* Converts HSL color model to hexademical string.
*
* @memberOf Utilities
*
* @param h Integer between 0 and 360
* @param s Integer between 0 and 100
* @param l Integer between 0 and 50
*
* @return 6 char long hex string
*/
export const hslToHex = (h, s, l) => {
const colorModel = hslToRgb(h, s, l);
return rgbToHex(colorModel.red, colorModel.green, colorModel.blue);
};
/**
* Converts HSL color model to RGB model.
* Shamelessly taken from http://axonflux.com/handy-rgb-to-hsl-and-rgb-to-hsv-color-model-c
*
* @memberOf Utilities
*
* @param h The hue. Number in the 0-360 range
* @param s The saturation. Number in the 0-100 range
* @param l The luminosity. Number in the 0-100 range
*
* @return The RGB representation containing the red, green and blue fields
*/
export const hslToRgb = (h, s, l) => {
let r, g, b;
h = h / 360;
s = s / 100;
l = l / 100;
if (s === 0) {
r = g = b = l; // achromatic
}
else {
const q = l < 0.5 ? l * (1 + s) : l + s - l * s;
const p = 2 * l - q;
r = _hue2rgb(p, q, h + 1 / 3);
g = _hue2rgb(p, q, h);
b = _hue2rgb(p, q, h - 1 / 3);
}
return {
red: Math.round(r * 255),
green: Math.round(g * 255),
blue: Math.round(b * 255)
};
};
export const _hue2rgb = (p, q, t) => {
if (t < 0) {
t += 1;
}
if (t > 1) {
t -= 1;
}
if (t < 1 / 6) {
return p + (q - p) * 6 * t;
}
if (t < 1 / 2) {
return q;
}
if (t < 2 / 3) {
return p + (q - p) * (2 / 3 - t) * 6;
}
return p;
};
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const hexToRgb = (hex) => {\n  const result = /^#?([a-f\\d]{2})([a-f\\d]{2})([a-f\\d]{2})$/i.exec(hex);\n  const r = parseInt(result[1], 16);\n  const g = parseInt(result[2], 16);\n  const b = parseInt(result[3], 16);\n\n  return { r, g, b };\n};\nexport const extractRGB = (rgb) => {\n  const result = /^(?:rgb\\((\\d{1,3})\\s*,\\s*(\\d{1,3})\\s*,\\s*(\\d{1,3})\\))$/i.exec(rgb);\n  const r = parseInt(result[1], 10);\n  const g = parseInt(result[2], 10);\n  const b = parseInt(result[3], 10);\n\n  return { r, g, b };\n};\nexport const extractHSL = (hsl) => {\n  const result = /^(?:hsl\\((\\d{1,3})\\s*,\\s*(\\d{1,3})%\\s*,\\s*(\\d{1,3})%\\))$/i.exec(hsl);\n  const h = parseInt(result[1], 10);\n  const s = parseInt(result[2], 10);\n  const l = parseInt(result[3], 10);\n\n  return { h, s, l };\n};\n\n\n\n/**\n * Converts RGB color model to hexadecimal string.\n *\n * @memberOf Utilities\n *\n * @param r Integer between 0 and 255\n * @param g Integer between 0 and 255\n * @param b Integer between 0 and 255\n *\n * @return 6 char long hex string\n*/\nexport const rgbToHex = (r: number, g: number, b: number): string => {\n  // tslint:disable-next-line:no-bitwise\n  return ((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1);\n};\n\n/**\n * Converts RGB color model to HSL model.\n *\n * @memberOf Utilities\n *\n * @param r Integer between 0 and 255\n * @param g Integer between 0 and 255\n * @param Integer between 0 and 255\n *\n * @return The HSL representation containing the hue (in degrees),\n *                     saturation (in percentage) and luminosity (in percentage) fields.\n */\nexport const rgbToHsl = (r: number, g: number, b: number): { hue: number, saturation: number, luminosity: number } => {\n  r = r / 255;\n  g = g / 255;\n  b = b / 255;\n\n  let h, s;\n  const max = Math.max(r, g, b);\n  const min = Math.min(r, g, b);\n  const l = (max + min) / 2;\n\n  if (max === min) {\n    h = s = 0; // achromatic\n  } else {\n    const d = max - min;\n\n    s = l > 0.5 ? d / (2 - max - min) : d / (max + min);\n\n    if (max === r) {\n      h = (g - b) / d + (g < b ? 6 : 0);\n    }\n    if (max === g) {\n      h = (b - r) / d + 2;\n    }\n    if (max === b) {\n      h = (r - g) / d + 4;\n    }\n  }\n\n  return {\n    hue: h * 60,\n    saturation: s * 100,\n    luminosity: l * 100\n  };\n};\n\n/**\n * Converts HSL color model to hexademical string.\n *\n * @memberOf Utilities\n *\n * @param h Integer between 0 and 360\n * @param s Integer between 0 and 100\n * @param l Integer between 0 and 50\n *\n * @return 6 char long hex string\n */\nexport const hslToHex = (h: number, s: number, l: number): string => {\n  const colorModel = hslToRgb(h, s, l);\n\n  return rgbToHex(colorModel.red, colorModel.green, colorModel.blue);\n};\n\n/**\n * Converts HSL color model to RGB model.\n * Shamelessly taken from http://axonflux.com/handy-rgb-to-hsl-and-rgb-to-hsv-color-model-c\n *\n * @memberOf Utilities\n *\n * @param h The hue. Number in the 0-360 range\n * @param s The saturation. Number in the 0-100 range\n * @param l The luminosity. Number in the 0-100 range\n *\n * @return The RGB representation containing the red, green and blue fields\n */\nexport const hslToRgb = (h, s, l): { red: number, green: number, blue: number } => {\n  let r, g, b;\n\n  h = h / 360;\n  s = s / 100;\n  l = l / 100;\n\n  if (s === 0) {\n    r = g = b = l; // achromatic\n  } else {\n    const q = l < 0.5 ? l * (1 + s) : l + s - l * s;\n    const p = 2 * l - q;\n\n    r = _hue2rgb(p, q, h + 1 / 3);\n    g = _hue2rgb(p, q, h);\n    b = _hue2rgb(p, q, h - 1 / 3);\n  }\n\n  return {\n    red: Math.round(r * 255),\n    green: Math.round(g * 255),\n    blue: Math.round(b * 255)\n  };\n};\n\nexport const _hue2rgb = (p, q, t) => {\n  if (t < 0) {\n    t += 1;\n  }\n  if (t > 1) {\n    t -= 1;\n  }\n  if (t < 1 / 6) {\n    return p + (q - p) * 6 * t;\n  }\n  if (t < 1 / 2) {\n    return q;\n  }\n  if (t < 2 / 3) {\n    return p + (q - p) * (2 / 3 - t) * 6;\n  }\n\n  return p;\n};\n"]}