truly-ui
Version:
Web Components for Desktop Applications.
126 lines • 21.3 kB
JavaScript
import { Hsla, Hsva, Rgba } from './colorpicker-formats';
import { Injectable } from '@angular/core';
import * as i0 from "@angular/core";
export class ColorPickerHelpers {
rgbaToHex(rgba, allowHex8) {
let hex = '#' + ((1 << 24) | (rgba.r << 16) | (rgba.g << 8) | rgba.b).toString(16).substr(1);
if (allowHex8) {
hex += ((1 << 8) | Math.round(rgba.a * 255)).toString(16).substr(1);
}
return hex;
}
hexToRgb(hex) {
const r = parseInt(hex.substring(1, 3), 16);
const g = parseInt(hex.substring(3, 5), 16);
const b = parseInt(hex.substring(5, 7), 16);
const a = Math.round((parseInt(hex.substring(7, 9), 16) / 255) * 100) / 100;
return (hex.length > 7) ? [r, g, b, a] : [r, g, b, 1];
}
hexToRgbString(hex) {
const r = parseInt(hex.substring(1, 3), 16);
const g = parseInt(hex.substring(3, 5), 16);
const b = parseInt(hex.substring(5, 7), 16);
const a = Math.round((parseInt(hex.substring(7, 9), 16) / 255) * 100) / 100;
return (hex.length > 7) ? 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')' : 'rgba(' + r + ',' + g + ',' + b + ',1)';
}
stringToHsva(colorString = '', allowHex8 = false) {
let hsva = null;
colorString = (colorString || '').toLowerCase();
const stringParsers = [
{
re: /(rgb)a?\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*%?,\s*(\d{1,3})\s*%?(?:,\s*(\d+(?:\.\d+)?)\s*)?\)/,
parse: (execResult) => {
return new Rgba(parseInt(execResult[2], 10) / 255, parseInt(execResult[3], 10) / 255, parseInt(execResult[4], 10) / 255, isNaN(parseFloat(execResult[5])) ? 1 : parseFloat(execResult[5]));
}
}, {
re: /(hsl)a?\(\s*(\d{1,3})\s*,\s*(\d{1,3})%\s*,\s*(\d{1,3})%\s*(?:,\s*(\d+(?:\.\d+)?)\s*)?\)/,
parse: (execResult) => {
return new Hsla(parseInt(execResult[2], 10) / 360, parseInt(execResult[3], 10) / 100, parseInt(execResult[4], 10) / 100, isNaN(parseFloat(execResult[5])) ? 1 : parseFloat(execResult[5]));
}
}
];
if (allowHex8) {
stringParsers.push({
re: /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})?$/,
parse: (execResult) => {
return new Rgba(parseInt(execResult[1], 16) / 255, parseInt(execResult[2], 16) / 255, parseInt(execResult[3], 16) / 255, parseInt(execResult[4] || 'FF', 16) / 255);
}
});
}
else {
stringParsers.push({
re: /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})$/,
parse: (execResult) => {
return new Rgba(parseInt(execResult[1], 16) / 255, parseInt(execResult[2], 16) / 255, parseInt(execResult[3], 16) / 255, 1);
}
});
}
stringParsers.push({
re: /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])$/,
parse: (execResult) => {
return new Rgba(parseInt(execResult[1] + execResult[1], 16) / 255, parseInt(execResult[2] + execResult[2], 16) / 255, parseInt(execResult[3] + execResult[3], 16) / 255, 1);
}
});
for (const key in stringParsers) {
if (stringParsers.hasOwnProperty(key)) {
const parser = stringParsers[key];
const match = parser.re.exec(colorString), color = match && parser.parse(match);
if (color) {
if (color instanceof Rgba) {
hsva = this.rgbaToHsva(color);
}
else if (color instanceof Hsla) {
hsva = this.hsla2hsva(color);
}
return hsva;
}
}
}
return hsva;
}
rgbaToHsva(rgba) {
let h, s;
const r = Math.min(rgba.r, 1), g = Math.min(rgba.g, 1);
const b = Math.min(rgba.b, 1), a = Math.min(rgba.a, 1);
const max = Math.max(r, g, b), min = Math.min(r, g, b);
const v = max, d = max - min;
s = (max === 0) ? 0 : d / max;
if (max === min) {
h = 0;
}
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;
default:
h = 0;
}
h /= 6;
}
return new Hsva(h, s, v, a);
}
hsla2hsva(hsla) {
const h = Math.min(hsla.h, 1), s = Math.min(hsla.s, 1);
const l = Math.min(hsla.l, 1), a = Math.min(hsla.a, 1);
if (l === 0) {
return new Hsva(h, 0, 0, a);
}
else {
const v = l + s * (1 - Math.abs(2 * l - 1)) / 2;
return new Hsva(h, 2 * (v - l) / v, v, a);
}
}
}
/** @nocollapse */ ColorPickerHelpers.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.10", ngImport: i0, type: ColorPickerHelpers, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
/** @nocollapse */ ColorPickerHelpers.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.10", ngImport: i0, type: ColorPickerHelpers });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.10", ngImport: i0, type: ColorPickerHelpers, decorators: [{
type: Injectable
}] });
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{Hsla, Hsva, Rgba} from './colorpicker-formats';\nimport { Injectable } from '@angular/core';\n\n@Injectable()\nexport class ColorPickerHelpers {\n  rgbaToHex(rgba: Rgba, allowHex8?: boolean): string {\n    let hex = '#' + ((1 << 24) | (rgba.r << 16) | (rgba.g << 8) | rgba.b).toString(16).substr(1);\n    if (allowHex8) {\n      hex += ((1 << 8) | Math.round(rgba.a * 255)).toString(16).substr(1);\n    }\n    return hex;\n  }\n\n  hexToRgb(hex): Array<number> {\n    const r = parseInt(hex.substring(1, 3), 16);\n    const g = parseInt(hex.substring(3, 5), 16);\n    const b = parseInt(hex.substring(5, 7), 16);\n    const a = Math.round((parseInt(hex.substring(7, 9), 16) / 255) * 100) / 100;\n    return (hex.length > 7) ? [r, g, b, a] : [r, g, b, 1];\n  }\n\n  hexToRgbString(hex): string {\n    const r = parseInt(hex.substring(1, 3), 16);\n    const g = parseInt(hex.substring(3, 5), 16);\n    const b = parseInt(hex.substring(5, 7), 16);\n    const a = Math.round((parseInt(hex.substring(7, 9), 16) / 255) * 100) / 100;\n    return (hex.length > 7) ? 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')' : 'rgba(' + r + ',' + g + ',' + b + ',1)';\n  }\n\n  public stringToHsva(colorString: string = '', allowHex8: boolean = false): Hsva | null {\n    let hsva: Hsva | null = null;\n    colorString = (colorString || '').toLowerCase();\n\n    const stringParsers = [\n      {\n        re: /(rgb)a?\\(\\s*(\\d{1,3})\\s*,\\s*(\\d{1,3})\\s*%?,\\s*(\\d{1,3})\\s*%?(?:,\\s*(\\d+(?:\\.\\d+)?)\\s*)?\\)/,\n        parse: (execResult: any) => {\n          return new Rgba(parseInt(execResult[2], 10) / 255,\n            parseInt(execResult[3], 10) / 255,\n            parseInt(execResult[4], 10) / 255,\n            isNaN(parseFloat(execResult[5])) ? 1 : parseFloat(execResult[5]));\n        }\n      }, {\n        re: /(hsl)a?\\(\\s*(\\d{1,3})\\s*,\\s*(\\d{1,3})%\\s*,\\s*(\\d{1,3})%\\s*(?:,\\s*(\\d+(?:\\.\\d+)?)\\s*)?\\)/,\n        parse: ( execResult: any) => {\n          return new Hsla(parseInt(execResult[2], 10) / 360,\n            parseInt(execResult[3], 10) / 100,\n            parseInt(execResult[4], 10) / 100,\n            isNaN(parseFloat(execResult[5])) ? 1 : parseFloat(execResult[5]));\n        }\n      }\n    ];\n\n    if (allowHex8) {\n      stringParsers.push({\n        re: /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})?$/,\n        parse: (execResult: any) => {\n          return new Rgba(parseInt(execResult[1], 16) / 255,\n            parseInt(execResult[2], 16) / 255,\n            parseInt(execResult[3], 16) / 255,\n            parseInt(execResult[4] || 'FF', 16) / 255);\n        }\n      });\n    } else {\n      stringParsers.push({\n        re: /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})$/,\n        parse: (execResult: any) => {\n          return new Rgba(parseInt(execResult[1], 16) / 255,\n            parseInt(execResult[2], 16) / 255,\n            parseInt(execResult[3], 16) / 255,\n            1);\n        }\n      });\n    }\n\n    stringParsers.push({\n      re: /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])$/,\n      parse: (execResult: any) => {\n        return new Rgba(parseInt(execResult[1] + execResult[1], 16) / 255,\n          parseInt(execResult[2] + execResult[2], 16) / 255,\n          parseInt(execResult[3] + execResult[3], 16) / 255,\n          1);\n      }\n    });\n\n    for (const key in stringParsers) {\n      if (stringParsers.hasOwnProperty(key)) {\n        const parser = stringParsers[key];\n        const match = parser.re.exec(colorString), color: any = match && parser.parse(match);\n        if (color) {\n          if (color instanceof Rgba) {\n            hsva = this.rgbaToHsva(color);\n          } else if (color instanceof Hsla) {\n            hsva = this.hsla2hsva(color);\n          }\n          return hsva;\n        }\n      }\n    }\n    return hsva;\n  }\n\n  public rgbaToHsva(rgba: Rgba): Hsva {\n    let h: number, s: number;\n    const r = Math.min(rgba.r, 1), g = Math.min(rgba.g, 1);\n    const b = Math.min(rgba.b, 1), a = Math.min(rgba.a, 1);\n    const max = Math.max(r, g, b), min = Math.min(r, g, b);\n    const v: number = max, d = max - min;\n\n    s = (max === 0) ? 0 : d / max;\n    if (max === min) {\n      h = 0;\n    } else {\n      switch (max) {\n        case r:\n          h = (g - b) / d + (g < b ? 6 : 0);\n          break;\n        case g:\n          h = (b - r) / d + 2;\n          break;\n        case b:\n          h = (r - g) / d + 4;\n          break;\n        default:\n          h = 0;\n      }\n      h /= 6;\n    }\n    return new Hsva(h, s, v, a);\n  }\n\n  public hsla2hsva(hsla: Hsla): Hsva {\n    const h = Math.min(hsla.h, 1), s = Math.min(hsla.s, 1);\n    const l = Math.min(hsla.l, 1), a = Math.min(hsla.a, 1);\n\n    if (l === 0) {\n      return new Hsva(h, 0, 0, a);\n    } else {\n      const v = l + s * (1 - Math.abs(2 * l - 1)) / 2;\n      return new Hsva(h, 2 * (v - l) / v, v, a);\n    }\n  }\n\n}\n"]}