@uiw/react-color-alpha

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coffee](https://img.shields.io/badge/Buy%20me%20a%20coffee-048754?logo=buymeacoffee)](https://jaywcjlove.github.io/#/sponsor) [![npm bundle size](https://img.shields.io/bundlephobia/minzip/@uiw/react-color-alpha)](https://bundlephobia.com/package/@uiw/react-color-alpha) [![npm version](https://img.shields.io/npm/v/@uiw/react-color-alpha.svg)](https://www.npmjs.com/package/@uiw/react-color-alpha) [![Open in unpkg](https://img.shields.io/badge/Open%20in-unpkg-blue)](https://uiwjs.github.io/npm-unpkg/#/pkg/@uiw/react-color/file/README.md) Alpha is a subcomponent of [**`@react-color`**](https://uiwjs.github.io/react-color).  [![react-color-alpha](https://user-images.githubusercontent.com/1680273/125951872-e44340be-8406-4c80-8037-0c22d63708ee.png)](https://uiwjs.github.io/react-color/#/alpha)  ## Install ```bash npm i @uiw/react-color-alpha ``` ## Usage ```jsx mdx:preview import React, { useState } from 'react'; import { hsvaToRgbaString } from '@uiw/color-convert'; import Alpha from '@uiw/react-color-alpha'; export default function Demo() { const [hsva, setHsva] = useState({ h: 0, s: 0, v: 68, a: 1 }); return ( <> <Alpha hsva={hsva} onChange={(newAlpha) => { setHsva({ ...hsva, ...newAlpha }); }} /> <div style={{ background: hsvaToRgbaString(hsva), marginTop: 30, padding: 10 }}> {JSON.stringify(hsva)} </div> </> ); } ``` ## Props ```ts import React from 'react'; import { HsvaColor } from '@uiw/color-convert'; import { Interaction } from '@uiw/react-drag-event-interactive'; import type * as CSS from 'csstype'; import { PointerProps } from './Pointer'; export * from './Pointer'; export interface AlphaProps extends Omit<React.HTMLAttributes<HTMLDivElement>, 'onChange'> { prefixCls?: string; /** String, Pixel value for picker width. Default `316px` */ width?: CSS.Properties<string | number>['width']; /** String, Pixel value for picker height. Default `16px` */ height?: CSS.Properties<string | number>['height']; /** hsva => `{ h: 0, s: 75, v: 82, a: 1 }` */ hsva: HsvaColor; /** React Component, Custom pointer component */ pointer?: (props: PointerProps) => JSX.Element; /** Set rounded corners. */ radius?: CSS.Properties<string | number>['borderRadius']; /** Set the background color. */ background?: string; /** Set the background element props. */ bgProps?: React.HTMLAttributes<HTMLDivElement>; /** Set the interactive element props. */ innerProps?: React.HTMLAttributes<HTMLDivElement>; pointerProps?: PointerProps; /** String Enum, horizontal or vertical. Default `horizontal` */ direction?: 'vertical' | 'horizontal'; onChange?: (newAlpha: { a: number; }, offset: Interaction) => void; } export declare const BACKGROUND_IMG = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAMUlEQVQ4T2NkYGAQYcAP3uCTZhw1gGGYhAGBZIA/nYDCgBDAm9BGDWAAJyRCgLaBCAAgXwixzAS0pgAAAABJRU5ErkJggg=="; declare const Alpha: React.ForwardRefExoticComponent<AlphaProps & React.RefAttributes<HTMLDivElement>>; export default Alpha; interface PointerProps extends React.HTMLAttributes<HTMLDivElement> { prefixCls?: string; left?: string; top?: string; } ``` ## Contributors As always, thanks to our amazing contributors! <a href="https://github.com/uiwjs/react-color/graphs/contributors"> <img src="https://uiwjs.github.io/react-color/coverage/CONTRIBUTORS.svg" /> </a> Made with [contributors](https://github.com/jaywcjlove/github-action-contributors). ## License Licensed under the MIT License.