@uiw/react-color-alpha

<div align="center" markdown="1"> <sup>Special thanks to:</sup> <br> <br> <a href="https://apps.apple.com/app/apple-store/id6757860829?pt=80185800&ct=jay&mt=8"> <img alt="SubList" width="400" src="https://jaywcjlove.github.io/sponsor/SubList.jpg"> </a> <br> <a href="https://apps.apple.com/app/apple-store/id6757860829?pt=80185800&ct=jay&mt=8"> SubList - Bill Reminder & Renewal Alerts </a> <br><br> </div> <hr> <div markdown="1"> <sup>Using <a href="https://wangchujiang.com/#/app" target="_blank">my app</a> is also a way to <a href="https://wangchujiang.com/#/sponsor" target="_blank">support</a> me:</sup> <br> <a target="_blank" href="https://jaywcjlove.github.io/maslink/?id=6766860898" title="Zipora: Zip/RAR/7Z Unarchiver"><img alt="Zipora: Zip/RAR/7Z Unarchiver" height="52" src="https://wangchujiang.com/appicon/zipora.png"></a> <a target="_blank" href="https://jaywcjlove.github.io/maslink/?id=6758053530" title="Scap: Screenshot & Markup Edit for macOS"><img alt="Scap: Screenshot & 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src="https://wangchujiang.com/appicon/resume-revise.png"></a> <a target="_blank" href="https://jaywcjlove.github.io/maslink/?id=6472593276" title="Palette Genius for macOS"><img alt="Palette Genius" height="52" src="https://wangchujiang.com/appicon/palette-genius.png"></a> <a target="_blank" href="https://jaywcjlove.github.io/maslink/?id=6470879005" title="Symbol Scribe for macOS"><img alt="Symbol Scribe" height="52" src="https://wangchujiang.com/appicon/symbol-scribe.png"></a> </div> <hr> React Color Alpha === [![Buy me a coffee](https://img.shields.io/badge/Buy_Me_a_Coffee-ffdd00?logo=buy-me-a-coffee&logoColor=black)](https://jaywcjlove.github.io/#/sponsor) [![Follow On X](https://img.shields.io/badge/Follow%20on%20X-333333?logo=x&logoColor=white)](https://x.com/jaywcjlove) [![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 ( <> <div style={{ display: "flex", gap: 10, flexDirection: "column", paddingBottom: 20 }}> <Alpha hsva={hsva} onChange={(newAlpha) => { setHsva({ ...hsva, ...newAlpha }); }} /> <Alpha hsva={hsva} reverse onChange={(newAlpha) => { setHsva({ ...hsva, ...newAlpha }); }} /> </div> <div style={{ display: "flex", gap: 10, flexDirection: "row" }}> <Alpha hsva={hsva} direction="vertical" width={16} height={120} onChange={(newAlpha) => { setHsva({ ...hsva, ...newAlpha }); }} /> <Alpha hsva={hsva} direction="vertical" reverse={true} width={16} height={120} onChange={(newAlpha) => { setHsva({ ...hsva, ...newAlpha }); }} /> </div> <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'; /** Flip alpha progression along the current axis. */ reverse?: boolean; 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.