import React from 'react';
import { ParamsColor } from './Params';
interface AlphaProps {
    alpha: number;
    color: ParamsColor;
    onChange: (value: number) => void;
    rootPrefixCls: string;
}
export default class Alpha extends React.Component<AlphaProps> {
    static propTypes: {
        alpha: any;
        color: any;
        onChange: any;
        rootPrefixCls: any;
    };
    constructor(props: AlphaProps);
    componentWillUnmount(): void;
    onMouseDown: (e: any) => void;
    onDrag: (e: any) => void;
    onDragEnd: (e: any) => void;
    getBackground: () => string;
    getPrefixCls: () => string;
    pointMoveTo: (coords: any) => void;
    removeListeners: () => void;
    render(): JSX.Element;
}
export {};