import React, { Component } from 'react';
interface ZoomGestureProps {
    disabled?: boolean;
    maxZoom: number;
    zoomStep: number;
    scale: number;
    offset: number;
    disableMouseWheel?: boolean;
    onZoom: (event: ZoomEvent) => void;
    onZoomEnd: () => void;
}
export interface ZoomEvent {
    scale: number;
    offset: number;
}
export declare class Zoom extends Component<ZoomGestureProps, {}> {
    lastDistance: any;
    firstMidpoint: any;
    timeout: any;
    childRef: React.RefObject<SVGGElement>;
    componentDidMount(): void;
    componentWillUnmount(): void;
    onTouchStart: (event: TouchEvent) => void;
    onTouchMove: (event: TouchEvent) => void;
    onTouchEnd: (event: TouchEvent) => void;
    onWheel(event: React.MouseEvent): void;
    render(): React.DetailedReactHTMLElement<any, HTMLElement>[];
}
export {};