import React from 'react';
import './ViewportLayout.less';
import ViewportMgr, { ViewportType } from './ViewportMgr';
export declare const GetViewportContext: React.Context<() => ViewportType>;
export interface ViewportLayoutProps extends React.HTMLAttributes<HTMLDivElement> {
    viewport?: ViewportMgr;
    maxZoom?: number;
    minZoom?: number;
    beforePointerDown?: (e: MouseEvent) => boolean;
}
declare const ViewportLayout: {
    (props: ViewportLayoutProps): JSX.Element;
    useViewport: typeof ViewportMgr.useViewport;
    GetViewportContext: React.Context<() => ViewportType>;
};
export default ViewportLayout;