import { RefObject } from 'react';
export type MarqueeRect = {
    left: number;
    top: number;
    w: number;
    h: number;
};
/**
 * Ctrl+wheel, two-finger pinch and marquee-drag zoom for the scroll container.
 *
 * Wheel and pinch share one live gesture: the content is scaled with a CSS transform
 * while the fingers move, and the real zoom is committed once at the end, anchored so
 * the point under the cursor stays put.
 *
 * `isProgrammaticScrollRef` is owned by the caller because its scroll listener has to
 * ignore the scroll positions these gestures set.
 */
export declare function useZoomGestures(scrollRef: RefObject<HTMLDivElement | null>, contentRef: RefObject<HTMLDivElement | null>, isProgrammaticScrollRef: RefObject<boolean>): {
    marquee: MarqueeRect | null;
};