import type { ViewportTransform } from "../../core/graph/types";
export declare function usePanZoom(initial: ViewportTransform): {
    viewport: ViewportTransform;
    setViewport: import("react").Dispatch<import("react").SetStateAction<ViewportTransform>>;
    screenToWorld: (x: number, y: number, rect: DOMRect) => {
        x: number;
        y: number;
    };
    zoomAt: (clientX: number, clientY: number, rect: DOMRect, deltaY: number) => void;
    zoomBy: (factor: number, rect?: DOMRect) => void;
    panBy: (dx: number, dy: number) => void;
    frameNodes: (bounds: {
        minX: number;
        minY: number;
        maxX: number;
        maxY: number;
    }, rect: DOMRect) => void;
};
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