import type { LayoutNode } from '../types';
export declare function usePanZoom(svgRef: React.RefObject<SVGSVGElement | null>, nodes: LayoutNode[]): {
    pan: {
        x: number;
        y: number;
    };
    setPan: import("react").Dispatch<import("react").SetStateAction<{
        x: number;
        y: number;
    }>>;
    zoom: number;
    setZoom: import("react").Dispatch<import("react").SetStateAction<number>>;
    animateTo: (targetZoom: number, targetPanX: number, targetPanY: number) => void;
    autoFit: () => {
        zoom: number;
        panX: number;
        panY: number;
    } | undefined;
    zoomIn: () => void;
    zoomOut: () => void;
    contentCenter: {
        x: number;
        y: number;
    };
    panToNode: (nodeId: string) => void;
};