import { default as Vector2 } from '../geometry/Vector2';
import { SourceToTargetsArrayType } from './ArcherContainer.types';
export type ElementRects = Record<string, DOMRect>;
export type ArcherMeasurements = {
    parentCoordinates: Vector2 | null;
    rects: ElementRects;
};
/**
 * Measures the parent and every registered element after layout, storing the
 * result in state. Keeping the measurements in state (rather than reading the
 * DOM during render) makes the render pure, so it follows the Rules of React
 * and can be optimized by the React Compiler.
 *
 * Returns the latest measurements and a `refreshScreen` callback that forces a
 * re-measure (used by the resize listener, the element observer and the public
 * imperative handle).
 */
export declare function useArcherMeasurements(parentRef: React.RefObject<HTMLDivElement | null>, refs: Record<string, HTMLElement>, sourceToTargetsMap: Record<string, SourceToTargetsArrayType>): {
    measurements: ArcherMeasurements;
    refreshScreen: () => void;
};
/** Observe registered elements for size changes and refresh on any change. */
export declare const useObserveElements: (refs: Record<string, HTMLElement>, refreshScreen: () => void) => void;
/** Subscribe/unsubscribe to the resize window event */
export declare function useResizeListener(refreshScreen: () => void): void;