import { RefObject } from 'react';
import { NodeData } from '../types';
/**
 * Checks if the node can be linked or not.
 */
export declare function checkNodeLinkable(curNode: NodeData, enteredNode: NodeData | null, canLinkNode: boolean | null): boolean;
export interface CoordProps {
    zoom: number;
    layoutXY: [number, number];
    containerRef: RefObject<HTMLDivElement | null>;
}
/**
 * Given various dimensions and positions, create a matrix
 * used for determining position.
 */
export declare function getCoords({ zoom, layoutXY, containerRef }: CoordProps): any;
/**
 * Given a nodeId to find, a list of nodes to check against, and an optional parentId of the node
 * find the node from the list of nodes
 */
export declare function findNestedNode(nodeId: string, children: any[], parentId?: string): {
    [key: string]: any;
};
/**
 * Return the layout node that is currently being dragged on the Canvas
 */
export declare function getDragNodeData(dragNode: NodeData, children?: any[]): {
    [key: string]: any;
};