import type { MindMapData, LayoutNode, LayoutDirection } from '../types';
interface UseDragParams {
    svgRef: React.RefObject<SVGSVGElement | null>;
    zoom: number;
    pan: {
        x: number;
        y: number;
    };
    setPan: React.Dispatch<React.SetStateAction<{
        x: number;
        y: number;
    }>>;
    setZoom: React.Dispatch<React.SetStateAction<number>>;
    nodeMap: Record<string, LayoutNode>;
    nodes: LayoutNode[];
    updateData: (updater: (prev: MindMapData[]) => MindMapData[]) => void;
    direction: LayoutDirection;
    splitIndices: Record<string, number>;
    setSplitIndices: React.Dispatch<React.SetStateAction<Record<string, number>>>;
    mapData: MindMapData[];
    contentCenter: {
        x: number;
        y: number;
    };
}
export declare function useDrag({ svgRef, zoom, pan, setPan, setZoom, nodeMap, nodes, updateData, direction, splitIndices, setSplitIndices, mapData, contentCenter, }: UseDragParams): {
    draggingCanvas: boolean;
    floatingNodeId: string | null;
    floatingPos: {
        x: number;
        y: number;
    } | null;
    floatingSubtreeIds: Set<string>;
    didDragRef: import("react").RefObject<boolean>;
    handleCanvasMouseDown: (e: React.MouseEvent) => void;
    handleMouseMove: (e: React.MouseEvent) => void;
    handleMouseUp: () => void;
    handleNodeMouseDown: (e: React.MouseEvent, nodeId: string) => void;
};
export {};