import { Object3D } from 'three/webgpu';
import { DIVEDraggable } from '../../../../index.ts';
import { OrbitController } from '../../../orbitcontroller/index.ts';
import { Tool } from '../Tool.ts';
import { PointerContext } from '../PointerContext.ts';
/**
 * Tool for handling drag operations on objects.
 *
 * Detects DIVEDraggable objects and triggers their drag callbacks.
 * Blocks other tools while a drag operation is in progress.
 *
 * @module
 */
export declare class DragTool implements Tool {
    readonly name = "drag";
    readonly priority = 10;
    private _controller;
    private _raycaster;
    private _dragging;
    private _draggable;
    private _dragStart;
    private _dragCurrent;
    private _dragEnd;
    private _dragDelta;
    private _dragRaycastTargets;
    constructor(controller: OrbitController);
    /**
     * Whether a drag operation is currently in progress.
     */
    get isDragging(): boolean;
    /**
     * The object currently being dragged, or null.
     */
    get draggable(): (Object3D & DIVEDraggable) | null;
    onActivate(): void;
    onDeactivate(): void;
    onPointerDown(ctx: PointerContext): void;
    onPointerMove(ctx: PointerContext): boolean | void;
    onPointerUp(ctx: PointerContext): void;
    /**
     * Set custom objects to raycast against during drag.
     * Useful for constraining drag to a floor plane.
     *
     * @param targets Objects to raycast against, or null to use scene objects
     */
    setDragRaycastTargets(targets: Object3D[] | null): void;
    private startDrag;
    private updateDrag;
    private endDrag;
    private getDragIntersect;
    private createDragEvent;
    private resetDragState;
}