/// <reference types="lodash" />
import { ContainerElement } from "../interface";
declare type DragRect = {
    top: number;
};
declare class ElementDragTool {
    dragBlock: HTMLElement | null;
    rootContainerRect: DragRect | null;
    scrollContainer: HTMLElement | null;
    body: HTMLElement;
    lastClientY: number;
    zoom: number;
    onDragging: ((event: MouseEvent) => void) | null;
    callback: (() => void) | null;
    constructor();
    createImageDragTool(event: MouseEvent, rootContainer: ContainerElement, image: HTMLImageElement, onDragging: (event: MouseEvent) => void, callback: () => void): HTMLElement;
    createElementDragTool(event: MouseEvent, dragElement: HTMLElement, rootContainer: ContainerElement, onDragging: (event: MouseEvent) => void, onDragEnd: () => void): void;
    updateBody(): void;
    getComputedNumber(px: number): number;
    onMouseMove: (event: MouseEvent) => void;
    onScroll: import("lodash").DebouncedFunc<(event: MouseEvent | Event) => void>;
    onDragEnd: () => void;
}
declare const _default: ElementDragTool;
export default _default;