import { Viewer } from "../Viewer";
import { OdBaseDragger } from "./Common/OdBaseDragger";
export declare class OdZoomDragger extends OdBaseDragger {
    private _zoomAction;
    protected pressX: number;
    protected pressY: number;
    protected absoluteX: number;
    protected absoluteY: number;
    protected prevY: number;
    constructor(subject: Viewer);
    start(x: number, y: number, absoluteX?: number, absoluteY?: number): void;
    drag(x: number, y: number): void;
    end(): void;
}