import { OnChanges, OnDestroy, OnInit } from '@angular/core';
import { WatermarkOptions } from './types';
import * as i0 from "@angular/core";
export declare class WatermarkDirective implements OnInit, OnChanges, OnDestroy {
    options: WatermarkOptions;
    container?: HTMLElement | string | null;
    secure: boolean;
    zIndex: number;
    scrollHeight?: string | number;
    private _elementRef;
    private _ngZone;
    private _watermark?;
    ngOnInit(): void;
    ngOnChanges(): void;
    ngOnDestroy(): void;
    update(options: WatermarkOptions): void;
    show(): void;
    hide(): void;
    destroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<WatermarkDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<WatermarkDirective, "[watermark]", ["watermark"], { "options": { "alias": "watermarkOptions"; "required": false; }; "container": { "alias": "watermarkContainer"; "required": false; }; "secure": { "alias": "watermarkSecure"; "required": false; }; "zIndex": { "alias": "watermarkZIndex"; "required": false; }; "scrollHeight": { "alias": "watermarkScrollHeight"; "required": false; }; }, {}, never, never, true, never>;
    static ngAcceptInputType_secure: unknown;
    static ngAcceptInputType_zIndex: unknown;
}