import { ElementRef, OnInit, Renderer } from '@angular/core';
export declare class ScrollAnimationDirective implements OnInit {
    private _el;
    private _renderer;
    private _window;
    constructor(_el: ElementRef, _renderer: Renderer, _window: Window);
    sc: {
        ref?: ElementRef;
        offset?: number;
        class?: string;
        delay: number;
        hideInitial?: boolean;
    };
    onScroll(): void;
    onResize(): void;
    top: number;
    windowHeight: number;
    hasClass: boolean;
    options: {
        ref: ElementRef;
        offset: number;
        class: string;
        delay: number;
        hideInitial: boolean;
        removeAfter: number;
    };
    ngOnInit(): void;
    private _setTop();
    private _hideInitial();
}