import { AfterViewInit, ElementRef, OnChanges, OnInit, Renderer2, SimpleChanges } from '@angular/core';
export declare class AngularFittextDirective implements AfterViewInit, OnInit, OnChanges {
    private el;
    private renderer;
    fittext?: boolean;
    compression?: number;
    activateOnResize?: boolean;
    minFontSize?: number | 'inherit';
    maxFontSize?: number | 'inherit';
    delay?: number;
    ngModel: any;
    fontUnit?: 'px' | 'em' | string;
    private fittextParent;
    private fittextElement;
    private fittextMinFontSize;
    private fittextMaxFontSize;
    private computed;
    private newlines;
    private lineHeight;
    private display;
    private calcSize;
    private resizeTimeout;
    constructor(el: ElementRef, renderer: Renderer2);
    onWindowResize: () => void;
    ngOnInit(): void;
    ngAfterViewInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    private setFontSize;
    private calculateNewFontSize;
    private setStyles;
}