import { AfterViewInit, ChangeDetectorRef, ElementRef, EventEmitter, OnInit, TemplateRef } from '@angular/core';
import { NgxPictureConfig } from '../ngx-picture-config';
import * as i0 from "@angular/core";
export type ImageFormat = 'apng' | 'bmp' | 'gif' | 'jpeg' | 'png' | 'svg' | 'tiff' | 'webp' | 'jp2' | 'jxr';
export declare class PictureComponent implements OnInit, AfterViewInit {
    private platformId;
    private ngxPictureConfig;
    private window;
    private elementRef;
    private changeDetectorRef;
    imgTemplate: TemplateRef<HTMLImageElement> | undefined;
    src: string | undefined;
    imageFormats: any[] | undefined;
    breakpoints: {
        [key: string]: number;
    };
    alt: string | undefined;
    lazyLoad: boolean;
    srcInterpolator: (url: string | undefined, imageFormat: ImageFormat, breakpoint: string, breakpointValue: number) => string | undefined;
    loaded: EventEmitter<Event>;
    show: boolean;
    private intersectionObserver;
    constructor(platformId: any, ngxPictureConfig: NgxPictureConfig, window: Window, elementRef: ElementRef, changeDetectorRef: ChangeDetectorRef);
    ngOnInit(): void;
    ngAfterViewInit(): void;
    private showLazyPicture;
    static ɵfac: i0.ɵɵFactoryDeclaration<PictureComponent, [null, null, { optional: true; }, null, null]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<PictureComponent, "ngx-picture", never, { "src": { "alias": "src"; "required": false; }; "imageFormats": { "alias": "imageFormats"; "required": false; }; "breakpoints": { "alias": "breakpoints"; "required": false; }; "alt": { "alias": "alt"; "required": false; }; "lazyLoad": { "alias": "lazyLoad"; "required": false; }; "srcInterpolator": { "alias": "srcInterpolator"; "required": false; }; }, { "loaded": "loaded"; }, ["imgTemplate"], never, false, never>;
}