import Viewer from 'viewerjs';
import * as i0 from "@angular/core";
export interface ViewerConfig {
    navbar?: boolean;
    toolbar?: {
        zoomIn?: boolean;
        zoomOut?: boolean;
        reset?: boolean;
        rotateLeft?: boolean;
        rotateRight?: boolean;
        prev?: boolean;
        next?: boolean;
    };
    initialViewIndex?: number;
}
export declare class NgtReactiveDropzoneViewerService {
    private readonly defaultConfig;
    createImagePreview(resources: any[], filterCallback: (resource: any) => boolean): HTMLElement;
    showViewer(element: HTMLElement, index?: number, onHidden?: () => void, customConfig?: Partial<ViewerConfig>): Viewer;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgtReactiveDropzoneViewerService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NgtReactiveDropzoneViewerService>;
}