import { OverlayRef } from '@angular/cdk/overlay';
import { AnchorPlacement } from '../../common/overlay/index';
import * as i0 from "@angular/core";
export declare class OverlayPlacementService {
    /** Updates the position of the current menu. */
    updatePosition(overlayRef: OverlayRef, placement: string, alignment: string, customFallbackPlacement?: AnchorPlacement): void;
    /** Apply position to position strategy */
    private addPositions;
    /** Get the origin position based on the specified tooltip placement */
    private getOrigin;
    /** Calculate the overlay position based on the specified tooltip placement */
    private getOverlayPosition;
    /** Convert the alignment property to a valid CDK alignment value */
    private getVerticalAlignment;
    /** Inverts an overlay position. */
    private invertPosition;
    invertHorizontalPosition(y: string): 'top' | 'center' | 'bottom';
    private getFallbackPosition;
    static ɵfac: i0.ɵɵFactoryDeclaration<OverlayPlacementService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<OverlayPlacementService>;
}