/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */
import { CdkConnectedOverlay } from '@angular/cdk/overlay';
import { VtsDestroyService } from '@ui-vts-kit/ng-vts/core/services';
import * as i0 from "@angular/core";
export declare class VtsConnectedOverlayDirective {
    private cdkConnectedOverlay;
    private readonly vtsDestroyService;
    vtsArrowPointAtCenter: boolean;
    constructor(cdkConnectedOverlay: CdkConnectedOverlay, vtsDestroyService: VtsDestroyService);
    private updateArrowPosition;
    private getFlexibleConnectedPositionStrategyOrigin;
    private getOriginRect;
    static ɵfac: i0.ɵɵFactoryDeclaration<VtsConnectedOverlayDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<VtsConnectedOverlayDirective, "[cdkConnectedOverlay][vtsConnectedOverlay]", ["vtsConnectedOverlay"], { "vtsArrowPointAtCenter": { "alias": "vtsArrowPointAtCenter"; "required": false; }; }, {}, never, never, false, never>;
}