/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { PositionStrategy } from './position/position-strategy';
import { Direction, Directionality } from '@angular/cdk/bidi';
import { ScrollStrategy } from './scroll/scroll-strategy';
/** Initial configuration used when creating an overlay. */
export declare class OverlayConfig {
    /** Strategy with which to position the overlay. */
    positionStrategy?: PositionStrategy;
    /** Strategy to be used when handling scroll events while the overlay is open. */
    scrollStrategy?: ScrollStrategy;
    /** Custom class to add to the overlay pane. */
    panelClass?: string | string[];
    /** Whether the overlay has a backdrop. */
    hasBackdrop?: boolean;
    /** Custom class to add to the backdrop */
    backdropClass?: string | string[];
    /** The width of the overlay panel. If a number is provided, pixel units are assumed. */
    width?: number | string;
    /** The height of the overlay panel. If a number is provided, pixel units are assumed. */
    height?: number | string;
    /** The min-width of the overlay panel. If a number is provided, pixel units are assumed. */
    minWidth?: number | string;
    /** The min-height of the overlay panel. If a number is provided, pixel units are assumed. */
    minHeight?: number | string;
    /** The max-width of the overlay panel. If a number is provided, pixel units are assumed. */
    maxWidth?: number | string;
    /** The max-height of the overlay panel. If a number is provided, pixel units are assumed. */
    maxHeight?: number | string;
    /**
     * Direction of the text in the overlay panel. If a `Directionality` instance
     * is passed in, the overlay will handle changes to its value automatically.
     */
    direction?: Direction | Directionality;
    constructor(config?: OverlayConfig);
}
