import { OnInit, ElementRef, EventEmitter, OnDestroy } from '@angular/core';
import { BreakpointObserver, MediaMatcher } from '@angular/cdk/layout';
import * as i0 from "@angular/core";
/**
 * Emits a string that can be used to visualize the current bootstrap breakpoint.
 * For more info, see https://getbootstrap.com/docs/5.0/layout/breakpoints/
 */
export declare class BootstrapBreakpointComponent implements OnInit, OnDestroy {
    mediaMatcher: MediaMatcher;
    breakPointObserver: BreakpointObserver;
    bootstrapBreakpointComponent: ElementRef;
    /**
     * Event that emits bootstrap breakpoint value
     * @type EventEmitter<string>
     * @public
     */
    bootstrapBreakpoint: EventEmitter<string>;
    /**
     * Event that emits bootstrap breakpoint value with a hyphen at the start.
     * F.I: -sm, -xs, -xxl
     *
     * @type EventEmitter<string>
     * @public
     */
    bootstrapBreakpointStart: EventEmitter<string>;
    /**
     * Event that emits bootstrap breakpoint value with a hyphen at the end.
     * F.I: sm-, xs-, xxl-
     * @type EventEmitter<string>
     * @public
     */
    bootstrapBreakpointEnd: EventEmitter<string>;
    /**
     * Event that emits bootstrap breakpoint value with a hyphen both at the start and end.
     * F.I: -sm-, -xs-, -xxl-
     * @type EventEmitter<string>
     * @public
     */
    bootstrapBreakpointStartEnd: EventEmitter<string>;
    private _bootstrapBreakpoint;
    private _matcher;
    private _mediaQueries;
    constructor(mediaMatcher: MediaMatcher, breakPointObserver: BreakpointObserver);
    ngOnInit(): void;
    private getBreakpointFromMediaQuery;
    private handleMediaQueryListEvent;
    private observeMediaQueries;
    private setVariables;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<BootstrapBreakpointComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<BootstrapBreakpointComponent, "ngxtoolset-bootstrap-breakpoint", never, {}, { "bootstrapBreakpoint": "bootstrapBreakpoint"; "bootstrapBreakpointStart": "bootstrapBreakpointStart"; "bootstrapBreakpointEnd": "bootstrapBreakpointEnd"; "bootstrapBreakpointStartEnd": "bootstrapBreakpointStartEnd"; }, never, never, false>;
}