import { EventEmitter, InjectOptions, OnChanges, OnDestroy, OnInit, SimpleChanges } from '@angular/core';
import { MapEvent } from 'ol';
import { ObjectEvent } from 'ol/Object';
import BaseEvent from 'ol/events/Event';
import ScaleLine, { Options, Units } from 'ol/control/ScaleLine';
import { NolPrefixedOptions, NolSafeAny } from 'ngx-ol-library/core';
import * as i0 from "@angular/core";
/**
 * A control component displaying rough y-axis distances, calculated for the
 * center of the viewport.
 * @name nol-scale-line-control
 * @order 1
 */
export declare class NolScaleLineControlComponent implements NolPrefixedOptions<Options>, OnInit, OnChanges, OnDestroy {
    nolClassName?: string;
    nolMinWidth?: number;
    nolMaxWidth?: number;
    nolRender?: ((event: MapEvent) => void);
    nolTarget?: string | HTMLElement;
    nolUnits?: Units;
    nolBar?: boolean;
    nolSteps?: number;
    nolText?: boolean;
    nolDpi?: number;
    nolProperties?: Record<string, NolSafeAny>;
    nolChange: EventEmitter<BaseEvent>;
    nolUnitsChange: EventEmitter<Units>;
    nolError: EventEmitter<BaseEvent>;
    nolPropertychange: EventEmitter<ObjectEvent>;
    private readonly cdr;
    private readonly destroyRef;
    private readonly host;
    private instance;
    getInstance(): ScaleLine;
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NolScaleLineControlComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NolScaleLineControlComponent, "nol-scale-line-control", ["nolScaleLineControl"], { "nolClassName": { "alias": "nolClassName"; "required": false; }; "nolMinWidth": { "alias": "nolMinWidth"; "required": false; }; "nolMaxWidth": { "alias": "nolMaxWidth"; "required": false; }; "nolRender": { "alias": "nolRender"; "required": false; }; "nolTarget": { "alias": "nolTarget"; "required": false; }; "nolUnits": { "alias": "nolUnits"; "required": false; }; "nolBar": { "alias": "nolBar"; "required": false; }; "nolSteps": { "alias": "nolSteps"; "required": false; }; "nolText": { "alias": "nolText"; "required": false; }; "nolDpi": { "alias": "nolDpi"; "required": false; }; "nolProperties": { "alias": "nolProperties"; "required": false; }; }, { "nolChange": "nolChange"; "nolUnitsChange": "nolUnitsChange"; "nolError": "nolError"; "nolPropertychange": "nolPropertychange"; }, never, ["*"], true, never>;
}
export declare function useScaleLineControl(): NolScaleLineControlComponent;
export declare function useScaleLineControl(options: InjectOptions & {
    optional?: false;
}): NolScaleLineControlComponent;
export declare function useScaleLineControl(options: InjectOptions): NolScaleLineControlComponent | null;