import { InjectOptions, OnChanges, OnDestroy, OnInit, SimpleChanges } from '@angular/core';
import { Size } from 'ol/size';
import { Fill, Stroke } from 'ol/style';
import { DeclutterMode } from 'ol/style/Style';
import CircleStyle, { Options } from 'ol/style/Circle';
import { NolPrefixedOptions } from 'ngx-ol-library/core';
import * as i0 from "@angular/core";
/**
 * The component that set circle style for vector features.
 * @name nol-circle-style
 * @order 1
 */
export declare class NolCircleStyleComponent implements NolPrefixedOptions<Options>, OnInit, OnChanges, OnDestroy {
    nolFill?: Fill;
    nolRadius: number;
    nolStroke?: Stroke;
    nolDisplacement?: number[];
    nolScale?: number | Size;
    nolRotation?: number;
    nolRotateWithView?: boolean;
    nolDeclutterMode?: DeclutterMode;
    private readonly host;
    private instance;
    getInstance(): CircleStyle;
    update(): void;
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NolCircleStyleComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NolCircleStyleComponent, "nol-circle-style", ["nolCircleStyle"], { "nolFill": { "alias": "nolFill"; "required": false; }; "nolRadius": { "alias": "nolRadius"; "required": false; }; "nolStroke": { "alias": "nolStroke"; "required": false; }; "nolDisplacement": { "alias": "nolDisplacement"; "required": false; }; "nolScale": { "alias": "nolScale"; "required": false; }; "nolRotation": { "alias": "nolRotation"; "required": false; }; "nolRotateWithView": { "alias": "nolRotateWithView"; "required": false; }; "nolDeclutterMode": { "alias": "nolDeclutterMode"; "required": false; }; }, {}, never, ["*"], true, never>;
}
export declare function useCircleStyle(): NolCircleStyleComponent;
export declare function useCircleStyle(options: InjectOptions & {
    optional?: false;
}): NolCircleStyleComponent;
export declare function useCircleStyle(options: InjectOptions): NolCircleStyleComponent | null;