import { EventEmitter } from '@angular/core';
import { ControlValueAccessor } from '@angular/forms';
import * as i0 from "@angular/core";
export declare class MdlZoomButtonComponent implements ControlValueAccessor {
    disabled: boolean;
    maxZoom: number;
    minZoom: number;
    zoomValue: number;
    zoomValueChange: EventEmitter<number>;
    getZoomValueString(): string;
    registerOnChange(fn: any): void;
    registerOnTouched(fn: any): void;
    setDisabledState(isDisabled: boolean): void;
    writeValue(zoomValue: number): void;
    protected changeZoom(amount: number): void;
    protected resetZoom(): void;
    private onChange;
    private onTouched;
    static ɵfac: i0.ɵɵFactoryDeclaration<MdlZoomButtonComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<MdlZoomButtonComponent, "mdl-zoom-button", never, { "disabled": { "alias": "disabled"; "required": false; }; "maxZoom": { "alias": "maxZoom"; "required": false; }; "minZoom": { "alias": "minZoom"; "required": false; }; "zoomValue": { "alias": "zoomValue"; "required": false; }; }, { "zoomValueChange": "zoomValueChange"; }, never, never, true, never>;
}