import * as React from 'react';
import { FormItem, IFormItemStates, IInputProps } from './common/FomItem';
export interface INumberAdjusterProps extends IInputProps {
    size: 'small' | 'medium' | 'large';
    variant: 'border-bottom' | 'full-border' | 'floating-label' | 'full-border-right-adjust';
    decimalPlace: number;
    step: number;
    maximumNumberValue: number;
    minimumNumberValue: number;
    unit: React.ReactNode;
}
export declare class NumberAdjuster extends FormItem<INumberAdjusterProps, IFormItemStates> {
    private containerRef;
    static defaultProps: INumberAdjusterProps;
    componentDidUpdate(prevProps: any, prevState: any): Promise<void>;
    componentDidMount(): void;
    render(): React.JSX.Element;
    validate(option?: {
        silentValidation?: boolean | undefined;
    }): string | undefined;
    protected valueToDisplayValue(value: string | null | undefined): string;
    private adjustUnitWidth;
    private isRightAdjuster;
    private getMinusButton;
    private onNumberChange;
    private onStepping;
    private handleFocus;
    private handleBlur;
}