import { BarcodeBaseProps, BarcodeBasePropsNoUndefined, BarcodeBase } from './BarcodeBase';
export interface ItfProps extends BarcodeBaseProps {
    addCheckDigit?: boolean;
    narrowWidth?: number;
    wideWidth?: number;
}
export interface ItfPropsNoUndefined extends BarcodeBasePropsNoUndefined {
    addCheckDigit: boolean;
    narrowWidth: number;
    wideWidth: number;
}
export declare const itfPropsDefault: ItfPropsNoUndefined;
export declare class Itf extends BarcodeBase<ItfProps> {
    constructor(props: ItfProps);
    protected calcSymbolSize(data: string, startChar: string, stopChar: string, cdChar: string): {
        tw: number;
        th: number;
    };
    protected calcItfMod10W3Checksum(data: string): string;
    protected encodeData(data: string): {
        data: string;
        heightData?: string;
        labelText?: string;
        startChar: string;
        stopChar: string;
    };
    protected getBarSpaceWidth(): number[];
}