import { PrinterAlign, PrinterCutType, PrinterTextFont } from "./Printer.enums";
import { AddSymbolOptions, AddTextOptions, TextSize, TextStyle } from "./Printer.types";
import { PaperSize } from "../providers/PrinterProvider.enum";
export declare class Printer {
    private static readonly TIMEOUT;
    private static readonly HEARTBEAT_XML;
    private printerIp;
    private paperSize;
    private textFont;
    private textSize;
    private textStyle;
    private cursorX;
    private xmlChunks;
    constructor(printerIp: string, paperSize: PaperSize);
    addXmlChunk: (xmlChunk: string) => void;
    setXmlChunks: (xmlChunks: string[]) => void;
    getXmlChunks: () => string[];
    private reset;
    addText(text: string, { rightPadding, addNewLine, alignRight, capitalize }?: AddTextOptions): void;
    addNewLine(): void;
    setTextFont(font: PrinterTextFont): void;
    setTextStyle({ reverse, ul, em, color }: Partial<TextStyle>): void;
    setTextSize(textSize: TextSize): void;
    setTextAlign(align: PrinterAlign): void;
    addFeedLine(line: number): void;
    addCut(type?: PrinterCutType): void;
    /**
     * Adds a 2D barcode symbol to the print buffer in XML format.
     *
     * @param {string} data - The content/data to encode within the symbol.
     *
     * @param {Object} options - Configuration options for the symbol.
     * @param {PrintSymbolType} options.type - The type of 2D code to print (e.g. QR Code, PDF417, etc.).
     * @param {AllowedPrintSymbolLevel} options.level - Error correction level or symbol quality level,
     * depending on the barcode type.
     * @param {number} [options.width] - Optional. Specifies the width of each module (square block) in dots.
     *
     * - The valid range is:
     *    - **QR Code**: 1 to 16 (default = 3)
     *    - **PDF417**: 2 to 8 (default = 3)
     *    - **Aztec/DataMatrix/GS1 DataBar**: 2 to 16 or 2 to 8 depending on type
     *    - **MaxiCode**: Ignored
     *
     * @param {number} [options.height] - Optional. Specifies the height of each module in dots.
     *
     * - Only applies to **PDF417**, range: 2 to 8 (default = 3). For other types, height is ignored.
     *
     * @param {number} [options.size] - Optional. Size-specific attribute depending on symbol type:
     *
     * - **PDF417**: Specifies number of codewords per row (default = 0)
     * - **GS1 DataBar (Expanded Stacked)**: Specifies maximum width (default = 0 for auto)
     * - **Others (QR Code, MaxiCode, Aztec, DataMatrix)**: Ignored
     *
     * @returns {void}
     */
    addSymbol(data: string, { type, level, width, height, size }: AddSymbolOptions): void;
    addHorizontalLine(): void;
    toXml(): string;
    checkOnline(): Promise<boolean>;
    send(): Promise<void>;
    private escapeXml;
    private sendRequest;
    private getCharactersPerLine;
}