import { IPrinterDriver, IQrOptions } from '../types';
/**
 * ESC/POS driver options
 */
export interface EscPosOptions {
    /** Use the new EncodingService for better GBK support (default: true) */
    useEncodingService?: boolean;
    /** Show warnings for unsupported characters (default: true) */
    showEncodingWarnings?: boolean;
    /** Fallback character for unsupported characters (default: '?') */
    fallbackChar?: string;
}
/**
 * ESC/POS thermal printer driver
 *
 * Implements the standard ESC/POS command set used by most thermal receipt printers.
 * Supports text, images, QR codes, and paper control commands.
 *
 * @example
 * ```typescript
 * const driver = new EscPos();
 * const commands = [
 *   ...driver.init(),
 *   ...driver.text('Hello World!'),
 *   ...driver.feed(2),
 *   ...driver.cut()
 * ];
 * ```
 */
export declare class EscPos implements IPrinterDriver {
    private readonly logger;
    private readonly encodingService;
    private readonly useEncodingService;
    /**
     * Creates a new EscPos driver instance
     * @param options - Driver options
     */
    constructor(options?: EscPosOptions);
    /**
     * Initializes the printer
     * Sends ESC @ command to reset printer to default state
     *
     * @returns Array of command buffers
     */
    init(): Uint8Array[];
    /**
     * Generates text print command
     *
     * @param content - Text content to print
     * @param encoding - Text encoding (default: 'GBK')
     * @returns Array of command buffers
     *
     * @example
     * ```typescript
     * driver.text('你好世界', 'GBK');
     * ```
     */
    text(content: string, encoding?: string): Uint8Array[];
    /**
     * Generates line feed command
     *
     * @param lines - Number of lines to feed (default: 1)
     * @returns Array of command buffers
     *
     * @example
     * ```typescript
     * driver.feed(3); // Feed 3 lines
     * ```
     */
    feed(lines?: number): Uint8Array[];
    /**
     * Generates paper cut command
     *
     * @returns Array of command buffers
     *
     * @example
     * ```typescript
     * driver.cut();
     * ```
     */
    cut(): Uint8Array[];
    /**
     * Generates image print command
     * Uses Floyd-Steinberg dithering for better quality
     *
     * @param data - RGBA pixel data
     * @param width - Image width in pixels
     * @param height - Image height in pixels
     * @returns Array of command buffers
     *
     * @example
     * ```typescript
     * const imageData = new Uint8Array(width * height * 4); // RGBA
     * driver.image(imageData, 200, 100);
     * ```
     */
    image(data: Uint8Array, width: number, height: number): Uint8Array[];
    /**
     * Generates QR code print command
     *
     * @param content - QR code content (URL, text, etc.)
     * @param options - QR code options
     * @returns Array of command buffers
     *
     * @example
     * ```typescript
     * driver.qr('https://example.com', {
     *   model: 2,
     *   size: 8,
     *   errorCorrection: 'M'
     * });
     * ```
     */
    qr(content: string, options?: IQrOptions): Uint8Array[];
    /**
     * ESC/POS: Open cash drawer (钱箱控制)
     * Sends ESC p command to trigger cash drawer kick-out
     *
     * @param pin - Cash drawer pin (0 or 1, default: 0)
     * @returns Array of command buffers
     */
    openCashDrawer(pin?: number): Uint8Array[];
    /**
     * ESC/POS: Sound buzzer (蜂鸣器)
     * Sends ESC B command to activate the printer's built-in buzzer
     *
     * @param times - Number of beeps (1-9, default: 3)
     * @param duration - Duration in ms (default: 50)
     * @returns Array of command buffers
     */
    beep(times?: number, duration?: number): Uint8Array[];
    /**
     * ESC/POS: Self test (自检)
     * Sends ESC i command to print a self-test page and return status
     *
     * @returns Array of command buffers
     */
    selfTest(): Uint8Array[];
    /**
     * ESC/POS: Get printer status (状态查询)
     * Sends DLE EOT n commands to query printer, offline, error, and paper status
     *
     * @returns Array of command buffers (4 status queries)
     */
    getStatus(): Uint8Array[];
    /**
     * ESC/POS: Set character code page (代码页设置)
     * Sends ESC t command to select character code page
     *
     * @param codePage - Code page number (0-255)
     * @returns Array of command buffers
     */
    setCodePage(codePage: number): Uint8Array[];
    /**
     * ESC/POS: Set left margin (左边界设置)
     * Sends ESC l command to set left margin in characters
     *
     * @param n - Number of characters from left edge
     * @returns Array of command buffers
     */
    setLeftMargin(n: number): Uint8Array[];
    /**
     * ESC/POS: Set print area width (打印区域宽度)
     * Sends ESC W command to set print width in characters
     *
     * @param n - Width in characters
     * @returns Array of command buffers
     */
    setPrintWidth(n: number): Uint8Array[];
}