/// <reference types="node" />
import { ViewStyle, TextStyle, ImageStyle } from 'react-native';
import { Buffer } from 'buffer';
import type { BarCodeSymbology, Codepage, EscPosOptions, EscPosState } from './Encoder';
export default class PreviewEncoder {
    protected _paperColor: string;
    protected _textColor: string;
    protected _options: EscPosOptions;
    protected _state: EscPosState;
    protected _styles: {
        text: TextStyle;
        image: ImageStyle;
        view: ViewStyle;
    };
    protected _embedded: boolean;
    protected _buffer: JSX.Element[];
    protected _queued: JSX.Element[];
    protected _cursor: number;
    protected _codepage: Codepage | 'auto' | 'ascii';
    protected _maxLineLength: number;
    /**
     * Create a new object
     *
     * @param  {object}   options   Object containing configuration options
     */
    constructor(options?: Partial<EscPosOptions>);
    /**
     * Reset the state of the object
     *
     * @param  {object}   options   Object containing configuration options
     */
    protected _reset(options?: Partial<EscPosOptions>): void;
    /**
     * Add commands to the queue
     *
     * @param  {array}   value  Add array of numbers, arrays, buffers or Uint8Arrays to add to the buffer
     *
     */
    protected _queue(value: JSX.Element[]): void;
    /**
     * Flush current queue to buffer
     */
    protected _flush(): void;
    /**
     * Restore styles and codepages after drawing boxes or lines
     */
    protected _restoreState(): void;
    /**
     * Initialize the printer
     *
     * @return Return self, for easy chaining commands
     */
    initialize(): this;
    /**
     * Change the code page
     *
     * @param _ The codepage that we set the printer to
     * @return Return self, for easy chaining commands
     */
    codepage(_: Codepage | 'auto' | 'ascii'): this;
    /**
     * Print text
     *
     * @param value Text that needs to be printed
     * @param wrap Wrap text after this many positions
     * @return Return self, for easy chaining commands
     */
    text(value: string, wrap?: number): this;
    /**
     * Print a newline
     *
     * @param size Size 0 - 255
     * @return Return self, for easy chaining commands
     */
    newline(size?: number): this;
    /**
     * Print text, followed by a newline
     *
     * @param value Text that needs to be printed
     * @param wrap Wrap text after this many positions
     * @return Return self, for easy chaining commands
     */
    line(value: string, wrap?: number): this;
    /**
     * Print an array of lines
     *
     * @param value Text that needs to be printed
     * @return Return self, for easy chaining commands
     */
    lines(value: string[]): this;
    /**
     * Print a key and a value with spaces or dots filling in between
     *
     * @param key Left item
     * @param value Right item
     * @param style Style of the spaces in between
     * @returns Return self, for easy chaining commands
     */
    keyvalue(key: string, value: string, style?: 'dots' | 'spaces'): this;
    /**
     * Underline text
     *
     * @param value `true` to turn on underline, `false` to turn off, or 2 for double underline
     * @returnReturn self, for easy chaining commands
     */
    underline(value?: boolean | number): this;
    /**
     * Italic text
     *
     * @param value `true` to turn on italic, `false` to turn off
     * @return Return self, for easy chaining commands
     */
    italic(value?: boolean): this;
    /**
     * Bold text
     *
     * @param value `true` to turn on bold, `false` to turn off
     * @return Return self, for easy chaining commands
     */
    bold(value?: boolean): this;
    /**
     * Change width of text
     *
     * @param width The width of the text, 1 - 3
     * @return Return self, for easy chaining commands
     */
    width(width?: number): this;
    /**
     * Change height of text
     *
     * @param height The height of the text, 1 - 3
     * @return Return self, for easy chaining commands
     */
    height(height?: number): this;
    /**
     * Invert text
     *
     * @param value `true` to turn on white text on black, `false` to turn off
     * @return Return self, for easy chaining commands
     */
    invert(value?: boolean): this;
    /**
     * Change text size
     *
     * @param value `'small'` or `'normal'`
     * @return Return self, for easy chaining commands
     */
    size(value?: 'small' | 'normal'): this;
    /**
     * Change text alignment
     *
     * @param value `'left'`, `'center'` or `'right'`, defaults to 'left'
     * @return Return self, for easy chaining commands
     */
    align(value?: 'left' | 'center' | 'right'): this;
    /**
     * Insert a horizontal rule
     *
     * @param width Defaults to max line length
     * @return Return self, for easy chaining commands
     */
    rule(width?: number): this;
    /**
     * Barcode
     *
     * @param value Barcode contents
     * @param symbology Barcode type
     * @param height Barcode height, defaults to `10`
     * @return Return self, for easy chaining commands
     */
    barcode(value: string, symbology: BarCodeSymbology, height?: number): this;
    /**
     * QR Code
     *
     * @param value QR Code contents
     * @param _ Model of the qrcode, either `1` or `2`
     * @param size Size of the qrcode, a value between `1` and `8`, defaults to `6`
     * @param size The amount of error correction used, either `'l'`, `'m'`, `'q'` or `'h'`
     * @return Return self, for easy chaining commands
     */
    qrcode(value: string, _model?: 1 | 2, size?: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8, errorLevel?: 'L' | 'M' | 'Q' | 'H'): this;
    /**
     * Prints image, supports PNG and JPEG
     *
     * @param base64 png base64
     * @param algorithm The dithering algorithm for making the image black and white
     * @param threshold Threshold for the dithering algorithm
     * @return Return self, for easy chaining commands
     */
    image(base64: string, algorithm?: 'threshold' | 'bayer' | 'floydsteinberg' | 'atkinson', threshold?: number): this;
    /**
     * Cut paper
     *
     * Polyfill
     * @return Return self, for easy chaining commands
     */
    cut(..._args: any[]): this;
    /**
     * Pulse
     *
     * Polyfill
     * @return Return self, for easy chaining commands
     */
    pulse(..._args: any[]): this;
    /**
     * Add raw printer commands
     *
     * !TODO: Finish this
     * @param  {array}           data   raw bytes to be included
     * @return {object}          Return self, for easy chaining commands
     */
    raw(data: (number | any[] | Uint8Array | Buffer)[]): this;
    /**
     * Encode all previous commands
     *
     * @return Return the encoded bytes
     */
    encode(): JSX.Element[];
}