import { ConfigurationChunk, chunkOptions, image, imageOptions, line } from '../tools/formatters';
import { LineSegment, PrinterImageBase } from './base-printer-language';
import * as utils from '../tools/utils';
import * as formatters2 from '../tools/formatters';
import { TextPrinterLanguage } from './text-printer-language';
/**
 * This class is used to convert images to a format that can be printed by zebra printers.
 */
export declare class EscP2Image {
    private rawData;
    private width;
    private height;
    private font;
    /**
    * Creates temporary html content, in order to draw the image and get it's data
    */
    private createCanvas;
    /**
     * Removes all temporary html content, in order to preserve the view layout
     */
    private clearCanvas;
    private b64tou8;
    private createImageFromText;
    /**
     * Merges multiple base64 images side by side (horizontally) into one image.
     * @param imagesBase64 Array of base64 image strings (without data URL prefix)
     * @param height Height of the resulting image (all images must have the same height)
     * @returns Uint8Array of the merged image in JPEG format
     */
    protected loadImage(imageSrc: any, width?: number, height?: number): Promise<HTMLImageElement>;
    createMergedImage(imagesBase64Array: Array<{
        data: string;
        width: number;
        height: number;
        offset?: number;
    }>, options?: imageOptions): Promise<string>;
    private setCanvasFont;
    private drawText;
    private createImage;
    constructor(rawData: any, width: any, height: any, font: any);
    /**
 *
 * @returns {string} a string containing the image data in bytes.
 */
    toImageFromText(options?: imageOptions): string;
    /**
     *
     * @returns {object} an object containing the image data in hexadecimal format, as well additional information about the image
     */
    toImage(): PrinterImageBase;
    mergeImages(images: Array<image | line>, width: number, height: number, options?: imageOptions): Promise<string>;
}
/**
 * This class implements the Epson ESC/P2 printer language used various printer brands.
 */
export declare class EscP2Language extends TextPrinterLanguage {
    constructor();
    /** @ignore  */
    protected lines: any[];
    /** Can be used to increase the document height if necessary */
    additionalDocumentHeight: number;
    /**
     * Generates the commands for printing the document
     * @returns
     */
    printDocument(): string;
    printDocumentAsync(): Promise<string>;
    init(config?: any): void;
    changeConfiguration(chunk: ConfigurationChunk): void;
    renderWord(word: string, options?: chunkOptions): string;
    /**
     * Use to print an image.
     * @param imageDataInBase64 - Contains the image data in a format that can be printed by ESC/P2 printers.
     * If this parameter is null, empty or undefined, the method will do nothing.
     * @param width - The width of the image in pixels
     * @param height - The width of the image in pixels
     * @param alignment - How the image is aligned on the paper
     */
    printImage(imageDataInBase64: any, width: number, height: number, alignment: utils.Alignment, options: imageOptions): void;
    printImageRow(images: Array<image | line>, width: number, height: number, alignment: utils.Alignment, options?: imageOptions): Promise<void>;
    /**
     * Used to print a text line on the paper.
     * @param line - An array of LineSegment objects. Each LineSegment object contains the text to print and the style to use.
     */
    printLine(line: Array<LineSegment>): void;
    printBarcode(barcodeData: string, barcodeType: utils.Barcode, height: number, width: number, offset: number, alignment: utils.Alignment, options?: formatters2.barcodeOptions): void;
}