@mmote/niimbluelib/dist/print_tasks/AbstractPrintTask.d.ts

Library for the communication with NIIMBOT printers

import { EncodedImage } from "../image_encoder";
import { LabelType } from "../packets";
import { Abstraction } from "../packets/abstraction";
/**
 * Print options for print tasks.
 * @category Print tasks
 */
export type PrintOptions = {
    /** Printer label type */
    labelType: LabelType;
    /** Print density */
    density: number;
    /** How many pages will be printed */
    totalPages: number;
    /** Used in {@link AbstractPrintTask.waitForFinished} where status is received by polling */
    statusPollIntervalMs: number;
    /** Used in {@link AbstractPrintTask.waitForFinished} */
    statusTimeoutMs: number;
    /** Used in {@link AbstractPrintTask.printPage} */
    pageTimeoutMs: number;
};
/**
 * Different printer models have different print algorithms. Print task defines this algorithm.
 *
 * @example
 * ```ts
 * const quantity = 1;
 *
 * const printTask = client.abstraction.newPrintTask("D110", {
 *   totalPages: quantity
 * });
 *
 * try {
 *   await printTask.printInit();
 *   await printTask.printPage(encodedImage, quantity); // encode your canvas with ImageEncoder.encodeCanvas
 *   await printTask.waitForFinished();
 * } catch (e) {
 *   alert(e);
 * } finally {
 *   await client.abstraction.printEnd();
 * }
 * ```
 *
 * @category Print tasks
 **/
export declare abstract class AbstractPrintTask {
    protected abstraction: Abstraction;
    protected printOptions: PrintOptions;
    protected pagesPrinted: number;
    constructor(abstraction: Abstraction, printOptions?: Partial<PrintOptions>);
    /** Check added pages not does not exceed {@link pagesPrinted} */
    protected checkAddPage(quantity: number): void;
    /** Prepare print (set label type, density, print start, ...) */
    abstract printInit(): Promise<void>;
    /** Print image with a specified number of copies */
    abstract printPage(image: EncodedImage, quantity?: number): Promise<void>;
    /** Wait for print is finished */
    abstract waitForFinished(): Promise<void>;
    /** Printer's printhead resolution in pixels */
    protected printheadPixels(): number | undefined;
}