@cutos/device-tspl-printer/dist/device-tspl-printer.js

@cutos/device-tspl-printer is a JavaScript library that provides a unified interface for accessing and controlling printers that support the TSPL command set.

import { CoreClass } from '@cutos/core';

const TYPE = 'device-tspl-printer';

const CMD = {
    CONNECT: 'connect',
    PRINT: 'print',
};

class DeviceTSPLPrinter extends CoreClass.Device {
    constructor(name, callback) {
        super(name, TYPE, callback);
        this.commands = [];
    }

    connect(path, callback) {
        this.sendCommand({cmd: CMD.CONNECT, args: {path: path}}, callback);
    }

    setLabelSize(width, height) {
        const cmd = `SIZE ${width} mm, ${height} mm`;
        this.commands.push(cmd);
    }

    setLabelGap(gap) {
        const cmd = `GAP ${gap} mm, 0 mm`;
        this.commands.push(cmd);
    }

    setDirection(direction = 0, mirror = 0) {
        const cmd = `DIRECTION ${direction},${mirror}}`;
        this.commands.push(cmd);
    }

    setClearBuff() {
        const cmd = "CLS";
        this.commands.push(cmd);
    }

    addText(text, x, y, opts = {}) {
        const default_opts = {font: '24', rotation: 0, align: 0, mx: 1, my: 1};
        const merged_opts = {...default_opts, ...opts};
        const {font, rotation, align, mx, my} = merged_opts;
        const cmd = `TEXT ${x},${y},"${font}",${rotation},${mx},${my},${align},"${text}"`;
        this.commands.push(cmd);
    }


    addQRCode(content, x, y, opts = {}) {
        const default_opts = {level: 'H', cw: 4, mode: 0, rotation: 0};
        const merged_opts = {...default_opts, ...opts};
        const {level, cw, mode, rotation} = merged_opts;
        const cmd = `QRCODE ${x},${y},${level},${cw},${mode},${rotation},"${content}"`;
        this.commands.push(cmd);
    }

    addBox(x, y, width, height, thick, radius = 0) {
        const cmd = `BOX ${x},${y},${width},${height},${thick},${radius}`;
        this.commands.push(cmd);
    }

    print(callback) {
        let data = '';
        this.commands.push('PRINT 1,1');
        data = this.commands.join('\r\n');
        data += '\r\n';
        this.commands.length = 0;
        this.sendCommand({cmd: CMD.PRINT, args: {data: data}}, callback);
        console.log(data);
    }
}

export { DeviceTSPLPrinter };