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designer.js
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designer.js
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/*
Copyright 2019 Open Foodservice System Consortium
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
// QR Code is a registered trademark of DENSO WAVE INCORPORATED.
const http = require('http');
const path = require('path');
const fs = require('fs');
const net = require('net');
const receiptline = require('receiptline');
const iconv = require('iconv-lite');
const PNG = require('pngjs').PNG;
const qrcode = require('./lib/qrcode-generator/qrcode.js');
const servers = require('./servers.json');
let puppeteer;
try {
puppeteer = require('puppeteer');
}
catch (e) {
// nothing to do
}
let sharp;
try {
sharp = require('sharp');
}
catch (e) {
// nothing to do
}
// Serial-LAN Converter
if ('serial' in servers) {
const serialport = require('serialport');
const serial = net.createServer(conn => {
const parity = { n: 'none', e: 'even', o: 'odd' };
const dev = /^([^:]*)(:((?:24|48|96|192|384|576|1152)00),?([neo]),?([78]),?([12]),?([nrx]?)$)?/i.exec(servers.serial.device);
const opt = { baudRate: 9600, autoOpen: false };
if (dev[2]) {
opt.baudRate = Number(dev[3]);
opt.parity = parity[dev[4].toLowerCase()];
opt.dataBits = Number(dev[5]);
opt.stopBits = Number(dev[6]);
opt.rtscts = /r/i.test(dev[7]);
opt.xon = opt.xonff = /x/i.test(dev[7]);
}
let port;
if ('SerialPort' in serialport) {
opt.path = dev[1];
port = new serialport.SerialPort(opt);
}
else {
port = new serialport(dev[1], opt);
}
port.on('error', err => {
console.log(err);
conn.destroy();
});
port.on('open', () => {
conn.pipe(port).pipe(conn);
conn.on('end', () => port.unpipe(conn));
conn.on('close', had_error => port.drain(err => port.close()));
});
port.open();
});
serial.maxConnections = 1;
serial.listen(servers.serial.port, () => {
console.log(`Serial-LAN converter running at ${servers.serial.host}:${servers.serial.port}`);
});
}
// Virtual Printer
if ('print' in servers) {
const printer = net.createServer(conn => {
conn.on('data', data => {
console.log('Virtual printer received:');
const hex = (data.toString('hex').replace(/../g, ' $&').replace(/.{24}/g, '$& ') + ' '.repeat(49)).match(/.{50}/g);
const bin = (data.toString('binary').replace(/[^ -~]/g, '.') + ' '.repeat(15)).match(/.{16}/g);
bin.forEach((b, i) => console.log(`${('0'.repeat(7) + (i << 4).toString(16)).slice(-8)} ${hex[i]} ${b}`));
conn.write('\x00');
});
});
printer.listen(servers.print.port, () => {
console.log(`Virtual printer running at ${servers.print.host}:${servers.print.port}`);
});
}
// ReceiptLine Server
if ('http' in servers) {
const server = http.createServer((req, res) => {
req.setEncoding('utf8');
let pathname = new URL(req.url, `http://${req.headers.host}`).pathname;
switch (req.method) {
case 'GET':
if (pathname === '/') {
pathname = '/index.html';
}
fs.readFile(servers.http.root + pathname, (err, data) => {
if (err) {
res.writeHead(404);
res.end();
}
else {
res.writeHead(200, {'Content-Type': servers.http.mime[path.extname(pathname)] || servers.http.mime['.txt']});
res.end(data);
}
});
break;
case 'POST':
fs.readFile('./printers.json', 'utf8', (err, data) => {
if (err) {
res.writeHead(500);
res.end();
}
else {
let printers = {};
try {
printers = JSON.parse(data);
}
catch (e) {
// nothing to do
}
const pid = pathname.slice(1);
if (pid in printers) {
let text = '';
req.on('data', chunk => text += chunk);
req.on('end', () => {
const printer = printers[pid];
printer.resolution = printer.resolution === 180 ? 180 : 203;
const host = printer.host || '127.0.0.1';
const port = printer.port || 19100;
const sock = net.connect(port, host);
let drain = false;
sock.on('connect', () => {
transform(text, printer).then(command => {
drain = sock.write(command, /^(svg|text)$/.test(printer.command) ? 'utf8' : 'binary');
});
});
sock.on('data', data => {
if (drain) {
sock.end();
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('success');
drain = false;
}
});
sock.on('drain', () => {
drain = true;
});
sock.on('timeout', () => {
sock.end();
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('failure');
});
sock.on('error', () => {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('failure');
});
sock.setTimeout(servers.http.timeout);
});
}
else {
res.writeHead(404);
res.end();
}
}
});
break;
default:
res.end();
break;
}
});
server.listen(servers.http.port, servers.http.host, () => {
console.log(`Server running at http://${servers.http.host}:${servers.http.port}/`);
});
}
const transform = async (receiptmd, printer) => {
// convert receiptline to png
if (printer.command === 'png') {
return await rasterize(receiptmd, printer, 'binary');
}
// convert receiptline to image command
if (printer.asImage && (puppeteer || sharp)) {
receiptmd = `|{i:${await rasterize(receiptmd, printer, 'base64')}}`;
return receiptline.transform(receiptmd, printer);
}
// convert receiptline to command
if (printer.landscape && /^(escpos|epson|sii|citizen|star[sm]bcs2?)$/.test(printer.command)) {
// landscape orientation
printer.command = Object.assign({}, receiptline.commands[printer.command], ...landscape[printer.command]);
}
return receiptline.transform(receiptmd, printer);
};
const rasterize = async (receiptmd, printer, encoding) => {
// convert receiptline to png
const c = receiptline.commands.svg.charWidth;
if (puppeteer) {
const display = Object.assign({}, printer, { command: 'svg' });
const svg = receiptline.transform(receiptmd, display);
const w = Number(svg.match(/width="(\d+)px"/)[1]);
const h = Number(svg.match(/height="(\d+)px"/)[1]);
const v = { width: w, height: h };
let t = '';
if (printer.landscape) {
const m = printer.margin * c || 0;
const n = printer.marginRight * c || 0;
v.width = h;
v.height = m + w + n;
t = `svg{padding-left:${m}px;padding-right:${n}px;transform-origin:top left;transform:rotate(-90deg) translateX(-${v.height}px)}`;
Object.assign(printer, { cpl: Math.ceil(h / 12), margin: 0, marginRight: 0 });
}
const browser = await puppeteer.launch({ defaultViewport: v, headless: 'new' });
const page = await browser.newPage();
await page.setContent(`<!DOCTYPE html><html><head><meta charset="utf-8"><style>*{margin:0;background:transparent}${t}</style></head><body>${svg}</body></html>`);
const png = await page.screenshot({ encoding: encoding, omitBackground: true });
await browser.close();
return png;
}
else if (sharp) {
const display = Object.assign({}, printer, { command: svgsharp });
const svg = receiptline.transform(receiptmd, display);
const h = Number(svg.match(/height="(\d+)px"/)[1]);
const x = { background: 'transparent' };
let r = 0;
if (printer.landscape) {
x.bottom = printer.margin * c || 0;
x.top = printer.marginRight * c || 0;
r = -90;
Object.assign(printer, { cpl: Math.ceil(h / 12), margin: 0, marginRight: 0 });
}
return (await sharp(Buffer.from(svg)).rotate(r).extend(x).toFormat('png').toBuffer()).toString(encoding);
}
else {
return '';
}
};
const svgsharp = Object.assign({}, receiptline.commands.svg, {
// print text:
text: function (text, encoding) {
let p = this.textPosition;
const attr = Object.keys(this.textAttributes).reduce((a, key) => a + ` ${key}="${this.textAttributes[key]}"`, '');
this.textElement += this.arrayFrom(text, encoding).reduce((a, c) => {
const w = this.measureText(c, encoding);
const q = w * this.textScale;
const r = (p + q / 2) * this.charWidth / this.textScale;
p += q;
const s = w * this.charWidth / 2;
const t = attr.replace('scale(1,2)', `translate(${s}),scale(1,2)`).replace('scale(2,1)', `translate(${-s}),scale(2,1)`);
return a + `<text x="${r}"${t}>${c.replace(/[ &<>]/g, r => ({' ': ' ', '&': '&', '<': '<', '>': '>'}[r]))}</text>`;
}, '');
this.textPosition += this.measureText(text, encoding) * this.textScale;
return '';
},
// feed new line:
lf: function () {
const h = this.lineHeight * this.charWidth * 2;
if (this.textElement.length > 0) {
this.svgContent += `<g transform="translate(${this.lineMargin * this.charWidth},${this.svgHeight + h * 5 / 6})">${this.textElement}</g>`;
}
this.svgHeight += Math.max(h, this.feedMinimum);
this.lineHeight = 1;
this.textElement = '';
this.textPosition = 0;
return '';
}
});
// shortcut
const $ = String.fromCharCode;
//
// ESC/POS Thermal Landscape
//
const _escpos90 = {
position: 0,
content: '',
height: 1,
feed: 24,
cpl: 48,
buffer: '',
// start printing: ESC @ GS a n ESC M n FS ( A pL pH fn m ESC SP n FS S n1 n2 FS . GS P x y ESC L ESC T n
open: function (printer) {
this.upsideDown = printer.upsideDown;
this.spacing = printer.spacing;
this.cutting = printer.cutting;
this.gradient = printer.gradient;
this.gamma = printer.gamma;
this.threshold = printer.threshold;
this.alignment = 0;
this.left = 0;
this.width = printer.cpl;
this.right = 0;
this.position = 0;
this.content = '';
this.height = 1;
this.feed = this.charWidth * (printer.spacing ? 2.5 : 2);
this.cpl = printer.cpl;
this.margin = printer.margin;
this.marginRight = printer.marginRight;
this.buffer = '';
const r = printer.resolution;
return '\x1b@\x1da\x00\x1bM' + (printer.encoding === 'tis620' ? 'a' : '0') + '\x1c(A' + $(2, 0, 48, 0) + '\x1b \x00\x1cS\x00\x00\x1c.\x1dP' + $(r, r) + '\x1bL\x1bT' + $(printer.upsideDown ? 3 : 1);
},
// finish printing: ESC W xL xH yL yH dxL dxH dyL dyH FF GS r n
close: function () {
const w = this.position;
const h = this.cpl * this.charWidth;
const v = (this.margin + this.cpl + this.marginRight) * this.charWidth;
const m = (this.upsideDown ? this.margin : this.marginRight) * this.charWidth;
return '\x1bW' + $(0, 0, 0, 0, w & 255, w >> 8 & 255, v & 255, v >> 8 & 255) + ' \x1bW' + $(0, 0, m & 255, m >> 8 & 255, w & 255, w >> 8 & 255, h & 255, h >> 8 & 255) + this.buffer + '\x0c' + (this.cutting ? this.cut() : '') + '\x1dr1';
},
// set print area:
area: function (left, width, right) {
this.left = left;
this.width = width;
this.right = right;
return '';
},
// set line alignment:
align: function (align) {
this.alignment = align;
return '';
},
// set absolute print position: ESC $ nL nH
absolute: function (position) {
const p = (this.left + position) * this.charWidth;
this.content += '\x1b$' + $(p & 255, p >> 8 & 255);
return '';
},
// set relative print position: ESC \ nL nH
relative: function (position) {
const p = position * this.charWidth;
this.content += '\x1b\\' + $(p & 255, p >> 8 & 255);
return '';
},
// print horizontal rule: FS C n FS . ESC t n ...
hr: function (width) {
this.content += '\x1cC0\x1c.\x1bt\x01' + '\x95'.repeat(width);
return '';
},
// print vertical rules: GS ! n FS C n FS . ESC t n ...
vr: function (widths, height) {
this.content += widths.reduce((a, w) => {
const p = w * this.charWidth;
return a + '\x1b\\' + $(p & 255, p >> 8 & 255) + '\x96';
}, '\x1d!' + $(height - 1) + '\x1cC0\x1c.\x1bt\x01\x96');
return '';
},
// start rules: FS C n FS . ESC t n ...
vrstart: function (widths) {
this.content += '\x1cC0\x1c.\x1bt\x01' + widths.reduce((a, w) => a + '\x95'.repeat(w) + '\x91', '\x9c').slice(0, -1) + '\x9d';
return '';
},
// stop rules: FS C n FS . ESC t n ...
vrstop: function (widths) {
this.content += '\x1cC0\x1c.\x1bt\x01' + widths.reduce((a, w) => a + '\x95'.repeat(w) + '\x90', '\x9e').slice(0, -1) + '\x9f';
return '';
},
// print vertical and horizontal rules: FS C n FS . ESC t n ...
vrhr: function (widths1, widths2, dl, dr) {
const r1 = ' '.repeat(Math.max(-dl, 0)) + widths1.reduce((a, w) => a + '\x95'.repeat(w) + '\x90', dl > 0 ? '\x9e' : '\x9a').slice(0, -1) + (dr < 0 ? '\x9f' : '\x9b') + ' '.repeat(Math.max(dr, 0));
const r2 = ' '.repeat(Math.max(dl, 0)) + widths2.reduce((a, w) => a + '\x95'.repeat(w) + '\x91', dl < 0 ? '\x9c' : '\x98').slice(0, -1) + (dr > 0 ? '\x9d' : '\x99') + ' '.repeat(Math.max(-dr, 0));
this.content += '\x1cC0\x1c.\x1bt\x01' + r2.split('').reduce((a, c, i) => a + this.vrtable[c][r1[i]], '');
return '';
},
// set line spacing and feed new line:
vrlf: function (vr) {
this.feed = this.charWidth * (!vr && this.spacing ? 2.5 : 2);
return this.lf();
},
// underline text: ESC - n FS - n
ul: function () {
this.content += '\x1b-2\x1c-2';
return '';
},
// emphasize text: ESC E n
em: function () {
this.content += '\x1bE1';
return '';
},
// invert text: GS B n
iv: function () {
this.content += '\x1dB1';
return '';
},
// scale up text: GS ! n
wh: function (wh) {
this.height = Math.max(this.height, wh < 3 ? wh : wh - 1);
this.content += '\x1d!' + (wh < 3 ? $((wh & 1) << 4 | wh >> 1 & 1) : $(wh - 2 << 4 | wh - 2));
return '';
},
// cancel text decoration: ESC - n FS - n ESC E n GS B n GS ! n
normal: function () {
this.content += '\x1b-0\x1c-0\x1bE0\x1dB0\x1d!\x00';
return '';
},
// print text:
text: function (text, encoding) {
switch (encoding) {
case 'multilingual':
this.content += this.multiconv(text);
break;
case 'tis620':
this.content += this.codepage[encoding] + this.arrayFrom(text, encoding).reduce((a, c) => a + '\x00' + iconv.encode(c, encoding).toString('binary'), '');
break;
default:
this.content += this.codepage[encoding] + iconv.encode(text, encoding).toString('binary');
break;
}
return '';
},
// feed new line: GS $ nL nH ESC $ nL nH
lf: function () {
const h = this.height * this.charWidth * 2;
const x = this.left * this.charWidth;
const y = this.position + h * 21 / 24 - 1;
this.buffer += '\x1d$' + $(y & 255, y >> 8 & 255) + '\x1b$' + $(x & 255, x >> 8 & 255) + this.content;
this.position += Math.max(h, this.feed);
this.height = 1;
this.content = '';
return '';
},
// print image: GS $ nL nH ESC $ nL nH GS 8 L p1 p2 p3 p4 m fn a bx by c xL xH yL yH d1 ... dk
image: function (image) {
const align = arguments[1] || this.alignment;
const left = arguments[2] || this.left;
const width = arguments[3] || this.width;
const img = PNG.sync.read(Buffer.from(image, 'base64'));
const w = img.width;
const x = left * this.charWidth + align * (width * this.charWidth - w) / 2;
const y = this.position;
let r = '';
const d = Array(w).fill(0);
let j = 0;
for (let z = 0; z < img.height; z += this.split) {
const h = Math.min(this.split, img.height - z);
const l = (w + 7 >> 3) * h + 10;
r += '\x1d$' + $(y + h - 1 & 255, y + h - 1 >> 8 & 255) + '\x1b$' + $(x & 255, x >> 8 & 255) + '\x1d8L' + $(l & 255, l >> 8 & 255, l >> 16 & 255, l >> 24 & 255, 48, 112, 48, 1, 1, 49, w & 255, w >> 8 & 255, h & 255, h >> 8 & 255);
for (let y = 0; y < h; y++) {
let i = 0, e = 0;
for (let x = 0; x < w; x += 8) {
let b = 0;
const q = Math.min(w - x, 8);
for (let p = 0; p < q; p++) {
const f = Math.floor((d[i] + e * 5) / 16 + Math.pow(((img.data[j] * .299 + img.data[j + 1] * .587 + img.data[j + 2] * .114 - 255) * img.data[j + 3] + 65525) / 65525, 1 / this.gamma) * 255);
j += 4;
if (this.gradient) {
d[i] = e * 3;
e = f < this.threshold ? (b |= 128 >> p, f) : f - 255;
if (i > 0) {
d[i - 1] += e;
}
d[i++] += e * 7;
}
else {
if (f < this.threshold) {
b |= 128 >> p;
}
}
}
r += $(b);
}
}
}
this.buffer += r;
this.position += img.height;
return '';
},
// print QR Code: GS $ nL nH ESC $ nL nH GS 8 L p1 p2 p3 p4 m fn a bx by c xL xH yL yH d1 ... dk
qrcode: function (symbol, encoding) {
if (typeof qrcode !== 'undefined' && symbol.data.length > 0) {
const qr = qrcode(0, symbol.level.toUpperCase());
qr.addData(symbol.data);
qr.make();
const img = qr.createASCII(2, 0).split('\n');
const w = img.length * symbol.cell;
const h = w;
const x = this.left * this.charWidth + this.alignment * (this.width * this.charWidth - w) / 2;
const y = this.position;
let r = '\x1d$' + $(y + h - 1 & 255, y + h - 1 >> 8 & 255) + '\x1b$' + $(x & 255, x >> 8 & 255);
const l = (w + 7 >> 3) * h + 10;
r += '\x1d8L' + $(l & 255, l >> 8 & 255, l >> 16 & 255, l >> 24 & 255, 48, 112, 48, 1, 1, 49, w & 255, w >> 8 & 255, h & 255, h >> 8 & 255);
for (let i = 0; i < img.length; i++) {
let d = '';
for (let j = 0; j < w; j += 8) {
let b = 0;
const q = Math.min(w - j, 8);
for (let p = 0; p < q; p++) {
if (img[i][Math.floor((j + p) / symbol.cell) * 2] === ' ') {
b |= 128 >> p;
}
}
d += $(b);
}
for (let k = 0; k < symbol.cell; k++) {
r += d;
}
}
this.buffer += r;
this.position += h;
}
return '';
},
// print barcode: GS $ nL nH ESC $ nL nH GS w n GS h n GS H n GS k m n d1 ... dn
barcode: function (symbol, encoding) {
const bar = receiptline.barcode.generate(symbol);
if ('length' in bar) {
const w = bar.length;
const l = symbol.height;
const h = l + (symbol.hri ? this.charWidth * 2 + 2 : 0);
const x = this.left * this.charWidth + this.alignment * (this.width * this.charWidth - w) / 2;
const y = this.position;
let r = '\x1d$' + $(y + l - 1 & 255, y + l - 1 >> 8 & 255) + '\x1b$' + $(x & 255, x >> 8 & 255);
let d = iconv.encode(symbol.data, encoding === 'multilingual' ? 'ascii' : encoding).toString('binary');
const b = this.bartype[symbol.type] + Number(/upc|[ej]an/.test(symbol.type) && symbol.data.length < 9);
switch (b) {
case this.bartype.ean:
d = d.slice(0, 12);
break;
case this.bartype.upc:
d = d.slice(0, 11);
break;
case this.bartype.ean + 1:
d = d.slice(0, 7);
break;
case this.bartype.upc + 1:
d = this.upce(d);
break;
case this.bartype.code128:
d = this.code128(d);
break;
default:
break;
}
d = d.slice(0, 255);
r += '\x1dw' + $(symbol.width) + '\x1dh' + $(symbol.height) + '\x1dH' + $(symbol.hri ? 2 : 0) + '\x1dk' + $(b, d.length) + d;
this.buffer += r;
this.position += h;
}
return '';
}
};
//
// SII Landscape
//
const _sii90 = {
// start printing: ESC @ GS a n ESC M n ESC SP n FS S n1 n2 FS . GS P x y ESC L ESC T n
open: function (printer) {
this.upsideDown = printer.upsideDown;
this.spacing = printer.spacing;
this.cutting = printer.cutting;
this.gradient = printer.gradient;
this.gamma = printer.gamma;
this.threshold = printer.threshold;
this.alignment = 0;
this.left = 0;
this.width = printer.cpl;
this.right = 0;
this.position = 0;
this.content = '';
this.height = 1;
this.feed = this.charWidth * (printer.spacing ? 2.5 : 2);
this.cpl = printer.cpl;
this.margin = printer.margin;
this.marginRight = printer.marginRight;
this.buffer = '';
const r = printer.resolution;
return '\x1b@\x1da\x00\x1bM0\x1b \x00\x1cS\x00\x00\x1c.\x1dP' + $(r, r) + '\x1bL\x1bT' + $(printer.upsideDown ? 3 : 1);
},
// finish printing: ESC W xL xH yL yH dxL dxH dyL dyH ESC $ nL nH FF DC2 q n
close: function () {
const w = this.position;
const h = this.cpl * this.charWidth;
const v = (this.margin + this.cpl + this.marginRight) * this.charWidth;
const m = (this.upsideDown ? this.margin : this.marginRight) * this.charWidth;
return '\x1bW' + $(0, 0, 0, 0, w & 255, w >> 8 & 255, v & 255, v >> 8 & 255) + ' \x1bW' + $(0, 0, m & 255, m >> 8 & 255, w & 255, w >> 8 & 255, h & 255, h >> 8 & 255) + this.buffer + '\x0c' + (this.cutting ? this.cut() : '') + '\x12q\x00';
},
// feed new line: GS $ nL nH ESC $ nL nH
lf: function () {
const h = this.height * this.charWidth * 2;
const x = this.left * this.charWidth;
const y = this.position + h;
this.buffer += '\x1d$' + $(y & 255, y >> 8 & 255) + '\x1b$' + $(x & 255, x >> 8 & 255) + this.content;
this.position += Math.max(h, this.feed);
this.height = 1;
this.content = '';
return '';
},
// print image: GS $ nL nH ESC $ nL nH GS 8 L p1 p2 p3 p4 m fn a bx by c xL xH yL yH d1 ... dk
image: function (image) {
const align = arguments[1] || this.alignment;
const left = arguments[2] || this.left;
const width = arguments[3] || this.width;
const img = PNG.sync.read(Buffer.from(image, 'base64'));
const w = img.width;
const x = left * this.charWidth + align * (width * this.charWidth - w) / 2;
const y = this.position;
let r = '';
const d = Array(w).fill(0);
let j = 0;
for (let z = 0; z < img.height; z += this.split) {
const h = Math.min(this.split, img.height - z);
const l = (w + 7 >> 3) * h + 10;
r += '\x1d$' + $(y + h & 255, y + h >> 8 & 255) + '\x1b$' + $(x & 255, x >> 8 & 255) + '\x1d8L' + $(l & 255, l >> 8 & 255, l >> 16 & 255, l >> 24 & 255, 48, 112, 48, 1, 1, 49, w & 255, w >> 8 & 255, h & 255, h >> 8 & 255);
for (let y = 0; y < h; y++) {
let i = 0, e = 0;
for (let x = 0; x < w; x += 8) {
let b = 0;
const q = Math.min(w - x, 8);
for (let p = 0; p < q; p++) {
const f = Math.floor((d[i] + e * 5) / 16 + Math.pow(((img.data[j] * .299 + img.data[j + 1] * .587 + img.data[j + 2] * .114 - 255) * img.data[j + 3] + 65525) / 65525, 1 / this.gamma) * 255);
j += 4;
if (this.gradient) {
d[i] = e * 3;
e = f < this.threshold ? (b |= 128 >> p, f) : f - 255;
if (i > 0) {
d[i - 1] += e;
}
d[i++] += e * 7;
}
else {
if (f < this.threshold) {
b |= 128 >> p;
}
}
}
r += $(b);
}
}
}
this.buffer += r;
this.position += img.height;
return '';
},
// print QR Code: GS $ nL nH ESC $ nL nH GS 8 L p1 p2 p3 p4 m fn a bx by c xL xH yL yH d1 ... dk
qrcode: function (symbol, encoding) {
if (typeof qrcode !== 'undefined' && symbol.data.length > 0) {
const qr = qrcode(0, symbol.level.toUpperCase());
qr.addData(symbol.data);
qr.make();
const img = qr.createASCII(2, 0).split('\n');
const w = img.length * symbol.cell;
const h = w;
const x = this.left * this.charWidth + this.alignment * (this.width * this.charWidth - w) / 2;
const y = this.position;
let r = '\x1d$' + $(y + h & 255, y + h >> 8 & 255) + '\x1b$' + $(x & 255, x >> 8 & 255);
const l = (w + 7 >> 3) * h + 10;
r += '\x1d8L' + $(l & 255, l >> 8 & 255, l >> 16 & 255, l >> 24 & 255, 48, 112, 48, 1, 1, 49, w & 255, w >> 8 & 255, h & 255, h >> 8 & 255);
for (let i = 0; i < img.length; i++) {
let d = '';
for (let j = 0; j < w; j += 8) {
let b = 0;
const q = Math.min(w - j, 8);
for (let p = 0; p < q; p++) {
if (img[i][Math.floor((j + p) / symbol.cell) * 2] === ' ') {
b |= 128 >> p;
}
}
d += $(b);
}
for (let k = 0; k < symbol.cell; k++) {
r += d;
}
}
this.buffer += r;
this.position += h;
}
return '';
},
// print barcode: GS $ nL nH ESC $ nL nH GS w n GS h n GS H n GS k m n d1 ... dn
barcode: function (symbol, encoding) {
const bar = receiptline.barcode.generate(symbol);
if ('length' in bar) {
const w = bar.length + symbol.width * (/^(upc|ean|jan)$/.test(symbol.type) ? (data.length < 9 ? 14 : 18) : 20);
const l = symbol.height;
const h = l + (symbol.hri ? this.charWidth * 2 + 4 : 0);
const x = this.left * this.charWidth + this.alignment * (this.width * this.charWidth - w) / 2;
const y = this.position;
let r = '\x1d$' + $(y + l & 255, y + l >> 8 & 255) + '\x1b$' + $(x & 255, x >> 8 & 255);
let d = iconv.encode(symbol.data, encoding === 'multilingual' ? 'ascii' : encoding).toString('binary');
const b = this.bartype[symbol.type] + Number(/upc|[ej]an/.test(symbol.type) && symbol.data.length < 9);
switch (b) {
case this.bartype.upc + 1:
d = this.upce(d);
break;
case this.bartype.codabar:
d = this.codabar(d);
break;
case this.bartype.code93:
d = this.code93(d);
break;
case this.bartype.code128:
d = this.code128(d);
break;
default:
break;
}
d = d.slice(0, 255);
r += '\x1dw' + $(symbol.width) + '\x1dh' + $(symbol.height) + '\x1dH' + $(symbol.hri ? 2 : 0) + '\x1dk' + $(b, d.length) + d;
this.buffer += r;
this.position += h;
}
return '';
}
};
//
// Citizen Landscape
//
const _citizen90 = {
// print barcode: GS $ nL nH ESC $ nL nH GS w n GS h n GS H n GS k m n d1 ... dn
barcode: function (symbol, encoding) {
const bar = receiptline.barcode.generate(symbol);
if ('length' in bar) {
const w = bar.length;
const l = symbol.height;
const h = l + (symbol.hri ? this.charWidth * 2 + 2 : 0);
const x = this.left * this.charWidth + this.alignment * (this.width * this.charWidth - w) / 2;
const y = this.position;
let r = '\x1d$' + $(y + l - 1 & 255, y + l - 1 >> 8 & 255) + '\x1b$' + $(x & 255, x >> 8 & 255);
let d = iconv.encode(symbol.data, encoding === 'multilingual' ? 'ascii' : encoding).toString('binary');
const b = this.bartype[symbol.type] + Number(/upc|[ej]an/.test(symbol.type) && symbol.data.length < 9);
switch (b) {
case this.bartype.ean:
d = d.slice(0, 12);
break;
case this.bartype.upc:
d = d.slice(0, 11);
break;
case this.bartype.ean + 1:
d = d.slice(0, 7);
break;
case this.bartype.upc + 1:
d = this.upce(d);
break;
case this.bartype.codabar:
d = this.codabar(d);
break;
case this.bartype.code128:
d = this.code128(d);
break;
default:
break;
}
d = d.slice(0, 255);
r += '\x1dw' + $(symbol.width) + '\x1dh' + $(symbol.height) + '\x1dH' + $(symbol.hri ? 2 : 0) + '\x1dk' + $(b, d.length) + d;
this.buffer += r;
this.position += h;
}
return '';
}
};
//
// Star Landscape
//
const _star90 = {
alignment: 0,
width: 48,
left: 0,
position: 0,
content: '',
height: 1,
feed: 24,
cpl: 48,
marginRight: 0,
buffer: '',
// start printing: ESC @ ESC RS a n (ESC RS R n) ESC RS F n ESC SP n ESC s n1 n2 ESC GS P 0 ESC GS P 2 n
open: function (printer) {
this.upsideDown = printer.upsideDown;
this.spacing = printer.spacing;
this.cutting = printer.cutting;
this.gradient = printer.gradient;
this.gamma = printer.gamma;
this.threshold = printer.threshold;
this.alignment = 0;
this.left = 0;
this.width = printer.cpl;
this.position = 0;
this.content = '';
this.height = 1;
this.feed = this.charWidth * (printer.spacing ? 2.5 : 2);
this.cpl = printer.cpl;
this.margin = printer.margin;
this.marginRight = printer.marginRight;
this.buffer = '';
return '\x1b@\x1b\x1ea\x00' + (printer.encoding === 'tis620' ? '\x1b\x1eR\x01': '') + '\x1b\x1eF\x00\x1b 0\x1bs00\x1b\x1dP0\x1b\x1dP2' + $(printer.upsideDown ? 3 : 1);
},
// finish printing: ESC GS P 3 xL xH yL yH dxL dxH dyL dyH ESC GS P 7 ESC GS ETX s n1 n2
close: function () {
const w = this.position;
const h = this.cpl * this.charWidth;
const v = (this.margin + this.cpl + this.marginRight) * this.charWidth;
const m = (this.upsideDown ? this.margin : this.marginRight) * this.charWidth;
return '\x1b\x1dP3' + $(0, 0, 0, 0, w & 255, w >> 8 & 255, v & 255, v >> 8 & 255) + ' \x1b\x1dP3' + $(0, 0, m & 255, m >> 8 & 255, w & 255, w >> 8 & 255, h & 255, h >> 8 & 255) + this.buffer + '\x1b\x1dP7' + (this.cutting ? this.cut() : '') + '\x1b\x1d\x03\x01\x00\x00';
},
// set print area:
area: function (left, width, right) {
this.left = left;
this.width = width;
return '';
},
// set line alignment:
align: function (align) {
this.alignment = align;
return '';
},
// set absolute print position: ESC GS A n1 n2
absolute: function (position) {
const p = (this.left + position) * this.charWidth;
this.content += '\x1b\x1dA' + $(p & 255, p >> 8 & 255);
return '';
},
// set relative print position: ESC GS R n1 n2
relative: function (position) {
const p = position * this.charWidth;
this.content += '\x1b\x1dR' + $(p & 255, p >> 8 & 255);
return '';
},
// set line spacing and feed new line:
vrlf: function (vr) {
this.feed = this.charWidth * (!vr && this.spacing ? 2.5 : 2);
return this.lf();
},
// underline text: ESC - n
ul: function () {
this.content += '\x1b-1';
return '';
},
// emphasize text: ESC E
em: function () {
this.content += '\x1bE';
return '';
},
// invert text: ESC 4
iv: function () {
this.content += '\x1b4';
return '';
},
// scale up text: ESC i n1 n2
wh: function (wh) {
this.height = Math.max(this.height, wh < 3 ? wh : wh - 1);
this.content += '\x1bi' + (wh < 3 ? $(wh >> 1 & 1, wh & 1) : $(wh - 2, wh - 2));
return '';
},
// cancel text decoration: ESC - n ESC F ESC 5 ESC i n1 n2
normal: function () {
this.content += '\x1b-0\x1bF\x1b5\x1bi' + $(0, 0);
return '';
},
// print text:
text: function (text, encoding) {
this.content += encoding === 'multilingual' ? this.multiconv(text) : this.codepage[encoding] + iconv.encode(text, encoding).toString('binary');
return '';
},
// feed new line: ESC GS P 4 nL nH ESC GS A n1 n2
lf: function () {
const h = this.height * this.charWidth * 2;
const x = this.left * this.charWidth;
const y = this.position + h * 20 / 24;
this.buffer += '\x1b\x1dP4' + $(y & 255, y >> 8 & 255) + '\x1b\x1dA' + $(x & 255, x >> 8 & 255) + this.content;
this.position += Math.max(h, this.feed);
this.height = 1;
this.content = '';
return '';
},
// print image: ESC GS P 4 nL nH ESC GS A n1 n2 ESC k n1 n2 d1 ... dk
image: function (image) {
const align = arguments[1] || this.alignment;
const left = arguments[2] || this.left;
const width = arguments[3] || this.width;
const img = PNG.sync.read(Buffer.from(image, 'base64'));
const w = img.width;
const h = img.height;
const x = left * this.charWidth + align * (width * this.charWidth - w) / 2;
const y = this.position + this.charWidth * 40 / 24;
const d = Array(w).fill(0);
const l = w + 7 >> 3;
let r = '\x1b0' + '\x1b\x1dP4' + $(y & 255, y >> 8 & 255);
let j = 0;
for (let y = 0; y < h; y += 24) {
r += '\x1b\x1dA' + $(x & 255, x >> 8 & 255) + '\x1bk' + $(l & 255, l >> 8 & 255);
for (let z = 0; z < 24; z++) {
if (y + z < h) {
let i = 0, e = 0;
for (let x = 0; x < w; x += 8) {
let b = 0;
const q = Math.min(w - x, 8);
for (let p = 0; p < q; p++) {
const f = Math.floor((d[i] + e * 7) / 16 + Math.pow(((img.data[j] * .299 + img.data[j + 1] * .587 + img.data[j + 2] * .114 - 255) * img.data[j + 3] + 65525) / 65525, 1 / this.gamma) * 255);
j += 4;
if (this.gradient) {
d[i] = e * 3;
e = f < this.threshold ? (b |= 128 >> p, f) : f - 255;
if (i > 0) {
d[i - 1] += e;
}
d[i++] += e * 5;
}
else {
if (f < this.threshold) {
b |= 128 >> p;
}
}
}
r += $(b);
}
}
else {
r += '\x00'.repeat(l);
}
}
r += '\x0a';
}
r += (this.spacing ? '\x1bz1' : '\x1b0');
this.buffer += r;
this.position += h;
return '';
},
// print QR Code: ESC GS P 4 nL nH ESC GS A n1 n2 ESC k n1 n2 d1 ... dk
qrcode: function (symbol, encoding) {
if (typeof qrcode !== 'undefined' && symbol.data.length > 0) {
const qr = qrcode(0, symbol.level.toUpperCase());
qr.addData(symbol.data);
qr.make();
const img = qr.createASCII(2, 0).split('\n');
const w = img.length * symbol.cell;
const h = w;
const x = this.left * this.charWidth + this.alignment * (this.width * this.charWidth - w) / 2;
const y = this.position + this.charWidth * 40 / 24;
const l = w + 7 >> 3;
let r = '\x1b0' + '\x1b\x1dP4' + $(y & 255, y >> 8 & 255);
const s = [];
for (let i = 0; i < img.length; i++) {
let d = '';
for (let j = 0; j < w; j += 8) {
let b = 0;
const q = Math.min(w - j, 8);
for (let p = 0; p < q; p++) {
if (img[i][Math.floor((j + p) / symbol.cell) * 2] === ' ') {
b |= 128 >> p;
}
}
d += $(b);
}
for (let k = 0; k < symbol.cell; k++) {
s.push(d);
}
}
while (s.length % 24) {
const d = '\x00'.repeat(l);
s.push(d);
}
for (let k = 0; k < s.length; k += 24) {
r += '\x1b\x1dA' + $(x & 255, x >> 8 & 255) + '\x1bk' + $(l & 255, l >> 8 & 255) + s.slice(k, k + 24).join('') + '\x0a';
}
r += (this.spacing ? '\x1bz1' : '\x1b0');
this.buffer += r;
this.position += h;
}
return '';
},
// print barcode: ESC GS P 4 nL nH ESC GS A n1 n2 ESC b n1 n2 n3 n4 d1 ... dk RS
barcode: function (symbol, encoding) {
const bar = receiptline.barcode.generate(symbol);
if ('length' in bar) {
let w = bar.length;
switch (symbol.type) {
case 'code39':
w += symbol.width;
break;
case 'itf':
w += bar.widths.reduce((a, c) => (c === 8 ? a + 1 : a), 0);
break;
case 'code128':
w += symbol.width * 11;
break;
default:
break;
}
const x = this.left * this.charWidth + this.alignment * (this.width * this.charWidth - w) / 2;
const y = this.position + symbol.height;
const h = y + (symbol.hri ? this.charWidth * 2 + 2 : 0);
let r = '\x1b\x1dP4' + $(y & 255, y >> 8 & 255) + '\x1b\x1dA' + $(x & 255, x >> 8 & 255);