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printer-command-generator

v1.0.12

Published

A universal printer command generator for ZPL and TSPL printers

Readme

🖨️ Printer Command Generator

一个通用的打印机指令生成库,支持 ZPL 和 TSPL 两种主流打印机协议。

✨ 特性

  • 🎯 零依赖: 纯 JavaScript 实现,无外部依赖
  • 🔧 多格式支持: 支持 ES Module、CommonJS 和 UMD 格式
  • 🖨️ 双协议: 同时支持 ZPL (Zebra) 和 TSPL (TSC) 打印机
  • 📱 跨平台: 支持 Node.js 和浏览器环境
  • 🎨 丰富组件: 支持文本、二维码、图片等多种打印元素

📦 安装

NPM 安装

npm install printer-command-generator

CDN 引入

<!-- 通过 unpkg -->
<script src="https://unpkg.com/printer-command-generator/dist/printer-command-generator.min.js"></script>

<!-- 通过 jsDelivr -->
<script src="https://cdn.jsdelivr.net/npm/printer-command-generator/dist/printer-command-generator.min.js"></script>

🚀 快速开始

Node.js 环境

// ES Module
import { convertToCmd, PrinterCommandGenerator } from 'printer-command-generator';

// CommonJS
const { convertToCmd, PrinterCommandGenerator } = require('printer-command-generator');

// 定义打印模板
const template = {
  width: 100,
  height: 60,
  dpi: 203,
  widgets: [
    {
      type: 'text',
      x: 10,
      y: 10,
      content: 'Hello World',
      fontSize: 12
    },
    {
      type: 'qrcode',
      x: 10,
      y: 30,
      content: 'https://example.com',
      size: 20
    }
  ]
};

// 生成 ZPL 指令
const zplCommand = convertToCmd(template, 'ZPL');
console.log(zplCommand);

// 生成 TSPL 指令
const tsplCommand = convertToCmd(template, 'TSPL');
console.log(tsplCommand);

浏览器环境

<!DOCTYPE html>
<html>
<head>
    <title>打印机指令生成器</title>
</head>
<body>
    <script src="https://unpkg.com/printer-command-generator/dist/printer-command-generator.min.js"></script>
    <script>
        const template = {
            width: 100,
            height: 60,
            dpi: 203,
            widgets: [
                {
                    type: 'text',
                    x: 10,
                    y: 10,
                    content: 'Hello World',
                    fontSize: 12
                }
            ]
        };
        
        // 使用全局变量 PrinterCommandGenerator
        const zplCommand = PrinterCommandGenerator.convertToCmd(template, 'ZPL');
        console.log(zplCommand);
    </script>
</body>
</html>

📖 API 文档

本库提供两种使用方式:函数式调用面向对象编程

方式一:函数式调用(推荐用于简单场景)

直接使用 convertToCmd 函数将打印模板转换为打印机指令。

convertToCmd(template, printerType, options, fontPath)

参数:

  • template (Object): 打印模板对象
  • printerType (String): 打印机类型,'ZPL' 或 'TSPL'
  • options (Object): 可选配置参数
  • fontPath (String): 可选字体文件路径

返回值:

  • (String): 生成的打印机指令

示例:

import { convertToCmd } from 'printer-command-generator';

const template = {
  page: {
    width: 100,
    height: 60,
    dpiType: '203'
  },
  widgets: [
    {
      type: 'text',
      x: 10,
      y: 10,
      content: 'Hello World',
      fontSize: 12
    },
    {
      type: 'qrcode',
      x: 10,
      y: 30,
      content: 'https://example.com',
      size: 20
    }
  ]
};

// 生成 ZPL 指令
const zplCommand = await convertToCmd(template, 'ZPL');
console.log(zplCommand);

// 生成 TSPL 指令
const tsplCommand = await convertToCmd(template, 'TSPL');
console.log(tsplCommand);

// 使用自定义字体
const zplWithFont = await convertToCmd(template, 'ZPL', {}, 'E:CUSTOM.TTF');

方式二:面向对象编程(推荐用于复杂场景)

通过创建页面和组件对象,灵活构建打印内容。

基本流程

  1. 创建打印页面 (PrintPage)
  2. 创建各种组件 (TextWidget, QRCodeWidget, ImageWidget)
  3. 将组件添加到页面
  4. 生成打印指令

示例:

import { PrintPage, TextWidget, QRCodeWidget, ImageWidget } from 'printer-command-generator';

// 1. 创建打印页面
const page = new PrintPage({
  width: 100,        // 宽度 (mm)
  height: 60,        // 高度 (mm)
  dpiType: '203',    // DPI
  fontPath: 'E:CUSTOM.TTF'  // 可选:自定义字体路径
});

// 2. 创建文本组件
const titleText = new TextWidget({
  x: 10,
  y: 5,
  content: '产品标签',
  fontSize: 16,
  fontWeight: 'bold',
  fontPath: 'E:TITLE.TTF'  // 可选:组件级字体路径
});

const productName = new TextWidget({
  x: 10,
  y: 20,
  content: 'iPhone 15 Pro',
  fontSize: 12
});

// 3. 创建二维码组件
const qrCode = new QRCodeWidget({
  x: 60,
  y: 10,
  content: 'https://apple.com/iphone-15-pro',
  size: 25,
  errorCorrection: 'M'
});

// 4. 创建图片组件
const logo = new ImageWidget({
  x: 10,
  y: 40,
  width: 20,
  height: 10,
  data: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAA...'  // Base64 图片数据
});

// 5. 将组件添加到页面
page.addWidget(titleText);
page.addWidget(productName);
page.addWidget(qrCode);
page.addWidget(logo);

// 或者批量添加
// page.addWidgets([titleText, productName, qrCode, logo]);

// 6. 生成打印指令
const zplCommand = page.toZPL();
const tsplCommand = page.toTSPL();

console.log('ZPL指令:', zplCommand);
console.log('TSPL指令:', tsplCommand);

📋 模板格式

基本结构

const template = {
  width: 100,        // 标签宽度 (mm)
  height: 60,        // 标签高度 (mm)
  dpi: 203,          // 打印分辨率 (可选,默认 203)
  widgets: [         // 打印元素数组
    // 打印元素...
  ]
};

支持的打印元素

文本元素

{
  type: 'text',
  x: 10,              // X 坐标 (mm)
  y: 10,              // Y 坐标 (mm)
  content: 'Hello',   // 文本内容
  fontSize: 12,       // 字体大小 (可选)
  fontWeight: 'bold', // 字体粗细 (可选)
  rotation: 0         // 旋转角度 (可选)
}

二维码元素

{
  type: 'qrcode',
  x: 10,                    // X 坐标 (mm)
  y: 10,                    // Y 坐标 (mm)
  content: 'QR content',    // 二维码内容
  size: 20,                 // 二维码大小 (mm)
  errorCorrection: 'M'      // 纠错级别 (可选)
}

条码元素

{
  type: 'barcode',
  x: 10,                    // X 坐标 (mm)
  y: 10,                    // Y 坐标 (mm)
  content: '123456789',     // 条码内容
  width: 40,                // 条码宽度 (mm)
  height: 10,               // 条码高度 (mm)
  codeType: 'CODE128'       // 条码类型 (可选)
}

图片元素

{
  type: 'image',
  x: 10,              // X 坐标 (mm)
  y: 10,              // Y 坐标 (mm)
  width: 30,          // 图片宽度 (mm)
  height: 20,         // 图片高度 (mm)
  data: 'base64...'   // Base64 图片数据
}

🧪 本地测试

  1. 克隆项目并安装依赖:
git clone <repository-url>
cd printer-cmd-generator
npm install
  1. 构建项目:
npm run build
  1. 启动测试服务器:
npm run test
  1. 在浏览器中打开 http://localhost:8080 查看测试页面。

🔧 开发

项目结构

printer-cmd-generator/
├── src/                    # 源代码
│   ├── index.js           # 主入口文件
│   ├── PrinterCommandGenerator.js
│   ├── generators/        # 指令生成器
│   ├── widgets/          # 打印元素
│   └── utils/            # 工具函数
├── test/                  # 测试文件
│   ├── index.html        # 测试页面
│   └── templateSample.js # 测试数据
├── dist/                  # 构建输出
├── package.json
├── rollup.config.js      # 构建配置
└── README.md

构建命令

# 开发模式 (监听文件变化)
npm run dev

# 生产构建
npm run build

# 清理构建文件
npm run clean

🤝 贡献

欢迎提交 Issue 和 Pull Request!

📄 许可证

MIT License


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