QR Code Generator (C++)

Overview

This project is a QR Code Generator written in C++17.
It allows you to encode text or URLs into QR codes with customizable error correction levels and renders them directly in the terminal using ANSI escape sequences.

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Features

• Generate QR codes from any string input.
• Supports four error correction levels:
  • Low (7% recovery)
  • Medium (15% recovery)
  • Quartile (25% recovery)
  • High (30% recovery)
• Terminal rendering using colored blocks (ANSI escape codes).
• Modular design with QR_Generator class for easy integration.

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Requirements

• C++17 or later
• CMake ≥ 3.10
• A terminal that supports ANSI escape sequences (Linux/macOS, or Windows with proper terminal emulator)

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Project Structure

QR-Generator/
│─ src/
│ ├── main.cpp
│ └── QR_Generator.cpp
│─ include/
│ ├── QR_Generator.hpp
│ └── includes.hpp
│─ screenshots/
│ └── terminal.png
│─ CMakeLists.txt
│─ README.md
│─ .gitignore
└─ LICENSE

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Build Instructions

1. Clone the repository

git clone https://github.com/7IRE/QR-Generator.git
cd QR-Generator

2. Configure with CMake

cmake -B build

3. Build

cmake --build build

4. Run

./build/qrcode_app

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QR Code Generator (C++)

Usage

When you run the program:

• You’ll be prompted to select an error correction level (0–3).
• Enter the text or URL you want to encode.
• The QR code will be rendered in your terminal.

Terminal Output

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Configuration

• Extend render() to support different rendering styles (ASCII, Unicode blocks, images).
• You can easily integrate this library into any other C++ project by copying the core files and linking them via CMake.

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