From 58633d8cd0e2c348ba68431fd4be7d354e28e2a4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Berk=20Demirk=C4=B1r?= <berk.demirkir@ustek-rfid.com>
Date: Thu, 5 Jun 2025 18:38:45 +0300
Subject: [PATCH] Allow QR code generation from binary data

---
 src/QrCodeGenerator.cpp | 18 ++++++++++++++++++
 src/QrCodeGenerator.h   | 16 ++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/src/QrCodeGenerator.cpp b/src/QrCodeGenerator.cpp
index b6ffb8a..66a466c 100644
--- a/src/QrCodeGenerator.cpp
+++ b/src/QrCodeGenerator.cpp
@@ -56,6 +56,24 @@ QImage QrCodeGenerator::generateQr(const QString &data, quint16 size,
   return qrCodeToImage(qrCode, borderSize, size);
 }
 
+/**
+ * @brief Generates a QR code image from a given text string.
+ * @param data The data to encode in the QR code.
+ * @param size The image size for the generated QR code.
+ * @param borderSize The size of the border around the QR code.
+ * @param errorCorrection The level of error correction to apply.
+ * @return QImage representing the generated QR code.
+ */
+QImage QrCodeGenerator::generateQr(const QByteArray &data, quint16 size,
+                                   quint16 borderSize,
+                                   qrcodegen::QrCode::Ecc errorCorrection)
+{
+    std::vector<uint8_t> c(data.constData(), data.constData() + data.size());
+    const auto qrCode
+        = qrcodegen::QrCode::encodeBinary(c, errorCorrection);
+    return qrCodeToImage(qrCode, borderSize, size);
+}
+
 /**
  * @brief Generates an SVG string representing a QR code.
  * @param data The data to encode in the QR code.
diff --git a/src/QrCodeGenerator.h b/src/QrCodeGenerator.h
index bd4d840..9d67956 100644
--- a/src/QrCodeGenerator.h
+++ b/src/QrCodeGenerator.h
@@ -58,6 +58,22 @@ public:
                     qrcodegen::QrCode::Ecc errorCorrection
                     = qrcodegen::QrCode::Ecc::MEDIUM);
 
+  /**
+   * @brief Generates a QR code from the given data and error correction level.
+   * @param data The QByteArray containing the data to encode in the QR code.
+   * @param size The desired width/height of the generated image (default: 500).
+   * @param borderSize The desired border width of the generated image (default:
+   * 1).
+   * @param errorCorrection The desired error correction level (default:
+   * qrcodegen::QrCode::Ecc::MEDIUM).
+   *
+   * @return QImage containing the generated QR code.
+   */
+  QImage generateQr(const QByteArray &data, const quint16 size = 1000,
+                    const quint16 borderSize = 1,
+                    qrcodegen::QrCode::Ecc errorCorrection
+                    = qrcodegen::QrCode::Ecc::MEDIUM);
+
   /**
    * @brief Generates a QR code from the given data and error correction level.
    * @param data The QString containing the data to encode in the QR code.