From 96c7ddeea8e590726ef3c28faead8205bb45ac41 Mon Sep 17 00:00:00 2001
From: "moneromooo.monero" <moneromooo.monero@users.noreply.github.com>
Date: Sun, 20 Nov 2016 12:36:14 +0000
Subject: Add QR code display on the receive page

This embeds MIT licenced code from Project Nayuki:
https://www.nayuki.io/page/qr-code-generator-library
The C++ part of the code is embedded in src/QR-Code-generator.
See src/QR-Code-generator/Readme.markdown for more info.
---
 src/QR-Code-generator/BitBuffer.cpp | 63 +++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 src/QR-Code-generator/BitBuffer.cpp

(limited to 'src/QR-Code-generator/BitBuffer.cpp')

diff --git a/src/QR-Code-generator/BitBuffer.cpp b/src/QR-Code-generator/BitBuffer.cpp
new file mode 100644
index 00000000..8028a212
--- /dev/null
+++ b/src/QR-Code-generator/BitBuffer.cpp
@@ -0,0 +1,63 @@
+/* 
+ * QR Code generator library (C++)
+ * 
+ * Copyright (c) 2016 Project Nayuki
+ * https://www.nayuki.io/page/qr-code-generator-library
+ * 
+ * (MIT License)
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ * - The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ * - The Software is provided "as is", without warranty of any kind, express or
+ *   implied, including but not limited to the warranties of merchantability,
+ *   fitness for a particular purpose and noninfringement. In no event shall the
+ *   authors or copyright holders be liable for any claim, damages or other
+ *   liability, whether in an action of contract, tort or otherwise, arising from,
+ *   out of or in connection with the Software or the use or other dealings in the
+ *   Software.
+ */
+
+#include <cstddef>
+#include "BitBuffer.hpp"
+
+
+qrcodegen::BitBuffer::BitBuffer() :
+	data(),
+	bitLength(0) {}
+
+
+int qrcodegen::BitBuffer::getBitLength() const {
+	return bitLength;
+}
+
+
+std::vector<uint8_t> qrcodegen::BitBuffer::getBytes() const {
+	return data;
+}
+
+
+void qrcodegen::BitBuffer::appendBits(uint32_t val, int len) {
+	if (len < 0 || len > 32 || (len < 32 && (val >> len) != 0))
+		throw "Value out of range";
+	size_t newBitLen = bitLength + len;
+	while (data.size() * 8 < newBitLen)
+		data.push_back(0);
+	for (int i = len - 1; i >= 0; i--, bitLength++)  // Append bit by bit
+		data.at(bitLength >> 3) |= ((val >> i) & 1) << (7 - (bitLength & 7));
+}
+
+
+void qrcodegen::BitBuffer::appendData(const QrSegment &seg) {
+	size_t newBitLen = bitLength + seg.bitLength;
+	while (data.size() * 8 < newBitLen)
+		data.push_back(0);
+	for (int i = 0; i < seg.bitLength; i++, bitLength++) {  // Append bit by bit
+		int bit = (seg.data.at(i >> 3) >> (7 - (i & 7))) & 1;
+		data.at(bitLength >> 3) |= bit << (7 - (bitLength & 7));
+	}
+}
-- 
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