Created QrEncode barcode backend.

glabels/BarcodeBackends/CMakeLists.txt

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+#=======================================
+# Sources
+#=======================================
+set (barcode_sources
+  QrEncode.cpp
+)
+
+add_library (Barcode STATIC
+  ${barcode_sources}
+)
+
+
+#=======================================
+# Where to find stuff
+#=======================================
+include_directories (
+)
+
+link_directories (
+)
+
+
+#=======================================
+# Subdirectories
+#=======================================
+
+
+#=======================================
+# Install
+#=======================================

glabels/BarcodeBackends/QrEncode.cpp

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+/*  QrEncode.cpp
+ *
+ *  Copyright (C) 2017  Jim Evins <evins@snaught.com>
+ *
+ *  This file is part of gLabels-qt.
+ *
+ *  gLabels-qt is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  gLabels-qt is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#if HAVE_QRENCODE
+
+#include "QrEncode.h"
+
+#include "qrencode.h"
+
+
+namespace glabels
+{
+	namespace barcode
+	{
+
+		/*
+		 * Static QrCode barcode creation method
+		 */
+		glbarcode::Barcode* QrEncode::createQrCode()
+		{
+			return new QrEncode();
+		}
+
+
+		/*
+		 * QrEncode data validation, implements glbarcode::Barcode2dBase::validate()
+		 */
+		bool QrEncode::validate( const std::string& rawData )
+		{
+			if ( rawData.size() == 0 )
+			{
+				return false;
+			}
+			return true;
+		}
+
+
+		/*
+		 * QrEncode data encoding, implements glbarcode::Barcode2dBase::encode()
+		 */
+		bool QrEncode::encode( const std::string& cookedData, glbarcode::Matrix<bool>& encodedData )
+		{
+			QRcode *qrcode = QRcode_encodeString( cookedData.c_str(), 0, QR_ECLEVEL_M, QR_MODE_8, 1 );
+			if ( qrcode == NULL )
+			{
+				return false;
+			}
+
+
+			int w = qrcode->width;
+			encodedData.resize( w, w );
+		
+		
+			for ( int iy = 0; iy < w; iy++ )
+			{
+				for ( int ix = 0; ix < w; ix++ )
+				{
+					encodedData[iy][ix] = qrcode->data[ iy*w + ix ] & 0x01;
+				}
+			}
+
+
+			QRcode_free( qrcode );
+			QRcode_clearCache();
+
+			return true;
+		}
+
+	}
+}
+
+#endif // HAVE_QRENCODE

glabels/BarcodeBackends/QrEncode.h

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+/*  QrEncode.h
+ *
+ *  Copyright (C) 2017  Jim Evins <evins@snaught.com>
+ *
+ *  This file is part of gLabels-qt.
+ *
+ *  gLabels-qt is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  gLabels-qt is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef barcode_QrEncode_h
+#define barcode_QrEncode_h
+
+
+#include "glbarcode/Barcode2dBase.h"
+
+
+namespace glabels
+{
+	namespace barcode
+	{
+
+		/**
+		 * LibQREncode barcode backend
+		 *
+		 * Implements glbarcode::Barcode2dBase.
+		 */
+		class QrEncode : public glbarcode::Barcode2dBase
+		{
+		public:
+			static Barcode* createQrCode();
+
+
+		private:
+			bool validate( const std::string& rawData ) override;
+
+			bool encode( const std::string&       cookedData,
+			             glbarcode::Matrix<bool>& encodedData ) override;
+
+		};
+
+	}
+}
+
+#endif // barcode_QrEncode_h