Initial implementation of GNU Barcode backend.

2017-05-29 20:43:10 -04:00
parent 52edeaff83
commit e0992db6b6
10 changed files with 517 additions and 27 deletions
@@ -0,0 +1,85 @@
+/*  GnuBarcode.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_GnuBarcode_h
+#define barcode_GnuBarcode_h
+
+#if HAVE_GNU_BARCODE
+
+#include "glbarcode/Barcode1dBase.h"
+
+
+namespace glabels
+{
+	namespace GnuBarcode
+	{
+
+		/**
+		 * GnuBarcode::Base base class for all GNU Barcodes
+		 *
+		 * Implements glbarcode::Barcode1dBase.
+		 */
+		class Base : public glbarcode::Barcode1dBase
+		{
+		protected:
+			int flags;
+			
+			bool isAscii( const std::string& data ) const;
+			
+			bool isNumericLengthValid( const std::string& data,
+			                           unsigned int       nMin,
+			                           unsigned int       nMax ) const;
+
+			bool isNumericLength1Valid( const std::string& data,
+			                            unsigned int       nMin,
+			                            unsigned int       nMax ) const;
+
+			bool isNumericLength2Valid( const std::string& data,
+			                            unsigned int       nMin,
+			                            unsigned int       nMax ) const;
+			
+			void vectorize( const std::string& encodedData,
+			                const std::string& displayText,
+			                const std::string& cookedData,
+			                double&            w,
+			                double&            h ) override;
+		};
+
+
+		/**
+		 * EAN Barcode (Any)
+		 */
+		class Ean : public Base
+		{
+		public:
+			static Barcode* create();
+			
+		protected:
+			bool validate( const std::string& rawData ) override;
+			std::string encode( const std::string& cookedData ) override;
+		};
+
+	}
+}
+
+
+#endif // HAVE_GNU_BARCODE
+
+#endif // barcode_GnuBarcode_h