Incorporated glbarcode library into source tree.

2017-04-09 19:14:13 -04:00
parent 76bd5a0c6b
commit b17cea7ace
47 changed files with 6290 additions and 0 deletions
@@ -0,0 +1,185 @@
+/*  BarcodePostnet.cpp
+ *
+ *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *
+ *  This file is part of glbarcode++.
+ *
+ *  glbarcode++ is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  glbarcode++ 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 Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with glbarcode++.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "BarcodePostnet.h"
+
+#include "Constants.h"
+
+#include <cctype>
+#include <algorithm>
+
+
+using namespace glbarcode::Constants;
+
+
+namespace
+{
+	/*
+	 * Encoding symbology
+	 */
+	const std::string symbols[] = {
+		/* 0 */ "11000",
+		/* 1 */ "00011",
+		/* 2 */ "00101",
+		/* 3 */ "00110",
+		/* 4 */ "01001",
+		/* 5 */ "01010",
+		/* 6 */ "01100",
+		/* 7 */ "10001",
+		/* 8 */ "10010",
+		/* 9 */ "10100"
+	};
+
+	const std::string frameSymbol = "1";
+
+
+	/*
+	 * Constants
+	 */
+	const double POSTNET_BAR_WIDTH      = ( 0.02    * PTS_PER_INCH );
+	const double POSTNET_FULLBAR_HEIGHT = ( 0.125   * PTS_PER_INCH );
+	const double POSTNET_HALFBAR_HEIGHT = ( 0.05    * PTS_PER_INCH );
+	const double POSTNET_BAR_PITCH      = ( 0.04545 * PTS_PER_INCH );
+	const double POSTNET_HORIZ_MARGIN   = ( 0.125   * PTS_PER_INCH );
+	const double POSTNET_VERT_MARGIN    = ( 0.04    * PTS_PER_INCH );
+
+}
+
+
+namespace glbarcode
+{
+
+	/*
+	 * Static Postnet barcode creation method
+	 */
+	Barcode* BarcodePostnet::create( void )
+	{
+		return new BarcodePostnet();
+	}
+
+
+	/*
+	 * Postnet validate number of digits
+	 */
+	bool BarcodePostnet::validateDigits( int nDigits )
+	{
+		/* Accept any valid USPS POSTNET length. */
+		return (nDigits == 5) || (nDigits == 9) || (nDigits == 11);
+	}
+
+
+	/*
+	 * Postnet data validation, implements Barcode1dBase::validate()
+	 */
+	bool BarcodePostnet::validate( const std::string& rawData )
+	{
+		int nDigits = 0;
+		for ( unsigned int i = 0; i < rawData.size(); i++ )
+		{
+			if ( isdigit( rawData[i] ) )
+			{
+				nDigits++;
+			}
+			else if ( (rawData[i] != '-') && (rawData[i] != ' ') )
+			{
+				/* Only allow digits, dashes, and spaces. */
+				return false;
+			}
+		}
+
+		return validateDigits( nDigits );
+	}
+
+
+	/*
+	 * Postnet data encoding, implements Barcode1dBase::encode()
+	 */
+	std::string BarcodePostnet::encode( const std::string& cookedData )
+	{
+		std::string code;
+
+		/* Left frame bar */
+		code += frameSymbol;
+
+		/* process each digit, adding approptiate symbol */
+		int sum = 0;
+		for ( unsigned int i = 0; i < cookedData.size(); i++ )
+		{
+			if ( isdigit( cookedData[i] ) )
+			{
+				/* Only translate the digits (0-9) */
+				int d = cookedData[i] - '0';
+				code += symbols[d];
+				sum += d;
+			}
+		}
+
+		/* Create mandatory correction character */
+		code += symbols[ (10 - (sum % 10)) % 10 ];
+
+		/* Right frame bar */
+		code += frameSymbol;
+
+		return code;
+	}
+
+
+	/*
+	 * Postnet vectorization, implements Barcode1dBase::vectorize()
+	 */
+	void BarcodePostnet::vectorize( const std::string& codedData,
+					const std::string& displayText,
+					const std::string& cookedData,
+					double&            w,
+					double&            h )
+	{
+		double x = POSTNET_HORIZ_MARGIN;
+		for ( unsigned int i=0; i < codedData.size(); i++ )
+		{
+			double length, width;
+
+			double y = POSTNET_VERT_MARGIN;
+
+			switch ( codedData[i] )
+			{
+			case '0':
+				y += POSTNET_FULLBAR_HEIGHT - POSTNET_HALFBAR_HEIGHT;
+				length = POSTNET_HALFBAR_HEIGHT;
+				break;
+			case '1':
+				length = POSTNET_FULLBAR_HEIGHT;
+				break;
+			default:
+				// Not reached
+				break;
+			}
+			width = POSTNET_BAR_WIDTH;
+
+			addLine( x, y, width, length );
+
+			x += POSTNET_BAR_PITCH;
+		}
+
+		/* Overwrite requested size with actual size. */
+		w = x + POSTNET_HORIZ_MARGIN;
+		h = POSTNET_FULLBAR_HEIGHT + 2 * POSTNET_VERT_MARGIN;
+	}
+
+}