698 lines
28 KiB
C#
698 lines
28 KiB
C#
using System;
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using iTextSharp.text;
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using System.Collections;
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/*
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* Copyright 2002 by Paulo Soares.
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* (the "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the License.
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*
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* The Original Code is 'iText, a free JAVA-PDF library'.
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*
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* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
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* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
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* All Rights Reserved.
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* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
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* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
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*
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* Contributor(s): all the names of the contributors are added in the source code
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* where applicable.
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*
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* Alternatively, the contents of this file may be used under the terms of the
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* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
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* provisions of LGPL are applicable instead of those above. If you wish to
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* allow use of your version of this file only under the terms of the LGPL
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* License and not to allow others to use your version of this file under
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* the MPL, indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by the LGPL.
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* If you do not delete the provisions above, a recipient may use your version
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* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the MPL as stated above or under the terms of the GNU
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* Library General Public License as published by the Free Software Foundation;
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* either version 2 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
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* details.
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*
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* If you didn't download this code from the following link, you should check if
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* you aren't using an obsolete version:
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* http://www.lowagie.com/iText/
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*/
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namespace iTextSharp.text.pdf {
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/** Generates barcodes in several formats: EAN13, EAN8, UPCA, UPCE,
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* supplemental 2 and 5. The default parameters are:
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* <pre>
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*x = 0.8f;
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*font = BaseFont.CreateFont("Helvetica", "winansi", false);
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*size = 8;
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*baseline = size;
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*barHeight = size * 3;
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*guardBars = true;
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*codeType = EAN13;
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*code = "";
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* </pre>
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*
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* @author Paulo Soares (psoares@consiste.pt)
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*/
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public class BarcodeEAN : Barcode {
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/** The bar positions that are guard bars.*/
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private static readonly int[] GUARD_EMPTY = {};
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/** The bar positions that are guard bars.*/
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private static readonly int[] GUARD_UPCA = {0, 2, 4, 6, 28, 30, 52, 54, 56, 58};
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/** The bar positions that are guard bars.*/
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private static readonly int[] GUARD_EAN13 = {0, 2, 28, 30, 56, 58};
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/** The bar positions that are guard bars.*/
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private static readonly int[] GUARD_EAN8 = {0, 2, 20, 22, 40, 42};
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/** The bar positions that are guard bars.*/
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private static readonly int[] GUARD_UPCE = {0, 2, 28, 30, 32};
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/** The x coordinates to place the text.*/
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private static readonly float[] TEXTPOS_EAN13 = {6.5f, 13.5f, 20.5f, 27.5f, 34.5f, 41.5f, 53.5f, 60.5f, 67.5f, 74.5f, 81.5f, 88.5f};
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/** The x coordinates to place the text.*/
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private static readonly float[] TEXTPOS_EAN8 = {6.5f, 13.5f, 20.5f, 27.5f, 39.5f, 46.5f, 53.5f, 60.5f};
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/** The basic bar widths.*/
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private static readonly byte[][] BARS =
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{
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new byte[] {3, 2, 1, 1}, // 0
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new byte[] {2, 2, 2, 1}, // 1
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new byte[] {2, 1, 2, 2}, // 2
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new byte[] {1, 4, 1, 1}, // 3
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new byte[] {1, 1, 3, 2}, // 4
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new byte[] {1, 2, 3, 1}, // 5
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new byte[] {1, 1, 1, 4}, // 6
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new byte[] {1, 3, 1, 2}, // 7
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new byte[] {1, 2, 1, 3}, // 8
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new byte[] {3, 1, 1, 2} // 9
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};
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/** The total number of bars for EAN13.*/
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private const int TOTALBARS_EAN13 = 11 + 12 * 4;
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/** The total number of bars for EAN8.*/
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private const int TOTALBARS_EAN8 = 11 + 8 * 4;
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/** The total number of bars for UPCE.*/
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private const int TOTALBARS_UPCE = 9 + 6 * 4;
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/** The total number of bars for supplemental 2.*/
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private const int TOTALBARS_SUPP2 = 13;
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/** The total number of bars for supplemental 5.*/
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private const int TOTALBARS_SUPP5 = 31;
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/** Marker for odd parity.*/
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private const byte ODD = 0;
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/** Marker for even parity.*/
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private const byte EVEN = 1;
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/** Sequence of parities to be used with EAN13.*/
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private static readonly byte[][] PARITY13 =
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{
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new byte[] {ODD, ODD, ODD, ODD, ODD, ODD}, // 0
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new byte[] {ODD, ODD, EVEN, ODD, EVEN, EVEN}, // 1
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new byte[] {ODD, ODD, EVEN, EVEN, ODD, EVEN}, // 2
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new byte[] {ODD, ODD, EVEN, EVEN, EVEN, ODD}, // 3
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new byte[] {ODD, EVEN, ODD, ODD, EVEN, EVEN}, // 4
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new byte[] {ODD, EVEN, EVEN, ODD, ODD, EVEN}, // 5
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new byte[] {ODD, EVEN, EVEN, EVEN, ODD, ODD}, // 6
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new byte[] {ODD, EVEN, ODD, EVEN, ODD, EVEN}, // 7
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new byte[] {ODD, EVEN, ODD, EVEN, EVEN, ODD}, // 8
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new byte[] {ODD, EVEN, EVEN, ODD, EVEN, ODD} // 9
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};
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/** Sequence of parities to be used with supplemental 2.*/
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private static readonly byte[][] PARITY2 =
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{
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new byte[] {ODD, ODD}, // 0
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new byte[] {ODD, EVEN}, // 1
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new byte[] {EVEN, ODD}, // 2
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new byte[] {EVEN, EVEN} // 3
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};
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/** Sequence of parities to be used with supplemental 2.*/
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private static readonly byte[][] PARITY5 =
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{
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new byte[] {EVEN, EVEN, ODD, ODD, ODD}, // 0
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new byte[] {EVEN, ODD, EVEN, ODD, ODD}, // 1
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new byte[] {EVEN, ODD, ODD, EVEN, ODD}, // 2
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new byte[] {EVEN, ODD, ODD, ODD, EVEN}, // 3
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new byte[] {ODD, EVEN, EVEN, ODD, ODD}, // 4
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new byte[] {ODD, ODD, EVEN, EVEN, ODD}, // 5
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new byte[] {ODD, ODD, ODD, EVEN, EVEN}, // 6
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new byte[] {ODD, EVEN, ODD, EVEN, ODD}, // 7
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new byte[] {ODD, EVEN, ODD, ODD, EVEN}, // 8
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new byte[] {ODD, ODD, EVEN, ODD, EVEN} // 9
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};
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/** Sequence of parities to be used with UPCE.*/
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private static readonly byte[][] PARITYE =
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{
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new byte[] {EVEN, EVEN, EVEN, ODD, ODD, ODD}, // 0
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new byte[] {EVEN, EVEN, ODD, EVEN, ODD, ODD}, // 1
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new byte[] {EVEN, EVEN, ODD, ODD, EVEN, ODD}, // 2
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new byte[] {EVEN, EVEN, ODD, ODD, ODD, EVEN}, // 3
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new byte[] {EVEN, ODD, EVEN, EVEN, ODD, ODD}, // 4
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new byte[] {EVEN, ODD, ODD, EVEN, EVEN, ODD}, // 5
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new byte[] {EVEN, ODD, ODD, ODD, EVEN, EVEN}, // 6
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new byte[] {EVEN, ODD, EVEN, ODD, EVEN, ODD}, // 7
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new byte[] {EVEN, ODD, EVEN, ODD, ODD, EVEN}, // 8
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new byte[] {EVEN, ODD, ODD, EVEN, ODD, EVEN} // 9
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};
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/** Creates new BarcodeEAN */
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public BarcodeEAN() {
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x = 0.8f;
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font = BaseFont.CreateFont("Helvetica", "winansi", false);
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size = 8;
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baseline = size;
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barHeight = size * 3;
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guardBars = true;
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codeType = EAN13;
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code = "";
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}
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/** Calculates the EAN parity character.
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* @param code the code
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* @return the parity character
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*/
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public static int CalculateEANParity(string code) {
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int mul = 3;
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int total = 0;
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for (int k = code.Length - 1; k >= 0; --k) {
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int n = code[k] - '0';
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total += mul * n;
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mul ^= 2;
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}
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return (10 - (total % 10)) % 10;
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}
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/** Converts an UPCA code into an UPCE code. If the code can not
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* be converted a <CODE>null</CODE> is returned.
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* @param text the code to convert. It must have 12 numeric characters
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* @return the 8 converted digits or <CODE>null</CODE> if the
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* code could not be converted
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*/
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static public string ConvertUPCAtoUPCE(string text) {
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if (text.Length != 12 || !(text.StartsWith("0") || text.StartsWith("1")))
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return null;
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if (text.Substring(3, 3).Equals("000") || text.Substring(3, 3).Equals("100")
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|| text.Substring(3, 3).Equals("200")) {
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if (text.Substring(6, 2).Equals("00"))
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return text.Substring(0, 1) + text.Substring(1, 2) + text.Substring(8, 3) + text.Substring(3, 1) + text.Substring(11);
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}
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else if (text.Substring(4, 2).Equals("00")) {
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if (text.Substring(6, 3).Equals("000"))
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return text.Substring(0, 1) + text.Substring(1, 3) + text.Substring(9, 2) + "3" + text.Substring(11);
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}
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else if (text.Substring(5, 1).Equals("0")) {
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if (text.Substring(6, 4).Equals("0000"))
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return text.Substring(0, 1) + text.Substring(1, 4) + text.Substring(10, 1) + "4" + text.Substring(11);
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}
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else if (text[10] >= '5') {
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if (text.Substring(6, 4).Equals("0000"))
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return text.Substring(0, 1) + text.Substring(1, 5) + text.Substring(10, 1) + text.Substring(11);
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}
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return null;
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}
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/** Creates the bars for the barcode EAN13 and UPCA.
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* @param _code the text with 13 digits
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* @return the barcode
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*/
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public static byte[] GetBarsEAN13(string _code) {
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int[] code = new int[_code.Length];
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for (int k = 0; k < code.Length; ++k)
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code[k] = _code[k] - '0';
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byte[] bars = new byte[TOTALBARS_EAN13];
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int pb = 0;
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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byte[] sequence = PARITY13[code[0]];
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for (int k = 0; k < sequence.Length; ++k) {
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int c = code[k + 1];
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byte[] stripes = BARS[c];
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if (sequence[k] == ODD) {
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bars[pb++] = stripes[0];
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bars[pb++] = stripes[1];
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bars[pb++] = stripes[2];
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bars[pb++] = stripes[3];
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}
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else {
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bars[pb++] = stripes[3];
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bars[pb++] = stripes[2];
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bars[pb++] = stripes[1];
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bars[pb++] = stripes[0];
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}
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}
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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for (int k = 7; k < 13; ++k) {
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int c = code[k];
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byte[] stripes = BARS[c];
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bars[pb++] = stripes[0];
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bars[pb++] = stripes[1];
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bars[pb++] = stripes[2];
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bars[pb++] = stripes[3];
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}
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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return bars;
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}
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/** Creates the bars for the barcode EAN8.
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* @param _code the text with 8 digits
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* @return the barcode
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*/
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public static byte[] GetBarsEAN8(string _code) {
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int[] code = new int[_code.Length];
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for (int k = 0; k < code.Length; ++k)
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code[k] = _code[k] - '0';
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byte[] bars = new byte[TOTALBARS_EAN8];
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int pb = 0;
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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for (int k = 0; k < 4; ++k) {
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int c = code[k];
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byte[] stripes = BARS[c];
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bars[pb++] = stripes[0];
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bars[pb++] = stripes[1];
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bars[pb++] = stripes[2];
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bars[pb++] = stripes[3];
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}
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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for (int k = 4; k < 8; ++k) {
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int c = code[k];
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byte[] stripes = BARS[c];
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bars[pb++] = stripes[0];
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bars[pb++] = stripes[1];
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bars[pb++] = stripes[2];
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bars[pb++] = stripes[3];
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}
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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return bars;
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}
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/** Creates the bars for the barcode UPCE.
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* @param _code the text with 8 digits
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* @return the barcode
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*/
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public static byte[] GetBarsUPCE(string _code) {
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int[] code = new int[_code.Length];
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for (int k = 0; k < code.Length; ++k)
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code[k] = _code[k] - '0';
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byte[] bars = new byte[TOTALBARS_UPCE];
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bool flip = (code[0] != 0);
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int pb = 0;
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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byte[] sequence = PARITYE[code[code.Length - 1]];
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for (int k = 1; k < code.Length - 1; ++k) {
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int c = code[k];
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byte[] stripes = BARS[c];
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if (sequence[k - 1] == (flip ? EVEN : ODD)) {
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bars[pb++] = stripes[0];
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bars[pb++] = stripes[1];
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bars[pb++] = stripes[2];
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bars[pb++] = stripes[3];
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}
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else {
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bars[pb++] = stripes[3];
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bars[pb++] = stripes[2];
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bars[pb++] = stripes[1];
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bars[pb++] = stripes[0];
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}
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}
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 1;
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return bars;
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}
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/** Creates the bars for the barcode supplemental 2.
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* @param _code the text with 2 digits
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* @return the barcode
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*/
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public static byte[] GetBarsSupplemental2(string _code) {
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int[] code = new int[2];
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for (int k = 0; k < code.Length; ++k)
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code[k] = _code[k] - '0';
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byte[] bars = new byte[TOTALBARS_SUPP2];
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int pb = 0;
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int parity = (code[0] * 10 + code[1]) % 4;
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 2;
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byte[] sequence = PARITY2[parity];
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for (int k = 0; k < sequence.Length; ++k) {
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if (k == 1) {
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bars[pb++] = 1;
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bars[pb++] = 1;
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}
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int c = code[k];
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byte[] stripes = BARS[c];
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if (sequence[k] == ODD) {
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bars[pb++] = stripes[0];
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bars[pb++] = stripes[1];
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bars[pb++] = stripes[2];
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bars[pb++] = stripes[3];
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}
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else {
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bars[pb++] = stripes[3];
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bars[pb++] = stripes[2];
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bars[pb++] = stripes[1];
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bars[pb++] = stripes[0];
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}
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}
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return bars;
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}
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/** Creates the bars for the barcode supplemental 5.
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* @param _code the text with 5 digits
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* @return the barcode
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*/
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public static byte[] GetBarsSupplemental5(string _code) {
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int[] code = new int[5];
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for (int k = 0; k < code.Length; ++k)
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code[k] = _code[k] - '0';
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byte[] bars = new byte[TOTALBARS_SUPP5];
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int pb = 0;
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int parity = (((code[0] + code[2] + code[4]) * 3) + ((code[1] + code[3]) * 9)) % 10;
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bars[pb++] = 1;
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bars[pb++] = 1;
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bars[pb++] = 2;
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byte[] sequence = PARITY5[parity];
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for (int k = 0; k < sequence.Length; ++k) {
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if (k != 0) {
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bars[pb++] = 1;
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bars[pb++] = 1;
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}
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int c = code[k];
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byte[] stripes = BARS[c];
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if (sequence[k] == ODD) {
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bars[pb++] = stripes[0];
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bars[pb++] = stripes[1];
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bars[pb++] = stripes[2];
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bars[pb++] = stripes[3];
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}
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else {
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bars[pb++] = stripes[3];
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bars[pb++] = stripes[2];
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bars[pb++] = stripes[1];
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bars[pb++] = stripes[0];
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}
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}
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return bars;
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}
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/** Gets the maximum area that the barcode and the text, if
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* any, will occupy. The lower left corner is always (0, 0).
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* @return the size the barcode occupies.
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*/
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public override Rectangle BarcodeSize {
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get {
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float width = 0;
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float height = barHeight;
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if (font != null) {
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if (baseline <= 0)
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height += -baseline + size;
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else
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height += baseline - font.GetFontDescriptor(BaseFont.DESCENT, size);
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}
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switch (codeType) {
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case BarcodeEAN.EAN13:
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width = x * (11 + 12 * 7);
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if (font != null) {
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width += font.GetWidthPoint(code[0], size);
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}
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break;
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case EAN8:
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width = x * (11 + 8 * 7);
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break;
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case UPCA:
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|
width = x * (11 + 12 * 7);
|
|
if (font != null) {
|
|
width += font.GetWidthPoint(code[0], size) + font.GetWidthPoint(code[11], size);
|
|
}
|
|
break;
|
|
case UPCE:
|
|
width = x * (9 + 6 * 7);
|
|
if (font != null) {
|
|
width += font.GetWidthPoint(code[0], size) + font.GetWidthPoint(code[7], size);
|
|
}
|
|
break;
|
|
case SUPP2:
|
|
width = x * (6 + 2 * 7);
|
|
break;
|
|
case SUPP5:
|
|
width = x * (4 + 5 * 7 + 4 * 2);
|
|
break;
|
|
default:
|
|
throw new ArgumentException("Invalid code type.");
|
|
}
|
|
return new Rectangle(width, height);
|
|
}
|
|
}
|
|
|
|
/** Places the barcode in a <CODE>PdfContentByte</CODE>. The
|
|
* barcode is always placed at coodinates (0, 0). Use the
|
|
* translation matrix to move it elsewhere.<p>
|
|
* The bars and text are written in the following colors:<p>
|
|
* <P><TABLE BORDER=1>
|
|
* <TR>
|
|
* <TH><P><CODE>barColor</CODE></TH>
|
|
* <TH><P><CODE>textColor</CODE></TH>
|
|
* <TH><P>Result</TH>
|
|
* </TR>
|
|
* <TR>
|
|
* <TD><P><CODE>null</CODE></TD>
|
|
* <TD><P><CODE>null</CODE></TD>
|
|
* <TD><P>bars and text painted with current fill color</TD>
|
|
* </TR>
|
|
* <TR>
|
|
* <TD><P><CODE>barColor</CODE></TD>
|
|
* <TD><P><CODE>null</CODE></TD>
|
|
* <TD><P>bars and text painted with <CODE>barColor</CODE></TD>
|
|
* </TR>
|
|
* <TR>
|
|
* <TD><P><CODE>null</CODE></TD>
|
|
* <TD><P><CODE>textColor</CODE></TD>
|
|
* <TD><P>bars painted with current color<br>text painted with <CODE>textColor</CODE></TD>
|
|
* </TR>
|
|
* <TR>
|
|
* <TD><P><CODE>barColor</CODE></TD>
|
|
* <TD><P><CODE>textColor</CODE></TD>
|
|
* <TD><P>bars painted with <CODE>barColor</CODE><br>text painted with <CODE>textColor</CODE></TD>
|
|
* </TR>
|
|
* </TABLE>
|
|
* @param cb the <CODE>PdfContentByte</CODE> where the barcode will be placed
|
|
* @param barColor the color of the bars. It can be <CODE>null</CODE>
|
|
* @param textColor the color of the text. It can be <CODE>null</CODE>
|
|
* @return the dimensions the barcode occupies
|
|
*/
|
|
public override Rectangle PlaceBarcode(PdfContentByte cb, Color barColor, Color textColor) {
|
|
Rectangle rect = this.BarcodeSize;
|
|
float barStartX = 0;
|
|
float barStartY = 0;
|
|
float textStartY = 0;
|
|
if (font != null) {
|
|
if (baseline <= 0)
|
|
textStartY = barHeight - baseline;
|
|
else {
|
|
textStartY = -font.GetFontDescriptor(BaseFont.DESCENT, size);
|
|
barStartY = textStartY + baseline;
|
|
}
|
|
}
|
|
switch (codeType) {
|
|
case EAN13:
|
|
case UPCA:
|
|
case UPCE:
|
|
if (font != null)
|
|
barStartX += font.GetWidthPoint(code[0], size);
|
|
break;
|
|
}
|
|
byte[] bars = null;
|
|
int[] guard = GUARD_EMPTY;
|
|
switch (codeType) {
|
|
case EAN13:
|
|
bars = GetBarsEAN13(code);
|
|
guard = GUARD_EAN13;
|
|
break;
|
|
case EAN8:
|
|
bars = GetBarsEAN8(code);
|
|
guard = GUARD_EAN8;
|
|
break;
|
|
case UPCA:
|
|
bars = GetBarsEAN13("0" + code);
|
|
guard = GUARD_UPCA;
|
|
break;
|
|
case UPCE:
|
|
bars = GetBarsUPCE(code);
|
|
guard = GUARD_UPCE;
|
|
break;
|
|
case SUPP2:
|
|
bars = GetBarsSupplemental2(code);
|
|
break;
|
|
case SUPP5:
|
|
bars = GetBarsSupplemental5(code);
|
|
break;
|
|
}
|
|
float keepBarX = barStartX;
|
|
bool print = true;
|
|
float gd = 0;
|
|
if (font != null && baseline > 0 && guardBars) {
|
|
gd = baseline / 2;
|
|
}
|
|
if (barColor != null)
|
|
cb.SetColorFill(barColor);
|
|
for (int k = 0; k < bars.Length; ++k) {
|
|
float w = bars[k] * x;
|
|
if (print) {
|
|
if (Array.BinarySearch(guard, k) >= 0)
|
|
cb.Rectangle(barStartX, barStartY - gd, w - inkSpreading, barHeight + gd);
|
|
else
|
|
cb.Rectangle(barStartX, barStartY, w - inkSpreading, barHeight);
|
|
}
|
|
print = !print;
|
|
barStartX += w;
|
|
}
|
|
cb.Fill();
|
|
if (font != null) {
|
|
if (textColor != null)
|
|
cb.SetColorFill(textColor);
|
|
cb.BeginText();
|
|
cb.SetFontAndSize(font, size);
|
|
switch (codeType) {
|
|
case EAN13:
|
|
cb.SetTextMatrix(0, textStartY);
|
|
cb.ShowText(code.Substring(0, 1));
|
|
for (int k = 1; k < 13; ++k) {
|
|
string c = code.Substring(k, 1);
|
|
float len = font.GetWidthPoint(c, size);
|
|
float pX = keepBarX + TEXTPOS_EAN13[k - 1] * x - len / 2;
|
|
cb.SetTextMatrix(pX, textStartY);
|
|
cb.ShowText(c);
|
|
}
|
|
break;
|
|
case EAN8:
|
|
for (int k = 0; k < 8; ++k) {
|
|
string c = code.Substring(k, 1);
|
|
float len = font.GetWidthPoint(c, size);
|
|
float pX = TEXTPOS_EAN8[k] * x - len / 2;
|
|
cb.SetTextMatrix(pX, textStartY);
|
|
cb.ShowText(c);
|
|
}
|
|
break;
|
|
case UPCA:
|
|
cb.SetTextMatrix(0, textStartY);
|
|
cb.ShowText(code.Substring(0, 1));
|
|
for (int k = 1; k < 11; ++k) {
|
|
string c = code.Substring(k, 1);
|
|
float len = font.GetWidthPoint(c, size);
|
|
float pX = keepBarX + TEXTPOS_EAN13[k] * x - len / 2;
|
|
cb.SetTextMatrix(pX, textStartY);
|
|
cb.ShowText(c);
|
|
}
|
|
cb.SetTextMatrix(keepBarX + x * (11 + 12 * 7), textStartY);
|
|
cb.ShowText(code.Substring(11, 1));
|
|
break;
|
|
case UPCE:
|
|
cb.SetTextMatrix(0, textStartY);
|
|
cb.ShowText(code.Substring(0, 1));
|
|
for (int k = 1; k < 7; ++k) {
|
|
string c = code.Substring(k, 1);
|
|
float len = font.GetWidthPoint(c, size);
|
|
float pX = keepBarX + TEXTPOS_EAN13[k - 1] * x - len / 2;
|
|
cb.SetTextMatrix(pX, textStartY);
|
|
cb.ShowText(c);
|
|
}
|
|
cb.SetTextMatrix(keepBarX + x * (9 + 6 * 7), textStartY);
|
|
cb.ShowText(code.Substring(7, 1));
|
|
break;
|
|
case SUPP2:
|
|
case SUPP5:
|
|
for (int k = 0; k < code.Length; ++k) {
|
|
string c = code.Substring(k, 1);
|
|
float len = font.GetWidthPoint(c, size);
|
|
float pX = (7.5f + (9 * k)) * x - len / 2;
|
|
cb.SetTextMatrix(pX, textStartY);
|
|
cb.ShowText(c);
|
|
}
|
|
break;
|
|
}
|
|
cb.EndText();
|
|
}
|
|
return rect;
|
|
}
|
|
|
|
public override System.Drawing.Image CreateDrawingImage(System.Drawing.Color foreground, System.Drawing.Color background) {
|
|
int width = 0;
|
|
byte[] bars = null;
|
|
switch (codeType) {
|
|
case EAN13:
|
|
bars = GetBarsEAN13(code);
|
|
width = 11 + 12 * 7;
|
|
break;
|
|
case EAN8:
|
|
bars = GetBarsEAN8(code);
|
|
width = 11 + 8 * 7;
|
|
break;
|
|
case UPCA:
|
|
bars = GetBarsEAN13("0" + code);
|
|
width = 11 + 12 * 7;
|
|
break;
|
|
case UPCE:
|
|
bars = GetBarsUPCE(code);
|
|
width = 9 + 6 * 7;
|
|
break;
|
|
case SUPP2:
|
|
bars = GetBarsSupplemental2(code);
|
|
width = 6 + 2 * 7;
|
|
break;
|
|
case SUPP5:
|
|
bars = GetBarsSupplemental5(code);
|
|
width = 4 + 5 * 7 + 4 * 2;
|
|
break;
|
|
default:
|
|
throw new InvalidOperationException("Invalid code type.");
|
|
}
|
|
int height = (int)barHeight;
|
|
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(width, height);
|
|
for (int h = 0; h < height; ++h) {
|
|
bool print = true;
|
|
int ptr = 0;
|
|
for (int k = 0; k < bars.Length; ++k) {
|
|
int w = bars[k];
|
|
System.Drawing.Color c = background;
|
|
if (print)
|
|
c = foreground;
|
|
print = !print;
|
|
for (int j = 0; j < w; ++j)
|
|
bmp.SetPixel(ptr++, h, c);
|
|
}
|
|
}
|
|
return bmp;
|
|
}
|
|
}
|
|
}
|