iText 5 itextpdf.jar Source Code

itextpdf.jar is a component in iText 5 Java library to provide core functionalities. iText Java library allows you to generate and manage PDF documents.

The Source Code files are provided at iText GitHub site.

You can compile it to generate your JAR file, using pom.xml as the build configuration file.

The source code of itextpdf-5.5.14.jar is provided below:

✍: FYIcenter.com

com/itextpdf/text/pdf/BarcodeEAN.java

/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2020 iText Group NV
 * Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS
 *
 * This program 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 Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: sales@itextpdf.com
 */
package com.itextpdf.text.pdf;

import java.util.Arrays;
import com.itextpdf.text.error_messages.MessageLocalization;

import com.itextpdf.text.ExceptionConverter;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.BaseColor;

/** Generates barcodes in several formats: EAN13, EAN8, UPCA, UPCE,
 * supplemental 2 and 5. The default parameters are:
 * <pre>
 *x = 0.8f;
 *font = BaseFont.createFont("Helvetica", "winansi", false);
 *size = 8;
 *baseline = size;
 *barHeight = size * 3;
 *guardBars = true;
 *codeType = EAN13;
 *code = "";
 * </pre>
 *
 * @author Paulo Soares
 */
public class BarcodeEAN extends Barcode{
        
    /** The bar positions that are guard bars.*/    
	private static final int GUARD_EMPTY[] = {};
    /** The bar positions that are guard bars.*/    
	private static final int GUARD_UPCA[] = {0, 2, 4, 6, 28, 30, 52, 54, 56, 58};
    /** The bar positions that are guard bars.*/    
	private static final int GUARD_EAN13[] = {0, 2, 28, 30, 56, 58};
    /** The bar positions that are guard bars.*/    
	private static final int GUARD_EAN8[] = {0, 2, 20, 22, 40, 42};
    /** The bar positions that are guard bars.*/    
	private static final int GUARD_UPCE[] = {0, 2, 28, 30, 32};
    /** The x coordinates to place the text.*/
	private static final 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};
    /** The x coordinates to place the text.*/
	private static final float TEXTPOS_EAN8[] = {6.5f, 13.5f, 20.5f, 27.5f, 39.5f, 46.5f, 53.5f, 60.5f};
    /** The basic bar widths.*/
	private static final byte BARS[][] = 
    {
        {3, 2, 1, 1}, // 0
        {2, 2, 2, 1}, // 1
        {2, 1, 2, 2}, // 2
        {1, 4, 1, 1}, // 3
        {1, 1, 3, 2}, // 4
        {1, 2, 3, 1}, // 5
        {1, 1, 1, 4}, // 6
        {1, 3, 1, 2}, // 7
        {1, 2, 1, 3}, // 8
        {3, 1, 1, 2}  // 9
    };
    
    /** The total number of bars for EAN13.*/
	private static final int TOTALBARS_EAN13 = 11 + 12 * 4;
    /** The total number of bars for EAN8.*/
	private static final int TOTALBARS_EAN8 = 11 + 8 * 4;
    /** The total number of bars for UPCE.*/
	private static final int TOTALBARS_UPCE = 9 + 6 * 4;
    /** The total number of bars for supplemental 2.*/
	private static final int TOTALBARS_SUPP2 = 13;
    /** The total number of bars for supplemental 5.*/
	private static final int TOTALBARS_SUPP5 = 31;
    /** Marker for odd parity.*/
	private static final int ODD = 0;
    /** Marker for even parity.*/
	private static final int EVEN = 1;
    
    /** Sequence of parities to be used with EAN13.*/
    private static final byte PARITY13[][] =
    {
        {ODD, ODD,  ODD,  ODD,  ODD,  ODD},  // 0
        {ODD, ODD,  EVEN, ODD,  EVEN, EVEN}, // 1
        {ODD, ODD,  EVEN, EVEN, ODD,  EVEN}, // 2
        {ODD, ODD,  EVEN, EVEN, EVEN, ODD},  // 3
        {ODD, EVEN, ODD,  ODD,  EVEN, EVEN}, // 4
        {ODD, EVEN, EVEN, ODD,  ODD,  EVEN}, // 5
        {ODD, EVEN, EVEN, EVEN, ODD,  ODD},  // 6
        {ODD, EVEN, ODD,  EVEN, ODD,  EVEN}, // 7
        {ODD, EVEN, ODD,  EVEN, EVEN, ODD},  // 8
        {ODD, EVEN, EVEN, ODD,  EVEN, ODD}   // 9
    };
    
    /** Sequence of parities to be used with supplemental 2.*/
    private static final byte PARITY2[][] =
    {
        {ODD,  ODD},   // 0
        {ODD,  EVEN},  // 1
        {EVEN, ODD},   // 2
        {EVEN, EVEN}   // 3
    };
    
    /** Sequence of parities to be used with supplemental 2.*/
    private static final byte PARITY5[][] =
    {
        {EVEN, EVEN, ODD,  ODD,  ODD},  // 0
        {EVEN, ODD,  EVEN, ODD,  ODD},  // 1
        {EVEN, ODD,  ODD,  EVEN, ODD},  // 2
        {EVEN, ODD,  ODD,  ODD,  EVEN}, // 3
        {ODD,  EVEN, EVEN, ODD,  ODD},  // 4
        {ODD,  ODD,  EVEN, EVEN, ODD},  // 5
        {ODD,  ODD,  ODD,  EVEN, EVEN}, // 6
        {ODD,  EVEN, ODD,  EVEN, ODD},  // 7
        {ODD,  EVEN, ODD,  ODD,  EVEN}, // 8
        {ODD,  ODD,  EVEN, ODD,  EVEN}  // 9
    };
    
    /** Sequence of parities to be used with UPCE.*/
    private static final byte PARITYE[][] =
    {
        {EVEN, EVEN, EVEN, ODD,  ODD,  ODD},  // 0
        {EVEN, EVEN, ODD,  EVEN, ODD,  ODD},  // 1
        {EVEN, EVEN, ODD,  ODD,  EVEN, ODD},  // 2
        {EVEN, EVEN, ODD,  ODD,  ODD,  EVEN}, // 3
        {EVEN, ODD,  EVEN, EVEN, ODD,  ODD},  // 4
        {EVEN, ODD,  ODD,  EVEN, EVEN, ODD},  // 5
        {EVEN, ODD,  ODD,  ODD,  EVEN, EVEN}, // 6
        {EVEN, ODD,  EVEN, ODD,  EVEN, ODD},  // 7
        {EVEN, ODD,  EVEN, ODD,  ODD,  EVEN}, // 8
        {EVEN, ODD,  ODD,  EVEN, ODD,  EVEN}  // 9
    };
    
    /** Creates new BarcodeEAN */
    public BarcodeEAN() {
        try {
            x = 0.8f;
            font = BaseFont.createFont("Helvetica", "winansi", false);
            size = 8;
            baseline = size;
            barHeight = size * 3;
            guardBars = true;
            codeType = EAN13;
            code = "";
        }
        catch (Exception e) {
            throw new ExceptionConverter(e);
        }
    }
    
    /** Calculates the EAN parity character.
     * @param code the code
     * @return the parity character
     */    
    public static int calculateEANParity(String code) {
        int mul = 3;
        int total = 0;
        for (int k = code.length() - 1; k >= 0; --k) {
            int n = code.charAt(k) - '0';
            total += mul * n;
            mul ^= 2;
        }
        return (10 - (total % 10)) % 10;
    }
    
    /** Converts an UPCA code into an UPCE code. If the code can not
     * be converted a <CODE>null</CODE> is returned.
     * @param text the code to convert. It must have 12 numeric characters
     * @return the 8 converted digits or <CODE>null</CODE> if the
     * code could not be converted
     */    
    static public String convertUPCAtoUPCE(String text) {
        if (text.length() != 12 || !(text.startsWith("0") || text.startsWith("1")))
            return null;
        if (text.substring(3, 6).equals("000") || text.substring(3, 6).equals("100")
            || text.substring(3, 6).equals("200")) {
                if (text.substring(6, 8).equals("00"))
                    return text.substring(0, 1) + text.substring(1, 3) + text.substring(8, 11) + text.substring(3, 4) + text.substring(11);
        }
        else if (text.substring(4, 6).equals("00")) {
            if (text.substring(6, 9).equals("000"))
                return text.substring(0, 1) + text.substring(1, 4) + text.substring(9, 11) + "3" + text.substring(11);
        }
        else if (text.substring(5, 6).equals("0")) {
            if (text.substring(6, 10).equals("0000"))
                return text.substring(0, 1) + text.substring(1, 5) + text.substring(10, 11) + "4" + text.substring(11);
        }
        else if (text.charAt(10) >= '5') {
            if (text.substring(6, 10).equals("0000"))
                return text.substring(0, 1) + text.substring(1, 6) + text.substring(10, 11) + text.substring(11);
        }
        return null;
    }
    
    /** Creates the bars for the barcode EAN13 and UPCA.
     * @param _code the text with 13 digits
     * @return the barcode
     */    
    public static byte[] getBarsEAN13(String _code) {
        int code[] = new int[_code.length()];
        for (int k = 0; k < code.length; ++k)
            code[k] = _code.charAt(k) - '0';
        byte bars[] = new byte[TOTALBARS_EAN13];
        int pb = 0;
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        byte sequence[] = PARITY13[code[0]];
        for (int k = 0; k < sequence.length; ++k) {
            int c = code[k + 1];
            byte stripes[] = BARS[c];
            if (sequence[k] == ODD) {
                bars[pb++] = stripes[0];
                bars[pb++] = stripes[1];
                bars[pb++] = stripes[2];
                bars[pb++] = stripes[3];
            }
            else {
                bars[pb++] = stripes[3];
                bars[pb++] = stripes[2];
                bars[pb++] = stripes[1];
                bars[pb++] = stripes[0];
            }
        }
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        for (int k = 7; k < 13; ++k) {
            int c = code[k];
            byte stripes[] = BARS[c];
            bars[pb++] = stripes[0];
            bars[pb++] = stripes[1];
            bars[pb++] = stripes[2];
            bars[pb++] = stripes[3];
        }
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        return bars;
    }
    
    /** Creates the bars for the barcode EAN8.
     * @param _code the text with 8 digits
     * @return the barcode
     */    
    public static byte[] getBarsEAN8(String _code) {
        int code[] = new int[_code.length()];
        for (int k = 0; k < code.length; ++k)
            code[k] = _code.charAt(k) - '0';
        byte bars[] = new byte[TOTALBARS_EAN8];
        int pb = 0;
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        for (int k = 0; k < 4; ++k) {
            int c = code[k];
            byte stripes[] = BARS[c];
            bars[pb++] = stripes[0];
            bars[pb++] = stripes[1];
            bars[pb++] = stripes[2];
            bars[pb++] = stripes[3];
        }
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        for (int k = 4; k < 8; ++k) {
            int c = code[k];
            byte stripes[] = BARS[c];
            bars[pb++] = stripes[0];
            bars[pb++] = stripes[1];
            bars[pb++] = stripes[2];
            bars[pb++] = stripes[3];
        }
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        return bars;
    }
    
    /** Creates the bars for the barcode UPCE.
     * @param _code the text with 8 digits
     * @return the barcode
     */    
    public static byte[] getBarsUPCE(String _code) {
        int code[] = new int[_code.length()];
        for (int k = 0; k < code.length; ++k)
            code[k] = _code.charAt(k) - '0';
        byte bars[] = new byte[TOTALBARS_UPCE];
        boolean flip = (code[0] != 0);
        int pb = 0;
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        byte sequence[] = PARITYE[code[code.length - 1]];
        for (int k = 1; k < code.length - 1; ++k) {
            int c = code[k];
            byte stripes[] = BARS[c];
            if (sequence[k - 1] == (flip ? EVEN : ODD)) {
                bars[pb++] = stripes[0];
                bars[pb++] = stripes[1];
                bars[pb++] = stripes[2];
                bars[pb++] = stripes[3];
            }
            else {
                bars[pb++] = stripes[3];
                bars[pb++] = stripes[2];
                bars[pb++] = stripes[1];
                bars[pb++] = stripes[0];
            }
        }
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 1;
        return bars;
    }

    /** Creates the bars for the barcode supplemental 2.
     * @param _code the text with 2 digits
     * @return the barcode
     */    
    public static byte[] getBarsSupplemental2(String _code) {
        int code[] = new int[2];
        for (int k = 0; k < code.length; ++k)
            code[k] = _code.charAt(k) - '0';
        byte bars[] = new byte[TOTALBARS_SUPP2];
        int pb = 0;
        int parity = (code[0] * 10 + code[1]) % 4;
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 2;
        byte sequence[] = PARITY2[parity];
        for (int k = 0; k < sequence.length; ++k) {
            if (k == 1) {
                bars[pb++] = 1;
                bars[pb++] = 1;
            }
            int c = code[k];
            byte stripes[] = BARS[c];
            if (sequence[k] == ODD) {
                bars[pb++] = stripes[0];
                bars[pb++] = stripes[1];
                bars[pb++] = stripes[2];
                bars[pb++] = stripes[3];
            }
            else {
                bars[pb++] = stripes[3];
                bars[pb++] = stripes[2];
                bars[pb++] = stripes[1];
                bars[pb++] = stripes[0];
            }
        }
        return bars;
    }   

    /** Creates the bars for the barcode supplemental 5.
     * @param _code the text with 5 digits
     * @return the barcode
     */    
    public static byte[] getBarsSupplemental5(String _code) {
        int code[] = new int[5];
        for (int k = 0; k < code.length; ++k)
            code[k] = _code.charAt(k) - '0';
        byte bars[] = new byte[TOTALBARS_SUPP5];
        int pb = 0;
        int parity = (((code[0] + code[2] + code[4]) * 3) + ((code[1] + code[3]) * 9)) % 10;
        bars[pb++] = 1;
        bars[pb++] = 1;
        bars[pb++] = 2;
        byte sequence[] = PARITY5[parity];
        for (int k = 0; k < sequence.length; ++k) {
            if (k != 0) {
                bars[pb++] = 1;
                bars[pb++] = 1;
            }
            int c = code[k];
            byte stripes[] = BARS[c];
            if (sequence[k] == ODD) {
                bars[pb++] = stripes[0];
                bars[pb++] = stripes[1];
                bars[pb++] = stripes[2];
                bars[pb++] = stripes[3];
            }
            else {
                bars[pb++] = stripes[3];
                bars[pb++] = stripes[2];
                bars[pb++] = stripes[1];
                bars[pb++] = stripes[0];
            }
        }
        return bars;
    }   
    
    /** Gets the maximum area that the barcode and the text, if
     * any, will occupy. The lower left corner is always (0, 0).
     * @return the size the barcode occupies.
     */    
    public Rectangle getBarcodeSize() {
        float width = 0;
        float height = barHeight;
        if (font != null) {
            if (baseline <= 0)
                height += -baseline + size;
            else
                height += baseline - font.getFontDescriptor(BaseFont.DESCENT, size);
        }
        switch (codeType) {
            case EAN13:
                width = x * (11 + 12 * 7);
                if (font != null) {
                    width += font.getWidthPoint(code.charAt(0), size);
                }
                break;
            case EAN8:
                width = x * (11 + 8 * 7);
                break;
            case UPCA:
                width = x * (11 + 12 * 7);
                if (font != null) {
                    width += font.getWidthPoint(code.charAt(0), size) + font.getWidthPoint(code.charAt(11), size);
                }
                break;
            case UPCE:
                width = x * (9 + 6 * 7);
                if (font != null) {
                    width += font.getWidthPoint(code.charAt(0), size) + font.getWidthPoint(code.charAt(7), size);
                }
                break;
            case SUPP2:
                width = x * (6 + 2 * 7);
                break;
            case SUPP5:
                width = x * (4 + 5 * 7 + 4 * 2);
                break;
            default:
                throw new RuntimeException(MessageLocalization.getComposedMessage("invalid.code.type"));
        }
        return new Rectangle(width, height);
    }
    
    /** Places the barcode in a <CODE>PdfContentByte</CODE>. The
     * barcode is always placed at coordinates (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 Rectangle placeBarcode(PdfContentByte cb, BaseColor barColor, BaseColor textColor) {
        Rectangle rect = getBarcodeSize();
        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.charAt(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;
        boolean 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 (Arrays.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, 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, 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, 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, 12));
                    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, 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, 8));
                    break;
                case SUPP2:
                case SUPP5:
                    for (int k = 0; k < code.length(); ++k) {
                        String c = code.substring(k, 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;
    }

    // AWT related methods (remove this if you port to Android / GAE)
    
    /** Creates a <CODE>java.awt.Image</CODE>. This image only
     * contains the bars without any text.
     * @param foreground the color of the bars
     * @param background the color of the background
     * @return the image
     */    
    public java.awt.Image createAwtImage(java.awt.Color foreground, java.awt.Color background) {
        int f = foreground.getRGB();
        int g = background.getRGB();
        java.awt.Canvas canvas = new java.awt.Canvas();

        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 RuntimeException(MessageLocalization.getComposedMessage("invalid.code.type"));
        }

        boolean print = true;
        int ptr = 0;
        int height = (int)barHeight;
        int pix[] = new int[width * height];
        for (int k = 0; k < bars.length; ++k) {
            int w = bars[k];
            int c = g;
            if (print)
                c = f;
            print = !print;
            for (int j = 0; j < w; ++j)
                pix[ptr++] = c;
        }
        for (int k = width; k < pix.length; k += width) {
            System.arraycopy(pix, 0, pix, k, width); 
        }
        java.awt.Image img = canvas.createImage(new java.awt.image.MemoryImageSource(width, height, pix, 0, width));
        
        return img;
    }    
}

com/itextpdf/text/pdf/BarcodeEAN.java

 

⇒ iText-2.1.6.jar - iText, a JAVA-PDF library

⇐ iText layout.jar Source Code

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⇑⇑ iText for PDF Generation

2021-07-03, 48136👍, 0💬