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/Barcode39.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 com.itextpdf.text.error_messages.MessageLocalization;

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

/** Implements the code 39 and code 39 extended. The default parameters are:
 * <pre>
 *x = 0.8f;
 *n = 2;
 *font = BaseFont.createFont("Helvetica", "winansi", false);
 *size = 8;
 *baseline = size;
 *barHeight = size * 3;
 *textAlignment = Element.ALIGN_CENTER;
 *generateChecksum = false;
 *checksumText = false;
 *startStopText = true;
 *extended = false;
 * </pre>
 *
 * @author Paulo Soares
 */
public class Barcode39 extends Barcode{

    /** The bars to generate the code.
     */    
    private static final byte BARS[][] = 
    {
        {0,0,0,1,1,0,1,0,0},
        {1,0,0,1,0,0,0,0,1},
        {0,0,1,1,0,0,0,0,1},
        {1,0,1,1,0,0,0,0,0},
        {0,0,0,1,1,0,0,0,1},
        {1,0,0,1,1,0,0,0,0},
        {0,0,1,1,1,0,0,0,0},
        {0,0,0,1,0,0,1,0,1},
        {1,0,0,1,0,0,1,0,0},
        {0,0,1,1,0,0,1,0,0},
        {1,0,0,0,0,1,0,0,1},
        {0,0,1,0,0,1,0,0,1},
        {1,0,1,0,0,1,0,0,0},
        {0,0,0,0,1,1,0,0,1},
        {1,0,0,0,1,1,0,0,0},
        {0,0,1,0,1,1,0,0,0},
        {0,0,0,0,0,1,1,0,1},
        {1,0,0,0,0,1,1,0,0},
        {0,0,1,0,0,1,1,0,0},
        {0,0,0,0,1,1,1,0,0},
        {1,0,0,0,0,0,0,1,1},
        {0,0,1,0,0,0,0,1,1},
        {1,0,1,0,0,0,0,1,0},
        {0,0,0,0,1,0,0,1,1},
        {1,0,0,0,1,0,0,1,0},
        {0,0,1,0,1,0,0,1,0},
        {0,0,0,0,0,0,1,1,1},
        {1,0,0,0,0,0,1,1,0},
        {0,0,1,0,0,0,1,1,0},
        {0,0,0,0,1,0,1,1,0},
        {1,1,0,0,0,0,0,0,1},
        {0,1,1,0,0,0,0,0,1},
        {1,1,1,0,0,0,0,0,0},
        {0,1,0,0,1,0,0,0,1},
        {1,1,0,0,1,0,0,0,0},
        {0,1,1,0,1,0,0,0,0},
        {0,1,0,0,0,0,1,0,1},
        {1,1,0,0,0,0,1,0,0},
        {0,1,1,0,0,0,1,0,0},
        {0,1,0,1,0,1,0,0,0},
        {0,1,0,1,0,0,0,1,0},
        {0,1,0,0,0,1,0,1,0},
        {0,0,0,1,0,1,0,1,0},
        {0,1,0,0,1,0,1,0,0}
    };
 
    /** The index chars to <CODE>BARS</CODE>.
     */    
    private static final String CHARS = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%*";
    
    /** The character combinations to make the code 39 extended.
     */    
    private static final String EXTENDED = "%U" +
        "$A$B$C$D$E$F$G$H$I$J$K$L$M$N$O$P$Q$R$S$T$U$V$W$X$Y$Z" +
        "%A%B%C%D%E  /A/B/C/D/E/F/G/H/I/J/K/L - ./O" +
        " 0 1 2 3 4 5 6 7 8 9/Z%F%G%H%I%J%V" +
        " A B C D E F G H I J K L M N O P Q R S T U V W X Y Z" +
        "%K%L%M%N%O%W" +
        "+A+B+C+D+E+F+G+H+I+J+K+L+M+N+O+P+Q+R+S+T+U+V+W+X+Y+Z" +
        "%P%Q%R%S%T";
        
    /** Creates a new Barcode39.
     */    
    public Barcode39() {
        try {
            x = 0.8f;
            n = 2;
            font = BaseFont.createFont("Helvetica", "winansi", false);
            size = 8;
            baseline = size;
            barHeight = size * 3;
            textAlignment = Element.ALIGN_CENTER;
            generateChecksum = false;
            checksumText = false;
            startStopText = true;
            extended = false;
        }
        catch (Exception e) {
            throw new ExceptionConverter(e);
        }
    }
    
    /** Creates the bars.
     * @param text the text to create the bars. This text does not include the start and
     * stop characters
     * @return the bars
     */    
    public static byte[] getBarsCode39(String text) {
        text = "*" + text + "*";
        byte bars[] = new byte[text.length() * 10 - 1];
        for (int k = 0; k < text.length(); ++k) {
            int idx = CHARS.indexOf(text.charAt(k));
            if (idx < 0)
                throw new IllegalArgumentException(MessageLocalization.getComposedMessage("the.character.1.is.illegal.in.code.39", text.charAt(k)));
            System.arraycopy(BARS[idx], 0, bars, k * 10, 9);
        }
        return bars;
    }
    
    /** Converts the extended text into a normal, escaped text,
     * ready to generate bars.
     * @param text the extended text
     * @return the escaped text
     */    
    public static String getCode39Ex(String text) {
        StringBuilder out = new StringBuilder("");
        for (int k = 0; k < text.length(); ++k) {
            char c = text.charAt(k);
            if (c > 127)
                throw new IllegalArgumentException(MessageLocalization.getComposedMessage("the.character.1.is.illegal.in.code.39.extended", c));
            char c1 = EXTENDED.charAt(c * 2);
            char c2 = EXTENDED.charAt(c * 2 + 1);
            if (c1 != ' ')
                out.append(c1);
            out.append(c2);
        }
        return out.toString();
    }
    
    /** Calculates the checksum.
     * @param text the text
     * @return the checksum
     */    
    static char getChecksum(String text) {
        int chk = 0;
        for (int k = 0; k < text.length(); ++k) {
            int idx = CHARS.indexOf(text.charAt(k));
            if (idx < 0)
                throw new IllegalArgumentException(MessageLocalization.getComposedMessage("the.character.1.is.illegal.in.code.39", text.charAt(k)));
            chk += idx;
        }
        return CHARS.charAt(chk % 43);
    }
    
    /** 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 fontX = 0;
        float fontY = 0;
        String fCode = code;
        if (extended)
            fCode = getCode39Ex(code);
        if (font != null) {
            if (baseline > 0)
                fontY = baseline - font.getFontDescriptor(BaseFont.DESCENT, size);
            else
                fontY = -baseline + size;
            String fullCode = code;
            if (generateChecksum && checksumText)
                fullCode += getChecksum(fCode);
            if (startStopText)
                fullCode = "*" + fullCode + "*";
            fontX = font.getWidthPoint(altText != null ? altText : fullCode, size);
        }
        int len = fCode.length() + 2;
        if (generateChecksum)
            ++len;
        float fullWidth = len * (6 * x + 3 * x * n) + (len - 1) * x;
        fullWidth = Math.max(fullWidth, fontX);
        float fullHeight = barHeight + fontY;
        return new Rectangle(fullWidth, fullHeight);
    }
    
    /** 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) {
        String fullCode = code;
        float fontX = 0;
        String bCode = code;
        if (extended)
            bCode = getCode39Ex(code);
        if (font != null) {
            if (generateChecksum && checksumText)
                fullCode += getChecksum(bCode);
            if (startStopText)
                fullCode = "*" + fullCode + "*";
            fontX = font.getWidthPoint(fullCode = altText != null ? altText : fullCode, size);
        }
        if (generateChecksum)
            bCode += getChecksum(bCode);
        int len = bCode.length() + 2;
        float fullWidth = len * (6 * x + 3 * x * n) + (len - 1) * x;
        float barStartX = 0;
        float textStartX = 0;
        switch (textAlignment) {
            case Element.ALIGN_LEFT:
                break;
            case Element.ALIGN_RIGHT:
                if (fontX > fullWidth)
                    barStartX = fontX - fullWidth;
                else
                    textStartX = fullWidth - fontX;
                break;
            default:
                if (fontX > fullWidth)
                    barStartX = (fontX - fullWidth) / 2;
                else
                    textStartX = (fullWidth - fontX) / 2;
                break;
        }
        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;
            }
        }
        byte bars[] = getBarsCode39(bCode);
        boolean print = true;
        if (barColor != null)
            cb.setColorFill(barColor);
        for (int k = 0; k < bars.length; ++k) {
            float w = (bars[k] == 0 ? x : x * n);
            if (print)
                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);
            cb.setTextMatrix(textStartX, textStartY);
            cb.showText(fullCode);
            cb.endText();
        }
        return getBarcodeSize();
    }

    // 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();

        String bCode = code;
        if (extended)
            bCode = getCode39Ex(code);
        if (generateChecksum)
            bCode += getChecksum(bCode);
        int len = bCode.length() + 2;
        int nn = (int)n;
        int fullWidth = len * (6 + 3 * nn) + (len - 1);
        byte bars[] = getBarsCode39(bCode);
        boolean print = true;
        int ptr = 0;
        int height = (int)barHeight;
        int pix[] = new int[fullWidth * height];
        for (int k = 0; k < bars.length; ++k) {
            int w = (bars[k] == 0 ? 1 : nn);
            int c = g;
            if (print)
                c = f;
            print = !print;
            for (int j = 0; j < w; ++j)
                pix[ptr++] = c;
        }
        for (int k = fullWidth; k < pix.length; k += fullWidth) {
            System.arraycopy(pix, 0, pix, k, fullWidth); 
        }
        java.awt.Image img = canvas.createImage(new java.awt.image.MemoryImageSource(fullWidth, height, pix, 0, fullWidth));
        
        return img;
    }    
}

com/itextpdf/text/pdf/Barcode39.java

 

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

⇐ iText layout.jar Source Code

⇑ Download and Install iText Java Library

⇑⇑ iText for PDF Generation

2021-07-03, 47733👍, 0💬