com.itextpdf.barcodes

Class Barcode39

java.lang.Object

com.itextpdf.barcodes.Barcode1D

com.itextpdf.barcodes.Barcode39

public class Barcode39
extends Barcode1D

This class represents the barcode Code 39.

Code 39 is a variable length, discrete barcode symbology defined in ISO/IEC 16388:2007.

The Code 39 specification defines 43 characters, consisting of uppercase letters (A through Z), numeric digits (0 through 9) and a number of special characters (-, ., $, /, +, %, and space). An additional character (denoted '*') is used for both start and stop delimiters. Each character is composed of nine elements: five bars and four spaces.

Field Summary

Fields inherited from class com.itextpdf.barcodes.Barcode1D

ALIGN_CENTER, ALIGN_LEFT, ALIGN_RIGHT, altText, barHeight, baseline, checksumText, code, codeType, DEFAULT_BAR_BACKGROUND_COLOR, DEFAULT_BAR_FOREGROUND_COLOR, document, extended, font, generateChecksum, guardBars, inkSpreading, n, size, startStopText, textAlignment, x

Constructor Summary

Constructors

Constructor and Description
Barcode39(PdfDocument document) Creates a new Barcode39.
Barcode39(PdfDocument document, PdfFont font) Creates a new Barcode39.

Method Summary

Modifier and Type	Method and Description
Image	createAwtImage(Color foreground, Color background) Creates a java.awt.Image.
Rectangle	getBarcodeSize() Gets the maximum area that the barcode and the text, if any, will occupy.
static byte[]	getBarsCode39(String text) Creates the bars.
static String	getCode39Ex(String text) Converts the extended text into a normal, escaped text, ready to generate bars.
Rectangle	placeBarcode(PdfCanvas canvas, Color barColor, Color textColor) Places the barcode in a PdfCanvas.

Methods inherited from class com.itextpdf.barcodes.Barcode1D

createFormXObject, createFormXObject, fitWidth, getAltText, getBarHeight, getBaseline, getCode, getCodeType, getDescender, getFont, getInkSpreading, getN, getSize, getTextAlignment, getX, isChecksumText, isExtended, isGenerateChecksum, isGuardBars, isStartStopText, setAltText, setBarHeight, setBaseline, setChecksumText, setCode, setCodeType, setExtended, setFont, setGenerateChecksum, setGuardBars, setInkSpreading, setN, setSize, setStartStopText, setTextAlignment, setX

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Barcode39

public Barcode39(PdfDocument document)

Creates a new Barcode39. To generate the font the PdfDocument.getDefaultFont() will be implicitly called. If you want to use this barcode in PDF/A documents, please consider using Barcode39(PdfDocument, PdfFont).

Parameters:

document - The document to which the barcode will be added

Barcode39

public Barcode39(PdfDocument document,
                 PdfFont font)

Creates a new Barcode39.

Parameters:

document - The document to which the barcode will be added

font - The font to use

Method Detail

getBarsCode39

public static byte[] getBarsCode39(String text)

Creates the bars.

Parameters:

text - the text to create the bars. This text does not include the start and stop characters

Returns:

the bars

getCode39Ex

public static String getCode39Ex(String text)

Converts the extended text into a normal, escaped text, ready to generate bars.

Parameters:

text - the extended text

Returns:

the escaped text

getBarcodeSize

public Rectangle getBarcodeSize()

Gets the maximum area that the barcode and the text, if any, will occupy. The lower left corner is always (0, 0).

Specified by:

getBarcodeSize in class Barcode1D

Returns:

the size the barcode occupies.

placeBarcode

public Rectangle placeBarcode(PdfCanvas canvas,
                              Color barColor,
                              Color textColor)

Places the barcode in a PdfCanvas. The barcode is always placed at coordinates (0, 0). Use the translation matrix to move it elsewhere.

The bars and text are written in the following colors:

barColor	textColor	Result
null	null	bars and text painted with current fill color
barColor	null	bars and text painted with barColor
null	textColor	bars painted with current color text painted with textColor
barColor	textColor	bars painted with barColor text painted with textColor

Specified by:

placeBarcode in class Barcode1D

Parameters:

canvas - the PdfCanvas where the barcode will be placed

barColor - the color of the bars. It can be null

textColor - the color of the text. It can be null

Returns:

the dimensions the barcode occupies

createAwtImage

public Image createAwtImage(Color foreground,
                            Color background)

Creates a java.awt.Image. This image only contains the bars without any text.

Specified by:

createAwtImage in class Barcode1D

Parameters:

foreground - the color of the bars

background - the color of the background

Returns:

the image