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com.lowagie.text.pdf

Class BarcodeEAN

public class BarcodeEAN extends Barcode

Generates barcodes in several formats: EAN13, EAN8, UPCA, UPCE, supplemental 2 and 5. The default parameters are: 
x = 0.8f;
font = BaseFont.createFont("Helvetica", "winansi", false);
size = 8;
baseline = size;
barHeight = size * 3;
guardBars = true;
codeType = EAN13;
code = "";

Author: Paulo Soares (psoares@consiste.pt)

Field Summary
static byte[][]BARS
The basic bar widths.
static intEVEN
Marker for even parity.
static int[]GUARD_EAN13
The bar positions that are guard bars.
static int[]GUARD_EAN8
The bar positions that are guard bars.
static int[]GUARD_EMPTY
The bar positions that are guard bars.
static int[]GUARD_UPCA
The bar positions that are guard bars.
static int[]GUARD_UPCE
The bar positions that are guard bars.
static intODD
Marker for odd parity.
static byte[][]PARITY13
Sequence of parities to be used with EAN13.
static byte[][]PARITY2
Sequence of parities to be used with supplemental 2.
static byte[][]PARITY5
Sequence of parities to be used with supplemental 2.
static byte[][]PARITYE
Sequence of parities to be used with UPCE.
static float[]TEXTPOS_EAN13
The x coordinates to place the text.
static float[]TEXTPOS_EAN8
The x coordinates to place the text.
static intTOTALBARS_EAN13
The total number of bars for EAN13.
static intTOTALBARS_EAN8
The total number of bars for EAN8.
static intTOTALBARS_SUPP2
The total number of bars for supplemental 2.
static intTOTALBARS_SUPP5
The total number of bars for supplemental 5.
static intTOTALBARS_UPCE
The total number of bars for UPCE.
Constructor Summary
BarcodeEAN()
Creates new BarcodeEAN
Method Summary
static intcalculateEANParity(String code)
Calculates the EAN parity character.
static StringconvertUPCAtoUPCE(String text)
Converts an UPCA code into an UPCE code.
ImagecreateAwtImage(Color foreground, Color background)
Creates a java.awt.Image.
RectanglegetBarcodeSize()
Gets the maximum area that the barcode and the text, if any, will occupy.
static byte[]getBarsEAN13(String _code)
Creates the bars for the barcode EAN13 and UPCA.
static byte[]getBarsEAN8(String _code)
Creates the bars for the barcode EAN8.
static byte[]getBarsSupplemental2(String _code)
Creates the bars for the barcode supplemental 2.
static byte[]getBarsSupplemental5(String _code)
Creates the bars for the barcode supplemental 5.
static byte[]getBarsUPCE(String _code)
Creates the bars for the barcode UPCE.
RectangleplaceBarcode(PdfContentByte cb, Color barColor, Color textColor)
Places the barcode in a PdfContentByte.

Field Detail

BARS

private static final byte[][] BARS
The basic bar widths.

EVEN

private static final int EVEN
Marker for even parity.

GUARD_EAN13

private static final int[] GUARD_EAN13
The bar positions that are guard bars.

GUARD_EAN8

private static final int[] GUARD_EAN8
The bar positions that are guard bars.

GUARD_EMPTY

private static final int[] GUARD_EMPTY
The bar positions that are guard bars.

GUARD_UPCA

private static final int[] GUARD_UPCA
The bar positions that are guard bars.

GUARD_UPCE

private static final int[] GUARD_UPCE
The bar positions that are guard bars.

ODD

private static final int ODD
Marker for odd parity.

PARITY13

private static final byte[][] PARITY13
Sequence of parities to be used with EAN13.

PARITY2

private static final byte[][] PARITY2
Sequence of parities to be used with supplemental 2.

PARITY5

private static final byte[][] PARITY5
Sequence of parities to be used with supplemental 2.

PARITYE

private static final byte[][] PARITYE
Sequence of parities to be used with UPCE.

TEXTPOS_EAN13

private static final float[] TEXTPOS_EAN13
The x coordinates to place the text.

TEXTPOS_EAN8

private static final float[] TEXTPOS_EAN8
The x coordinates to place the text.

TOTALBARS_EAN13

private static final int TOTALBARS_EAN13
The total number of bars for EAN13.

TOTALBARS_EAN8

private static final int TOTALBARS_EAN8
The total number of bars for EAN8.

TOTALBARS_SUPP2

private static final int TOTALBARS_SUPP2
The total number of bars for supplemental 2.

TOTALBARS_SUPP5

private static final int TOTALBARS_SUPP5
The total number of bars for supplemental 5.

TOTALBARS_UPCE

private static final int TOTALBARS_UPCE
The total number of bars for UPCE.

Constructor Detail

BarcodeEAN

public BarcodeEAN()
Creates new BarcodeEAN

Method Detail

calculateEANParity

public static int calculateEANParity(String code)
Calculates the EAN parity character.

Parameters: code the code

Returns: the parity character

convertUPCAtoUPCE

public static String convertUPCAtoUPCE(String text)
Converts an UPCA code into an UPCE code. If the code can not be converted a null is returned.

Parameters: text the code to convert. It must have 12 numeric characters

Returns: the 8 converted digits or null if the code could not be converted

createAwtImage

public Image createAwtImage(Color foreground, Color background)
Creates a java.awt.Image. This image only contains the bars without any text.

Parameters: foreground the color of the bars background the color of the background

Returns: the image

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).

Returns: the size the barcode occupies.

getBarsEAN13

public static byte[] getBarsEAN13(String _code)
Creates the bars for the barcode EAN13 and UPCA.

Parameters: _code the text with 13 digits

Returns: the barcode

getBarsEAN8

public static byte[] getBarsEAN8(String _code)
Creates the bars for the barcode EAN8.

Parameters: _code the text with 8 digits

Returns: the barcode

getBarsSupplemental2

public static byte[] getBarsSupplemental2(String _code)
Creates the bars for the barcode supplemental 2.

Parameters: _code the text with 2 digits

Returns: the barcode

getBarsSupplemental5

public static byte[] getBarsSupplemental5(String _code)
Creates the bars for the barcode supplemental 5.

Parameters: _code the text with 5 digits

Returns: the barcode

getBarsUPCE

public static byte[] getBarsUPCE(String _code)
Creates the bars for the barcode UPCE.

Parameters: _code the text with 8 digits

Returns: the barcode

placeBarcode

public Rectangle placeBarcode(PdfContentByte cb, Color barColor, Color textColor)
Places the barcode in a PdfContentByte. 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

Parameters: cb the PdfContentByte 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

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