com.itextpdf.text.pdf

Class BarcodeDatamatrix

java.lang.Object

com.itextpdf.text.pdf.BarcodeDatamatrix

public class BarcodeDatamatrix
extends Object

A DataMatrix 2D barcode generator.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DM_ASCII ASCII encodation.
static int	DM_AUTO The best encodation will be used.
static int	DM_B256 Binary encodation.
static int	DM_C40 C40 encodation.
static int	DM_EDIFACT EDIFACT encodation.
static int	DM_ERROR_EXTENSION An error while parsing an extension.
static int	DM_ERROR_INVALID_SQUARE The dimensions given for the symbol are illegal.
static int	DM_ERROR_TEXT_TOO_BIG The text is too big for the symbology capabilities.
static int	DM_EXTENSION Allows extensions to be embedded at the start of the text.
static int	DM_NO_ERROR No error.
static int	DM_RAW No encodation needed.
static int	DM_TEST Doesn't generate the image but returns all the other information.
static int	DM_TEXT TEXT encodation.
static int	DM_X21 X21 encodation.

Constructor Summary

Constructors

Constructor and Description
BarcodeDatamatrix() Creates an instance of this class.

Method Summary

Modifier and Type	Method and Description
Image	createAwtImage(Color foreground, Color background) Creates a java.awt.Image.
Image	createImage() Gets an Image with the barcode.
int	generate(byte[] text, int textOffset, int textSize) Creates a barcode.
int	generate(String text) Creates a barcode.
int	getHeight() Gets the height of the barcode.
byte[]	getImage() Gets the generated image.
int	getOptions() Gets the barcode options.
int	getWidth() Gets the width of the barcode.
int	getWs() Gets the whitespace border around the barcode.
void	placeBarcode(PdfContentByte cb, BaseColor foreground, float moduleHeight, float moduleWidth)
void	setForceSquareSize(boolean forceSquareSize)
void	setHeight(int height) Sets the height of the barcode.
void	setOptions(int options) Sets the options for the barcode generation.
void	setWidth(int width) Sets the width of the barcode.
void	setWs(int ws) Sets the whitespace border around the barcode.

Methods inherited from class java.lang.Object

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

Field Detail

DM_NO_ERROR

public static final int DM_NO_ERROR

No error.

See Also:

Constant Field Values

DM_ERROR_TEXT_TOO_BIG

public static final int DM_ERROR_TEXT_TOO_BIG

The text is too big for the symbology capabilities.

See Also:

Constant Field Values

DM_ERROR_INVALID_SQUARE

public static final int DM_ERROR_INVALID_SQUARE

The dimensions given for the symbol are illegal.

See Also:

Constant Field Values

DM_ERROR_EXTENSION

public static final int DM_ERROR_EXTENSION

An error while parsing an extension.

See Also:

Constant Field Values

DM_AUTO

public static final int DM_AUTO

The best encodation will be used.

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Constant Field Values

DM_ASCII

public static final int DM_ASCII

ASCII encodation.

See Also:

Constant Field Values

DM_C40

public static final int DM_C40

C40 encodation.

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Constant Field Values

DM_TEXT

public static final int DM_TEXT

TEXT encodation.

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Constant Field Values

DM_B256

public static final int DM_B256

Binary encodation.

See Also:

Constant Field Values

DM_X21

public static final int DM_X21

X21 encodation.

See Also:

Constant Field Values

DM_EDIFACT

public static final int DM_EDIFACT

EDIFACT encodation.

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Constant Field Values

DM_RAW

public static final int DM_RAW

No encodation needed. The bytes provided are already encoded.

See Also:

Constant Field Values

DM_EXTENSION

public static final int DM_EXTENSION

Allows extensions to be embedded at the start of the text.

See Also:

Constant Field Values

DM_TEST

public static final int DM_TEST

Doesn't generate the image but returns all the other information.

See Also:

Constant Field Values

Constructor Detail

BarcodeDatamatrix

public BarcodeDatamatrix()

Creates an instance of this class.

Method Detail

generate

public int generate(String text)
             throws UnsupportedEncodingException

Creates a barcode. The String is interpreted with the ISO-8859-1 encoding

Parameters:

text - the text

Returns:

the status of the generation. It can be one of this values:

DM_NO_ERROR - no error.
DM_ERROR_TEXT_TOO_BIG - the text is too big for the symbology capabilities.
DM_ERROR_INVALID_SQUARE - the dimensions given for the symbol are illegal.
DM_ERROR_EXTENSION - an error was while parsing an extension.

Throws:

UnsupportedEncodingException - on error

generate

public int generate(byte[] text,
                    int textOffset,
                    int textSize)

Creates a barcode.

Parameters:

text - the text

textOffset - the offset to the start of the text

textSize - the text size

Returns:

the status of the generation. It can be one of this values:

DM_NO_ERROR - no error.
DM_ERROR_TEXT_TOO_BIG - the text is too big for the symbology capabilities.
DM_ERROR_INVALID_SQUARE - the dimensions given for the symbol are illegal.
DM_ERROR_EXTENSION - an error was while parsing an extension.

createImage

public Image createImage()
                  throws BadElementException

Gets an Image with the barcode. A successful call to the method generate() before calling this method is required.

Returns:

the barcode Image

Throws:

BadElementException - on error

getImage

public byte[] getImage()

Gets the generated image. The image is represented as a stream of bytes, each byte representing 8 pixels, 0 for white and 1 for black, with the high-order bit of each byte first. Each row is aligned at byte boundaries. The dimensions of the image are defined by height and width plus 2 * ws.

Returns:

the generated image

getHeight

public int getHeight()

Gets the height of the barcode. Will contain the real height used after a successful call to generate(). This height doesn't include the whitespace border, if any.

Returns:

the height of the barcode

setHeight

public void setHeight(int height)

Sets the height of the barcode. If the height is zero it will be calculated. This height doesn't include the whitespace border, if any.

The allowed dimensions are (height, width):

10, 10
12, 12
8, 18
14, 14
8, 32
16, 16
12, 26
18, 18
20, 20
12, 36
22, 22
16, 36
24, 24
26, 26
16, 48
32, 32
36, 36
40, 40
44, 44
48, 48
52, 52
64, 64
72, 72
80, 80
88, 88
96, 96
104, 104
120, 120
132, 132
144, 144

Parameters:

height - the height of the barcode

getWidth

public int getWidth()

Gets the width of the barcode. Will contain the real width used after a successful call to generate(). This width doesn't include the whitespace border, if any.

Returns:

the width of the barcode

setWidth

public void setWidth(int width)

Sets the width of the barcode. If the width is zero it will be calculated. This width doesn't include the whitespace border, if any.

The allowed dimensions are (height, width):

10, 10
12, 12
8, 18
14, 14
8, 32
16, 16
12, 26
18, 18
20, 20
12, 36
22, 22
16, 36
24, 24
26, 26
16, 48
32, 32
36, 36
40, 40
44, 44
48, 48
52, 52
64, 64
72, 72
80, 80
88, 88
96, 96
104, 104
120, 120
132, 132
144, 144

Parameters:

width - the width of the barcode

getWs

public int getWs()

Gets the whitespace border around the barcode.

Returns:

the whitespace border around the barcode

setWs

public void setWs(int ws)

Sets the whitespace border around the barcode.

Parameters:

ws - the whitespace border around the barcode

getOptions

public int getOptions()

Gets the barcode options.

Returns:

the barcode options

setOptions

public void setOptions(int options)

Sets the options for the barcode generation. The options can be:

One of:
DM_AUTO - the best encodation will be used
DM_ASCII - ASCII encodation
DM_C40 - C40 encodation
DM_TEXT - TEXT encodation
DM_B256 - binary encodation
DM_X21 - X21 encodation
DM_EDIFACT - EDIFACT encodation
DM_RAW - no encodation. The bytes provided are already encoded and will be added directly to the barcode, using padding if needed. It assumes that the encodation state is left at ASCII after the last byte.

One of:
DM_EXTENSION - allows extensions to be embedded at the start of the text:

exxxxxx - ECI number xxxxxx
m5 - macro 5
m6 - macro 6
f - FNC1
saabbccccc - Structured Append, aa symbol position (1-16), bb total number of symbols (2-16), ccccc file identification (0-64515)
p - Reader programming
. - extension terminator

Example for a structured append, symbol 2 of 6, with FNC1 and ECI 000005. The actual text is "Hello".

s020600075fe000005.Hello

One of:
DM_TEST - doesn't generate the image but returns all the other information.

Parameters:

options - the barcode options

setForceSquareSize

public void setForceSquareSize(boolean forceSquareSize)

placeBarcode

public void placeBarcode(PdfContentByte cb,
                         BaseColor foreground,
                         float moduleHeight,
                         float moduleWidth)

createAwtImage

public Image createAwtImage(Color foreground,
                            Color background)

Creates a java.awt.Image. A successful call to the method generate() before calling this method is required.

Parameters:

foreground - the color of the bars

background - the color of the background

Returns:

the image