org.krysalis.barcode4j.impl.codabar

Class CodabarLogicImpl

java.lang.Object

org.krysalis.barcode4j.impl.codabar.CodabarLogicImpl

public class CodabarLogicImpl
extends Object

This class is an implementation of the Codabar barcode.

Version:

$Id: CodabarLogicImpl.java,v 1.4 2008-11-22 09:57:10 jmaerki Exp $

Author:

Jeremias Maerki todo: Complete the implementation (checksum, automatic start/stops chars...)

Constructor Summary

Constructors

Constructor and Description
CodabarLogicImpl(ChecksumMode mode) Main constructor
CodabarLogicImpl(ChecksumMode mode, boolean displayStartStop) Main constructor

Method Summary

Modifier and Type	Method and Description
protected void	encodeChar(ClassicBarcodeLogicHandler logic, char ch) Encodes a character to a logic handler.
void	generateBarcodeLogic(ClassicBarcodeLogicHandler logic, String msg) Generates the barcode logic.
protected static int	getCharIndex(char ch) Returns the index of a character within the character set.
ChecksumMode	getChecksumMode() Returns the checksum mode.
protected static boolean	isStartStopChar(char ch) Determines whether a character is on of the start/stop characters.
protected static boolean	isValidChar(char ch) Determines whether a character is a valid message character.

Methods inherited from class java.lang.Object

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

Constructor Detail

CodabarLogicImpl

public CodabarLogicImpl(ChecksumMode mode)

Main constructor

Parameters:

mode - Determines how checksums are to be treated.

CodabarLogicImpl

public CodabarLogicImpl(ChecksumMode mode,
                        boolean displayStartStop)

Main constructor

Parameters:

mode - Determines how checksums are to be treated.

displayStartStop - enables or disables suppressing the start/stop characters from the human-readable part

Method Detail

getChecksumMode

public ChecksumMode getChecksumMode()

Returns the checksum mode.

Returns:

the current checksum mode

getCharIndex

protected static int getCharIndex(char ch)

Returns the index of a character within the character set.

Parameters:

ch - the character to lookup

Returns:

the index of the character or -1 if it isn't supported

isValidChar

protected static boolean isValidChar(char ch)

Determines whether a character is a valid message character.

Parameters:

ch - the character to check

Returns:

true if it is a valid character, false otherwise

isStartStopChar

protected static boolean isStartStopChar(char ch)

Determines whether a character is on of the start/stop characters.

Parameters:

ch - the character to check

Returns:

true if it is a start/stop character

encodeChar

protected void encodeChar(ClassicBarcodeLogicHandler logic,
                          char ch)

Encodes a character to a logic handler.

Parameters:

logic - the logic handler to send events to

ch - the character to encode

generateBarcodeLogic

public void generateBarcodeLogic(ClassicBarcodeLogicHandler logic,
                                 String msg)

Generates the barcode logic.

Parameters:

logic - the logic handler to send generated events to

msg - the message to encode