org.krysalis.barcode4j.impl.codabar
Class CodabarLogicImpl

java.lang.Object
  org.krysalis.barcode4j.impl.codabar.CodabarLogicImpl

public class CodabarLogicImpl
extends java.lang.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

CodabarLogicImpl(ChecksumMode mode)
Main constructor

CodabarLogicImpl(ChecksumMode mode, boolean displayStartStop)
Main constructor

Method Summary

protected void	encodeChar(ClassicBarcodeLogicHandler logic, char ch) Encodes a character to a logic handler.
void	generateBarcodeLogic(ClassicBarcodeLogicHandler logic, java.lang.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,
                                 java.lang.String msg)

Generates the barcode logic.

Parameters:

logic - the logic handler to send generated events to

msg - the message to encode