Package org.krysalis.barcode4j.impl.fourstate

Class FourStateLogicHandler

java.lang.Object

org.krysalis.barcode4j.impl.AbstractVariableHeightLogicHandler

org.krysalis.barcode4j.impl.fourstate.FourStateLogicHandler

All Implemented Interfaces:

BarcodeLogicHandler, ClassicBarcodeLogicHandler

public class FourStateLogicHandler
extends AbstractVariableHeightLogicHandler

Logic Handler to be used by "four-state" barcodes for painting on a Canvas.

Version:

$Id: FourStateLogicHandler.java,v 1.2 2008-05-13 13:00:43 jmaerki Exp $

Author:

Jeremias Maerki

Field Summary

Fields inherited from class org.krysalis.barcode4j.impl.AbstractVariableHeightLogicHandler

bcBean, canvas, x, y

Constructor Summary

Constructors

Constructor	Description
FourStateLogicHandler(HeightVariableBarcodeBean bcBean, Canvas canvas)	Constructor

Method Summary

Modifier and Type	Method	Description
void	addBar(boolean black, int height)	This method indicates a new bar to be painted.

Methods inherited from class org.krysalis.barcode4j.impl.AbstractVariableHeightLogicHandler

endBarcode, endBarGroup, getTextY, setTextAlignment, startBarcode, startBarGroup

Methods inherited from class java.lang.Object

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

Constructor Details

FourStateLogicHandler

public FourStateLogicHandler(HeightVariableBarcodeBean bcBean,
 Canvas canvas)

Constructor

Parameters:

bcBean - the barcode implementation class

canvas - the canvas to paint to

Method Details

addBar

public void addBar(boolean black,
 int height)

This method indicates a new bar to be painted.

Parameters:

black - True if the bar is to be painted black, False if white/transparent

height - logical weight of the bar. Concrete implementations are free to define this to be height or width. For example, 1 may be interpreted as "narrow bar", 2 as "wide bar" for certain barcodes. While other barcodes might define 1 to be "short bar", 2 as "tall bar". Also, this should not be confused with the effective painting width, or the actual physical size of the bar.