Package org.krysalis.barcode4j

Interface ClassicBarcodeLogicHandler

All Superinterfaces:
BarcodeLogicHandler
All Known Subinterfaces:
TwoDimBarcodeLogicHandler
All Known Implementing Classes:
AbstractVariableHeightLogicHandler, DefaultCanvasLogicHandler, DefaultTwoDimCanvasLogicHandler, FourStateLogicHandler, ITF14CanvasLogicHandler, POSTNETLogicHandler, UPCEANCanvasLogicHandler
public interface ClassicBarcodeLogicHandler extends BarcodeLogicHandler
This interface defines methods to build classic 1D barcodes.
Version:
$Id: ClassicBarcodeLogicHandler.java,v 1.2 2004-09-04 20:25:54 jmaerki Exp $
Author:
Jeremias Maerki

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    addBar(boolean black, int weight)
    This method indicates a new bar to be painted.
    void
    endBarGroup()
    This method indicates the end of a previously started bar group.
    void
    startBarGroup(BarGroup type, String submsg)
    This method is called when a new group of bars is about to start.

    Methods inherited from interface org.krysalis.barcode4j.BarcodeLogicHandler

    endBarcode, startBarcode

  • Method Details

    • startBarGroup

      void startBarGroup(BarGroup type, String submsg)
      This method is called when a new group of bars is about to start. A group of bars may be generated by a character (or group of characters) of the message to be encoded or by a start/end control group.
      Parameters:
      type - a constant indicating the type of group. The meaning of the integer values is implementation-dependant.
      submsg - In case of parts of the message to be encoded this parameter holds the character or characters being encoded.

    • addBar

      void addBar(boolean black, int weight)
      This method indicates a new bar to be painted.
      Parameters:
      black - True if the bar is to be painted black, False if white/transparent
      weight - 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.

    • endBarGroup

      void endBarGroup()
      This method indicates the end of a previously started bar group. The method calls to startBarGroup and endBarGroup form a stack.