org.krysalis.barcode4j.output
Class AbstractCanvasProvider

java.lang.Object
  org.krysalis.barcode4j.output.AbstractCanvasProvider

All Implemented Interfaces:

CanvasProvider

Direct Known Subclasses:

AbstractXMLGeneratingCanvasProvider, BitmapCanvasProvider, EPSCanvasProvider, Java2DCanvasProvider

public abstract class AbstractCanvasProvider
extends java.lang.Object
implements CanvasProvider

Abstract base class for most CanvasProvider implementations.

Version:

$Id: AbstractCanvasProvider.java,v 1.4 2008/05/13 13:00:45 jmaerki Exp $

Author:

Jeremias Maerki

Field Summary

protected BarcodeDimension

bardim the cached barcode dimensions

Constructor Summary

AbstractCanvasProvider(int orientation)
Main constructor.

Method Summary

void	deviceCenteredText(java.lang.String text, double x1, double x2, double y1, java.lang.String fontName, double fontSize) Draws centered text.
void	deviceJustifiedText(java.lang.String text, double x1, double x2, double y1, java.lang.String fontName, double fontSize) Draws justified text.
void	establishDimensions(BarcodeDimension dim) Sets the dimensions of the barcode.
BarcodeDimension	getDimensions() Returns the barcode dimensions once established.
int	getOrientation() Returns the orientation of the barcode.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.krysalis.barcode4j.output.CanvasProvider

deviceFillRect, deviceText

Field Detail

bardim

protected BarcodeDimension bardim

the cached barcode dimensions

Constructor Detail

AbstractCanvasProvider

public AbstractCanvasProvider(int orientation)

Main constructor.

Parameters:

orientation - the orientation of the barcode

Method Detail

establishDimensions

public void establishDimensions(BarcodeDimension dim)

Sets the dimensions of the barcode.

Specified by:

establishDimensions in interface CanvasProvider

Parameters:

dim - the dimensions of the barcode

getDimensions

public BarcodeDimension getDimensions()

Returns the barcode dimensions once established.

Specified by:

getDimensions in interface CanvasProvider

Returns:

the barcode dimensions

getOrientation

public int getOrientation()

Returns the orientation of the barcode.

Specified by:

getOrientation in interface CanvasProvider

Returns:

the orientation (0, 90, 180 or 270)

deviceJustifiedText

public void deviceJustifiedText(java.lang.String text,
                                double x1,
                                double x2,
                                double y1,
                                java.lang.String fontName,
                                double fontSize)

Draws justified text.

Specified by:

deviceJustifiedText in interface CanvasProvider

Parameters:

text - the text to draw

x1 - the left boundary

x2 - the right boundary

y1 - the y coordinate

fontName - the name of the font

fontSize - the size of the font

deviceCenteredText

public void deviceCenteredText(java.lang.String text,
                               double x1,
                               double x2,
                               double y1,
                               java.lang.String fontName,
                               double fontSize)

Draws centered text.

Specified by:

deviceCenteredText in interface CanvasProvider

Parameters:

text - the text to draw

x1 - the left boundary

x2 - the right boundary

y1 - the y coordinate

fontName - the name of the font

fontSize - the size of the font