com.itextpdf.barcodes.qrcode

Class ByteMatrix

java.lang.Object

com.itextpdf.barcodes.qrcode.ByteMatrix

public final class ByteMatrix
extends Object

A class which wraps a 2D array of bytes. The default usage is signed. If you want to use it as a unsigned container, it's up to you to do byteValue & 0xff at each location. JAVAPORT: The original code was a 2D array of ints, but since it only ever gets assigned -1, 0, and 1, I'm going to use less memory and go with bytes.

Author:

dswitkin@google.com (Daniel Switkin)

Constructor Summary

Constructors

Constructor and Description
ByteMatrix(int width, int height) Create a ByteMatix of given width and height, with the values initialized to 0

Method Summary

Modifier and Type	Method and Description
void	clear(byte value) Resets the contents of the entire matrix to value
byte	get(int x, int y) Get the value of the byte at (x,y)
byte[][]	getArray()
int	getHeight()
int	getWidth()
void	set(int x, int y, byte value) Set the value of the byte at (x,y)
void	set(int x, int y, int value) Set the value of the byte at (x,y)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteMatrix

public ByteMatrix(int width,
                  int height)

Create a ByteMatix of given width and height, with the values initialized to 0

Parameters:

width - width of the matrix

height - height of the matrix

Method Detail

getHeight

public int getHeight()

Returns:

height of the matrix

getWidth

public int getWidth()

Returns:

width of the matrix

get

public byte get(int x,
                int y)

Get the value of the byte at (x,y)

Parameters:

x - the width coordinate

y - the height coordinate

Returns:

the byte value at position (x,y)

getArray

public byte[][] getArray()

Returns:

matrix as byte[][]

set

public void set(int x,
                int y,
                byte value)

Set the value of the byte at (x,y)

Parameters:

x - the width coordinate

y - the height coordinate

value - the new byte value

set

public void set(int x,
                int y,
                int value)

Set the value of the byte at (x,y)

Parameters:

x - the width coordinate

y - the height coordinate

value - the new byte value

clear

public void clear(byte value)

Resets the contents of the entire matrix to value

Parameters:

value - new value of every element

toString

public String toString()

Overrides:

toString in class Object

Returns:

String representation