Package com.itextpdf.text.pdf.qrcode

Class Version

java.lang.Object

com.itextpdf.text.pdf.qrcode.Version

public final class Version
extends java.lang.Object

See ISO 18004:2006 Annex D

Since:

5.0.2

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Version.ECB	Encapsualtes the parameters for one error-correction block in one symbol version.
static class	Version.ECBlocks	Encapsulates a set of error-correction blocks in one symbol version.

Field Summary

Fields

Modifier and Type	Field	Description
private int[]	alignmentPatternCenters
private Version.ECBlocks[]	ecBlocks
private int	totalCodewords
private static int[]	VERSION_DECODE_INFO	See ISO 18004:2006 Annex D.
private int	versionNumber
private static Version[]	VERSIONS

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Version(int versionNumber, int[] alignmentPatternCenters, Version.ECBlocks ecBlocks1, Version.ECBlocks ecBlocks2, Version.ECBlocks ecBlocks3, Version.ECBlocks ecBlocks4)

Method Summary

Modifier and Type	Method	Description
(package private) BitMatrix	buildFunctionPattern()	See ISO 18004:2006 Annex E
private static Version[]	buildVersions()	See ISO 18004:2006 6.5.1 Table 9
(package private) static Version	decodeVersionInformation(int versionBits)
int[]	getAlignmentPatternCenters()
int	getDimensionForVersion()
Version.ECBlocks	getECBlocksForLevel(ErrorCorrectionLevel ecLevel)
static Version	getProvisionalVersionForDimension(int dimension)	Deduces version information purely from QR Code dimensions.
int	getTotalCodewords()
static Version	getVersionForNumber(int versionNumber)
int	getVersionNumber()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

VERSION_DECODE_INFO

private static final int[] VERSION_DECODE_INFO

See ISO 18004:2006 Annex D. Element i represents the raw version bits that specify version i + 7

VERSIONS

private static final Version[] VERSIONS

versionNumber

private final int versionNumber

alignmentPatternCenters

private final int[] alignmentPatternCenters

ecBlocks

private final Version.ECBlocks[] ecBlocks

totalCodewords

private final int totalCodewords

Constructor Detail

Version

private Version(int versionNumber,
                int[] alignmentPatternCenters,
                Version.ECBlocks ecBlocks1,
                Version.ECBlocks ecBlocks2,
                Version.ECBlocks ecBlocks3,
                Version.ECBlocks ecBlocks4)

Method Detail

getVersionNumber

public int getVersionNumber()

getAlignmentPatternCenters

public int[] getAlignmentPatternCenters()

getTotalCodewords

public int getTotalCodewords()

getDimensionForVersion

public int getDimensionForVersion()

getECBlocksForLevel

public Version.ECBlocks getECBlocksForLevel(ErrorCorrectionLevel ecLevel)

getProvisionalVersionForDimension

public static Version getProvisionalVersionForDimension(int dimension)

Deduces version information purely from QR Code dimensions.

Parameters:

dimension - dimension in modules

Returns:

Version for a QR Code of that dimension

Throws:

FormatException - if dimension is not 1 mod 4

getVersionForNumber

public static Version getVersionForNumber(int versionNumber)

decodeVersionInformation

static Version decodeVersionInformation(int versionBits)

buildFunctionPattern

BitMatrix buildFunctionPattern()

See ISO 18004:2006 Annex E

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

buildVersions

private static Version[] buildVersions()

See ISO 18004:2006 6.5.1 Table 9