Class MatrixUtil

java.lang.Object

com.itextpdf.text.pdf.qrcode.MatrixUtil

public final class MatrixUtil
extends Object

Since:

5.0.2

Author:

satorux@google.com (Satoru Takabayashi) - creator, dswitkin@google.com (Daniel Switkin) - ported from C++

Method Summary

Modifier and Type	Method	Description
static void	buildMatrix(BitVector dataBits, ErrorCorrectionLevel ecLevel, int version, int maskPattern, ByteMatrix matrix)
static int	calculateBCHCode(int value, int poly)
static void	clearMatrix(ByteMatrix matrix)
static void	embedBasicPatterns(int version, ByteMatrix matrix)
static void	embedDataBits(BitVector dataBits, int maskPattern, ByteMatrix matrix)
static void	embedTypeInfo(ErrorCorrectionLevel ecLevel, int maskPattern, ByteMatrix matrix)
static int	findMSBSet(int value)
static void	makeTypeInfoBits(ErrorCorrectionLevel ecLevel, int maskPattern, BitVector bits)
static void	makeVersionInfoBits(int version, BitVector bits)
static void	maybeEmbedVersionInfo(int version, ByteMatrix matrix)

Methods inherited from class Object

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

Method Details

clearMatrix

public static void clearMatrix(ByteMatrix matrix)

buildMatrix

public static void buildMatrix(BitVector dataBits,
 ErrorCorrectionLevel ecLevel,
 int version,
 int maskPattern,
 ByteMatrix matrix)
                        throws WriterException

Throws:

WriterException

embedBasicPatterns

public static void embedBasicPatterns(int version,
 ByteMatrix matrix)
                               throws WriterException

Throws:

WriterException

embedTypeInfo

public static void embedTypeInfo(ErrorCorrectionLevel ecLevel,
 int maskPattern,
 ByteMatrix matrix)
                          throws WriterException

Throws:

WriterException

maybeEmbedVersionInfo

public static void maybeEmbedVersionInfo(int version,
 ByteMatrix matrix)
                                  throws WriterException

Throws:

WriterException

embedDataBits

public static void embedDataBits(BitVector dataBits,
 int maskPattern,
 ByteMatrix matrix)
                          throws WriterException

Throws:

WriterException

findMSBSet

public static int findMSBSet(int value)

calculateBCHCode

public static int calculateBCHCode(int value,
 int poly)

makeTypeInfoBits

public static void makeTypeInfoBits(ErrorCorrectionLevel ecLevel,
 int maskPattern,
 BitVector bits)
                             throws WriterException

Throws:

WriterException

makeVersionInfoBits

public static void makeVersionInfoBits(int version,
 BitVector bits)
                                throws WriterException

Throws:

WriterException