Package com.google.zxing.qrcode.encoder

Class MatrixUtil

java.lang.Object

com.google.zxing.qrcode.encoder.MatrixUtil

final class MatrixUtil
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
private static int[][]	POSITION_ADJUSTMENT_PATTERN
private static int[][]	POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE
private static int[][]	POSITION_DETECTION_PATTERN
private static int[][]	TYPE_INFO_COORDINATES
private static int	TYPE_INFO_MASK_PATTERN
private static int	TYPE_INFO_POLY
private static int	VERSION_INFO_POLY

Constructor Summary

Constructors

Modifier	Constructor	Description
private	MatrixUtil()

Method Summary

Modifier and Type	Method	Description
(package private) static void	buildMatrix(BitArray dataBits, ErrorCorrectionLevel ecLevel, Version version, int maskPattern, ByteMatrix matrix)
(package private) static int	calculateBCHCode(int value, int poly)
(package private) static void	clearMatrix(ByteMatrix matrix)
(package private) static void	embedBasicPatterns(Version version, ByteMatrix matrix)
private static void	embedDarkDotAtLeftBottomCorner(ByteMatrix matrix)
(package private) static void	embedDataBits(BitArray dataBits, int maskPattern, ByteMatrix matrix)
private static void	embedHorizontalSeparationPattern(int xStart, int yStart, ByteMatrix matrix)
private static void	embedPositionAdjustmentPattern(int xStart, int yStart, ByteMatrix matrix)
private static void	embedPositionDetectionPattern(int xStart, int yStart, ByteMatrix matrix)
private static void	embedPositionDetectionPatternsAndSeparators(ByteMatrix matrix)
private static void	embedTimingPatterns(ByteMatrix matrix)
(package private) static void	embedTypeInfo(ErrorCorrectionLevel ecLevel, int maskPattern, ByteMatrix matrix)
private static void	embedVerticalSeparationPattern(int xStart, int yStart, ByteMatrix matrix)
(package private) static int	findMSBSet(int value)
private static boolean	isEmpty(int value)
(package private) static void	makeTypeInfoBits(ErrorCorrectionLevel ecLevel, int maskPattern, BitArray bits)
(package private) static void	makeVersionInfoBits(Version version, BitArray bits)
private static void	maybeEmbedPositionAdjustmentPatterns(Version version, ByteMatrix matrix)
(package private) static void	maybeEmbedVersionInfo(Version version, ByteMatrix matrix)

Methods inherited from class java.lang.Object

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

Field Detail

POSITION_DETECTION_PATTERN

private static final int[][] POSITION_DETECTION_PATTERN

POSITION_ADJUSTMENT_PATTERN

private static final int[][] POSITION_ADJUSTMENT_PATTERN

POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE

private static final int[][] POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE

TYPE_INFO_COORDINATES

private static final int[][] TYPE_INFO_COORDINATES

VERSION_INFO_POLY

private static final int VERSION_INFO_POLY

See Also:

Constant Field Values

TYPE_INFO_POLY

private static final int TYPE_INFO_POLY

See Also:

Constant Field Values

TYPE_INFO_MASK_PATTERN

private static final int TYPE_INFO_MASK_PATTERN

See Also:

Constant Field Values

Constructor Detail

MatrixUtil

private MatrixUtil()

Method Detail

clearMatrix

static void clearMatrix(ByteMatrix matrix)

buildMatrix

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

Throws:

WriterException

embedBasicPatterns

static void embedBasicPatterns(Version version,
                               ByteMatrix matrix)
                        throws WriterException

Throws:

WriterException

embedTypeInfo

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

Throws:

WriterException

maybeEmbedVersionInfo

static void maybeEmbedVersionInfo(Version version,
                                  ByteMatrix matrix)
                           throws WriterException

Throws:

WriterException

embedDataBits

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

Throws:

WriterException

findMSBSet

static int findMSBSet(int value)

calculateBCHCode

static int calculateBCHCode(int value,
                            int poly)

makeTypeInfoBits

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

Throws:

WriterException

makeVersionInfoBits

static void makeVersionInfoBits(Version version,
                                BitArray bits)
                         throws WriterException

Throws:

WriterException

isEmpty

private static boolean isEmpty(int value)

embedTimingPatterns

private static void embedTimingPatterns(ByteMatrix matrix)

embedDarkDotAtLeftBottomCorner

private static void embedDarkDotAtLeftBottomCorner(ByteMatrix matrix)
                                            throws WriterException

Throws:

WriterException

embedHorizontalSeparationPattern

private static void embedHorizontalSeparationPattern(int xStart,
                                                     int yStart,
                                                     ByteMatrix matrix)
                                              throws WriterException

Throws:

WriterException

embedVerticalSeparationPattern

private static void embedVerticalSeparationPattern(int xStart,
                                                   int yStart,
                                                   ByteMatrix matrix)
                                            throws WriterException

Throws:

WriterException

embedPositionAdjustmentPattern

private static void embedPositionAdjustmentPattern(int xStart,
                                                   int yStart,
                                                   ByteMatrix matrix)

embedPositionDetectionPattern

private static void embedPositionDetectionPattern(int xStart,
                                                  int yStart,
                                                  ByteMatrix matrix)

embedPositionDetectionPatternsAndSeparators

private static void embedPositionDetectionPatternsAndSeparators(ByteMatrix matrix)
                                                         throws WriterException

Throws:

WriterException

maybeEmbedPositionAdjustmentPatterns

private static void maybeEmbedPositionAdjustmentPatterns(Version version,
                                                         ByteMatrix matrix)