com.google.zxing.qrcode.encoder.Encoder

public final class Encoder
extends Object

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

Field Summary

Fields

Modifier and Type Field Description

(package private) static String DEFAULT_BYTE_MODE_ENCODING

Method Summary

Modifier and Type	Method	Description
`(package private) static void`	`append8BitBytes(String content, BitArray bits, String encoding)`
`(package private) static void`	`appendAlphanumericBytes(CharSequence content, BitArray bits)`
`(package private) static void`	`appendBytes(String content, Mode mode, BitArray bits, String encoding)`	Append "bytes" in "mode" mode (encoding) into "bits".
`(package private) static void`	`appendKanjiBytes(String content, BitArray bits)`
`(package private) static void`	`appendLengthInfo(int numLetters, Version version, Mode mode, BitArray bits)`	Append length info.
`(package private) static void`	`appendModeInfo(Mode mode, BitArray bits)`	Append mode info.
`(package private) static void`	`appendNumericBytes(CharSequence content, BitArray bits)`
`static Mode`	`chooseMode(String content)`
`static QRCode`	`encode(String content, ErrorCorrectionLevel ecLevel)`
`static QRCode`	`encode(String content, ErrorCorrectionLevel ecLevel, Map<EncodeHintType,?> hints)`
`(package private) static byte[]`	`generateECBytes(byte[] dataBytes, int numEcBytesInBlock)`
`(package private) static int`	`getAlphanumericCode(int code)`
`(package private) static void`	`getNumDataBytesAndNumECBytesForBlockID(int numTotalBytes, int numDataBytes, int numRSBlocks, int blockID, int[] numDataBytesInBlock, int[] numECBytesInBlock)`	Get number of data bytes and number of error correction bytes for block id "blockID".
`(package private) static BitArray`	`interleaveWithECBytes(BitArray bits, int numTotalBytes, int numDataBytes, int numRSBlocks)`	Interleave "bits" with corresponding error correction bytes.
`(package private) static void`	`terminateBits(int numDataBytes, BitArray bits)`	Terminate bits as described in 8.4.8 and 8.4.9 of JISX0510:2004 (p.24).

Methods inherited from class java.lang.Object

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

Field Details
- DEFAULT_BYTE_MODE_ENCODING
  
  static final String DEFAULT_BYTE_MODE_ENCODING
  
  See Also:
  
  Constant Field Values
Method Details
- encode
  
  public static QRCode encode(String content, ErrorCorrectionLevel ecLevel) throws WriterException
  
  Parameters:
  
  content - text to encode
  
  ecLevel - error correction level to use
  
  Returns:
  
  QRCode representing the encoded QR code
  
  Throws:
  
  WriterException - if encoding can't succeed, because of for example invalid content or configuration
- encode
  
  public static QRCode encode(String content, ErrorCorrectionLevel ecLevel, Map<EncodeHintType,?> hints) throws WriterException
  
  Throws:
  
  WriterException
- getAlphanumericCode
  
  static int getAlphanumericCode(int code)
  
  Returns:
  
  the code point of the table used in alphanumeric mode or -1 if there is no corresponding code in the table.
- chooseMode
  
  public static Mode chooseMode(String content)
- terminateBits
  
  static void terminateBits(int numDataBytes, BitArray bits) throws WriterException
  
  Terminate bits as described in 8.4.8 and 8.4.9 of JISX0510:2004 (p.24).
  
  Throws:
  
  WriterException
- getNumDataBytesAndNumECBytesForBlockID
  
  static void getNumDataBytesAndNumECBytesForBlockID(int numTotalBytes, int numDataBytes, int numRSBlocks, int blockID, int[] numDataBytesInBlock, int[] numECBytesInBlock) throws WriterException
  
  Get number of data bytes and number of error correction bytes for block id "blockID". Store the result in "numDataBytesInBlock", and "numECBytesInBlock". See table 12 in 8.5.1 of JISX0510:2004 (p.30)
  
  Throws:
  
  WriterException
- interleaveWithECBytes
  
  static BitArray interleaveWithECBytes(BitArray bits, int numTotalBytes, int numDataBytes, int numRSBlocks) throws WriterException
  
  Interleave "bits" with corresponding error correction bytes. On success, store the result in "result". The interleave rule is complicated. See 8.6 of JISX0510:2004 (p.37) for details.
  
  Throws:
  
  WriterException
- generateECBytes
  
  static byte[] generateECBytes(byte[] dataBytes, int numEcBytesInBlock)
- appendModeInfo
  
  static void appendModeInfo(Mode mode, BitArray bits)
  
  Append mode info. On success, store the result in "bits".
- appendLengthInfo
  
  static void appendLengthInfo(int numLetters, Version version, Mode mode, BitArray bits) throws WriterException
  
  Append length info. On success, store the result in "bits".
  
  Throws:
  
  WriterException
- appendBytes
  
  static void appendBytes(String content, Mode mode, BitArray bits, String encoding) throws WriterException
  
  Append "bytes" in "mode" mode (encoding) into "bits". On success, store the result in "bits".
  
  Throws:
  
  WriterException
- appendNumericBytes
  
  static void appendNumericBytes(CharSequence content, BitArray bits)
- appendAlphanumericBytes
  
  static void appendAlphanumericBytes(CharSequence content, BitArray bits) throws WriterException
  
  Throws:
  
  WriterException
- append8BitBytes
  
  static void append8BitBytes(String content, BitArray bits, String encoding) throws WriterException
  
  Throws:
  
  WriterException
- appendKanjiBytes
  
  static void appendKanjiBytes(String content, BitArray bits) throws WriterException
  
  Throws:
  
  WriterException

Class Encoder

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Details

Method Details