EasyScriptCompressedDecoder

Implements EasyScriptDecoder

This class creates the live signature and coordinates that are generated by a compressed ScripTouch EasyScript device.

package

Application

Methods

Constructor, creates a new instance of EasyScriptCompressedDecoder class.

__construct(\com\scriptel\SignatureProtocolsignatureProtocol, intpos, \com\scriptel\EasyScriptEventListenerlistOfCoordinateReceiverListener) : mixed

Arguments

signatureProtocol

\com\scriptel\SignatureProtocol

Is the current used signature protocol

pos

int

the position of the first character of signature data in the entire stream. Follows the meta data.

listOfCoordinateReceiverListener

\com\scriptel\EasyScriptEventListener

Response

mixed

This method parses the compressed signature and decompressed it into coordinates

addValueToSignature(intbyteOfBitStream) : mixed

Arguments

byteOfBitStream

int

One byte of the incoming bit stream

Response

mixed

This method converts a decimal number into a 9-bit format string.

addValueToStream(intdecNumber) : mixed

Arguments

decNumber

int

Is an integer number represents the format (num1 * 23 + num2).

Response

mixed

This method reads characters from signature and puts them in 9-bit binary value It requires 2 or 3 characters and should only be given as many.

convertBodnarCharsToValue(stringsignature) : int
Throws
\com\scriptel\SignatureInvalidException

Arguments

signature

string

Represents the compressed signature.

Response

int

The converted values of the characters or -1 if it could not be done...a third character may be required.

Gets the current signature protocol.

getSigantureProtocol() : \com\scriptel\the

Response

\com\scriptel\the

signatureProtocol

This method parses the incoming signature in the batch mode. It converts the signature to single chars to handle it in the streaming mode.

parse(mixedstr) : mixed
Throws
\com\scriptel\SignatureInvalidException

Arguments

str

mixed

Response

mixed

This method parses the signature character by character to decode it.

parseSignature(mixedch) : mixed
Throws
\com\scriptel\SignatureInvalidException

Arguments

ch

mixed

Response

mixed

This method parses the binary tree to find the value corresponding to a binary string

searchBinaryTree(arraystream) : int

Arguments

stream

array

is a list of boolean values represents the binary stream.

Response

int

The value corresponding to the binary stream. If there weren't enough bits, returns -1, but remembers where it left off.

Constants

The maximum value for the compressed device.

MAXIMUM_COMPRESSED_VALUE

Contains the value that occurs when the difference between current x and previous x or current y and previous y in a coordinate is repeated.

REPEAT_HALF

Contains the value that indicates there is a new stroke.

NEW_STROKE_CODE

Contains the value that indicates that the sign of x is reversed.

REVERSE_X_CODE

Contains the value that indicates that the sign of y is reversed.

REVERSE_Y_CODE

Contains the value that indicates that the signs of x and y are reversed.

REVERSE_X_AND_Y_CODE

Contains the value that should be converted to the number 61 when it occurs.

REVERSE_X_CODE_SWAP

Contains the value that should be converted to the number 62 when it occurs.

REVERSE_Y_CODE_SWAP

Contains the value that should be converted to the number 63 when it occurs.

REVERSE_X_AND_Y_CODE_SWAP

Contains the value that should be converted to the number 59 when it occurs.

REPEAT_HALF_SWAP

Contains the value that should be converted to the number 60 when it occurs.

NEW_STROKE_CODE_SWAP

Contains the value indicates that the user has canceled the signature.

CANCEL_CODE

Properties

This object reads the binary tree.

tree : \com\scriptel\BinaryTreeReader
var

Type(s)

BinaryTreeReader

Default constructor, uses the STN protocol.

coordinateReceiverListeners : 
var

EasyScriptEventListener[].

This is a string that contains the characters of the incoming signature.

streamedSignature : string
var

Type(s)

string

Handles the binary stream that is used to find X and Y values in the binary tree.

binaryStream : bool[]
var

Type(s)

array<string|int, bool>

This is the used signature protocol.

sigantureProtocol : \com\scriptel\SignatureProtocol
var

Type(s)

SignatureProtocol

keyValues

keyboardDecoder : \com\scriptel\KeyBoardDecoder
var

Type(s)

\com\scriptel\KeyBoardDecoder

Flag indicates whether we are decoding x or y.

decodingX : bool
var

Type(s)

bool

Determines if the sign of X is currently plus or minus.

xSign : int
var

Type(s)

int

Determines if the sign of X is currently plus or minus.

ySign : int
var

Type(s)

int

Handles that last value of X.

previousX : int
var

Type(s)

int

Handles that last value of Y.

previousY : int
var

Type(s)

int

Contains the position of the character that is being processed.

charPosition : int
var

Type(s)

int

An instance of the binary tree.

nodePointer : \com\scriptel\BinaryTree
var

Type(s)

BinaryTree

Contains the value after decompression.

makeupValue : int
var

Type(s)

int

Contains the value of x.

x : int
var

Type(s)

int

Contains the value of y.

y : int
var

Type(s)

int

This is the calculate coordinate.

currentPoint : \com\scriptel\Coordinate
var

Type(s)

Coordinate

currently working on the terminator code

isMakeupCode : bool
var

Type(s)

bool

This is true when there is a new stroke.

isNewStroke : bool
var

Type(s)

bool