EncodedData is a data manager used to read information bit per bit. More...

#include <encodeddata.h>

Public Member Functions
	EncodedData (Data::DataFormat=Data::F_UNDEF, bool=false)
	Create an empty object (without any data)
	EncodedData (const QByteArray, Data::DataFormat=Data::BYTES, bool=false)
	Create an object from existing bytes.
	EncodedData (const quint32, bool=false)
	Create an object from an integer.
	EncodedData (const QString &, Data::DataFormat=Data::UTF8, bool=true)
	Create an object from an String.
	EncodedData (QFile &, bool=true)
	Create an object from an existing file.
	~EncodedData ()
	Destructor: object cleaning.
void	initialize (unsigned short int=2)
	Initialize data for read (or append)
bool	hasNext ()
	Indicate if there is some next bit to read.
int	read ()
	Read next available bits.
void	append (int)
	Append value into current data.
Data::DataFormat	format ()
	Returns format of current data.
quint32	size () const
	Returns current encoded data size.
QByteArray	bytes ()
	Returns ByteArray representation of encoded data.
void	clear ()
	Remove data and cancel all current operation.
bool	isCompressed () const
	Returns current compression mode.
void	setCompressed (const bool, const bool=false)
	Change compression mode.
QString	toString (Data::DataFormat=Data::F_UNDEF)
	Convert data into string if possible.
quint32	toUInt32 ()
	Convert data into unsigned int (32bits)
QPointer< Data >	toData ()
	Retreive the current Data.
Static Public Member Functions
static unsigned short int	andOperator (unsigned short int)
	Compute value to use for "and" operator.
Private Member Functions
void	checkPartialData ()
	Use buffer to compute data if needed.
Private Attributes
QPointer< Data >	_data
	Readable representation of data.
QByteArray	_buffer
	Compiled representation of data.
unsigned short int	_andOperator
	And operator used for bit read.
unsigned short int	_swap
	Number of bit read at once.
unsigned int	_arrayCount
	Index of last char read on _buffer.
char	_car
	Current readed char.
unsigned short int	_bitCount
	Number of bit reads from current char.
bool	_compressed
	Indicate that data must be compressed or not.
bool	_partialData
	Indicate if current buffer contains partial data (ex: use of append)

Detailed Description

EncodedData is a data manager used to read information bit per bit.

Example:
EncodedData data("some text");
data.initialize(2);
data.read(); // returns the 2 first bits of the string

Definition at line 34 of file encodeddata.h.

Constructor & Destructor Documentation

SilentEyeFramework::EncodedData::EncodedData	(	Data::DataFormat	format = `Data::F_UNDEF`,
		bool	compress = `false`
	)

Create an empty object (without any data)

This constructor is used with append function and constitute a partial data.

Parameters:

format	Specify data format
compress	Specify whether the data should be compressed

Definition at line 29 of file encodeddata.cpp.

References _andOperator, _arrayCount, _bitCount, _buffer, _car, _data, _partialData, _swap, and andOperator().

SilentEyeFramework::EncodedData::EncodedData	(	const QByteArray	bytes,
		Data::DataFormat	format = `Data::BYTES`,
		bool	compress = `false`
	)

Create an object from existing bytes.

Parameters:

bytes	Uncompressed data
format	When format is set to F_UNDEF, constructor try to determine it from bytes
compress	Specify whether the data should be compressed

Definition at line 48 of file encodeddata.cpp.

References _andOperator, _arrayCount, _bitCount, _buffer, _car, _data, _partialData, _swap, andOperator(), and SilentEyeFramework::Data::F_UNDEF.