dimeInput Class Reference

The dimeInput class offers transparent file I/O for DXF and DXB. More...

#include <dime/Input.h>

Public Member Functions
	dimeInput ()
	~dimeInput ()
bool	setFileHandle (FILE *fp)
bool	setFile (const char *const filename)
bool	setFilePointer (const int fd)
bool	eof () const
void	setCallback (int(*cb)(float, void *), void *cbdata)
float	relativePosition ()
void	putBackGroupCode (const int32 code)
bool	readGroupCode (int32 &code)
bool	readInt8 (int8 &val)
bool	readInt16 (int16 &val)
bool	readInt32 (int32 &val)
bool	readFloat (float &val)
bool	readDouble (dxfdouble &val)
const char *	readString ()
const char *	readStringNoSkip ()
class dimeModel *	getModel ()
class dimeMemHandler *	getMemHandler ()
int	getFilePosition () const
bool	isBinary () const
int	getVersion () const
bool	isAborted () const

Friends
class	dimeModel

Detailed Description

The dimeInput class offers transparent file I/O for DXF and DXB.

Constructor & Destructor Documentation

dimeInput::dimeInput

(

)

Constructor.

dimeInput::~dimeInput

(

)

Destructor.

Member Function Documentation

bool dimeInput::eof

(

)

const

Returns true if end of file is encountered.

int dimeInput::getFilePosition

(

)

const

For ASCII files, it returns the current line number. For binary files the file position is returned.

Referenced by dimeModel::read().

dimeMemHandler * dimeInput::getMemHandler

(

)

Returns the memory handler used in this model.

References dimeModel::getMemHandler().

Referenced by dimeBlocksSection::read(), dimeTablesSection::read(), dimeTable::read(), dimeStringRecord::read(), dimeInsert::read(), dimeModel::read(), dimeRecordHolder::read(), dimeBlock::read(), dimePolyline::read(), dimeEntity::readEntities(), and dimeRecord::readRecord().

dimeModel * dimeInput::getModel

(

)

Returns the model for this file.

Referenced by dimeLayerTable::read(), dimeInsert::read(), dimeBlock::read(), and dimeEntity::read().

int dimeInput::getVersion

(

)

const

Returns the version of this file (10, 12, 13 or 14).

bool dimeInput::isAborted

(

)

const

This method returns wether file input was aborted or not.

bool dimeInput::isBinary

(

)

const

Returns true if this is a binary (DXB) file.

void dimeInput::putBackGroupCode

(

const int32

code

)

This function is needed when a loader snoops for future group codes. It is possible to put back a single group code so that the next time dimeInput::readGroupCode() is called, the putback value will be returned.

Referenced by dimeRecordHolder::read().

bool dimeInput::readDouble

(

dxfdouble &

val

)

Reads a dxfdouble precision floating point number from the file.

Referenced by dimeDoubleRecord::read(), readFloat(), and dimeRecord::readRecordData().

bool dimeInput::readFloat

(

float &

val

)

Reads a single precision floating point number from the file.

References readDouble().

Referenced by dimeFloatRecord::read(), and dimeRecord::readRecordData().

bool dimeInput::readGroupCode

(

int32 &

code

)

Reads a group code from the file. In binary files, group codes are represented as a single byte, with the exception of extended data which has 255 as the first byte, and then the actual group code following as a 16-bit integer.

References readInt16(), readInt32(), readString(), and relativePosition().

Referenced by dimeBlocksSection::read(), dimeTablesSection::read(), dimeTable::read(), dimeModel::read(), dimeRecordHolder::read(), dimePolyline::read(), dimeEntity::readEntities(), and dimeRecord::readRecord().

bool dimeInput::readInt16

(

int16 &

val

)

Reads a 16 bit integer from the file.

Referenced by dimeTable::read(), dimeInt16Record::read(), readGroupCode(), and dimeRecord::readRecordData().

bool dimeInput::readInt32

(

int32 &

val

)

Reads a 32 bit integer from the file.

Referenced by dimeInt32Record::read(), readGroupCode(), and dimeRecord::readRecordData().

bool dimeInput::readInt8

(

int8 &

val

)

Reads an 8 bit integer from the file.

Referenced by dimeInt8Record::read(), and dimeRecord::readRecordData().

const char * dimeInput::readString

(

)

Returns a null-terminated string read from the file. The string is valid only until the next read operation, so you'd better copy it somewhere if you need it.

References dimeModel::registerHandle().

Referenced by dimeBlocksSection::read(), dimeTablesSection::read(), dimeTable::read(), dimeStringRecord::read(), dimeModel::read(), dimePolyline::read(), dimeEntity::readEntities(), readGroupCode(), and dimeRecord::readRecordData().

const char * dimeInput::readStringNoSkip

(

)

Special version of readString() that does not skip leading blanks. This is used for reading TEXT primary values, group_code = 1.

References dimeModel::registerHandle().

Referenced by dimeRecord::readRecordData().

float dimeInput::relativePosition

(

)

Returns the relative file position. 0.0 means beginning of file, 1.0 is at end of file.

Referenced by readGroupCode().

void dimeInput::setCallback	(	int(*)(float, void *)	cb,
		void *	cbdata
	)

This method sets a progress callback that will be called with a float in the range between 0 and 1, and void * cbdata as arguments.

bool dimeInput::setFile

(

const char *const

filename

)

Opens the file 'filename' for reading. True is returned if the file is opened correctly. File will be closed in destructor.

References setFilePointer().

bool dimeInput::setFileHandle

(

FILE *

fp

)

Sets the input data to the stream fp. must be a valid file/stream, and will not be closed in the destuctor. No progress information will be avilable during loading if this method is used.

bool dimeInput::setFilePointer

(

const int

newfd

)

Sets the file pointer for this instance. newfd is a file opened with the unistd open() function.

Referenced by setFile().

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The documentation for this class was generated from the following files:

• Input.h
• Input.cpp