WXP::LZWComp Class Reference

This class reads and writes GIF files. More...

#include "../include/LZWComp.h"

Public Member Functions
	LZWComp ()
	~LZWComp ()
int	init ()
	LZWComp (const char *filename, int access)
int	open (const char *filename, int access)
bool	isOpen ()
int	close ()
int	setInterlace (int val)
int	read (Image &image)
int	write (Image &image)
int	write (const char *file)

Detailed Description

This class reads and writes GIF files.

Author

Dan Vietor

Constructor & Destructor Documentation

LZWComp() [1/2]

LZWComp::LZWComp

(

)

Constructor. Initializes class values

References init().

~LZWComp()

LZWComp::~LZWComp

(

)

Destuctor.

References close().

LZWComp() [2/2]

LZWComp::LZWComp	(	const char *	filename,
		int	raccess
	)

Constructor. Opens the GIF file

Parameters

filename	The file to open
raccess	The access (FileAttr::READ, FileAttr::WRITE)

References init(), and open().

Member Function Documentation

close()

int LZWComp::close

(

)

Closes the GIF file

References WXP::File::close().

Referenced by ~LZWComp().

init()

int LZWComp::init

(

)

Initializes the class values

Referenced by LZWComp(), and LZWComp().

isOpen()

bool LZWComp::isOpen

(

)

Returns if file is open or not

Returns

True if opened

open()

int LZWComp::open	(	const char *	filename,
		int	raccess
	)

Opens the GIF file

Parameters

filename	The file to open
raccess	The access (FileAttr::READ, FileAttr::WRITE)

References WXP::File::isOpen(), WXP::File::open(), WXP::FileAttr::READ, and WXP::FileAttr::WRITE.

Referenced by LZWComp().

read()

int LZWComp::read

(

Image &

image

)

Reads in a GIF file and outputs data into an Image class

Return values

image

Output image class

References WXP::Image::allocColors(), WXP::Image::allocData(), WXP::DateTool::decode(), WXP::DomainTool::decode(), WXP::StrLib::equal(), WXP::Strings::equal(), WXP::Strings::getNum(), WXP::Strings::getString(), WXP::Image::init(), WXP::Wxp::outDebug(), WXP::File::read(), WXP::FileAttr::READ, WXP::Image::setBlu(), WXP::Image::setGrn(), WXP::Image::setPixel(), and WXP::Image::setRed().

setInterlace()

int LZWComp::setInterlace

(

int

val

)

Sets whether the output GIF file is interlaced or not

Parameters

val	1=interlaced, 0=not

write() [1/2]

int LZWComp::write

(

const char *

filename

)

Write GIF data from opened file to new file

Parameters

filename

Output filename

References WXP::File::close(), WXP::StrLib::equal(), WXP::File::isOpen(), WXP::File::open(), WXP::Wxp::outMessage(), WXP::Wxp::outWarning(), WXP::File::read(), and WXP::File::write().

write() [2/2]

int LZWComp::write

(

Image &

image

)

Writes an Image to a GIF file

Parameters

image

Image to write to file

References WXP::File::close(), WXP::StrLib::copy(), WXP::Image::getVal(), WXP::StrLib::length(), WXP::Const::MISS, WXP::Wxp::outDebug(), WXP::ImageMath::toIndex(), WXP::Domain::toString(), and WXP::File::write().

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

• LZWComp.h
• LZWComp.cc