MFile Class Reference

overwrites QFile to only generate a file if its new version differs from an existing one, it creates a temporary file with ",new" added to the file name; additionally it records all file names that it touches; this is not a complete implementation - just enough for woc; it assumes that files are opened to be (re)created More...

#include <mfile.h>

Inheritance diagram for MFile:

Public Member Functions
	MFile (QString name, QObject *parent=0)
	creates a new file (tentatively) with the given name (temporarily with ",new" appended) More...
	MFile (QObject *parent=0)
	creates a file object More...
	~MFile ()
	implicitly closes the file More...
virtual void	close ()
	compares the old (if it exists) and new version of the file and overwrites the old one if there are differences More...
virtual bool	open (QIODevice::OpenMode m=QIODevice::WriteOnly)
	opens the file, WriteOnly is assumed as mode More...
QString	fileName () const
	returns the name of the file (without ",new") More...
void	setFileName (QString n)
	sets the file name for the file to be written; must be called before it is opened More...

Static Public Member Functions
static bool	touchedFile (QString)
	returns true if that file name has been touched yet More...

Private Attributes
bool	isopen
QString	name

Static Private Attributes
static QMap< QString, QStringList >	touched

Detailed Description

overwrites QFile to only generate a file if its new version differs from an existing one, it creates a temporary file with ",new" added to the file name; additionally it records all file names that it touches; this is not a complete implementation - just enough for woc; it assumes that files are opened to be (re)created

Constructor & Destructor Documentation

MFile::MFile	(	QString	name,
		QObject *	parent = 0
	)

creates a new file (tentatively) with the given name (temporarily with ",new" appended)

MFile::MFile

(

QObject *

parent = 0

)

creates a file object

MFile::~MFile

(

)

implicitly closes the file

Member Function Documentation

void MFile::close ( )

virtual

compares the old (if it exists) and new version of the file and overwrites the old one if there are differences

QString MFile::fileName ( ) const

inline

returns the name of the file (without ",new")

bool MFile::open ( QIODevice::OpenMode  m = QIODevice::WriteOnly )

virtual

opens the file, WriteOnly is assumed as mode

void MFile::setFileName

(

QString

n

)

sets the file name for the file to be written; must be called before it is opened

bool MFile::touchedFile ( QString  name )

static

returns true if that file name has been touched yet

Member Data Documentation

bool MFile::isopen

private

QString MFile::name

private

QMap< QString, QStringList > MFile::touched

staticprivate

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

• mfile.h
• mfile.cpp