QFSFileEngine Class Reference
^{^{[

QtCore

module]}}

The QFSFileEngine class implements Qt's default file engine. 更多...

方法

__init__ ( self )
__init__ ( self , QString file )
bool caseSensitive ( self )
bool close ( self )
bool copy ( self , QString newName )
QStringList entryList ( self , QDir.Filters filters , QStringList filterNames )
QAbstractFileEngine.FileFlags fileFlags ( self , QAbstractFileEngine.FileFlags type )
QString fileName ( self , QAbstractFileEngine.FileName file )
QDateTime fileTime ( self , QAbstractFileEngine.FileTime time )
bool flush ( self )
int handle ( self )
bool isRelativePath ( self )
bool isSequential ( self )
bool link ( self , QString newName )
bool mkdir ( self , QString dirName , bool createParentDirectories )
bool open ( self , QIODevice.OpenMode openMode )
bool open ( self , QIODevice.OpenMode openMode , int fd , QFile.FileHandleFlags handleFlags )
bool open ( self , QIODevice.OpenMode flags , int fd )
QString owner ( self , QAbstractFileEngine.FileOwner)
int ownerId ( self , QAbstractFileEngine.FileOwner)
int pos ( self )
str read ( self , int maxlen )
str readLine ( self , int maxlen )
bool remove ( self )
bool rename ( self , QString newName )
bool rmdir ( self , QString dirName , bool recurseParentDirectories )
bool seek ( self , int)
setFileName ( self , QString file )
bool setPermissions ( self , int perms )
bool setSize ( self , int size )
int size ( self )
int write ( self , str data )

Static Methods

QString currentPath (QString fileName = QString())
list-of-QFileInfo drives ()
QString homePath ()
QString rootPath ()
bool setCurrentPath (QString path )
QString tempPath ()

详细描述

The QFSFileEngine class implements Qt's default file engine.

This class is part of the file engine framework in Qt. If you only want to access files or directories, use QFile , QFileInfo or QDir 代替。

QFSFileEngine is the default file engine for accessing regular files. It is provided for convenience; by subclassing this class, you can alter its behavior slightly, without having to write a complete QAbstractFileEngine subclass. To install your custom file engine, you must also subclass QAbstractFileEngineHandler and create an instance of your handler.

It can also be useful to create a QFSFileEngine object directly if you need to use the local file system inside QAbstractFileEngine.create (), in order to avoid recursion (as higher-level classes tend to call QAbstractFileEngine.create ()).

方法文档编制

QFSFileEngine.init ( self )

构造 QFSFileEngine .

QFSFileEngine.init ( self , QString file )

构造 QFSFileEngine for the file name file .

bool QFSFileEngine.caseSensitive ( self )

重实现自 QAbstractFileEngine.caseSensitive ().

Returns true for Windows, false for Unix.

bool QFSFileEngine.close ( self )

重实现自 QAbstractFileEngine.close ().

bool QFSFileEngine.copy ( self , QString newName )

重实现自 QAbstractFileEngine.copy ().

For windows, copy the file to file copyName .

Not implemented for Unix.

QString QFSFileEngine.currentPath (QString fileName = QString())

For Unix, returns the current working directory for the file engine.

For Windows, returns the canonicalized form of the current path used by the file engine for the drive specified by fileName . On Windows, each drive has its own current directory, so a different path is returned for file names that include different drive names (e.g. A: or C:).

另请参阅 setCurrentPath ().

list-of-QFileInfo QFSFileEngine.drives ()

For Windows, returns the list of drives in the file system as a list of QFileInfo objects. On unix, Mac OS X and Windows CE, only the root path is returned. On Windows, this function returns all drives (A:, C:, D:, etc.).

For Unix, the list contains just the root path "/".

QStringList QFSFileEngine.entryList ( self , QDir.Filters filters , QStringList filterNames )

QAbstractFileEngine.FileFlags QFSFileEngine.fileFlags ( self , QAbstractFileEngine.FileFlags type )

重实现自 QAbstractFileEngine.fileFlags ().

QString QFSFileEngine.fileName ( self , QAbstractFileEngine.FileName file )

重实现自 QAbstractFileEngine.fileName ().

另请参阅 setFileName ().

QString QFSFileEngine.homePath ()

Returns the home path of the current user.

另请参阅 rootPath ().

bool QFSFileEngine.isRelativePath ( self )

重实现自 QAbstractFileEngine.isRelativePath ().

bool QFSFileEngine.isSequential ( self )

重实现自 QAbstractFileEngine.isSequential ().

bool QFSFileEngine.link ( self , QString newName )

重实现自 QAbstractFileEngine.link ().

Creates a link from the file currently specified by fileName () 到 newName . What a link is depends on the underlying filesystem (be it a shortcut on Windows or a symbolic link on Unix). Returns true if successful; otherwise returns false.