QUrlInfo Class Reference
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QtNetwork

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The QUrlInfo class stores information about URLs. 更多...

类型

enum PermissionSpec { ReadOwner, WriteOwner, ExeOwner, ReadGroup, ..., ExeOther }

方法

__init__ ( self )
__init__ ( self , QUrlInfo ui )
__init__ ( self , QString name , int permissions , QString owner , QString group , int size , QDateTime lastModified , QDateTime lastRead , bool isDir , bool isFile , bool isSymLink , bool isWritable , bool isReadable , bool isExecutable )
__init__ ( self , QUrl url , int permissions , QString owner , QString group , int size , QDateTime lastModified , QDateTime lastRead , bool isDir , bool isFile , bool isSymLink , bool isWritable , bool isReadable , bool isExecutable )
QString group ( self )
bool isDir ( self )
bool isExecutable ( self )
bool isFile ( self )
bool isReadable ( self )
bool isSymLink ( self )
bool isValid ( self )
bool isWritable ( self )
QDateTime lastModified ( self )
QDateTime lastRead ( self )
QString name ( self )
QString owner ( self )
int permissions ( self )
setDir ( self , bool b )
setFile ( self , bool b )
setGroup ( self , QString s )
setLastModified ( self , QDateTime dt )
setLastRead ( self , QDateTime dt )
setName ( self , QString name )
setOwner ( self , QString s )
setPermissions ( self , int p )
setReadable ( self , bool b )
setSize ( self , int size )
setSymLink ( self , bool b )
setWritable ( self , bool b )
int size ( self )

Static Methods

bool equal (QUrlInfo i1 , QUrlInfo i2 , int sortBy )
bool greaterThan (QUrlInfo i1 , QUrlInfo i2 , int sortBy )
bool lessThan (QUrlInfo i1 , QUrlInfo i2 , int sortBy )

Special Methods

bool __eq__ ( self , QUrlInfo i )
bool __ne__ ( self , QUrlInfo i )

详细描述

The QUrlInfo class stores information about URLs.

The information about a URL that can be retrieved includes name (), permissions (), owner (), group (), size (), lastModified (), lastRead (), isDir (), isFile (), isSymLink (), isWritable (), isReadable () 和 isExecutable ().

You can create your own QUrlInfo objects passing in all the relevant information in the constructor, and you can modify a QUrlInfo; for each getter mentioned above there is an equivalent setter. Note that setting values does not affect the underlying resource that the QUrlInfo provides information about; for example if you call setWritable(true) on a read-only resource the only thing changed is the QUrlInfo object, not the resource.

类型文档编制

QUrlInfo.PermissionSpec

This enum is used by the permissions () function to report the permissions of a file.

常量	值	描述
`QUrlInfo.ReadOwner`	`00400`	The file is readable by the owner of the 文件。
`QUrlInfo.WriteOwner`	`00200`	The file is writable by the owner of the 文件。
`QUrlInfo.ExeOwner`	`00100`	The file is executable by the owner of the 文件。
`QUrlInfo.ReadGroup`	`00040`	The file is readable by the group.
`QUrlInfo.WriteGroup`	`00020`	The file is writable by the group.
`QUrlInfo.ExeGroup`	`00010`	The file is executable by the group.
`QUrlInfo.ReadOther`	`00004`	The file is readable by anyone.
`QUrlInfo.WriteOther`	`00002`	The file is writable by anyone.
`QUrlInfo.ExeOther`	`00001`	The file is executable by anyone.

方法文档编制

QUrlInfo.init ( self )

Constructs an invalid QUrlInfo object with default values.

另请参阅 isValid ().

QUrlInfo.init ( self , QUrlInfo ui )

Copy constructor, copies ui to this URL info object.

QUrlInfo.init ( self , QString name , int permissions , QString owner , QString group , int size , QDateTime lastModified , QDateTime lastRead , bool isDir , bool isFile , bool isSymLink , bool isWritable , bool isReadable , bool isExecutable )

构造 QUrlInfo object by specifying all the URL's information.

The information that is passed is the name , file permissions , owner and group and the file's size . Also passed is the lastModified date/time and the lastRead date/time. Flags are also passed, specifically, isDir , isFile , isSymLink , isWritable , isReadable and isExecutable .

QUrlInfo.init ( self , QUrl url , int permissions , QString owner , QString group , int size , QDateTime lastModified , QDateTime lastRead , bool isDir , bool isFile , bool isSymLink , bool isWritable , bool isReadable , bool isExecutable )

构造 QUrlInfo object by specifying all the URL's information.

The information that is passed is the url , file permissions , owner and group and the file's size . Also passed is the lastModified date/time and the lastRead date/time. Flags are also passed, specifically, isDir , isFile , isSymLink , isWritable , isReadable and isExecutable .

bool QUrlInfo.equal ( QUrlInfo i1 , QUrlInfo i2 , int sortBy )

返回 true 若 i1 equals to i2 ；否则返回 false. The objects are compared by the value, which is specified by sortBy . This must be one of QDir.Name , QDir.Time or QDir.Size .

bool QUrlInfo.greaterThan ( QUrlInfo i1 , QUrlInfo i2 , int sortBy )

返回 true 若 i1 大于 i2 ；否则 returns false. The objects are compared by the value, which is 指定通过 sortBy . This must be one of QDir.Name , QDir.Time or QDir.Size .

QString QUrlInfo.group ( self )

Returns the group of the URL.

另请参阅 setGroup () and isValid ().

bool QUrlInfo.isDir ( self )

Returns true if the URL is a directory; otherwise returns false.

另请参阅 isValid ().

bool QUrlInfo.isExecutable ( self )

Returns true if the URL is executable; otherwise returns false.

另请参阅 isValid ().

bool QUrlInfo.isFile ( self )

Returns true if the URL is a file; otherwise returns false.

另请参阅 isValid ().

bool QUrlInfo.isReadable ( self )

Returns true if the URL is readable; otherwise returns false.

另请参阅 isValid ().

bool QUrlInfo.isSymLink ( self )

Returns true if the URL is a symbolic link; otherwise returns false.

另请参阅 isValid ().

bool QUrlInfo.isValid ( self )

Returns true if the URL info is valid; otherwise returns false. Valid means that the QUrlInfo contains real information.

You should always check if the URL info is valid before relying on the values.

bool QUrlInfo.isWritable ( self )

Returns true if the URL is writable; otherwise returns false.

另请参阅 isValid ().

QDateTime QUrlInfo.lastModified ( self )

Returns the last modification date of the URL.

另请参阅 setLastModified () 和 isValid ().

QDateTime QUrlInfo.lastRead ( self )

Returns the date when the URL was last read.

另请参阅 setLastRead () 和 isValid ().

bool QUrlInfo.lessThan ( QUrlInfo i1 , QUrlInfo i2 , int sortBy )

返回 true 若 i1 is less than i2 ；否则 returns false. The objects are compared by the value, which is 指定通过 sortBy . This must be one of QDir.Name , QDir.Time or QDir.Size .

QString QUrlInfo.name ( self )

Returns the file name of the URL.

另请参阅 setName () and isValid ().

QString QUrlInfo.owner ( self )

Returns the owner of the URL.

另请参阅 setOwner () and isValid ().

int QUrlInfo.permissions ( self )

Returns the permissions of the URL. You can use the PermissionSpec flags to test for certain permissions.

另请参阅 setPermissions () 和 isValid ().

QUrlInfo.setDir ( self , bool b )

若 b is true then the URL is set to be a directory; if b is false then the URL is set not to be a directory (which normally means it is a file). (Note that a URL can refer to both a file and a directory even though most file systems do not support this.)