内容

• 公共函数
• 静态公共成员
• 详细描述

Q3UriDrag Class

The Q3UriDrag class provides a drag object for a list of URI references. 更多...

头：	#include <Q3UriDrag>
继承：	Q3StoredDrag

• 所有成员列表，包括继承成员
• 过时成员

公共函数

	Q3UriDrag (const Q3StrList & uris , QWidget * dragSource = 0, const char * name = 0)
	Q3UriDrag (QWidget * dragSource = 0, const char * name = 0)
	~Q3UriDrag ()
void	setFileNames (const QStringList & filenames )
void	setFileNames (const QString & name )
void	setFilenames (const QString & name )
void	setUnicodeUris (const QStringList & list )
virtual void	setUris (const QList<QByteArray> & list )

• 3 公共函数继承自 Q3StoredDrag
• 9 公共函数继承自 Q3DragObject
• 29 公共函数继承自 QObject
• 3 公共函数继承自 QMimeSource

静态公共成员

bool	canDecode (const QMimeSource * source )
bool	decode (const QMimeSource * source , Q3StrList & list )
bool	decodeLocalFiles (const QMimeSource * source , QStringList & list )
bool	decodeToUnicodeUris (const QMimeSource * source , QStringList & list )
QByteArray	localFileToUri (const QString & filename )
QByteArray	unicodeUriToUri (const QString & string )
QString	uriToLocalFile (const char * string )
QString	uriToUnicodeUri (const char * string )

• 1 静态公共成员继承自 Q3DragObject
• 7 静态公共成员继承自 QObject

额外继承成员

• 1 特性继承自 QObject
• 1 公共槽继承自 QObject
• 1 信号继承自 QObject
• 1 保护函数继承自 Q3DragObject
• 8 保护函数继承自 QObject

详细描述

The Q3UriDrag class provides a drag object for a list of URI references.

URIs are a useful way to refer to files that may be distributed across multiple machines. A URI will often refer to a file on a machine local to both the drag source and the drop target, so the URI can be equivalent to passing a file name but is more extensible.

Use URIs in Unicode form so that the user can comfortably edit and view them. For use in HTTP or other protocols, use the correctly escaped ASCII form.

You can convert a list of file names to file URIs using setFileNames (), or into human-readable form with setUnicodeUris ().

Static functions are provided to convert between filenames and URIs; e.g. uriToLocalFile () 和 localFileToUri (). Static functions are also provided to convert URIs to and from human-readable form; e.g. uriToUnicodeUri () 和 unicodeUriToUri (). You can also decode URIs from a MIME source into a list with decodeLocalFiles () 和 decodeToUnicodeUris ().

成员函数文档编制

Q3UriDrag:: Q3UriDrag (const Q3StrList & uris , QWidget * dragSource = 0, const char * name = 0)

Constructs an object to drag the list of uris 。 dragSource and name 被传递给 Q3StoredDrag 构造函数。

Note that URIs are always in escaped UTF8 encoding.

Q3UriDrag:: Q3UriDrag ( QWidget * dragSource = 0, const char * name = 0)

Constructs an object to drag with the given name . You must call setUris () before you start the drag (). Both the dragSource 和 name 被传递给 Q3StoredDrag 构造函数。

Q3UriDrag:: ~Q3UriDrag ()

Destroys the URI drag object.

[static] bool Q3UriDrag:: canDecode (const QMimeSource * source )

返回 true 若 decode () can decode the MIME source ；否则返回 false。

[static] bool Q3UriDrag:: decode (const QMimeSource * source , Q3StrList & list )

Decodes URIs from the MIME source , placing the result in the list . The list is cleared before any items are inserted.

Returns true if the MIME source contained a valid list of URIs; otherwise returns false.

[static] bool Q3UriDrag:: decodeLocalFiles (const QMimeSource * source , QStringList & list )

Decodes URIs from the MIME source , converting them to local filenames where possible, and places them in the list (which is first cleared).

Returns true if the MIME source contained a valid list of URIs; otherwise returns false. The list will be empty if no URIs referred to local files.

[static] bool Q3UriDrag:: decodeToUnicodeUris (const QMimeSource * source , QStringList & list )

Decodes URIs from the MIME source , converting them to Unicode URIs (only useful for displaying to humans), and places them in the list (which is first cleared).

Returns true if the MIME source contained a valid list of URIs; otherwise returns false.

[static] QByteArray Q3UriDrag:: localFileToUri (const QString & filename )

Returns the URI equivalent to the absolute local filename .

另请参阅 uriToLocalFile ().

void Q3UriDrag:: setFileNames (const QStringList & filenames )

Sets the URIs to be local file URIs equivalent to the filenames .

另请参阅 localFileToUri () 和 setUris ().

void Q3UriDrag:: setFileNames (const QString & name )

如同 setFileNames ( QStringList ( name )).

void Q3UriDrag:: setFilenames (const QString & name )

如同 setFileNames ( QStringList ( name )).

void Q3UriDrag:: setUnicodeUris (const QStringList & list )

Sets the URIs in the list to be Unicode URIs (only useful for displaying to humans).

另请参阅 localFileToUri () 和 setUris ().

[虚拟] void Q3UriDrag:: setUris (const QList < QByteArray > & list )

改变 list of URIs to be dragged.

Note that URIs are always in escaped UTF8 encoding.

[static] QByteArray Q3UriDrag:: unicodeUriToUri (const QString & string )

Returns the URI equivalent of the Unicode URI given in the string (only useful for displaying to humans).

另请参阅 uriToLocalFile ().

[static] QString Q3UriDrag:: uriToLocalFile (const char * string )

Returns the name of a local file equivalent to the URI given in the string , or an empty string if it does not refer to a local file.

Note that URIs are always in escaped UTF8 encoding.

另请参阅 localFileToUri ().

[static] QString Q3UriDrag:: uriToUnicodeUri (const char * string )

Returns the Unicode URI (only useful for displaying to humans) equivalent of the URI given in the string .

Note that URIs are always in escaped UTF8 encoding.

另请参阅 localFileToUri ().