#include <wx/zipstrm.h>

Inheritance diagram for wxZipEntry:

Detailed Description

Holds the meta-data for an entry in a zip.

Field availability

When reading a zip from a stream that is seekable, wxZipInputStream::GetNextEntry() returns a fully populated wxZipEntry object except for wxZipEntry::GetLocalExtra(). wxZipEntry::GetLocalExtra() becomes available when the entry is opened, either by calling wxZipInputStream::OpenEntry() or by making an attempt to read the entry's data.

For zips on non-seekable streams, the following fields are always available when wxZipInputStream::GetNextEntry() returns:

The following fields are also usually available when GetNextEntry() returns, however, if the zip was also written to a non-seekable stream the zipper is permitted to store them after the entry's data. In that case they become available when the entry's data has been read to Eof(), or CloseEntry() has been called. (GetFlags() & wxZIP_SUMS_FOLLOW) != 0 indicates that one or more of these come after the data:

The following are stored at the end of the zip, and become available when the end of the zip has been reached, i.e. after GetNextEntry() returns nullptr and Eof() is true:

Library: wxBase

Category: Archive support, Streams

See also: Archive Formats, wxZipInputStream, wxZipOutputStream, wxZipNotifier

Public Member Functions
	wxZipEntry (const wxString &name=wxEmptyString, const wxDateTime &dt=Now(), wxFileOffset size=wxInvalidOffset)

	wxZipEntry (const wxZipEntry &entry)
	Copy constructor. More...

wxZipEntry *	Clone () const
	Make a copy of this entry. More...

wxFileOffset	GetCompressedSize () const
	The compressed size of this entry in bytes. More...

wxUint32	GetCrc () const
	CRC32 for this entry's data. More...

int	GetFlags () const
	Returns a combination of the bits flags in the enumeration `wxZipFlags`. More...

wxString	GetInternalName () const
	Returns the entry's filename in the internal format used within the archive. More...

bool	IsMadeByUnix () const
	Returns true if GetSystemMadeBy() is a flavour of unix. More...

wxZipEntry &	operator= (const wxZipEntry &entry)
	Assignment operator. More...


wxString	GetComment () const
	Gets and sets the short comment for this entry. More...

void	SetComment (const wxString &comment)
	Gets and sets the short comment for this entry. More...


wxUint32	GetExternalAttributes () const
	The low 8 bits are always the DOS/Windows file attributes for this entry. More...

void	SetExternalAttributes (wxUint32 attr)
	The low 8 bits are always the DOS/Windows file attributes for this entry. More...


const char *	GetExtra () const
	The extra field from the entry's central directory record. More...

size_t	GetExtraLen () const
	The extra field from the entry's central directory record. More...

void	SetExtra (const char *extra, size_t len)
	The extra field from the entry's central directory record. More...


const char *	GetLocalExtra () const
	The extra field from the entry's local record. More...

size_t	GetLocalExtraLen () const
	The extra field from the entry's local record. More...

void	SetLocalExtra (const char *extra, size_t len)
	The extra field from the entry's local record. More...


int	GetMethod () const
	The compression method. More...

void	SetMethod (int method)
	The compression method. More...


int	GetMode () const
	If IsMadeByUnix() is true then returns the unix permission bits stored in GetExternalAttributes(). More...

void	SetMode (int mode)
	Sets the DOS attributes in GetExternalAttributes() to be consistent with the mode given. More...


int	GetSystemMadeBy () const
	The originating file-system. More...

void	SetSystemMadeBy (int system)
	The originating file-system. More...


bool	IsText () const
	Indicates that this entry's data is text in an 8-bit encoding. More...

void	SetIsText (bool isText=true)
	Indicates that this entry's data is text in an 8-bit encoding. More...


void	SetNotifier (wxZipNotifier &notifier)
	Sets the notifier (see wxZipNotifier) for this entry. More...

void	UnsetNotifier ()
	Sets the notifier (see wxZipNotifier) for this entry. More...

Public Member Functions inherited from wxArchiveEntry
wxArchiveEntry *	Clone () const
	Returns a copy of this entry object. More...

virtual wxDateTime	GetDateTime () const =0
	Gets the entry's timestamp. More...

virtual void	SetDateTime (const wxDateTime &dt)=0
	Sets the entry's timestamp. More...

virtual wxString	GetName (wxPathFormat format=wxPATH_NATIVE) const =0
	Returns the entry's name, by default in the native format. More...

virtual void	SetName (const wxString &name, wxPathFormat format=wxPATH_NATIVE)=0
	Sets the entry's name. More...

virtual wxFileOffset	GetSize () const =0
	Returns the size of the entry's data in bytes. More...

virtual void	SetSize (wxFileOffset size)=0
	Sets the size of the entry's data in bytes. More...

virtual wxPathFormat	GetInternalFormat () const =0
	Returns the path format used internally within the archive to store filenames. More...

virtual wxFileOffset	GetOffset () const =0
	Returns a numeric value unique to the entry within the archive. More...

virtual bool	IsDir () const =0
	Returns true if this is a directory entry. More...

virtual void	SetIsDir (bool isDir=true)=0
	Marks this entry as a directory if isDir is true. More...

virtual bool	IsReadOnly () const =0
	Returns true if the entry is a read-only file. More...

virtual void	SetIsReadOnly (bool isReadOnly=true)=0
	Sets this entry as a read-only file. More...

void	SetNotifier (wxArchiveNotifier &notifier)
	Sets the notifier (see wxArchiveNotifier) for this entry. More...

Public Member Functions inherited from wxObject
	wxObject ()
	Default ctor; initializes to nullptr the internal reference data. More...

	wxObject (const wxObject &other)
	Copy ctor. More...

virtual	~wxObject ()
	Destructor. More...

virtual wxClassInfo *	GetClassInfo () const
	This virtual function is redefined for every class that requires run-time type information, when using the wxDECLARE_CLASS macro (or similar). More...

wxObjectRefData *	GetRefData () const
	Returns the wxObject::m_refData pointer, i.e. the data referenced by this object. More...

bool	IsKindOf (const wxClassInfo *info) const
	Determines whether this class is a subclass of (or the same class as) the given class. More...

bool	IsSameAs (const wxObject &obj) const
	Returns true if this object has the same data pointer as obj. More...

void	Ref (const wxObject &clone)
	Makes this object refer to the data in clone. More...

void	SetRefData (wxObjectRefData *data)
	Sets the wxObject::m_refData pointer. More...

void	UnRef ()
	Decrements the reference count in the associated data, and if it is zero, deletes the data. More...

void	UnShare ()
	This is the same of AllocExclusive() but this method is public. More...

void	operator delete (void *buf)
	The delete operator is defined for debugging versions of the library only, when the identifier `__WXDEBUG__` is defined. More...

void *	operator new (size_t size, const wxString &filename=nullptr, int lineNum=0)
	The new operator is defined for debugging versions of the library only, when the identifier `__WXDEBUG__` is defined. More...

Static Public Member Functions
static wxString	GetInternalName (const wxString &name, wxPathFormat format=wxPATH_NATIVE, bool *pIsDir=nullptr)
	A static member that translates a filename into the internal format used within the archive. More...

Additional Inherited Members
Protected Member Functions inherited from wxObject
void	AllocExclusive ()
	Ensure that this object's data is not shared with any other object. More...

virtual wxObjectRefData *	CreateRefData () const
	Creates a new instance of the wxObjectRefData-derived class specific to this object and returns it. More...

virtual wxObjectRefData *	CloneRefData (const wxObjectRefData *data) const
	Creates a new instance of the wxObjectRefData-derived class specific to this object and initializes it copying data. More...

Protected Attributes inherited from wxObject
wxObjectRefData *	m_refData
	Pointer to an object which is the object's reference-counted data. More...

Constructor & Destructor Documentation

◆ wxZipEntry() [1/2]

wxZipEntry::wxZipEntry	(	const wxString &	name = `wxEmptyString`,
		const wxDateTime &	dt = `Now()`,
		wxFileOffset	size = `wxInvalidOffset`
	)

◆ wxZipEntry() [2/2]

wxZipEntry::wxZipEntry ( const wxZipEntry & entry )

Copy constructor.

Member Function Documentation

◆ Clone()

wxZipEntry* wxZipEntry::Clone ( ) const

Make a copy of this entry.

◆ GetComment()

wxString wxZipEntry::GetComment ( ) const

Gets and sets the short comment for this entry.

◆ GetCompressedSize()

wxFileOffset wxZipEntry::GetCompressedSize ( ) const

The compressed size of this entry in bytes.

◆ GetCrc()

wxUint32 wxZipEntry::GetCrc ( ) const

CRC32 for this entry's data.

◆ GetExternalAttributes()

wxUint32 wxZipEntry::GetExternalAttributes ( ) const

The low 8 bits are always the DOS/Windows file attributes for this entry.

The values of these attributes are given in the enumeration wxZipAttributes.

The remaining bits can store platform specific permission bits or attributes, and their meaning depends on the value of SetSystemMadeBy(). If IsMadeByUnix() is true then the high 16 bits are unix mode bits.

The following other accessors access these bits:

◆ GetExtra()

const char* wxZipEntry::GetExtra ( ) const

The extra field from the entry's central directory record.

The extra field is used to store platform or application specific data. See Pkware's document 'appnote.txt' for information on its format.

◆ GetExtraLen()

size_t wxZipEntry::GetExtraLen ( ) const

The extra field from the entry's central directory record.

The extra field is used to store platform or application specific data. See Pkware's document 'appnote.txt' for information on its format.

◆ GetFlags()

int wxZipEntry::GetFlags ( ) const

Returns a combination of the bits flags in the enumeration wxZipFlags.

◆ GetInternalName() [1/2]

wxString wxZipEntry::GetInternalName ( ) const

virtual

Returns the entry's filename in the internal format used within the archive.

The name can include directory components, i.e. it can be a full path.

The names of directory entries are returned without any trailing path separator. This gives a canonical name that can be used in comparisons.

Implements wxArchiveEntry.

◆ GetInternalName() [2/2]

static wxString wxZipEntry::GetInternalName	(	const wxString &	name,
		wxPathFormat	format = `wxPATH_NATIVE`,
		bool *	pIsDir = `nullptr`
	)

static

A static member that translates a filename into the internal format used within the archive.

If the third parameter is provided, the bool pointed to is set to indicate whether the name looks like a directory name (i.e. has a trailing path separator).

See also: Looking Up an Archive Entry by Name

◆ GetLocalExtra()

const char* wxZipEntry::GetLocalExtra ( ) const

The extra field from the entry's local record.

The extra field is used to store platform or application specific data. See Pkware's document 'appnote.txt' for information on its format.

◆ GetLocalExtraLen()

size_t wxZipEntry::GetLocalExtraLen ( ) const

The extra field from the entry's local record.

The extra field is used to store platform or application specific data. See Pkware's document 'appnote.txt' for information on its format.

◆ GetMethod()

int wxZipEntry::GetMethod ( ) const

The compression method.

The enumeration wxZipMethod lists the possible values.

The default constructor sets this to wxZIP_METHOD_DEFAULT, which allows wxZipOutputStream to choose the method when writing the entry.

◆ GetMode()

int wxZipEntry::GetMode ( ) const

If IsMadeByUnix() is true then returns the unix permission bits stored in GetExternalAttributes().

Otherwise synthesises them from the DOS attributes.

◆ GetSystemMadeBy()

int wxZipEntry::GetSystemMadeBy ( ) const

The originating file-system.

The default constructor sets this to wxZIP_SYSTEM_MSDOS. Set it to wxZIP_SYSTEM_UNIX in order to be able to store unix permissions using SetMode().

◆ IsMadeByUnix()

bool wxZipEntry::IsMadeByUnix ( ) const

Returns true if GetSystemMadeBy() is a flavour of unix.

◆ IsText()

bool wxZipEntry::IsText ( ) const

Indicates that this entry's data is text in an 8-bit encoding.

◆ operator=()

wxZipEntry& wxZipEntry::operator= ( const wxZipEntry & entry )

Assignment operator.

◆ SetComment()

void wxZipEntry::SetComment ( const wxString & comment )

Gets and sets the short comment for this entry.

◆ SetExternalAttributes()

void wxZipEntry::SetExternalAttributes ( wxUint32 attr )

The low 8 bits are always the DOS/Windows file attributes for this entry.

The values of these attributes are given in the enumeration wxZipAttributes.

The remaining bits can store platform specific permission bits or attributes, and their meaning depends on the value of SetSystemMadeBy(). If IsMadeByUnix() is true then the high 16 bits are unix mode bits.

The following other accessors access these bits:

◆ SetExtra()

void wxZipEntry::SetExtra	(	const char *	extra,
		size_t	len
	)

The extra field from the entry's central directory record.

The extra field is used to store platform or application specific data. See Pkware's document 'appnote.txt' for information on its format.

◆ SetIsText()

void wxZipEntry::SetIsText ( bool isText = true )

Indicates that this entry's data is text in an 8-bit encoding.

◆ SetLocalExtra()

void wxZipEntry::SetLocalExtra	(	const char *	extra,
		size_t	len
	)

The extra field from the entry's local record.

The extra field is used to store platform or application specific data. See Pkware's document 'appnote.txt' for information on its format.

◆ SetMethod()

void wxZipEntry::SetMethod ( int method )

The compression method.

The enumeration wxZipMethod lists the possible values.

The default constructor sets this to wxZIP_METHOD_DEFAULT, which allows wxZipOutputStream to choose the method when writing the entry.

◆ SetMode()

void wxZipEntry::SetMode ( int mode )

Sets the DOS attributes in GetExternalAttributes() to be consistent with the mode given.

If IsMadeByUnix() is true then also stores mode in GetExternalAttributes(). Note that the default constructor sets GetSystemMadeBy() to wxZIP_SYSTEM_MSDOS by default. So to be able to store unix permissions when creating zips, call SetSystemMadeBy(wxZIP_SYSTEM_UNIX).

◆ SetNotifier()

void wxZipEntry::SetNotifier ( wxZipNotifier & notifier )

Sets the notifier (see wxZipNotifier) for this entry.

Whenever the wxZipInputStream updates this entry, it will then invoke the associated notifier's wxZipNotifier::OnEntryUpdated() method.

Setting a notifier is not usually necessary. It is used to handle certain cases when modifying an zip in a pipeline (i.e. between non-seekable streams).

See also: Archives on Non-Seekable Streams, wxZipNotifier

◆ SetSystemMadeBy()

void wxZipEntry::SetSystemMadeBy ( int system )

The originating file-system.

The default constructor sets this to wxZIP_SYSTEM_MSDOS. Set it to wxZIP_SYSTEM_UNIX in order to be able to store unix permissions using SetMode().

◆ UnsetNotifier()

void wxZipEntry::UnsetNotifier ( )

virtual

Sets the notifier (see wxZipNotifier) for this entry.

Whenever the wxZipInputStream updates this entry, it will then invoke the associated notifier's wxZipNotifier::OnEntryUpdated() method.

Setting a notifier is not usually necessary. It is used to handle certain cases when modifying an zip in a pipeline (i.e. between non-seekable streams).

See also: Archives on Non-Seekable Streams, wxZipNotifier

Reimplemented from wxArchiveEntry.

Detailed Description

Field availability

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ wxZipEntry() [1/2]

◆ wxZipEntry() [2/2]

Member Function Documentation

◆ Clone()

◆ GetComment()

◆ GetCompressedSize()

◆ GetCrc()

◆ GetExternalAttributes()

◆ GetExtra()

◆ GetExtraLen()

◆ GetFlags()

◆ GetInternalName() [1/2]

◆ GetInternalName() [2/2]

◆ GetLocalExtra()

◆ GetLocalExtraLen()

◆ GetMethod()

◆ GetMode()

◆ GetSystemMadeBy()

◆ IsMadeByUnix()

◆ IsText()

◆ operator=()

◆ SetComment()

◆ SetExternalAttributes()

◆ SetExtra()

◆ SetIsText()

◆ SetLocalExtra()

◆ SetMethod()

◆ SetMode()

◆ SetNotifier()

◆ SetSystemMadeBy()

◆ UnsetNotifier()