// Name: zipstrm.h
// Purpose: interface of wxZipNotifier
// Author: wxWidgets team
-// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+
+
+/// Compression Method, only 0 (store) and 8 (deflate) are supported here
+enum wxZipMethod
+{
+ wxZIP_METHOD_STORE,
+ wxZIP_METHOD_SHRINK,
+ wxZIP_METHOD_REDUCE1,
+ wxZIP_METHOD_REDUCE2,
+ wxZIP_METHOD_REDUCE3,
+ wxZIP_METHOD_REDUCE4,
+ wxZIP_METHOD_IMPLODE,
+ wxZIP_METHOD_TOKENIZE,
+ wxZIP_METHOD_DEFLATE,
+ wxZIP_METHOD_DEFLATE64,
+ wxZIP_METHOD_BZIP2 = 12,
+ wxZIP_METHOD_DEFAULT = 0xffff
+};
+
+/// Originating File-System.
+///
+/// These are Pkware's values. Note that Info-zip disagree on some of them,
+/// most notably NTFS.
+enum wxZipSystem
+{
+ wxZIP_SYSTEM_MSDOS,
+ wxZIP_SYSTEM_AMIGA,
+ wxZIP_SYSTEM_OPENVMS,
+ wxZIP_SYSTEM_UNIX,
+ wxZIP_SYSTEM_VM_CMS,
+ wxZIP_SYSTEM_ATARI_ST,
+ wxZIP_SYSTEM_OS2_HPFS,
+ wxZIP_SYSTEM_MACINTOSH,
+ wxZIP_SYSTEM_Z_SYSTEM,
+ wxZIP_SYSTEM_CPM,
+ wxZIP_SYSTEM_WINDOWS_NTFS,
+ wxZIP_SYSTEM_MVS,
+ wxZIP_SYSTEM_VSE,
+ wxZIP_SYSTEM_ACORN_RISC,
+ wxZIP_SYSTEM_VFAT,
+ wxZIP_SYSTEM_ALTERNATE_MVS,
+ wxZIP_SYSTEM_BEOS,
+ wxZIP_SYSTEM_TANDEM,
+ wxZIP_SYSTEM_OS_400
+};
+
+/// Dos/Win file attributes
+enum wxZipAttributes
+{
+ wxZIP_A_RDONLY = 0x01,
+ wxZIP_A_HIDDEN = 0x02,
+ wxZIP_A_SYSTEM = 0x04,
+ wxZIP_A_SUBDIR = 0x10,
+ wxZIP_A_ARCH = 0x20,
+
+ wxZIP_A_MASK = 0x37
+};
+
+/// Values for the flags field in the zip headers
+enum wxZipFlags
+{
+ wxZIP_ENCRYPTED = 0x0001,
+ wxZIP_DEFLATE_NORMAL = 0x0000, // normal compression
+ wxZIP_DEFLATE_EXTRA = 0x0002, // extra compression
+ wxZIP_DEFLATE_FAST = 0x0004, // fast compression
+ wxZIP_DEFLATE_SUPERFAST = 0x0006, // superfast compression
+ wxZIP_DEFLATE_MASK = 0x0006,
+ wxZIP_SUMS_FOLLOW = 0x0008, // crc and sizes come after the data
+ wxZIP_ENHANCED = 0x0010,
+ wxZIP_PATCH = 0x0020,
+ wxZIP_STRONG_ENC = 0x0040,
+ wxZIP_UNUSED = 0x0F80,
+ wxZIP_RESERVED = 0xF000
+};
+
+
/**
@class wxZipNotifier
- If you need to know when a wxZipInputStream
- updates a wxZipEntry,
+ If you need to know when a wxZipInputStream updates a wxZipEntry,
you can create a notifier by deriving from this abstract base class,
- overriding wxZipNotifier::OnEntryUpdated.
+ overriding wxZipNotifier::OnEntryUpdated().
+
An instance of your notifier class can then be assigned to wxZipEntry
- objects, using wxZipEntry::SetNotifier.
+ objects, using wxZipEntry::SetNotifier().
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 '@ref overview_wxarcnoseek "Archives on non-seekable streams"'.
+ See @ref overview_archive_noseek.
@library{wxbase}
- @category{FIXME}
+ @category{archive,streams}
- @see @ref overview_wxarcnoseek "Archives on non-seekable streams", wxZipEntry,
- wxZipInputStream, wxZipOutputStream
+ @see @ref overview_archive_noseek, wxZipEntry, wxZipInputStream, wxZipOutputStream
*/
class wxZipNotifier
{
public:
/**
- Override this to receive notifications when
- an wxZipEntry object changes.
+ Override this to receive notifications when an wxZipEntry object changes.
*/
- void OnEntryUpdated(wxZipEntry& entry);
+ virtual void OnEntryUpdated(wxZipEntry& entry) = 0;
};
Holds the meta-data for an entry in a zip.
+ @section zipentry_avail Field availability
+
+ When reading a zip from a stream that is seekable, wxZipEntry::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 wxZipEntry::GetNextEntry() returns:
+ - wxZipEntry::GetDateTime
+ - wxZipEntry::GetInternalFormat
+ - wxZipEntry::GetInternalName
+ - wxZipEntry::GetFlags
+ - wxZipEntry::GetLocalExtra
+ - wxZipEntry::GetMethod
+ - wxZipEntry::GetName
+ - wxZipEntry::GetOffset
+ - wxZipEntry::IsDir
+
+ 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:
+ - wxZipEntry::GetCompressedSize
+ - wxZipEntry::GetCrc
+ - wxZipEntry::GetSize
+
+ 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 @NULL
+ and Eof() is true:
+ - wxZipEntry::GetComment
+ - wxZipEntry::GetExternalAttributes
+ - wxZipEntry::GetExtra
+ - wxZipEntry::GetMode
+ - wxZipEntry::GetSystemMadeBy
+ - wxZipEntry::IsReadOnly
+ - wxZipEntry::IsMadeByUnix
+ - wxZipEntry::IsText
+
@library{wxbase}
- @category{FIXME}
+ @category{archive,streams}
- @see @ref overview_wxarc "Archive formats such as zip", wxZipInputStream,
- wxZipOutputStream, wxZipNotifier
+ @see @ref overview_archive, wxZipInputStream, wxZipOutputStream, wxZipNotifier
*/
class wxZipEntry : public wxArchiveEntry
{
public:
- //@{
+ wxZipEntry(const wxString& name = wxEmptyString,
+ const wxDateTime& dt = Now(),
+ wxFileOffset size = wxInvalidOffset);
+
/**
Copy constructor.
*/
- wxZipEntry(const wxString& name = wxEmptyString);
wxZipEntry(const wxZipEntry& entry);
- //@}
/**
Make a copy of this entry.
//@{
/**
- A short comment for this entry.
+ Gets and sets the short comment for this entry.
*/
- wxString GetComment();
- const void SetComment(const wxString& comment);
+ wxString GetComment() const;
+ void SetComment(const wxString& comment);
//@}
//@{
/**
The low 8 bits are always the DOS/Windows file attributes for this entry.
- The values of these attributes are given in the
- enumeration @c wxZipAttributes.
- The remaining bits can store platform specific permission bits or
- attributes, and their meaning depends on the value
- of @ref systemmadeby() SetSystemMadeBy.
- If IsMadeByUnix() is @true then the
- high 16 bits are unix mode bits.
- The following other accessors access these bits:
- @ref wxArchiveEntry::isreadonly IsReadOnly/SetIsReadOnly
+ The values of these attributes are given in the enumeration ::wxZipAttributes.
- @ref wxArchiveEntry::isdir IsDir/SetIsDir
+ 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.
- @ref mode() Get/SetMode
+ The following other accessors access these bits:
+ - IsReadOnly() / SetIsReadOnly()
+ - IsDir() / SetIsDir()
+ - GetMode() / SetMode()
*/
- wxUint32 GetExternalAttributes();
- const void SetExternalAttributes(wxUint32 attr);
+ wxUint32 GetExternalAttributes() const;
+ void SetExternalAttributes(wxUint32 attr);
//@}
//@{
/**
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.
*/
- const char* GetExtra();
- const size_t GetExtraLen();
- const void SetExtra(const char* extra, size_t len);
+ const char* GetExtra() const;
+ size_t GetExtraLen() const;
+ void SetExtra(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.
*/
- const char* GetLocalExtra();
- const size_t GetLocalExtraLen();
- const void SetLocalExtra(const char* extra, size_t len);
+ const char* GetLocalExtra() const;
+ size_t GetLocalExtraLen() const;
+ void SetLocalExtra(const char* extra, size_t len);
//@}
//@{
/**
- The compression method. The enumeration @c 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.
+ The compression method.
+ The enumeration ::wxZipMethod lists the possible values.
+
+ The default constructor sets this to @c wxZIP_METHOD_DEFAULT,
+ which allows wxZipOutputStream to choose the method when writing the entry.
*/
- int GetMethod();
- const void SetMethod(int method);
+ int GetMethod() const;
+ void SetMethod(int method);
//@}
//@{
/**
- Sets the DOS attributes
- in @ref externalattributes() GetExternalAttributes
- to be consistent with the @c mode given.
- If IsMadeByUnix() is @true then also
- stores @c mode in GetExternalAttributes().
- Note that the default constructor
- sets @ref systemmadeby() GetSystemMadeBy to
- wxZIP_SYSTEM_MSDOS by default. So to be able to store unix
+ If IsMadeByUnix() is true then returns the unix permission bits stored
+ in GetExternalAttributes(). Otherwise synthesises them from the DOS attributes.
+ */
+ int GetMode() const;
+
+ /**
+ Sets the DOS attributes in GetExternalAttributes() to be consistent with
+ the @a mode given.
+
+ If IsMadeByUnix() is @true then also stores @a mode in GetExternalAttributes().
+ Note that the default constructor sets GetSystemMadeBy() to
+ @c wxZIP_SYSTEM_MSDOS by default. So to be able to store unix
permissions when creating zips, call SetSystemMadeBy(wxZIP_SYSTEM_UNIX).
*/
- int GetMode();
- const void SetMode(int mode);
+ void SetMode(int mode);
//@}
//@{
/**
- 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 @ref mode() SetMode.
+ The originating file-system.
+
+ The default constructor sets this to @c wxZIP_SYSTEM_MSDOS.
+ Set it to @c wxZIP_SYSTEM_UNIX in order to be able to store unix
+ permissions using SetMode().
*/
- int GetSystemMadeBy();
- const void SetSystemMadeBy(int system);
+ int GetSystemMadeBy() const;
+ void SetSystemMadeBy(int system);
//@}
/**
The compressed size of this entry in bytes.
*/
- off_t GetCompressedSize() const;
+ wxFileOffset GetCompressedSize() const;
/**
CRC32 for this entry's data.
to is set to indicate whether the name looks like a directory name
(i.e. has a trailing path separator).
- @see @ref overview_wxarcbyname "Looking up an archive entry by name"
+ @see @ref overview_archive_byname
*/
- wxString GetInternalName();
- const wxString GetInternalName(const wxString& name,
- wxPathFormat format = wxPATH_NATIVE,
- bool* pIsDir = NULL);
+ wxString GetInternalName(const wxString& name,
+ wxPathFormat format = wxPATH_NATIVE,
+ bool* pIsDir = NULL);
+ /**
+ 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.
+ */
+ wxString GetInternalName() const;
//@}
/**
- Returns @true if @ref systemmadeby() GetSystemMadeBy
- is a flavour of unix.
+ Returns @true if GetSystemMadeBy() is a flavour of unix.
*/
bool IsMadeByUnix() const;
/**
Indicates that this entry's data is text in an 8-bit encoding.
*/
- bool IsText();
- const void SetIsText(bool isText = true);
+ bool IsText() const;
+ void SetIsText(bool isText = true);
//@}
//@{
/**
- Sets the notifier() for this entry.
- Whenever the wxZipInputStream updates
- this entry, it will then invoke the associated
- notifier's wxZipNotifier::OnEntryUpdated
- method.
+ 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 @ref overview_wxarcnoseek "Archives on non-seekable streams", wxZipNotifier
+ @see @ref overview_archive_noseek, wxZipNotifier
*/
void SetNotifier(wxZipNotifier& notifier);
void UnsetNotifier();
/**
Assignment operator.
*/
- wxZipEntry& operator operator=(const wxZipEntry& entry);
+ wxZipEntry& operator=(const wxZipEntry& entry);
};
-
/**
@class wxZipInputStream
Input stream for reading zip files.
- wxZipInputStream::GetNextEntry returns an
- wxZipEntry object containing the meta-data
- for the next entry in the zip (and gives away ownership). Reading from
- the wxZipInputStream then returns the entry's data. Eof() becomes @true
- after an attempt has been made to read past the end of the entry's data.
+ wxZipInputStream::GetNextEntry() returns a wxZipEntry object containing the
+ meta-data for the next entry in the zip (and gives away ownership).
+ Reading from the wxZipInputStream then returns the entry's data.
+ Eof() becomes @true after an attempt has been made to read past the end of
+ the entry's data.
When there are no more entries, GetNextEntry() returns @NULL and sets Eof().
Note that in general zip entries are not seekable, and
- wxZipInputStream::SeekI() always returns wxInvalidOffset.
+ wxZipInputStream::SeekI() always returns ::wxInvalidOffset.
@library{wxbase}
- @category{streams}
+ @category{archive,streams}
- @see @ref overview_wxarc "Archive formats such as zip", wxZipEntry,
- wxZipOutputStream
+ @see @ref overview_archive, wxZipEntry, wxZipOutputStream
*/
class wxZipInputStream : public wxArchiveInputStream
{
public:
+
//@{
/**
- Compatibility constructor (requires WXWIN_COMPATIBILITY_2_6).
- When this constructor is used, an emulation of seeking is
- switched on for compatibility with previous versions. Note however,
- that it is deprecated.
+ Constructor. In a Unicode build the second parameter @a conv is used to
+ translate the filename and comment fields into Unicode.
+ It has no effect on the stream's data.
+ If the parent stream is passed as a pointer then the new filter stream
+ takes ownership of it. If it is passed by reference then it does not.
*/
wxZipInputStream(wxInputStream& stream,
wxMBConv& conv = wxConvLocal);
wxZipInputStream(wxInputStream* stream,
wxMBConv& conv = wxConvLocal);
+ //@}
+
+ /**
+ @deprecated
+ Compatibility constructor (requires WXWIN_COMPATIBILITY_2_6).
+ When this constructor is used, an emulation of seeking is
+ switched on for compatibility with previous versions. Note however,
+ that it is deprecated.
+ */
wxZipInputStream(const wxString& archive,
const wxString& file);
- //@}
/**
- Closes the current entry. On a non-seekable stream reads to the end of
- the current entry first.
+ Closes the current entry.
+ On a non-seekable stream reads to the end of the current entry first.
*/
bool CloseEntry();
/**
Returns the zip comment.
+
This is stored at the end of the zip, therefore when reading a zip
- from a non-seekable stream, it returns the empty string until the
- end of the zip has been reached, i.e. when GetNextEntry() returns
- @NULL.
+ from a non-seekable stream, it returns the empty string until the end
+ of the zip has been reached, i.e. when GetNextEntry() returns @NULL.
*/
wxString GetComment();
/**
Closes the current entry if one is open, then reads the meta-data for
- the next entry and returns it in a wxZipEntry
- object, giving away ownership. The stream is then open and can be read.
+ the next entry and returns it in a wxZipEntry object, giving away ownership.
+ The stream is then open and can be read.
*/
wxZipEntry* GetNextEntry();
/**
Closes the current entry if one is open, then opens the entry specified
by the @a entry object.
+
@a entry should be from the same zip file, and the zip should
be on a seekable stream.
+
+ @see overview_archive_byname
*/
bool OpenEntry(wxZipEntry& entry);
};
/**
@class wxZipClassFactory
- Class factory for the zip archive format. See the base class
- for details.
+ Class factory for the zip archive format.
+ See the base class for details.
@library{wxbase}
- @category{FIXME}
+ @category{archive,streams}
- @see @ref overview_wxarc "Archive formats such as zip", @ref
- overview_wxarcgeneric "Generic archive programming", wxZipEntry, wxZipInputStream, wxZipOutputStream
+ @see @ref overview_archive,
+ @ref overview_archive_generic,
+ wxZipEntry, wxZipInputStream, wxZipOutputStream
*/
class wxZipClassFactory : public wxArchiveClassFactory
{
Output stream for writing zip files.
- wxZipOutputStream::PutNextEntry is used to create
- a new entry in the output zip, then the entry's data is written to the
- wxZipOutputStream. Another call to PutNextEntry() closes the current
+ wxZipOutputStream::PutNextEntry() is used to create a new entry in the
+ output zip, then the entry's data is written to the wxZipOutputStream.
+ Another call to wxZipOutputStream::PutNextEntry() closes the current
entry and begins the next.
@library{wxbase}
- @category{streams}
+ @category{archive,streams}
- @see @ref overview_wxarc "Archive formats such as zip", wxZipEntry,
- wxZipInputStream
+ @see @ref overview_archive, wxZipEntry, wxZipInputStream
*/
class wxZipOutputStream : public wxArchiveOutputStream
{
public:
//@{
/**
- Constructor. @c level is the compression level to use.
+ Constructor.
+
+ @a level is the compression level to use.
It can be a value between 0 and 9 or -1 to use the default value
which currently is equivalent to 6.
+
If the parent stream is passed as a pointer then the new filter stream
takes ownership of it. If it is passed by reference then it does not.
- In a Unicode build the third parameter @c conv is used to translate
- the filename and comment fields to an 8-bit encoding. It has no effect on the
- stream's data.
+ In a Unicode build the third parameter @a conv is used to translate
+ the filename and comment fields to an 8-bit encoding.
+ It has no effect on the stream's data.
*/
wxZipOutputStream(wxOutputStream& stream, int level = -1,
wxMBConv& conv = wxConvLocal);
//@}
/**
- The destructor calls Close() to finish
- writing the zip if it has not been called already.
+ The destructor calls Close() to finish writing the zip if it has
+ not been called already.
*/
- ~wxZipOutputStream();
+ virtual ~wxZipOutputStream();
/**
Finishes writing the zip, returning @true if successful.
bool Close();
/**
- Close the current entry. It is called implicitly whenever another new
- entry is created with CopyEntry()
- or PutNextEntry(), or
- when the zip is closed.
+ Close the current entry.
+ It is called implicitly whenever another new entry is created with CopyEntry()
+ or PutNextEntry(), or when the zip is closed.
*/
bool CloseEntry();
bool CopyArchiveMetaData(wxZipInputStream& inputStream);
/**
- Takes ownership of @c entry and uses it to create a new entry
- in the zip. @c entry is then opened in @c inputStream and its contents
+ Takes ownership of @a entry and uses it to create a new entry
+ in the zip. @a entry is then opened in @a inputStream and its contents
copied to this stream.
+
CopyEntry() is much more efficient than transferring the data using
Read() and Write() since it will copy them without decompressing and
recompressing them.
- For zips on seekable streams, @c entry must be from the same zip file
- as @c stream. For non-seekable streams, @c entry must also be the
- last thing read from @c inputStream.
+
+ For zips on seekable streams, @a entry must be from the same zip file
+ as @a inputStream. For non-seekable streams, @a entry must also be the
+ last thing read from @a inputStream.
*/
bool CopyEntry(wxZipEntry* entry, wxZipInputStream& inputStream);
//@{
/**
Set the compression level that will be used the next time an entry is
- created. It can be a value between 0 and 9 or -1 to use the default value
+ created.
+
+ It can be a value between 0 and 9 or -1 to use the default value
which currently is equivalent to 6.
*/
- int GetLevel();
- const void SetLevel(int level);
+ int GetLevel() const;
+ void SetLevel(int level);
//@}
/**
- )
- Create a new directory entry
- (see wxArchiveEntry::IsDir)
- with the given name and timestamp.
- PutNextEntry() can
- also be used to create directory entries, by supplying a name with
- a trailing path separator.
+ Create a new directory entry (see wxArchiveEntry::IsDir) with the given
+ name and timestamp.
+
+ PutNextEntry() can also be used to create directory entries, by supplying
+ a name with a trailing path separator.
*/
- bool PutNextDirEntry(const wxString& name);
+ bool PutNextDirEntry(const wxString& name,
+ const wxDateTime& dt = wxDateTime::Now());
//@{
/**
- , @b off_t@e size = wxInvalidOffset)
- Create a new entry with the given name, timestamp and size.
+ Takes ownership of @a entry and uses it to create a new entry in the zip.
*/
bool PutNextEntry(wxZipEntry* entry);
- bool PutNextEntry(const wxString& name);
+
+ /**
+ Create a new entry with the given name, timestamp and size.
+ */
+ bool PutNextEntry(const wxString& name,
+ const wxDateTime& dt = wxDateTime::Now(),
+ wxFileOffset size = wxInvalidOffset);
//@}
/**
- Sets a comment for the zip as a whole. It is written at the end of the
- zip.
+ Sets a comment for the zip as a whole.
+ It is written at the end of the zip.
*/
void SetComment(const wxString& comment);
};
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