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revised archive header; changed overview_arc to overview_archive which reads better; modified the @category alias to point to the group pages and to spit out the @ingroup command

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@52468 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Francesco Montorsi
2008-03-13 16:30:38 +00:00
parent 8aef90e872
commit 4cbfec1580
6 changed files with 273 additions and 181 deletions
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3
docs/doxygen/Doxyfile.inc
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@@ -64,7 +64,8 @@ ALIASES += beginExtraStyleTable="<div><span class='styles'>Extra styles:</span>"
ALIASES += endExtraStyleTable="</div>"
# aliases for additional wx-specific infos
ALIASES += category{1}="<div><span class='category'>Category:</span>&nbsp;&nbsp;<span class='category_text'>\ref page_class_cat_\1</span></div>"
ALIASES += category{1}="\ingroup group_class_\1 \n<div><span class='category'>Category:</span>&nbsp;&nbsp;<span class='category_text'>\ref group_class_\1</span></div>"
ALIASES += category{2}="\ingroup group_class_\1 group_class_\2 \n<div><span class='category'>Category:</span>&nbsp;&nbsp;<span class='category_text'>\ref group_class_\1, \ref group_class_\2</span></div>"
ALIASES += library{1}="<div><span class='lib'>Library:</span>&nbsp;&nbsp;<span class='lib_text'>\ref page_libs_\1</span></div>"
ALIASES += nolibrary="<div><span class='lib'>Library:</span>&nbsp;&nbsp;<span class='lib_text'>None; this class implementation is entirely header-based.</span></div>"
ALIASES += stdobjects="<span class='stdobj'>Predefined objects:</span>"

15
docs/doxygen/groups/class_archive.h Normal file
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@@ -0,0 +1,15 @@
/////////////////////////////////////////////////////////////////////////////
// Name: class_archive.h
// Purpose: wxArchive* classes group docs
// Author: wxWidgets team
// RCS-ID: $Id$
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
/**
@defgroup group_class_archive Archive support
@ingroup group_class
*/

9
docs/doxygen/mainpages/cat_classes.h
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@@ -50,6 +50,7 @@
@li @ref page_class_cat_help
@li @ref page_class_cat_media
@li @ref page_class_cat_gl
@li @ref page_class_cat_archive
@li @ref page_class_cat_misc
</td></tr>
@endTable
@@ -785,6 +786,14 @@ Related Overviews: @ref overview_xrc
@section page_class_cat_archive Archive
@li wxArchiveInputStream
@li wxArchiveOutputStream
@li wxArchiveEntry
@section page_class_cat_misc Miscellaneous
@li wxCaret: A caret (cursor) object

2
docs/doxygen/mainpages/topics.h
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@@ -62,7 +62,7 @@ The following is a basic categorization of them:
@li @subpage overview_config
@li @subpage overview_fs
@li @subpage overview_resyntax
@li @subpage overview_arc
@li @subpage overview_archive
@li @subpage overview_ipc
@section page_topics_drawing Drawing Related Classes

36
docs/doxygen/overviews/archive.h
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@@ -8,7 +8,7 @@
/**
@page overview_arc Archive Formats
@page overview_archive Archive Formats
The archive classes handle archive formats such as zip, tar, rar and cab.
Currently wxZip and wxTar classes are included.
@@ -21,29 +21,29 @@ example):
@li wxZipEntry: Holds meta-data for an entry (e.g. filename, timestamp, etc.)
There are also abstract wxArchive classes that can be used to write code that
can handle any of the archive types, see @ref overview_arc_generic.
can handle any of the archive types, see @ref overview_archive_generic.
Also see wxFileSystem for a higher level interface that can handle archive
files in a generic way.
The classes are designed to handle archives on both seekable streams such as
disk files, or non-seekable streams such as pipes and sockets (see
@ref overview_arc_noseek).
@ref overview_archive_noseek).
See also wxFileSystem.
@li @ref overview_arc_create
@li @ref overview_arc_extract
@li @ref overview_arc_modify
@li @ref overview_arc_byname
@li @ref overview_arc_generic
@li @ref overview_arc_noseek
@li @ref overview_archive_create
@li @ref overview_archive_extract
@li @ref overview_archive_modify
@li @ref overview_archive_byname
@li @ref overview_archive_generic
@li @ref overview_archive_noseek
<hr>
@section overview_arc_create Creating an Archive
@section overview_archive_create Creating an Archive
Call wxArchiveOutputStream::PutNextEntry() to create each new entry in the
archive, then write the entry's data. Another call to PutNextEntry() closes the
@@ -66,7 +66,7 @@ The name of each entry can be a full path, which makes it possible to store
entries in subdirectories.
@section overview_arc_extract Extracting an Archive
@section overview_archive_extract Extracting an Archive
wxArchiveInputStream::GetNextEntry() returns a pointer to entry object
containing the meta-data for the next entry in the archive (and gives away
@@ -93,7 +93,7 @@ while (entry.reset(zip.GetNextEntry()), entry.get() != NULL)
@section overview_arc_modify Modifying an Archive
@section overview_archive_modify Modifying an Archive
To modify an existing archive, write a new copy of the archive to a new file,
making any necessary changes along the way and transferring any unchanged
@@ -139,7 +139,7 @@ bool success = inzip.Eof() && outzip.Close() && out.Commit();
@section overview_arc_byname Looking Up an Archive Entry by Name
@section overview_archive_byname Looking Up an Archive Entry by Name
Also see wxFileSystem for a higher level interface that is more convenient for
accessing archive entries by name.
@@ -230,7 +230,7 @@ if ((it = cat.find(wxZipEntry::GetInternalName(local2))) != cat.end())
@section overview_arc_generic Generic Archive Programming
@section overview_archive_generic Generic Archive Programming
Also see wxFileSystem for a higher level interface that can handle archive
files in a generic way.
@@ -318,7 +318,7 @@ if (in->IsOk())
@section overview_arc_noseek Archives on Non-Seekable Streams
@section overview_archive_noseek Archives on Non-Seekable Streams
In general, handling archives on non-seekable streams is done in the same way
as for seekable streams, with a few caveats.
@@ -331,7 +331,7 @@ For each archive type, there will also be other limitations which will depend
on the order the entries' meta-data is stored within the archive. These are not
too difficult to deal with, and are outlined below.
@subsection overview_arc_noseek_entrysize PutNextEntry and the Entry Size
@subsection overview_archive_noseek_entrysize PutNextEntry and the Entry Size
When writing archives, some archive formats store the entry size before the
entry's data (tar has this limitation, zip doesn't). In this case the entry's
@@ -346,7 +346,7 @@ For generic programming, one way to handle this is to supply the size whenever
it is known, and rely on the error message from the output stream when the
operation is not supported.
@subsection overview_arc_noseek_weak GetNextEntry and the Weak Reference Mechanism
@subsection overview_archive_noseek_weak GetNextEntry and the Weak Reference Mechanism
Some archive formats do not store all an entry's meta-data before the entry's
data (zip is an example). In this case, when reading from a non-seekable
@@ -375,7 +375,7 @@ preserve entries' meta-data. No matter what order order the meta-data occurs
within the archive, the input stream will always have read it before the output
stream must write it.
@subsection overview_arc_noseek_notifier wxArchiveNotifier
@subsection overview_archive_noseek_notifier wxArchiveNotifier
Notifier objects can be used to get a notification whenever an input stream
updates a wxArchiveEntry object's data via the weak reference mechanism.

379
interface/archive.h
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@@ -1,6 +1,6 @@
/////////////////////////////////////////////////////////////////////////////
// Name: archive.h
// Purpose: interface of wxArchiveInputStream
// Purpose: interface of wxArchive* classes
// Author: wxWidgets team
// RCS-ID: $Id$
// Licence: wxWindows license
@@ -13,18 +13,19 @@
An abstract base class which serves as a common interface to
archive input streams such as wxZipInputStream.
wxArchiveInputStream::GetNextEntry returns an
wxArchiveEntry object containing the meta-data
for the next entry in the archive (and gives away ownership). Reading from
the wxArchiveInputStream 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.
wxArchiveInputStream::GetNextEntry returns an wxArchiveEntry object containing
the meta-data for the next entry in the archive (and gives away ownership).
Reading from the wxArchiveInputStream 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().
@library{wxbase}
@category{FIXME}
@category{archive}
@see @ref overview_wxarc "Archive formats such as zip", wxArchiveEntry,
wxArchiveOutputStream
@see @ref overview_archive, wxArchiveEntry, wxArchiveOutputStream
*/
class wxArchiveInputStream : public wxFilterInputStream
{
@@ -37,18 +38,17 @@ public:
/**
Closes the current entry if one is open, then reads the meta-data for
the next entry and returns it in a wxArchiveEntry
object, giving away ownership. Reading this wxArchiveInputStream then
returns the entry's data.
the next entry and returns it in a wxArchiveEntry object, giving away
ownership. Reading this wxArchiveInputStream then returns the entry's data.
*/
wxArchiveEntry* GetNextEntry();
/**
Closes the current entry if one is open, then opens the entry specified
by the wxArchiveEntry object.
@a entry must be from the same archive file that this
wxArchiveInputStream is reading, and it must be reading it from a
seekable stream.
@a entry must be from the same archive file that this wxArchiveInputStream
is reading, and it must be reading it from a seekable stream.
*/
bool OpenEntry(wxArchiveEntry& entry);
};
@@ -62,23 +62,20 @@ public:
An abstract base class which serves as a common interface to
archive output streams such as wxZipOutputStream.
wxArchiveOutputStream::PutNextEntry is used
to create a new entry in the output archive, then the entry's data is
written to the wxArchiveOutputStream. Another call to PutNextEntry()
closes the current entry and begins the next.
wxArchiveOutputStream::PutNextEntry is used to create a new entry in the
output archive, then the entry's data is written to the wxArchiveOutputStream.
Another call to PutNextEntry() closes the current entry and begins the next.
@library{wxbase}
@category{FIXME}
@category{archive}
@see @ref overview_wxarc "Archive formats such as zip", wxArchiveEntry,
wxArchiveInputStream
@see @ref overview_archive, wxArchiveEntry, wxArchiveInputStream
*/
class wxArchiveOutputStream : public wxFilterOutputStream
{
public:
/**
Calls Close() if it has not already
been called.
Calls Close() if it has not already been called.
*/
~wxArchiveOutputStream();
@@ -89,23 +86,24 @@ public:
bool Close();
/**
Close the current entry. It is called implicitly whenever another new
entry is created with CopyEntry()
or PutNextEntry(), or
when the archive is closed.
Close the current entry.
It is called implicitly whenever another new entry is created with CopyEntry()
or PutNextEntry(), or when the archive is closed.
*/
bool CloseEntry();
/**
Some archive formats have additional meta-data that applies to the archive
as a whole. For example in the case of zip there is a comment, which
is stored at the end of the zip file. CopyArchiveMetaData() can be used
to transfer such information when writing a modified copy of an archive.
as a whole.
For example in the case of zip there is a comment, which is stored at the end
of the zip file. CopyArchiveMetaData() can be used to transfer such information
when writing a modified copy of an archive.
Since the position of the meta-data can vary between the various archive
formats, it is best to call CopyArchiveMetaData() before transferring
the entries. The wxArchiveOutputStream
will then hold on to the meta-data and write it at the correct point in
the output file.
the entries. The wxArchiveOutputStream will then hold on to the meta-data
and write it at the correct point in the output file.
When the input archive is being read from a non-seekable stream, the
meta-data may not be available when CopyArchiveMetaData() is called,
in which case the two streams set up a link and transfer the data
@@ -117,9 +115,11 @@ public:
Takes ownership of @a entry and uses it to create a new entry in the
archive. @a entry is then opened in the input stream @e stream
and its contents copied to this stream.
For archive types which compress entry data, CopyEntry() is likely to be
much more efficient than transferring the data using Read() and Write()
since it will copy them without decompressing and recompressing them.
@a entry must be from the same archive file that @a stream is
accessing. For non-seekable streams, @a entry must also be the last
thing read from @e stream.
@@ -128,25 +128,26 @@ public:
wxArchiveInputStream& stream);
/**
)
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);
//@{
/**
, @b off_t@e size = wxInvalidOffset)
Takes ownership of entry and uses it to create a new entry in the archive.
The entry's data can then be written by writing to this wxArchiveOutputStream.
*/
bool PutNextEntry(wxArchiveEntry* entry);
/**
Create a new entry with the given name, timestamp and size. The entry's
data can then be written by writing to this wxArchiveOutputStream.
*/
bool PutNextEntry(wxArchiveEntry* entry);
bool PutNextEntry(const wxString& name);
//@}
bool PutNextEntry(const wxString& name, const wxDateTime& dt = wxDateTime::Now(),
off_t size = wxInvalidOffset);
};
@@ -160,11 +161,25 @@ public:
These hold the meta-data (filename, timestamp, etc.), for entries
in archive files such as zips and tars.
@library{wxbase}
@category{FIXME}
<b>About non-seekable streams</b>: this information applies only when reading
archives from non-seekable streams. When the stream is seekable GetNextEntry()
returns a fully populated wxArchiveEntry.
See @ref overview_archive_noseek for more information.
@see @ref overview_wxarc "Archive formats such as zip", @ref
overview_wxarcgeneric "Generic archive programming", wxArchiveInputStream, wxArchiveOutputStream, wxArchiveNotifier
For generic programming, when the worst case must be assumed, you can rely on
all the fields of wxArchiveEntry being fully populated when
wxArchiveInputStream::GetNextEntry() returns, with the the following exceptions:
@li GetSize(): guaranteed to be available after the entry has been read to Eof(),
or CloseEntry() has been called;
@li IsReadOnly(): guaranteed to be available after the end of the archive has
been reached, i.e. after GetNextEntry() returns NULL and Eof() is true.
@library{wxbase}
@category{archive}
@see @ref overview_archive, @ref overview_archive_generic,
wxArchiveInputStream, wxArchiveOutputStream, wxArchiveNotifier
*/
class wxArchiveEntry : public wxObject
{
@@ -174,34 +189,43 @@ public:
*/
wxArchiveEntry* Clone() const;
//@{
/**
The entry's timestamp.
Gets the entry's timestamp.
*/
wxDateTime GetDateTime();
const void SetDateTime(const wxDateTime& dt);
//@}
//@{
/**
The entry's name, by default in the native format. The name can include
directory components, i.e. it can be a full path.
If this is a directory entry, (i.e. if IsDir()
is @true) then GetName() returns the name with a trailing path separator.
Similarly, setting a name with a trailing path separator sets IsDir().
Sets the entry's timestamp.
*/
const void SetDateTime(const wxDateTime& dt);
/**
Returns the entry's name, by default in the native format.
The name can include directory components, i.e. it can be a full path.
If this is a directory entry, (i.e. if IsDir() is @true) then the
returned string is the name with a trailing path separator.
*/
wxString GetName(wxPathFormat format = wxPATH_NATIVE);
/**
Sets the entry's name.
Setting a name with a trailing path separator sets IsDir().
@see GetName()
*/
const void SetName(const wxString& name,
wxPathFormat format = wxPATH_NATIVE);
//@}
//@{
/**
The size of the entry's data in bytes.
Returns the size of the entry's data in bytes.
*/
off_t GetSize();
/**
Sets the size of the entry's data in bytes.
*/
const void SetSize(off_t size);
//@}
/**
Returns the path format used internally within the archive to store
@@ -213,10 +237,11 @@ public:
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.
@see @ref overview_wxarcbyname "Looking up an archive entry by name"
@see @ref overview_archive_byname
*/
wxString GetInternalName() const;
@@ -225,52 +250,70 @@ public:
*/
off_t GetOffset() const;
//@{
/**
True if this is a directory entry.
Returns @true if this is a directory entry.
Directory entries are entries with no data, which are used to store
the meta-data of directories. They also make it possible for completely
empty directories to be stored.
@note
The names of entries within an archive can be complete paths, and
unarchivers typically create whatever directories are necessary as they
restore files, even if the archive contains no explicit directory entries.
*/
bool IsDir();
const void SetIsDir(bool isDir = true);
//@}
//@{
/**
True if the entry is a read-only file.
Marks this entry as a directory if @a isDir is @true. See IsDir() for more info.
*/
const void SetIsDir(bool isDir = true);
/**
Returns @true if the entry is a read-only file.
*/
bool IsReadOnly();
const void SetIsReadOnly(bool isReadOnly = true);
//@}
//@{
/**
Sets the notifier() for this entry.
Whenever the wxArchiveInputStream updates
this entry, it will then invoke the associated
notifier's wxArchiveNotifier::OnEntryUpdated
method.
Sets this entry as a read-only file.
*/
const void SetIsReadOnly(bool isReadOnly = true);
/**
Sets the notifier (see wxArchiveNotifier) for this entry.
Whenever the wxArchiveInputStream updates this entry, it will then invoke
the associated notifier's wxArchiveNotifier::OnEntryUpdated method.
Setting a notifier is not usually necessary. It is used to handle
certain cases when modifying an archive in a pipeline (i.e. between
non-seekable streams).
*/
void SetNotifier(wxArchiveNotifier& notifier);
/**
Unsets the notifier eventually attached to this entry.
*/
void UnsetNotifier();
//@}
};
/**
Type of stream enumeration; used by wxArchiveClassFactory methods.
*/
enum wxStreamProtocolType
{
wxSTREAM_PROTOCOL, //!< wxFileSystem protocol (should be only one)
wxSTREAM_MIMETYPE, //!< MIME types the stream handles
wxSTREAM_ENCODING, //!< Not used for archives
wxSTREAM_FILEEXT //!< File extensions the stream handles
};
/**
@class wxArchiveClassFactory
@wxheader{archive.h}
Allows the creation of streams to handle archive formats such
as zip and tar.
Allows the creation of streams to handle archive formats such as zip and tar.
For example, given a filename you can search for a factory that will
handle it and create a stream to read it:
@@ -278,19 +321,20 @@ public:
@code
factory = wxArchiveClassFactory::Find(filename, wxSTREAM_FILEEXT);
if (factory)
stream = factory-NewStream(new wxFFileInputStream(filename));
stream = factory->NewStream(new wxFFileInputStream(filename));
@endcode
wxArchiveClassFactory::Find can also search
for a factory by MIME type or wxFileSystem protocol.
The available factories can be enumerated
using @ref wxArchiveClassFactory::getfirst "GetFirst() and GetNext".
wxArchiveClassFactory::Find can also search for a factory by MIME type
or wxFileSystem protocol.
The available factories can be enumerated using
wxArchiveClassFactory::GetFirst() and wxArchiveClassFactory::GetNext().
@library{wxbase}
@category{FIXME}
@category{archive}
@see @ref overview_wxarc "Archive formats such as zip", @ref
overview_wxarcgeneric "Generic archive programming", wxArchiveEntry, wxArchiveInputStream, wxArchiveOutputStream, wxFilterClassFactory
@see @ref overview_archive, @ref overview_archive_generic, wxArchiveEntry,
wxArchiveInputStream, wxArchiveOutputStream, wxFilterClassFactory
*/
class wxArchiveClassFactory : public wxObject
{
@@ -298,6 +342,7 @@ public:
/**
Returns @true if this factory can handle the given protocol, MIME type
or file extension.
When using wxSTREAM_FILEEXT for the second parameter, the first parameter
can be a complete filename rather than just an extension.
*/
@@ -308,28 +353,42 @@ public:
A static member that finds a factory that can handle a given protocol, MIME
type or file extension. Returns a pointer to the class factory if found, or
@NULL otherwise. It does not give away ownership of the factory.
When using wxSTREAM_FILEEXT for the second parameter, the first parameter
can be a complete filename rather than just an extension.
*/
static const wxArchiveClassFactory* Find(const wxChar* protocol,
wxStreamProtocolType type = wxSTREAM_PROTOCOL);
//@{
/**
The wxMBConv object that the created streams
will use when translating meta-data. The initial default, set by the
constructor, is wxConvLocal.
Returns the wxMBConv object that the created streams will use when
translating meta-data. The initial default, set by the constructor,
is wxConvLocal.
*/
wxMBConv GetConv();
const void SetConv(wxMBConv& conv);
//@}
wxMBConv GetConv() const;
/**
Sets the wxMBConv object that the created streams will use when
translating meta-data.
*/
void SetConv(wxMBConv& conv);
//@{
/**
GetFirst and GetNext can be used to enumerate the available factories.
For example, to list them:
GetFirst()/GetNext() return a pointer to a factory or @NULL if no more
@code
wxString list;
const wxArchiveClassFactory *factory = wxArchiveClassFactory::GetFirst();
while (factory) {
list << factory->GetProtocol() << _T("\n");
factory = factory->GetNext();
}
@endcode
GetFirst() and GetNext() return a pointer to a factory or @NULL if no more
are available. They do not give away ownership of the factory.
*/
static const wxArchiveClassFactory* GetFirst() const;
@@ -338,50 +397,59 @@ public:
/**
Calls the static GetInternalName() function for the archive entry type,
for example
wxZipEntry::GetInternalName.
for example wxZipEntry::GetInternalName.
*/
wxString GetInternalName(const wxString& name,
wxPathFormat format = wxPATH_NATIVE) const;
/**
Returns the wxFileSystem protocol supported by this factory. Equivalent
to wxString(*GetProtcols()).
Returns the wxFileSystem protocol supported by this factory.
Equivalent to @code wxString(*GetProtocols()) @endcode.
*/
wxString GetProtocol() const;
/**
Returns the protocols, MIME types or file extensions supported by this
factory, as an array of null terminated strings. It does not give away
ownership of the array or strings.
factory, as an array of null terminated strings.
It does not give away ownership of the array or strings.
For example, to list the file extensions a factory supports:
@code
wxString list;
const wxChar *const *p;
for (p = factory->GetProtocols(wxSTREAM_FILEEXT); *p; p++)
list << *p << _T("\n");
@encode
*/
const wxChar* const* GetProtocols(wxStreamProtocolType type = wxSTREAM_PROTOCOL) const;
/**
Create a new wxArchiveEntry object of the
appropriate type.
Create a new wxArchiveEntry object of the appropriate type.
*/
wxArchiveEntry* NewEntry() const;
//@{
/**
Create a new input or output stream to read or write an archive.
If the parent stream is passed as a pointer then the new archive stream
takes ownership of it. If it is passed by reference then it does not.
*/
wxArchiveInputStream* NewStream(wxInputStream& stream) const;
const wxArchiveOutputStream* NewStream(wxOutputStream& stream) const;
const wxArchiveInputStream* NewStream(wxInputStream* stream) const;
const wxArchiveOutputStream* NewStream(wxOutputStream* stream) const;
wxArchiveOutputStream* NewStream(wxOutputStream& stream) const;
wxArchiveInputStream* NewStream(wxInputStream* stream) const;
wxArchiveOutputStream* NewStream(wxOutputStream* stream) const;
//@}
/**
Adds this class factory to the list returned
by @ref getfirst() GetFirst()/GetNext.
Adds this class factory to the list returned by GetFirst() or GetNext().
It is not necessary to do this to use the archive streams. It is usually
used when implementing streams, typically the implementation will
add a static instance of its factory class.
It can also be used to change the order of a factory already in the list,
bringing it to the front. This isn't a thread safe operation
so can't be done when other threads are running that will be using the list.
@@ -390,10 +458,10 @@ public:
void PushFront();
/**
Removes this class factory from the list returned
by @ref getfirst() GetFirst()/GetNext.
Removing from the list isn't a thread safe operation
so can't be done when other threads are running that will be using the list.
Removes this class factory from the list returned by GetFirst() and GetNext().
Removing from the list isn't a thread safe operation so can't be done when
other threads are running that will be using the list.
The list does not own the factories, so removing a factory does not delete it.
*/
void Remove();
@@ -405,26 +473,25 @@ public:
@class wxArchiveNotifier
@wxheader{archive.h}
If you need to know when a
wxArchiveInputStream updates a
wxArchiveEntry object, you can create
a notifier by deriving from this abstract base class, overriding
wxArchiveNotifier::OnEntryUpdated. An instance
of your notifier class can then be assigned to the wxArchiveEntry object
using wxArchiveEntry::SetNotifier.
If you need to know when a wxArchiveInputStream updates a wxArchiveEntry
object, you can create a notifier by deriving from this abstract base class,
overriding wxArchiveNotifier::OnEntryUpdated.
An instance of your notifier class can then be assigned to the wxArchiveEntry
object using wxArchiveEntry::SetNotifier.
Your OnEntryUpdated() method will then be invoked whenever the input
stream updates the entry.
Setting a notifier is not usually necessary. It is used to handle
certain cases when modifying an archive 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}
@see @ref overview_wxarcnoseek "Archives on non-seekable streams",
wxArchiveEntry, wxArchiveInputStream, wxArchiveOutputStream
@see @ref overview_archive_noseek, wxArchiveEntry, wxArchiveInputStream,
wxArchiveOutputStream
*/
class wxArchiveNotifier
{
@@ -461,35 +528,34 @@ public:
@endcode
The first template parameter should be the type of archive input stream
(e.g. wxArchiveInputStream) and the
second can either be a pointer to an entry
(e.g. wxArchiveEntry*), or a string/pointer pair
(e.g. std::pairwxString, wxArchiveEntry*).
(e.g. wxArchiveInputStream) and the second can either be a pointer to an entry
(e.g. wxArchiveEntry*), or a string/pointer pair (e.g. std::pairwxString,
wxArchiveEntry*).
The @c wx/archive.h header defines the following typedefs:
@code
typedef wxArchiveIteratorwxArchiveInputStream wxArchiveIter;
typedef wxArchiveIterator<wxArchiveInputStream> wxArchiveIter;
typedef wxArchiveIteratorwxArchiveInputStream,
std::pairwxString, wxArchiveEntry* wxArchivePairIter;
typedef wxArchiveIterator<wxArchiveInputStream,
std::pair<wxString, wxArchiveEntry*> > wxArchivePairIter;
@endcode
The header for any implementation of this interface should define similar
typedefs for its types, for example in @c wx/zipstrm.h there is:
@code
typedef wxArchiveIteratorwxZipInputStream wxZipIter;
typedef wxArchiveIterator<wxZipInputStream> wxZipIter;
typedef wxArchiveIteratorwxZipInputStream,
std::pairwxString, wxZipEntry* wxZipPairIter;
typedef wxArchiveIterator<wxZipInputStream,
std::pair<wxString, wxZipEntry*> > wxZipPairIter;
@endcode
Transferring the catalogue of an archive @e arc to a vector @e cat,
can then be done something like this:
@code
std::vectorwxArchiveEntry* cat((wxArchiveIter)arc, wxArchiveIter());
std::vector<wxArchiveEntry*> cat((wxArchiveIter)arc, wxArchiveIter());
@endcode
When the iterator is dereferenced, it gives away ownership of an entry
@@ -497,27 +563,26 @@ public:
you must delete the pointers it contains.
If you have smart pointers with normal copy semantics (i.e. not auto_ptr
or wxScopedPtr), then you can create an iterator
which uses them instead. For example, with a smart pointer class for
zip entries @e ZipEntryPtr:
or wxScopedPtr), then you can create an iterator which uses them instead.
For example, with a smart pointer class for zip entries @e ZipEntryPtr:
@code
typedef std::vectorZipEntryPtr ZipCatalog;
typedef wxArchiveIteratorwxZipInputStream, ZipEntryPtr ZipIter;
typedef std::vector<ZipEntryPtr> ZipCatalog;
typedef wxArchiveIterator<wxZipInputStream, ZipEntryPtr> ZipIter;
ZipCatalog cat((ZipIter)zip, ZipIter());
@endcode
Iterators that return std::pair objects can be used to
populate a std::multimap, to allow entries to be looked
up by name. The string is initialised using the wxArchiveEntry object's
Iterators that return std::pair objects can be used to populate a std::multimap,
to allow entries to be looked up by name.
The string is initialised using the wxArchiveEntry object's
wxArchiveEntry::GetInternalName function.
@code
typedef std::multimapwxString, wxZipEntry* ZipCatalog;
typedef std::multimap<wxString, wxZipEntry*> ZipCatalog;
ZipCatalog cat((wxZipPairIter)zip, wxZipPairIter());
@endcode
Note that this iterator also gives away ownership of an entry
object each time it is dereferenced. So in the above example, when
you have finished with @e cat you must delete the pointers it contains.
@@ -526,28 +591,30 @@ public:
(again @e ZipEntryPtr), no worries about ownership:
@code
typedef std::multimapwxString, ZipEntryPtr ZipCatalog;
typedef wxArchiveIteratorwxZipInputStream,
std::pairwxString, ZipEntryPtr ZipPairIter;
typedef std::multimap<wxString, ZipEntryPtr> ZipCatalog;
typedef wxArchiveIterator<wxZipInputStream,
std::pair<wxString, ZipEntryPtr> > ZipPairIter;
ZipCatalog cat((ZipPairIter)zip, ZipPairIter());
@endcode
@library{wxbase}
@category{FIXME}
@category{archive}
@see wxArchiveEntry, wxArchiveInputStream, wxArchiveOutputStream
*/
class wxArchiveIterator
{
public:
//@{
/**
Construct iterator that returns all the entries in the archive input
stream @e arc.
Default constructor.
*/
wxArchiveIterator();
/**
Construct the iterator that returns all the entries in the archive input
stream @e arc.
*/
wxArchiveIterator(Arc& arc);
//@}
/**
Returns an entry object from the archive input stream, giving away
@@ -560,7 +627,7 @@ public:
Position the input iterator at the next entry in the archive input stream.
*/
wxArchiveIterator operator++();
wxArchiveIterator operator++(int );
wxArchiveIterator operator++(int);
//@}
};