// Purpose: interface of wxFileName
// Author: wxWidgets team
// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
*/
enum wxSizeConvention
{
- /// 1000 bytes = 1KiB.
+ /// 1024 bytes = 1KB.
+ wxSIZE_CONV_TRADITIONAL,
+
+ /// 1024 bytes = 1KiB.
wxSIZE_CONV_IEC,
/// 1000 bytes = 1KB.
- wxSIZE_CONV_SI,
-
- /// 1024 bytes = 1KB.
- wxSIZE_CONV_TRADITIONAL
+ wxSIZE_CONV_SI
};
wxPATH_RMDIR_RECURSIVE = 2
};
+/**
+ Flags for wxFileName::Exists().
+
+ @since 2.9.5
+ */
+enum
+{
+ wxFILE_EXISTS_REGULAR = 0x0001, //!< Check for existence of a regular file
+ wxFILE_EXISTS_DIR = 0x0002, //!< Check for existence of a directory
+ /**
+ Check for existence of a symlink.
+
+ Notice that this flag also sets ::wxFILE_EXISTS_NO_FOLLOW, otherwise it
+ would never be satisfied as wxFileName::Exists() would be checking for
+ the existence of the symlink target and not the symlink itself.
+ */
+ wxFILE_EXISTS_SYMLINK = 0x1004,
+ wxFILE_EXISTS_DEVICE = 0x0008, //!< Check for existence of a device
+ wxFILE_EXISTS_FIFO = 0x0016, //!< Check for existence of a FIFO
+ wxFILE_EXISTS_SOCKET = 0x0032, //!< Check for existence of a socket
+ wxFILE_EXISTS_NO_FOLLOW = 0x1000 //!< Don't dereference a contained symbolic link
+ wxFILE_EXISTS_ANY = 0x1FFF, //!< Check for existence of anything
+};
+
/**
The return value of wxFileName::GetSize() in case of error.
*/
wxFileName::IsDirReadable() use wxFileName::GetPath() whereas methods dealing
with file names like wxFileName::IsFileReadable() use wxFileName::GetFullPath().
- If it is not known wether a string contains a directory name or a complete
+ If it is not known whether a string contains a directory name or a complete
file name (such as when interpreting user input) you need to use the static
function wxFileName::DirExists() (or its identical variants wxDir::Exists() and
wxDirExists()) and construct the wxFileName instance accordingly.
wxPathFormat format = wxPATH_NATIVE);
/**
- Appends a directory component to the path. This component should contain a
- single directory name level, i.e. not contain any path or volume separators nor
- should it be empty, otherwise the function does nothing (and generates an
- assert failure in debug build).
+ Appends a directory component to the path.
+
+ This component should contain a single directory name level, i.e. not
+ contain any path or volume separators nor should it be empty, otherwise
+ the function does nothing and returns false (and generates an assert
+ failure in debug build).
+
+ Notice that the return value is only available in wxWidgets 2.9.5 or
+ later.
*/
- void AppendDir(const wxString& dir);
+ bool AppendDir(const wxString& dir);
/**
Creates the file name from another filename object.
wxPathFormat format = wxPATH_NATIVE);
/**
- Creates the file name from volumne, path, name and extension.
+ Creates the file name from volume, path, name and extension.
*/
void Assign(const wxString& volume, const wxString& path,
const wxString& name,
wxPathFormat format = wxPATH_NATIVE);
/**
- Creates the file name from volumne, path, name and extension.
+ Creates the file name from volume, path, name and extension.
*/
void Assign(const wxString& volume, const wxString& path,
const wxString& name,
*/
void ClearExt();
- //@{
+
/**
Returns a temporary file name starting with the given @e prefix.
- If the @a prefix is an absolute path, the temporary file is created in this
- directory, otherwise it is created in the default system directory for the
- temporary files or in the current directory.
+ If @a prefix is an absolute path and ends in a separator, the
+ temporary file is created in this directory; if it is an absolute
+ filepath or there is no separator, the temporary file is created in its
+ path, with the 'name' segment prepended to the temporary filename;
+ otherwise it is created in the default system directory for temporary
+ files or in the current directory.
If the function succeeds, the temporary file is actually created.
- If @a fileTemp is not @NULL, this file will be opened using the name of
- the temporary file. When possible, this is done in an atomic way ensuring that
- no race condition occurs between the temporary file name generation and opening
- it which could often lead to security compromise on the multiuser systems.
- If @a fileTemp is @NULL, the file is only created, but not opened.
+ If @a fileTemp is not @NULL, this wxFile will be opened using the name of
+ the temporary file. Where possible this is done in an atomic way to ensure that
+ no race condition occurs between creating the temporary file name and opening
+ it, which might lead to a security compromise on multiuser systems.
+ If @a fileTemp is @NULL, the file is created but not opened.
Under Unix, the temporary file will have read and write permissions for the
- owner only to minimize the security problems.
+ owner only, to minimize security problems.
@param prefix
- Prefix to use for the temporary file name construction
+ Location to use for the temporary file name construction. If @a prefix
+ is a directory it must have a terminal separator
@param fileTemp
- The file to open or @NULL to just get the name
+ The file to open, or @NULL just to get the name
- @return The full temporary file name or an empty string on error.
+ @return The full temporary filepath, or an empty string on error.
*/
static wxString CreateTempFileName(const wxString& prefix,
wxFile* fileTemp = NULL);
+
+ /**
+ This is the same as CreateTempFileName(const wxString &prefix, wxFile *fileTemp)
+ but takes a wxFFile parameter instead of wxFile.
+ */
static wxString CreateTempFileName(const wxString& prefix,
wxFFile* fileTemp = NULL);
- //@}
+
/**
Returns @true if the directory with this name exists.
+
+ Notice that this function tests the directory part of this object,
+ i.e. the string returned by GetPath(), and not the full path returned
+ by GetFullPath().
+
+ @see FileExists(), Exists()
*/
bool DirExists() const;
/**
- Returns @true if the directory with this name exists.
+ Returns @true if the directory with name @a dir exists.
+
+ @see FileExists(), Exists()
*/
static bool DirExists(const wxString& dir);
static wxFileName DirName(const wxString& dir,
wxPathFormat format = wxPATH_NATIVE);
+ /**
+ Turns off symlink dereferencing.
+
+ By default, all operations in this class work on the target of a
+ symbolic link (symlink) if the path of the file is actually a symlink.
+ Using this method allows to turn off this "symlink following" behaviour
+ and apply the operations to this path itself, even if it is a symlink.
+
+ The following methods are currently affected by this option:
+ - GetTimes() (but not SetTimes() as there is no portable way to
+ change the time of symlink itself).
+ - Existence checks: FileExists(), DirExists() and Exists() (notice
+ that static versions of these methods always follow symlinks).
+ - IsSameAs().
+
+ @see ShouldFollowLink()
+
+ @since 2.9.5
+ */
+ void DontFollowLink();
+
+ /**
+ Calls the static overload of this function with the full path of this
+ object.
+
+ @since 2.9.4 (@a flags is new since 2.9.5)
+ */
+ bool Exists(int flags = wxFILE_EXISTS_ANY) const;
+
+ /**
+ Returns @true if either a file or a directory or something else with
+ this name exists in the file system.
+
+ Don't dereference @a path if it is a symbolic link and @a flags
+ argument contains ::wxFILE_EXISTS_NO_FOLLOW.
+
+ This method is equivalent to @code FileExists() || DirExists() @endcode
+ under Windows, but under Unix it also returns true if the file
+ identifies a special file system object such as a device, a socket or a
+ FIFO.
+
+ Alternatively you may check for the existence of a file system entry of
+ a specific type by passing the appropriate @a flags (this parameter is
+ new since wxWidgets 2.9.5). E.g. to test for a symbolic link existence
+ you could use ::wxFILE_EXISTS_SYMLINK.
+
+ @since 2.9.4
+
+ @see FileExists(), DirExists()
+ */
+ static bool Exists(const wxString& path, int flags = wxFILE_EXISTS_ANY);
+
/**
Returns @true if the file with this name exists.
- @see DirExists()
+ @see DirExists(), Exists()
*/
bool FileExists() const;
/**
- Returns @true if the file with this name exists.
+ Returns @true if the file with name @a file exists.
- @see DirExists()
+ @see DirExists(), Exists()
*/
static bool FileExists(const wxString& file);
units for multiples of 1024 is used, i.e. returned string will use
suffixes of B, KB, MB, GB, TB for bytes, kilobytes, megabytes,
gigabytes and terabytes respectively. With the IEC convention the names
- of the units are changed to B, KiB, MiB, GiB and TiB fofr bytes,
- kibibytes, mebibyes, gibibytes and tebibytes. Finally, with SI
+ of the units are changed to B, KiB, MiB, GiB and TiB for bytes,
+ kibibytes, mebibytes, gibibytes and tebibytes. Finally, with SI
convention the same B, KB, MB, GB and TB suffixes are used but in their
correct SI meaning, i.e. as multiples of 1000 and not 1024.
Don't include the trailing separator in the returned string. This is
the default (the value of this flag is 0) and exists only for symmetry
with wxPATH_GET_SEPARATOR.
+
+ @note If the path is a toplevel one (e.g. @c "/" on Unix or @c "C:\" on
+ Windows), then the returned path will contain trailing separator
+ even with @c wxPATH_NO_SEPARATOR.
*/
wxString GetPath(int flags = wxPATH_GET_VOLUME,
wxPathFormat format = wxPATH_NATIVE) const;
bool HasVolume() const;
/**
- Inserts a directory component before the zero-based position in the directory
- list. Please see AppendDir() for important notes.
+ Inserts a directory component before the zero-based position in the
+ directory list.
+
+ As with AppendDir(), @a dir must be a single directory name and the
+ function returns @false and does nothing else if it isn't.
+
+ Notice that the return value is only available in wxWidgets 2.9.5 or
+ later.
*/
- void InsertDir(size_t before, const wxString& dir);
+ bool InsertDir(size_t before, const wxString& dir);
/**
Returns @true if this filename is absolute.
/**
On Mac OS, gets the common type and creator for the given extension.
+
+ @onlyfor{wxosx}
*/
static bool MacFindDefaultTypeAndCreator(const wxString& ext,
wxUint32* type,
/**
On Mac OS, registers application defined extensions and their default type
and creator.
+
+ @onlyfor{wxosx}
*/
static void MacRegisterDefaultTypeAndCreator(const wxString& ext,
wxUint32 type,
/**
On Mac OS, looks up the appropriate type and creator from the registration
and then sets it.
+
+ @onlyfor{wxosx}
*/
bool MacSetDefaultTypeAndCreator();
int flags = 0);
/**
- Normalize the path. With the default flags value, the path will be
- made absolute, without any ".." and "." and all environment
- variables will be expanded in it.
+ Normalize the path.
+
+ With the default flags value, the path will be made absolute, without
+ any ".." and "." and all environment variables will be expanded in it.
+
+ Notice that in some rare cases normalizing a valid path may result in
+ an invalid wxFileName object. E.g. normalizing "./" path using
+ wxPATH_NORM_DOTS but not wxPATH_NORM_ABSOLUTE will result in a
+ completely empty and thus invalid object. As long as there is a non
+ empty file name the result of normalization will be valid however.
@param flags
The kind of normalization to do with the file name. It can be
void SetName(const wxString& name);
/**
- Sets the full path.
+ Sets the path.
+
+ The @a path argument includes both the path and the volume, if
+ supported by @a format.
- The @a path argument includes both the path (and the volume, if
- supported by @a format) and the name and extension.
+ Calling this function doesn't affect the name and extension components,
+ to change them as well you can use Assign() or just an assignment
+ operator.
@see GetPath()
*/
*/
void SetVolume(const wxString& volume);
+ /**
+ Return whether some operations will follow symlink.
+
+ By default, file operations "follow symlink", i.e. operate on its
+ target and not on the symlink itself. See DontFollowLink() for more
+ information.
+
+ @since 2.9.5
+ */
+ bool ShouldFollowLink() const;
+
//@{
/**
This function splits a full file name into components: the volume (with the
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