1 /////////////////////////////////////////////////////////////////////////////
3 // Purpose: wxFileName - encapsulates a file path
4 // Author: Robert Roebling, Vadim Zeitlin
8 // Copyright: (c) 2000 Robert Roebling
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
12 #ifndef _WX_FILENAME_H_
13 #define _WX_FILENAME_H_
18 1. support for drives under Windows
19 2. more file operations:
21 b) [acm]time() - get and set
23 3. SameFileAs() function to compare inodes under Unix
26 #include "wx/arrstr.h"
27 #include "wx/filefn.h"
28 #include "wx/datetime.h"
30 #include "wx/longlong.h"
34 class WXDLLIMPEXP_FWD_BASE wxFile
;
38 class WXDLLIMPEXP_FWD_BASE wxFFile
;
41 // this symbol is defined for the platforms where file systems use volumes in
43 #if defined(__WXMSW__) || defined(__DOS__) || defined(__OS2__)
44 #define wxHAS_FILESYSTEM_VOLUMES
47 // ----------------------------------------------------------------------------
49 // ----------------------------------------------------------------------------
51 // the various values for the path format: this mainly affects the path
52 // separator but also whether or not the path has the drive part (as under
56 wxPATH_NATIVE
= 0, // the path format for the current platform
58 wxPATH_BEOS
= wxPATH_UNIX
,
61 wxPATH_WIN
= wxPATH_DOS
,
62 wxPATH_OS2
= wxPATH_DOS
,
65 wxPATH_MAX
// Not a valid value for specifying path format
68 // the kind of normalization to do with the file name: these values can be
69 // or'd together to perform several operations at once
72 wxPATH_NORM_ENV_VARS
= 0x0001, // replace env vars with their values
73 wxPATH_NORM_DOTS
= 0x0002, // squeeze all .. and . and prepend cwd
74 wxPATH_NORM_TILDE
= 0x0004, // Unix only: replace ~ and ~user
75 wxPATH_NORM_CASE
= 0x0008, // if case insensitive => tolower
76 wxPATH_NORM_ABSOLUTE
= 0x0010, // make the path absolute
77 wxPATH_NORM_LONG
= 0x0020, // make the path the long form
78 wxPATH_NORM_SHORTCUT
= 0x0040, // resolve the shortcut, if it is a shortcut
79 wxPATH_NORM_ALL
= 0x00ff & ~wxPATH_NORM_CASE
82 // what exactly should GetPath() return?
85 wxPATH_NO_SEPARATOR
= 0x0000, // for symmetry with wxPATH_GET_SEPARATOR
86 wxPATH_GET_VOLUME
= 0x0001, // include the volume if applicable
87 wxPATH_GET_SEPARATOR
= 0x0002 // terminate the path with the separator
93 wxPATH_MKDIR_FULL
= 0x0001 // create directories recursively
99 wxPATH_RMDIR_FULL
= 0x0001, // delete with subdirectories if empty
100 wxPATH_RMDIR_RECURSIVE
= 0x0002 // delete all recursively (dangerous!)
104 // error code of wxFileName::GetSize()
105 extern WXDLLIMPEXP_DATA_BASE(const wxULongLong
) wxInvalidSize
;
106 #endif // wxUSE_LONGLONG
110 // ----------------------------------------------------------------------------
111 // wxFileName: encapsulates a file path
112 // ----------------------------------------------------------------------------
114 class WXDLLIMPEXP_BASE wxFileName
117 // constructors and assignment
120 wxFileName() { Clear(); }
121 wxFileName(const wxFileName
& filepath
) { Assign(filepath
); }
123 // from a full filename: if it terminates with a '/', a directory path
124 // is contructed (the name will be empty), otherwise a file name and
125 // extension are extracted from it
126 wxFileName( const wxString
& fullpath
, wxPathFormat format
= wxPATH_NATIVE
)
127 { Assign( fullpath
, format
); }
129 // from a directory name and a file name
130 wxFileName(const wxString
& path
,
131 const wxString
& name
,
132 wxPathFormat format
= wxPATH_NATIVE
)
133 { Assign(path
, name
, format
); }
135 // from a volume, directory name, file base name and extension
136 wxFileName(const wxString
& volume
,
137 const wxString
& path
,
138 const wxString
& name
,
140 wxPathFormat format
= wxPATH_NATIVE
)
141 { Assign(volume
, path
, name
, ext
, format
); }
143 // from a directory name, file base name and extension
144 wxFileName(const wxString
& path
,
145 const wxString
& name
,
147 wxPathFormat format
= wxPATH_NATIVE
)
148 { Assign(path
, name
, ext
, format
); }
150 // the same for delayed initialization
152 void Assign(const wxFileName
& filepath
);
154 void Assign(const wxString
& fullpath
,
155 wxPathFormat format
= wxPATH_NATIVE
);
157 void Assign(const wxString
& volume
,
158 const wxString
& path
,
159 const wxString
& name
,
162 wxPathFormat format
= wxPATH_NATIVE
);
164 void Assign(const wxString
& volume
,
165 const wxString
& path
,
166 const wxString
& name
,
168 wxPathFormat format
= wxPATH_NATIVE
)
169 { Assign(volume
, path
, name
, ext
, !ext
.empty(), format
); }
171 void Assign(const wxString
& path
,
172 const wxString
& name
,
173 wxPathFormat format
= wxPATH_NATIVE
);
175 void Assign(const wxString
& path
,
176 const wxString
& name
,
178 wxPathFormat format
= wxPATH_NATIVE
);
180 void AssignDir(const wxString
& dir
, wxPathFormat format
= wxPATH_NATIVE
);
182 // assorted assignment operators
184 wxFileName
& operator=(const wxFileName
& filename
)
185 { if (this != &filename
) Assign(filename
); return *this; }
187 wxFileName
& operator=(const wxString
& filename
)
188 { Assign(filename
); return *this; }
190 // reset all components to default, uninitialized state
193 // static pseudo constructors
194 static wxFileName
FileName(const wxString
& file
,
195 wxPathFormat format
= wxPATH_NATIVE
);
196 static wxFileName
DirName(const wxString
& dir
,
197 wxPathFormat format
= wxPATH_NATIVE
);
201 // is the filename valid at all?
204 // we're fine if we have the path or the name or if we're a root dir
205 return m_dirs
.size() != 0 || !m_name
.empty() || !m_relative
||
206 !m_ext
.empty() || m_hasExt
;
209 // does the file with this name exists?
210 bool FileExists() const;
211 static bool FileExists( const wxString
&file
);
213 // does the directory with this name exists?
214 bool DirExists() const;
215 static bool DirExists( const wxString
&dir
);
217 // checks on most common flags for files/directories;
218 // more platform-specific features (like e.g. Unix permissions) are not
219 // available in wxFileName
221 bool IsDirWritable() const { return wxIsWritable(GetPath()); }
222 static bool IsDirWritable(const wxString
&path
) { return wxDirExists(path
) && wxIsWritable(path
); }
224 bool IsDirReadable() const { return wxIsReadable(GetPath()); }
225 static bool IsDirReadable(const wxString
&path
) { return wxDirExists(path
) && wxIsReadable(path
); }
227 // NOTE: IsDirExecutable() is not present because the meaning of "executable"
228 // directory is very platform-dependent and also not so useful
230 bool IsFileWritable() const { return wxIsWritable(GetFullPath()); }
231 static bool IsFileWritable(const wxString
&path
) { return wxFileExists(path
) && wxIsWritable(path
); }
233 bool IsFileReadable() const { return wxIsReadable(GetFullPath()); }
234 static bool IsFileReadable(const wxString
&path
) { return wxFileExists(path
) && wxIsReadable(path
); }
236 bool IsFileExecutable() const { return wxIsExecutable(GetFullPath()); }
237 static bool IsFileExecutable(const wxString
&path
) { return wxFileExists(path
) && wxIsExecutable(path
); }
242 // set the file last access/mod and creation times
243 // (any of the pointers may be NULL)
244 bool SetTimes(const wxDateTime
*dtAccess
,
245 const wxDateTime
*dtMod
,
246 const wxDateTime
*dtCreate
);
248 // set the access and modification times to the current moment
251 // return the last access, last modification and create times
252 // (any of the pointers may be NULL)
253 bool GetTimes(wxDateTime
*dtAccess
,
255 wxDateTime
*dtCreate
) const;
257 // convenience wrapper: get just the last mod time of the file
258 wxDateTime
GetModificationTime() const
261 (void)GetTimes(NULL
, &dtMod
, NULL
);
264 #endif // wxUSE_DATETIME
266 #if defined( __WXOSX_MAC__ ) && wxOSX_USE_CARBON
267 bool MacSetTypeAndCreator( wxUint32 type
, wxUint32 creator
) ;
268 bool MacGetTypeAndCreator( wxUint32
*type
, wxUint32
*creator
) ;
269 // gets the 'common' type and creator for a certain extension
270 static bool MacFindDefaultTypeAndCreator( const wxString
& ext
, wxUint32
*type
, wxUint32
*creator
) ;
271 // registers application defined extensions and their default type and creator
272 static void MacRegisterDefaultTypeAndCreator( const wxString
& ext
, wxUint32 type
, wxUint32 creator
) ;
273 // looks up the appropriate type and creator from the registration and then sets
274 bool MacSetDefaultTypeAndCreator() ;
277 // various file/dir operations
279 // retrieve the value of the current working directory
280 void AssignCwd(const wxString
& volume
= wxEmptyString
);
281 static wxString
GetCwd(const wxString
& volume
= wxEmptyString
);
283 // change the current working directory
285 static bool SetCwd( const wxString
&cwd
);
287 // get the value of user home (Unix only mainly)
288 void AssignHomeDir();
289 static wxString
GetHomeDir();
291 // get the system temporary directory
292 static wxString
GetTempDir();
294 #if wxUSE_FILE || wxUSE_FFILE
295 // get a temp file name starting with the specified prefix
296 void AssignTempFileName(const wxString
& prefix
);
297 static wxString
CreateTempFileName(const wxString
& prefix
);
301 // get a temp file name starting with the specified prefix and open the
302 // file passed to us using this name for writing (atomically if
304 void AssignTempFileName(const wxString
& prefix
, wxFile
*fileTemp
);
305 static wxString
CreateTempFileName(const wxString
& prefix
,
310 // get a temp file name starting with the specified prefix and open the
311 // file passed to us using this name for writing (atomically if
313 void AssignTempFileName(const wxString
& prefix
, wxFFile
*fileTemp
);
314 static wxString
CreateTempFileName(const wxString
& prefix
,
316 #endif // wxUSE_FFILE
318 // directory creation and removal.
319 bool Mkdir(int perm
= wxS_DIR_DEFAULT
, int flags
= 0);
320 static bool Mkdir(const wxString
&dir
, int perm
= wxS_DIR_DEFAULT
,
323 bool Rmdir(int flags
= 0);
324 static bool Rmdir(const wxString
&dir
, int flags
= 0);
326 // operations on the path
328 // normalize the path: with the default flags value, the path will be
329 // made absolute, without any ".." and "." and all environment
330 // variables will be expanded in it
332 // this may be done using another (than current) value of cwd
333 bool Normalize(int flags
= wxPATH_NORM_ALL
,
334 const wxString
& cwd
= wxEmptyString
,
335 wxPathFormat format
= wxPATH_NATIVE
);
337 // get a path path relative to the given base directory, i.e. opposite
340 // pass an empty string to get a path relative to the working directory
342 // returns true if the file name was modified, false if we failed to do
343 // anything with it (happens when the file is on a different volume,
345 bool MakeRelativeTo(const wxString
& pathBase
= wxEmptyString
,
346 wxPathFormat format
= wxPATH_NATIVE
);
348 // make the path absolute
350 // this may be done using another (than current) value of cwd
351 bool MakeAbsolute(const wxString
& cwd
= wxEmptyString
,
352 wxPathFormat format
= wxPATH_NATIVE
)
353 { return Normalize(wxPATH_NORM_DOTS
| wxPATH_NORM_ABSOLUTE
|
354 wxPATH_NORM_TILDE
, cwd
, format
); }
356 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
357 // if the path is a shortcut, return the target and optionally,
359 bool GetShortcutTarget(const wxString
& shortcutPath
,
360 wxString
& targetFilename
,
361 wxString
* arguments
= NULL
);
365 // if the path contains the value of the environment variable named envname
366 // then this function replaces it with the string obtained from
367 // wxString::Format(replacementFmtString, value_of_envname_variable)
370 // wxFileName fn("/usr/openwin/lib/someFile");
371 // fn.ReplaceEnvVariable("OPENWINHOME");
372 // // now fn.GetFullPath() == "$OPENWINHOME/lib/someFile"
373 bool ReplaceEnvVariable(const wxString
& envname
,
374 const wxString
& replacementFmtString
= "$%s",
375 wxPathFormat format
= wxPATH_NATIVE
);
378 // replaces, if present in the path, the home directory for the given user
379 // (see wxGetHomeDir) with a tilde
380 bool ReplaceHomeDir(wxPathFormat format
= wxPATH_NATIVE
);
385 // compares with the rules of the given platforms format
386 bool SameAs(const wxFileName
& filepath
,
387 wxPathFormat format
= wxPATH_NATIVE
) const;
389 // compare with another filename object
390 bool operator==(const wxFileName
& filename
) const
391 { return SameAs(filename
); }
392 bool operator!=(const wxFileName
& filename
) const
393 { return !SameAs(filename
); }
395 // compare with a filename string interpreted as a native file name
396 bool operator==(const wxString
& filename
) const
397 { return SameAs(wxFileName(filename
)); }
398 bool operator!=(const wxString
& filename
) const
399 { return !SameAs(wxFileName(filename
)); }
401 // are the file names of this type cases sensitive?
402 static bool IsCaseSensitive( wxPathFormat format
= wxPATH_NATIVE
);
404 // is this filename absolute?
405 bool IsAbsolute(wxPathFormat format
= wxPATH_NATIVE
) const;
407 // is this filename relative?
408 bool IsRelative(wxPathFormat format
= wxPATH_NATIVE
) const
409 { return !IsAbsolute(format
); }
411 // Returns the characters that aren't allowed in filenames
412 // on the specified platform.
413 static wxString
GetForbiddenChars(wxPathFormat format
= wxPATH_NATIVE
);
415 // Information about path format
417 // get the string separating the volume from the path for this format,
418 // return an empty string if this format doesn't support the notion of
420 static wxString
GetVolumeSeparator(wxPathFormat format
= wxPATH_NATIVE
);
422 // get the string of path separators for this format
423 static wxString
GetPathSeparators(wxPathFormat format
= wxPATH_NATIVE
);
425 // get the string of path terminators, i.e. characters which terminate the
427 static wxString
GetPathTerminators(wxPathFormat format
= wxPATH_NATIVE
);
429 // get the canonical path separator for this format
430 static wxUniChar
GetPathSeparator(wxPathFormat format
= wxPATH_NATIVE
)
431 { return GetPathSeparators(format
)[0u]; }
433 // is the char a path separator for this format?
434 static bool IsPathSeparator(wxChar ch
, wxPathFormat format
= wxPATH_NATIVE
);
437 size_t GetDirCount() const { return m_dirs
.size(); }
438 void AppendDir(const wxString
& dir
);
439 void PrependDir(const wxString
& dir
);
440 void InsertDir(size_t before
, const wxString
& dir
);
441 void RemoveDir(size_t pos
);
442 void RemoveLastDir() { RemoveDir(GetDirCount() - 1); }
445 void SetExt( const wxString
&ext
) { m_ext
= ext
; m_hasExt
= !m_ext
.empty(); }
446 void ClearExt() { m_ext
= wxEmptyString
; m_hasExt
= false; }
447 void SetEmptyExt() { m_ext
= wxT(""); m_hasExt
= true; }
448 wxString
GetExt() const { return m_ext
; }
449 bool HasExt() const { return m_hasExt
; }
451 void SetName( const wxString
&name
) { m_name
= name
; }
452 wxString
GetName() const { return m_name
; }
453 bool HasName() const { return !m_name
.empty(); }
455 void SetVolume( const wxString
&volume
) { m_volume
= volume
; }
456 wxString
GetVolume() const { return m_volume
; }
457 bool HasVolume() const { return !m_volume
.empty(); }
459 // full name is the file name + extension (but without the path)
460 void SetFullName(const wxString
& fullname
);
461 wxString
GetFullName() const;
463 const wxArrayString
& GetDirs() const { return m_dirs
; }
465 // flags are combination of wxPATH_GET_XXX flags
466 wxString
GetPath(int flags
= wxPATH_GET_VOLUME
,
467 wxPathFormat format
= wxPATH_NATIVE
) const;
469 // Replace current path with this one
470 void SetPath( const wxString
&path
, wxPathFormat format
= wxPATH_NATIVE
);
472 // Construct full path with name and ext
473 wxString
GetFullPath( wxPathFormat format
= wxPATH_NATIVE
) const;
475 // Return the short form of the path (returns identity on non-Windows platforms)
476 wxString
GetShortPath() const;
478 // Return the long form of the path (returns identity on non-Windows platforms)
479 wxString
GetLongPath() const;
481 // Is this a file or directory (not necessarily an existing one)
482 bool IsDir() const { return m_name
.empty() && m_ext
.empty(); }
486 // get the canonical path format for this platform
487 static wxPathFormat
GetFormat( wxPathFormat format
= wxPATH_NATIVE
);
489 // split a fullpath into the volume, path, (base) name and extension
490 // (all of the pointers can be NULL)
491 static void SplitPath(const wxString
& fullpath
,
497 wxPathFormat format
= wxPATH_NATIVE
);
499 static void SplitPath(const wxString
& fullpath
,
506 SplitPath(fullpath
, volume
, path
, name
, ext
, NULL
, format
);
509 // compatibility version: volume is part of path
510 static void SplitPath(const wxString
& fullpath
,
514 wxPathFormat format
= wxPATH_NATIVE
);
516 // split a path into volume and pure path part
517 static void SplitVolume(const wxString
& fullpathWithVolume
,
520 wxPathFormat format
= wxPATH_NATIVE
);
522 #ifdef wxHAS_FILESYSTEM_VOLUMES
523 // return the string representing a file system volume, or drive
524 static wxString
GetVolumeString(char drive
, int flags
= wxPATH_GET_SEPARATOR
);
525 #endif // wxHAS_FILESYSTEM_VOLUMES
530 // returns the size of the given filename
531 wxULongLong
GetSize() const;
532 static wxULongLong
GetSize(const wxString
&file
);
534 // returns the size in a human readable form
535 wxString
GetHumanReadableSize(const wxString
&nullsize
= wxGetTranslation(_T("Not available")),
536 int precision
= 1) const;
537 static wxString
GetHumanReadableSize(const wxULongLong
&sz
,
538 const wxString
&nullsize
= wxGetTranslation(_T("Not available")),
540 #endif // wxUSE_LONGLONG
543 // deprecated methods, don't use any more
544 // --------------------------------------
546 #ifndef __DIGITALMARS__
547 wxString
GetPath( bool withSep
, wxPathFormat format
= wxPATH_NATIVE
) const
548 { return GetPath(withSep
? wxPATH_GET_SEPARATOR
: 0, format
); }
550 wxString
GetPathWithSep(wxPathFormat format
= wxPATH_NATIVE
) const
551 { return GetPath(wxPATH_GET_VOLUME
| wxPATH_GET_SEPARATOR
, format
); }
554 // check whether this dir is valid for Append/Prepend/InsertDir()
555 static bool IsValidDirComponent(const wxString
& dir
);
557 // the drive/volume/device specification (always empty for Unix)
560 // the path components of the file
561 wxArrayString m_dirs
;
563 // the file name and extension (empty for directories)
567 // when m_dirs is empty it may mean either that we have no path at all or
568 // that our path is '/', i.e. the root directory
570 // we use m_relative to distinguish between these two cases, it will be
571 // true in the former and false in the latter
573 // NB: the path is not absolute just because m_relative is false, it still
574 // needs the drive (i.e. volume) in some formats (Windows)
577 // when m_ext is empty, it may be because we don't have any extension or
578 // because we have an empty extension
580 // the difference is important as file with name "foo" and without
581 // extension has full name "foo" while with empty extension it is "foo."
585 #endif // _WX_FILENAME_H_