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23324ae1 FM |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: filefn.h | |
1ba0de2e | 3 | // Purpose: interface of wxPathList and file functions |
23324ae1 FM |
4 | // Author: wxWidgets team |
5 | // RCS-ID: $Id$ | |
6 | // Licence: wxWindows license | |
7 | ///////////////////////////////////////////////////////////////////////////// | |
8 | ||
9 | /** | |
10 | @class wxPathList | |
7c913512 | 11 | |
23324ae1 | 12 | The path list is a convenient way of storing a number of directories, and |
1ba0de2e BP |
13 | when presented with a filename without a directory, searching for an |
14 | existing file in those directories. | |
7c913512 | 15 | |
1ba0de2e BP |
16 | Be sure to look also at wxStandardPaths if you only want to search files in |
17 | some standard paths. | |
7c913512 | 18 | |
23324ae1 FM |
19 | @library{wxbase} |
20 | @category{file} | |
7c913512 | 21 | |
e54c96f1 | 22 | @see wxArrayString, wxStandardPaths, wxFileName |
23324ae1 FM |
23 | */ |
24 | class wxPathList : public wxArrayString | |
25 | { | |
26 | public: | |
0ce6d6c8 FM |
27 | wxPathList(); |
28 | ||
23324ae1 FM |
29 | /** |
30 | Constructs the object calling the Add() function. | |
31 | */ | |
7c913512 | 32 | wxPathList(const wxArrayString& arr); |
23324ae1 | 33 | |
23324ae1 | 34 | /** |
0ce6d6c8 | 35 | Adds the given directory to the path list, if the @a path is not already in the list. |
23324ae1 | 36 | If the path cannot be normalized for some reason, it returns @false. |
0ce6d6c8 FM |
37 | |
38 | The @a path is always considered to be a directory but no existence checks will be | |
39 | done on it (because if it doesn't exist, it could be created later and thus result a | |
40 | valid path when FindValidPath() is called). | |
41 | ||
42 | @note if the given path is relative, it won't be made absolute before adding it | |
43 | (this is why FindValidPath() may return relative paths). | |
23324ae1 FM |
44 | */ |
45 | bool Add(const wxString& path); | |
0ce6d6c8 FM |
46 | |
47 | /** | |
48 | Adds all elements of the given array as paths. | |
49 | */ | |
7c913512 | 50 | void Add(const wxArrayString& arr); |
23324ae1 FM |
51 | |
52 | /** | |
53 | Finds the value of the given environment variable, and adds all paths | |
0ce6d6c8 FM |
54 | to the path list. |
55 | ||
56 | Useful for finding files in the @c PATH variable, for example. | |
23324ae1 FM |
57 | */ |
58 | void AddEnvList(const wxString& env_variable); | |
59 | ||
60 | /** | |
0ce6d6c8 | 61 | Given a full filename (with path), calls Add() with the path of the file. |
23324ae1 FM |
62 | */ |
63 | bool EnsureFileAccessible(const wxString& filename); | |
64 | ||
65 | /** | |
0ce6d6c8 FM |
66 | Like FindValidPath() but this function always returns an absolute path |
67 | (eventually prepending the current working directory to the value returned | |
68 | wxPathList::FindValidPath()) or an empty string. | |
23324ae1 | 69 | */ |
328f5751 | 70 | wxString FindAbsoluteValidPath(const wxString& file) const; |
23324ae1 FM |
71 | |
72 | /** | |
73 | Searches the given file in all paths stored in this class. | |
0ce6d6c8 | 74 | |
23324ae1 | 75 | The first path which concatenated to the given string points to an existing |
1ba0de2e | 76 | file (see wxFileExists()) is returned. |
0ce6d6c8 FM |
77 | |
78 | If the file wasn't found in any of the stored paths, an empty string is returned. | |
79 | ||
23324ae1 FM |
80 | The given string must be a file name, eventually with a path prefix (if the path |
81 | prefix is absolute, only its name will be searched); i.e. it must not end with | |
0ce6d6c8 FM |
82 | a directory separator (see wxFileName::GetPathSeparator) otherwise an assertion |
83 | will fail. | |
84 | ||
23324ae1 | 85 | The returned path may be relative to the current working directory. |
0ce6d6c8 | 86 | |
23324ae1 | 87 | Note in fact that wxPathList can be used to store both relative and absolute |
0ce6d6c8 FM |
88 | paths so that if you added relative paths, then the current working directory |
89 | (see wxGetCwd() and wxSetWorkingDirectory()) may affect the value returned | |
90 | by this function! | |
23324ae1 | 91 | */ |
328f5751 | 92 | wxString FindValidPath(const wxString& file) const; |
23324ae1 FM |
93 | }; |
94 | ||
95 | ||
e54c96f1 | 96 | |
23324ae1 FM |
97 | // ============================================================================ |
98 | // Global functions/macros | |
99 | // ============================================================================ | |
100 | ||
1ba0de2e BP |
101 | /** @ingroup group_funcmacro_file */ |
102 | //@{ | |
103 | ||
e7d0a28b FM |
104 | /** |
105 | A special return value of many wxWidgets classes to indicate that | |
106 | an invalid offset was given. | |
107 | */ | |
108 | const int wxInvalidOffset = -1; | |
109 | ||
72dc02c6 FM |
110 | /** |
111 | The type used to store and provide byte offsets or byte sizes for files or streams. | |
112 | ||
113 | It is type-defined as @c off_t on POSIX platforms | |
114 | (see http://www.gnu.org/software/libc/manual/html_node/File-Position-Primitive.html) | |
115 | or to @c wxLongLong_t on Windows when @c wxHAS_HUGE_FILES is defined. | |
116 | */ | |
117 | typedef off_t wxFileOffset; | |
118 | ||
1ba0de2e BP |
119 | /** |
120 | Under Unix this macro changes the current process umask to the given value, | |
121 | unless it is equal to -1 in which case nothing is done, and restores it to | |
122 | the original value on scope exit. It works by declaring a variable which | |
123 | sets umask to @a mask in its constructor and restores it in its destructor. | |
124 | Under other platforms this macro expands to nothing. | |
125 | ||
126 | @header{wx/filefn.h} | |
127 | */ | |
d7b99b16 | 128 | #define wxCHANGE_UMASK(mask) |
1ba0de2e | 129 | |
23324ae1 FM |
130 | /** |
131 | This function returns the total number of bytes and number of free bytes on | |
1ba0de2e BP |
132 | the disk containing the directory @a path (it should exist). Both @a total |
133 | and @a free parameters may be @NULL if the corresponding information is not | |
134 | needed. | |
135 | ||
1e24c2af | 136 | @since 2.3.2 |
1ba0de2e BP |
137 | |
138 | @note The generic Unix implementation depends on the system having the | |
139 | @c statfs() or @c statvfs() function. | |
140 | ||
d29a9a8a | 141 | @return @true on success, @false if an error occurred (for example, the |
1ba0de2e BP |
142 | directory doesn’t exist). |
143 | ||
144 | @header{wx/filefn.h} | |
23324ae1 FM |
145 | */ |
146 | bool wxGetDiskSpace(const wxString& path, | |
4cc4bfaf FM |
147 | wxLongLong total = NULL, |
148 | wxLongLong free = NULL); | |
23324ae1 FM |
149 | |
150 | /** | |
1ba0de2e | 151 | Returns the Windows directory under Windows; other platforms return an |
23324ae1 | 152 | empty string. |
1ba0de2e BP |
153 | |
154 | @header{wx/filefn.h} | |
23324ae1 FM |
155 | */ |
156 | wxString wxGetOSDirectory(); | |
157 | ||
158 | /** | |
1ba0de2e BP |
159 | Parses the @a wildCard, returning the number of filters. Returns 0 if none |
160 | or if there's a problem. | |
161 | ||
162 | The arrays will contain an equal number of items found before the error. On | |
163 | platforms where native dialogs handle only one filter per entry, entries in | |
164 | arrays are automatically adjusted. @a wildCard is in the form: | |
7c913512 | 165 | |
23324ae1 FM |
166 | @code |
167 | "All files (*)|*|Image Files (*.jpeg *.png)|*.jpg;*.png" | |
168 | @endcode | |
1ba0de2e BP |
169 | |
170 | @header{wx/filefn.h} | |
23324ae1 FM |
171 | */ |
172 | int wxParseCommonDialogsFilter(const wxString& wildCard, | |
173 | wxArrayString& descriptions, | |
174 | wxArrayString& filters); | |
175 | ||
176 | /** | |
1ba0de2e BP |
177 | Converts a DOS to a Unix filename by replacing backslashes with forward |
178 | slashes. | |
179 | ||
180 | @header{wx/filefn.h} | |
181 | */ | |
182 | void wxDos2UnixFilename(wxChar* s); | |
183 | ||
184 | /** | |
185 | @warning This function is deprecated, use wxFileName instead. | |
186 | ||
187 | Converts a Unix to a DOS filename by replacing forward slashes with | |
188 | backslashes. | |
189 | ||
190 | @header{wx/filefn.h} | |
23324ae1 | 191 | */ |
4cc4bfaf | 192 | void wxUnix2DosFilename(wxChar* s); |
23324ae1 FM |
193 | |
194 | /** | |
4cc4bfaf | 195 | Returns @true if @a dirname exists and is a directory. |
1ba0de2e BP |
196 | |
197 | @header{wx/filefn.h} | |
23324ae1 FM |
198 | */ |
199 | bool wxDirExists(const wxString& dirname); | |
200 | ||
201 | /** | |
1ba0de2e BP |
202 | @warning This function is obsolete, please use wxFileName::SplitPath() |
203 | instead. | |
204 | ||
23324ae1 | 205 | This function splits a full file name into components: the path (including |
1ba0de2e BP |
206 | possible disk/drive specification under Windows), the base name, and the |
207 | extension. Any of the output parameters (@a path, @a name or @a ext) may be | |
208 | @NULL if you are not interested in the value of a particular component. | |
209 | ||
23324ae1 | 210 | wxSplitPath() will correctly handle filenames with both DOS and Unix path |
1ba0de2e BP |
211 | separators under Windows, however it will not consider backslashes as path |
212 | separators under Unix (where backslash is a valid character in a filename). | |
213 | ||
4cc4bfaf | 214 | On entry, @a fullname should be non-@NULL (it may be empty though). |
23324ae1 | 215 | |
1ba0de2e BP |
216 | On return, @a path contains the file path (without the trailing separator), |
217 | @a name contains the file name and @c ext contains the file extension | |
218 | without leading dot. All three of them may be empty if the corresponding | |
219 | component is. The old contents of the strings pointed to by these | |
220 | parameters will be overwritten in any case (if the pointers are not @NULL). | |
221 | ||
222 | @header{wx/filefn.h} | |
23324ae1 | 223 | */ |
1ba0de2e BP |
224 | void wxSplitPath(const wxString& fullname, |
225 | wxString* path, | |
226 | wxString* name, | |
227 | wxString* ext); | |
23324ae1 FM |
228 | |
229 | /** | |
230 | Returns time of last modification of given file. | |
23324ae1 | 231 | |
1ba0de2e BP |
232 | The function returns <tt>(time_t)-1</tt> if an error occurred (e.g. file |
233 | not found). | |
234 | ||
235 | @header{wx/filefn.h} | |
23324ae1 | 236 | */ |
1ba0de2e | 237 | time_t wxFileModificationTime(const wxString& filename); |
23324ae1 FM |
238 | |
239 | /** | |
4cc4bfaf | 240 | Renames @a file1 to @e file2, returning @true if successful. |
1ba0de2e | 241 | |
4cc4bfaf | 242 | If @a overwrite parameter is @true (default), the destination file is |
1ba0de2e BP |
243 | overwritten if it exists, but if @a overwrite is @false, the functions |
244 | fails in this case. | |
245 | ||
246 | @header{wx/filefn.h} | |
23324ae1 | 247 | */ |
1ba0de2e BP |
248 | bool wxRenameFile(const wxString& file1, |
249 | const wxString& file2, | |
250 | bool overwrite = true); | |
23324ae1 FM |
251 | |
252 | /** | |
1ba0de2e BP |
253 | Copies @a file1 to @e file2, returning @true if successful. If @a overwrite |
254 | parameter is @true (default), the destination file is overwritten if it | |
255 | exists, but if @a overwrite is @false, the functions fails in this case. | |
256 | ||
23324ae1 | 257 | This function supports resources forks under Mac OS. |
1ba0de2e BP |
258 | |
259 | @header{wx/filefn.h} | |
23324ae1 | 260 | */ |
1ba0de2e BP |
261 | bool wxCopyFile(const wxString& file1, |
262 | const wxString& file2, | |
263 | bool overwrite = true); | |
23324ae1 FM |
264 | |
265 | /** | |
266 | Returns @true if the file exists and is a plain file. | |
1ba0de2e BP |
267 | |
268 | @header{wx/filefn.h} | |
23324ae1 FM |
269 | */ |
270 | bool wxFileExists(const wxString& filename); | |
271 | ||
272 | /** | |
1ba0de2e BP |
273 | Returns @true if the @a pattern matches the @e text; if @a dot_special is |
274 | @true, filenames beginning with a dot are not matched with wildcard | |
275 | characters. | |
276 | ||
277 | @see wxIsWild() | |
278 | ||
279 | @header{wx/filefn.h} | |
23324ae1 | 280 | */ |
1ba0de2e BP |
281 | bool wxMatchWild(const wxString& pattern, |
282 | const wxString& text, | |
283 | bool dot_special); | |
23324ae1 FM |
284 | |
285 | /** | |
1ba0de2e BP |
286 | @warning This function is deprecated, use wxGetCwd() instead. |
287 | ||
288 | Copies the current working directory into the buffer if supplied, or copies | |
289 | the working directory into new storage (which you must delete yourself) if | |
290 | the buffer is @NULL. | |
291 | ||
4cc4bfaf | 292 | @a sz is the size of the buffer if supplied. |
1ba0de2e BP |
293 | |
294 | @header{wx/filefn.h} | |
23324ae1 | 295 | */ |
4cc4bfaf | 296 | wxString wxGetWorkingDirectory(char* buf = NULL, int sz = 1000); |
23324ae1 FM |
297 | |
298 | /** | |
299 | Returns the directory part of the filename. | |
1ba0de2e BP |
300 | |
301 | @header{wx/filefn.h} | |
23324ae1 FM |
302 | */ |
303 | wxString wxPathOnly(const wxString& path); | |
304 | ||
305 | /** | |
1ba0de2e BP |
306 | Returns @true if the pattern contains wildcards. |
307 | ||
308 | @see wxMatchWild() | |
309 | ||
310 | @header{wx/filefn.h} | |
23324ae1 FM |
311 | */ |
312 | bool wxIsWild(const wxString& pattern); | |
313 | ||
1ba0de2e BP |
314 | /** |
315 | Returns @true if the argument is an absolute filename, i.e. with a slash | |
316 | or drive name at the beginning. | |
317 | ||
318 | @header{wx/filefn.h} | |
319 | */ | |
320 | bool wxIsAbsolutePath(const wxString& filename); | |
321 | ||
23324ae1 FM |
322 | /** |
323 | Returns a string containing the current (or working) directory. | |
1ba0de2e BP |
324 | |
325 | @header{wx/filefn.h} | |
23324ae1 FM |
326 | */ |
327 | wxString wxGetCwd(); | |
328 | ||
329 | /** | |
1ba0de2e BP |
330 | Sets the current working directory, returning @true if the operation |
331 | succeeded. Under MS Windows, the current drive is also changed if @a dir | |
332 | contains a drive specification. | |
333 | ||
334 | @header{wx/filefn.h} | |
23324ae1 | 335 | */ |
1ba0de2e | 336 | bool wxSetWorkingDirectory(const wxString& dir); |
23324ae1 FM |
337 | |
338 | /** | |
1ba0de2e BP |
339 | Concatenates @a file1 and @a file2 to @e file3, returning @true if |
340 | successful. | |
341 | ||
342 | @header{wx/filefn.h} | |
23324ae1 | 343 | */ |
1ba0de2e BP |
344 | bool wxConcatFiles(const wxString& file1, |
345 | const wxString& file2, | |
346 | const wxString& file3); | |
23324ae1 FM |
347 | |
348 | /** | |
349 | Removes @e file, returning @true if successful. | |
1ba0de2e BP |
350 | |
351 | @header{wx/filefn.h} | |
23324ae1 FM |
352 | */ |
353 | bool wxRemoveFile(const wxString& file); | |
354 | ||
355 | /** | |
1ba0de2e | 356 | Makes the directory @a dir, returning @true if successful. |
23324ae1 | 357 | |
4cc4bfaf | 358 | @a perm is the access mask for the directory for the systems on which it is |
23324ae1 | 359 | supported (Unix) and doesn't have any effect on the other ones. |
1ba0de2e BP |
360 | |
361 | @header{wx/filefn.h} | |
23324ae1 FM |
362 | */ |
363 | bool wxMkdir(const wxString& dir, int perm = 0777); | |
364 | ||
365 | /** | |
1ba0de2e BP |
366 | Removes the directory @a dir, returning @true if successful. Does not work |
367 | under VMS. | |
368 | ||
369 | The @a flags parameter is reserved for future use. | |
370 | ||
371 | @note There is also a wxRmDir() function which simply wraps the standard | |
372 | POSIX @c rmdir() function and so return an integer error code instead | |
373 | of a boolean value (but otherwise is currently identical to | |
374 | wxRmdir()), don't confuse these two functions. | |
375 | ||
376 | @header{wx/filefn.h} | |
23324ae1 | 377 | */ |
1ba0de2e | 378 | bool wxRmdir(const wxString& dir, int flags = 0); |
23324ae1 FM |
379 | |
380 | /** | |
e54c96f1 | 381 | Returns the next file that matches the path passed to wxFindFirstFile(). |
1ba0de2e | 382 | |
e54c96f1 | 383 | See wxFindFirstFile() for an example. |
1ba0de2e BP |
384 | |
385 | @header{wx/filefn.h} | |
23324ae1 FM |
386 | */ |
387 | wxString wxFindNextFile(); | |
388 | ||
389 | /** | |
1ba0de2e BP |
390 | This function does directory searching; returns the first file that matches |
391 | the path @a spec, or the empty string. Use wxFindNextFile() to get the next | |
392 | matching file. Neither will report the current directory "." or the parent | |
393 | directory "..". | |
394 | ||
395 | @warning As of 2.5.2, these functions are not thread-safe! (they use static | |
396 | variables). You probably want to use wxDir::GetFirst() or | |
397 | wxDirTraverser instead. | |
398 | ||
399 | @a spec may contain wildcards. | |
400 | ||
401 | @a flags may be wxDIR for restricting the query to directories, wxFILE for | |
402 | files or zero for either. | |
403 | ||
404 | For example: | |
405 | ||
406 | @code | |
407 | wxString f = wxFindFirstFile("/home/project/*.*"); | |
408 | while ( !f.empty() ) | |
409 | { | |
410 | ... | |
411 | f = wxFindNextFile(); | |
412 | } | |
413 | @endcode | |
414 | ||
415 | @header{wx/filefn.h} | |
23324ae1 FM |
416 | */ |
417 | wxString wxFindFirstFile(const wxString& spec, int flags = 0); | |
418 | ||
1ba0de2e BP |
419 | /** |
420 | File kind enumerations returned from wxGetFileKind(). | |
421 | ||
422 | @header{wx/filefn.h} | |
423 | */ | |
424 | enum wxFileKind | |
425 | { | |
426 | wxFILE_KIND_UNKNOWN, ///< Unknown file kind, or unable to determine | |
427 | wxFILE_KIND_DISK, ///< A file supporting seeking to arbitrary offsets | |
428 | wxFILE_KIND_TERMINAL, ///< A tty | |
429 | wxFILE_KIND_PIPE ///< A pipe | |
430 | }; | |
431 | ||
432 | //@} | |
433 | ||
434 | /** @ingroup group_funcmacro_file */ | |
23324ae1 FM |
435 | //@{ |
436 | /** | |
1ba0de2e BP |
437 | Returns the type of an open file. Possible return values are enumerations |
438 | of ::wxFileKind. | |
4cc4bfaf | 439 | |
1ba0de2e | 440 | @header{wx/filefn.h} |
23324ae1 FM |
441 | */ |
442 | wxFileKind wxGetFileKind(int fd); | |
4cc4bfaf | 443 | wxFileKind wxGetFileKind(FILE* fp); |
23324ae1 FM |
444 | //@} |
445 | ||
1ba0de2e | 446 | /** @ingroup group_funcmacro_file */ |
23324ae1 FM |
447 | //@{ |
448 | /** | |
1ba0de2e BP |
449 | @warning This function is obsolete, please use wxFileName::SplitPath() |
450 | instead. | |
451 | ||
452 | Returns the filename for a full path. The second form returns a pointer to | |
453 | temporary storage that should not be deallocated. | |
454 | ||
455 | @header{wx/filefn.h} | |
23324ae1 | 456 | */ |
1ba0de2e BP |
457 | wxString wxFileNameFromPath(const wxString& path); |
458 | char* wxFileNameFromPath(char* path); | |
23324ae1 FM |
459 | //@} |
460 | ||
1ba0de2e BP |
461 | /** @ingroup group_funcmacro_file */ |
462 | //@{ | |
23324ae1 | 463 | /** |
1ba0de2e BP |
464 | @warning This function is obsolete, please use |
465 | wxFileName::CreateTempFileName() instead. | |
466 | ||
467 | @header{wx/filefn.h} | |
23324ae1 | 468 | */ |
1ba0de2e BP |
469 | char* wxGetTempFileName(const wxString& prefix, char* buf = NULL); |
470 | bool wxGetTempFileName(const wxString& prefix, wxString& buf); | |
471 | //@} | |
23324ae1 | 472 |