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Add wxEventFilter and related functionality.
[wxWidgets.git] / include / wx / filefn.h
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1/////////////////////////////////////////////////////////////////////////////
2// Name: wx/filefn.h
3// Purpose: File- and directory-related functions
4// Author: Julian Smart
5// Modified by:
6// Created: 29/01/98
7// RCS-ID: $Id$
8// Copyright: (c) 1998 Julian Smart
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12#ifndef _FILEFN_H_
13#define _FILEFN_H_
14
15#include "wx/list.h"
16#include "wx/arrstr.h"
17
18#ifndef __WXPALMOS5__
19#ifdef __WXWINCE__
20 #include "wx/msw/wince/time.h"
21 #include "wx/msw/private.h"
22#else
23 #include <time.h>
24#endif
25
26#ifdef __WXWINCE__
27// Nothing
28#elif !defined(__MWERKS__)
29 #include <sys/types.h>
30 #include <sys/stat.h>
31#else
32 #ifdef __MACH__
33 #include <sys/types.h>
34 #include <utime.h>
35 #include <sys/stat.h>
36 #include <unistd.h>
37 #else
38 #include <stat.h>
39 #include <unistd.h>
40 #include <unix.h>
41 #endif
42#endif
43#endif // !__WXPALMOS5__
44
45#ifdef __OS2__
46// need to check for __OS2__ first since currently both
47// __OS2__ and __UNIX__ are defined.
48 #include <process.h>
49 #include "wx/os2/private.h"
50 #ifdef __WATCOMC__
51 #include <direct.h>
52 #endif
53 #include <io.h>
54 #ifdef __EMX__
55 #include <unistd.h>
56 #endif
57#elif defined(__UNIX__)
58 #include <unistd.h>
59 #include <dirent.h>
60#endif
61
62#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
63#if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__WXWINCE__) && !defined(__CYGWIN__)
64 #include <direct.h>
65 #include <dos.h>
66 #include <io.h>
67#endif // __WINDOWS__
68#endif // native Win compiler
69
70#if defined(__DOS__)
71 #ifdef __WATCOMC__
72 #include <direct.h>
73 #include <dos.h>
74 #include <io.h>
75 #endif
76 #ifdef __DJGPP__
77 #include <io.h>
78 #include <unistd.h>
79 #endif
80#endif
81
82#ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
83 // this (3.1 I believe) and how to test for it.
84 // If this works for Borland 4.0 as well, then no worries.
85 #include <dir.h>
86#endif
87
88#ifndef __WXPALMOS5__
89#ifndef __WXWINCE__
90 #include <fcntl.h> // O_RDONLY &c
91#endif
92#endif // !__WXPALMOS5__
93// ----------------------------------------------------------------------------
94// constants
95// ----------------------------------------------------------------------------
96
97#if defined(__VISUALC__) || defined(__DIGITALMARS__)
98 typedef int mode_t;
99#endif
100
101#ifdef __WXWINCE__
102 typedef long off_t;
103#else
104 // define off_t
105 #if !defined(__WXMAC__) || defined(__UNIX__) || defined(__MACH__)
106 #include <sys/types.h>
107 #else
108 typedef long off_t;
109 #endif
110#endif
111
112#if (defined(__VISUALC__) && !defined(__WXWINCE__)) || ( defined(__MWERKS__) && defined( __INTEL__) )
113 typedef _off_t off_t;
114#elif defined(__SYMANTEC__)
115 typedef long off_t;
116#elif defined(__MWERKS__) && !defined(__INTEL__) && !defined(__MACH__)
117 typedef long off_t;
118#elif defined(__WXPALMOS5__)
119 typedef long off_t;
120#endif
121
122enum wxSeekMode
123{
124 wxFromStart,
125 wxFromCurrent,
126 wxFromEnd
127};
128
129enum wxFileKind
130{
131 wxFILE_KIND_UNKNOWN,
132 wxFILE_KIND_DISK, // a file supporting seeking to arbitrary offsets
133 wxFILE_KIND_TERMINAL, // a tty
134 wxFILE_KIND_PIPE // a pipe
135};
136
137// we redefine these constants here because S_IREAD &c are _not_ standard
138// however, we do assume that the values correspond to the Unix umask bits
139enum wxPosixPermissions
140{
141 // standard Posix names for these permission flags:
142 wxS_IRUSR = 00400,
143 wxS_IWUSR = 00200,
144 wxS_IXUSR = 00100,
145
146 wxS_IRGRP = 00040,
147 wxS_IWGRP = 00020,
148 wxS_IXGRP = 00010,
149
150 wxS_IROTH = 00004,
151 wxS_IWOTH = 00002,
152 wxS_IXOTH = 00001,
153
154 // longer but more readable synonyms for the constants above:
155 wxPOSIX_USER_READ = wxS_IRUSR,
156 wxPOSIX_USER_WRITE = wxS_IWUSR,
157 wxPOSIX_USER_EXECUTE = wxS_IXUSR,
158
159 wxPOSIX_GROUP_READ = wxS_IRGRP,
160 wxPOSIX_GROUP_WRITE = wxS_IWGRP,
161 wxPOSIX_GROUP_EXECUTE = wxS_IXGRP,
162
163 wxPOSIX_OTHERS_READ = wxS_IROTH,
164 wxPOSIX_OTHERS_WRITE = wxS_IWOTH,
165 wxPOSIX_OTHERS_EXECUTE = wxS_IXOTH,
166
167 // default mode for the new files: allow reading/writing them to everybody but
168 // the effective file mode will be set after anding this value with umask and
169 // so won't include wxS_IW{GRP,OTH} for the default 022 umask value
170 wxS_DEFAULT = (wxPOSIX_USER_READ | wxPOSIX_USER_WRITE | \
171 wxPOSIX_GROUP_READ | wxPOSIX_GROUP_WRITE | \
172 wxPOSIX_OTHERS_READ | wxPOSIX_OTHERS_WRITE),
173
174 // default mode for the new directories (see wxFileName::Mkdir): allow
175 // reading/writing/executing them to everybody, but just like wxS_DEFAULT
176 // the effective directory mode will be set after anding this value with umask
177 wxS_DIR_DEFAULT = (wxPOSIX_USER_READ | wxPOSIX_USER_WRITE | wxPOSIX_USER_EXECUTE | \
178 wxPOSIX_GROUP_READ | wxPOSIX_GROUP_WRITE | wxPOSIX_GROUP_EXECUTE | \
179 wxPOSIX_OTHERS_READ | wxPOSIX_OTHERS_WRITE | wxPOSIX_OTHERS_EXECUTE)
180};
181
182// ----------------------------------------------------------------------------
183// declare our versions of low level file functions: some compilers prepend
184// underscores to the usual names, some also have Unicode versions of them
185// ----------------------------------------------------------------------------
186
187// Wrappers around Win32 api functions like CreateFile, ReadFile and such
188// Implemented in filefnwce.cpp
189#if defined( __WXWINCE__)
190 typedef __int64 wxFileOffset;
191 #define wxFileOffsetFmtSpec wxT("I64")
192 WXDLLIMPEXP_BASE int wxCRT_Open(const wxChar *filename, int oflag, int WXUNUSED(pmode));
193 WXDLLIMPEXP_BASE int wxCRT_Access(const wxChar *name, int WXUNUSED(how));
194 WXDLLIMPEXP_BASE int wxClose(int fd);
195 WXDLLIMPEXP_BASE int wxFsync(int WXUNUSED(fd));
196 WXDLLIMPEXP_BASE int wxRead(int fd, void *buf, unsigned int count);
197 WXDLLIMPEXP_BASE int wxWrite(int fd, const void *buf, unsigned int count);
198 WXDLLIMPEXP_BASE int wxEof(int fd);
199 WXDLLIMPEXP_BASE wxFileOffset wxSeek(int fd, wxFileOffset offset, int origin);
200 #define wxLSeek wxSeek
201 WXDLLIMPEXP_BASE wxFileOffset wxTell(int fd);
202
203 // always Unicode under WinCE
204 #define wxCRT_MkDir _wmkdir
205 #define wxCRT_RmDir _wrmdir
206 #define wxCRT_Stat _wstat
207 #define wxStructStat struct _stat
208#elif (defined(__WXMSW__) || defined(__OS2__)) && !defined(__WXPALMOS__) && \
209 ( \
210 defined(__VISUALC__) || \
211 defined(__MINGW64__) || \
212 (defined(__MINGW32__) && !defined(__WINE__) && \
213 wxCHECK_W32API_VERSION(0, 5)) || \
214 defined(__MWERKS__) || \
215 defined(__DMC__) || \
216 defined(__WATCOMC__) || \
217 defined(__BORLANDC__) \
218 )
219
220 // temporary defines just used immediately below
221 #undef wxHAS_HUGE_FILES
222 #undef wxHAS_HUGE_STDIO_FILES
223
224 // detect compilers which have support for huge files
225 #if defined(__VISUALC__)
226 #define wxHAS_HUGE_FILES 1
227 #elif defined(__MINGW32__) || defined(__MINGW64__)
228 #define wxHAS_HUGE_FILES 1
229 #elif defined(_LARGE_FILES)
230 #define wxHAS_HUGE_FILES 1
231 #endif
232
233 // detect compilers which have support for huge stdio files
234 #if wxCHECK_VISUALC_VERSION(8)
235 #define wxHAS_HUGE_STDIO_FILES
236 #define wxFseek _fseeki64
237 #define wxFtell _ftelli64
238 #elif wxCHECK_MINGW32_VERSION(3, 5) // mingw-runtime version (not gcc)
239 #define wxHAS_HUGE_STDIO_FILES
240 #define wxFseek fseeko64
241 #define wxFtell ftello64
242 #endif
243
244 // other Windows compilers (DMC, Watcom, Metrowerks and Borland) don't have
245 // huge file support (or at least not all functions needed for it by wx)
246 // currently
247
248 // types
249
250 #ifdef wxHAS_HUGE_FILES
251 typedef wxLongLong_t wxFileOffset;
252 #define wxFileOffsetFmtSpec wxLongLongFmtSpec
253 #else
254 typedef off_t wxFileOffset;
255 #endif
256
257 // at least Borland 5.5 doesn't like "struct ::stat" so don't use the scope
258 // resolution operator present in wxPOSIX_IDENT for it
259 #ifdef __BORLANDC__
260 #define wxPOSIX_STRUCT(s) struct s
261 #else
262 #define wxPOSIX_STRUCT(s) struct wxPOSIX_IDENT(s)
263 #endif
264
265 // Notice that Watcom is the only compiler to have a wide char
266 // version of struct stat as well as a wide char stat function variant.
267 // This was dropped since OW 1.4 "for consistency across platforms".
268 //
269 // Borland is also special in that it uses _stat with Unicode functions
270 // (for MSVC compatibility?) but stat with ANSI ones
271 #ifdef __BORLANDC__
272 #if wxHAS_HUGE_FILES
273 #define wxStructStat struct stati64
274 #else
275 #if wxUSE_UNICODE
276 #define wxStructStat struct _stat
277 #else
278 #define wxStructStat struct stat
279 #endif
280 #endif
281 #else // !__BORLANDC__
282 #ifdef wxHAS_HUGE_FILES
283 #if wxUSE_UNICODE && wxONLY_WATCOM_EARLIER_THAN(1,4)
284 #define wxStructStat struct _wstati64
285 #else
286 #define wxStructStat struct _stati64
287 #endif
288 #else
289 #if wxUSE_UNICODE && wxONLY_WATCOM_EARLIER_THAN(1,4)
290 #define wxStructStat struct _wstat
291 #else
292 #define wxStructStat struct _stat
293 #endif
294 #endif
295 #endif // __BORLANDC__/!__BORLANDC__
296
297
298 // functions
299
300 // MSVC and compatible compilers prepend underscores to the POSIX function
301 // names, other compilers don't and even if their later versions usually do
302 // define the versions with underscores for MSVC compatibility, it's better
303 // to avoid using them as they're not present in earlier versions and
304 // always using the native functions spelling is easier than testing for
305 // the versions
306 #if defined(__BORLANDC__) || defined(__DMC__) || defined(__WATCOMC__) || defined(__MINGW64__)
307 #define wxPOSIX_IDENT(func) ::func
308 #else // by default assume MSVC-compatible names
309 #define wxPOSIX_IDENT(func) _ ## func
310 #define wxHAS_UNDERSCORES_IN_POSIX_IDENTS
311 #endif
312
313 // first functions not working with strings, i.e. without ANSI/Unicode
314 // complications
315 #define wxClose wxPOSIX_IDENT(close)
316
317 #if defined(__MWERKS__)
318 #if __MSL__ >= 0x6000
319 #define wxRead(fd, buf, nCount) _read(fd, (void *)buf, nCount)
320 #define wxWrite(fd, buf, nCount) _write(fd, (void *)buf, nCount)
321 #else
322 #define wxRead(fd, buf, nCount)\
323 _read(fd, (const char *)buf, nCount)
324 #define wxWrite(fd, buf, nCount)\
325 _write(fd, (const char *)buf, nCount)
326 #endif
327 #else // __MWERKS__
328 #define wxRead wxPOSIX_IDENT(read)
329 #define wxWrite wxPOSIX_IDENT(write)
330 #endif
331
332 #ifdef wxHAS_HUGE_FILES
333 #ifndef __MINGW64__
334 #define wxSeek wxPOSIX_IDENT(lseeki64)
335 #define wxLseek wxPOSIX_IDENT(lseeki64)
336 #define wxTell wxPOSIX_IDENT(telli64)
337 #else
338 // unfortunately, mingw-W64 is somewhat inconsistent...
339 #define wxSeek _lseeki64
340 #define wxLseek _lseeki64
341 #define wxTell _telli64
342 #endif
343 #else // !wxHAS_HUGE_FILES
344 #define wxSeek wxPOSIX_IDENT(lseek)
345 #define wxLseek wxPOSIX_IDENT(lseek)
346 #define wxTell wxPOSIX_IDENT(tell)
347 #endif // wxHAS_HUGE_FILES/!wxHAS_HUGE_FILES
348
349 #ifndef __WATCOMC__
350 #if !defined(__BORLANDC__) || (__BORLANDC__ > 0x540)
351 // NB: this one is not POSIX and always has the underscore
352 #define wxFsync _commit
353
354 // could be already defined by configure (Cygwin)
355 #ifndef HAVE_FSYNC
356 #define HAVE_FSYNC
357 #endif
358 #endif // BORLANDC
359 #endif
360
361 #define wxEof wxPOSIX_IDENT(eof)
362
363 // then the functions taking strings
364
365 // first the ANSI versions
366 #define wxCRT_OpenA wxPOSIX_IDENT(open)
367 #define wxCRT_AccessA wxPOSIX_IDENT(access)
368 #define wxCRT_MkDirA wxPOSIX_IDENT(mkdir)
369 #define wxCRT_RmDirA wxPOSIX_IDENT(rmdir)
370 #ifdef wxHAS_HUGE_FILES
371 // MinGW-64 provides underscore-less versions of all file functions
372 // except for this one.
373 #ifdef __MINGW64__
374 #define wxCRT_StatA _stati64
375 #else
376 #define wxCRT_StatA wxPOSIX_IDENT(stati64)
377 #endif
378 #else
379 // Unfortunately Watcom is not consistent
380 #if defined(__OS2__) && defined(__WATCOMC__)
381 #define wxCRT_StatA _stat
382 #else
383 #define wxCRT_StatA wxPOSIX_IDENT(stat)
384 #endif
385 #endif
386
387 // then wide char ones
388 #if wxUSE_UNICODE
389 // special workaround for buggy wopen() in bcc 5.5
390 #if defined(__BORLANDC__) && \
391 (__BORLANDC__ >= 0x550 && __BORLANDC__ <= 0x551)
392 WXDLLIMPEXP_BASE int wxCRT_OpenW(const wxChar *pathname,
393 int flags, mode_t mode);
394 #else
395 #define wxCRT_OpenW _wopen
396 #endif
397
398 #define wxCRT_AccessW _waccess
399 #define wxCRT_MkDirW _wmkdir
400 #define wxCRT_RmDirW _wrmdir
401 #ifdef wxHAS_HUGE_FILES
402 #define wxCRT_StatW _wstati64
403 #else
404 #define wxCRT_StatW _wstat
405 #endif
406 #endif // wxUSE_UNICODE
407
408
409 // finally the default char-type versions
410 #if wxUSE_UNICODE
411 #if wxUSE_UNICODE_MSLU || defined(__WX_STRICT_ANSI_GCC__)
412 // implement the missing file functions in Win9x ourselves
413 WXDLLIMPEXP_BASE int wxMSLU__wopen(const wxChar *name,
414 int flags, int mode);
415 WXDLLIMPEXP_BASE int wxMSLU__waccess(const wxChar *name,
416 int mode);
417 WXDLLIMPEXP_BASE int wxMSLU__wmkdir(const wxChar *name);
418 WXDLLIMPEXP_BASE int wxMSLU__wrmdir(const wxChar *name);
419
420 WXDLLIMPEXP_BASE int
421 wxMSLU__wstat(const wxChar *name, wxStructStat *buffer);
422
423 #define wxCRT_Open wxMSLU__wopen
424
425 #define wxCRT_Access wxMSLU__waccess
426 #define wxCRT_MkDir wxMSLU__wmkdir
427 #define wxCRT_RmDir wxMSLU__wrmdir
428 #define wxCRT_Stat wxMSLU__wstat
429 #else // !wxUSE_UNICODE_MSLU
430 #define wxCRT_Open wxCRT_OpenW
431 #define wxCRT_Access wxCRT_AccessW
432 #define wxCRT_MkDir wxCRT_MkDirW
433 #define wxCRT_RmDir wxCRT_RmDirW
434 #define wxCRT_Stat wxCRT_StatW
435 #endif // wxUSE_UNICODE_MSLU/!wxUSE_UNICODE_MSLU
436 #else // !wxUSE_UNICODE
437 #define wxCRT_Open wxCRT_OpenA
438 #define wxCRT_Access wxCRT_AccessA
439 #define wxCRT_MkDir wxCRT_MkDirA
440 #define wxCRT_RmDir wxCRT_RmDirA
441 #define wxCRT_Stat wxCRT_StatA
442 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
443
444
445 // constants (unless already defined by the user code)
446 #ifdef wxHAS_UNDERSCORES_IN_POSIX_IDENTS
447 #ifndef O_RDONLY
448 #define O_RDONLY _O_RDONLY
449 #define O_WRONLY _O_WRONLY
450 #define O_RDWR _O_RDWR
451 #define O_EXCL _O_EXCL
452 #define O_CREAT _O_CREAT
453 #define O_BINARY _O_BINARY
454 #endif
455
456 #ifndef S_IFMT
457 #define S_IFMT _S_IFMT
458 #define S_IFDIR _S_IFDIR
459 #define S_IFREG _S_IFREG
460 #endif
461 #endif // wxHAS_UNDERSCORES_IN_POSIX_IDENTS
462
463 #ifdef wxHAS_HUGE_FILES
464 // wxFile is present and supports large files.
465 #if wxUSE_FILE
466 #define wxHAS_LARGE_FILES
467 #endif
468 // wxFFile is present and supports large files
469 #if wxUSE_FFILE && defined wxHAS_HUGE_STDIO_FILES
470 #define wxHAS_LARGE_FFILES
471 #endif
472 #endif
473
474 // private defines, undefine so that nobody gets tempted to use
475 #undef wxHAS_HUGE_FILES
476 #undef wxHAS_HUGE_STDIO_FILES
477#elif defined (__WXPALMOS__)
478 typedef off_t wxFileOffset;
479#ifdef _LARGE_FILES
480 #define wxFileOffsetFmtSpec wxLongLongFmtSpec
481 wxCOMPILE_TIME_ASSERT( sizeof(off_t) == sizeof(wxLongLong_t), BadFileSizeType );
482 // wxFile is present and supports large files
483 #ifdef wxUSE_FILE
484 #define wxHAS_LARGE_FILES
485 #endif
486 // wxFFile is present and supports large files
487 #if SIZEOF_LONG == 8 || defined HAVE_FSEEKO
488 #define wxHAS_LARGE_FFILES
489 #endif
490#else
491 #define wxFileOffsetFmtSpec wxT("")
492#endif
493 #define wxClose close
494 #define wxRead ::read
495 #define wxWrite ::write
496 #define wxLseek lseek
497 #define wxSeek lseek
498 #define wxFsync fsync
499 #define wxEof eof
500
501 #define wxCRT_MkDir mkdir
502 #define wxCRT_RmDir rmdir
503
504 #define wxTell(fd) lseek(fd, 0, SEEK_CUR)
505
506 #define wxStructStat struct stat
507
508 #define wxCRT_Open open
509 #define wxCRT_Stat svfs_stat
510 #define wxCRT_Lstat lstat
511 #define wxCRT_Access access
512
513 #define wxHAS_NATIVE_LSTAT
514#else // Unix or Windows using unknown compiler, assume POSIX supported
515 typedef off_t wxFileOffset;
516 #ifdef HAVE_LARGEFILE_SUPPORT
517 #define wxFileOffsetFmtSpec wxLongLongFmtSpec
518 wxCOMPILE_TIME_ASSERT( sizeof(off_t) == sizeof(wxLongLong_t),
519 BadFileSizeType );
520 // wxFile is present and supports large files
521 #if wxUSE_FILE
522 #define wxHAS_LARGE_FILES
523 #endif
524 // wxFFile is present and supports large files
525 #if wxUSE_FFILE && (SIZEOF_LONG == 8 || defined HAVE_FSEEKO)
526 #define wxHAS_LARGE_FFILES
527 #endif
528 #ifdef HAVE_FSEEKO
529 #define wxFseek fseeko
530 #define wxFtell ftello
531 #endif
532 #else
533 #define wxFileOffsetFmtSpec wxT("")
534 #endif
535 // functions
536 #define wxClose close
537 #define wxRead ::read
538 #define wxWrite ::write
539 #define wxLseek lseek
540 #define wxSeek lseek
541 #define wxFsync fsync
542 #define wxEof eof
543
544 #define wxCRT_MkDir mkdir
545 #define wxCRT_RmDir rmdir
546
547 #define wxTell(fd) lseek(fd, 0, SEEK_CUR)
548
549 #define wxStructStat struct stat
550
551 #define wxCRT_Open open
552 #define wxCRT_Stat stat
553 #define wxCRT_Lstat lstat
554 #define wxCRT_Access access
555
556 #define wxHAS_NATIVE_LSTAT
557#endif // platforms
558
559// if the platform doesn't have symlinks, define wxCRT_Lstat to be the same as
560// wxCRT_Stat to avoid #ifdefs in the code using it
561#ifndef wxHAS_NATIVE_LSTAT
562 #define wxCRT_Lstat wxCRT_Stat
563#endif
564
565// define wxFseek/wxFtell to large file versions if available (done above) or
566// to fseek/ftell if not, to save ifdefs in using code
567#ifndef wxFseek
568 #define wxFseek fseek
569#endif
570#ifndef wxFtell
571 #define wxFtell ftell
572#endif
573
574inline int wxAccess(const wxString& path, mode_t mode)
575 { return wxCRT_Access(path.fn_str(), mode); }
576inline int wxOpen(const wxString& path, int flags, mode_t mode)
577 { return wxCRT_Open(path.fn_str(), flags, mode); }
578
579// FIXME-CE: provide our own implementations of the missing CRT functions
580#ifndef __WXWINCE__
581inline int wxStat(const wxString& path, wxStructStat *buf)
582 { return wxCRT_Stat(path.fn_str(), buf); }
583inline int wxLstat(const wxString& path, wxStructStat *buf)
584 { return wxCRT_Lstat(path.fn_str(), buf); }
585inline int wxRmDir(const wxString& path)
586 { return wxCRT_RmDir(path.fn_str()); }
587#if (defined(__WINDOWS__) && !defined(__CYGWIN__)) \
588 || (defined(__OS2__) && defined(__WATCOMC__))
589inline int wxMkDir(const wxString& path, mode_t WXUNUSED(mode) = 0)
590 { return wxCRT_MkDir(path.fn_str()); }
591#else
592inline int wxMkDir(const wxString& path, mode_t mode)
593 { return wxCRT_MkDir(path.fn_str(), mode); }
594#endif
595#endif // !__WXWINCE__
596
597#ifdef O_BINARY
598 #define wxO_BINARY O_BINARY
599#else
600 #define wxO_BINARY 0
601#endif
602
603#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
604//
605// VisualAge C++ V4.0 cannot have any external linkage const decs
606// in headers included by more than one primary source
607//
608extern const int wxInvalidOffset;
609#else
610const int wxInvalidOffset = -1;
611#endif
612
613// ----------------------------------------------------------------------------
614// functions
615// ----------------------------------------------------------------------------
616WXDLLIMPEXP_BASE bool wxFileExists(const wxString& filename);
617
618// does the path exist? (may have or not '/' or '\\' at the end)
619WXDLLIMPEXP_BASE bool wxDirExists(const wxString& pathName);
620
621WXDLLIMPEXP_BASE bool wxIsAbsolutePath(const wxString& filename);
622
623// Get filename
624WXDLLIMPEXP_BASE wxChar* wxFileNameFromPath(wxChar *path);
625WXDLLIMPEXP_BASE wxString wxFileNameFromPath(const wxString& path);
626
627// Get directory
628WXDLLIMPEXP_BASE wxString wxPathOnly(const wxString& path);
629
630// all deprecated functions below are deprecated in favour of wxFileName's methods
631#if WXWIN_COMPATIBILITY_2_8
632
633wxDEPRECATED( WXDLLIMPEXP_BASE void wxDos2UnixFilename(char *s) );
634wxDEPRECATED( WXDLLIMPEXP_BASE void wxDos2UnixFilename(wchar_t *s) );
635
636wxDEPRECATED_BUT_USED_INTERNALLY(
637 WXDLLIMPEXP_BASE void wxUnix2DosFilename(char *s) );
638wxDEPRECATED_BUT_USED_INTERNALLY(
639 WXDLLIMPEXP_BASE void wxUnix2DosFilename(wchar_t *s) );
640
641// Strip the extension, in situ
642// Deprecated in favour of wxFileName::StripExtension() but notice that their
643// behaviour is slightly different, see the manual
644wxDEPRECATED( WXDLLIMPEXP_BASE void wxStripExtension(char *buffer) );
645wxDEPRECATED( WXDLLIMPEXP_BASE void wxStripExtension(wchar_t *buffer) );
646wxDEPRECATED( WXDLLIMPEXP_BASE void wxStripExtension(wxString& buffer) );
647
648// Get a temporary filename
649wxDEPRECATED_BUT_USED_INTERNALLY( WXDLLIMPEXP_BASE wxChar* wxGetTempFileName(const wxString& prefix, wxChar *buf = NULL) );
650wxDEPRECATED_BUT_USED_INTERNALLY( WXDLLIMPEXP_BASE bool wxGetTempFileName(const wxString& prefix, wxString& buf) );
651
652// Expand file name (~/ and ${OPENWINHOME}/ stuff)
653wxDEPRECATED_BUT_USED_INTERNALLY( WXDLLIMPEXP_BASE char* wxExpandPath(char *dest, const wxString& path) );
654wxDEPRECATED_BUT_USED_INTERNALLY( WXDLLIMPEXP_BASE wchar_t* wxExpandPath(wchar_t *dest, const wxString& path) );
655 // DEPRECATED: use wxFileName::Normalize(wxPATH_NORM_ENV_VARS)
656
657// Contract w.r.t environment (</usr/openwin/lib, OPENWHOME> -> ${OPENWINHOME}/lib)
658// and make (if under the home tree) relative to home
659// [caller must copy-- volatile]
660wxDEPRECATED(
661WXDLLIMPEXP_BASE wxChar* wxContractPath(const wxString& filename,
662 const wxString& envname = wxEmptyString,
663 const wxString& user = wxEmptyString) );
664 // DEPRECATED: use wxFileName::ReplaceEnvVariable and wxFileName::ReplaceHomeDir
665
666// Destructive removal of /./ and /../ stuff
667wxDEPRECATED_BUT_USED_INTERNALLY( WXDLLIMPEXP_BASE char* wxRealPath(char *path) );
668wxDEPRECATED_BUT_USED_INTERNALLY( WXDLLIMPEXP_BASE wchar_t* wxRealPath(wchar_t *path) );
669wxDEPRECATED_BUT_USED_INTERNALLY( WXDLLIMPEXP_BASE wxString wxRealPath(const wxString& path) );
670 // DEPRECATED: use wxFileName::Normalize instead
671
672// Allocate a copy of the full absolute path
673wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* wxCopyAbsolutePath(const wxString& path) );
674 // DEPRECATED: use wxFileName::MakeAbsolute instead
675#endif
676
677// Get first file name matching given wild card.
678// Flags are reserved for future use.
679#define wxFILE 1
680#define wxDIR 2
681WXDLLIMPEXP_BASE wxString wxFindFirstFile(const wxString& spec, int flags = wxFILE);
682WXDLLIMPEXP_BASE wxString wxFindNextFile();
683
684// Does the pattern contain wildcards?
685WXDLLIMPEXP_BASE bool wxIsWild(const wxString& pattern);
686
687// Does the pattern match the text (usually a filename)?
688// If dot_special is true, doesn't match * against . (eliminating
689// `hidden' dot files)
690WXDLLIMPEXP_BASE bool wxMatchWild(const wxString& pattern, const wxString& text, bool dot_special = true);
691
692// Concatenate two files to form third
693WXDLLIMPEXP_BASE bool wxConcatFiles(const wxString& file1, const wxString& file2, const wxString& file3);
694
695// Copy file1 to file2
696WXDLLIMPEXP_BASE bool wxCopyFile(const wxString& file1, const wxString& file2,
697 bool overwrite = true);
698
699// Remove file
700WXDLLIMPEXP_BASE bool wxRemoveFile(const wxString& file);
701
702// Rename file
703WXDLLIMPEXP_BASE bool wxRenameFile(const wxString& file1, const wxString& file2, bool overwrite = true);
704
705// Get current working directory.
706#if WXWIN_COMPATIBILITY_2_6
707// If buf is NULL, allocates space using new, else
708// copies into buf.
709// IMPORTANT NOTE getcwd is know not to work under some releases
710// of Win32s 1.3, according to MS release notes!
711wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* wxGetWorkingDirectory(wxChar *buf = NULL, int sz = 1000) );
712// new and preferred version of wxGetWorkingDirectory
713// NB: can't have the same name because of overloading ambiguity
714#endif // WXWIN_COMPATIBILITY_2_6
715WXDLLIMPEXP_BASE wxString wxGetCwd();
716
717// Set working directory
718WXDLLIMPEXP_BASE bool wxSetWorkingDirectory(const wxString& d);
719
720// Make directory
721WXDLLIMPEXP_BASE bool wxMkdir(const wxString& dir, int perm = wxS_DIR_DEFAULT);
722
723// Remove directory. Flags reserved for future use.
724WXDLLIMPEXP_BASE bool wxRmdir(const wxString& dir, int flags = 0);
725
726// Return the type of an open file
727WXDLLIMPEXP_BASE wxFileKind wxGetFileKind(int fd);
728WXDLLIMPEXP_BASE wxFileKind wxGetFileKind(FILE *fp);
729
730#if WXWIN_COMPATIBILITY_2_6
731// compatibility defines, don't use in new code
732wxDEPRECATED( inline bool wxPathExists(const wxChar *pszPathName) );
733inline bool wxPathExists(const wxChar *pszPathName)
734{
735 return wxDirExists(pszPathName);
736}
737#endif //WXWIN_COMPATIBILITY_2_6
738
739// permissions; these functions work both on files and directories:
740WXDLLIMPEXP_BASE bool wxIsWritable(const wxString &path);
741WXDLLIMPEXP_BASE bool wxIsReadable(const wxString &path);
742WXDLLIMPEXP_BASE bool wxIsExecutable(const wxString &path);
743
744// ----------------------------------------------------------------------------
745// separators in file names
746// ----------------------------------------------------------------------------
747
748// between file name and extension
749#define wxFILE_SEP_EXT wxT('.')
750
751// between drive/volume name and the path
752#define wxFILE_SEP_DSK wxT(':')
753
754// between the path components
755#define wxFILE_SEP_PATH_DOS wxT('\\')
756#define wxFILE_SEP_PATH_UNIX wxT('/')
757#define wxFILE_SEP_PATH_MAC wxT(':')
758#define wxFILE_SEP_PATH_VMS wxT('.') // VMS also uses '[' and ']'
759
760// separator in the path list (as in PATH environment variable)
761// there is no PATH variable in Classic Mac OS so just use the
762// semicolon (it must be different from the file name separator)
763// NB: these are strings and not characters on purpose!
764#define wxPATH_SEP_DOS wxT(";")
765#define wxPATH_SEP_UNIX wxT(":")
766#define wxPATH_SEP_MAC wxT(";")
767
768// platform independent versions
769#if defined(__UNIX__) && !defined(__OS2__)
770 // CYGWIN also uses UNIX settings
771 #define wxFILE_SEP_PATH wxFILE_SEP_PATH_UNIX
772 #define wxPATH_SEP wxPATH_SEP_UNIX
773#elif defined(__WXPALMOS__)
774 #define wxFILE_SEP_PATH wxFILE_SEP_PATH_UNIX
775 #define wxPATH_SEP wxPATH_SEP_UNIX
776#elif defined(__MAC__)
777 #define wxFILE_SEP_PATH wxFILE_SEP_PATH_MAC
778 #define wxPATH_SEP wxPATH_SEP_MAC
779#else // Windows and OS/2
780 #define wxFILE_SEP_PATH wxFILE_SEP_PATH_DOS
781 #define wxPATH_SEP wxPATH_SEP_DOS
782#endif // Unix/Windows
783
784// this is useful for wxString::IsSameAs(): to compare two file names use
785// filename1.IsSameAs(filename2, wxARE_FILENAMES_CASE_SENSITIVE)
786#if defined(__UNIX__) && !defined(__DARWIN__) && !defined(__OS2__)
787 #define wxARE_FILENAMES_CASE_SENSITIVE true
788#else // Windows, Mac OS and OS/2
789 #define wxARE_FILENAMES_CASE_SENSITIVE false
790#endif // Unix/Windows
791
792// is the char a path separator?
793inline bool wxIsPathSeparator(wxChar c)
794{
795 // under DOS/Windows we should understand both Unix and DOS file separators
796#if ( defined(__UNIX__) && !defined(__OS2__) )|| defined(__MAC__)
797 return c == wxFILE_SEP_PATH;
798#else
799 return c == wxFILE_SEP_PATH_DOS || c == wxFILE_SEP_PATH_UNIX;
800#endif
801}
802
803// does the string ends with path separator?
804WXDLLIMPEXP_BASE bool wxEndsWithPathSeparator(const wxString& filename);
805
806#if WXWIN_COMPATIBILITY_2_8
807// split the full path into path (including drive for DOS), name and extension
808// (understands both '/' and '\\')
809// Deprecated in favour of wxFileName::SplitPath
810wxDEPRECATED( WXDLLIMPEXP_BASE void wxSplitPath(const wxString& fileName,
811 wxString *pstrPath,
812 wxString *pstrName,
813 wxString *pstrExt) );
814#endif
815
816// find a file in a list of directories, returns false if not found
817WXDLLIMPEXP_BASE bool wxFindFileInPath(wxString *pStr, const wxString& szPath, const wxString& szFile);
818
819// Get the OS directory if appropriate (such as the Windows directory).
820// On non-Windows platform, probably just return the empty string.
821WXDLLIMPEXP_BASE wxString wxGetOSDirectory();
822
823#if wxUSE_DATETIME
824
825// Get file modification time
826WXDLLIMPEXP_BASE time_t wxFileModificationTime(const wxString& filename);
827
828#endif // wxUSE_DATETIME
829
830// Parses the wildCard, returning the number of filters.
831// Returns 0 if none or if there's a problem,
832// The arrays will contain an equal number of items found before the error.
833// wildCard is in the form:
834// "All files (*)|*|Image Files (*.jpeg *.png)|*.jpg;*.png"
835WXDLLIMPEXP_BASE int wxParseCommonDialogsFilter(const wxString& wildCard, wxArrayString& descriptions, wxArrayString& filters);
836
837// ----------------------------------------------------------------------------
838// classes
839// ----------------------------------------------------------------------------
840
841#ifdef __UNIX__
842
843// set umask to the given value in ctor and reset it to the old one in dtor
844class WXDLLIMPEXP_BASE wxUmaskChanger
845{
846public:
847 // change the umask to the given one if it is not -1: this allows to write
848 // the same code whether you really want to change umask or not, as is in
849 // wxFileConfig::Flush() for example
850 wxUmaskChanger(int umaskNew)
851 {
852 m_umaskOld = umaskNew == -1 ? -1 : (int)umask((mode_t)umaskNew);
853 }
854
855 ~wxUmaskChanger()
856 {
857 if ( m_umaskOld != -1 )
858 umask((mode_t)m_umaskOld);
859 }
860
861private:
862 int m_umaskOld;
863};
864
865// this macro expands to an "anonymous" wxUmaskChanger object under Unix and
866// nothing elsewhere
867#define wxCHANGE_UMASK(m) wxUmaskChanger wxMAKE_UNIQUE_NAME(umaskChanger_)(m)
868
869#else // !__UNIX__
870
871#define wxCHANGE_UMASK(m)
872
873#endif // __UNIX__/!__UNIX__
874
875
876// Path searching
877class WXDLLIMPEXP_BASE wxPathList : public wxArrayString
878{
879public:
880 wxPathList() {}
881 wxPathList(const wxArrayString &arr)
882 { Add(arr); }
883
884 // Adds all paths in environment variable
885 void AddEnvList(const wxString& envVariable);
886
887 // Adds given path to this list
888 bool Add(const wxString& path);
889 void Add(const wxArrayString &paths);
890
891 // Find the first full path for which the file exists
892 wxString FindValidPath(const wxString& filename) const;
893
894 // Find the first full path for which the file exists; ensure it's an
895 // absolute path that gets returned.
896 wxString FindAbsoluteValidPath(const wxString& filename) const;
897
898 // Given full path and filename, add path to list
899 bool EnsureFileAccessible(const wxString& path);
900
901#if WXWIN_COMPATIBILITY_2_6
902 // Returns true if the path is in the list
903 wxDEPRECATED( bool Member(const wxString& path) const );
904#endif
905};
906
907#endif // _WX_FILEFN_H_
wxWidgets (Impactor)