src/common/filename.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/filename.cpp
   3 // Purpose:     wxFileName - encapsulates a file path
   4 // Author:      Robert Roebling, Vadim Zeitlin
   5 // Modified by:
   6 // Created:     28.12.2000
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2000 Robert Roebling
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 /*
  13    Here are brief descriptions of the filename formats supported by this class:
  14
  15    wxPATH_UNIX: standard Unix format, used under Darwin as well, absolute file
  16                 names have the form:
  17                 /dir1/dir2/.../dirN/filename, "." and ".." stand for the
  18                 current and parent directory respectively, "~" is parsed as the
  19                 user HOME and "~username" as the HOME of that user
  20
  21    wxPATH_DOS:  DOS/Windows format, absolute file names have the form:
  22                 drive:\dir1\dir2\...\dirN\filename.ext where drive is a single
  23                 letter. "." and ".." as for Unix but no "~".
  24
  25                 There are also UNC names of the form \\share\fullpath
  26
  27    wxPATH_MAC:  Mac OS 8/9 and Mac OS X under CodeWarrior 7 format, absolute file
  28                 names have the form
  29                     volume:dir1:...:dirN:filename
  30                 and the relative file names are either
  31                     :dir1:...:dirN:filename
  32                 or just
  33                     filename
  34                 (although :filename works as well).
  35                 Since the volume is just part of the file path, it is not
  36                 treated like a separate entity as it is done under DOS and
  37                 VMS, it is just treated as another dir.
  38
  39    wxPATH_VMS:  VMS native format, absolute file names have the form
  40                     <device>:[dir1.dir2.dir3]file.txt
  41                 or
  42                     <device>:[000000.dir1.dir2.dir3]file.txt
  43
  44                 the <device> is the physical device (i.e. disk). 000000 is the
  45                 root directory on the device which can be omitted.
  46
  47                 Note that VMS uses different separators unlike Unix:
  48                  : always after the device. If the path does not contain : than
  49                    the default (the device of the current directory) is assumed.
  50                  [ start of directory specyfication
  51                  . separator between directory and subdirectory
  52                  ] between directory and file
  53  */
  54
  55 // ============================================================================
  56 // declarations
  57 // ============================================================================
  58
  59 // ----------------------------------------------------------------------------
  60 // headers
  61 // ----------------------------------------------------------------------------
  62
  63 #ifdef __GNUG__
  64 #pragma implementation "filename.h"
  65 #endif
  66
  67 // For compilers that support precompilation, includes "wx.h".
  68 #include "wx/wxprec.h"
  69
  70 #ifdef __BORLANDC__
  71 #pragma hdrstop
  72 #endif
  73
  74 #ifndef WX_PRECOMP
  75 #include "wx/intl.h"
  76 #include "wx/log.h"
  77 #include "wx/file.h"
  78 #endif
  79
  80 #include "wx/filename.h"
  81 #include "wx/tokenzr.h"
  82 #include "wx/config.h"          // for wxExpandEnvVars
  83 #include "wx/utils.h"
  84 #include "wx/file.h"
  85 //#include "wx/dynlib.h"        // see GetLongPath below, code disabled.
  86
  87 // For GetShort/LongPathName
  88 #ifdef __WIN32__
  89 #include <windows.h>
  90 #include "wx/msw/winundef.h"
  91 #endif
  92
  93 // utime() is POSIX so should normally be available on all Unices
  94 #ifdef __UNIX_LIKE__
  95 #include <sys/types.h>
  96 #include <utime.h>
  97 #include <sys/stat.h>
  98 #include <unistd.h>
  99 #endif
 100
 101 #ifdef __MWERKS__
 102 #include <stat.h>
 103 #include <unistd.h>
 104 #include <unix.h>
 105 #endif
 106
 107 #ifdef __WATCOMC__
 108 #include <io.h>
 109 #include <sys/utime.h>
 110 #include <sys/stat.h>
 111 #endif
 112
 113 #ifdef __VISAGECPP__
 114 #ifndef MAX_PATH
 115 #define MAX_PATH 256
 116 #endif
 117 #endif
 118
 119 // ----------------------------------------------------------------------------
 120 // private classes
 121 // ----------------------------------------------------------------------------
 122
 123 // small helper class which opens and closes the file - we use it just to get
 124 // a file handle for the given file name to pass it to some Win32 API function
 125 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 126
 127 class wxFileHandle
 128 {
 129 public:
 130     wxFileHandle(const wxString& filename)
 131     {
 132         m_hFile = ::CreateFile
 133                     (
 134                      filename,          // name
 135                      GENERIC_READ,      // access mask
 136                      0,                 // no sharing
 137                      NULL,              // no secutity attr
 138                      OPEN_EXISTING,     // creation disposition
 139                      0,                 // no flags
 140                      NULL               // no template file
 141                     );
 142
 143         if ( m_hFile == INVALID_HANDLE_VALUE )
 144         {
 145             wxLogSysError(_("Failed to open '%s' for reading"),
 146                           filename.c_str());
 147         }
 148     }
 149
 150     ~wxFileHandle()
 151     {
 152         if ( m_hFile != INVALID_HANDLE_VALUE )
 153         {
 154             if ( !::CloseHandle(m_hFile) )
 155             {
 156                 wxLogSysError(_("Failed to close file handle"));
 157             }
 158         }
 159     }
 160
 161     // return TRUE only if the file could be opened successfully
 162     bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
 163
 164     // get the handle
 165     operator HANDLE() const { return m_hFile; }
 166
 167 private:
 168     HANDLE m_hFile;
 169 };
 170
 171 #endif // __WIN32__
 172
 173 // ----------------------------------------------------------------------------
 174 // private functions
 175 // ----------------------------------------------------------------------------
 176
 177 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 178
 179 // convert between wxDateTime and FILETIME which is a 64-bit value representing
 180 // the number of 100-nanosecond intervals since January 1, 1601.
 181
 182 // the number of milliseconds between the Unix Epoch (January 1, 1970) and the
 183 // FILETIME reference point (January 1, 1601)
 184 static const wxLongLong FILETIME_EPOCH_OFFSET = wxLongLong(0xa97, 0x30b66800);
 185
 186 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 187 {
 188     wxLongLong ll(ft.dwHighDateTime, ft.dwLowDateTime);
 189
 190     // convert 100ns to ms
 191     ll /= 10000;
 192
 193     // move it to our Epoch
 194     ll -= FILETIME_EPOCH_OFFSET;
 195
 196     *dt = wxDateTime(ll);
 197 }
 198
 199 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 200 {
 201     // do the reverse of ConvertFileTimeToWx()
 202     wxLongLong ll = dt.GetValue();
 203     ll *= 10000;
 204     ll += FILETIME_EPOCH_OFFSET;
 205
 206     ft->dwHighDateTime = ll.GetHi();
 207     ft->dwLowDateTime = ll.GetLo();
 208 }
 209
 210 #endif // __WIN32__
 211
 212 // ============================================================================
 213 // implementation
 214 // ============================================================================
 215
 216 // ----------------------------------------------------------------------------
 217 // wxFileName construction
 218 // ----------------------------------------------------------------------------
 219
 220 void wxFileName::Assign( const wxFileName &filepath )
 221 {
 222     m_volume = filepath.GetVolume();
 223     m_dirs = filepath.GetDirs();
 224     m_name = filepath.GetName();
 225     m_ext = filepath.GetExt();
 226     m_relative = filepath.IsRelative();
 227 }
 228
 229 void wxFileName::Assign(const wxString& volume,
 230                         const wxString& path,
 231                         const wxString& name,
 232                         const wxString& ext,
 233                         wxPathFormat format )
 234 {
 235     SetPath( path, format );
 236
 237     m_volume = volume;
 238     m_ext = ext;
 239     m_name = name;
 240 }
 241
 242 void wxFileName::SetPath( const wxString &path, wxPathFormat format )
 243 {
 244     wxPathFormat my_format = GetFormat( format );
 245     wxString my_path = path;
 246
 247     m_dirs.Clear();
 248
 249     if (!my_path.empty())
 250     {
 251         // 1) Determine if the path is relative or absolute.
 252
 253         switch (my_format)
 254         {
 255             case wxPATH_MAC:
 256                 m_relative = ( my_path[0u] == wxT(':') );
 257                 // We then remove a leading ":". The reason is in our
 258                 // storage form for relative paths:
 259                 // ":dir:file.txt" actually means "./dir/file.txt" in
 260                 // DOS notation and should get stored as
 261                 // (relative) (dir) (file.txt)
 262                 // "::dir:file.txt" actually means "../dir/file.txt"
 263                 // stored as (relative) (..) (dir) (file.txt)
 264                 // This is important only for the Mac as an empty dir
 265                 // actually means <UP>, whereas under DOS, double
 266                 // slashes can be ignored: "\\\\" is the same as "\\".
 267                 if (m_relative)
 268                     my_path.Remove( 0, 1 );
 269                 break;
 270             case wxPATH_VMS:
 271                 // TODO: what is the relative path format here?
 272                 m_relative = FALSE;
 273                 break;
 274             case wxPATH_UNIX:
 275                 m_relative = ( my_path[0u] != wxT('/') );
 276                 break;
 277             case wxPATH_DOS:
 278                 m_relative = ( (my_path[0u] != wxT('/')) && (my_path[0u] != wxT('\\')) );
 279                 break;
 280             default:
 281                 wxFAIL_MSG( wxT("error") );
 282                 break;
 283         }
 284
 285         // 2) Break up the path into its members. If the original path
 286         //    was just "/" or "\\", m_dirs will be empty. We know from
 287         //    the m_relative field, if this means "nothing" or "root dir".
 288
 289         wxStringTokenizer tn( my_path, GetPathSeparators(my_format) );
 290
 291         while ( tn.HasMoreTokens() )
 292         {
 293             wxString token = tn.GetNextToken();
 294
 295             // Remove empty token under DOS and Unix, interpret them
 296             // as .. under Mac.
 297             if (token.empty())
 298             {
 299                 if (my_format == wxPATH_MAC)
 300                     m_dirs.Add( wxT("..") );
 301                 // else ignore
 302             }
 303             else
 304             {
 305                m_dirs.Add( token );
 306             }
 307         }
 308     }
 309     else
 310     {
 311         m_relative = TRUE;
 312     }
 313 }
 314
 315 void wxFileName::Assign(const wxString& fullpath,
 316                         wxPathFormat format)
 317 {
 318     wxString volume, path, name, ext;
 319     SplitPath(fullpath, &volume, &path, &name, &ext, format);
 320
 321     Assign(volume, path, name, ext, format);
 322 }
 323
 324 void wxFileName::Assign(const wxString& fullpathOrig,
 325                         const wxString& fullname,
 326                         wxPathFormat format)
 327 {
 328     // always recognize fullpath as directory, even if it doesn't end with a
 329     // slash
 330     wxString fullpath = fullpathOrig;
 331     if ( !wxEndsWithPathSeparator(fullpath) )
 332     {
 333         fullpath += GetPathSeparators(format)[0u];
 334     }
 335
 336     wxString volume, path, name, ext;
 337
 338     // do some consistency checks in debug mode: the name should be really just
 339     // the filename and the path should be really just a path
 340 #ifdef __WXDEBUG__
 341     wxString pathDummy, nameDummy, extDummy;
 342
 343     SplitPath(fullname, &pathDummy, &name, &ext, format);
 344
 345     wxASSERT_MSG( pathDummy.empty(),
 346                   _T("the file name shouldn't contain the path") );
 347
 348     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 349
 350     wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
 351                   _T("the path shouldn't contain file name nor extension") );
 352
 353 #else // !__WXDEBUG__
 354     SplitPath(fullname, NULL /* no path */, &name, &ext, format);
 355     SplitPath(fullpath, &volume, &path, NULL, NULL, format);
 356 #endif // __WXDEBUG__/!__WXDEBUG__
 357
 358     Assign(volume, path, name, ext, format);
 359 }
 360
 361 void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 362 {
 363     Assign(dir, _T(""), format);
 364 }
 365
 366 void wxFileName::Clear()
 367 {
 368     m_dirs.Clear();
 369
 370     m_volume =
 371     m_name =
 372     m_ext = wxEmptyString;
 373 }
 374
 375 /* static */
 376 wxFileName wxFileName::FileName(const wxString& file)
 377 {
 378     return wxFileName(file);
 379 }
 380
 381 /* static */
 382 wxFileName wxFileName::DirName(const wxString& dir)
 383 {
 384     wxFileName fn;
 385     fn.AssignDir(dir);
 386     return fn;
 387 }
 388
 389 // ----------------------------------------------------------------------------
 390 // existence tests
 391 // ----------------------------------------------------------------------------
 392
 393 bool wxFileName::FileExists()
 394 {
 395     return wxFileName::FileExists( GetFullPath() );
 396 }
 397
 398 bool wxFileName::FileExists( const wxString &file )
 399 {
 400     return ::wxFileExists( file );
 401 }
 402
 403 bool wxFileName::DirExists()
 404 {
 405     return wxFileName::DirExists( GetFullPath() );
 406 }
 407
 408 bool wxFileName::DirExists( const wxString &dir )
 409 {
 410     return ::wxDirExists( dir );
 411 }
 412
 413 // ----------------------------------------------------------------------------
 414 // CWD and HOME stuff
 415 // ----------------------------------------------------------------------------
 416
 417 void wxFileName::AssignCwd(const wxString& volume)
 418 {
 419     AssignDir(wxFileName::GetCwd(volume));
 420 }
 421
 422 /* static */
 423 wxString wxFileName::GetCwd(const wxString& volume)
 424 {
 425     // if we have the volume, we must get the current directory on this drive
 426     // and to do this we have to chdir to this volume - at least under Windows,
 427     // I don't know how to get the current drive on another volume elsewhere
 428     // (TODO)
 429     wxString cwdOld;
 430     if ( !volume.empty() )
 431     {
 432         cwdOld = wxGetCwd();
 433         SetCwd(volume + GetVolumeSeparator());
 434     }
 435
 436     wxString cwd = ::wxGetCwd();
 437
 438     if ( !volume.empty() )
 439     {
 440         SetCwd(cwdOld);
 441     }
 442
 443     return cwd;
 444 }
 445
 446 bool wxFileName::SetCwd()
 447 {
 448     return wxFileName::SetCwd( GetFullPath() );
 449 }
 450
 451 bool wxFileName::SetCwd( const wxString &cwd )
 452 {
 453     return ::wxSetWorkingDirectory( cwd );
 454 }
 455
 456 void wxFileName::AssignHomeDir()
 457 {
 458     AssignDir(wxFileName::GetHomeDir());
 459 }
 460
 461 wxString wxFileName::GetHomeDir()
 462 {
 463     return ::wxGetHomeDir();
 464 }
 465
 466 void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
 467 {
 468     wxString tempname = CreateTempFileName(prefix, fileTemp);
 469     if ( tempname.empty() )
 470     {
 471         // error, failed to get temp file name
 472         Clear();
 473     }
 474     else // ok
 475     {
 476         Assign(tempname);
 477     }
 478 }
 479
 480 /* static */
 481 wxString
 482 wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
 483 {
 484     wxString path, dir, name;
 485
 486     // use the directory specified by the prefix
 487     SplitPath(prefix, &dir, &name, NULL /* extension */);
 488
 489 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 490
 491 #ifdef __WIN32__
 492     if ( dir.empty() )
 493     {
 494         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
 495         {
 496             wxLogLastError(_T("GetTempPath"));
 497         }
 498
 499         if ( dir.empty() )
 500         {
 501             // GetTempFileName() fails if we pass it an empty string
 502             dir = _T('.');
 503         }
 504     }
 505
 506     if ( !::GetTempFileName(dir, name, 0, wxStringBuffer(path, MAX_PATH + 1)) )
 507     {
 508         wxLogLastError(_T("GetTempFileName"));
 509
 510         path.clear();
 511     }
 512 #else // Win16
 513     if ( !::GetTempFileName(NULL, prefix, 0, wxStringBuffer(path, 1025)) )
 514     {
 515         path.clear();
 516     }
 517 #endif // Win32/16
 518
 519 #elif defined(__WXPM__)
 520     // for now just create a file
 521     //
 522     // future enhancements can be to set some extended attributes for file
 523     // systems OS/2 supports that have them (HPFS, FAT32) and security
 524     // (HPFS386)
 525     static const wxChar *szMktempSuffix = wxT("XXX");
 526     path << dir << _T('/') << name << szMktempSuffix;
 527
 528     // Temporarily remove - MN
 529     #ifndef __WATCOMC__
 530         ::DosCreateDir(wxStringBuffer(path, MAX_PATH), NULL);
 531     #endif
 532
 533 #else // !Windows, !OS/2
 534     if ( dir.empty() )
 535     {
 536         dir = wxGetenv(_T("TMP"));
 537         if ( path.empty() )
 538         {
 539             dir = wxGetenv(_T("TEMP"));
 540         }
 541
 542         if ( dir.empty() )
 543         {
 544             // default
 545             #ifdef __DOS__
 546             dir = _T(".");
 547             #else
 548             dir = _T("/tmp");
 549             #endif
 550         }
 551     }
 552
 553     path = dir;
 554
 555     if ( !wxEndsWithPathSeparator(dir) &&
 556             (name.empty() || !wxIsPathSeparator(name[0u])) )
 557     {
 558         path += wxFILE_SEP_PATH;
 559     }
 560
 561     path += name;
 562
 563 #if defined(HAVE_MKSTEMP)
 564     // scratch space for mkstemp()
 565     path += _T("XXXXXX");
 566
 567     // can use the cast here because the length doesn't change and the string
 568     // is not shared
 569     int fdTemp = mkstemp((char *)path.mb_str());
 570     if ( fdTemp == -1 )
 571     {
 572         // this might be not necessary as mkstemp() on most systems should have
 573         // already done it but it doesn't hurt neither...
 574         path.clear();
 575     }
 576     else // mkstemp() succeeded
 577     {
 578         // avoid leaking the fd
 579         if ( fileTemp )
 580         {
 581             fileTemp->Attach(fdTemp);
 582         }
 583         else
 584         {
 585             close(fdTemp);
 586         }
 587     }
 588 #else // !HAVE_MKSTEMP
 589
 590 #ifdef HAVE_MKTEMP
 591     // same as above
 592     path += _T("XXXXXX");
 593
 594     if ( !mktemp((char *)path.mb_str()) )
 595     {
 596         path.clear();
 597     }
 598 #else // !HAVE_MKTEMP (includes __DOS__)
 599     // generate the unique file name ourselves
 600     #ifndef __DOS__
 601     path << (unsigned int)getpid();
 602     #endif
 603
 604     wxString pathTry;
 605
 606     static const size_t numTries = 1000;
 607     for ( size_t n = 0; n < numTries; n++ )
 608     {
 609         // 3 hex digits is enough for numTries == 1000 < 4096
 610         pathTry = path + wxString::Format(_T("%.03x"), n);
 611         if ( !wxFile::Exists(pathTry) )
 612         {
 613             break;
 614         }
 615
 616         pathTry.clear();
 617     }
 618
 619     path = pathTry;
 620 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 621
 622     if ( !path.empty() )
 623     {
 624     }
 625 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 626
 627 #endif // Windows/!Windows
 628
 629     if ( path.empty() )
 630     {
 631         wxLogSysError(_("Failed to create a temporary file name"));
 632     }
 633     else if ( fileTemp && !fileTemp->IsOpened() )
 634     {
 635         // open the file - of course, there is a race condition here, this is
 636         // why we always prefer using mkstemp()...
 637         //
 638         // NB: GetTempFileName() under Windows creates the file, so using
 639         //     write_excl there would fail
 640         if ( !fileTemp->Open(path,
 641 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 642                              wxFile::write,
 643 #else
 644                              wxFile::write_excl,
 645 #endif
 646                              wxS_IRUSR | wxS_IWUSR) )
 647         {
 648             // FIXME: If !ok here should we loop and try again with another
 649             //        file name?  That is the standard recourse if open(O_EXCL)
 650             //        fails, though of course it should be protected against
 651             //        possible infinite looping too.
 652
 653             wxLogError(_("Failed to open temporary file."));
 654
 655             path.clear();
 656         }
 657     }
 658
 659     return path;
 660 }
 661
 662 // ----------------------------------------------------------------------------
 663 // directory operations
 664 // ----------------------------------------------------------------------------
 665
 666 bool wxFileName::Mkdir( int perm, bool full )
 667 {
 668     return wxFileName::Mkdir( GetFullPath(), perm, full );
 669 }
 670
 671 bool wxFileName::Mkdir( const wxString &dir, int perm, bool full )
 672 {
 673     if (full)
 674     {
 675         wxFileName filename(dir);
 676         wxArrayString dirs = filename.GetDirs();
 677         dirs.Add(filename.GetName());
 678
 679         size_t count = dirs.GetCount();
 680         size_t i;
 681         wxString currPath;
 682         int noErrors = 0;
 683         for ( i = 0; i < count; i++ )
 684         {
 685             currPath += dirs[i];
 686
 687             if (currPath.Last() == wxT(':'))
 688             {
 689                 // Can't create a root directory so continue to next dir
 690                 currPath += wxFILE_SEP_PATH;
 691                 continue;
 692             }
 693
 694             if (!DirExists(currPath))
 695                 if (!wxMkdir(currPath, perm))
 696                     noErrors ++;
 697
 698             if ( (i < (count-1)) )
 699                 currPath += wxFILE_SEP_PATH;
 700         }
 701
 702         return (noErrors == 0);
 703
 704     }
 705     else
 706         return ::wxMkdir( dir, perm );
 707 }
 708
 709 bool wxFileName::Rmdir()
 710 {
 711     return wxFileName::Rmdir( GetFullPath() );
 712 }
 713
 714 bool wxFileName::Rmdir( const wxString &dir )
 715 {
 716     return ::wxRmdir( dir );
 717 }
 718
 719 // ----------------------------------------------------------------------------
 720 // path normalization
 721 // ----------------------------------------------------------------------------
 722
 723 bool wxFileName::Normalize(wxPathNormalize flags,
 724                            const wxString& cwd,
 725                            wxPathFormat format)
 726 {
 727     // the existing path components
 728     wxArrayString dirs = GetDirs();
 729
 730     // the path to prepend in front to make the path absolute
 731     wxFileName curDir;
 732
 733     format = GetFormat(format);
 734
 735     // make the path absolute
 736     if ( (flags & wxPATH_NORM_ABSOLUTE) && m_relative )
 737     {
 738         if ( cwd.empty() )
 739         {
 740             curDir.AssignCwd(GetVolume());
 741         }
 742         else // cwd provided
 743         {
 744             curDir.AssignDir(cwd);
 745         }
 746
 747 #if 0
 748         // the path may be not absolute because it doesn't have the volume name
 749         // but in this case we shouldn't modify the directory components of it
 750         // but just set the current volume
 751         if ( !HasVolume() && curDir.HasVolume() )
 752         {
 753             SetVolume(curDir.GetVolume());
 754
 755             if ( IsAbsolute() )
 756             {
 757                 // yes, it was the case - we don't need curDir then
 758                 curDir.Clear();
 759             }
 760         }
 761 #endif
 762         m_relative = FALSE;
 763     }
 764
 765     // handle ~ stuff under Unix only
 766     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
 767     {
 768         if ( !dirs.IsEmpty() )
 769         {
 770             wxString dir = dirs[0u];
 771             if ( !dir.empty() && dir[0u] == _T('~') )
 772             {
 773                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
 774
 775                 dirs.RemoveAt(0u);
 776             }
 777         }
 778     }
 779
 780     // transform relative path into abs one
 781     if ( curDir.IsOk() )
 782     {
 783         wxArrayString dirsNew = curDir.GetDirs();
 784         size_t count = dirs.GetCount();
 785         for ( size_t n = 0; n < count; n++ )
 786         {
 787             dirsNew.Add(dirs[n]);
 788         }
 789
 790         dirs = dirsNew;
 791     }
 792
 793     // now deal with ".", ".." and the rest
 794     m_dirs.Empty();
 795     size_t count = dirs.GetCount();
 796     for ( size_t n = 0; n < count; n++ )
 797     {
 798         wxString dir = dirs[n];
 799
 800         if ( flags & wxPATH_NORM_DOTS )
 801         {
 802             if ( dir == wxT(".") )
 803             {
 804                 // just ignore
 805                 continue;
 806             }
 807
 808             if ( dir == wxT("..") )
 809             {
 810                 if ( m_dirs.IsEmpty() )
 811                 {
 812                     wxLogError(_("The path '%s' contains too many \"..\"!"),
 813                                GetFullPath().c_str());
 814                     return FALSE;
 815                 }
 816
 817                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
 818                 continue;
 819             }
 820         }
 821
 822         if ( flags & wxPATH_NORM_ENV_VARS )
 823         {
 824             dir = wxExpandEnvVars(dir);
 825         }
 826
 827         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 828         {
 829             dir.MakeLower();
 830         }
 831
 832         m_dirs.Add(dir);
 833     }
 834
 835     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 836     {
 837         // VZ: expand env vars here too?
 838
 839         m_name.MakeLower();
 840         m_ext.MakeLower();
 841     }
 842
 843 #if defined(__WIN32__)
 844     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
 845     {
 846         Assign(GetLongPath());
 847     }
 848 #endif // Win32
 849
 850     return TRUE;
 851 }
 852
 853 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
 854 {
 855     wxFileName fnBase(pathBase, format);
 856
 857     // get cwd only once - small time saving
 858     wxString cwd = wxGetCwd();
 859     Normalize(wxPATH_NORM_ALL, cwd, format);
 860     fnBase.Normalize(wxPATH_NORM_ALL, cwd, format);
 861
 862     bool withCase = IsCaseSensitive(format);
 863
 864     // we can't do anything if the files live on different volumes
 865     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
 866     {
 867         // nothing done
 868         return FALSE;
 869     }
 870
 871     // same drive, so we don't need our volume
 872     m_volume.clear();
 873
 874     // remove common directories starting at the top
 875     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
 876                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
 877     {
 878         m_dirs.RemoveAt(0);
 879         fnBase.m_dirs.RemoveAt(0);
 880     }
 881
 882     // add as many ".." as needed
 883     size_t count = fnBase.m_dirs.GetCount();
 884     for ( size_t i = 0; i < count; i++ )
 885     {
 886         m_dirs.Insert(wxT(".."), 0u);
 887     }
 888
 889     m_relative = TRUE;
 890
 891     // we were modified
 892     return TRUE;
 893 }
 894
 895 // ----------------------------------------------------------------------------
 896 // filename kind tests
 897 // ----------------------------------------------------------------------------
 898
 899 bool wxFileName::SameAs(const wxFileName &filepath, wxPathFormat format)
 900 {
 901     wxFileName fn1 = *this,
 902                fn2 = filepath;
 903
 904     // get cwd only once - small time saving
 905     wxString cwd = wxGetCwd();
 906     fn1.Normalize(wxPATH_NORM_ALL, cwd, format);
 907     fn2.Normalize(wxPATH_NORM_ALL, cwd, format);
 908
 909     if ( fn1.GetFullPath() == fn2.GetFullPath() )
 910         return TRUE;
 911
 912     // TODO: compare inodes for Unix, this works even when filenames are
 913     //       different but files are the same (symlinks) (VZ)
 914
 915     return FALSE;
 916 }
 917
 918 /* static */
 919 bool wxFileName::IsCaseSensitive( wxPathFormat format )
 920 {
 921     // only Unix filenames are truely case-sensitive
 922     return GetFormat(format) == wxPATH_UNIX;
 923 }
 924
 925 /* static */
 926 wxString wxFileName::GetVolumeSeparator(wxPathFormat format)
 927 {
 928     wxString sepVol;
 929
 930     if ( (GetFormat(format) == wxPATH_DOS) ||
 931          (GetFormat(format) == wxPATH_VMS) )
 932     {
 933         sepVol = wxFILE_SEP_DSK;
 934     }
 935     //else: leave empty
 936
 937     return sepVol;
 938 }
 939
 940 /* static */
 941 wxString wxFileName::GetPathSeparators(wxPathFormat format)
 942 {
 943     wxString seps;
 944     switch ( GetFormat(format) )
 945     {
 946         case wxPATH_DOS:
 947             // accept both as native APIs do but put the native one first as
 948             // this is the one we use in GetFullPath()
 949             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
 950             break;
 951
 952         default:
 953             wxFAIL_MSG( _T("unknown wxPATH_XXX style") );
 954             // fall through
 955
 956         case wxPATH_UNIX:
 957             seps = wxFILE_SEP_PATH_UNIX;
 958             break;
 959
 960         case wxPATH_MAC:
 961             seps = wxFILE_SEP_PATH_MAC;
 962             break;
 963
 964         case wxPATH_VMS:
 965             seps = wxFILE_SEP_PATH_VMS;
 966             break;
 967     }
 968
 969     return seps;
 970 }
 971
 972 /* static */
 973 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
 974 {
 975     // wxString::Find() doesn't work as expected with NUL - it will always find
 976     // it, so it is almost surely a bug if this function is called with NUL arg
 977     wxASSERT_MSG( ch != _T('\0'), _T("shouldn't be called with NUL") );
 978
 979     return GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
 980 }
 981
 982 bool wxFileName::IsWild( wxPathFormat format )
 983 {
 984     // FIXME: this is probably false for Mac and this is surely wrong for most
 985     //        of Unix shells (think about "[...]")
 986     (void)format;
 987     return m_name.find_first_of(_T("*?")) != wxString::npos;
 988 }
 989
 990 // ----------------------------------------------------------------------------
 991 // path components manipulation
 992 // ----------------------------------------------------------------------------
 993
 994 void wxFileName::AppendDir( const wxString &dir )
 995 {
 996     m_dirs.Add( dir );
 997 }
 998
 999 void wxFileName::PrependDir( const wxString &dir )
1000 {
1001     m_dirs.Insert( dir, 0 );
1002 }
1003
1004 void wxFileName::InsertDir( int before, const wxString &dir )
1005 {
1006     m_dirs.Insert( dir, before );
1007 }
1008
1009 void wxFileName::RemoveDir( int pos )
1010 {
1011     m_dirs.Remove( (size_t)pos );
1012 }
1013
1014 // ----------------------------------------------------------------------------
1015 // accessors
1016 // ----------------------------------------------------------------------------
1017
1018 void wxFileName::SetFullName(const wxString& fullname)
1019 {
1020     SplitPath(fullname, NULL /* no path */, &m_name, &m_ext);
1021 }
1022
1023 wxString wxFileName::GetFullName() const
1024 {
1025     wxString fullname = m_name;
1026     if ( !m_ext.empty() )
1027     {
1028         fullname << wxFILE_SEP_EXT << m_ext;
1029     }
1030
1031     return fullname;
1032 }
1033
1034 wxString wxFileName::GetPath( bool add_separator, wxPathFormat format ) const
1035 {
1036     format = GetFormat( format );
1037
1038     wxString fullpath;
1039
1040     // the leading character
1041     if ( format == wxPATH_MAC && m_relative )
1042     {
1043          fullpath += wxFILE_SEP_PATH_MAC;
1044     }
1045     else if ( format == wxPATH_DOS )
1046     {
1047          if (!m_relative)
1048              fullpath += wxFILE_SEP_PATH_DOS;
1049     }
1050     else if ( format == wxPATH_UNIX )
1051     {
1052          if (!m_relative)
1053              fullpath += wxFILE_SEP_PATH_UNIX;
1054     }
1055
1056     // then concatenate all the path components using the path separator
1057     size_t dirCount = m_dirs.GetCount();
1058     if ( dirCount )
1059     {
1060         if ( format == wxPATH_VMS )
1061         {
1062             fullpath += wxT('[');
1063         }
1064
1065
1066         for ( size_t i = 0; i < dirCount; i++ )
1067         {
1068             // TODO: What to do with ".." under VMS
1069
1070             switch (format)
1071             {
1072                 case wxPATH_MAC:
1073                 {
1074                     if (m_dirs[i] == wxT("."))
1075                         break;
1076                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1077                          fullpath += m_dirs[i];
1078                     fullpath += wxT(':');
1079                     break;
1080                 }
1081                 case wxPATH_DOS:
1082                 {
1083                     fullpath += m_dirs[i];
1084                     fullpath += wxT('\\');
1085                     break;
1086                 }
1087                 case wxPATH_UNIX:
1088                 {
1089                     fullpath += m_dirs[i];
1090                     fullpath += wxT('/');
1091                     break;
1092                 }
1093                 case wxPATH_VMS:
1094                 {
1095                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1096                         fullpath += m_dirs[i];
1097                     if (i == dirCount-1)
1098                         fullpath += wxT(']');
1099                     else
1100                         fullpath += wxT('.');
1101                     break;
1102                 }
1103                 default:
1104                 {
1105                     wxFAIL_MSG( wxT("error") );
1106                 }
1107             }
1108         }
1109     }
1110
1111
1112
1113     return fullpath;
1114 }
1115
1116 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1117 {
1118     format = GetFormat(format);
1119
1120     wxString fullpath;
1121
1122     // first put the volume
1123     if ( !m_volume.empty() )
1124     {
1125         {
1126             // Special Windows UNC paths hack, part 2: undo what we did in
1127             // SplitPath() and make an UNC path if we have a drive which is not a
1128             // single letter (hopefully the network shares can't be one letter only
1129             // although I didn't find any authoritative docs on this)
1130             if ( format == wxPATH_DOS && m_volume.length() > 1 )
1131             {
1132                 fullpath << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << m_volume;
1133             }
1134             else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
1135             {
1136                 fullpath << m_volume << GetVolumeSeparator(format);
1137             }
1138             // else ignore
1139         }
1140     }
1141
1142     // the leading character
1143     if ( format == wxPATH_MAC && m_relative )
1144     {
1145          fullpath += wxFILE_SEP_PATH_MAC;
1146     }
1147     else if ( format == wxPATH_DOS )
1148     {
1149          if (!m_relative)
1150              fullpath += wxFILE_SEP_PATH_DOS;
1151     }
1152     else if ( format == wxPATH_UNIX )
1153     {
1154          if (!m_relative)
1155              fullpath += wxFILE_SEP_PATH_UNIX;
1156     }
1157
1158     // then concatenate all the path components using the path separator
1159     size_t dirCount = m_dirs.GetCount();
1160     if ( dirCount )
1161     {
1162         if ( format == wxPATH_VMS )
1163         {
1164             fullpath += wxT('[');
1165         }
1166
1167
1168         for ( size_t i = 0; i < dirCount; i++ )
1169         {
1170             // TODO: What to do with ".." under VMS
1171
1172             switch (format)
1173             {
1174                 case wxPATH_MAC:
1175                 {
1176                     if (m_dirs[i] == wxT("."))
1177                         break;
1178                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1179                          fullpath += m_dirs[i];
1180                     fullpath += wxT(':');
1181                     break;
1182                 }
1183                 case wxPATH_DOS:
1184                 {
1185                     fullpath += m_dirs[i];
1186                     fullpath += wxT('\\');
1187                     break;
1188                 }
1189                 case wxPATH_UNIX:
1190                 {
1191                     fullpath += m_dirs[i];
1192                     fullpath += wxT('/');
1193                     break;
1194                 }
1195                 case wxPATH_VMS:
1196                 {
1197                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1198                         fullpath += m_dirs[i];
1199                     if (i == dirCount-1)
1200                         fullpath += wxT(']');
1201                     else
1202                         fullpath += wxT('.');
1203                     break;
1204                 }
1205                 default:
1206                 {
1207                     wxFAIL_MSG( wxT("error") );
1208                 }
1209             }
1210         }
1211     }
1212
1213     // finally add the file name and extension
1214     fullpath += GetFullName();
1215
1216     return fullpath;
1217 }
1218
1219 // Return the short form of the path (returns identity on non-Windows platforms)
1220 wxString wxFileName::GetShortPath() const
1221 {
1222 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__)
1223     wxString path(GetFullPath());
1224     wxString pathOut;
1225     DWORD sz = ::GetShortPathName(path, NULL, 0);
1226     bool ok = sz != 0;
1227     if ( ok )
1228     {
1229         ok = ::GetShortPathName
1230                (
1231                 path,
1232                 pathOut.GetWriteBuf(sz),
1233                 sz
1234                ) != 0;
1235         pathOut.UngetWriteBuf();
1236     }
1237     if (ok)
1238         return pathOut;
1239
1240     return path;
1241 #else
1242     return GetFullPath();
1243 #endif
1244 }
1245
1246 // Return the long form of the path (returns identity on non-Windows platforms)
1247 wxString wxFileName::GetLongPath() const
1248 {
1249     wxString pathOut,
1250              path = GetFullPath();
1251
1252 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1253     bool success = FALSE;
1254
1255     // VZ: this code was disabled, why?
1256 #if 0 // wxUSE_DYNAMIC_LOADER
1257     typedef DWORD (*GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1258
1259     static bool s_triedToLoad = FALSE;
1260
1261     if ( !s_triedToLoad )
1262     {
1263         s_triedToLoad = TRUE;
1264         wxDllType dllKernel = wxDllLoader::LoadLibrary(_T("kernel32"));
1265         if ( dllKernel )
1266         {
1267             // may succeed or fail depending on the Windows version
1268             static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1269 #ifdef _UNICODE
1270             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) wxDllLoader::GetSymbol(dllKernel, _T("GetLongPathNameW"));
1271 #else
1272             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) wxDllLoader::GetSymbol(dllKernel, _T("GetLongPathNameA"));
1273 #endif
1274
1275             wxDllLoader::UnloadLibrary(dllKernel);
1276
1277             if ( s_pfnGetLongPathName )
1278             {
1279                 DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
1280                 bool ok = dwSize > 0;
1281
1282                 if ( ok )
1283                 {
1284                     DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
1285                     ok = sz != 0;
1286                     if ( ok )
1287                     {
1288                         ok = (*s_pfnGetLongPathName)
1289                                 (
1290                                 path,
1291                                 pathOut.GetWriteBuf(sz),
1292                                 sz
1293                                 ) != 0;
1294                         pathOut.UngetWriteBuf();
1295
1296                         success = TRUE;
1297                     }
1298                 }
1299             }
1300         }
1301     }
1302     if (success)
1303         return pathOut;
1304 #endif // wxUSE_DYNAMIC_LOADER
1305
1306     if (!success)
1307     {
1308         // The OS didn't support GetLongPathName, or some other error.
1309         // We need to call FindFirstFile on each component in turn.
1310
1311         WIN32_FIND_DATA findFileData;
1312         HANDLE hFind;
1313         pathOut = wxEmptyString;
1314
1315         wxArrayString dirs = GetDirs();
1316         dirs.Add(GetFullName());
1317
1318         wxString tmpPath;
1319
1320         size_t count = dirs.GetCount();
1321         for ( size_t i = 0; i < count; i++ )
1322         {
1323             // We're using pathOut to collect the long-name path, but using a
1324             // temporary for appending the last path component which may be
1325             // short-name
1326             tmpPath = pathOut + dirs[i];
1327
1328             if ( tmpPath.empty() )
1329                 continue;
1330
1331             if ( tmpPath.Last() == wxT(':') )
1332             {
1333                 // Can't pass a drive and root dir to FindFirstFile,
1334                 // so continue to next dir
1335                 tmpPath += wxFILE_SEP_PATH;
1336                 pathOut = tmpPath;
1337                 continue;
1338             }
1339
1340             hFind = ::FindFirstFile(tmpPath, &findFileData);
1341             if (hFind == INVALID_HANDLE_VALUE)
1342             {
1343                 // Error: return immediately with the original path
1344                 return path;
1345             }
1346
1347             pathOut += findFileData.cFileName;
1348             if ( (i < (count-1)) )
1349                 pathOut += wxFILE_SEP_PATH;
1350
1351             ::FindClose(hFind);
1352         }
1353     }
1354 #else // !Win32
1355     pathOut = path;
1356 #endif // Win32/!Win32
1357
1358     return pathOut;
1359 }
1360
1361 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1362 {
1363     if (format == wxPATH_NATIVE)
1364     {
1365 #if defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__)
1366         format = wxPATH_DOS;
1367 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1368         format = wxPATH_MAC;
1369 #elif defined(__VMS)
1370         format = wxPATH_VMS;
1371 #else
1372         format = wxPATH_UNIX;
1373 #endif
1374     }
1375     return format;
1376 }
1377
1378 // ----------------------------------------------------------------------------
1379 // path splitting function
1380 // ----------------------------------------------------------------------------
1381
1382 /* static */
1383 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
1384                            wxString *pstrVolume,
1385                            wxString *pstrPath,
1386                            wxString *pstrName,
1387                            wxString *pstrExt,
1388                            wxPathFormat format)
1389 {
1390     format = GetFormat(format);
1391
1392     wxString fullpath = fullpathWithVolume;
1393
1394     // under VMS the end of the path is ']', not the path separator used to
1395     // separate the components
1396     wxString sepPath = format == wxPATH_VMS ? wxString(_T(']'))
1397                                             : GetPathSeparators(format);
1398
1399     // special Windows UNC paths hack: transform \\share\path into share:path
1400     if ( format == wxPATH_DOS )
1401     {
1402         if ( fullpath.length() >= 4 &&
1403                 fullpath[0u] == wxFILE_SEP_PATH_DOS &&
1404                     fullpath[1u] == wxFILE_SEP_PATH_DOS )
1405         {
1406             fullpath.erase(0, 2);
1407
1408             size_t posFirstSlash = fullpath.find_first_of(sepPath);
1409             if ( posFirstSlash != wxString::npos )
1410             {
1411                 fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1412
1413                 // UNC paths are always absolute, right? (FIXME)
1414                 fullpath.insert(posFirstSlash + 1, wxFILE_SEP_PATH_DOS);
1415             }
1416         }
1417     }
1418
1419     // We separate the volume here
1420     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1421     {
1422         wxString sepVol = GetVolumeSeparator(format);
1423
1424         size_t posFirstColon = fullpath.find_first_of(sepVol);
1425         if ( posFirstColon != wxString::npos )
1426         {
1427             if ( pstrVolume )
1428             {
1429                 *pstrVolume = fullpath.Left(posFirstColon);
1430             }
1431
1432             // remove the volume name and the separator from the full path
1433             fullpath.erase(0, posFirstColon + sepVol.length());
1434         }
1435     }
1436
1437     // find the positions of the last dot and last path separator in the path
1438     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
1439     size_t posLastSlash = fullpath.find_last_of(sepPath);
1440
1441     if ( (posLastDot != wxString::npos) &&
1442             ((format == wxPATH_UNIX) || (format == wxPATH_VMS)) )
1443     {
1444         if ( (posLastDot == 0) ||
1445              (fullpath[posLastDot - 1] == sepPath[0u] ) )
1446         {
1447             // under Unix and VMS, dot may be (and commonly is) the first
1448             // character of the filename, don't treat the entire filename as
1449             // extension in this case
1450             posLastDot = wxString::npos;
1451         }
1452     }
1453
1454     // if we do have a dot and a slash, check that the dot is in the name part
1455     if ( (posLastDot != wxString::npos) &&
1456          (posLastSlash != wxString::npos) &&
1457          (posLastDot < posLastSlash) )
1458     {
1459         // the dot is part of the path, not the start of the extension
1460         posLastDot = wxString::npos;
1461     }
1462
1463     // now fill in the variables provided by user
1464     if ( pstrPath )
1465     {
1466         if ( posLastSlash == wxString::npos )
1467         {
1468             // no path at all
1469             pstrPath->Empty();
1470         }
1471         else
1472         {
1473             // take everything up to the path separator but take care to make
1474             // the path equal to something like '/', not empty, for the files
1475             // immediately under root directory
1476             size_t len = posLastSlash;
1477             if ( !len )
1478                 len++;
1479
1480             *pstrPath = fullpath.Left(len);
1481
1482             // special VMS hack: remove the initial bracket
1483             if ( format == wxPATH_VMS )
1484             {
1485                 if ( (*pstrPath)[0u] == _T('[') )
1486                     pstrPath->erase(0, 1);
1487             }
1488         }
1489     }
1490
1491     if ( pstrName )
1492     {
1493         // take all characters starting from the one after the last slash and
1494         // up to, but excluding, the last dot
1495         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
1496         size_t count;
1497         if ( posLastDot == wxString::npos )
1498         {
1499             // take all until the end
1500             count = wxString::npos;
1501         }
1502         else if ( posLastSlash == wxString::npos )
1503         {
1504             count = posLastDot;
1505         }
1506         else // have both dot and slash
1507         {
1508             count = posLastDot - posLastSlash - 1;
1509         }
1510
1511         *pstrName = fullpath.Mid(nStart, count);
1512     }
1513
1514     if ( pstrExt )
1515     {
1516         if ( posLastDot == wxString::npos )
1517         {
1518             // no extension
1519             pstrExt->Empty();
1520         }
1521         else
1522         {
1523             // take everything after the dot
1524             *pstrExt = fullpath.Mid(posLastDot + 1);
1525         }
1526     }
1527 }
1528
1529 /* static */
1530 void wxFileName::SplitPath(const wxString& fullpath,
1531                            wxString *path,
1532                            wxString *name,
1533                            wxString *ext,
1534                            wxPathFormat format)
1535 {
1536     wxString volume;
1537     SplitPath(fullpath, &volume, path, name, ext, format);
1538
1539     if ( path && !volume.empty() )
1540     {
1541         path->Prepend(volume + GetVolumeSeparator(format));
1542     }
1543 }
1544
1545 // ----------------------------------------------------------------------------
1546 // time functions
1547 // ----------------------------------------------------------------------------
1548
1549 bool wxFileName::SetTimes(const wxDateTime *dtCreate,
1550                           const wxDateTime *dtAccess,
1551                           const wxDateTime *dtMod)
1552 {
1553 #if defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
1554     if ( !dtAccess && !dtMod )
1555     {
1556         // can't modify the creation time anyhow, don't try
1557         return TRUE;
1558     }
1559
1560     // if dtAccess or dtMod is not specified, use the other one (which must be
1561     // non NULL because of the test above) for both times
1562     utimbuf utm;
1563     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
1564     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
1565     if ( utime(GetFullPath(), &utm) == 0 )
1566     {
1567         return TRUE;
1568     }
1569 #elif defined(__WIN32__)
1570     wxFileHandle fh(GetFullPath());
1571     if ( fh.IsOk() )
1572     {
1573         FILETIME ftAccess, ftCreate, ftWrite;
1574
1575         if ( dtCreate )
1576             ConvertWxToFileTime(&ftCreate, *dtCreate);
1577         if ( dtAccess )
1578             ConvertWxToFileTime(&ftAccess, *dtAccess);
1579         if ( dtMod )
1580             ConvertWxToFileTime(&ftWrite, *dtMod);
1581
1582         if ( ::SetFileTime(fh,
1583                            dtCreate ? &ftCreate : NULL,
1584                            dtAccess ? &ftAccess : NULL,
1585                            dtMod ? &ftWrite : NULL) )
1586         {
1587             return TRUE;
1588         }
1589     }
1590 #else // other platform
1591 #endif // platforms
1592
1593     wxLogSysError(_("Failed to modify file times for '%s'"),
1594                   GetFullPath().c_str());
1595
1596     return FALSE;
1597 }
1598
1599 bool wxFileName::Touch()
1600 {
1601 #if defined(__UNIX_LIKE__)
1602     // under Unix touching file is simple: just pass NULL to utime()
1603     if ( utime(GetFullPath(), NULL) == 0 )
1604     {
1605         return TRUE;
1606     }
1607
1608     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
1609
1610     return FALSE;
1611 #else // other platform
1612     wxDateTime dtNow = wxDateTime::Now();
1613
1614     return SetTimes(NULL /* don't change create time */, &dtNow, &dtNow);
1615 #endif // platforms
1616 }
1617
1618 bool wxFileName::GetTimes(wxDateTime *dtAccess,
1619                           wxDateTime *dtMod,
1620                           wxDateTime *dtChange) const
1621 {
1622 #if defined(__UNIX_LIKE__) || defined(__WXMAC__) || (defined(__DOS__) && defined(__WATCOMC__))
1623     wxStructStat stBuf;
1624     if ( wxStat(GetFullPath(), &stBuf) == 0 )
1625     {
1626         if ( dtAccess )
1627             dtAccess->Set(stBuf.st_atime);
1628         if ( dtMod )
1629             dtMod->Set(stBuf.st_mtime);
1630         if ( dtChange )
1631             dtChange->Set(stBuf.st_ctime);
1632
1633         return TRUE;
1634     }
1635 #elif defined(__WIN32__)
1636     wxFileHandle fh(GetFullPath());
1637     if ( fh.IsOk() )
1638     {
1639         FILETIME ftAccess, ftCreate, ftWrite;
1640
1641         if ( ::GetFileTime(fh,
1642                            dtMod ? &ftCreate : NULL,
1643                            dtAccess ? &ftAccess : NULL,
1644                            dtChange ? &ftWrite : NULL) )
1645         {
1646             if ( dtMod )
1647                 ConvertFileTimeToWx(dtMod, ftCreate);
1648             if ( dtAccess )
1649                 ConvertFileTimeToWx(dtAccess, ftAccess);
1650             if ( dtChange )
1651                 ConvertFileTimeToWx(dtChange, ftWrite);
1652
1653             return TRUE;
1654         }
1655     }
1656 #else // other platform
1657 #endif // platforms
1658
1659     wxLogSysError(_("Failed to retrieve file times for '%s'"),
1660                   GetFullPath().c_str());
1661
1662     return FALSE;
1663 }
1664