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 #if defined(__WXMAC__)
  94   #include  "wx/mac/private.h"  // includes mac headers
  95 #endif
  96
  97 // utime() is POSIX so should normally be available on all Unices
  98 #ifdef __UNIX_LIKE__
  99 #include <sys/types.h>
 100 #include <utime.h>
 101 #include <sys/stat.h>
 102 #include <unistd.h>
 103 #endif
 104
 105 #ifdef __DJGPP__
 106 #include <unistd.h>
 107 #endif
 108
 109 #ifdef __MWERKS__
 110 #include <stat.h>
 111 #include <unistd.h>
 112 #include <unix.h>
 113 #endif
 114
 115 #ifdef __WATCOMC__
 116 #include <io.h>
 117 #include <sys/utime.h>
 118 #include <sys/stat.h>
 119 #endif
 120
 121 #ifdef __VISAGECPP__
 122 #ifndef MAX_PATH
 123 #define MAX_PATH 256
 124 #endif
 125 #endif
 126
 127 // ----------------------------------------------------------------------------
 128 // private classes
 129 // ----------------------------------------------------------------------------
 130
 131 // small helper class which opens and closes the file - we use it just to get
 132 // a file handle for the given file name to pass it to some Win32 API function
 133 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 134
 135 class wxFileHandle
 136 {
 137 public:
 138     wxFileHandle(const wxString& filename)
 139     {
 140         m_hFile = ::CreateFile
 141                     (
 142                      filename,          // name
 143                      GENERIC_READ,      // access mask
 144                      0,                 // no sharing
 145                      NULL,              // no secutity attr
 146                      OPEN_EXISTING,     // creation disposition
 147                      0,                 // no flags
 148                      NULL               // no template file
 149                     );
 150
 151         if ( m_hFile == INVALID_HANDLE_VALUE )
 152         {
 153             wxLogSysError(_("Failed to open '%s' for reading"),
 154                           filename.c_str());
 155         }
 156     }
 157
 158     ~wxFileHandle()
 159     {
 160         if ( m_hFile != INVALID_HANDLE_VALUE )
 161         {
 162             if ( !::CloseHandle(m_hFile) )
 163             {
 164                 wxLogSysError(_("Failed to close file handle"));
 165             }
 166         }
 167     }
 168
 169     // return TRUE only if the file could be opened successfully
 170     bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
 171
 172     // get the handle
 173     operator HANDLE() const { return m_hFile; }
 174
 175 private:
 176     HANDLE m_hFile;
 177 };
 178
 179 #endif // __WIN32__
 180
 181 // ----------------------------------------------------------------------------
 182 // private functions
 183 // ----------------------------------------------------------------------------
 184
 185 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 186
 187 // convert between wxDateTime and FILETIME which is a 64-bit value representing
 188 // the number of 100-nanosecond intervals since January 1, 1601.
 189
 190 // the number of milliseconds between the Unix Epoch (January 1, 1970) and the
 191 // FILETIME reference point (January 1, 1601)
 192 static const wxLongLong FILETIME_EPOCH_OFFSET = wxLongLong(0xa97, 0x30b66800);
 193
 194 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 195 {
 196     wxLongLong ll(ft.dwHighDateTime, ft.dwLowDateTime);
 197
 198     // convert 100ns to ms
 199     ll /= 10000;
 200
 201     // move it to our Epoch
 202     ll -= FILETIME_EPOCH_OFFSET;
 203
 204     *dt = wxDateTime(ll);
 205 }
 206
 207 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 208 {
 209     // do the reverse of ConvertFileTimeToWx()
 210     wxLongLong ll = dt.GetValue();
 211     ll *= 10000;
 212     ll += FILETIME_EPOCH_OFFSET;
 213
 214     ft->dwHighDateTime = ll.GetHi();
 215     ft->dwLowDateTime = ll.GetLo();
 216 }
 217
 218 #endif // __WIN32__
 219
 220 // ============================================================================
 221 // implementation
 222 // ============================================================================
 223
 224 // ----------------------------------------------------------------------------
 225 // wxFileName construction
 226 // ----------------------------------------------------------------------------
 227
 228 void wxFileName::Assign( const wxFileName &filepath )
 229 {
 230     m_volume = filepath.GetVolume();
 231     m_dirs = filepath.GetDirs();
 232     m_name = filepath.GetName();
 233     m_ext = filepath.GetExt();
 234     m_relative = filepath.IsRelative();
 235 }
 236
 237 void wxFileName::Assign(const wxString& volume,
 238                         const wxString& path,
 239                         const wxString& name,
 240                         const wxString& ext,
 241                         wxPathFormat format )
 242 {
 243     SetPath( path, format );
 244
 245     m_volume = volume;
 246     m_ext = ext;
 247     m_name = name;
 248 }
 249
 250 void wxFileName::SetPath( const wxString &path, wxPathFormat format )
 251 {
 252     wxPathFormat my_format = GetFormat( format );
 253     wxString my_path = path;
 254
 255     m_dirs.Clear();
 256
 257     if (!my_path.empty())
 258     {
 259         // 1) Determine if the path is relative or absolute.
 260
 261         switch (my_format)
 262         {
 263             case wxPATH_MAC:
 264                 m_relative = ( my_path[0u] == wxT(':') );
 265                 // We then remove a leading ":". The reason is in our
 266                 // storage form for relative paths:
 267                 // ":dir:file.txt" actually means "./dir/file.txt" in
 268                 // DOS notation and should get stored as
 269                 // (relative) (dir) (file.txt)
 270                 // "::dir:file.txt" actually means "../dir/file.txt"
 271                 // stored as (relative) (..) (dir) (file.txt)
 272                 // This is important only for the Mac as an empty dir
 273                 // actually means <UP>, whereas under DOS, double
 274                 // slashes can be ignored: "\\\\" is the same as "\\".
 275                 if (m_relative)
 276                     my_path.Remove( 0, 1 );
 277                 break;
 278             case wxPATH_VMS:
 279                 // TODO: what is the relative path format here?
 280                 m_relative = FALSE;
 281                 break;
 282             case wxPATH_UNIX:
 283                 m_relative = ( my_path[0u] != wxT('/') );
 284                 break;
 285             case wxPATH_DOS:
 286                 m_relative = ( (my_path[0u] != wxT('/')) && (my_path[0u] != wxT('\\')) );
 287                 break;
 288             default:
 289                 wxFAIL_MSG( wxT("error") );
 290                 break;
 291         }
 292
 293         // 2) Break up the path into its members. If the original path
 294         //    was just "/" or "\\", m_dirs will be empty. We know from
 295         //    the m_relative field, if this means "nothing" or "root dir".
 296
 297         wxStringTokenizer tn( my_path, GetPathSeparators(my_format) );
 298
 299         while ( tn.HasMoreTokens() )
 300         {
 301             wxString token = tn.GetNextToken();
 302
 303             // Remove empty token under DOS and Unix, interpret them
 304             // as .. under Mac.
 305             if (token.empty())
 306             {
 307                 if (my_format == wxPATH_MAC)
 308                     m_dirs.Add( wxT("..") );
 309                 // else ignore
 310             }
 311             else
 312             {
 313                m_dirs.Add( token );
 314             }
 315         }
 316     }
 317     else
 318     {
 319         m_relative = TRUE;
 320     }
 321 }
 322
 323 void wxFileName::Assign(const wxString& fullpath,
 324                         wxPathFormat format)
 325 {
 326     wxString volume, path, name, ext;
 327     SplitPath(fullpath, &volume, &path, &name, &ext, format);
 328
 329     Assign(volume, path, name, ext, format);
 330 }
 331
 332 void wxFileName::Assign(const wxString& fullpathOrig,
 333                         const wxString& fullname,
 334                         wxPathFormat format)
 335 {
 336     // always recognize fullpath as directory, even if it doesn't end with a
 337     // slash
 338     wxString fullpath = fullpathOrig;
 339     if ( !wxEndsWithPathSeparator(fullpath) )
 340     {
 341         fullpath += GetPathSeparators(format)[0u];
 342     }
 343
 344     wxString volume, path, name, ext;
 345
 346     // do some consistency checks in debug mode: the name should be really just
 347     // the filename and the path should be really just a path
 348 #ifdef __WXDEBUG__
 349     wxString pathDummy, nameDummy, extDummy;
 350
 351     SplitPath(fullname, &pathDummy, &name, &ext, format);
 352
 353     wxASSERT_MSG( pathDummy.empty(),
 354                   _T("the file name shouldn't contain the path") );
 355
 356     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 357
 358     wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
 359                   _T("the path shouldn't contain file name nor extension") );
 360
 361 #else // !__WXDEBUG__
 362     SplitPath(fullname, NULL /* no path */, &name, &ext, format);
 363     SplitPath(fullpath, &volume, &path, NULL, NULL, format);
 364 #endif // __WXDEBUG__/!__WXDEBUG__
 365
 366     Assign(volume, path, name, ext, format);
 367 }
 368
 369 void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 370 {
 371     Assign(dir, _T(""), format);
 372 }
 373
 374 void wxFileName::Clear()
 375 {
 376     m_dirs.Clear();
 377
 378     m_volume =
 379     m_name =
 380     m_ext = wxEmptyString;
 381 }
 382
 383 /* static */
 384 wxFileName wxFileName::FileName(const wxString& file)
 385 {
 386     return wxFileName(file);
 387 }
 388
 389 /* static */
 390 wxFileName wxFileName::DirName(const wxString& dir)
 391 {
 392     wxFileName fn;
 393     fn.AssignDir(dir);
 394     return fn;
 395 }
 396
 397 // ----------------------------------------------------------------------------
 398 // existence tests
 399 // ----------------------------------------------------------------------------
 400
 401 bool wxFileName::FileExists()
 402 {
 403     return wxFileName::FileExists( GetFullPath() );
 404 }
 405
 406 bool wxFileName::FileExists( const wxString &file )
 407 {
 408     return ::wxFileExists( file );
 409 }
 410
 411 bool wxFileName::DirExists()
 412 {
 413     return wxFileName::DirExists( GetFullPath() );
 414 }
 415
 416 bool wxFileName::DirExists( const wxString &dir )
 417 {
 418     return ::wxDirExists( dir );
 419 }
 420
 421 // ----------------------------------------------------------------------------
 422 // CWD and HOME stuff
 423 // ----------------------------------------------------------------------------
 424
 425 void wxFileName::AssignCwd(const wxString& volume)
 426 {
 427     AssignDir(wxFileName::GetCwd(volume));
 428 }
 429
 430 /* static */
 431 wxString wxFileName::GetCwd(const wxString& volume)
 432 {
 433     // if we have the volume, we must get the current directory on this drive
 434     // and to do this we have to chdir to this volume - at least under Windows,
 435     // I don't know how to get the current drive on another volume elsewhere
 436     // (TODO)
 437     wxString cwdOld;
 438     if ( !volume.empty() )
 439     {
 440         cwdOld = wxGetCwd();
 441         SetCwd(volume + GetVolumeSeparator());
 442     }
 443
 444     wxString cwd = ::wxGetCwd();
 445
 446     if ( !volume.empty() )
 447     {
 448         SetCwd(cwdOld);
 449     }
 450
 451     return cwd;
 452 }
 453
 454 bool wxFileName::SetCwd()
 455 {
 456     return wxFileName::SetCwd( GetFullPath() );
 457 }
 458
 459 bool wxFileName::SetCwd( const wxString &cwd )
 460 {
 461     return ::wxSetWorkingDirectory( cwd );
 462 }
 463
 464 void wxFileName::AssignHomeDir()
 465 {
 466     AssignDir(wxFileName::GetHomeDir());
 467 }
 468
 469 wxString wxFileName::GetHomeDir()
 470 {
 471     return ::wxGetHomeDir();
 472 }
 473
 474 void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
 475 {
 476     wxString tempname = CreateTempFileName(prefix, fileTemp);
 477     if ( tempname.empty() )
 478     {
 479         // error, failed to get temp file name
 480         Clear();
 481     }
 482     else // ok
 483     {
 484         Assign(tempname);
 485     }
 486 }
 487
 488 /* static */
 489 wxString
 490 wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
 491 {
 492     wxString path, dir, name;
 493
 494     // use the directory specified by the prefix
 495     SplitPath(prefix, &dir, &name, NULL /* extension */);
 496
 497 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 498
 499 #ifdef __WIN32__
 500     if ( dir.empty() )
 501     {
 502         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
 503         {
 504             wxLogLastError(_T("GetTempPath"));
 505         }
 506
 507         if ( dir.empty() )
 508         {
 509             // GetTempFileName() fails if we pass it an empty string
 510             dir = _T('.');
 511         }
 512     }
 513
 514     if ( !::GetTempFileName(dir, name, 0, wxStringBuffer(path, MAX_PATH + 1)) )
 515     {
 516         wxLogLastError(_T("GetTempFileName"));
 517
 518         path.clear();
 519     }
 520 #else // Win16
 521     if ( !::GetTempFileName(NULL, prefix, 0, wxStringBuffer(path, 1025)) )
 522     {
 523         path.clear();
 524     }
 525 #endif // Win32/16
 526
 527 #elif defined(__WXPM__)
 528     // for now just create a file
 529     //
 530     // future enhancements can be to set some extended attributes for file
 531     // systems OS/2 supports that have them (HPFS, FAT32) and security
 532     // (HPFS386)
 533     static const wxChar *szMktempSuffix = wxT("XXX");
 534     path << dir << _T('/') << name << szMktempSuffix;
 535
 536     // Temporarily remove - MN
 537     #ifndef __WATCOMC__
 538         ::DosCreateDir(wxStringBuffer(path, MAX_PATH), NULL);
 539     #endif
 540
 541 #else // !Windows, !OS/2
 542     if ( dir.empty() )
 543     {
 544 #if defined(__WXMAC__) && !defined(__DARWIN__)
 545         dir = wxMacFindFolder(  (short) kOnSystemDisk, pTemporaryFolder, kCreateFolder ) ;
 546 #else // !Mac
 547         dir = wxGetenv(_T("TMP"));
 548         if ( dir.empty() )
 549         {
 550             dir = wxGetenv(_T("TEMP"));
 551         }
 552
 553         if ( dir.empty() )
 554         {
 555             // default
 556             #ifdef __DOS__
 557                 dir = _T(".");
 558             #else
 559                 dir = _T("/tmp");
 560             #endif
 561         }
 562 #endif // Mac/!Mac
 563     }
 564
 565     path = dir;
 566
 567     if ( !wxEndsWithPathSeparator(dir) &&
 568             (name.empty() || !wxIsPathSeparator(name[0u])) )
 569     {
 570         path += wxFILE_SEP_PATH;
 571     }
 572
 573     path += name;
 574
 575 #if defined(HAVE_MKSTEMP)
 576     // scratch space for mkstemp()
 577     path += _T("XXXXXX");
 578
 579     // can use the cast here because the length doesn't change and the string
 580     // is not shared
 581     int fdTemp = mkstemp((char *)path.mb_str());
 582     if ( fdTemp == -1 )
 583     {
 584         // this might be not necessary as mkstemp() on most systems should have
 585         // already done it but it doesn't hurt neither...
 586         path.clear();
 587     }
 588     else // mkstemp() succeeded
 589     {
 590         // avoid leaking the fd
 591         if ( fileTemp )
 592         {
 593             fileTemp->Attach(fdTemp);
 594         }
 595         else
 596         {
 597             close(fdTemp);
 598         }
 599     }
 600 #else // !HAVE_MKSTEMP
 601
 602 #ifdef HAVE_MKTEMP
 603     // same as above
 604     path += _T("XXXXXX");
 605
 606     if ( !mktemp((char *)path.mb_str()) )
 607     {
 608         path.clear();
 609     }
 610 #else // !HAVE_MKTEMP (includes __DOS__)
 611     // generate the unique file name ourselves
 612     #ifndef __DOS__
 613     path << (unsigned int)getpid();
 614     #endif
 615
 616     wxString pathTry;
 617
 618     static const size_t numTries = 1000;
 619     for ( size_t n = 0; n < numTries; n++ )
 620     {
 621         // 3 hex digits is enough for numTries == 1000 < 4096
 622         pathTry = path + wxString::Format(_T("%.03x"), n);
 623         if ( !wxFile::Exists(pathTry) )
 624         {
 625             break;
 626         }
 627
 628         pathTry.clear();
 629     }
 630
 631     path = pathTry;
 632 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 633
 634     if ( !path.empty() )
 635     {
 636     }
 637 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 638
 639 #endif // Windows/!Windows
 640
 641     if ( path.empty() )
 642     {
 643         wxLogSysError(_("Failed to create a temporary file name"));
 644     }
 645     else if ( fileTemp && !fileTemp->IsOpened() )
 646     {
 647         // open the file - of course, there is a race condition here, this is
 648         // why we always prefer using mkstemp()...
 649         //
 650         // NB: GetTempFileName() under Windows creates the file, so using
 651         //     write_excl there would fail
 652         if ( !fileTemp->Open(path,
 653 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 654                              wxFile::write,
 655 #else
 656                              wxFile::write_excl,
 657 #endif
 658                              wxS_IRUSR | wxS_IWUSR) )
 659         {
 660             // FIXME: If !ok here should we loop and try again with another
 661             //        file name?  That is the standard recourse if open(O_EXCL)
 662             //        fails, though of course it should be protected against
 663             //        possible infinite looping too.
 664
 665             wxLogError(_("Failed to open temporary file."));
 666
 667             path.clear();
 668         }
 669     }
 670
 671     return path;
 672 }
 673
 674 // ----------------------------------------------------------------------------
 675 // directory operations
 676 // ----------------------------------------------------------------------------
 677
 678 bool wxFileName::Mkdir( int perm, bool full )
 679 {
 680     return wxFileName::Mkdir( GetFullPath(), perm, full );
 681 }
 682
 683 bool wxFileName::Mkdir( const wxString &dir, int perm, bool full )
 684 {
 685     if (full)
 686     {
 687         wxFileName filename(dir);
 688         wxArrayString dirs = filename.GetDirs();
 689         dirs.Add(filename.GetName());
 690
 691         size_t count = dirs.GetCount();
 692         size_t i;
 693         wxString currPath;
 694         int noErrors = 0;
 695         for ( i = 0; i < count; i++ )
 696         {
 697             currPath += dirs[i];
 698
 699             if (currPath.Last() == wxT(':'))
 700             {
 701                 // Can't create a root directory so continue to next dir
 702                 currPath += wxFILE_SEP_PATH;
 703                 continue;
 704             }
 705
 706             if (!DirExists(currPath))
 707                 if (!wxMkdir(currPath, perm))
 708                     noErrors ++;
 709
 710             if ( (i < (count-1)) )
 711                 currPath += wxFILE_SEP_PATH;
 712         }
 713
 714         return (noErrors == 0);
 715
 716     }
 717     else
 718         return ::wxMkdir( dir, perm );
 719 }
 720
 721 bool wxFileName::Rmdir()
 722 {
 723     return wxFileName::Rmdir( GetFullPath() );
 724 }
 725
 726 bool wxFileName::Rmdir( const wxString &dir )
 727 {
 728     return ::wxRmdir( dir );
 729 }
 730
 731 // ----------------------------------------------------------------------------
 732 // path normalization
 733 // ----------------------------------------------------------------------------
 734
 735 bool wxFileName::Normalize(wxPathNormalize flags,
 736                            const wxString& cwd,
 737                            wxPathFormat format)
 738 {
 739     // the existing path components
 740     wxArrayString dirs = GetDirs();
 741
 742     // the path to prepend in front to make the path absolute
 743     wxFileName curDir;
 744
 745     format = GetFormat(format);
 746
 747     // make the path absolute
 748     if ( (flags & wxPATH_NORM_ABSOLUTE) && m_relative )
 749     {
 750         if ( cwd.empty() )
 751         {
 752             curDir.AssignCwd(GetVolume());
 753         }
 754         else // cwd provided
 755         {
 756             curDir.AssignDir(cwd);
 757         }
 758
 759 #if 0
 760         // the path may be not absolute because it doesn't have the volume name
 761         // but in this case we shouldn't modify the directory components of it
 762         // but just set the current volume
 763         if ( !HasVolume() && curDir.HasVolume() )
 764         {
 765             SetVolume(curDir.GetVolume());
 766
 767             if ( IsAbsolute() )
 768             {
 769                 // yes, it was the case - we don't need curDir then
 770                 curDir.Clear();
 771             }
 772         }
 773 #endif
 774         m_relative = FALSE;
 775     }
 776
 777     // handle ~ stuff under Unix only
 778     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
 779     {
 780         if ( !dirs.IsEmpty() )
 781         {
 782             wxString dir = dirs[0u];
 783             if ( !dir.empty() && dir[0u] == _T('~') )
 784             {
 785                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
 786
 787                 dirs.RemoveAt(0u);
 788             }
 789         }
 790     }
 791
 792     // transform relative path into abs one
 793     if ( curDir.IsOk() )
 794     {
 795         wxArrayString dirsNew = curDir.GetDirs();
 796         size_t count = dirs.GetCount();
 797         for ( size_t n = 0; n < count; n++ )
 798         {
 799             dirsNew.Add(dirs[n]);
 800         }
 801
 802         dirs = dirsNew;
 803     }
 804
 805     // now deal with ".", ".." and the rest
 806     m_dirs.Empty();
 807     size_t count = dirs.GetCount();
 808     for ( size_t n = 0; n < count; n++ )
 809     {
 810         wxString dir = dirs[n];
 811
 812         if ( flags & wxPATH_NORM_DOTS )
 813         {
 814             if ( dir == wxT(".") )
 815             {
 816                 // just ignore
 817                 continue;
 818             }
 819
 820             if ( dir == wxT("..") )
 821             {
 822                 if ( m_dirs.IsEmpty() )
 823                 {
 824                     wxLogError(_("The path '%s' contains too many \"..\"!"),
 825                                GetFullPath().c_str());
 826                     return FALSE;
 827                 }
 828
 829                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
 830                 continue;
 831             }
 832         }
 833
 834         if ( flags & wxPATH_NORM_ENV_VARS )
 835         {
 836             dir = wxExpandEnvVars(dir);
 837         }
 838
 839         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 840         {
 841             dir.MakeLower();
 842         }
 843
 844         m_dirs.Add(dir);
 845     }
 846
 847     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 848     {
 849         // VZ: expand env vars here too?
 850
 851         m_name.MakeLower();
 852         m_ext.MakeLower();
 853     }
 854
 855 #if defined(__WIN32__)
 856     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
 857     {
 858         Assign(GetLongPath());
 859     }
 860 #endif // Win32
 861
 862     return TRUE;
 863 }
 864
 865 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
 866 {
 867     wxFileName fnBase(pathBase, format);
 868
 869     // get cwd only once - small time saving
 870     wxString cwd = wxGetCwd();
 871     Normalize(wxPATH_NORM_ALL, cwd, format);
 872     fnBase.Normalize(wxPATH_NORM_ALL, cwd, format);
 873
 874     bool withCase = IsCaseSensitive(format);
 875
 876     // we can't do anything if the files live on different volumes
 877     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
 878     {
 879         // nothing done
 880         return FALSE;
 881     }
 882
 883     // same drive, so we don't need our volume
 884     m_volume.clear();
 885
 886     // remove common directories starting at the top
 887     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
 888                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
 889     {
 890         m_dirs.RemoveAt(0);
 891         fnBase.m_dirs.RemoveAt(0);
 892     }
 893
 894     // add as many ".." as needed
 895     size_t count = fnBase.m_dirs.GetCount();
 896     for ( size_t i = 0; i < count; i++ )
 897     {
 898         m_dirs.Insert(wxT(".."), 0u);
 899     }
 900
 901     m_relative = TRUE;
 902
 903     // we were modified
 904     return TRUE;
 905 }
 906
 907 // ----------------------------------------------------------------------------
 908 // filename kind tests
 909 // ----------------------------------------------------------------------------
 910
 911 bool wxFileName::SameAs(const wxFileName &filepath, wxPathFormat format)
 912 {
 913     wxFileName fn1 = *this,
 914                fn2 = filepath;
 915
 916     // get cwd only once - small time saving
 917     wxString cwd = wxGetCwd();
 918     fn1.Normalize(wxPATH_NORM_ALL, cwd, format);
 919     fn2.Normalize(wxPATH_NORM_ALL, cwd, format);
 920
 921     if ( fn1.GetFullPath() == fn2.GetFullPath() )
 922         return TRUE;
 923
 924     // TODO: compare inodes for Unix, this works even when filenames are
 925     //       different but files are the same (symlinks) (VZ)
 926
 927     return FALSE;
 928 }
 929
 930 /* static */
 931 bool wxFileName::IsCaseSensitive( wxPathFormat format )
 932 {
 933     // only Unix filenames are truely case-sensitive
 934     return GetFormat(format) == wxPATH_UNIX;
 935 }
 936
 937 /* static */
 938 wxString wxFileName::GetVolumeSeparator(wxPathFormat format)
 939 {
 940     wxString sepVol;
 941
 942     if ( (GetFormat(format) == wxPATH_DOS) ||
 943          (GetFormat(format) == wxPATH_VMS) )
 944     {
 945         sepVol = wxFILE_SEP_DSK;
 946     }
 947     //else: leave empty
 948
 949     return sepVol;
 950 }
 951
 952 /* static */
 953 wxString wxFileName::GetPathSeparators(wxPathFormat format)
 954 {
 955     wxString seps;
 956     switch ( GetFormat(format) )
 957     {
 958         case wxPATH_DOS:
 959             // accept both as native APIs do but put the native one first as
 960             // this is the one we use in GetFullPath()
 961             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
 962             break;
 963
 964         default:
 965             wxFAIL_MSG( _T("unknown wxPATH_XXX style") );
 966             // fall through
 967
 968         case wxPATH_UNIX:
 969             seps = wxFILE_SEP_PATH_UNIX;
 970             break;
 971
 972         case wxPATH_MAC:
 973             seps = wxFILE_SEP_PATH_MAC;
 974             break;
 975
 976         case wxPATH_VMS:
 977             seps = wxFILE_SEP_PATH_VMS;
 978             break;
 979     }
 980
 981     return seps;
 982 }
 983
 984 /* static */
 985 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
 986 {
 987     // wxString::Find() doesn't work as expected with NUL - it will always find
 988     // it, so it is almost surely a bug if this function is called with NUL arg
 989     wxASSERT_MSG( ch != _T('\0'), _T("shouldn't be called with NUL") );
 990
 991     return GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
 992 }
 993
 994 bool wxFileName::IsWild( wxPathFormat format )
 995 {
 996     // FIXME: this is probably false for Mac and this is surely wrong for most
 997     //        of Unix shells (think about "[...]")
 998     (void)format;
 999     return m_name.find_first_of(_T("*?")) != wxString::npos;
1000 }
1001
1002 // ----------------------------------------------------------------------------
1003 // path components manipulation
1004 // ----------------------------------------------------------------------------
1005
1006 void wxFileName::AppendDir( const wxString &dir )
1007 {
1008     m_dirs.Add( dir );
1009 }
1010
1011 void wxFileName::PrependDir( const wxString &dir )
1012 {
1013     m_dirs.Insert( dir, 0 );
1014 }
1015
1016 void wxFileName::InsertDir( int before, const wxString &dir )
1017 {
1018     m_dirs.Insert( dir, before );
1019 }
1020
1021 void wxFileName::RemoveDir( int pos )
1022 {
1023     m_dirs.Remove( (size_t)pos );
1024 }
1025
1026 // ----------------------------------------------------------------------------
1027 // accessors
1028 // ----------------------------------------------------------------------------
1029
1030 void wxFileName::SetFullName(const wxString& fullname)
1031 {
1032     SplitPath(fullname, NULL /* no path */, &m_name, &m_ext);
1033 }
1034
1035 wxString wxFileName::GetFullName() const
1036 {
1037     wxString fullname = m_name;
1038     if ( !m_ext.empty() )
1039     {
1040         fullname << wxFILE_SEP_EXT << m_ext;
1041     }
1042
1043     return fullname;
1044 }
1045
1046 wxString wxFileName::GetPath( bool add_separator, wxPathFormat format ) const
1047 {
1048     format = GetFormat( format );
1049
1050     wxString fullpath;
1051
1052     // the leading character
1053     if ( format == wxPATH_MAC && m_relative )
1054     {
1055          fullpath += wxFILE_SEP_PATH_MAC;
1056     }
1057     else if ( format == wxPATH_DOS )
1058     {
1059          if (!m_relative)
1060              fullpath += wxFILE_SEP_PATH_DOS;
1061     }
1062     else if ( format == wxPATH_UNIX )
1063     {
1064          if (!m_relative)
1065              fullpath += wxFILE_SEP_PATH_UNIX;
1066     }
1067
1068     // then concatenate all the path components using the path separator
1069     size_t dirCount = m_dirs.GetCount();
1070     if ( dirCount )
1071     {
1072         if ( format == wxPATH_VMS )
1073         {
1074             fullpath += wxT('[');
1075         }
1076
1077
1078         for ( size_t i = 0; i < dirCount; i++ )
1079         {
1080             // TODO: What to do with ".." under VMS
1081
1082             switch (format)
1083             {
1084                 case wxPATH_MAC:
1085                 {
1086                     if (m_dirs[i] == wxT("."))
1087                         break;
1088                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1089                          fullpath += m_dirs[i];
1090                     fullpath += wxT(':');
1091                     break;
1092                 }
1093                 case wxPATH_DOS:
1094                 {
1095                     fullpath += m_dirs[i];
1096                     fullpath += wxT('\\');
1097                     break;
1098                 }
1099                 case wxPATH_UNIX:
1100                 {
1101                     fullpath += m_dirs[i];
1102                     fullpath += wxT('/');
1103                     break;
1104                 }
1105                 case wxPATH_VMS:
1106                 {
1107                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1108                         fullpath += m_dirs[i];
1109                     if (i == dirCount-1)
1110                         fullpath += wxT(']');
1111                     else
1112                         fullpath += wxT('.');
1113                     break;
1114                 }
1115                 default:
1116                 {
1117                     wxFAIL_MSG( wxT("error") );
1118                 }
1119             }
1120         }
1121     }
1122
1123
1124
1125     return fullpath;
1126 }
1127
1128 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1129 {
1130     format = GetFormat(format);
1131
1132     wxString fullpath;
1133
1134     // first put the volume
1135     if ( !m_volume.empty() )
1136     {
1137         {
1138             // Special Windows UNC paths hack, part 2: undo what we did in
1139             // SplitPath() and make an UNC path if we have a drive which is not a
1140             // single letter (hopefully the network shares can't be one letter only
1141             // although I didn't find any authoritative docs on this)
1142             if ( format == wxPATH_DOS && m_volume.length() > 1 )
1143             {
1144                 fullpath << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << m_volume;
1145             }
1146             else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
1147             {
1148                 fullpath << m_volume << GetVolumeSeparator(format);
1149             }
1150             // else ignore
1151         }
1152     }
1153
1154     // the leading character
1155     if ( format == wxPATH_MAC && m_relative )
1156     {
1157          fullpath += wxFILE_SEP_PATH_MAC;
1158     }
1159     else if ( format == wxPATH_DOS )
1160     {
1161          if (!m_relative)
1162              fullpath += wxFILE_SEP_PATH_DOS;
1163     }
1164     else if ( format == wxPATH_UNIX )
1165     {
1166          if (!m_relative)
1167              fullpath += wxFILE_SEP_PATH_UNIX;
1168     }
1169
1170     // then concatenate all the path components using the path separator
1171     size_t dirCount = m_dirs.GetCount();
1172     if ( dirCount )
1173     {
1174         if ( format == wxPATH_VMS )
1175         {
1176             fullpath += wxT('[');
1177         }
1178
1179
1180         for ( size_t i = 0; i < dirCount; i++ )
1181         {
1182             // TODO: What to do with ".." under VMS
1183
1184             switch (format)
1185             {
1186                 case wxPATH_MAC:
1187                 {
1188                     if (m_dirs[i] == wxT("."))
1189                         break;
1190                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1191                          fullpath += m_dirs[i];
1192                     fullpath += wxT(':');
1193                     break;
1194                 }
1195                 case wxPATH_DOS:
1196                 {
1197                     fullpath += m_dirs[i];
1198                     fullpath += wxT('\\');
1199                     break;
1200                 }
1201                 case wxPATH_UNIX:
1202                 {
1203                     fullpath += m_dirs[i];
1204                     fullpath += wxT('/');
1205                     break;
1206                 }
1207                 case wxPATH_VMS:
1208                 {
1209                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1210                         fullpath += m_dirs[i];
1211                     if (i == dirCount-1)
1212                         fullpath += wxT(']');
1213                     else
1214                         fullpath += wxT('.');
1215                     break;
1216                 }
1217                 default:
1218                 {
1219                     wxFAIL_MSG( wxT("error") );
1220                 }
1221             }
1222         }
1223     }
1224
1225     // finally add the file name and extension
1226     fullpath += GetFullName();
1227
1228     return fullpath;
1229 }
1230
1231 // Return the short form of the path (returns identity on non-Windows platforms)
1232 wxString wxFileName::GetShortPath() const
1233 {
1234 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__)
1235     wxString path(GetFullPath());
1236     wxString pathOut;
1237     DWORD sz = ::GetShortPathName(path, NULL, 0);
1238     bool ok = sz != 0;
1239     if ( ok )
1240     {
1241         ok = ::GetShortPathName
1242                (
1243                 path,
1244                 pathOut.GetWriteBuf(sz),
1245                 sz
1246                ) != 0;
1247         pathOut.UngetWriteBuf();
1248     }
1249     if (ok)
1250         return pathOut;
1251
1252     return path;
1253 #else
1254     return GetFullPath();
1255 #endif
1256 }
1257
1258 // Return the long form of the path (returns identity on non-Windows platforms)
1259 wxString wxFileName::GetLongPath() const
1260 {
1261     wxString pathOut,
1262              path = GetFullPath();
1263
1264 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1265     bool success = FALSE;
1266
1267     // VZ: this code was disabled, why?
1268 #if 0 // wxUSE_DYNAMIC_LOADER
1269     typedef DWORD (*GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1270
1271     static bool s_triedToLoad = FALSE;
1272
1273     if ( !s_triedToLoad )
1274     {
1275         s_triedToLoad = TRUE;
1276         wxDynamicLibrary dllKernel(_T("kernel32"));
1277         if ( dllKernel.IsLoaded() )
1278         {
1279             // may succeed or fail depending on the Windows version
1280             static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1281 #ifdef _UNICODE
1282             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameW"));
1283 #else
1284             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameA"));
1285 #endif
1286
1287             if ( s_pfnGetLongPathName )
1288             {
1289                 DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
1290                 bool ok = dwSize > 0;
1291
1292                 if ( ok )
1293                 {
1294                     DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
1295                     ok = sz != 0;
1296                     if ( ok )
1297                     {
1298                         ok = (*s_pfnGetLongPathName)
1299                                 (
1300                                 path,
1301                                 pathOut.GetWriteBuf(sz),
1302                                 sz
1303                                 ) != 0;
1304                         pathOut.UngetWriteBuf();
1305
1306                         success = TRUE;
1307                     }
1308                 }
1309             }
1310         }
1311     }
1312     if (success)
1313         return pathOut;
1314 #endif // wxUSE_DYNAMIC_LOADER
1315
1316     if (!success)
1317     {
1318         // The OS didn't support GetLongPathName, or some other error.
1319         // We need to call FindFirstFile on each component in turn.
1320
1321         WIN32_FIND_DATA findFileData;
1322         HANDLE hFind;
1323         pathOut = wxEmptyString;
1324
1325         wxArrayString dirs = GetDirs();
1326         dirs.Add(GetFullName());
1327
1328         wxString tmpPath;
1329
1330         size_t count = dirs.GetCount();
1331         for ( size_t i = 0; i < count; i++ )
1332         {
1333             // We're using pathOut to collect the long-name path, but using a
1334             // temporary for appending the last path component which may be
1335             // short-name
1336             tmpPath = pathOut + dirs[i];
1337
1338             if ( tmpPath.empty() )
1339                 continue;
1340
1341             if ( tmpPath.Last() == wxT(':') )
1342             {
1343                 // Can't pass a drive and root dir to FindFirstFile,
1344                 // so continue to next dir
1345                 tmpPath += wxFILE_SEP_PATH;
1346                 pathOut = tmpPath;
1347                 continue;
1348             }
1349
1350             hFind = ::FindFirstFile(tmpPath, &findFileData);
1351             if (hFind == INVALID_HANDLE_VALUE)
1352             {
1353                 // Error: return immediately with the original path
1354                 return path;
1355             }
1356
1357             pathOut += findFileData.cFileName;
1358             if ( (i < (count-1)) )
1359                 pathOut += wxFILE_SEP_PATH;
1360
1361             ::FindClose(hFind);
1362         }
1363     }
1364 #else // !Win32
1365     pathOut = path;
1366 #endif // Win32/!Win32
1367
1368     return pathOut;
1369 }
1370
1371 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1372 {
1373     if (format == wxPATH_NATIVE)
1374     {
1375 #if defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__)
1376         format = wxPATH_DOS;
1377 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1378         format = wxPATH_MAC;
1379 #elif defined(__VMS)
1380         format = wxPATH_VMS;
1381 #else
1382         format = wxPATH_UNIX;
1383 #endif
1384     }
1385     return format;
1386 }
1387
1388 // ----------------------------------------------------------------------------
1389 // path splitting function
1390 // ----------------------------------------------------------------------------
1391
1392 /* static */
1393 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
1394                            wxString *pstrVolume,
1395                            wxString *pstrPath,
1396                            wxString *pstrName,
1397                            wxString *pstrExt,
1398                            wxPathFormat format)
1399 {
1400     format = GetFormat(format);
1401
1402     wxString fullpath = fullpathWithVolume;
1403
1404     // under VMS the end of the path is ']', not the path separator used to
1405     // separate the components
1406     wxString sepPath = format == wxPATH_VMS ? wxString(_T(']'))
1407                                             : GetPathSeparators(format);
1408
1409     // special Windows UNC paths hack: transform \\share\path into share:path
1410     if ( format == wxPATH_DOS )
1411     {
1412         if ( fullpath.length() >= 4 &&
1413                 fullpath[0u] == wxFILE_SEP_PATH_DOS &&
1414                     fullpath[1u] == wxFILE_SEP_PATH_DOS )
1415         {
1416             fullpath.erase(0, 2);
1417
1418             size_t posFirstSlash = fullpath.find_first_of(sepPath);
1419             if ( posFirstSlash != wxString::npos )
1420             {
1421                 fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1422
1423                 // UNC paths are always absolute, right? (FIXME)
1424                 fullpath.insert(posFirstSlash + 1, wxFILE_SEP_PATH_DOS);
1425             }
1426         }
1427     }
1428
1429     // We separate the volume here
1430     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1431     {
1432         wxString sepVol = GetVolumeSeparator(format);
1433
1434         size_t posFirstColon = fullpath.find_first_of(sepVol);
1435         if ( posFirstColon != wxString::npos )
1436         {
1437             if ( pstrVolume )
1438             {
1439                 *pstrVolume = fullpath.Left(posFirstColon);
1440             }
1441
1442             // remove the volume name and the separator from the full path
1443             fullpath.erase(0, posFirstColon + sepVol.length());
1444         }
1445     }
1446
1447     // find the positions of the last dot and last path separator in the path
1448     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
1449     size_t posLastSlash = fullpath.find_last_of(sepPath);
1450
1451     if ( (posLastDot != wxString::npos) &&
1452             ((format == wxPATH_UNIX) || (format == wxPATH_VMS)) )
1453     {
1454         if ( (posLastDot == 0) ||
1455              (fullpath[posLastDot - 1] == sepPath[0u] ) )
1456         {
1457             // under Unix and VMS, dot may be (and commonly is) the first
1458             // character of the filename, don't treat the entire filename as
1459             // extension in this case
1460             posLastDot = wxString::npos;
1461         }
1462     }
1463
1464     // if we do have a dot and a slash, check that the dot is in the name part
1465     if ( (posLastDot != wxString::npos) &&
1466          (posLastSlash != wxString::npos) &&
1467          (posLastDot < posLastSlash) )
1468     {
1469         // the dot is part of the path, not the start of the extension
1470         posLastDot = wxString::npos;
1471     }
1472
1473     // now fill in the variables provided by user
1474     if ( pstrPath )
1475     {
1476         if ( posLastSlash == wxString::npos )
1477         {
1478             // no path at all
1479             pstrPath->Empty();
1480         }
1481         else
1482         {
1483             // take everything up to the path separator but take care to make
1484             // the path equal to something like '/', not empty, for the files
1485             // immediately under root directory
1486             size_t len = posLastSlash;
1487             if ( !len )
1488                 len++;
1489
1490             *pstrPath = fullpath.Left(len);
1491
1492             // special VMS hack: remove the initial bracket
1493             if ( format == wxPATH_VMS )
1494             {
1495                 if ( (*pstrPath)[0u] == _T('[') )
1496                     pstrPath->erase(0, 1);
1497             }
1498         }
1499     }
1500
1501     if ( pstrName )
1502     {
1503         // take all characters starting from the one after the last slash and
1504         // up to, but excluding, the last dot
1505         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
1506         size_t count;
1507         if ( posLastDot == wxString::npos )
1508         {
1509             // take all until the end
1510             count = wxString::npos;
1511         }
1512         else if ( posLastSlash == wxString::npos )
1513         {
1514             count = posLastDot;
1515         }
1516         else // have both dot and slash
1517         {
1518             count = posLastDot - posLastSlash - 1;
1519         }
1520
1521         *pstrName = fullpath.Mid(nStart, count);
1522     }
1523
1524     if ( pstrExt )
1525     {
1526         if ( posLastDot == wxString::npos )
1527         {
1528             // no extension
1529             pstrExt->Empty();
1530         }
1531         else
1532         {
1533             // take everything after the dot
1534             *pstrExt = fullpath.Mid(posLastDot + 1);
1535         }
1536     }
1537 }
1538
1539 /* static */
1540 void wxFileName::SplitPath(const wxString& fullpath,
1541                            wxString *path,
1542                            wxString *name,
1543                            wxString *ext,
1544                            wxPathFormat format)
1545 {
1546     wxString volume;
1547     SplitPath(fullpath, &volume, path, name, ext, format);
1548
1549     if ( path && !volume.empty() )
1550     {
1551         path->Prepend(volume + GetVolumeSeparator(format));
1552     }
1553 }
1554
1555 // ----------------------------------------------------------------------------
1556 // time functions
1557 // ----------------------------------------------------------------------------
1558
1559 bool wxFileName::SetTimes(const wxDateTime *dtCreate,
1560                           const wxDateTime *dtAccess,
1561                           const wxDateTime *dtMod)
1562 {
1563 #if defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
1564     if ( !dtAccess && !dtMod )
1565     {
1566         // can't modify the creation time anyhow, don't try
1567         return TRUE;
1568     }
1569
1570     // if dtAccess or dtMod is not specified, use the other one (which must be
1571     // non NULL because of the test above) for both times
1572     utimbuf utm;
1573     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
1574     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
1575     if ( utime(GetFullPath(), &utm) == 0 )
1576     {
1577         return TRUE;
1578     }
1579 #elif defined(__WIN32__)
1580     wxFileHandle fh(GetFullPath());
1581     if ( fh.IsOk() )
1582     {
1583         FILETIME ftAccess, ftCreate, ftWrite;
1584
1585         if ( dtCreate )
1586             ConvertWxToFileTime(&ftCreate, *dtCreate);
1587         if ( dtAccess )
1588             ConvertWxToFileTime(&ftAccess, *dtAccess);
1589         if ( dtMod )
1590             ConvertWxToFileTime(&ftWrite, *dtMod);
1591
1592         if ( ::SetFileTime(fh,
1593                            dtCreate ? &ftCreate : NULL,
1594                            dtAccess ? &ftAccess : NULL,
1595                            dtMod ? &ftWrite : NULL) )
1596         {
1597             return TRUE;
1598         }
1599     }
1600 #else // other platform
1601 #endif // platforms
1602
1603     wxLogSysError(_("Failed to modify file times for '%s'"),
1604                   GetFullPath().c_str());
1605
1606     return FALSE;
1607 }
1608
1609 bool wxFileName::Touch()
1610 {
1611 #if defined(__UNIX_LIKE__)
1612     // under Unix touching file is simple: just pass NULL to utime()
1613     if ( utime(GetFullPath(), NULL) == 0 )
1614     {
1615         return TRUE;
1616     }
1617
1618     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
1619
1620     return FALSE;
1621 #else // other platform
1622     wxDateTime dtNow = wxDateTime::Now();
1623
1624     return SetTimes(NULL /* don't change create time */, &dtNow, &dtNow);
1625 #endif // platforms
1626 }
1627
1628 bool wxFileName::GetTimes(wxDateTime *dtAccess,
1629                           wxDateTime *dtMod,
1630                           wxDateTime *dtChange) const
1631 {
1632 #if defined(__UNIX_LIKE__) || defined(__WXMAC__) || (defined(__DOS__) && defined(__WATCOMC__))
1633     wxStructStat stBuf;
1634     if ( wxStat(GetFullPath(), &stBuf) == 0 )
1635     {
1636         if ( dtAccess )
1637             dtAccess->Set(stBuf.st_atime);
1638         if ( dtMod )
1639             dtMod->Set(stBuf.st_mtime);
1640         if ( dtChange )
1641             dtChange->Set(stBuf.st_ctime);
1642
1643         return TRUE;
1644     }
1645 #elif defined(__WIN32__)
1646     wxFileHandle fh(GetFullPath());
1647     if ( fh.IsOk() )
1648     {
1649         FILETIME ftAccess, ftCreate, ftWrite;
1650
1651         if ( ::GetFileTime(fh,
1652                            dtMod ? &ftCreate : NULL,
1653                            dtAccess ? &ftAccess : NULL,
1654                            dtChange ? &ftWrite : NULL) )
1655         {
1656             if ( dtMod )
1657                 ConvertFileTimeToWx(dtMod, ftCreate);
1658             if ( dtAccess )
1659                 ConvertFileTimeToWx(dtAccess, ftAccess);
1660             if ( dtChange )
1661                 ConvertFileTimeToWx(dtChange, ftWrite);
1662
1663             return TRUE;
1664         }
1665     }
1666 #else // other platform
1667 #endif // platforms
1668
1669     wxLogSysError(_("Failed to retrieve file times for '%s'"),
1670                   GetFullPath().c_str());
1671
1672     return FALSE;
1673 }
1674