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 licence
  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 specification
  51                  . separator between directory and subdirectory
  52                  ] between directory and file
  53  */
  54
  55 // ============================================================================
  56 // declarations
  57 // ============================================================================
  58
  59 // ----------------------------------------------------------------------------
  60 // headers
  61 // ----------------------------------------------------------------------------
  62
  63 // For compilers that support precompilation, includes "wx.h".
  64 #include "wx/wxprec.h"
  65
  66 #ifdef __BORLANDC__
  67 #pragma hdrstop
  68 #endif
  69
  70 #ifndef WX_PRECOMP
  71     #ifdef __WXMSW__
  72         #include "wx/msw/wrapwin.h" // For GetShort/LongPathName
  73     #endif
  74     #include "wx/dynarray.h"
  75     #include "wx/intl.h"
  76     #include "wx/log.h"
  77     #include "wx/utils.h"
  78     #include "wx/crt.h"
  79 #endif
  80
  81 #include "wx/filename.h"
  82 #include "wx/private/filename.h"
  83 #include "wx/tokenzr.h"
  84 #include "wx/config.h"          // for wxExpandEnvVars
  85 #include "wx/dynlib.h"
  86
  87 #if defined(__WIN32__) && defined(__MINGW32__)
  88     #include "wx/msw/gccpriv.h"
  89 #endif
  90
  91 #ifdef __WXWINCE__
  92 #include "wx/msw/private.h"
  93 #endif
  94
  95 #if defined(__WXMAC__)
  96   #include  "wx/mac/private.h"  // includes mac headers
  97 #endif
  98
  99 // utime() is POSIX so should normally be available on all Unices
 100 #ifdef __UNIX_LIKE__
 101 #include <sys/types.h>
 102 #include <utime.h>
 103 #include <sys/stat.h>
 104 #include <unistd.h>
 105 #endif
 106
 107 #ifdef __DJGPP__
 108 #include <unistd.h>
 109 #endif
 110
 111 #ifdef __MWERKS__
 112 #ifdef __MACH__
 113 #include <sys/types.h>
 114 #include <utime.h>
 115 #include <sys/stat.h>
 116 #include <unistd.h>
 117 #else
 118 #include <stat.h>
 119 #include <unistd.h>
 120 #include <unix.h>
 121 #endif
 122 #endif
 123
 124 #ifdef __WATCOMC__
 125 #include <io.h>
 126 #include <sys/utime.h>
 127 #include <sys/stat.h>
 128 #endif
 129
 130 #ifdef __VISAGECPP__
 131 #ifndef MAX_PATH
 132 #define MAX_PATH 256
 133 #endif
 134 #endif
 135
 136 #ifdef __EMX__
 137 #include <os2.h>
 138 #define MAX_PATH _MAX_PATH
 139 #endif
 140
 141
 142 wxULongLong wxInvalidSize = (unsigned)-1;
 143
 144
 145 // ----------------------------------------------------------------------------
 146 // private classes
 147 // ----------------------------------------------------------------------------
 148
 149 // small helper class which opens and closes the file - we use it just to get
 150 // a file handle for the given file name to pass it to some Win32 API function
 151 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 152
 153 class wxFileHandle
 154 {
 155 public:
 156     enum OpenMode
 157     {
 158         Read,
 159         Write
 160     };
 161
 162     wxFileHandle(const wxString& filename, OpenMode mode)
 163     {
 164         m_hFile = ::CreateFile
 165                     (
 166                      filename.fn_str(),             // name
 167                      mode == Read ? GENERIC_READ    // access mask
 168                                   : GENERIC_WRITE,
 169                      FILE_SHARE_READ |              // sharing mode
 170                      FILE_SHARE_WRITE,              // (allow everything)
 171                      NULL,                          // no secutity attr
 172                      OPEN_EXISTING,                 // creation disposition
 173                      0,                             // no flags
 174                      NULL                           // no template file
 175                     );
 176
 177         if ( m_hFile == INVALID_HANDLE_VALUE )
 178         {
 179             if ( mode == Read )
 180                 wxLogSysError(_("Failed to open '%s' for reading"),
 181                               filename.c_str());
 182             else
 183                 wxLogSysError(_("Failed to open '%s' for writing"),
 184                               filename.c_str());
 185         }
 186     }
 187
 188     ~wxFileHandle()
 189     {
 190         if ( m_hFile != INVALID_HANDLE_VALUE )
 191         {
 192             if ( !::CloseHandle(m_hFile) )
 193             {
 194                 wxLogSysError(_("Failed to close file handle"));
 195             }
 196         }
 197     }
 198
 199     // return true only if the file could be opened successfully
 200     bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
 201
 202     // get the handle
 203     operator HANDLE() const { return m_hFile; }
 204
 205 private:
 206     HANDLE m_hFile;
 207 };
 208
 209 #endif // __WIN32__
 210
 211 // ----------------------------------------------------------------------------
 212 // private functions
 213 // ----------------------------------------------------------------------------
 214
 215 #if wxUSE_DATETIME && defined(__WIN32__) && !defined(__WXMICROWIN__)
 216
 217 // convert between wxDateTime and FILETIME which is a 64-bit value representing
 218 // the number of 100-nanosecond intervals since January 1, 1601.
 219
 220 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 221 {
 222     FILETIME ftcopy = ft;
 223     FILETIME ftLocal;
 224     if ( !::FileTimeToLocalFileTime(&ftcopy, &ftLocal) )
 225     {
 226         wxLogLastError(_T("FileTimeToLocalFileTime"));
 227     }
 228
 229     SYSTEMTIME st;
 230     if ( !::FileTimeToSystemTime(&ftLocal, &st) )
 231     {
 232         wxLogLastError(_T("FileTimeToSystemTime"));
 233     }
 234
 235     dt->Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
 236             st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
 237 }
 238
 239 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 240 {
 241     SYSTEMTIME st;
 242     st.wDay = dt.GetDay();
 243     st.wMonth = (WORD)(dt.GetMonth() + 1);
 244     st.wYear = (WORD)dt.GetYear();
 245     st.wHour = dt.GetHour();
 246     st.wMinute = dt.GetMinute();
 247     st.wSecond = dt.GetSecond();
 248     st.wMilliseconds = dt.GetMillisecond();
 249
 250     FILETIME ftLocal;
 251     if ( !::SystemTimeToFileTime(&st, &ftLocal) )
 252     {
 253         wxLogLastError(_T("SystemTimeToFileTime"));
 254     }
 255
 256     if ( !::LocalFileTimeToFileTime(&ftLocal, ft) )
 257     {
 258         wxLogLastError(_T("LocalFileTimeToFileTime"));
 259     }
 260 }
 261
 262 #endif // wxUSE_DATETIME && __WIN32__
 263
 264 // return a string with the volume par
 265 static wxString wxGetVolumeString(const wxString& volume, wxPathFormat format)
 266 {
 267     wxString path;
 268
 269     if ( !volume.empty() )
 270     {
 271         format = wxFileName::GetFormat(format);
 272
 273         // Special Windows UNC paths hack, part 2: undo what we did in
 274         // SplitPath() and make an UNC path if we have a drive which is not a
 275         // single letter (hopefully the network shares can't be one letter only
 276         // although I didn't find any authoritative docs on this)
 277         if ( format == wxPATH_DOS && volume.length() > 1 )
 278         {
 279             path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
 280         }
 281         else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
 282         {
 283             path << volume << wxFileName::GetVolumeSeparator(format);
 284         }
 285         // else ignore
 286     }
 287
 288     return path;
 289 }
 290
 291 // return true if the format used is the DOS/Windows one and the string looks
 292 // like a UNC path
 293 static bool IsUNCPath(const wxString& path, wxPathFormat format)
 294 {
 295     return format == wxPATH_DOS &&
 296                 path.length() >= 4 && // "\\a" can't be a UNC path
 297                     path[0u] == wxFILE_SEP_PATH_DOS &&
 298                         path[1u] == wxFILE_SEP_PATH_DOS &&
 299                             path[2u] != wxFILE_SEP_PATH_DOS;
 300 }
 301
 302 // ============================================================================
 303 // implementation
 304 // ============================================================================
 305
 306 // ----------------------------------------------------------------------------
 307 // wxFileName construction
 308 // ----------------------------------------------------------------------------
 309
 310 void wxFileName::Assign( const wxFileName &filepath )
 311 {
 312     m_volume = filepath.GetVolume();
 313     m_dirs = filepath.GetDirs();
 314     m_name = filepath.GetName();
 315     m_ext = filepath.GetExt();
 316     m_relative = filepath.m_relative;
 317     m_hasExt = filepath.m_hasExt;
 318 }
 319
 320 void wxFileName::Assign(const wxString& volume,
 321                         const wxString& path,
 322                         const wxString& name,
 323                         const wxString& ext,
 324                         bool hasExt,
 325                         wxPathFormat format)
 326 {
 327     // we should ignore paths which look like UNC shares because we already
 328     // have the volume here and the UNC notation (\\server\path) is only valid
 329     // for paths which don't start with a volume, so prevent SetPath() from
 330     // recognizing "\\foo\bar" in "c:\\foo\bar" as an UNC path
 331     //
 332     // note also that this is a rather ugly way to do what we want (passing
 333     // some kind of flag telling to ignore UNC paths to SetPath() would be
 334     // better) but this is the safest thing to do to avoid breaking backwards
 335     // compatibility in 2.8
 336     if ( IsUNCPath(path, format) )
 337     {
 338         // remove one of the 2 leading backslashes to ensure that it's not
 339         // recognized as an UNC path by SetPath()
 340         wxString pathNonUNC(path, 1, wxString::npos);
 341         SetPath(pathNonUNC, format);
 342     }
 343     else // no UNC complications
 344     {
 345         SetPath(path, format);
 346     }
 347
 348     m_volume = volume;
 349     m_ext = ext;
 350     m_name = name;
 351
 352     m_hasExt = hasExt;
 353 }
 354
 355 void wxFileName::SetPath( const wxString& pathOrig, wxPathFormat format )
 356 {
 357     m_dirs.Clear();
 358
 359     if ( pathOrig.empty() )
 360     {
 361         // no path at all
 362         m_relative = true;
 363
 364         return;
 365     }
 366
 367     format = GetFormat( format );
 368
 369     // 0) deal with possible volume part first
 370     wxString volume,
 371              path;
 372     SplitVolume(pathOrig, &volume, &path, format);
 373     if ( !volume.empty() )
 374     {
 375         m_relative = false;
 376
 377         SetVolume(volume);
 378     }
 379
 380     // 1) Determine if the path is relative or absolute.
 381     wxChar leadingChar = path[0u];
 382
 383     switch (format)
 384     {
 385         case wxPATH_MAC:
 386             m_relative = leadingChar == wxT(':');
 387
 388             // We then remove a leading ":". The reason is in our
 389             // storage form for relative paths:
 390             // ":dir:file.txt" actually means "./dir/file.txt" in
 391             // DOS notation and should get stored as
 392             // (relative) (dir) (file.txt)
 393             // "::dir:file.txt" actually means "../dir/file.txt"
 394             // stored as (relative) (..) (dir) (file.txt)
 395             // This is important only for the Mac as an empty dir
 396             // actually means <UP>, whereas under DOS, double
 397             // slashes can be ignored: "\\\\" is the same as "\\".
 398             if (m_relative)
 399                 path.erase( 0, 1 );
 400             break;
 401
 402         case wxPATH_VMS:
 403             // TODO: what is the relative path format here?
 404             m_relative = false;
 405             break;
 406
 407         default:
 408             wxFAIL_MSG( _T("Unknown path format") );
 409             // !! Fall through !!
 410
 411         case wxPATH_UNIX:
 412             // the paths of the form "~" or "~username" are absolute
 413             m_relative = leadingChar != wxT('/') && leadingChar != _T('~');
 414             break;
 415
 416         case wxPATH_DOS:
 417             m_relative = !IsPathSeparator(leadingChar, format);
 418             break;
 419
 420     }
 421
 422     // 2) Break up the path into its members. If the original path
 423     //    was just "/" or "\\", m_dirs will be empty. We know from
 424     //    the m_relative field, if this means "nothing" or "root dir".
 425
 426     wxStringTokenizer tn( path, GetPathSeparators(format) );
 427
 428     while ( tn.HasMoreTokens() )
 429     {
 430         wxString token = tn.GetNextToken();
 431
 432         // Remove empty token under DOS and Unix, interpret them
 433         // as .. under Mac.
 434         if (token.empty())
 435         {
 436             if (format == wxPATH_MAC)
 437                 m_dirs.Add( wxT("..") );
 438             // else ignore
 439         }
 440         else
 441         {
 442            m_dirs.Add( token );
 443         }
 444     }
 445 }
 446
 447 void wxFileName::Assign(const wxString& fullpath,
 448                         wxPathFormat format)
 449 {
 450     wxString volume, path, name, ext;
 451     bool hasExt;
 452     SplitPath(fullpath, &volume, &path, &name, &ext, &hasExt, format);
 453
 454     Assign(volume, path, name, ext, hasExt, format);
 455 }
 456
 457 void wxFileName::Assign(const wxString& fullpathOrig,
 458                         const wxString& fullname,
 459                         wxPathFormat format)
 460 {
 461     // always recognize fullpath as directory, even if it doesn't end with a
 462     // slash
 463     wxString fullpath = fullpathOrig;
 464     if ( !fullpath.empty() && !wxEndsWithPathSeparator(fullpath) )
 465     {
 466         fullpath += GetPathSeparator(format);
 467     }
 468
 469     wxString volume, path, name, ext;
 470     bool hasExt;
 471
 472     // do some consistency checks in debug mode: the name should be really just
 473     // the filename and the path should be really just a path
 474 #ifdef __WXDEBUG__
 475     wxString volDummy, pathDummy, nameDummy, extDummy;
 476
 477     SplitPath(fullname, &volDummy, &pathDummy, &name, &ext, &hasExt, format);
 478
 479     wxASSERT_MSG( volDummy.empty() && pathDummy.empty(),
 480                   _T("the file name shouldn't contain the path") );
 481
 482     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 483
 484     wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
 485                   _T("the path shouldn't contain file name nor extension") );
 486
 487 #else // !__WXDEBUG__
 488     SplitPath(fullname, NULL /* no volume */, NULL /* no path */,
 489                         &name, &ext, &hasExt, format);
 490     SplitPath(fullpath, &volume, &path, NULL, NULL, format);
 491 #endif // __WXDEBUG__/!__WXDEBUG__
 492
 493     Assign(volume, path, name, ext, hasExt, format);
 494 }
 495
 496 void wxFileName::Assign(const wxString& pathOrig,
 497                         const wxString& name,
 498                         const wxString& ext,
 499                         wxPathFormat format)
 500 {
 501     wxString volume,
 502              path;
 503     SplitVolume(pathOrig, &volume, &path, format);
 504
 505     Assign(volume, path, name, ext, format);
 506 }
 507
 508 void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 509 {
 510     Assign(dir, wxEmptyString, format);
 511 }
 512
 513 void wxFileName::Clear()
 514 {
 515     m_dirs.Clear();
 516
 517     m_volume =
 518     m_name =
 519     m_ext = wxEmptyString;
 520
 521     // we don't have any absolute path for now
 522     m_relative = true;
 523
 524     // nor any extension
 525     m_hasExt = false;
 526 }
 527
 528 /* static */
 529 wxFileName wxFileName::FileName(const wxString& file, wxPathFormat format)
 530 {
 531     return wxFileName(file, format);
 532 }
 533
 534 /* static */
 535 wxFileName wxFileName::DirName(const wxString& dir, wxPathFormat format)
 536 {
 537     wxFileName fn;
 538     fn.AssignDir(dir, format);
 539     return fn;
 540 }
 541
 542 // ----------------------------------------------------------------------------
 543 // existence tests
 544 // ----------------------------------------------------------------------------
 545
 546 bool wxFileName::FileExists() const
 547 {
 548     return wxFileName::FileExists( GetFullPath() );
 549 }
 550
 551 bool wxFileName::FileExists( const wxString &file )
 552 {
 553     return ::wxFileExists( file );
 554 }
 555
 556 bool wxFileName::DirExists() const
 557 {
 558     return wxFileName::DirExists( GetPath() );
 559 }
 560
 561 bool wxFileName::DirExists( const wxString &dir )
 562 {
 563     return ::wxDirExists( dir );
 564 }
 565
 566 // ----------------------------------------------------------------------------
 567 // CWD and HOME stuff
 568 // ----------------------------------------------------------------------------
 569
 570 void wxFileName::AssignCwd(const wxString& volume)
 571 {
 572     AssignDir(wxFileName::GetCwd(volume));
 573 }
 574
 575 /* static */
 576 wxString wxFileName::GetCwd(const wxString& volume)
 577 {
 578     // if we have the volume, we must get the current directory on this drive
 579     // and to do this we have to chdir to this volume - at least under Windows,
 580     // I don't know how to get the current drive on another volume elsewhere
 581     // (TODO)
 582     wxString cwdOld;
 583     if ( !volume.empty() )
 584     {
 585         cwdOld = wxGetCwd();
 586         SetCwd(volume + GetVolumeSeparator());
 587     }
 588
 589     wxString cwd = ::wxGetCwd();
 590
 591     if ( !volume.empty() )
 592     {
 593         SetCwd(cwdOld);
 594     }
 595
 596     return cwd;
 597 }
 598
 599 bool wxFileName::SetCwd()
 600 {
 601     return wxFileName::SetCwd( GetPath() );
 602 }
 603
 604 bool wxFileName::SetCwd( const wxString &cwd )
 605 {
 606     return ::wxSetWorkingDirectory( cwd );
 607 }
 608
 609 void wxFileName::AssignHomeDir()
 610 {
 611     AssignDir(wxFileName::GetHomeDir());
 612 }
 613
 614 wxString wxFileName::GetHomeDir()
 615 {
 616     return ::wxGetHomeDir();
 617 }
 618
 619
 620 // ----------------------------------------------------------------------------
 621 // CreateTempFileName
 622 // ----------------------------------------------------------------------------
 623
 624 #if wxUSE_FILE || wxUSE_FFILE
 625
 626
 627 #if !defined wx_fdopen && defined HAVE_FDOPEN
 628     #define wx_fdopen fdopen
 629 #endif
 630
 631 // NB: GetTempFileName() under Windows creates the file, so using
 632 //     O_EXCL there would fail
 633 #ifdef __WINDOWS__
 634     #define wxOPEN_EXCL 0
 635 #else
 636     #define wxOPEN_EXCL O_EXCL
 637 #endif
 638
 639
 640 #ifdef wxOpenOSFHandle
 641 #define WX_HAVE_DELETE_ON_CLOSE
 642 // On Windows create a file with the FILE_FLAGS_DELETE_ON_CLOSE flags.
 643 //
 644 static int wxOpenWithDeleteOnClose(const wxString& filename)
 645 {
 646     DWORD access = GENERIC_READ | GENERIC_WRITE;
 647
 648     DWORD disposition = OPEN_ALWAYS;
 649
 650     DWORD attributes = FILE_ATTRIBUTE_TEMPORARY |
 651                        FILE_FLAG_DELETE_ON_CLOSE;
 652
 653     HANDLE h = ::CreateFile(filename.fn_str(), access, 0, NULL,
 654                             disposition, attributes, NULL);
 655
 656     return wxOpenOSFHandle(h, wxO_BINARY);
 657 }
 658 #endif // wxOpenOSFHandle
 659
 660
 661 // Helper to open the file
 662 //
 663 static int wxTempOpen(const wxString& path, bool *deleteOnClose)
 664 {
 665 #ifdef WX_HAVE_DELETE_ON_CLOSE
 666     if (*deleteOnClose)
 667         return wxOpenWithDeleteOnClose(path);
 668 #endif
 669
 670     *deleteOnClose = false;
 671
 672     return wxOpen(path, wxO_BINARY | O_RDWR | O_CREAT | wxOPEN_EXCL, 0600);
 673 }
 674
 675
 676 #if wxUSE_FFILE
 677 // Helper to open the file and attach it to the wxFFile
 678 //
 679 static bool wxTempOpen(wxFFile *file, const wxString& path, bool *deleteOnClose)
 680 {
 681 #ifndef wx_fdopen
 682     *deleteOnClose = false;
 683     return file->Open(path, _T("w+b"));
 684 #else // wx_fdopen
 685     int fd = wxTempOpen(path, deleteOnClose);
 686     if (fd == -1)
 687         return false;
 688     file->Attach(wx_fdopen(fd, "w+b"));
 689     return file->IsOpened();
 690 #endif // wx_fdopen
 691 }
 692 #endif // wxUSE_FFILE
 693
 694
 695 #if !wxUSE_FILE
 696     #define WXFILEARGS(x, y) y
 697 #elif !wxUSE_FFILE
 698     #define WXFILEARGS(x, y) x
 699 #else
 700     #define WXFILEARGS(x, y) x, y
 701 #endif
 702
 703
 704 // Implementation of wxFileName::CreateTempFileName().
 705 //
 706 static wxString wxCreateTempImpl(
 707         const wxString& prefix,
 708         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp),
 709         bool *deleteOnClose = NULL)
 710 {
 711 #if wxUSE_FILE && wxUSE_FFILE
 712     wxASSERT(fileTemp == NULL || ffileTemp == NULL);
 713 #endif
 714     wxString path, dir, name;
 715     bool wantDeleteOnClose = false;
 716
 717     if (deleteOnClose)
 718     {
 719         // set the result to false initially
 720         wantDeleteOnClose = *deleteOnClose;
 721         *deleteOnClose = false;
 722     }
 723     else
 724     {
 725         // easier if it alwasys points to something
 726         deleteOnClose = &wantDeleteOnClose;
 727     }
 728
 729     // use the directory specified by the prefix
 730     wxFileName::SplitPath(prefix, &dir, &name, NULL /* extension */);
 731
 732     if (dir.empty())
 733     {
 734         dir = wxFileName::GetTempDir();
 735     }
 736
 737 #if defined(__WXWINCE__)
 738     path = dir + wxT("\\") + name;
 739     int i = 1;
 740     while (wxFileName::FileExists(path))
 741     {
 742         path = dir + wxT("\\") + name ;
 743         path << i;
 744         i ++;
 745     }
 746
 747 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 748     if ( !::GetTempFileName(dir.fn_str(), name.fn_str(), 0,
 749                             wxStringBuffer(path, MAX_PATH + 1)) )
 750     {
 751         wxLogLastError(_T("GetTempFileName"));
 752
 753         path.clear();
 754     }
 755
 756 #else // !Windows
 757     path = dir;
 758
 759     if ( !wxEndsWithPathSeparator(dir) &&
 760             (name.empty() || !wxIsPathSeparator(name[0u])) )
 761     {
 762         path += wxFILE_SEP_PATH;
 763     }
 764
 765     path += name;
 766
 767 #if defined(HAVE_MKSTEMP)
 768     // scratch space for mkstemp()
 769     path += _T("XXXXXX");
 770
 771     // we need to copy the path to the buffer in which mkstemp() can modify it
 772     wxCharBuffer buf(path.fn_str());
 773
 774     // cast is safe because the string length doesn't change
 775     int fdTemp = mkstemp( (char*)(const char*) buf );
 776     if ( fdTemp == -1 )
 777     {
 778         // this might be not necessary as mkstemp() on most systems should have
 779         // already done it but it doesn't hurt neither...
 780         path.clear();
 781     }
 782     else // mkstemp() succeeded
 783     {
 784         path = wxConvFile.cMB2WX( (const char*) buf );
 785
 786     #if wxUSE_FILE
 787         // avoid leaking the fd
 788         if ( fileTemp )
 789         {
 790             fileTemp->Attach(fdTemp);
 791         }
 792         else
 793     #endif
 794
 795     #if wxUSE_FFILE
 796         if ( ffileTemp )
 797         {
 798         #ifdef wx_fdopen
 799             ffileTemp->Attach(wx_fdopen(fdTemp, "r+b"));
 800         #else
 801             ffileTemp->Open(path, _T("r+b"));
 802             close(fdTemp);
 803         #endif
 804         }
 805         else
 806     #endif
 807
 808         {
 809             close(fdTemp);
 810         }
 811     }
 812 #else // !HAVE_MKSTEMP
 813
 814 #ifdef HAVE_MKTEMP
 815     // same as above
 816     path += _T("XXXXXX");
 817
 818     wxCharBuffer buf = wxConvFile.cWX2MB( path );
 819     if ( !mktemp( (char*)(const char*) buf ) )
 820     {
 821         path.clear();
 822     }
 823     else
 824     {
 825         path = wxConvFile.cMB2WX( (const char*) buf );
 826     }
 827 #else // !HAVE_MKTEMP (includes __DOS__)
 828     // generate the unique file name ourselves
 829     #if !defined(__DOS__) && !defined(__PALMOS__) && (!defined(__MWERKS__) || defined(__DARWIN__) )
 830     path << (unsigned int)getpid();
 831     #endif
 832
 833     wxString pathTry;
 834
 835     static const size_t numTries = 1000;
 836     for ( size_t n = 0; n < numTries; n++ )
 837     {
 838         // 3 hex digits is enough for numTries == 1000 < 4096
 839         pathTry = path + wxString::Format(_T("%.03x"), (unsigned int) n);
 840         if ( !wxFileName::FileExists(pathTry) )
 841         {
 842             break;
 843         }
 844
 845         pathTry.clear();
 846     }
 847
 848     path = pathTry;
 849 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 850
 851 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 852
 853 #endif // Windows/!Windows
 854
 855     if ( path.empty() )
 856     {
 857         wxLogSysError(_("Failed to create a temporary file name"));
 858     }
 859     else
 860     {
 861         bool ok = true;
 862
 863         // open the file - of course, there is a race condition here, this is
 864         // why we always prefer using mkstemp()...
 865     #if wxUSE_FILE
 866         if ( fileTemp && !fileTemp->IsOpened() )
 867         {
 868             *deleteOnClose = wantDeleteOnClose;
 869             int fd = wxTempOpen(path, deleteOnClose);
 870             if (fd != -1)
 871                 fileTemp->Attach(fd);
 872             else
 873                 ok = false;
 874         }
 875     #endif
 876
 877     #if wxUSE_FFILE
 878         if ( ffileTemp && !ffileTemp->IsOpened() )
 879         {
 880             *deleteOnClose = wantDeleteOnClose;
 881             ok = wxTempOpen(ffileTemp, path, deleteOnClose);
 882         }
 883     #endif
 884
 885         if ( !ok )
 886         {
 887             // FIXME: If !ok here should we loop and try again with another
 888             //        file name?  That is the standard recourse if open(O_EXCL)
 889             //        fails, though of course it should be protected against
 890             //        possible infinite looping too.
 891
 892             wxLogError(_("Failed to open temporary file."));
 893
 894             path.clear();
 895         }
 896     }
 897
 898     return path;
 899 }
 900
 901
 902 static bool wxCreateTempImpl(
 903         const wxString& prefix,
 904         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp),
 905         wxString *name)
 906 {
 907     bool deleteOnClose = true;
 908
 909     *name = wxCreateTempImpl(prefix,
 910                              WXFILEARGS(fileTemp, ffileTemp),
 911                              &deleteOnClose);
 912
 913     bool ok = !name->empty();
 914
 915     if (deleteOnClose)
 916         name->clear();
 917 #ifdef __UNIX__
 918     else if (ok && wxRemoveFile(*name))
 919         name->clear();
 920 #endif
 921
 922     return ok;
 923 }
 924
 925
 926 static void wxAssignTempImpl(
 927         wxFileName *fn,
 928         const wxString& prefix,
 929         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp))
 930 {
 931     wxString tempname;
 932     tempname = wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, ffileTemp));
 933
 934     if ( tempname.empty() )
 935     {
 936         // error, failed to get temp file name
 937         fn->Clear();
 938     }
 939     else // ok
 940     {
 941         fn->Assign(tempname);
 942     }
 943 }
 944
 945
 946 void wxFileName::AssignTempFileName(const wxString& prefix)
 947 {
 948     wxAssignTempImpl(this, prefix, WXFILEARGS(NULL, NULL));
 949 }
 950
 951 /* static */
 952 wxString wxFileName::CreateTempFileName(const wxString& prefix)
 953 {
 954     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, NULL));
 955 }
 956
 957 #endif // wxUSE_FILE || wxUSE_FFILE
 958
 959
 960 #if wxUSE_FILE
 961
 962 wxString wxCreateTempFileName(const wxString& prefix,
 963                               wxFile *fileTemp,
 964                               bool *deleteOnClose)
 965 {
 966     return wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, NULL), deleteOnClose);
 967 }
 968
 969 bool wxCreateTempFile(const wxString& prefix,
 970                       wxFile *fileTemp,
 971                       wxString *name)
 972 {
 973     return wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, NULL), name);
 974 }
 975
 976 void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
 977 {
 978     wxAssignTempImpl(this, prefix, WXFILEARGS(fileTemp, NULL));
 979 }
 980
 981 /* static */
 982 wxString
 983 wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
 984 {
 985     return wxCreateTempFileName(prefix, fileTemp);
 986 }
 987
 988 #endif // wxUSE_FILE
 989
 990
 991 #if wxUSE_FFILE
 992
 993 wxString wxCreateTempFileName(const wxString& prefix,
 994                               wxFFile *fileTemp,
 995                               bool *deleteOnClose)
 996 {
 997     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, fileTemp), deleteOnClose);
 998 }
 999
1000 bool wxCreateTempFile(const wxString& prefix,
1001                       wxFFile *fileTemp,
1002                       wxString *name)
1003 {
1004     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, fileTemp), name);
1005
1006 }
1007
1008 void wxFileName::AssignTempFileName(const wxString& prefix, wxFFile *fileTemp)
1009 {
1010     wxAssignTempImpl(this, prefix, WXFILEARGS(NULL, fileTemp));
1011 }
1012
1013 /* static */
1014 wxString
1015 wxFileName::CreateTempFileName(const wxString& prefix, wxFFile *fileTemp)
1016 {
1017     return wxCreateTempFileName(prefix, fileTemp);
1018 }
1019
1020 #endif // wxUSE_FFILE
1021
1022
1023 // ----------------------------------------------------------------------------
1024 // directory operations
1025 // ----------------------------------------------------------------------------
1026
1027 wxString wxFileName::GetTempDir()
1028 {
1029     wxString dir;
1030     dir = wxGetenv(_T("TMPDIR"));
1031     if (dir.empty())
1032     {
1033         dir = wxGetenv(_T("TMP"));
1034         if (dir.empty())
1035         {
1036             dir = wxGetenv(_T("TEMP"));
1037         }
1038     }
1039
1040 #if defined(__WXWINCE__)
1041     if (dir.empty())
1042     {
1043         // FIXME. Create \temp dir?
1044         if (DirExists(wxT("\\temp")))
1045             dir = wxT("\\temp");
1046     }
1047 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1048
1049     if ( dir.empty() )
1050     {
1051         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
1052         {
1053             wxLogLastError(_T("GetTempPath"));
1054         }
1055
1056         if ( dir.empty() )
1057         {
1058             // GetTempFileName() fails if we pass it an empty string
1059             dir = _T('.');
1060         }
1061     }
1062 #else // !Windows
1063
1064     if ( dir.empty() )
1065     {
1066         // default
1067 #if defined(__DOS__) || defined(__OS2__)
1068         dir = _T(".");
1069 #elif defined(__WXMAC__)
1070         dir = wxMacFindFolder(short(kOnSystemDisk), kTemporaryFolderType, kCreateFolder);
1071 #else
1072         dir = _T("/tmp");
1073 #endif
1074     }
1075 #endif
1076
1077     return dir;
1078 }
1079
1080 bool wxFileName::Mkdir( int perm, int flags )
1081 {
1082     return wxFileName::Mkdir(GetPath(), perm, flags);
1083 }
1084
1085 bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
1086 {
1087     if ( flags & wxPATH_MKDIR_FULL )
1088     {
1089         // split the path in components
1090         wxFileName filename;
1091         filename.AssignDir(dir);
1092
1093         wxString currPath;
1094         if ( filename.HasVolume())
1095         {
1096             currPath << wxGetVolumeString(filename.GetVolume(), wxPATH_NATIVE);
1097         }
1098
1099         wxArrayString dirs = filename.GetDirs();
1100         size_t count = dirs.GetCount();
1101         for ( size_t i = 0; i < count; i++ )
1102         {
1103             if ( i > 0 ||
1104 #if defined(__WXMAC__) && !defined(__DARWIN__)
1105             // relative pathnames are exactely the other way round under mac...
1106                 !filename.IsAbsolute()
1107 #else
1108                 filename.IsAbsolute()
1109 #endif
1110             )
1111                 currPath += wxFILE_SEP_PATH;
1112             currPath += dirs[i];
1113
1114             if (!DirExists(currPath))
1115             {
1116                 if (!wxMkdir(currPath, perm))
1117                 {
1118                     // no need to try creating further directories
1119                     return false;
1120                 }
1121             }
1122         }
1123
1124         return true;
1125
1126     }
1127
1128     return ::wxMkdir( dir, perm );
1129 }
1130
1131 bool wxFileName::Rmdir()
1132 {
1133     return wxFileName::Rmdir( GetPath() );
1134 }
1135
1136 bool wxFileName::Rmdir( const wxString &dir )
1137 {
1138     return ::wxRmdir( dir );
1139 }
1140
1141 // ----------------------------------------------------------------------------
1142 // path normalization
1143 // ----------------------------------------------------------------------------
1144
1145 bool wxFileName::Normalize(int flags,
1146                            const wxString& cwd,
1147                            wxPathFormat format)
1148 {
1149     // deal with env vars renaming first as this may seriously change the path
1150     if ( flags & wxPATH_NORM_ENV_VARS )
1151     {
1152         wxString pathOrig = GetFullPath(format);
1153         wxString path = wxExpandEnvVars(pathOrig);
1154         if ( path != pathOrig )
1155         {
1156             Assign(path);
1157         }
1158     }
1159
1160
1161     // the existing path components
1162     wxArrayString dirs = GetDirs();
1163
1164     // the path to prepend in front to make the path absolute
1165     wxFileName curDir;
1166
1167     format = GetFormat(format);
1168
1169     // set up the directory to use for making the path absolute later
1170     if ( (flags & wxPATH_NORM_ABSOLUTE) && !IsAbsolute(format) )
1171     {
1172         if ( cwd.empty() )
1173         {
1174             curDir.AssignCwd(GetVolume());
1175         }
1176         else // cwd provided
1177         {
1178             curDir.AssignDir(cwd);
1179         }
1180     }
1181
1182     // handle ~ stuff under Unix only
1183     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
1184     {
1185         if ( !dirs.IsEmpty() )
1186         {
1187             wxString dir = dirs[0u];
1188             if ( !dir.empty() && dir[0u] == _T('~') )
1189             {
1190                 // to make the path absolute use the home directory
1191                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
1192
1193                 // if we are expanding the tilde, then this path
1194                 // *should* be already relative (since we checked for
1195                 // the tilde only in the first char of the first dir);
1196                 // if m_relative==false, it's because it was initialized
1197                 // from a string which started with /~; in that case
1198                 // we reach this point but then need m_relative=true
1199                 // for relative->absolute expansion later
1200                 m_relative = true;
1201
1202                 dirs.RemoveAt(0u);
1203             }
1204         }
1205     }
1206
1207     // transform relative path into abs one
1208     if ( curDir.IsOk() )
1209     {
1210         // this path may be relative because it doesn't have the volume name
1211         // and still have m_relative=true; in this case we shouldn't modify
1212         // our directory components but just set the current volume
1213         if ( !HasVolume() && curDir.HasVolume() )
1214         {
1215             SetVolume(curDir.GetVolume());
1216
1217             if ( !m_relative )
1218         {
1219                 // yes, it was the case - we don't need curDir then
1220                 curDir.Clear();
1221             }
1222         }
1223
1224         // finally, prepend curDir to the dirs array
1225         wxArrayString dirsNew = curDir.GetDirs();
1226         WX_PREPEND_ARRAY(dirs, dirsNew);
1227
1228         // if we used e.g. tilde expansion previously and wxGetUserHome didn't
1229         // return for some reason an absolute path, then curDir maybe not be absolute!
1230         if ( curDir.IsAbsolute(format) )
1231         {
1232             // we have prepended an absolute path and thus we are now an absolute
1233             // file name too
1234             m_relative = false;
1235         }
1236         // else if (flags & wxPATH_NORM_ABSOLUTE):
1237         //   should we warn the user that we didn't manage to make the path absolute?
1238     }
1239
1240     // now deal with ".", ".." and the rest
1241     m_dirs.Empty();
1242     size_t count = dirs.GetCount();
1243     for ( size_t n = 0; n < count; n++ )
1244     {
1245         wxString dir = dirs[n];
1246
1247         if ( flags & wxPATH_NORM_DOTS )
1248         {
1249             if ( dir == wxT(".") )
1250             {
1251                 // just ignore
1252                 continue;
1253             }
1254
1255             if ( dir == wxT("..") )
1256             {
1257                 if ( m_dirs.IsEmpty() )
1258                 {
1259                     wxLogError(_("The path '%s' contains too many \"..\"!"),
1260                                GetFullPath().c_str());
1261                     return false;
1262                 }
1263
1264                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
1265                 continue;
1266             }
1267         }
1268
1269         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
1270         {
1271             dir.MakeLower();
1272         }
1273
1274         m_dirs.Add(dir);
1275     }
1276
1277 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
1278     if ( (flags & wxPATH_NORM_SHORTCUT) )
1279     {
1280         wxString filename;
1281         if (GetShortcutTarget(GetFullPath(format), filename))
1282         {
1283             // Repeat this since we may now have a new path
1284             if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
1285             {
1286                 filename.MakeLower();
1287             }
1288             m_relative = false;
1289             Assign(filename);
1290         }
1291     }
1292 #endif
1293
1294     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
1295     {
1296         // VZ: expand env vars here too?
1297
1298         m_volume.MakeLower();
1299         m_name.MakeLower();
1300         m_ext.MakeLower();
1301     }
1302
1303 #if defined(__WIN32__)
1304     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
1305     {
1306         Assign(GetLongPath());
1307     }
1308 #endif // Win32
1309
1310     return true;
1311 }
1312
1313 // ----------------------------------------------------------------------------
1314 // get the shortcut target
1315 // ----------------------------------------------------------------------------
1316
1317 // WinCE (3) doesn't have CLSID_ShellLink, IID_IShellLink definitions.
1318 // The .lnk file is a plain text file so it should be easy to
1319 // make it work. Hint from Google Groups:
1320 // "If you open up a lnk file, you'll see a
1321 // number, followed by a pound sign (#), followed by more text. The
1322 // number is the number of characters that follows the pound sign. The
1323 // characters after the pound sign are the command line (which _can_
1324 // include arguments) to be executed. Any path (e.g. \windows\program
1325 // files\myapp.exe) that includes spaces needs to be enclosed in
1326 // quotation marks."
1327
1328 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
1329 // The following lines are necessary under WinCE
1330 // #include "wx/msw/private.h"
1331 // #include <ole2.h>
1332 #include <shlobj.h>
1333 #if defined(__WXWINCE__)
1334 #include <shlguid.h>
1335 #endif
1336
1337 bool wxFileName::GetShortcutTarget(const wxString& shortcutPath,
1338                                    wxString& targetFilename,
1339                                    wxString* arguments)
1340 {
1341     wxString path, file, ext;
1342     wxSplitPath(shortcutPath, & path, & file, & ext);
1343
1344     HRESULT hres;
1345     IShellLink* psl;
1346     bool success = false;
1347
1348     // Assume it's not a shortcut if it doesn't end with lnk
1349     if (ext.CmpNoCase(wxT("lnk"))!=0)
1350         return false;
1351
1352     // create a ShellLink object
1353     hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
1354                             IID_IShellLink, (LPVOID*) &psl);
1355
1356     if (SUCCEEDED(hres))
1357     {
1358         IPersistFile* ppf;
1359         hres = psl->QueryInterface( IID_IPersistFile, (LPVOID *) &ppf);
1360         if (SUCCEEDED(hres))
1361         {
1362             WCHAR wsz[MAX_PATH];
1363
1364             MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, shortcutPath.mb_str(), -1, wsz,
1365                                 MAX_PATH);
1366
1367             hres = ppf->Load(wsz, 0);
1368             ppf->Release();
1369
1370             if (SUCCEEDED(hres))
1371             {
1372                 wxChar buf[2048];
1373                 // Wrong prototype in early versions
1374 #if defined(__MINGW32__) && !wxCHECK_W32API_VERSION(2, 2)
1375                 psl->GetPath((CHAR*) buf, 2048, NULL, SLGP_UNCPRIORITY);
1376 #else
1377                 psl->GetPath(buf, 2048, NULL, SLGP_UNCPRIORITY);
1378 #endif
1379                 targetFilename = wxString(buf);
1380                 success = (shortcutPath != targetFilename);
1381
1382                 psl->GetArguments(buf, 2048);
1383                 wxString args(buf);
1384                 if (!args.empty() && arguments)
1385                 {
1386                     *arguments = args;
1387                 }
1388             }
1389         }
1390
1391         psl->Release();
1392     }
1393     return success;
1394 }
1395
1396 #endif // __WIN32__ && !__WXWINCE__
1397
1398
1399 // ----------------------------------------------------------------------------
1400 // absolute/relative paths
1401 // ----------------------------------------------------------------------------
1402
1403 bool wxFileName::IsAbsolute(wxPathFormat format) const
1404 {
1405     // if our path doesn't start with a path separator, it's not an absolute
1406     // path
1407     if ( m_relative )
1408         return false;
1409
1410     if ( !GetVolumeSeparator(format).empty() )
1411     {
1412         // this format has volumes and an absolute path must have one, it's not
1413         // enough to have the full path to bean absolute file under Windows
1414         if ( GetVolume().empty() )
1415             return false;
1416     }
1417
1418     return true;
1419 }
1420
1421 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
1422 {
1423     wxFileName fnBase = wxFileName::DirName(pathBase, format);
1424
1425     // get cwd only once - small time saving
1426     wxString cwd = wxGetCwd();
1427     Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1428     fnBase.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1429
1430     bool withCase = IsCaseSensitive(format);
1431
1432     // we can't do anything if the files live on different volumes
1433     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
1434     {
1435         // nothing done
1436         return false;
1437     }
1438
1439     // same drive, so we don't need our volume
1440     m_volume.clear();
1441
1442     // remove common directories starting at the top
1443     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
1444                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
1445     {
1446         m_dirs.RemoveAt(0);
1447         fnBase.m_dirs.RemoveAt(0);
1448     }
1449
1450     // add as many ".." as needed
1451     size_t count = fnBase.m_dirs.GetCount();
1452     for ( size_t i = 0; i < count; i++ )
1453     {
1454         m_dirs.Insert(wxT(".."), 0u);
1455     }
1456
1457     if ( format == wxPATH_UNIX || format == wxPATH_DOS )
1458     {
1459         // a directory made relative with respect to itself is '.' under Unix
1460         // and DOS, by definition (but we don't have to insert "./" for the
1461         // files)
1462         if ( m_dirs.IsEmpty() && IsDir() )
1463         {
1464             m_dirs.Add(_T('.'));
1465         }
1466     }
1467
1468     m_relative = true;
1469
1470     // we were modified
1471     return true;
1472 }
1473
1474 // ----------------------------------------------------------------------------
1475 // filename kind tests
1476 // ----------------------------------------------------------------------------
1477
1478 bool wxFileName::SameAs(const wxFileName& filepath, wxPathFormat format) const
1479 {
1480     wxFileName fn1 = *this,
1481                fn2 = filepath;
1482
1483     // get cwd only once - small time saving
1484     wxString cwd = wxGetCwd();
1485     fn1.Normalize(wxPATH_NORM_ALL | wxPATH_NORM_CASE, cwd, format);
1486     fn2.Normalize(wxPATH_NORM_ALL | wxPATH_NORM_CASE, cwd, format);
1487
1488     if ( fn1.GetFullPath() == fn2.GetFullPath() )
1489         return true;
1490
1491     // TODO: compare inodes for Unix, this works even when filenames are
1492     //       different but files are the same (symlinks) (VZ)
1493
1494     return false;
1495 }
1496
1497 /* static */
1498 bool wxFileName::IsCaseSensitive( wxPathFormat format )
1499 {
1500     // only Unix filenames are truely case-sensitive
1501     return GetFormat(format) == wxPATH_UNIX;
1502 }
1503
1504 /* static */
1505 wxString wxFileName::GetForbiddenChars(wxPathFormat format)
1506 {
1507     // Inits to forbidden characters that are common to (almost) all platforms.
1508     wxString strForbiddenChars = wxT("*?");
1509
1510     // If asserts, wxPathFormat has been changed. In case of a new path format
1511     // addition, the following code might have to be updated.
1512     wxCOMPILE_TIME_ASSERT(wxPATH_MAX == 5, wxPathFormatChanged);
1513     switch ( GetFormat(format) )
1514     {
1515         default :
1516             wxFAIL_MSG( wxT("Unknown path format") );
1517             // !! Fall through !!
1518
1519         case wxPATH_UNIX:
1520             break;
1521
1522         case wxPATH_MAC:
1523             // On a Mac even names with * and ? are allowed (Tested with OS
1524             // 9.2.1 and OS X 10.2.5)
1525             strForbiddenChars = wxEmptyString;
1526             break;
1527
1528         case wxPATH_DOS:
1529             strForbiddenChars += wxT("\\/:\"<>|");
1530             break;
1531
1532         case wxPATH_VMS:
1533             break;
1534     }
1535
1536     return strForbiddenChars;
1537 }
1538
1539 /* static */
1540 wxString wxFileName::GetVolumeSeparator(wxPathFormat WXUNUSED_IN_WINCE(format))
1541 {
1542 #ifdef __WXWINCE__
1543     return wxEmptyString;
1544 #else
1545     wxString sepVol;
1546
1547     if ( (GetFormat(format) == wxPATH_DOS) ||
1548          (GetFormat(format) == wxPATH_VMS) )
1549     {
1550         sepVol = wxFILE_SEP_DSK;
1551     }
1552     //else: leave empty
1553
1554     return sepVol;
1555 #endif
1556 }
1557
1558 /* static */
1559 wxString wxFileName::GetPathSeparators(wxPathFormat format)
1560 {
1561     wxString seps;
1562     switch ( GetFormat(format) )
1563     {
1564         case wxPATH_DOS:
1565             // accept both as native APIs do but put the native one first as
1566             // this is the one we use in GetFullPath()
1567             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
1568             break;
1569
1570         default:
1571             wxFAIL_MSG( _T("Unknown wxPATH_XXX style") );
1572             // fall through
1573
1574         case wxPATH_UNIX:
1575             seps = wxFILE_SEP_PATH_UNIX;
1576             break;
1577
1578         case wxPATH_MAC:
1579             seps = wxFILE_SEP_PATH_MAC;
1580             break;
1581
1582         case wxPATH_VMS:
1583             seps = wxFILE_SEP_PATH_VMS;
1584             break;
1585     }
1586
1587     return seps;
1588 }
1589
1590 /* static */
1591 wxString wxFileName::GetPathTerminators(wxPathFormat format)
1592 {
1593     format = GetFormat(format);
1594
1595     // under VMS the end of the path is ']', not the path separator used to
1596     // separate the components
1597     return format == wxPATH_VMS ? wxString(_T(']')) : GetPathSeparators(format);
1598 }
1599
1600 /* static */
1601 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
1602 {
1603     // wxString::Find() doesn't work as expected with NUL - it will always find
1604     // it, so test for it separately
1605     return ch != _T('\0') && GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
1606 }
1607
1608 // ----------------------------------------------------------------------------
1609 // path components manipulation
1610 // ----------------------------------------------------------------------------
1611
1612 /* static */ bool wxFileName::IsValidDirComponent(const wxString& dir)
1613 {
1614     if ( dir.empty() )
1615     {
1616         wxFAIL_MSG( _T("empty directory passed to wxFileName::InsertDir()") );
1617
1618         return false;
1619     }
1620
1621     const size_t len = dir.length();
1622     for ( size_t n = 0; n < len; n++ )
1623     {
1624         if ( dir[n] == GetVolumeSeparator() || IsPathSeparator(dir[n]) )
1625         {
1626             wxFAIL_MSG( _T("invalid directory component in wxFileName") );
1627
1628             return false;
1629         }
1630     }
1631
1632     return true;
1633 }
1634
1635 void wxFileName::AppendDir( const wxString& dir )
1636 {
1637     if ( IsValidDirComponent(dir) )
1638         m_dirs.Add( dir );
1639 }
1640
1641 void wxFileName::PrependDir( const wxString& dir )
1642 {
1643     InsertDir(0, dir);
1644 }
1645
1646 void wxFileName::InsertDir(size_t before, const wxString& dir)
1647 {
1648     if ( IsValidDirComponent(dir) )
1649         m_dirs.Insert(dir, before);
1650 }
1651
1652 void wxFileName::RemoveDir(size_t pos)
1653 {
1654     m_dirs.RemoveAt(pos);
1655 }
1656
1657 // ----------------------------------------------------------------------------
1658 // accessors
1659 // ----------------------------------------------------------------------------
1660
1661 void wxFileName::SetFullName(const wxString& fullname)
1662 {
1663     SplitPath(fullname, NULL /* no volume */, NULL /* no path */,
1664                         &m_name, &m_ext, &m_hasExt);
1665 }
1666
1667 wxString wxFileName::GetFullName() const
1668 {
1669     wxString fullname = m_name;
1670     if ( m_hasExt )
1671     {
1672         fullname << wxFILE_SEP_EXT << m_ext;
1673     }
1674
1675     return fullname;
1676 }
1677
1678 wxString wxFileName::GetPath( int flags, wxPathFormat format ) const
1679 {
1680     format = GetFormat( format );
1681
1682     wxString fullpath;
1683
1684     // return the volume with the path as well if requested
1685     if ( flags & wxPATH_GET_VOLUME )
1686     {
1687         fullpath += wxGetVolumeString(GetVolume(), format);
1688     }
1689
1690     // the leading character
1691     switch ( format )
1692     {
1693         case wxPATH_MAC:
1694             if ( m_relative )
1695                 fullpath += wxFILE_SEP_PATH_MAC;
1696             break;
1697
1698         case wxPATH_DOS:
1699             if ( !m_relative )
1700                 fullpath += wxFILE_SEP_PATH_DOS;
1701             break;
1702
1703         default:
1704             wxFAIL_MSG( wxT("Unknown path format") );
1705             // fall through
1706
1707         case wxPATH_UNIX:
1708             if ( !m_relative )
1709             {
1710                 // normally the absolute file names start with a slash
1711                 // with one exception: the ones like "~/foo.bar" don't
1712                 // have it
1713                 if ( m_dirs.IsEmpty() || m_dirs[0u] != _T('~') )
1714                 {
1715                     fullpath += wxFILE_SEP_PATH_UNIX;
1716                 }
1717             }
1718             break;
1719
1720         case wxPATH_VMS:
1721             // no leading character here but use this place to unset
1722             // wxPATH_GET_SEPARATOR flag: under VMS it doesn't make sense
1723             // as, if I understand correctly, there should never be a dot
1724             // before the closing bracket
1725             flags &= ~wxPATH_GET_SEPARATOR;
1726     }
1727
1728     if ( m_dirs.empty() )
1729     {
1730         // there is nothing more
1731         return fullpath;
1732     }
1733
1734     // then concatenate all the path components using the path separator
1735     if ( format == wxPATH_VMS )
1736     {
1737         fullpath += wxT('[');
1738     }
1739
1740     const size_t dirCount = m_dirs.GetCount();
1741     for ( size_t i = 0; i < dirCount; i++ )
1742     {
1743         switch (format)
1744         {
1745             case wxPATH_MAC:
1746                 if ( m_dirs[i] == wxT(".") )
1747                 {
1748                     // skip appending ':', this shouldn't be done in this
1749                     // case as "::" is interpreted as ".." under Unix
1750                     continue;
1751                 }
1752
1753                 // convert back from ".." to nothing
1754                 if ( !m_dirs[i].IsSameAs(wxT("..")) )
1755                      fullpath += m_dirs[i];
1756                 break;
1757
1758             default:
1759                 wxFAIL_MSG( wxT("Unexpected path format") );
1760                 // still fall through
1761
1762             case wxPATH_DOS:
1763             case wxPATH_UNIX:
1764                 fullpath += m_dirs[i];
1765                 break;
1766
1767             case wxPATH_VMS:
1768                 // TODO: What to do with ".." under VMS
1769
1770                 // convert back from ".." to nothing
1771                 if ( !m_dirs[i].IsSameAs(wxT("..")) )
1772                     fullpath += m_dirs[i];
1773                 break;
1774         }
1775
1776         if ( (flags & wxPATH_GET_SEPARATOR) || (i != dirCount - 1) )
1777             fullpath += GetPathSeparator(format);
1778     }
1779
1780     if ( format == wxPATH_VMS )
1781     {
1782         fullpath += wxT(']');
1783     }
1784
1785     return fullpath;
1786 }
1787
1788 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1789 {
1790     // we already have a function to get the path
1791     wxString fullpath = GetPath(wxPATH_GET_VOLUME | wxPATH_GET_SEPARATOR,
1792                                 format);
1793
1794     // now just add the file name and extension to it
1795     fullpath += GetFullName();
1796
1797     return fullpath;
1798 }
1799
1800 // Return the short form of the path (returns identity on non-Windows platforms)
1801 wxString wxFileName::GetShortPath() const
1802 {
1803     wxString path(GetFullPath());
1804
1805 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
1806     DWORD sz = ::GetShortPathName(path.fn_str(), NULL, 0);
1807     if ( sz != 0 )
1808     {
1809         wxString pathOut;
1810         if ( ::GetShortPathName
1811                (
1812                 path.fn_str(),
1813                 wxStringBuffer(pathOut, sz),
1814                 sz
1815                ) != 0 )
1816         {
1817             return pathOut;
1818         }
1819     }
1820 #endif // Windows
1821
1822     return path;
1823 }
1824
1825 // Return the long form of the path (returns identity on non-Windows platforms)
1826 wxString wxFileName::GetLongPath() const
1827 {
1828     wxString pathOut,
1829              path = GetFullPath();
1830
1831 #if defined(__WIN32__) && !defined(__WXWINCE__) && !defined(__WXMICROWIN__)
1832
1833 #if wxUSE_DYNAMIC_LOADER
1834     typedef DWORD (WINAPI *GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1835
1836     // this is MT-safe as in the worst case we're going to resolve the function
1837     // twice -- but as the result is the same in both threads, it's ok
1838     static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1839     if ( !s_pfnGetLongPathName )
1840     {
1841         static bool s_triedToLoad = false;
1842
1843         if ( !s_triedToLoad )
1844         {
1845             s_triedToLoad = true;
1846
1847             wxDynamicLibrary dllKernel(_T("kernel32"));
1848
1849             const wxChar* GetLongPathName = _T("GetLongPathName")
1850 #if wxUSE_UNICODE
1851                               _T("W");
1852 #else // ANSI
1853                               _T("A");
1854 #endif // Unicode/ANSI
1855
1856             if ( dllKernel.HasSymbol(GetLongPathName) )
1857             {
1858                 s_pfnGetLongPathName = (GET_LONG_PATH_NAME)
1859                     dllKernel.GetSymbol(GetLongPathName);
1860             }
1861
1862             // note that kernel32.dll can be unloaded, it stays in memory
1863             // anyhow as all Win32 programs link to it and so it's safe to call
1864             // GetLongPathName() even after unloading it
1865         }
1866     }
1867
1868     if ( s_pfnGetLongPathName )
1869     {
1870         DWORD dwSize = (*s_pfnGetLongPathName)(path.fn_str(), NULL, 0);
1871         if ( dwSize > 0 )
1872         {
1873             if ( (*s_pfnGetLongPathName)
1874                  (
1875                   path.fn_str(),
1876                   wxStringBuffer(pathOut, dwSize),
1877                   dwSize
1878                  ) != 0 )
1879             {
1880                 return pathOut;
1881             }
1882         }
1883     }
1884 #endif // wxUSE_DYNAMIC_LOADER
1885
1886     // The OS didn't support GetLongPathName, or some other error.
1887     // We need to call FindFirstFile on each component in turn.
1888
1889     WIN32_FIND_DATA findFileData;
1890     HANDLE hFind;
1891
1892     if ( HasVolume() )
1893         pathOut = GetVolume() +
1894                   GetVolumeSeparator(wxPATH_DOS) +
1895                   GetPathSeparator(wxPATH_DOS);
1896     else
1897         pathOut = wxEmptyString;
1898
1899     wxArrayString dirs = GetDirs();
1900     dirs.Add(GetFullName());
1901
1902     wxString tmpPath;
1903
1904     size_t count = dirs.GetCount();
1905     for ( size_t i = 0; i < count; i++ )
1906     {
1907         // We're using pathOut to collect the long-name path, but using a
1908         // temporary for appending the last path component which may be
1909         // short-name
1910         tmpPath = pathOut + dirs[i];
1911
1912         if ( tmpPath.empty() )
1913             continue;
1914
1915         // can't see this being necessary? MF
1916         if ( tmpPath.Last() == GetVolumeSeparator(wxPATH_DOS) )
1917         {
1918             // Can't pass a drive and root dir to FindFirstFile,
1919             // so continue to next dir
1920             tmpPath += wxFILE_SEP_PATH;
1921             pathOut = tmpPath;
1922             continue;
1923         }
1924
1925         hFind = ::FindFirstFile(tmpPath.fn_str(), &findFileData);
1926         if (hFind == INVALID_HANDLE_VALUE)
1927         {
1928             // Error: most likely reason is that path doesn't exist, so
1929             // append any unprocessed parts and return
1930             for ( i += 1; i < count; i++ )
1931                 tmpPath += wxFILE_SEP_PATH + dirs[i];
1932
1933             return tmpPath;
1934         }
1935
1936         pathOut += findFileData.cFileName;
1937         if ( (i < (count-1)) )
1938             pathOut += wxFILE_SEP_PATH;
1939
1940         ::FindClose(hFind);
1941     }
1942 #else // !Win32
1943     pathOut = path;
1944 #endif // Win32/!Win32
1945
1946     return pathOut;
1947 }
1948
1949 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1950 {
1951     if (format == wxPATH_NATIVE)
1952     {
1953 #if defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__)
1954         format = wxPATH_DOS;
1955 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1956         format = wxPATH_MAC;
1957 #elif defined(__VMS)
1958         format = wxPATH_VMS;
1959 #else
1960         format = wxPATH_UNIX;
1961 #endif
1962     }
1963     return format;
1964 }
1965
1966 // ----------------------------------------------------------------------------
1967 // path splitting function
1968 // ----------------------------------------------------------------------------
1969
1970 /* static */
1971 void
1972 wxFileName::SplitVolume(const wxString& fullpathWithVolume,
1973                         wxString *pstrVolume,
1974                         wxString *pstrPath,
1975                         wxPathFormat format)
1976 {
1977     format = GetFormat(format);
1978
1979     wxString fullpath = fullpathWithVolume;
1980
1981     // special Windows UNC paths hack: transform \\share\path into share:path
1982     if ( IsUNCPath(fullpath, format) )
1983     {
1984         fullpath.erase(0, 2);
1985
1986         size_t posFirstSlash =
1987             fullpath.find_first_of(GetPathTerminators(format));
1988         if ( posFirstSlash != wxString::npos )
1989         {
1990             fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1991
1992             // UNC paths are always absolute, right? (FIXME)
1993             fullpath.insert(posFirstSlash + 1, 1, wxFILE_SEP_PATH_DOS);
1994         }
1995     }
1996
1997     // We separate the volume here
1998     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1999     {
2000         wxString sepVol = GetVolumeSeparator(format);
2001
2002         size_t posFirstColon = fullpath.find_first_of(sepVol);
2003         if ( posFirstColon != wxString::npos )
2004         {
2005             if ( pstrVolume )
2006             {
2007                 *pstrVolume = fullpath.Left(posFirstColon);
2008             }
2009
2010             // remove the volume name and the separator from the full path
2011             fullpath.erase(0, posFirstColon + sepVol.length());
2012         }
2013     }
2014
2015     if ( pstrPath )
2016         *pstrPath = fullpath;
2017 }
2018
2019 /* static */
2020 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
2021                            wxString *pstrVolume,
2022                            wxString *pstrPath,
2023                            wxString *pstrName,
2024                            wxString *pstrExt,
2025                            bool *hasExt,
2026                            wxPathFormat format)
2027 {
2028     format = GetFormat(format);
2029
2030     wxString fullpath;
2031     SplitVolume(fullpathWithVolume, pstrVolume, &fullpath, format);
2032
2033     // find the positions of the last dot and last path separator in the path
2034     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
2035     size_t posLastSlash = fullpath.find_last_of(GetPathTerminators(format));
2036
2037     // check whether this dot occurs at the very beginning of a path component
2038     if ( (posLastDot != wxString::npos) &&
2039          (posLastDot == 0 ||
2040             IsPathSeparator(fullpath[posLastDot - 1]) ||
2041             (format == wxPATH_VMS && fullpath[posLastDot - 1] == _T(']'))) )
2042     {
2043         // dot may be (and commonly -- at least under Unix -- is) the first
2044         // character of the filename, don't treat the entire filename as
2045         // extension in this case
2046         posLastDot = wxString::npos;
2047     }
2048
2049     // if we do have a dot and a slash, check that the dot is in the name part
2050     if ( (posLastDot != wxString::npos) &&
2051          (posLastSlash != wxString::npos) &&
2052          (posLastDot < posLastSlash) )
2053     {
2054         // the dot is part of the path, not the start of the extension
2055         posLastDot = wxString::npos;
2056     }
2057
2058     // now fill in the variables provided by user
2059     if ( pstrPath )
2060     {
2061         if ( posLastSlash == wxString::npos )
2062         {
2063             // no path at all
2064             pstrPath->Empty();
2065         }
2066         else
2067         {
2068             // take everything up to the path separator but take care to make
2069             // the path equal to something like '/', not empty, for the files
2070             // immediately under root directory
2071             size_t len = posLastSlash;
2072
2073             // this rule does not apply to mac since we do not start with colons (sep)
2074             // except for relative paths
2075             if ( !len && format != wxPATH_MAC)
2076                 len++;
2077
2078             *pstrPath = fullpath.Left(len);
2079
2080             // special VMS hack: remove the initial bracket
2081             if ( format == wxPATH_VMS )
2082             {
2083                 if ( (*pstrPath)[0u] == _T('[') )
2084                     pstrPath->erase(0, 1);
2085             }
2086         }
2087     }
2088
2089     if ( pstrName )
2090     {
2091         // take all characters starting from the one after the last slash and
2092         // up to, but excluding, the last dot
2093         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
2094         size_t count;
2095         if ( posLastDot == wxString::npos )
2096         {
2097             // take all until the end
2098             count = wxString::npos;
2099         }
2100         else if ( posLastSlash == wxString::npos )
2101         {
2102             count = posLastDot;
2103         }
2104         else // have both dot and slash
2105         {
2106             count = posLastDot - posLastSlash - 1;
2107         }
2108
2109         *pstrName = fullpath.Mid(nStart, count);
2110     }
2111
2112     // finally deal with the extension here: we have an added complication that
2113     // extension may be empty (but present) as in "foo." where trailing dot
2114     // indicates the empty extension at the end -- and hence we must remember
2115     // that we have it independently of pstrExt
2116     if ( posLastDot == wxString::npos )
2117     {
2118         // no extension
2119         if ( pstrExt )
2120             pstrExt->clear();
2121         if ( hasExt )
2122             *hasExt = false;
2123     }
2124     else
2125     {
2126         // take everything after the dot
2127         if ( pstrExt )
2128             *pstrExt = fullpath.Mid(posLastDot + 1);
2129         if ( hasExt )
2130             *hasExt = true;
2131     }
2132 }
2133
2134 /* static */
2135 void wxFileName::SplitPath(const wxString& fullpath,
2136                            wxString *path,
2137                            wxString *name,
2138                            wxString *ext,
2139                            wxPathFormat format)
2140 {
2141     wxString volume;
2142     SplitPath(fullpath, &volume, path, name, ext, format);
2143
2144     if ( path )
2145     {
2146         path->Prepend(wxGetVolumeString(volume, format));
2147     }
2148 }
2149
2150 // ----------------------------------------------------------------------------
2151 // time functions
2152 // ----------------------------------------------------------------------------
2153
2154 #if wxUSE_DATETIME
2155
2156 bool wxFileName::SetTimes(const wxDateTime *dtAccess,
2157                           const wxDateTime *dtMod,
2158                           const wxDateTime *dtCreate)
2159 {
2160 #if defined(__WIN32__)
2161     if ( IsDir() )
2162     {
2163         // VZ: please let me know how to do this if you can
2164         wxFAIL_MSG( _T("SetTimes() not implemented for the directories") );
2165     }
2166     else // file
2167     {
2168         wxFileHandle fh(GetFullPath(), wxFileHandle::Write);
2169         if ( fh.IsOk() )
2170         {
2171             FILETIME ftAccess, ftCreate, ftWrite;
2172
2173             if ( dtCreate )
2174                 ConvertWxToFileTime(&ftCreate, *dtCreate);
2175             if ( dtAccess )
2176                 ConvertWxToFileTime(&ftAccess, *dtAccess);
2177             if ( dtMod )
2178                 ConvertWxToFileTime(&ftWrite, *dtMod);
2179
2180             if ( ::SetFileTime(fh,
2181                                dtCreate ? &ftCreate : NULL,
2182                                dtAccess ? &ftAccess : NULL,
2183                                dtMod ? &ftWrite : NULL) )
2184             {
2185                 return true;
2186             }
2187         }
2188     }
2189 #elif defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
2190     wxUnusedVar(dtCreate);
2191
2192     if ( !dtAccess && !dtMod )
2193     {
2194         // can't modify the creation time anyhow, don't try
2195         return true;
2196     }
2197
2198     // if dtAccess or dtMod is not specified, use the other one (which must be
2199     // non NULL because of the test above) for both times
2200     utimbuf utm;
2201     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
2202     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
2203     if ( utime(GetFullPath().fn_str(), &utm) == 0 )
2204     {
2205         return true;
2206     }
2207 #else // other platform
2208     wxUnusedVar(dtAccess);
2209     wxUnusedVar(dtMod);
2210     wxUnusedVar(dtCreate);
2211 #endif // platforms
2212
2213     wxLogSysError(_("Failed to modify file times for '%s'"),
2214                   GetFullPath().c_str());
2215
2216     return false;
2217 }
2218
2219 bool wxFileName::Touch()
2220 {
2221 #if defined(__UNIX_LIKE__)
2222     // under Unix touching file is simple: just pass NULL to utime()
2223     if ( utime(GetFullPath().fn_str(), NULL) == 0 )
2224     {
2225         return true;
2226     }
2227
2228     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
2229
2230     return false;
2231 #else // other platform
2232     wxDateTime dtNow = wxDateTime::Now();
2233
2234     return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
2235 #endif // platforms
2236 }
2237
2238 bool wxFileName::GetTimes(wxDateTime *dtAccess,
2239                           wxDateTime *dtMod,
2240                           wxDateTime *dtCreate) const
2241 {
2242 #if defined(__WIN32__)
2243     // we must use different methods for the files and directories under
2244     // Windows as CreateFile(GENERIC_READ) doesn't work for the directories and
2245     // CreateFile(FILE_FLAG_BACKUP_SEMANTICS) works -- but only under NT and
2246     // not 9x
2247     bool ok;
2248     FILETIME ftAccess, ftCreate, ftWrite;
2249     if ( IsDir() )
2250     {
2251         // implemented in msw/dir.cpp
2252         extern bool wxGetDirectoryTimes(const wxString& dirname,
2253                                         FILETIME *, FILETIME *, FILETIME *);
2254
2255         // we should pass the path without the trailing separator to
2256         // wxGetDirectoryTimes()
2257         ok = wxGetDirectoryTimes(GetPath(wxPATH_GET_VOLUME),
2258                                  &ftAccess, &ftCreate, &ftWrite);
2259     }
2260     else // file
2261     {
2262         wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
2263         if ( fh.IsOk() )
2264         {
2265             ok = ::GetFileTime(fh,
2266                                dtCreate ? &ftCreate : NULL,
2267                                dtAccess ? &ftAccess : NULL,
2268                                dtMod ? &ftWrite : NULL) != 0;
2269         }
2270         else
2271         {
2272             ok = false;
2273         }
2274     }
2275
2276     if ( ok )
2277     {
2278         if ( dtCreate )
2279             ConvertFileTimeToWx(dtCreate, ftCreate);
2280         if ( dtAccess )
2281             ConvertFileTimeToWx(dtAccess, ftAccess);
2282         if ( dtMod )
2283             ConvertFileTimeToWx(dtMod, ftWrite);
2284
2285         return true;
2286     }
2287 #elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || defined(__OS2__) || (defined(__DOS__) && defined(__WATCOMC__))
2288     // no need to test for IsDir() here
2289     wxStructStat stBuf;
2290     if ( wxStat( GetFullPath().c_str(), &stBuf) == 0 )
2291     {
2292         if ( dtAccess )
2293             dtAccess->Set(stBuf.st_atime);
2294         if ( dtMod )
2295             dtMod->Set(stBuf.st_mtime);
2296         if ( dtCreate )
2297             dtCreate->Set(stBuf.st_ctime);
2298
2299         return true;
2300     }
2301 #else // other platform
2302     wxUnusedVar(dtAccess);
2303     wxUnusedVar(dtMod);
2304     wxUnusedVar(dtCreate);
2305 #endif // platforms
2306
2307     wxLogSysError(_("Failed to retrieve file times for '%s'"),
2308                   GetFullPath().c_str());
2309
2310     return false;
2311 }
2312
2313 #endif // wxUSE_DATETIME
2314
2315
2316 // ----------------------------------------------------------------------------
2317 // file size functions
2318 // ----------------------------------------------------------------------------
2319
2320 /* static */
2321 wxULongLong wxFileName::GetSize(const wxString &filename)
2322 {
2323     if (!wxFileExists(filename))
2324         return wxInvalidSize;
2325
2326 #if defined(__WXPALMOS__)
2327     // TODO
2328     return wxInvalidSize;
2329 #elif defined(__WIN32__)
2330     wxFileHandle f(filename, wxFileHandle::Read);
2331     if (!f.IsOk())
2332         return wxInvalidSize;
2333
2334     DWORD lpFileSizeHigh;
2335     DWORD ret = GetFileSize(f, &lpFileSizeHigh);
2336     if ( ret == INVALID_FILE_SIZE && ::GetLastError() != NO_ERROR )
2337         return wxInvalidSize;
2338
2339     return wxULongLong(lpFileSizeHigh, ret);
2340 #else // ! __WIN32__
2341     wxStructStat st;
2342 #ifndef wxNEED_WX_UNISTD_H
2343     if (wxStat( filename.fn_str() , &st) != 0)
2344 #else
2345     if (wxStat( filename, &st) != 0)
2346 #endif
2347         return wxInvalidSize;
2348     return wxULongLong(st.st_size);
2349 #endif
2350 }
2351
2352 /* static */
2353 wxString wxFileName::GetHumanReadableSize(const wxULongLong &bs,
2354                                           const wxString &nullsize,
2355                                           int precision)
2356 {
2357     static const double KILOBYTESIZE = 1024.0;
2358     static const double MEGABYTESIZE = 1024.0*KILOBYTESIZE;
2359     static const double GIGABYTESIZE = 1024.0*MEGABYTESIZE;
2360     static const double TERABYTESIZE = 1024.0*GIGABYTESIZE;
2361
2362     if (bs == 0 || bs == wxInvalidSize)
2363         return nullsize;
2364
2365     double bytesize = bs.ToDouble();
2366     if (bytesize < KILOBYTESIZE)
2367         return wxString::Format(_("%s B"), bs.ToString().c_str());
2368     if (bytesize < MEGABYTESIZE)
2369         return wxString::Format(_("%.*f kB"), precision, bytesize/KILOBYTESIZE);
2370     if (bytesize < GIGABYTESIZE)
2371         return wxString::Format(_("%.*f MB"), precision, bytesize/MEGABYTESIZE);
2372     if (bytesize < TERABYTESIZE)
2373         return wxString::Format(_("%.*f GB"), precision, bytesize/GIGABYTESIZE);
2374
2375     return wxString::Format(_("%.*f TB"), precision, bytesize/TERABYTESIZE);
2376 }
2377
2378 wxULongLong wxFileName::GetSize() const
2379 {
2380     return GetSize(GetFullPath());
2381 }
2382
2383 wxString wxFileName::GetHumanReadableSize(const wxString &failmsg, int precision) const
2384 {
2385     return GetHumanReadableSize(GetSize(), failmsg, precision);
2386 }
2387
2388
2389 // ----------------------------------------------------------------------------
2390 // Mac-specific functions
2391 // ----------------------------------------------------------------------------
2392
2393 #ifdef __WXMAC__
2394
2395 const short kMacExtensionMaxLength = 16 ;
2396 class MacDefaultExtensionRecord
2397 {
2398 public :
2399   MacDefaultExtensionRecord()
2400   {
2401     m_ext[0] = 0 ;
2402     m_type = m_creator = 0 ;
2403   }
2404   MacDefaultExtensionRecord( const MacDefaultExtensionRecord& from )
2405   {
2406     wxStrcpy( m_ext , from.m_ext ) ;
2407     m_type = from.m_type ;
2408     m_creator = from.m_creator ;
2409   }
2410   MacDefaultExtensionRecord( const wxChar * extension , OSType type , OSType creator )
2411   {
2412     wxStrncpy( m_ext , extension , kMacExtensionMaxLength ) ;
2413     m_ext[kMacExtensionMaxLength] = 0 ;
2414     m_type = type ;
2415     m_creator = creator ;
2416   }
2417   wxChar m_ext[kMacExtensionMaxLength] ;
2418   OSType m_type ;
2419   OSType m_creator ;
2420 }  ;
2421
2422 WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray) ;
2423
2424 bool gMacDefaultExtensionsInited = false ;
2425
2426 #include "wx/arrimpl.cpp"
2427
2428 WX_DEFINE_EXPORTED_OBJARRAY(MacDefaultExtensionArray) ;
2429
2430 MacDefaultExtensionArray gMacDefaultExtensions ;
2431
2432 // load the default extensions
2433 MacDefaultExtensionRecord gDefaults[] =
2434 {
2435     MacDefaultExtensionRecord( wxT("txt") , 'TEXT' , 'ttxt' ) ,
2436     MacDefaultExtensionRecord( wxT("tif") , 'TIFF' , '****' ) ,
2437     MacDefaultExtensionRecord( wxT("jpg") , 'JPEG' , '****' ) ,
2438 } ;
2439
2440 static void MacEnsureDefaultExtensionsLoaded()
2441 {
2442     if ( !gMacDefaultExtensionsInited )
2443     {
2444         // we could load the pc exchange prefs here too
2445         for ( size_t i = 0 ; i < WXSIZEOF( gDefaults ) ; ++i )
2446         {
2447             gMacDefaultExtensions.Add( gDefaults[i] ) ;
2448         }
2449         gMacDefaultExtensionsInited = true ;
2450     }
2451 }
2452
2453 bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
2454 {
2455     FSRef fsRef ;
2456     FSCatalogInfo catInfo;
2457     FileInfo *finfo ;
2458
2459     if ( wxMacPathToFSRef( GetFullPath() , &fsRef ) == noErr )
2460     {
2461         if ( FSGetCatalogInfo (&fsRef, kFSCatInfoFinderInfo, &catInfo, NULL, NULL, NULL) == noErr )
2462         {
2463             finfo = (FileInfo*)&catInfo.finderInfo;
2464             finfo->fileType = type ;
2465             finfo->fileCreator = creator ;
2466             FSSetCatalogInfo( &fsRef, kFSCatInfoFinderInfo, &catInfo ) ;
2467             return true ;
2468         }
2469     }
2470     return false ;
2471 }
2472
2473 bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator )
2474 {
2475     FSRef fsRef ;
2476     FSCatalogInfo catInfo;
2477     FileInfo *finfo ;
2478
2479     if ( wxMacPathToFSRef( GetFullPath() , &fsRef ) == noErr )
2480     {
2481         if ( FSGetCatalogInfo (&fsRef, kFSCatInfoFinderInfo, &catInfo, NULL, NULL, NULL) == noErr )
2482         {
2483             finfo = (FileInfo*)&catInfo.finderInfo;
2484             *type = finfo->fileType ;
2485             *creator = finfo->fileCreator ;
2486             return true ;
2487         }
2488     }
2489     return false ;
2490 }
2491
2492 bool wxFileName::MacSetDefaultTypeAndCreator()
2493 {
2494     wxUint32 type , creator ;
2495     if ( wxFileName::MacFindDefaultTypeAndCreator(GetExt() , &type ,
2496       &creator ) )
2497     {
2498         return MacSetTypeAndCreator( type , creator ) ;
2499     }
2500     return false;
2501 }
2502
2503 bool wxFileName::MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator )
2504 {
2505   MacEnsureDefaultExtensionsLoaded() ;
2506   wxString extl = ext.Lower() ;
2507   for( int i = gMacDefaultExtensions.Count() - 1 ; i >= 0 ; --i )
2508   {
2509     if ( gMacDefaultExtensions.Item(i).m_ext == extl )
2510     {
2511       *type = gMacDefaultExtensions.Item(i).m_type ;
2512       *creator = gMacDefaultExtensions.Item(i).m_creator ;
2513       return true ;
2514     }
2515   }
2516   return false ;
2517 }
2518
2519 void wxFileName::MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator )
2520 {
2521   MacEnsureDefaultExtensionsLoaded() ;
2522   MacDefaultExtensionRecord rec ;
2523   rec.m_type = type ;
2524   rec.m_creator = creator ;
2525   wxStrncpy( rec.m_ext , ext.Lower().c_str() , kMacExtensionMaxLength ) ;
2526   gMacDefaultExtensions.Add( rec ) ;
2527 }
2528 #endif