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