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/osx/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__) && wxOSX_USE_CARBON
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         m_dirs.Add(dir);
1265     }
1266
1267 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
1268     if ( (flags & wxPATH_NORM_SHORTCUT) )
1269     {
1270         wxString filename;
1271         if (GetShortcutTarget(GetFullPath(format), filename))
1272         {
1273             m_relative = false;
1274             Assign(filename);
1275         }
1276     }
1277 #endif
1278
1279 #if defined(__WIN32__)
1280     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
1281     {
1282         Assign(GetLongPath());
1283     }
1284 #endif // Win32
1285
1286     // Change case  (this should be kept at the end of the function, to ensure
1287     // that the path doesn't change any more after we normalize its case)
1288     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
1289     {
1290         m_volume.MakeLower();
1291         m_name.MakeLower();
1292         m_ext.MakeLower();
1293
1294         // directory entries must be made lower case as well
1295         count = m_dirs.GetCount();
1296         for ( size_t i = 0; i < count; i++ )
1297         {
1298             m_dirs[i].MakeLower();
1299         }
1300     }
1301
1302     return true;
1303 }
1304
1305 // ----------------------------------------------------------------------------
1306 // get the shortcut target
1307 // ----------------------------------------------------------------------------
1308
1309 // WinCE (3) doesn't have CLSID_ShellLink, IID_IShellLink definitions.
1310 // The .lnk file is a plain text file so it should be easy to
1311 // make it work. Hint from Google Groups:
1312 // "If you open up a lnk file, you'll see a
1313 // number, followed by a pound sign (#), followed by more text. The
1314 // number is the number of characters that follows the pound sign. The
1315 // characters after the pound sign are the command line (which _can_
1316 // include arguments) to be executed. Any path (e.g. \windows\program
1317 // files\myapp.exe) that includes spaces needs to be enclosed in
1318 // quotation marks."
1319
1320 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
1321 // The following lines are necessary under WinCE
1322 // #include "wx/msw/private.h"
1323 // #include <ole2.h>
1324 #include <shlobj.h>
1325 #if defined(__WXWINCE__)
1326 #include <shlguid.h>
1327 #endif
1328
1329 bool wxFileName::GetShortcutTarget(const wxString& shortcutPath,
1330                                    wxString& targetFilename,
1331                                    wxString* arguments)
1332 {
1333     wxString path, file, ext;
1334     wxSplitPath(shortcutPath, & path, & file, & ext);
1335
1336     HRESULT hres;
1337     IShellLink* psl;
1338     bool success = false;
1339
1340     // Assume it's not a shortcut if it doesn't end with lnk
1341     if (ext.CmpNoCase(wxT("lnk"))!=0)
1342         return false;
1343
1344     // create a ShellLink object
1345     hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
1346                             IID_IShellLink, (LPVOID*) &psl);
1347
1348     if (SUCCEEDED(hres))
1349     {
1350         IPersistFile* ppf;
1351         hres = psl->QueryInterface( IID_IPersistFile, (LPVOID *) &ppf);
1352         if (SUCCEEDED(hres))
1353         {
1354             WCHAR wsz[MAX_PATH];
1355
1356             MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, shortcutPath.mb_str(), -1, wsz,
1357                                 MAX_PATH);
1358
1359             hres = ppf->Load(wsz, 0);
1360             ppf->Release();
1361
1362             if (SUCCEEDED(hres))
1363             {
1364                 wxChar buf[2048];
1365                 // Wrong prototype in early versions
1366 #if defined(__MINGW32__) && !wxCHECK_W32API_VERSION(2, 2)
1367                 psl->GetPath((CHAR*) buf, 2048, NULL, SLGP_UNCPRIORITY);
1368 #else
1369                 psl->GetPath(buf, 2048, NULL, SLGP_UNCPRIORITY);
1370 #endif
1371                 targetFilename = wxString(buf);
1372                 success = (shortcutPath != targetFilename);
1373
1374                 psl->GetArguments(buf, 2048);
1375                 wxString args(buf);
1376                 if (!args.empty() && arguments)
1377                 {
1378                     *arguments = args;
1379                 }
1380             }
1381         }
1382
1383         psl->Release();
1384     }
1385     return success;
1386 }
1387
1388 #endif // __WIN32__ && !__WXWINCE__
1389
1390
1391 // ----------------------------------------------------------------------------
1392 // absolute/relative paths
1393 // ----------------------------------------------------------------------------
1394
1395 bool wxFileName::IsAbsolute(wxPathFormat format) const
1396 {
1397     // if our path doesn't start with a path separator, it's not an absolute
1398     // path
1399     if ( m_relative )
1400         return false;
1401
1402     if ( !GetVolumeSeparator(format).empty() )
1403     {
1404         // this format has volumes and an absolute path must have one, it's not
1405         // enough to have the full path to bean absolute file under Windows
1406         if ( GetVolume().empty() )
1407             return false;
1408     }
1409
1410     return true;
1411 }
1412
1413 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
1414 {
1415     wxFileName fnBase = wxFileName::DirName(pathBase, format);
1416
1417     // get cwd only once - small time saving
1418     wxString cwd = wxGetCwd();
1419     Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1420     fnBase.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1421
1422     bool withCase = IsCaseSensitive(format);
1423
1424     // we can't do anything if the files live on different volumes
1425     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
1426     {
1427         // nothing done
1428         return false;
1429     }
1430
1431     // same drive, so we don't need our volume
1432     m_volume.clear();
1433
1434     // remove common directories starting at the top
1435     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
1436                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
1437     {
1438         m_dirs.RemoveAt(0);
1439         fnBase.m_dirs.RemoveAt(0);
1440     }
1441
1442     // add as many ".." as needed
1443     size_t count = fnBase.m_dirs.GetCount();
1444     for ( size_t i = 0; i < count; i++ )
1445     {
1446         m_dirs.Insert(wxT(".."), 0u);
1447     }
1448
1449     if ( format == wxPATH_UNIX || format == wxPATH_DOS )
1450     {
1451         // a directory made relative with respect to itself is '.' under Unix
1452         // and DOS, by definition (but we don't have to insert "./" for the
1453         // files)
1454         if ( m_dirs.IsEmpty() && IsDir() )
1455         {
1456             m_dirs.Add(_T('.'));
1457         }
1458     }
1459
1460     m_relative = true;
1461
1462     // we were modified
1463     return true;
1464 }
1465
1466 // ----------------------------------------------------------------------------
1467 // filename kind tests
1468 // ----------------------------------------------------------------------------
1469
1470 bool wxFileName::SameAs(const wxFileName& filepath, wxPathFormat format) const
1471 {
1472     wxFileName fn1 = *this,
1473                fn2 = filepath;
1474
1475     // get cwd only once - small time saving
1476     wxString cwd = wxGetCwd();
1477     fn1.Normalize(wxPATH_NORM_ALL | wxPATH_NORM_CASE, cwd, format);
1478     fn2.Normalize(wxPATH_NORM_ALL | wxPATH_NORM_CASE, cwd, format);
1479
1480     if ( fn1.GetFullPath() == fn2.GetFullPath() )
1481         return true;
1482
1483     // TODO: compare inodes for Unix, this works even when filenames are
1484     //       different but files are the same (symlinks) (VZ)
1485
1486     return false;
1487 }
1488
1489 /* static */
1490 bool wxFileName::IsCaseSensitive( wxPathFormat format )
1491 {
1492     // only Unix filenames are truely case-sensitive
1493     return GetFormat(format) == wxPATH_UNIX;
1494 }
1495
1496 /* static */
1497 wxString wxFileName::GetForbiddenChars(wxPathFormat format)
1498 {
1499     // Inits to forbidden characters that are common to (almost) all platforms.
1500     wxString strForbiddenChars = wxT("*?");
1501
1502     // If asserts, wxPathFormat has been changed. In case of a new path format
1503     // addition, the following code might have to be updated.
1504     wxCOMPILE_TIME_ASSERT(wxPATH_MAX == 5, wxPathFormatChanged);
1505     switch ( GetFormat(format) )
1506     {
1507         default :
1508             wxFAIL_MSG( wxT("Unknown path format") );
1509             // !! Fall through !!
1510
1511         case wxPATH_UNIX:
1512             break;
1513
1514         case wxPATH_MAC:
1515             // On a Mac even names with * and ? are allowed (Tested with OS
1516             // 9.2.1 and OS X 10.2.5)
1517             strForbiddenChars = wxEmptyString;
1518             break;
1519
1520         case wxPATH_DOS:
1521             strForbiddenChars += wxT("\\/:\"<>|");
1522             break;
1523
1524         case wxPATH_VMS:
1525             break;
1526     }
1527
1528     return strForbiddenChars;
1529 }
1530
1531 /* static */
1532 wxString wxFileName::GetVolumeSeparator(wxPathFormat WXUNUSED_IN_WINCE(format))
1533 {
1534 #ifdef __WXWINCE__
1535     return wxEmptyString;
1536 #else
1537     wxString sepVol;
1538
1539     if ( (GetFormat(format) == wxPATH_DOS) ||
1540          (GetFormat(format) == wxPATH_VMS) )
1541     {
1542         sepVol = wxFILE_SEP_DSK;
1543     }
1544     //else: leave empty
1545
1546     return sepVol;
1547 #endif
1548 }
1549
1550 /* static */
1551 wxString wxFileName::GetPathSeparators(wxPathFormat format)
1552 {
1553     wxString seps;
1554     switch ( GetFormat(format) )
1555     {
1556         case wxPATH_DOS:
1557             // accept both as native APIs do but put the native one first as
1558             // this is the one we use in GetFullPath()
1559             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
1560             break;
1561
1562         default:
1563             wxFAIL_MSG( _T("Unknown wxPATH_XXX style") );
1564             // fall through
1565
1566         case wxPATH_UNIX:
1567             seps = wxFILE_SEP_PATH_UNIX;
1568             break;
1569
1570         case wxPATH_MAC:
1571             seps = wxFILE_SEP_PATH_MAC;
1572             break;
1573
1574         case wxPATH_VMS:
1575             seps = wxFILE_SEP_PATH_VMS;
1576             break;
1577     }
1578
1579     return seps;
1580 }
1581
1582 /* static */
1583 wxString wxFileName::GetPathTerminators(wxPathFormat format)
1584 {
1585     format = GetFormat(format);
1586
1587     // under VMS the end of the path is ']', not the path separator used to
1588     // separate the components
1589     return format == wxPATH_VMS ? wxString(_T(']')) : GetPathSeparators(format);
1590 }
1591
1592 /* static */
1593 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
1594 {
1595     // wxString::Find() doesn't work as expected with NUL - it will always find
1596     // it, so test for it separately
1597     return ch != _T('\0') && GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
1598 }
1599
1600 // ----------------------------------------------------------------------------
1601 // path components manipulation
1602 // ----------------------------------------------------------------------------
1603
1604 /* static */ bool wxFileName::IsValidDirComponent(const wxString& dir)
1605 {
1606     if ( dir.empty() )
1607     {
1608         wxFAIL_MSG( _T("empty directory passed to wxFileName::InsertDir()") );
1609
1610         return false;
1611     }
1612
1613     const size_t len = dir.length();
1614     for ( size_t n = 0; n < len; n++ )
1615     {
1616         if ( dir[n] == GetVolumeSeparator() || IsPathSeparator(dir[n]) )
1617         {
1618             wxFAIL_MSG( _T("invalid directory component in wxFileName") );
1619
1620             return false;
1621         }
1622     }
1623
1624     return true;
1625 }
1626
1627 void wxFileName::AppendDir( const wxString& dir )
1628 {
1629     if ( IsValidDirComponent(dir) )
1630         m_dirs.Add( dir );
1631 }
1632
1633 void wxFileName::PrependDir( const wxString& dir )
1634 {
1635     InsertDir(0, dir);
1636 }
1637
1638 void wxFileName::InsertDir(size_t before, const wxString& dir)
1639 {
1640     if ( IsValidDirComponent(dir) )
1641         m_dirs.Insert(dir, before);
1642 }
1643
1644 void wxFileName::RemoveDir(size_t pos)
1645 {
1646     m_dirs.RemoveAt(pos);
1647 }
1648
1649 // ----------------------------------------------------------------------------
1650 // accessors
1651 // ----------------------------------------------------------------------------
1652
1653 void wxFileName::SetFullName(const wxString& fullname)
1654 {
1655     SplitPath(fullname, NULL /* no volume */, NULL /* no path */,
1656                         &m_name, &m_ext, &m_hasExt);
1657 }
1658
1659 wxString wxFileName::GetFullName() const
1660 {
1661     wxString fullname = m_name;
1662     if ( m_hasExt )
1663     {
1664         fullname << wxFILE_SEP_EXT << m_ext;
1665     }
1666
1667     return fullname;
1668 }
1669
1670 wxString wxFileName::GetPath( int flags, wxPathFormat format ) const
1671 {
1672     format = GetFormat( format );
1673
1674     wxString fullpath;
1675
1676     // return the volume with the path as well if requested
1677     if ( flags & wxPATH_GET_VOLUME )
1678     {
1679         fullpath += wxGetVolumeString(GetVolume(), format);
1680     }
1681
1682     // the leading character
1683     switch ( format )
1684     {
1685         case wxPATH_MAC:
1686             if ( m_relative )
1687                 fullpath += wxFILE_SEP_PATH_MAC;
1688             break;
1689
1690         case wxPATH_DOS:
1691             if ( !m_relative )
1692                 fullpath += wxFILE_SEP_PATH_DOS;
1693             break;
1694
1695         default:
1696             wxFAIL_MSG( wxT("Unknown path format") );
1697             // fall through
1698
1699         case wxPATH_UNIX:
1700             if ( !m_relative )
1701             {
1702                 // normally the absolute file names start with a slash
1703                 // with one exception: the ones like "~/foo.bar" don't
1704                 // have it
1705                 if ( m_dirs.IsEmpty() || m_dirs[0u] != _T('~') )
1706                 {
1707                     fullpath += wxFILE_SEP_PATH_UNIX;
1708                 }
1709             }
1710             break;
1711
1712         case wxPATH_VMS:
1713             // no leading character here but use this place to unset
1714             // wxPATH_GET_SEPARATOR flag: under VMS it doesn't make sense
1715             // as, if I understand correctly, there should never be a dot
1716             // before the closing bracket
1717             flags &= ~wxPATH_GET_SEPARATOR;
1718     }
1719
1720     if ( m_dirs.empty() )
1721     {
1722         // there is nothing more
1723         return fullpath;
1724     }
1725
1726     // then concatenate all the path components using the path separator
1727     if ( format == wxPATH_VMS )
1728     {
1729         fullpath += wxT('[');
1730     }
1731
1732     const size_t dirCount = m_dirs.GetCount();
1733     for ( size_t i = 0; i < dirCount; i++ )
1734     {
1735         switch (format)
1736         {
1737             case wxPATH_MAC:
1738                 if ( m_dirs[i] == wxT(".") )
1739                 {
1740                     // skip appending ':', this shouldn't be done in this
1741                     // case as "::" is interpreted as ".." under Unix
1742                     continue;
1743                 }
1744
1745                 // convert back from ".." to nothing
1746                 if ( !m_dirs[i].IsSameAs(wxT("..")) )
1747                      fullpath += m_dirs[i];
1748                 break;
1749
1750             default:
1751                 wxFAIL_MSG( wxT("Unexpected path format") );
1752                 // still fall through
1753
1754             case wxPATH_DOS:
1755             case wxPATH_UNIX:
1756                 fullpath += m_dirs[i];
1757                 break;
1758
1759             case wxPATH_VMS:
1760                 // TODO: What to do with ".." under VMS
1761
1762                 // convert back from ".." to nothing
1763                 if ( !m_dirs[i].IsSameAs(wxT("..")) )
1764                     fullpath += m_dirs[i];
1765                 break;
1766         }
1767
1768         if ( (flags & wxPATH_GET_SEPARATOR) || (i != dirCount - 1) )
1769             fullpath += GetPathSeparator(format);
1770     }
1771
1772     if ( format == wxPATH_VMS )
1773     {
1774         fullpath += wxT(']');
1775     }
1776
1777     return fullpath;
1778 }
1779
1780 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1781 {
1782     // we already have a function to get the path
1783     wxString fullpath = GetPath(wxPATH_GET_VOLUME | wxPATH_GET_SEPARATOR,
1784                                 format);
1785
1786     // now just add the file name and extension to it
1787     fullpath += GetFullName();
1788
1789     return fullpath;
1790 }
1791
1792 // Return the short form of the path (returns identity on non-Windows platforms)
1793 wxString wxFileName::GetShortPath() const
1794 {
1795     wxString path(GetFullPath());
1796
1797 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
1798     DWORD sz = ::GetShortPathName(path.fn_str(), NULL, 0);
1799     if ( sz != 0 )
1800     {
1801         wxString pathOut;
1802         if ( ::GetShortPathName
1803                (
1804                 path.fn_str(),
1805                 wxStringBuffer(pathOut, sz),
1806                 sz
1807                ) != 0 )
1808         {
1809             return pathOut;
1810         }
1811     }
1812 #endif // Windows
1813
1814     return path;
1815 }
1816
1817 // Return the long form of the path (returns identity on non-Windows platforms)
1818 wxString wxFileName::GetLongPath() const
1819 {
1820     wxString pathOut,
1821              path = GetFullPath();
1822
1823 #if defined(__WIN32__) && !defined(__WXWINCE__) && !defined(__WXMICROWIN__)
1824
1825 #if wxUSE_DYNLIB_CLASS
1826     typedef DWORD (WINAPI *GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1827
1828     // this is MT-safe as in the worst case we're going to resolve the function
1829     // twice -- but as the result is the same in both threads, it's ok
1830     static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1831     if ( !s_pfnGetLongPathName )
1832     {
1833         static bool s_triedToLoad = false;
1834
1835         if ( !s_triedToLoad )
1836         {
1837             s_triedToLoad = true;
1838
1839             wxDynamicLibrary dllKernel(_T("kernel32"));
1840
1841             const wxChar* GetLongPathName = _T("GetLongPathName")
1842 #if wxUSE_UNICODE
1843                               _T("W");
1844 #else // ANSI
1845                               _T("A");
1846 #endif // Unicode/ANSI
1847
1848             if ( dllKernel.HasSymbol(GetLongPathName) )
1849             {
1850                 s_pfnGetLongPathName = (GET_LONG_PATH_NAME)
1851                     dllKernel.GetSymbol(GetLongPathName);
1852             }
1853
1854             // note that kernel32.dll can be unloaded, it stays in memory
1855             // anyhow as all Win32 programs link to it and so it's safe to call
1856             // GetLongPathName() even after unloading it
1857         }
1858     }
1859
1860     if ( s_pfnGetLongPathName )
1861     {
1862         DWORD dwSize = (*s_pfnGetLongPathName)(path.fn_str(), NULL, 0);
1863         if ( dwSize > 0 )
1864         {
1865             if ( (*s_pfnGetLongPathName)
1866                  (
1867                   path.fn_str(),
1868                   wxStringBuffer(pathOut, dwSize),
1869                   dwSize
1870                  ) != 0 )
1871             {
1872                 return pathOut;
1873             }
1874         }
1875     }
1876 #endif // wxUSE_DYNLIB_CLASS
1877
1878     // The OS didn't support GetLongPathName, or some other error.
1879     // We need to call FindFirstFile on each component in turn.
1880
1881     WIN32_FIND_DATA findFileData;
1882     HANDLE hFind;
1883
1884     if ( HasVolume() )
1885         pathOut = GetVolume() +
1886                   GetVolumeSeparator(wxPATH_DOS) +
1887                   GetPathSeparator(wxPATH_DOS);
1888     else
1889         pathOut = wxEmptyString;
1890
1891     wxArrayString dirs = GetDirs();
1892     dirs.Add(GetFullName());
1893
1894     wxString tmpPath;
1895
1896     size_t count = dirs.GetCount();
1897     for ( size_t i = 0; i < count; i++ )
1898     {
1899         // We're using pathOut to collect the long-name path, but using a
1900         // temporary for appending the last path component which may be
1901         // short-name
1902         tmpPath = pathOut + dirs[i];
1903
1904         if ( tmpPath.empty() )
1905             continue;
1906
1907         // can't see this being necessary? MF
1908         if ( tmpPath.Last() == GetVolumeSeparator(wxPATH_DOS) )
1909         {
1910             // Can't pass a drive and root dir to FindFirstFile,
1911             // so continue to next dir
1912             tmpPath += wxFILE_SEP_PATH;
1913             pathOut = tmpPath;
1914             continue;
1915         }
1916
1917         hFind = ::FindFirstFile(tmpPath.fn_str(), &findFileData);
1918         if (hFind == INVALID_HANDLE_VALUE)
1919         {
1920             // Error: most likely reason is that path doesn't exist, so
1921             // append any unprocessed parts and return
1922             for ( i += 1; i < count; i++ )
1923                 tmpPath += wxFILE_SEP_PATH + dirs[i];
1924
1925             return tmpPath;
1926         }
1927
1928         pathOut += findFileData.cFileName;
1929         if ( (i < (count-1)) )
1930             pathOut += wxFILE_SEP_PATH;
1931
1932         ::FindClose(hFind);
1933     }
1934 #else // !Win32
1935     pathOut = path;
1936 #endif // Win32/!Win32
1937
1938     return pathOut;
1939 }
1940
1941 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1942 {
1943     if (format == wxPATH_NATIVE)
1944     {
1945 #if defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__)
1946         format = wxPATH_DOS;
1947 #elif defined(__VMS)
1948         format = wxPATH_VMS;
1949 #else
1950         format = wxPATH_UNIX;
1951 #endif
1952     }
1953     return format;
1954 }
1955
1956 // ----------------------------------------------------------------------------
1957 // path splitting function
1958 // ----------------------------------------------------------------------------
1959
1960 /* static */
1961 void
1962 wxFileName::SplitVolume(const wxString& fullpathWithVolume,
1963                         wxString *pstrVolume,
1964                         wxString *pstrPath,
1965                         wxPathFormat format)
1966 {
1967     format = GetFormat(format);
1968
1969     wxString fullpath = fullpathWithVolume;
1970
1971     // special Windows UNC paths hack: transform \\share\path into share:path
1972     if ( IsUNCPath(fullpath, format) )
1973     {
1974         fullpath.erase(0, 2);
1975
1976         size_t posFirstSlash =
1977             fullpath.find_first_of(GetPathTerminators(format));
1978         if ( posFirstSlash != wxString::npos )
1979         {
1980             fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1981
1982             // UNC paths are always absolute, right? (FIXME)
1983             fullpath.insert(posFirstSlash + 1, 1, wxFILE_SEP_PATH_DOS);
1984         }
1985     }
1986
1987     // We separate the volume here
1988     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1989     {
1990         wxString sepVol = GetVolumeSeparator(format);
1991
1992         size_t posFirstColon = fullpath.find_first_of(sepVol);
1993         if ( posFirstColon != wxString::npos )
1994         {
1995             if ( pstrVolume )
1996             {
1997                 *pstrVolume = fullpath.Left(posFirstColon);
1998             }
1999
2000             // remove the volume name and the separator from the full path
2001             fullpath.erase(0, posFirstColon + sepVol.length());
2002         }
2003     }
2004
2005     if ( pstrPath )
2006         *pstrPath = fullpath;
2007 }
2008
2009 /* static */
2010 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
2011                            wxString *pstrVolume,
2012                            wxString *pstrPath,
2013                            wxString *pstrName,
2014                            wxString *pstrExt,
2015                            bool *hasExt,
2016                            wxPathFormat format)
2017 {
2018     format = GetFormat(format);
2019
2020     wxString fullpath;
2021     SplitVolume(fullpathWithVolume, pstrVolume, &fullpath, format);
2022
2023     // find the positions of the last dot and last path separator in the path
2024     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
2025     size_t posLastSlash = fullpath.find_last_of(GetPathTerminators(format));
2026
2027     // check whether this dot occurs at the very beginning of a path component
2028     if ( (posLastDot != wxString::npos) &&
2029          (posLastDot == 0 ||
2030             IsPathSeparator(fullpath[posLastDot - 1]) ||
2031             (format == wxPATH_VMS && fullpath[posLastDot - 1] == _T(']'))) )
2032     {
2033         // dot may be (and commonly -- at least under Unix -- is) the first
2034         // character of the filename, don't treat the entire filename as
2035         // extension in this case
2036         posLastDot = wxString::npos;
2037     }
2038
2039     // if we do have a dot and a slash, check that the dot is in the name part
2040     if ( (posLastDot != wxString::npos) &&
2041          (posLastSlash != wxString::npos) &&
2042          (posLastDot < posLastSlash) )
2043     {
2044         // the dot is part of the path, not the start of the extension
2045         posLastDot = wxString::npos;
2046     }
2047
2048     // now fill in the variables provided by user
2049     if ( pstrPath )
2050     {
2051         if ( posLastSlash == wxString::npos )
2052         {
2053             // no path at all
2054             pstrPath->Empty();
2055         }
2056         else
2057         {
2058             // take everything up to the path separator but take care to make
2059             // the path equal to something like '/', not empty, for the files
2060             // immediately under root directory
2061             size_t len = posLastSlash;
2062
2063             // this rule does not apply to mac since we do not start with colons (sep)
2064             // except for relative paths
2065             if ( !len && format != wxPATH_MAC)
2066                 len++;
2067
2068             *pstrPath = fullpath.Left(len);
2069
2070             // special VMS hack: remove the initial bracket
2071             if ( format == wxPATH_VMS )
2072             {
2073                 if ( (*pstrPath)[0u] == _T('[') )
2074                     pstrPath->erase(0, 1);
2075             }
2076         }
2077     }
2078
2079     if ( pstrName )
2080     {
2081         // take all characters starting from the one after the last slash and
2082         // up to, but excluding, the last dot
2083         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
2084         size_t count;
2085         if ( posLastDot == wxString::npos )
2086         {
2087             // take all until the end
2088             count = wxString::npos;
2089         }
2090         else if ( posLastSlash == wxString::npos )
2091         {
2092             count = posLastDot;
2093         }
2094         else // have both dot and slash
2095         {
2096             count = posLastDot - posLastSlash - 1;
2097         }
2098
2099         *pstrName = fullpath.Mid(nStart, count);
2100     }
2101
2102     // finally deal with the extension here: we have an added complication that
2103     // extension may be empty (but present) as in "foo." where trailing dot
2104     // indicates the empty extension at the end -- and hence we must remember
2105     // that we have it independently of pstrExt
2106     if ( posLastDot == wxString::npos )
2107     {
2108         // no extension
2109         if ( pstrExt )
2110             pstrExt->clear();
2111         if ( hasExt )
2112             *hasExt = false;
2113     }
2114     else
2115     {
2116         // take everything after the dot
2117         if ( pstrExt )
2118             *pstrExt = fullpath.Mid(posLastDot + 1);
2119         if ( hasExt )
2120             *hasExt = true;
2121     }
2122 }
2123
2124 /* static */
2125 void wxFileName::SplitPath(const wxString& fullpath,
2126                            wxString *path,
2127                            wxString *name,
2128                            wxString *ext,
2129                            wxPathFormat format)
2130 {
2131     wxString volume;
2132     SplitPath(fullpath, &volume, path, name, ext, format);
2133
2134     if ( path )
2135     {
2136         path->Prepend(wxGetVolumeString(volume, format));
2137     }
2138 }
2139
2140 // ----------------------------------------------------------------------------
2141 // time functions
2142 // ----------------------------------------------------------------------------
2143
2144 #if wxUSE_DATETIME
2145
2146 bool wxFileName::SetTimes(const wxDateTime *dtAccess,
2147                           const wxDateTime *dtMod,
2148                           const wxDateTime *dtCreate)
2149 {
2150 #if defined(__WIN32__)
2151     if ( IsDir() )
2152     {
2153         // VZ: please let me know how to do this if you can
2154         wxFAIL_MSG( _T("SetTimes() not implemented for the directories") );
2155     }
2156     else // file
2157     {
2158         wxFileHandle fh(GetFullPath(), wxFileHandle::Write);
2159         if ( fh.IsOk() )
2160         {
2161             FILETIME ftAccess, ftCreate, ftWrite;
2162
2163             if ( dtCreate )
2164                 ConvertWxToFileTime(&ftCreate, *dtCreate);
2165             if ( dtAccess )
2166                 ConvertWxToFileTime(&ftAccess, *dtAccess);
2167             if ( dtMod )
2168                 ConvertWxToFileTime(&ftWrite, *dtMod);
2169
2170             if ( ::SetFileTime(fh,
2171                                dtCreate ? &ftCreate : NULL,
2172                                dtAccess ? &ftAccess : NULL,
2173                                dtMod ? &ftWrite : NULL) )
2174             {
2175                 return true;
2176             }
2177         }
2178     }
2179 #elif defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
2180     wxUnusedVar(dtCreate);
2181
2182     if ( !dtAccess && !dtMod )
2183     {
2184         // can't modify the creation time anyhow, don't try
2185         return true;
2186     }
2187
2188     // if dtAccess or dtMod is not specified, use the other one (which must be
2189     // non NULL because of the test above) for both times
2190     utimbuf utm;
2191     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
2192     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
2193     if ( utime(GetFullPath().fn_str(), &utm) == 0 )
2194     {
2195         return true;
2196     }
2197 #else // other platform
2198     wxUnusedVar(dtAccess);
2199     wxUnusedVar(dtMod);
2200     wxUnusedVar(dtCreate);
2201 #endif // platforms
2202
2203     wxLogSysError(_("Failed to modify file times for '%s'"),
2204                   GetFullPath().c_str());
2205
2206     return false;
2207 }
2208
2209 bool wxFileName::Touch()
2210 {
2211 #if defined(__UNIX_LIKE__)
2212     // under Unix touching file is simple: just pass NULL to utime()
2213     if ( utime(GetFullPath().fn_str(), NULL) == 0 )
2214     {
2215         return true;
2216     }
2217
2218     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
2219
2220     return false;
2221 #else // other platform
2222     wxDateTime dtNow = wxDateTime::Now();
2223
2224     return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
2225 #endif // platforms
2226 }
2227
2228 bool wxFileName::GetTimes(wxDateTime *dtAccess,
2229                           wxDateTime *dtMod,
2230                           wxDateTime *dtCreate) const
2231 {
2232 #if defined(__WIN32__)
2233     // we must use different methods for the files and directories under
2234     // Windows as CreateFile(GENERIC_READ) doesn't work for the directories and
2235     // CreateFile(FILE_FLAG_BACKUP_SEMANTICS) works -- but only under NT and
2236     // not 9x
2237     bool ok;
2238     FILETIME ftAccess, ftCreate, ftWrite;
2239     if ( IsDir() )
2240     {
2241         // implemented in msw/dir.cpp
2242         extern bool wxGetDirectoryTimes(const wxString& dirname,
2243                                         FILETIME *, FILETIME *, FILETIME *);
2244
2245         // we should pass the path without the trailing separator to
2246         // wxGetDirectoryTimes()
2247         ok = wxGetDirectoryTimes(GetPath(wxPATH_GET_VOLUME),
2248                                  &ftAccess, &ftCreate, &ftWrite);
2249     }
2250     else // file
2251     {
2252         wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
2253         if ( fh.IsOk() )
2254         {
2255             ok = ::GetFileTime(fh,
2256                                dtCreate ? &ftCreate : NULL,
2257                                dtAccess ? &ftAccess : NULL,
2258                                dtMod ? &ftWrite : NULL) != 0;
2259         }
2260         else
2261         {
2262             ok = false;
2263         }
2264     }
2265
2266     if ( ok )
2267     {
2268         if ( dtCreate )
2269             ConvertFileTimeToWx(dtCreate, ftCreate);
2270         if ( dtAccess )
2271             ConvertFileTimeToWx(dtAccess, ftAccess);
2272         if ( dtMod )
2273             ConvertFileTimeToWx(dtMod, ftWrite);
2274
2275         return true;
2276     }
2277 #elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || defined(__OS2__) || (defined(__DOS__) && defined(__WATCOMC__))
2278     // no need to test for IsDir() here
2279     wxStructStat stBuf;
2280     if ( wxStat( GetFullPath().c_str(), &stBuf) == 0 )
2281     {
2282         if ( dtAccess )
2283             dtAccess->Set(stBuf.st_atime);
2284         if ( dtMod )
2285             dtMod->Set(stBuf.st_mtime);
2286         if ( dtCreate )
2287             dtCreate->Set(stBuf.st_ctime);
2288
2289         return true;
2290     }
2291 #else // other platform
2292     wxUnusedVar(dtAccess);
2293     wxUnusedVar(dtMod);
2294     wxUnusedVar(dtCreate);
2295 #endif // platforms
2296
2297     wxLogSysError(_("Failed to retrieve file times for '%s'"),
2298                   GetFullPath().c_str());
2299
2300     return false;
2301 }
2302
2303 #endif // wxUSE_DATETIME
2304
2305
2306 // ----------------------------------------------------------------------------
2307 // file size functions
2308 // ----------------------------------------------------------------------------
2309
2310 #if wxUSE_LONGLONG
2311
2312 /* static */
2313 wxULongLong wxFileName::GetSize(const wxString &filename)
2314 {
2315     if (!wxFileExists(filename))
2316         return wxInvalidSize;
2317
2318 #if defined(__WXPALMOS__)
2319     // TODO
2320     return wxInvalidSize;
2321 #elif defined(__WIN32__)
2322     wxFileHandle f(filename, wxFileHandle::Read);
2323     if (!f.IsOk())
2324         return wxInvalidSize;
2325
2326     DWORD lpFileSizeHigh;
2327     DWORD ret = GetFileSize(f, &lpFileSizeHigh);
2328     if ( ret == INVALID_FILE_SIZE && ::GetLastError() != NO_ERROR )
2329         return wxInvalidSize;
2330
2331     return wxULongLong(lpFileSizeHigh, ret);
2332 #else // ! __WIN32__
2333     wxStructStat st;
2334 #ifndef wxNEED_WX_UNISTD_H
2335     if (wxStat( filename.fn_str() , &st) != 0)
2336 #else
2337     if (wxStat( filename, &st) != 0)
2338 #endif
2339         return wxInvalidSize;
2340     return wxULongLong(st.st_size);
2341 #endif
2342 }
2343
2344 /* static */
2345 wxString wxFileName::GetHumanReadableSize(const wxULongLong &bs,
2346                                           const wxString &nullsize,
2347                                           int precision)
2348 {
2349     static const double KILOBYTESIZE = 1024.0;
2350     static const double MEGABYTESIZE = 1024.0*KILOBYTESIZE;
2351     static const double GIGABYTESIZE = 1024.0*MEGABYTESIZE;
2352     static const double TERABYTESIZE = 1024.0*GIGABYTESIZE;
2353
2354     if (bs == 0 || bs == wxInvalidSize)
2355         return nullsize;
2356
2357     double bytesize = bs.ToDouble();
2358     if (bytesize < KILOBYTESIZE)
2359         return wxString::Format(_("%s B"), bs.ToString().c_str());
2360     if (bytesize < MEGABYTESIZE)
2361         return wxString::Format(_("%.*f kB"), precision, bytesize/KILOBYTESIZE);
2362     if (bytesize < GIGABYTESIZE)
2363         return wxString::Format(_("%.*f MB"), precision, bytesize/MEGABYTESIZE);
2364     if (bytesize < TERABYTESIZE)
2365         return wxString::Format(_("%.*f GB"), precision, bytesize/GIGABYTESIZE);
2366
2367     return wxString::Format(_("%.*f TB"), precision, bytesize/TERABYTESIZE);
2368 }
2369
2370 wxULongLong wxFileName::GetSize() const
2371 {
2372     return GetSize(GetFullPath());
2373 }
2374
2375 wxString wxFileName::GetHumanReadableSize(const wxString &failmsg, int precision) const
2376 {
2377     return GetHumanReadableSize(GetSize(), failmsg, precision);
2378 }
2379
2380 #endif // wxUSE_LONGLONG
2381
2382 // ----------------------------------------------------------------------------
2383 // Mac-specific functions
2384 // ----------------------------------------------------------------------------
2385
2386 #if defined( __WXOSX_MAC__ ) && wxOSX_USE_CARBON
2387
2388 const short kMacExtensionMaxLength = 16 ;
2389 class MacDefaultExtensionRecord
2390 {
2391 public :
2392   MacDefaultExtensionRecord()
2393   {
2394     m_ext[0] = 0 ;
2395     m_type = m_creator = 0 ;
2396   }
2397   MacDefaultExtensionRecord( const MacDefaultExtensionRecord& from )
2398   {
2399     wxStrcpy( m_ext , from.m_ext ) ;
2400     m_type = from.m_type ;
2401     m_creator = from.m_creator ;
2402   }
2403   MacDefaultExtensionRecord( const wxChar * extension , OSType type , OSType creator )
2404   {
2405     wxStrncpy( m_ext , extension , kMacExtensionMaxLength ) ;
2406     m_ext[kMacExtensionMaxLength] = 0 ;
2407     m_type = type ;
2408     m_creator = creator ;
2409   }
2410   wxChar m_ext[kMacExtensionMaxLength] ;
2411   OSType m_type ;
2412   OSType m_creator ;
2413 }  ;
2414
2415 WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray) ;
2416
2417 bool gMacDefaultExtensionsInited = false ;
2418
2419 #include "wx/arrimpl.cpp"
2420
2421 WX_DEFINE_EXPORTED_OBJARRAY(MacDefaultExtensionArray) ;
2422
2423 MacDefaultExtensionArray gMacDefaultExtensions ;
2424
2425 // load the default extensions
2426 MacDefaultExtensionRecord gDefaults[] =
2427 {
2428     MacDefaultExtensionRecord( wxT("txt") , 'TEXT' , 'ttxt' ) ,
2429     MacDefaultExtensionRecord( wxT("tif") , 'TIFF' , '****' ) ,
2430     MacDefaultExtensionRecord( wxT("jpg") , 'JPEG' , '****' ) ,
2431 } ;
2432
2433 static void MacEnsureDefaultExtensionsLoaded()
2434 {
2435     if ( !gMacDefaultExtensionsInited )
2436     {
2437         // we could load the pc exchange prefs here too
2438         for ( size_t i = 0 ; i < WXSIZEOF( gDefaults ) ; ++i )
2439         {
2440             gMacDefaultExtensions.Add( gDefaults[i] ) ;
2441         }
2442         gMacDefaultExtensionsInited = true ;
2443     }
2444 }
2445
2446 bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
2447 {
2448     FSRef fsRef ;
2449     FSCatalogInfo catInfo;
2450     FileInfo *finfo ;
2451
2452     if ( wxMacPathToFSRef( GetFullPath() , &fsRef ) == noErr )
2453     {
2454         if ( FSGetCatalogInfo (&fsRef, kFSCatInfoFinderInfo, &catInfo, NULL, NULL, NULL) == noErr )
2455         {
2456             finfo = (FileInfo*)&catInfo.finderInfo;
2457             finfo->fileType = type ;
2458             finfo->fileCreator = creator ;
2459             FSSetCatalogInfo( &fsRef, kFSCatInfoFinderInfo, &catInfo ) ;
2460             return true ;
2461         }
2462     }
2463     return false ;
2464 }
2465
2466 bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator )
2467 {
2468     FSRef fsRef ;
2469     FSCatalogInfo catInfo;
2470     FileInfo *finfo ;
2471
2472     if ( wxMacPathToFSRef( GetFullPath() , &fsRef ) == noErr )
2473     {
2474         if ( FSGetCatalogInfo (&fsRef, kFSCatInfoFinderInfo, &catInfo, NULL, NULL, NULL) == noErr )
2475         {
2476             finfo = (FileInfo*)&catInfo.finderInfo;
2477             *type = finfo->fileType ;
2478             *creator = finfo->fileCreator ;
2479             return true ;
2480         }
2481     }
2482     return false ;
2483 }
2484
2485 bool wxFileName::MacSetDefaultTypeAndCreator()
2486 {
2487     wxUint32 type , creator ;
2488     if ( wxFileName::MacFindDefaultTypeAndCreator(GetExt() , &type ,
2489       &creator ) )
2490     {
2491         return MacSetTypeAndCreator( type , creator ) ;
2492     }
2493     return false;
2494 }
2495
2496 bool wxFileName::MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator )
2497 {
2498   MacEnsureDefaultExtensionsLoaded() ;
2499   wxString extl = ext.Lower() ;
2500   for( int i = gMacDefaultExtensions.Count() - 1 ; i >= 0 ; --i )
2501   {
2502     if ( gMacDefaultExtensions.Item(i).m_ext == extl )
2503     {
2504       *type = gMacDefaultExtensions.Item(i).m_type ;
2505       *creator = gMacDefaultExtensions.Item(i).m_creator ;
2506       return true ;
2507     }
2508   }
2509   return false ;
2510 }
2511
2512 void wxFileName::MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator )
2513 {
2514   MacEnsureDefaultExtensionsLoaded() ;
2515   MacDefaultExtensionRecord rec ;
2516   rec.m_type = type ;
2517   rec.m_creator = creator ;
2518   wxStrncpy( rec.m_ext , ext.Lower().c_str() , kMacExtensionMaxLength ) ;
2519   gMacDefaultExtensions.Add( rec ) ;
2520 }
2521 #endif