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 #endif
  79
  80 #include "wx/filename.h"
  81 #include "wx/private/filename.h"
  82 #include "wx/tokenzr.h"
  83 #include "wx/config.h"          // for wxExpandEnvVars
  84 #include "wx/dynlib.h"
  85
  86 #if defined(__WIN32__) && defined(__MINGW32__)
  87     #include "wx/msw/gccpriv.h"
  88 #endif
  89
  90 #ifdef __WXWINCE__
  91 #include "wx/msw/private.h"
  92 #endif
  93
  94 #if defined(__WXMAC__)
  95   #include  "wx/mac/private.h"  // includes mac headers
  96 #endif
  97
  98 // utime() is POSIX so should normally be available on all Unices
  99 #ifdef __UNIX_LIKE__
 100 #include <sys/types.h>
 101 #include <utime.h>
 102 #include <sys/stat.h>
 103 #include <unistd.h>
 104 #endif
 105
 106 #ifdef __DJGPP__
 107 #include <unistd.h>
 108 #endif
 109
 110 #ifdef __MWERKS__
 111 #ifdef __MACH__
 112 #include <sys/types.h>
 113 #include <utime.h>
 114 #include <sys/stat.h>
 115 #include <unistd.h>
 116 #else
 117 #include <stat.h>
 118 #include <unistd.h>
 119 #include <unix.h>
 120 #endif
 121 #endif
 122
 123 #ifdef __WATCOMC__
 124 #include <io.h>
 125 #include <sys/utime.h>
 126 #include <sys/stat.h>
 127 #endif
 128
 129 #ifdef __VISAGECPP__
 130 #ifndef MAX_PATH
 131 #define MAX_PATH 256
 132 #endif
 133 #endif
 134
 135 #ifdef __EMX__
 136 #include <os2.h>
 137 #define MAX_PATH _MAX_PATH
 138 #endif
 139
 140
 141 wxULongLong wxInvalidSize = (unsigned)-1;
 142
 143
 144 // ----------------------------------------------------------------------------
 145 // private classes
 146 // ----------------------------------------------------------------------------
 147
 148 // small helper class which opens and closes the file - we use it just to get
 149 // a file handle for the given file name to pass it to some Win32 API function
 150 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 151
 152 class wxFileHandle
 153 {
 154 public:
 155     enum OpenMode
 156     {
 157         Read,
 158         Write
 159     };
 160
 161     wxFileHandle(const wxString& filename, OpenMode mode)
 162     {
 163         m_hFile = ::CreateFile
 164                     (
 165                      filename,                      // name
 166                      mode == Read ? GENERIC_READ    // access mask
 167                                   : GENERIC_WRITE,
 168                      FILE_SHARE_READ |              // sharing mode
 169                      FILE_SHARE_WRITE,              // (allow everything)
 170                      NULL,                          // no secutity attr
 171                      OPEN_EXISTING,                 // creation disposition
 172                      0,                             // no flags
 173                      NULL                           // no template file
 174                     );
 175
 176         if ( m_hFile == INVALID_HANDLE_VALUE )
 177         {
 178             wxLogSysError(_("Failed to open '%s' for %s"),
 179                           filename.c_str(),
 180                           mode == Read ? _("reading") : _("writing"));
 181         }
 182     }
 183
 184     ~wxFileHandle()
 185     {
 186         if ( m_hFile != INVALID_HANDLE_VALUE )
 187         {
 188             if ( !::CloseHandle(m_hFile) )
 189             {
 190                 wxLogSysError(_("Failed to close file handle"));
 191             }
 192         }
 193     }
 194
 195     // return true only if the file could be opened successfully
 196     bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
 197
 198     // get the handle
 199     operator HANDLE() const { return m_hFile; }
 200
 201 private:
 202     HANDLE m_hFile;
 203 };
 204
 205 #endif // __WIN32__
 206
 207 // ----------------------------------------------------------------------------
 208 // private functions
 209 // ----------------------------------------------------------------------------
 210
 211 #if wxUSE_DATETIME && defined(__WIN32__) && !defined(__WXMICROWIN__)
 212
 213 // convert between wxDateTime and FILETIME which is a 64-bit value representing
 214 // the number of 100-nanosecond intervals since January 1, 1601.
 215
 216 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 217 {
 218     FILETIME ftcopy = ft;
 219     FILETIME ftLocal;
 220     if ( !::FileTimeToLocalFileTime(&ftcopy, &ftLocal) )
 221     {
 222         wxLogLastError(_T("FileTimeToLocalFileTime"));
 223     }
 224
 225     SYSTEMTIME st;
 226     if ( !::FileTimeToSystemTime(&ftLocal, &st) )
 227     {
 228         wxLogLastError(_T("FileTimeToSystemTime"));
 229     }
 230
 231     dt->Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
 232             st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
 233 }
 234
 235 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 236 {
 237     SYSTEMTIME st;
 238     st.wDay = dt.GetDay();
 239     st.wMonth = (WORD)(dt.GetMonth() + 1);
 240     st.wYear = (WORD)dt.GetYear();
 241     st.wHour = dt.GetHour();
 242     st.wMinute = dt.GetMinute();
 243     st.wSecond = dt.GetSecond();
 244     st.wMilliseconds = dt.GetMillisecond();
 245
 246     FILETIME ftLocal;
 247     if ( !::SystemTimeToFileTime(&st, &ftLocal) )
 248     {
 249         wxLogLastError(_T("SystemTimeToFileTime"));
 250     }
 251
 252     if ( !::LocalFileTimeToFileTime(&ftLocal, ft) )
 253     {
 254         wxLogLastError(_T("LocalFileTimeToFileTime"));
 255     }
 256 }
 257
 258 #endif // wxUSE_DATETIME && __WIN32__
 259
 260 // return a string with the volume par
 261 static wxString wxGetVolumeString(const wxString& volume, wxPathFormat format)
 262 {
 263     wxString path;
 264
 265     if ( !volume.empty() )
 266     {
 267         format = wxFileName::GetFormat(format);
 268
 269         // Special Windows UNC paths hack, part 2: undo what we did in
 270         // SplitPath() and make an UNC path if we have a drive which is not a
 271         // single letter (hopefully the network shares can't be one letter only
 272         // although I didn't find any authoritative docs on this)
 273         if ( format == wxPATH_DOS && volume.length() > 1 )
 274         {
 275             path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
 276         }
 277         else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
 278         {
 279             path << volume << wxFileName::GetVolumeSeparator(format);
 280         }
 281         // else ignore
 282     }
 283
 284     return path;
 285 }
 286
 287 // return true if the format used is the DOS/Windows one and the string looks
 288 // like a UNC path
 289 static bool IsUNCPath(const wxString& path, wxPathFormat format)
 290 {
 291     return format == wxPATH_DOS &&
 292                 path.length() >= 4 && // "\\a" can't be a UNC path
 293                     path[0u] == wxFILE_SEP_PATH_DOS &&
 294                         path[1u] == wxFILE_SEP_PATH_DOS &&
 295                             path[2u] != wxFILE_SEP_PATH_DOS;
 296 }
 297
 298 // ============================================================================
 299 // implementation
 300 // ============================================================================
 301
 302 // ----------------------------------------------------------------------------
 303 // wxFileName construction
 304 // ----------------------------------------------------------------------------
 305
 306 void wxFileName::Assign( const wxFileName &filepath )
 307 {
 308     m_volume = filepath.GetVolume();
 309     m_dirs = filepath.GetDirs();
 310     m_name = filepath.GetName();
 311     m_ext = filepath.GetExt();
 312     m_relative = filepath.m_relative;
 313     m_hasExt = filepath.m_hasExt;
 314 }
 315
 316 void wxFileName::Assign(const wxString& volume,
 317                         const wxString& path,
 318                         const wxString& name,
 319                         const wxString& ext,
 320                         bool hasExt,
 321                         wxPathFormat format)
 322 {
 323     // we should ignore paths which look like UNC shares because we already
 324     // have the volume here and the UNC notation (\\server\path) is only valid
 325     // for paths which don't start with a volume, so prevent SetPath() from
 326     // recognizing "\\foo\bar" in "c:\\foo\bar" as an UNC path
 327     //
 328     // note also that this is a rather ugly way to do what we want (passing
 329     // some kind of flag telling to ignore UNC paths to SetPath() would be
 330     // better) but this is the safest thing to do to avoid breaking backwards
 331     // compatibility in 2.8
 332     if ( IsUNCPath(path, format) )
 333     {
 334         // remove one of the 2 leading backslashes to ensure that it's not
 335         // recognized as an UNC path by SetPath()
 336         wxString pathNonUNC(path, 1, wxString::npos);
 337         SetPath(pathNonUNC, format);
 338     }
 339     else // no UNC complications
 340     {
 341         SetPath(path, format);
 342     }
 343
 344     m_volume = volume;
 345     m_ext = ext;
 346     m_name = name;
 347
 348     m_hasExt = hasExt;
 349 }
 350
 351 void wxFileName::SetPath( const wxString& pathOrig, wxPathFormat format )
 352 {
 353     m_dirs.Clear();
 354
 355     if ( pathOrig.empty() )
 356     {
 357         // no path at all
 358         m_relative = true;
 359
 360         return;
 361     }
 362
 363     format = GetFormat( format );
 364
 365     // 0) deal with possible volume part first
 366     wxString volume,
 367              path;
 368     SplitVolume(pathOrig, &volume, &path, format);
 369     if ( !volume.empty() )
 370     {
 371         m_relative = false;
 372
 373         SetVolume(volume);
 374     }
 375
 376     // 1) Determine if the path is relative or absolute.
 377     wxChar leadingChar = path[0u];
 378
 379     switch (format)
 380     {
 381         case wxPATH_MAC:
 382             m_relative = leadingChar == wxT(':');
 383
 384             // We then remove a leading ":". The reason is in our
 385             // storage form for relative paths:
 386             // ":dir:file.txt" actually means "./dir/file.txt" in
 387             // DOS notation and should get stored as
 388             // (relative) (dir) (file.txt)
 389             // "::dir:file.txt" actually means "../dir/file.txt"
 390             // stored as (relative) (..) (dir) (file.txt)
 391             // This is important only for the Mac as an empty dir
 392             // actually means <UP>, whereas under DOS, double
 393             // slashes can be ignored: "\\\\" is the same as "\\".
 394             if (m_relative)
 395                 path.erase( 0, 1 );
 396             break;
 397
 398         case wxPATH_VMS:
 399             // TODO: what is the relative path format here?
 400             m_relative = false;
 401             break;
 402
 403         default:
 404             wxFAIL_MSG( _T("Unknown path format") );
 405             // !! Fall through !!
 406
 407         case wxPATH_UNIX:
 408             // the paths of the form "~" or "~username" are absolute
 409             m_relative = leadingChar != wxT('/') && leadingChar != _T('~');
 410             break;
 411
 412         case wxPATH_DOS:
 413             m_relative = !IsPathSeparator(leadingChar, format);
 414             break;
 415
 416     }
 417
 418     // 2) Break up the path into its members. If the original path
 419     //    was just "/" or "\\", m_dirs will be empty. We know from
 420     //    the m_relative field, if this means "nothing" or "root dir".
 421
 422     wxStringTokenizer tn( path, GetPathSeparators(format) );
 423
 424     while ( tn.HasMoreTokens() )
 425     {
 426         wxString token = tn.GetNextToken();
 427
 428         // Remove empty token under DOS and Unix, interpret them
 429         // as .. under Mac.
 430         if (token.empty())
 431         {
 432             if (format == wxPATH_MAC)
 433                 m_dirs.Add( wxT("..") );
 434             // else ignore
 435         }
 436         else
 437         {
 438            m_dirs.Add( token );
 439         }
 440     }
 441 }
 442
 443 void wxFileName::Assign(const wxString& fullpath,
 444                         wxPathFormat format)
 445 {
 446     wxString volume, path, name, ext;
 447     bool hasExt;
 448     SplitPath(fullpath, &volume, &path, &name, &ext, &hasExt, format);
 449
 450     Assign(volume, path, name, ext, hasExt, format);
 451 }
 452
 453 void wxFileName::Assign(const wxString& fullpathOrig,
 454                         const wxString& fullname,
 455                         wxPathFormat format)
 456 {
 457     // always recognize fullpath as directory, even if it doesn't end with a
 458     // slash
 459     wxString fullpath = fullpathOrig;
 460     if ( !fullpath.empty() && !wxEndsWithPathSeparator(fullpath) )
 461     {
 462         fullpath += GetPathSeparator(format);
 463     }
 464
 465     wxString volume, path, name, ext;
 466     bool hasExt;
 467
 468     // do some consistency checks in debug mode: the name should be really just
 469     // the filename and the path should be really just a path
 470 #ifdef __WXDEBUG__
 471     wxString volDummy, pathDummy, nameDummy, extDummy;
 472
 473     SplitPath(fullname, &volDummy, &pathDummy, &name, &ext, &hasExt, format);
 474
 475     wxASSERT_MSG( volDummy.empty() && pathDummy.empty(),
 476                   _T("the file name shouldn't contain the path") );
 477
 478     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 479
 480     wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
 481                   _T("the path shouldn't contain file name nor extension") );
 482
 483 #else // !__WXDEBUG__
 484     SplitPath(fullname, NULL /* no volume */, NULL /* no path */,
 485                         &name, &ext, &hasExt, format);
 486     SplitPath(fullpath, &volume, &path, NULL, NULL, format);
 487 #endif // __WXDEBUG__/!__WXDEBUG__
 488
 489     Assign(volume, path, name, ext, hasExt, format);
 490 }
 491
 492 void wxFileName::Assign(const wxString& pathOrig,
 493                         const wxString& name,
 494                         const wxString& ext,
 495                         wxPathFormat format)
 496 {
 497     wxString volume,
 498              path;
 499     SplitVolume(pathOrig, &volume, &path, format);
 500
 501     Assign(volume, path, name, ext, format);
 502 }
 503
 504 void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 505 {
 506     Assign(dir, wxEmptyString, format);
 507 }
 508
 509 void wxFileName::Clear()
 510 {
 511     m_dirs.Clear();
 512
 513     m_volume =
 514     m_name =
 515     m_ext = wxEmptyString;
 516
 517     // we don't have any absolute path for now
 518     m_relative = true;
 519
 520     // nor any extension
 521     m_hasExt = false;
 522 }
 523
 524 /* static */
 525 wxFileName wxFileName::FileName(const wxString& file, wxPathFormat format)
 526 {
 527     return wxFileName(file, format);
 528 }
 529
 530 /* static */
 531 wxFileName wxFileName::DirName(const wxString& dir, wxPathFormat format)
 532 {
 533     wxFileName fn;
 534     fn.AssignDir(dir, format);
 535     return fn;
 536 }
 537
 538 // ----------------------------------------------------------------------------
 539 // existence tests
 540 // ----------------------------------------------------------------------------
 541
 542 bool wxFileName::FileExists() const
 543 {
 544     return wxFileName::FileExists( GetFullPath() );
 545 }
 546
 547 bool wxFileName::FileExists( const wxString &file )
 548 {
 549     return ::wxFileExists( file );
 550 }
 551
 552 bool wxFileName::DirExists() const
 553 {
 554     return wxFileName::DirExists( GetPath() );
 555 }
 556
 557 bool wxFileName::DirExists( const wxString &dir )
 558 {
 559     return ::wxDirExists( dir );
 560 }
 561
 562 // ----------------------------------------------------------------------------
 563 // CWD and HOME stuff
 564 // ----------------------------------------------------------------------------
 565
 566 void wxFileName::AssignCwd(const wxString& volume)
 567 {
 568     AssignDir(wxFileName::GetCwd(volume));
 569 }
 570
 571 /* static */
 572 wxString wxFileName::GetCwd(const wxString& volume)
 573 {
 574     // if we have the volume, we must get the current directory on this drive
 575     // and to do this we have to chdir to this volume - at least under Windows,
 576     // I don't know how to get the current drive on another volume elsewhere
 577     // (TODO)
 578     wxString cwdOld;
 579     if ( !volume.empty() )
 580     {
 581         cwdOld = wxGetCwd();
 582         SetCwd(volume + GetVolumeSeparator());
 583     }
 584
 585     wxString cwd = ::wxGetCwd();
 586
 587     if ( !volume.empty() )
 588     {
 589         SetCwd(cwdOld);
 590     }
 591
 592     return cwd;
 593 }
 594
 595 bool wxFileName::SetCwd()
 596 {
 597     return wxFileName::SetCwd( GetPath() );
 598 }
 599
 600 bool wxFileName::SetCwd( const wxString &cwd )
 601 {
 602     return ::wxSetWorkingDirectory( cwd );
 603 }
 604
 605 void wxFileName::AssignHomeDir()
 606 {
 607     AssignDir(wxFileName::GetHomeDir());
 608 }
 609
 610 wxString wxFileName::GetHomeDir()
 611 {
 612     return ::wxGetHomeDir();
 613 }
 614
 615
 616 // ----------------------------------------------------------------------------
 617 // CreateTempFileName
 618 // ----------------------------------------------------------------------------
 619
 620 #if wxUSE_FILE || wxUSE_FFILE
 621
 622
 623 #if !defined wx_fdopen && defined HAVE_FDOPEN
 624     #define wx_fdopen fdopen
 625 #endif
 626
 627 // NB: GetTempFileName() under Windows creates the file, so using
 628 //     O_EXCL there would fail
 629 #ifdef __WINDOWS__
 630     #define wxOPEN_EXCL 0
 631 #else
 632     #define wxOPEN_EXCL O_EXCL
 633 #endif
 634
 635
 636 #ifdef wxOpenOSFHandle
 637 #define WX_HAVE_DELETE_ON_CLOSE
 638 // On Windows create a file with the FILE_FLAGS_DELETE_ON_CLOSE flags.
 639 //
 640 static int wxOpenWithDeleteOnClose(const wxString& filename)
 641 {
 642     DWORD access = GENERIC_READ | GENERIC_WRITE;
 643
 644     DWORD disposition = OPEN_ALWAYS;
 645
 646     DWORD attributes = FILE_ATTRIBUTE_TEMPORARY |
 647                        FILE_FLAG_DELETE_ON_CLOSE;
 648
 649     HANDLE h = ::CreateFile(filename, access, 0, NULL,
 650                             disposition, attributes, NULL);
 651
 652     return wxOpenOSFHandle(h, wxO_BINARY);
 653 }
 654 #endif // wxOpenOSFHandle
 655
 656
 657 // Helper to open the file
 658 //
 659 static int wxTempOpen(const wxString& path, bool *deleteOnClose)
 660 {
 661 #ifdef WX_HAVE_DELETE_ON_CLOSE
 662     if (*deleteOnClose)
 663         return wxOpenWithDeleteOnClose(path);
 664 #endif
 665
 666     *deleteOnClose = false;
 667
 668     return wxOpen(path, wxO_BINARY | O_RDWR | O_CREAT | wxOPEN_EXCL, 0600);
 669 }
 670
 671
 672 #if wxUSE_FFILE
 673 // Helper to open the file and attach it to the wxFFile
 674 //
 675 static bool wxTempOpen(wxFFile *file, const wxString& path, bool *deleteOnClose)
 676 {
 677 #ifndef wx_fdopen
 678     *deleteOnClose = false;
 679     return file->Open(path, _T("w+b"));
 680 #else // wx_fdopen
 681     int fd = wxTempOpen(path, deleteOnClose);
 682     if (fd == -1)
 683         return false;
 684     file->Attach(wx_fdopen(fd, "w+b"));
 685     return file->IsOpened();
 686 #endif // wx_fdopen
 687 }
 688 #endif // wxUSE_FFILE
 689
 690
 691 #if !wxUSE_FILE
 692     #define WXFILEARGS(x, y) y
 693 #elif !wxUSE_FFILE
 694     #define WXFILEARGS(x, y) x
 695 #else
 696     #define WXFILEARGS(x, y) x, y
 697 #endif
 698
 699
 700 // Implementation of wxFileName::CreateTempFileName().
 701 //
 702 static wxString wxCreateTempImpl(
 703         const wxString& prefix,
 704         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp),
 705         bool *deleteOnClose = NULL)
 706 {
 707 #if wxUSE_FILE && wxUSE_FFILE
 708     wxASSERT(fileTemp == NULL || ffileTemp == NULL);
 709 #endif
 710     wxString path, dir, name;
 711     bool wantDeleteOnClose = false;
 712
 713     if (deleteOnClose)
 714     {
 715         // set the result to false initially
 716         wantDeleteOnClose = *deleteOnClose;
 717         *deleteOnClose = false;
 718     }
 719     else
 720     {
 721         // easier if it alwasys points to something
 722         deleteOnClose = &wantDeleteOnClose;
 723     }
 724
 725     // use the directory specified by the prefix
 726     wxFileName::SplitPath(prefix, &dir, &name, NULL /* extension */);
 727
 728     if (dir.empty())
 729     {
 730         dir = wxFileName::GetTempDir();
 731     }
 732
 733 #if defined(__WXWINCE__)
 734     path = dir + wxT("\\") + name;
 735     int i = 1;
 736     while (wxFileName::FileExists(path))
 737     {
 738         path = dir + wxT("\\") + name ;
 739         path << i;
 740         i ++;
 741     }
 742
 743 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 744     if ( !::GetTempFileName(dir, name, 0, wxStringBuffer(path, MAX_PATH + 1)) )
 745     {
 746         wxLogLastError(_T("GetTempFileName"));
 747
 748         path.clear();
 749     }
 750
 751 #else // !Windows
 752     path = dir;
 753
 754     if ( !wxEndsWithPathSeparator(dir) &&
 755             (name.empty() || !wxIsPathSeparator(name[0u])) )
 756     {
 757         path += wxFILE_SEP_PATH;
 758     }
 759
 760     path += name;
 761
 762 #if defined(HAVE_MKSTEMP)
 763     // scratch space for mkstemp()
 764     path += _T("XXXXXX");
 765
 766     // we need to copy the path to the buffer in which mkstemp() can modify it
 767     wxCharBuffer buf( wxConvFile.cWX2MB( path ) );
 768
 769     // cast is safe because the string length doesn't change
 770     int fdTemp = mkstemp( (char*)(const char*) buf );
 771     if ( fdTemp == -1 )
 772     {
 773         // this might be not necessary as mkstemp() on most systems should have
 774         // already done it but it doesn't hurt neither...
 775         path.clear();
 776     }
 777     else // mkstemp() succeeded
 778     {
 779         path = wxConvFile.cMB2WX( (const char*) buf );
 780
 781     #if wxUSE_FILE
 782         // avoid leaking the fd
 783         if ( fileTemp )
 784         {
 785             fileTemp->Attach(fdTemp);
 786         }
 787         else
 788     #endif
 789
 790     #if wxUSE_FFILE
 791         if ( ffileTemp )
 792         {
 793         #ifdef wx_fdopen
 794             ffileTemp->Attach(wx_fdopen(fdTemp, "r+b"));
 795         #else
 796             ffileTemp->Open(path, _T("r+b"));
 797             close(fdTemp);
 798         #endif
 799         }
 800         else
 801     #endif
 802
 803         {
 804             close(fdTemp);
 805         }
 806     }
 807 #else // !HAVE_MKSTEMP
 808
 809 #ifdef HAVE_MKTEMP
 810     // same as above
 811     path += _T("XXXXXX");
 812
 813     wxCharBuffer buf = wxConvFile.cWX2MB( path );
 814     if ( !mktemp( (char*)(const char*) buf ) )
 815     {
 816         path.clear();
 817     }
 818     else
 819     {
 820         path = wxConvFile.cMB2WX( (const char*) buf );
 821     }
 822 #else // !HAVE_MKTEMP (includes __DOS__)
 823     // generate the unique file name ourselves
 824     #if !defined(__DOS__) && !defined(__PALMOS__) && (!defined(__MWERKS__) || defined(__DARWIN__) )
 825     path << (unsigned int)getpid();
 826     #endif
 827
 828     wxString pathTry;
 829
 830     static const size_t numTries = 1000;
 831     for ( size_t n = 0; n < numTries; n++ )
 832     {
 833         // 3 hex digits is enough for numTries == 1000 < 4096
 834         pathTry = path + wxString::Format(_T("%.03x"), (unsigned int) n);
 835         if ( !wxFileName::FileExists(pathTry) )
 836         {
 837             break;
 838         }
 839
 840         pathTry.clear();
 841     }
 842
 843     path = pathTry;
 844 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 845
 846 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 847
 848 #endif // Windows/!Windows
 849
 850     if ( path.empty() )
 851     {
 852         wxLogSysError(_("Failed to create a temporary file name"));
 853     }
 854     else
 855     {
 856         bool ok = true;
 857
 858         // open the file - of course, there is a race condition here, this is
 859         // why we always prefer using mkstemp()...
 860     #if wxUSE_FILE
 861         if ( fileTemp && !fileTemp->IsOpened() )
 862         {
 863             *deleteOnClose = wantDeleteOnClose;
 864             int fd = wxTempOpen(path, deleteOnClose);
 865             if (fd != -1)
 866                 fileTemp->Attach(fd);
 867             else
 868                 ok = false;
 869         }
 870     #endif
 871
 872     #if wxUSE_FFILE
 873         if ( ffileTemp && !ffileTemp->IsOpened() )
 874         {
 875             *deleteOnClose = wantDeleteOnClose;
 876             ok = wxTempOpen(ffileTemp, path, deleteOnClose);
 877         }
 878     #endif
 879
 880         if ( !ok )
 881         {
 882             // FIXME: If !ok here should we loop and try again with another
 883             //        file name?  That is the standard recourse if open(O_EXCL)
 884             //        fails, though of course it should be protected against
 885             //        possible infinite looping too.
 886
 887             wxLogError(_("Failed to open temporary file."));
 888
 889             path.clear();
 890         }
 891     }
 892
 893     return path;
 894 }
 895
 896
 897 static bool wxCreateTempImpl(
 898         const wxString& prefix,
 899         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp),
 900         wxString *name)
 901 {
 902     bool deleteOnClose = true;
 903
 904     *name = wxCreateTempImpl(prefix,
 905                              WXFILEARGS(fileTemp, ffileTemp),
 906                              &deleteOnClose);
 907
 908     bool ok = !name->empty();
 909
 910     if (deleteOnClose)
 911         name->clear();
 912 #ifdef __UNIX__
 913     else if (ok && wxRemoveFile(*name))
 914         name->clear();
 915 #endif
 916
 917     return ok;
 918 }
 919
 920
 921 static void wxAssignTempImpl(
 922         wxFileName *fn,
 923         const wxString& prefix,
 924         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp))
 925 {
 926     wxString tempname;
 927     tempname = wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, ffileTemp));
 928
 929     if ( tempname.empty() )
 930     {
 931         // error, failed to get temp file name
 932         fn->Clear();
 933     }
 934     else // ok
 935     {
 936         fn->Assign(tempname);
 937     }
 938 }
 939
 940
 941 void wxFileName::AssignTempFileName(const wxString& prefix)
 942 {
 943     wxAssignTempImpl(this, prefix, WXFILEARGS(NULL, NULL));
 944 }
 945
 946 /* static */
 947 wxString wxFileName::CreateTempFileName(const wxString& prefix)
 948 {
 949     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, NULL));
 950 }
 951
 952 #endif // wxUSE_FILE || wxUSE_FFILE
 953
 954
 955 #if wxUSE_FILE
 956
 957 wxString wxCreateTempFileName(const wxString& prefix,
 958                               wxFile *fileTemp,
 959                               bool *deleteOnClose)
 960 {
 961     return wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, NULL), deleteOnClose);
 962 }
 963
 964 bool wxCreateTempFile(const wxString& prefix,
 965                       wxFile *fileTemp,
 966                       wxString *name)
 967 {
 968     return wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, NULL), name);
 969 }
 970
 971 void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
 972 {
 973     wxAssignTempImpl(this, prefix, WXFILEARGS(fileTemp, NULL));
 974 }
 975
 976 /* static */
 977 wxString
 978 wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
 979 {
 980     return wxCreateTempFileName(prefix, fileTemp);
 981 }
 982
 983 #endif // wxUSE_FILE
 984
 985
 986 #if wxUSE_FFILE
 987
 988 wxString wxCreateTempFileName(const wxString& prefix,
 989                               wxFFile *fileTemp,
 990                               bool *deleteOnClose)
 991 {
 992     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, fileTemp), deleteOnClose);
 993 }
 994
 995 bool wxCreateTempFile(const wxString& prefix,
 996                       wxFFile *fileTemp,
 997                       wxString *name)
 998 {
 999     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, fileTemp), name);
1000
1001 }
1002
1003 void wxFileName::AssignTempFileName(const wxString& prefix, wxFFile *fileTemp)
1004 {
1005     wxAssignTempImpl(this, prefix, WXFILEARGS(NULL, fileTemp));
1006 }
1007
1008 /* static */
1009 wxString
1010 wxFileName::CreateTempFileName(const wxString& prefix, wxFFile *fileTemp)
1011 {
1012     return wxCreateTempFileName(prefix, fileTemp);
1013 }
1014
1015 #endif // wxUSE_FFILE
1016
1017
1018 // ----------------------------------------------------------------------------
1019 // directory operations
1020 // ----------------------------------------------------------------------------
1021
1022 wxString wxFileName::GetTempDir()
1023 {
1024     wxString dir;
1025     dir = wxGetenv(_T("TMPDIR"));
1026     if (dir.empty())
1027     {
1028         dir = wxGetenv(_T("TMP"));
1029         if (dir.empty())
1030         {
1031             dir = wxGetenv(_T("TEMP"));
1032         }
1033     }
1034
1035 #if defined(__WXWINCE__)
1036     if (dir.empty())
1037     {
1038         // FIXME. Create \temp dir?
1039         if (DirExists(wxT("\\temp")))
1040             dir = wxT("\\temp");
1041     }
1042 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1043
1044     if ( dir.empty() )
1045     {
1046         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
1047         {
1048             wxLogLastError(_T("GetTempPath"));
1049         }
1050
1051         if ( dir.empty() )
1052         {
1053             // GetTempFileName() fails if we pass it an empty string
1054             dir = _T('.');
1055         }
1056     }
1057 #else // !Windows
1058
1059     if ( dir.empty() )
1060     {
1061         // default
1062 #if defined(__DOS__) || defined(__OS2__)
1063         dir = _T(".");
1064 #elif defined(__WXMAC__)
1065         dir = wxMacFindFolder(short(kOnSystemDisk), kTemporaryFolderType, kCreateFolder);
1066 #else
1067         dir = _T("/tmp");
1068 #endif
1069     }
1070 #endif
1071
1072     return dir;
1073 }
1074
1075 bool wxFileName::Mkdir( int perm, int flags )
1076 {
1077     return wxFileName::Mkdir(GetPath(), perm, flags);
1078 }
1079
1080 bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
1081 {
1082     if ( flags & wxPATH_MKDIR_FULL )
1083     {
1084         // split the path in components
1085         wxFileName filename;
1086         filename.AssignDir(dir);
1087
1088         wxString currPath;
1089         if ( filename.HasVolume())
1090         {
1091             currPath << wxGetVolumeString(filename.GetVolume(), wxPATH_NATIVE);
1092         }
1093
1094         wxArrayString dirs = filename.GetDirs();
1095         size_t count = dirs.GetCount();
1096         for ( size_t i = 0; i < count; i++ )
1097         {
1098             if ( i > 0 ||
1099 #if defined(__WXMAC__) && !defined(__DARWIN__)
1100             // relative pathnames are exactely the other way round under mac...
1101                 !filename.IsAbsolute()
1102 #else
1103                 filename.IsAbsolute()
1104 #endif
1105             )
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, NULL, 0);
1802     if ( sz != 0 )
1803     {
1804         wxString pathOut;
1805         if ( ::GetShortPathName
1806                (
1807                 path,
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, NULL, 0);
1866         if ( dwSize > 0 )
1867         {
1868             if ( (*s_pfnGetLongPathName)
1869                  (
1870                   path,
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, &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(__WXMAC__) && !defined(__DARWIN__)
1951         format = wxPATH_MAC;
1952 #elif defined(__VMS)
1953         format = wxPATH_VMS;
1954 #else
1955         format = wxPATH_UNIX;
1956 #endif
1957     }
1958     return format;
1959 }
1960
1961 // ----------------------------------------------------------------------------
1962 // path splitting function
1963 // ----------------------------------------------------------------------------
1964
1965 /* static */
1966 void
1967 wxFileName::SplitVolume(const wxString& fullpathWithVolume,
1968                         wxString *pstrVolume,
1969                         wxString *pstrPath,
1970                         wxPathFormat format)
1971 {
1972     format = GetFormat(format);
1973
1974     wxString fullpath = fullpathWithVolume;
1975
1976     // special Windows UNC paths hack: transform \\share\path into share:path
1977     if ( IsUNCPath(fullpath, format) )
1978     {
1979         fullpath.erase(0, 2);
1980
1981         size_t posFirstSlash =
1982             fullpath.find_first_of(GetPathTerminators(format));
1983         if ( posFirstSlash != wxString::npos )
1984         {
1985             fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1986
1987             // UNC paths are always absolute, right? (FIXME)
1988             fullpath.insert(posFirstSlash + 1, 1, wxFILE_SEP_PATH_DOS);
1989         }
1990     }
1991
1992     // We separate the volume here
1993     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1994     {
1995         wxString sepVol = GetVolumeSeparator(format);
1996
1997         size_t posFirstColon = fullpath.find_first_of(sepVol);
1998         if ( posFirstColon != wxString::npos )
1999         {
2000             if ( pstrVolume )
2001             {
2002                 *pstrVolume = fullpath.Left(posFirstColon);
2003             }
2004
2005             // remove the volume name and the separator from the full path
2006             fullpath.erase(0, posFirstColon + sepVol.length());
2007         }
2008     }
2009
2010     if ( pstrPath )
2011         *pstrPath = fullpath;
2012 }
2013
2014 /* static */
2015 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
2016                            wxString *pstrVolume,
2017                            wxString *pstrPath,
2018                            wxString *pstrName,
2019                            wxString *pstrExt,
2020                            bool *hasExt,
2021                            wxPathFormat format)
2022 {
2023     format = GetFormat(format);
2024
2025     wxString fullpath;
2026     SplitVolume(fullpathWithVolume, pstrVolume, &fullpath, format);
2027
2028     // find the positions of the last dot and last path separator in the path
2029     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
2030     size_t posLastSlash = fullpath.find_last_of(GetPathTerminators(format));
2031
2032     // check whether this dot occurs at the very beginning of a path component
2033     if ( (posLastDot != wxString::npos) &&
2034          (posLastDot == 0 ||
2035             IsPathSeparator(fullpath[posLastDot - 1]) ||
2036             (format == wxPATH_VMS && fullpath[posLastDot - 1] == _T(']'))) )
2037     {
2038         // dot may be (and commonly -- at least under Unix -- is) the first
2039         // character of the filename, don't treat the entire filename as
2040         // extension in this case
2041         posLastDot = wxString::npos;
2042     }
2043
2044     // if we do have a dot and a slash, check that the dot is in the name part
2045     if ( (posLastDot != wxString::npos) &&
2046          (posLastSlash != wxString::npos) &&
2047          (posLastDot < posLastSlash) )
2048     {
2049         // the dot is part of the path, not the start of the extension
2050         posLastDot = wxString::npos;
2051     }
2052
2053     // now fill in the variables provided by user
2054     if ( pstrPath )
2055     {
2056         if ( posLastSlash == wxString::npos )
2057         {
2058             // no path at all
2059             pstrPath->Empty();
2060         }
2061         else
2062         {
2063             // take everything up to the path separator but take care to make
2064             // the path equal to something like '/', not empty, for the files
2065             // immediately under root directory
2066             size_t len = posLastSlash;
2067
2068             // this rule does not apply to mac since we do not start with colons (sep)
2069             // except for relative paths
2070             if ( !len && format != wxPATH_MAC)
2071                 len++;
2072
2073             *pstrPath = fullpath.Left(len);
2074
2075             // special VMS hack: remove the initial bracket
2076             if ( format == wxPATH_VMS )
2077             {
2078                 if ( (*pstrPath)[0u] == _T('[') )
2079                     pstrPath->erase(0, 1);
2080             }
2081         }
2082     }
2083
2084     if ( pstrName )
2085     {
2086         // take all characters starting from the one after the last slash and
2087         // up to, but excluding, the last dot
2088         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
2089         size_t count;
2090         if ( posLastDot == wxString::npos )
2091         {
2092             // take all until the end
2093             count = wxString::npos;
2094         }
2095         else if ( posLastSlash == wxString::npos )
2096         {
2097             count = posLastDot;
2098         }
2099         else // have both dot and slash
2100         {
2101             count = posLastDot - posLastSlash - 1;
2102         }
2103
2104         *pstrName = fullpath.Mid(nStart, count);
2105     }
2106
2107     // finally deal with the extension here: we have an added complication that
2108     // extension may be empty (but present) as in "foo." where trailing dot
2109     // indicates the empty extension at the end -- and hence we must remember
2110     // that we have it independently of pstrExt
2111     if ( posLastDot == wxString::npos )
2112     {
2113         // no extension
2114         if ( pstrExt )
2115             pstrExt->clear();
2116         if ( hasExt )
2117             *hasExt = false;
2118     }
2119     else
2120     {
2121         // take everything after the dot
2122         if ( pstrExt )
2123             *pstrExt = fullpath.Mid(posLastDot + 1);
2124         if ( hasExt )
2125             *hasExt = true;
2126     }
2127 }
2128
2129 /* static */
2130 void wxFileName::SplitPath(const wxString& fullpath,
2131                            wxString *path,
2132                            wxString *name,
2133                            wxString *ext,
2134                            wxPathFormat format)
2135 {
2136     wxString volume;
2137     SplitPath(fullpath, &volume, path, name, ext, format);
2138
2139     if ( path )
2140     {
2141         path->Prepend(wxGetVolumeString(volume, format));
2142     }
2143 }
2144
2145 // ----------------------------------------------------------------------------
2146 // time functions
2147 // ----------------------------------------------------------------------------
2148
2149 #if wxUSE_DATETIME
2150
2151 bool wxFileName::SetTimes(const wxDateTime *dtAccess,
2152                           const wxDateTime *dtMod,
2153                           const wxDateTime *dtCreate)
2154 {
2155 #if defined(__WIN32__)
2156     if ( IsDir() )
2157     {
2158         // VZ: please let me know how to do this if you can
2159         wxFAIL_MSG( _T("SetTimes() not implemented for the directories") );
2160     }
2161     else // file
2162     {
2163         wxFileHandle fh(GetFullPath(), wxFileHandle::Write);
2164         if ( fh.IsOk() )
2165         {
2166             FILETIME ftAccess, ftCreate, ftWrite;
2167
2168             if ( dtCreate )
2169                 ConvertWxToFileTime(&ftCreate, *dtCreate);
2170             if ( dtAccess )
2171                 ConvertWxToFileTime(&ftAccess, *dtAccess);
2172             if ( dtMod )
2173                 ConvertWxToFileTime(&ftWrite, *dtMod);
2174
2175             if ( ::SetFileTime(fh,
2176                                dtCreate ? &ftCreate : NULL,
2177                                dtAccess ? &ftAccess : NULL,
2178                                dtMod ? &ftWrite : NULL) )
2179             {
2180                 return true;
2181             }
2182         }
2183     }
2184 #elif defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
2185     wxUnusedVar(dtCreate);
2186
2187     if ( !dtAccess && !dtMod )
2188     {
2189         // can't modify the creation time anyhow, don't try
2190         return true;
2191     }
2192
2193     // if dtAccess or dtMod is not specified, use the other one (which must be
2194     // non NULL because of the test above) for both times
2195     utimbuf utm;
2196     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
2197     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
2198     if ( utime(GetFullPath().fn_str(), &utm) == 0 )
2199     {
2200         return true;
2201     }
2202 #else // other platform
2203     wxUnusedVar(dtAccess);
2204     wxUnusedVar(dtMod);
2205     wxUnusedVar(dtCreate);
2206 #endif // platforms
2207
2208     wxLogSysError(_("Failed to modify file times for '%s'"),
2209                   GetFullPath().c_str());
2210
2211     return false;
2212 }
2213
2214 bool wxFileName::Touch()
2215 {
2216 #if defined(__UNIX_LIKE__)
2217     // under Unix touching file is simple: just pass NULL to utime()
2218     if ( utime(GetFullPath().fn_str(), NULL) == 0 )
2219     {
2220         return true;
2221     }
2222
2223     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
2224
2225     return false;
2226 #else // other platform
2227     wxDateTime dtNow = wxDateTime::Now();
2228
2229     return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
2230 #endif // platforms
2231 }
2232
2233 bool wxFileName::GetTimes(wxDateTime *dtAccess,
2234                           wxDateTime *dtMod,
2235                           wxDateTime *dtCreate) const
2236 {
2237 #if defined(__WIN32__)
2238     // we must use different methods for the files and directories under
2239     // Windows as CreateFile(GENERIC_READ) doesn't work for the directories and
2240     // CreateFile(FILE_FLAG_BACKUP_SEMANTICS) works -- but only under NT and
2241     // not 9x
2242     bool ok;
2243     FILETIME ftAccess, ftCreate, ftWrite;
2244     if ( IsDir() )
2245     {
2246         // implemented in msw/dir.cpp
2247         extern bool wxGetDirectoryTimes(const wxString& dirname,
2248                                         FILETIME *, FILETIME *, FILETIME *);
2249
2250         // we should pass the path without the trailing separator to
2251         // wxGetDirectoryTimes()
2252         ok = wxGetDirectoryTimes(GetPath(wxPATH_GET_VOLUME),
2253                                  &ftAccess, &ftCreate, &ftWrite);
2254     }
2255     else // file
2256     {
2257         wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
2258         if ( fh.IsOk() )
2259         {
2260             ok = ::GetFileTime(fh,
2261                                dtCreate ? &ftCreate : NULL,
2262                                dtAccess ? &ftAccess : NULL,
2263                                dtMod ? &ftWrite : NULL) != 0;
2264         }
2265         else
2266         {
2267             ok = false;
2268         }
2269     }
2270
2271     if ( ok )
2272     {
2273         if ( dtCreate )
2274             ConvertFileTimeToWx(dtCreate, ftCreate);
2275         if ( dtAccess )
2276             ConvertFileTimeToWx(dtAccess, ftAccess);
2277         if ( dtMod )
2278             ConvertFileTimeToWx(dtMod, ftWrite);
2279
2280         return true;
2281     }
2282 #elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || defined(__OS2__) || (defined(__DOS__) && defined(__WATCOMC__))
2283     // no need to test for IsDir() here
2284     wxStructStat stBuf;
2285     if ( wxStat( GetFullPath().c_str(), &stBuf) == 0 )
2286     {
2287         if ( dtAccess )
2288             dtAccess->Set(stBuf.st_atime);
2289         if ( dtMod )
2290             dtMod->Set(stBuf.st_mtime);
2291         if ( dtCreate )
2292             dtCreate->Set(stBuf.st_ctime);
2293
2294         return true;
2295     }
2296 #else // other platform
2297     wxUnusedVar(dtAccess);
2298     wxUnusedVar(dtMod);
2299     wxUnusedVar(dtCreate);
2300 #endif // platforms
2301
2302     wxLogSysError(_("Failed to retrieve file times for '%s'"),
2303                   GetFullPath().c_str());
2304
2305     return false;
2306 }
2307
2308 #endif // wxUSE_DATETIME
2309
2310
2311 // ----------------------------------------------------------------------------
2312 // file size functions
2313 // ----------------------------------------------------------------------------
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)
2332         return wxInvalidSize;
2333
2334     // compose the low-order and high-order byte sizes
2335     return wxULongLong(ret | (lpFileSizeHigh << sizeof(WORD)*2));
2336
2337 #else           // ! __WIN32__
2338
2339     wxStructStat st;
2340 #ifndef wxNEED_WX_UNISTD_H
2341     if (wxStat( filename.fn_str() , &st) != 0)
2342 #else
2343     if (wxStat( filename, &st) != 0)
2344 #endif
2345         return wxInvalidSize;
2346     return wxULongLong(st.st_size);
2347 #endif
2348 }
2349
2350 /* static */
2351 wxString wxFileName::GetHumanReadableSize(const wxULongLong &bs,
2352                                           const wxString &nullsize,
2353                                           int precision)
2354 {
2355     static const double KILOBYTESIZE = 1024.0;
2356     static const double MEGABYTESIZE = 1024.0*KILOBYTESIZE;
2357     static const double GIGABYTESIZE = 1024.0*MEGABYTESIZE;
2358     static const double TERABYTESIZE = 1024.0*GIGABYTESIZE;
2359
2360     if (bs == 0 || bs == wxInvalidSize)
2361         return nullsize;
2362
2363     double bytesize = bs.ToDouble();
2364     if (bytesize < KILOBYTESIZE)
2365         return wxString::Format(_("%s B"), bs.ToString().c_str());
2366     if (bytesize < MEGABYTESIZE)
2367         return wxString::Format(_("%.*f kB"), precision, bytesize/KILOBYTESIZE);
2368     if (bytesize < GIGABYTESIZE)
2369         return wxString::Format(_("%.*f MB"), precision, bytesize/MEGABYTESIZE);
2370     if (bytesize < TERABYTESIZE)
2371         return wxString::Format(_("%.*f GB"), precision, bytesize/GIGABYTESIZE);
2372
2373     return wxString::Format(_("%.*f TB"), precision, bytesize/TERABYTESIZE);
2374 }
2375
2376 wxULongLong wxFileName::GetSize() const
2377 {
2378     return GetSize(GetFullPath());
2379 }
2380
2381 wxString wxFileName::GetHumanReadableSize(const wxString &failmsg, int precision) const
2382 {
2383     return GetHumanReadableSize(GetSize(), failmsg, precision);
2384 }
2385
2386
2387 // ----------------------------------------------------------------------------
2388 // Mac-specific functions
2389 // ----------------------------------------------------------------------------
2390
2391 #ifdef __WXMAC__
2392
2393 const short kMacExtensionMaxLength = 16 ;
2394 class MacDefaultExtensionRecord
2395 {
2396 public :
2397   MacDefaultExtensionRecord()
2398   {
2399     m_ext[0] = 0 ;
2400     m_type = m_creator = 0 ;
2401   }
2402   MacDefaultExtensionRecord( const MacDefaultExtensionRecord& from )
2403   {
2404     wxStrcpy( m_ext , from.m_ext ) ;
2405     m_type = from.m_type ;
2406     m_creator = from.m_creator ;
2407   }
2408   MacDefaultExtensionRecord( const wxChar * extension , OSType type , OSType creator )
2409   {
2410     wxStrncpy( m_ext , extension , kMacExtensionMaxLength ) ;
2411     m_ext[kMacExtensionMaxLength] = 0 ;
2412     m_type = type ;
2413     m_creator = creator ;
2414   }
2415   wxChar m_ext[kMacExtensionMaxLength] ;
2416   OSType m_type ;
2417   OSType m_creator ;
2418 }  ;
2419
2420 WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray) ;
2421
2422 bool gMacDefaultExtensionsInited = false ;
2423
2424 #include "wx/arrimpl.cpp"
2425
2426 WX_DEFINE_EXPORTED_OBJARRAY(MacDefaultExtensionArray) ;
2427
2428 MacDefaultExtensionArray gMacDefaultExtensions ;
2429
2430 // load the default extensions
2431 MacDefaultExtensionRecord gDefaults[] =
2432 {
2433     MacDefaultExtensionRecord( wxT("txt") , 'TEXT' , 'ttxt' ) ,
2434     MacDefaultExtensionRecord( wxT("tif") , 'TIFF' , '****' ) ,
2435     MacDefaultExtensionRecord( wxT("jpg") , 'JPEG' , '****' ) ,
2436 } ;
2437
2438 static void MacEnsureDefaultExtensionsLoaded()
2439 {
2440     if ( !gMacDefaultExtensionsInited )
2441     {
2442         // we could load the pc exchange prefs here too
2443         for ( size_t i = 0 ; i < WXSIZEOF( gDefaults ) ; ++i )
2444         {
2445             gMacDefaultExtensions.Add( gDefaults[i] ) ;
2446         }
2447         gMacDefaultExtensionsInited = true ;
2448     }
2449 }
2450
2451 bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
2452 {
2453     FSRef fsRef ;
2454     FSCatalogInfo catInfo;
2455     FileInfo *finfo ;
2456
2457     if ( wxMacPathToFSRef( GetFullPath() , &fsRef ) == noErr )
2458     {
2459         if ( FSGetCatalogInfo (&fsRef, kFSCatInfoFinderInfo, &catInfo, NULL, NULL, NULL) == noErr )
2460         {
2461             finfo = (FileInfo*)&catInfo.finderInfo;
2462             finfo->fileType = type ;
2463             finfo->fileCreator = creator ;
2464             FSSetCatalogInfo( &fsRef, kFSCatInfoFinderInfo, &catInfo ) ;
2465             return true ;
2466         }
2467     }
2468     return false ;
2469 }
2470
2471 bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator )
2472 {
2473     FSRef fsRef ;
2474     FSCatalogInfo catInfo;
2475     FileInfo *finfo ;
2476
2477     if ( wxMacPathToFSRef( GetFullPath() , &fsRef ) == noErr )
2478     {
2479         if ( FSGetCatalogInfo (&fsRef, kFSCatInfoFinderInfo, &catInfo, NULL, NULL, NULL) == noErr )
2480         {
2481             finfo = (FileInfo*)&catInfo.finderInfo;
2482             *type = finfo->fileType ;
2483             *creator = finfo->fileCreator ;
2484             return true ;
2485         }
2486     }
2487     return false ;
2488 }
2489
2490 bool wxFileName::MacSetDefaultTypeAndCreator()
2491 {
2492     wxUint32 type , creator ;
2493     if ( wxFileName::MacFindDefaultTypeAndCreator(GetExt() , &type ,
2494       &creator ) )
2495     {
2496         return MacSetTypeAndCreator( type , creator ) ;
2497     }
2498     return false;
2499 }
2500
2501 bool wxFileName::MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator )
2502 {
2503   MacEnsureDefaultExtensionsLoaded() ;
2504   wxString extl = ext.Lower() ;
2505   for( int i = gMacDefaultExtensions.Count() - 1 ; i >= 0 ; --i )
2506   {
2507     if ( gMacDefaultExtensions.Item(i).m_ext == extl )
2508     {
2509       *type = gMacDefaultExtensions.Item(i).m_type ;
2510       *creator = gMacDefaultExtensions.Item(i).m_creator ;
2511       return true ;
2512     }
2513   }
2514   return false ;
2515 }
2516
2517 void wxFileName::MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator )
2518 {
2519   MacEnsureDefaultExtensionsLoaded() ;
2520   MacDefaultExtensionRecord rec ;
2521   rec.m_type = type ;
2522   rec.m_creator = creator ;
2523   wxStrncpy( rec.m_ext , ext.Lower().c_str() , kMacExtensionMaxLength ) ;
2524   gMacDefaultExtensions.Add( rec ) ;
2525 }
2526 #endif