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             if ( mode == Read )
 179                 wxLogSysError(_("Failed to open '%s' for reading"),
 180                               filename.c_str());
 181             else
 182                 wxLogSysError(_("Failed to open '%s' for writing"),
 183                               filename.c_str());
 184         }
 185     }
 186
 187     ~wxFileHandle()
 188     {
 189         if ( m_hFile != INVALID_HANDLE_VALUE )
 190         {
 191             if ( !::CloseHandle(m_hFile) )
 192             {
 193                 wxLogSysError(_("Failed to close file handle"));
 194             }
 195         }
 196     }
 197
 198     // return true only if the file could be opened successfully
 199     bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
 200
 201     // get the handle
 202     operator HANDLE() const { return m_hFile; }
 203
 204 private:
 205     HANDLE m_hFile;
 206 };
 207
 208 #endif // __WIN32__
 209
 210 // ----------------------------------------------------------------------------
 211 // private functions
 212 // ----------------------------------------------------------------------------
 213
 214 #if wxUSE_DATETIME && defined(__WIN32__) && !defined(__WXMICROWIN__)
 215
 216 // convert between wxDateTime and FILETIME which is a 64-bit value representing
 217 // the number of 100-nanosecond intervals since January 1, 1601.
 218
 219 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 220 {
 221     FILETIME ftcopy = ft;
 222     FILETIME ftLocal;
 223     if ( !::FileTimeToLocalFileTime(&ftcopy, &ftLocal) )
 224     {
 225         wxLogLastError(_T("FileTimeToLocalFileTime"));
 226     }
 227
 228     SYSTEMTIME st;
 229     if ( !::FileTimeToSystemTime(&ftLocal, &st) )
 230     {
 231         wxLogLastError(_T("FileTimeToSystemTime"));
 232     }
 233
 234     dt->Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
 235             st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
 236 }
 237
 238 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 239 {
 240     SYSTEMTIME st;
 241     st.wDay = dt.GetDay();
 242     st.wMonth = (WORD)(dt.GetMonth() + 1);
 243     st.wYear = (WORD)dt.GetYear();
 244     st.wHour = dt.GetHour();
 245     st.wMinute = dt.GetMinute();
 246     st.wSecond = dt.GetSecond();
 247     st.wMilliseconds = dt.GetMillisecond();
 248
 249     FILETIME ftLocal;
 250     if ( !::SystemTimeToFileTime(&st, &ftLocal) )
 251     {
 252         wxLogLastError(_T("SystemTimeToFileTime"));
 253     }
 254
 255     if ( !::LocalFileTimeToFileTime(&ftLocal, ft) )
 256     {
 257         wxLogLastError(_T("LocalFileTimeToFileTime"));
 258     }
 259 }
 260
 261 #endif // wxUSE_DATETIME && __WIN32__
 262
 263 // return a string with the volume par
 264 static wxString wxGetVolumeString(const wxString& volume, wxPathFormat format)
 265 {
 266     wxString path;
 267
 268     if ( !volume.empty() )
 269     {
 270         format = wxFileName::GetFormat(format);
 271
 272         // Special Windows UNC paths hack, part 2: undo what we did in
 273         // SplitPath() and make an UNC path if we have a drive which is not a
 274         // single letter (hopefully the network shares can't be one letter only
 275         // although I didn't find any authoritative docs on this)
 276         if ( format == wxPATH_DOS && volume.length() > 1 )
 277         {
 278             path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
 279         }
 280         else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
 281         {
 282             path << volume << wxFileName::GetVolumeSeparator(format);
 283         }
 284         // else ignore
 285     }
 286
 287     return path;
 288 }
 289
 290 // return true if the format used is the DOS/Windows one and the string looks
 291 // like a UNC path
 292 static bool IsUNCPath(const wxString& path, wxPathFormat format)
 293 {
 294     return format == wxPATH_DOS &&
 295                 path.length() >= 4 && // "\\a" can't be a UNC path
 296                     path[0u] == wxFILE_SEP_PATH_DOS &&
 297                         path[1u] == wxFILE_SEP_PATH_DOS &&
 298                             path[2u] != wxFILE_SEP_PATH_DOS;
 299 }
 300
 301 // ============================================================================
 302 // implementation
 303 // ============================================================================
 304
 305 // ----------------------------------------------------------------------------
 306 // wxFileName construction
 307 // ----------------------------------------------------------------------------
 308
 309 void wxFileName::Assign( const wxFileName &filepath )
 310 {
 311     m_volume = filepath.GetVolume();
 312     m_dirs = filepath.GetDirs();
 313     m_name = filepath.GetName();
 314     m_ext = filepath.GetExt();
 315     m_relative = filepath.m_relative;
 316     m_hasExt = filepath.m_hasExt;
 317 }
 318
 319 void wxFileName::Assign(const wxString& volume,
 320                         const wxString& path,
 321                         const wxString& name,
 322                         const wxString& ext,
 323                         bool hasExt,
 324                         wxPathFormat format)
 325 {
 326     // we should ignore paths which look like UNC shares because we already
 327     // have the volume here and the UNC notation (\\server\path) is only valid
 328     // for paths which don't start with a volume, so prevent SetPath() from
 329     // recognizing "\\foo\bar" in "c:\\foo\bar" as an UNC path
 330     //
 331     // note also that this is a rather ugly way to do what we want (passing
 332     // some kind of flag telling to ignore UNC paths to SetPath() would be
 333     // better) but this is the safest thing to do to avoid breaking backwards
 334     // compatibility in 2.8
 335     if ( IsUNCPath(path, format) )
 336     {
 337         // remove one of the 2 leading backslashes to ensure that it's not
 338         // recognized as an UNC path by SetPath()
 339         wxString pathNonUNC(path, 1, wxString::npos);
 340         SetPath(pathNonUNC, format);
 341     }
 342     else // no UNC complications
 343     {
 344         SetPath(path, format);
 345     }
 346
 347     m_volume = volume;
 348     m_ext = ext;
 349     m_name = name;
 350
 351     m_hasExt = hasExt;
 352 }
 353
 354 void wxFileName::SetPath( const wxString& pathOrig, wxPathFormat format )
 355 {
 356     m_dirs.Clear();
 357
 358     if ( pathOrig.empty() )
 359     {
 360         // no path at all
 361         m_relative = true;
 362
 363         return;
 364     }
 365
 366     format = GetFormat( format );
 367
 368     // 0) deal with possible volume part first
 369     wxString volume,
 370              path;
 371     SplitVolume(pathOrig, &volume, &path, format);
 372     if ( !volume.empty() )
 373     {
 374         m_relative = false;
 375
 376         SetVolume(volume);
 377     }
 378
 379     // 1) Determine if the path is relative or absolute.
 380     wxChar leadingChar = path[0u];
 381
 382     switch (format)
 383     {
 384         case wxPATH_MAC:
 385             m_relative = leadingChar == wxT(':');
 386
 387             // We then remove a leading ":". The reason is in our
 388             // storage form for relative paths:
 389             // ":dir:file.txt" actually means "./dir/file.txt" in
 390             // DOS notation and should get stored as
 391             // (relative) (dir) (file.txt)
 392             // "::dir:file.txt" actually means "../dir/file.txt"
 393             // stored as (relative) (..) (dir) (file.txt)
 394             // This is important only for the Mac as an empty dir
 395             // actually means <UP>, whereas under DOS, double
 396             // slashes can be ignored: "\\\\" is the same as "\\".
 397             if (m_relative)
 398                 path.erase( 0, 1 );
 399             break;
 400
 401         case wxPATH_VMS:
 402             // TODO: what is the relative path format here?
 403             m_relative = false;
 404             break;
 405
 406         default:
 407             wxFAIL_MSG( _T("Unknown path format") );
 408             // !! Fall through !!
 409
 410         case wxPATH_UNIX:
 411             // the paths of the form "~" or "~username" are absolute
 412             m_relative = leadingChar != wxT('/') && leadingChar != _T('~');
 413             break;
 414
 415         case wxPATH_DOS:
 416             m_relative = !IsPathSeparator(leadingChar, format);
 417             break;
 418
 419     }
 420
 421     // 2) Break up the path into its members. If the original path
 422     //    was just "/" or "\\", m_dirs will be empty. We know from
 423     //    the m_relative field, if this means "nothing" or "root dir".
 424
 425     wxStringTokenizer tn( path, GetPathSeparators(format) );
 426
 427     while ( tn.HasMoreTokens() )
 428     {
 429         wxString token = tn.GetNextToken();
 430
 431         // Remove empty token under DOS and Unix, interpret them
 432         // as .. under Mac.
 433         if (token.empty())
 434         {
 435             if (format == wxPATH_MAC)
 436                 m_dirs.Add( wxT("..") );
 437             // else ignore
 438         }
 439         else
 440         {
 441            m_dirs.Add( token );
 442         }
 443     }
 444 }
 445
 446 void wxFileName::Assign(const wxString& fullpath,
 447                         wxPathFormat format)
 448 {
 449     wxString volume, path, name, ext;
 450     bool hasExt;
 451     SplitPath(fullpath, &volume, &path, &name, &ext, &hasExt, format);
 452
 453     Assign(volume, path, name, ext, hasExt, format);
 454 }
 455
 456 void wxFileName::Assign(const wxString& fullpathOrig,
 457                         const wxString& fullname,
 458                         wxPathFormat format)
 459 {
 460     // always recognize fullpath as directory, even if it doesn't end with a
 461     // slash
 462     wxString fullpath = fullpathOrig;
 463     if ( !fullpath.empty() && !wxEndsWithPathSeparator(fullpath) )
 464     {
 465         fullpath += GetPathSeparator(format);
 466     }
 467
 468     wxString volume, path, name, ext;
 469     bool hasExt;
 470
 471     // do some consistency checks in debug mode: the name should be really just
 472     // the filename and the path should be really just a path
 473 #ifdef __WXDEBUG__
 474     wxString volDummy, pathDummy, nameDummy, extDummy;
 475
 476     SplitPath(fullname, &volDummy, &pathDummy, &name, &ext, &hasExt, format);
 477
 478     wxASSERT_MSG( volDummy.empty() && pathDummy.empty(),
 479                   _T("the file name shouldn't contain the path") );
 480
 481     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 482
 483     wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
 484                   _T("the path shouldn't contain file name nor extension") );
 485
 486 #else // !__WXDEBUG__
 487     SplitPath(fullname, NULL /* no volume */, NULL /* no path */,
 488                         &name, &ext, &hasExt, format);
 489     SplitPath(fullpath, &volume, &path, NULL, NULL, format);
 490 #endif // __WXDEBUG__/!__WXDEBUG__
 491
 492     Assign(volume, path, name, ext, hasExt, format);
 493 }
 494
 495 void wxFileName::Assign(const wxString& pathOrig,
 496                         const wxString& name,
 497                         const wxString& ext,
 498                         wxPathFormat format)
 499 {
 500     wxString volume,
 501              path;
 502     SplitVolume(pathOrig, &volume, &path, format);
 503
 504     Assign(volume, path, name, ext, format);
 505 }
 506
 507 void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 508 {
 509     Assign(dir, wxEmptyString, format);
 510 }
 511
 512 void wxFileName::Clear()
 513 {
 514     m_dirs.Clear();
 515
 516     m_volume =
 517     m_name =
 518     m_ext = wxEmptyString;
 519
 520     // we don't have any absolute path for now
 521     m_relative = true;
 522
 523     // nor any extension
 524     m_hasExt = false;
 525 }
 526
 527 /* static */
 528 wxFileName wxFileName::FileName(const wxString& file, wxPathFormat format)
 529 {
 530     return wxFileName(file, format);
 531 }
 532
 533 /* static */
 534 wxFileName wxFileName::DirName(const wxString& dir, wxPathFormat format)
 535 {
 536     wxFileName fn;
 537     fn.AssignDir(dir, format);
 538     return fn;
 539 }
 540
 541 // ----------------------------------------------------------------------------
 542 // existence tests
 543 // ----------------------------------------------------------------------------
 544
 545 bool wxFileName::FileExists() const
 546 {
 547     return wxFileName::FileExists( GetFullPath() );
 548 }
 549
 550 bool wxFileName::FileExists( const wxString &file )
 551 {
 552     return ::wxFileExists( file );
 553 }
 554
 555 bool wxFileName::DirExists() const
 556 {
 557     return wxFileName::DirExists( GetPath() );
 558 }
 559
 560 bool wxFileName::DirExists( const wxString &dir )
 561 {
 562     return ::wxDirExists( dir );
 563 }
 564
 565 // ----------------------------------------------------------------------------
 566 // CWD and HOME stuff
 567 // ----------------------------------------------------------------------------
 568
 569 void wxFileName::AssignCwd(const wxString& volume)
 570 {
 571     AssignDir(wxFileName::GetCwd(volume));
 572 }
 573
 574 /* static */
 575 wxString wxFileName::GetCwd(const wxString& volume)
 576 {
 577     // if we have the volume, we must get the current directory on this drive
 578     // and to do this we have to chdir to this volume - at least under Windows,
 579     // I don't know how to get the current drive on another volume elsewhere
 580     // (TODO)
 581     wxString cwdOld;
 582     if ( !volume.empty() )
 583     {
 584         cwdOld = wxGetCwd();
 585         SetCwd(volume + GetVolumeSeparator());
 586     }
 587
 588     wxString cwd = ::wxGetCwd();
 589
 590     if ( !volume.empty() )
 591     {
 592         SetCwd(cwdOld);
 593     }
 594
 595     return cwd;
 596 }
 597
 598 bool wxFileName::SetCwd()
 599 {
 600     return wxFileName::SetCwd( GetPath() );
 601 }
 602
 603 bool wxFileName::SetCwd( const wxString &cwd )
 604 {
 605     return ::wxSetWorkingDirectory( cwd );
 606 }
 607
 608 void wxFileName::AssignHomeDir()
 609 {
 610     AssignDir(wxFileName::GetHomeDir());
 611 }
 612
 613 wxString wxFileName::GetHomeDir()
 614 {
 615     return ::wxGetHomeDir();
 616 }
 617
 618
 619 // ----------------------------------------------------------------------------
 620 // CreateTempFileName
 621 // ----------------------------------------------------------------------------
 622
 623 #if wxUSE_FILE || wxUSE_FFILE
 624
 625
 626 #if !defined wx_fdopen && defined HAVE_FDOPEN
 627     #define wx_fdopen fdopen
 628 #endif
 629
 630 // NB: GetTempFileName() under Windows creates the file, so using
 631 //     O_EXCL there would fail
 632 #ifdef __WINDOWS__
 633     #define wxOPEN_EXCL 0
 634 #else
 635     #define wxOPEN_EXCL O_EXCL
 636 #endif
 637
 638
 639 #ifdef wxOpenOSFHandle
 640 #define WX_HAVE_DELETE_ON_CLOSE
 641 // On Windows create a file with the FILE_FLAGS_DELETE_ON_CLOSE flags.
 642 //
 643 static int wxOpenWithDeleteOnClose(const wxString& filename)
 644 {
 645     DWORD access = GENERIC_READ | GENERIC_WRITE;
 646
 647     DWORD disposition = OPEN_ALWAYS;
 648
 649     DWORD attributes = FILE_ATTRIBUTE_TEMPORARY |
 650                        FILE_FLAG_DELETE_ON_CLOSE;
 651
 652     HANDLE h = ::CreateFile(filename, access, 0, NULL,
 653                             disposition, attributes, NULL);
 654
 655     return wxOpenOSFHandle(h, wxO_BINARY);
 656 }
 657 #endif // wxOpenOSFHandle
 658
 659
 660 // Helper to open the file
 661 //
 662 static int wxTempOpen(const wxString& path, bool *deleteOnClose)
 663 {
 664 #ifdef WX_HAVE_DELETE_ON_CLOSE
 665     if (*deleteOnClose)
 666         return wxOpenWithDeleteOnClose(path);
 667 #endif
 668
 669     *deleteOnClose = false;
 670
 671     return wxOpen(path, wxO_BINARY | O_RDWR | O_CREAT | wxOPEN_EXCL, 0600);
 672 }
 673
 674
 675 #if wxUSE_FFILE
 676 // Helper to open the file and attach it to the wxFFile
 677 //
 678 static bool wxTempOpen(wxFFile *file, const wxString& path, bool *deleteOnClose)
 679 {
 680 #ifndef wx_fdopen
 681     *deleteOnClose = false;
 682     return file->Open(path, _T("w+b"));
 683 #else // wx_fdopen
 684     int fd = wxTempOpen(path, deleteOnClose);
 685     if (fd == -1)
 686         return false;
 687     file->Attach(wx_fdopen(fd, "w+b"));
 688     return file->IsOpened();
 689 #endif // wx_fdopen
 690 }
 691 #endif // wxUSE_FFILE
 692
 693
 694 #if !wxUSE_FILE
 695     #define WXFILEARGS(x, y) y
 696 #elif !wxUSE_FFILE
 697     #define WXFILEARGS(x, y) x
 698 #else
 699     #define WXFILEARGS(x, y) x, y
 700 #endif
 701
 702
 703 // Implementation of wxFileName::CreateTempFileName().
 704 //
 705 static wxString wxCreateTempImpl(
 706         const wxString& prefix,
 707         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp),
 708         bool *deleteOnClose = NULL)
 709 {
 710 #if wxUSE_FILE && wxUSE_FFILE
 711     wxASSERT(fileTemp == NULL || ffileTemp == NULL);
 712 #endif
 713     wxString path, dir, name;
 714     bool wantDeleteOnClose = false;
 715
 716     if (deleteOnClose)
 717     {
 718         // set the result to false initially
 719         wantDeleteOnClose = *deleteOnClose;
 720         *deleteOnClose = false;
 721     }
 722     else
 723     {
 724         // easier if it alwasys points to something
 725         deleteOnClose = &wantDeleteOnClose;
 726     }
 727
 728     // use the directory specified by the prefix
 729     wxFileName::SplitPath(prefix, &dir, &name, NULL /* extension */);
 730
 731     if (dir.empty())
 732     {
 733         dir = wxFileName::GetTempDir();
 734     }
 735
 736 #if defined(__WXWINCE__)
 737     path = dir + wxT("\\") + name;
 738     int i = 1;
 739     while (wxFileName::FileExists(path))
 740     {
 741         path = dir + wxT("\\") + name ;
 742         path << i;
 743         i ++;
 744     }
 745
 746 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 747     if ( !::GetTempFileName(dir, name, 0, wxStringBuffer(path, MAX_PATH + 1)) )
 748     {
 749         wxLogLastError(_T("GetTempFileName"));
 750
 751         path.clear();
 752     }
 753
 754 #else // !Windows
 755     path = dir;
 756
 757     if ( !wxEndsWithPathSeparator(dir) &&
 758             (name.empty() || !wxIsPathSeparator(name[0u])) )
 759     {
 760         path += wxFILE_SEP_PATH;
 761     }
 762
 763     path += name;
 764
 765 #if defined(HAVE_MKSTEMP)
 766     // scratch space for mkstemp()
 767     path += _T("XXXXXX");
 768
 769     // we need to copy the path to the buffer in which mkstemp() can modify it
 770     wxCharBuffer buf( wxConvFile.cWX2MB( path ) );
 771
 772     // cast is safe because the string length doesn't change
 773     int fdTemp = mkstemp( (char*)(const char*) buf );
 774     if ( fdTemp == -1 )
 775     {
 776         // this might be not necessary as mkstemp() on most systems should have
 777         // already done it but it doesn't hurt neither...
 778         path.clear();
 779     }
 780     else // mkstemp() succeeded
 781     {
 782         path = wxConvFile.cMB2WX( (const char*) buf );
 783
 784     #if wxUSE_FILE
 785         // avoid leaking the fd
 786         if ( fileTemp )
 787         {
 788             fileTemp->Attach(fdTemp);
 789         }
 790         else
 791     #endif
 792
 793     #if wxUSE_FFILE
 794         if ( ffileTemp )
 795         {
 796         #ifdef wx_fdopen
 797             ffileTemp->Attach(wx_fdopen(fdTemp, "r+b"));
 798         #else
 799             ffileTemp->Open(path, _T("r+b"));
 800             close(fdTemp);
 801         #endif
 802         }
 803         else
 804     #endif
 805
 806         {
 807             close(fdTemp);
 808         }
 809     }
 810 #else // !HAVE_MKSTEMP
 811
 812 #ifdef HAVE_MKTEMP
 813     // same as above
 814     path += _T("XXXXXX");
 815
 816     wxCharBuffer buf = wxConvFile.cWX2MB( path );
 817     if ( !mktemp( (char*)(const char*) buf ) )
 818     {
 819         path.clear();
 820     }
 821     else
 822     {
 823         path = wxConvFile.cMB2WX( (const char*) buf );
 824     }
 825 #else // !HAVE_MKTEMP (includes __DOS__)
 826     // generate the unique file name ourselves
 827     #if !defined(__DOS__) && !defined(__PALMOS__) && (!defined(__MWERKS__) || defined(__DARWIN__) )
 828     path << (unsigned int)getpid();
 829     #endif
 830
 831     wxString pathTry;
 832
 833     static const size_t numTries = 1000;
 834     for ( size_t n = 0; n < numTries; n++ )
 835     {
 836         // 3 hex digits is enough for numTries == 1000 < 4096
 837         pathTry = path + wxString::Format(_T("%.03x"), (unsigned int) n);
 838         if ( !wxFileName::FileExists(pathTry) )
 839         {
 840             break;
 841         }
 842
 843         pathTry.clear();
 844     }
 845
 846     path = pathTry;
 847 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 848
 849 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 850
 851 #endif // Windows/!Windows
 852
 853     if ( path.empty() )
 854     {
 855         wxLogSysError(_("Failed to create a temporary file name"));
 856     }
 857     else
 858     {
 859         bool ok = true;
 860
 861         // open the file - of course, there is a race condition here, this is
 862         // why we always prefer using mkstemp()...
 863     #if wxUSE_FILE
 864         if ( fileTemp && !fileTemp->IsOpened() )
 865         {
 866             *deleteOnClose = wantDeleteOnClose;
 867             int fd = wxTempOpen(path, deleteOnClose);
 868             if (fd != -1)
 869                 fileTemp->Attach(fd);
 870             else
 871                 ok = false;
 872         }
 873     #endif
 874
 875     #if wxUSE_FFILE
 876         if ( ffileTemp && !ffileTemp->IsOpened() )
 877         {
 878             *deleteOnClose = wantDeleteOnClose;
 879             ok = wxTempOpen(ffileTemp, path, deleteOnClose);
 880         }
 881     #endif
 882
 883         if ( !ok )
 884         {
 885             // FIXME: If !ok here should we loop and try again with another
 886             //        file name?  That is the standard recourse if open(O_EXCL)
 887             //        fails, though of course it should be protected against
 888             //        possible infinite looping too.
 889
 890             wxLogError(_("Failed to open temporary file."));
 891
 892             path.clear();
 893         }
 894     }
 895
 896     return path;
 897 }
 898
 899
 900 static bool wxCreateTempImpl(
 901         const wxString& prefix,
 902         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp),
 903         wxString *name)
 904 {
 905     bool deleteOnClose = true;
 906
 907     *name = wxCreateTempImpl(prefix,
 908                              WXFILEARGS(fileTemp, ffileTemp),
 909                              &deleteOnClose);
 910
 911     bool ok = !name->empty();
 912
 913     if (deleteOnClose)
 914         name->clear();
 915 #ifdef __UNIX__
 916     else if (ok && wxRemoveFile(*name))
 917         name->clear();
 918 #endif
 919
 920     return ok;
 921 }
 922
 923
 924 static void wxAssignTempImpl(
 925         wxFileName *fn,
 926         const wxString& prefix,
 927         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp))
 928 {
 929     wxString tempname;
 930     tempname = wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, ffileTemp));
 931
 932     if ( tempname.empty() )
 933     {
 934         // error, failed to get temp file name
 935         fn->Clear();
 936     }
 937     else // ok
 938     {
 939         fn->Assign(tempname);
 940     }
 941 }
 942
 943
 944 void wxFileName::AssignTempFileName(const wxString& prefix)
 945 {
 946     wxAssignTempImpl(this, prefix, WXFILEARGS(NULL, NULL));
 947 }
 948
 949 /* static */
 950 wxString wxFileName::CreateTempFileName(const wxString& prefix)
 951 {
 952     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, NULL));
 953 }
 954
 955 #endif // wxUSE_FILE || wxUSE_FFILE
 956
 957
 958 #if wxUSE_FILE
 959
 960 wxString wxCreateTempFileName(const wxString& prefix,
 961                               wxFile *fileTemp,
 962                               bool *deleteOnClose)
 963 {
 964     return wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, NULL), deleteOnClose);
 965 }
 966
 967 bool wxCreateTempFile(const wxString& prefix,
 968                       wxFile *fileTemp,
 969                       wxString *name)
 970 {
 971     return wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, NULL), name);
 972 }
 973
 974 void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
 975 {
 976     wxAssignTempImpl(this, prefix, WXFILEARGS(fileTemp, NULL));
 977 }
 978
 979 /* static */
 980 wxString
 981 wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
 982 {
 983     return wxCreateTempFileName(prefix, fileTemp);
 984 }
 985
 986 #endif // wxUSE_FILE
 987
 988
 989 #if wxUSE_FFILE
 990
 991 wxString wxCreateTempFileName(const wxString& prefix,
 992                               wxFFile *fileTemp,
 993                               bool *deleteOnClose)
 994 {
 995     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, fileTemp), deleteOnClose);
 996 }
 997
 998 bool wxCreateTempFile(const wxString& prefix,
 999                       wxFFile *fileTemp,
1000                       wxString *name)
1001 {
1002     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, fileTemp), name);
1003
1004 }
1005
1006 void wxFileName::AssignTempFileName(const wxString& prefix, wxFFile *fileTemp)
1007 {
1008     wxAssignTempImpl(this, prefix, WXFILEARGS(NULL, fileTemp));
1009 }
1010
1011 /* static */
1012 wxString
1013 wxFileName::CreateTempFileName(const wxString& prefix, wxFFile *fileTemp)
1014 {
1015     return wxCreateTempFileName(prefix, fileTemp);
1016 }
1017
1018 #endif // wxUSE_FFILE
1019
1020
1021 // ----------------------------------------------------------------------------
1022 // directory operations
1023 // ----------------------------------------------------------------------------
1024
1025 wxString wxFileName::GetTempDir()
1026 {
1027     wxString dir;
1028     dir = wxGetenv(_T("TMPDIR"));
1029     if (dir.empty())
1030     {
1031         dir = wxGetenv(_T("TMP"));
1032         if (dir.empty())
1033         {
1034             dir = wxGetenv(_T("TEMP"));
1035         }
1036     }
1037
1038 #if defined(__WXWINCE__)
1039     if (dir.empty())
1040     {
1041         // FIXME. Create \temp dir?
1042         if (DirExists(wxT("\\temp")))
1043             dir = wxT("\\temp");
1044     }
1045 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1046
1047     if ( dir.empty() )
1048     {
1049         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
1050         {
1051             wxLogLastError(_T("GetTempPath"));
1052         }
1053
1054         if ( dir.empty() )
1055         {
1056             // GetTempFileName() fails if we pass it an empty string
1057             dir = _T('.');
1058         }
1059     }
1060 #else // !Windows
1061
1062     if ( dir.empty() )
1063     {
1064         // default
1065 #if defined(__DOS__) || defined(__OS2__)
1066         dir = _T(".");
1067 #elif defined(__WXMAC__)
1068         dir = wxMacFindFolder(short(kOnSystemDisk), kTemporaryFolderType, kCreateFolder);
1069 #else
1070         dir = _T("/tmp");
1071 #endif
1072     }
1073 #endif
1074
1075     return dir;
1076 }
1077
1078 bool wxFileName::Mkdir( int perm, int flags )
1079 {
1080     return wxFileName::Mkdir(GetPath(), perm, flags);
1081 }
1082
1083 bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
1084 {
1085     if ( flags & wxPATH_MKDIR_FULL )
1086     {
1087         // split the path in components
1088         wxFileName filename;
1089         filename.AssignDir(dir);
1090
1091         wxString currPath;
1092         if ( filename.HasVolume())
1093         {
1094             currPath << wxGetVolumeString(filename.GetVolume(), wxPATH_NATIVE);
1095         }
1096
1097         wxArrayString dirs = filename.GetDirs();
1098         size_t count = dirs.GetCount();
1099         for ( size_t i = 0; i < count; i++ )
1100         {
1101             if ( i > 0 ||
1102 #if defined(__WXMAC__) && !defined(__DARWIN__)
1103             // relative pathnames are exactely the other way round under mac...
1104                 !filename.IsAbsolute()
1105 #else
1106                 filename.IsAbsolute()
1107 #endif
1108             )
1109                 currPath += wxFILE_SEP_PATH;
1110             currPath += dirs[i];
1111
1112             if (!DirExists(currPath))
1113             {
1114                 if (!wxMkdir(currPath, perm))
1115                 {
1116                     // no need to try creating further directories
1117                     return false;
1118                 }
1119             }
1120         }
1121
1122         return true;
1123
1124     }
1125
1126     return ::wxMkdir( dir, perm );
1127 }
1128
1129 bool wxFileName::Rmdir()
1130 {
1131     return wxFileName::Rmdir( GetPath() );
1132 }
1133
1134 bool wxFileName::Rmdir( const wxString &dir )
1135 {
1136     return ::wxRmdir( dir );
1137 }
1138
1139 // ----------------------------------------------------------------------------
1140 // path normalization
1141 // ----------------------------------------------------------------------------
1142
1143 bool wxFileName::Normalize(int flags,
1144                            const wxString& cwd,
1145                            wxPathFormat format)
1146 {
1147     // deal with env vars renaming first as this may seriously change the path
1148     if ( flags & wxPATH_NORM_ENV_VARS )
1149     {
1150         wxString pathOrig = GetFullPath(format);
1151         wxString path = wxExpandEnvVars(pathOrig);
1152         if ( path != pathOrig )
1153         {
1154             Assign(path);
1155         }
1156     }
1157
1158
1159     // the existing path components
1160     wxArrayString dirs = GetDirs();
1161
1162     // the path to prepend in front to make the path absolute
1163     wxFileName curDir;
1164
1165     format = GetFormat(format);
1166
1167     // set up the directory to use for making the path absolute later
1168     if ( (flags & wxPATH_NORM_ABSOLUTE) && !IsAbsolute(format) )
1169     {
1170         if ( cwd.empty() )
1171         {
1172             curDir.AssignCwd(GetVolume());
1173         }
1174         else // cwd provided
1175         {
1176             curDir.AssignDir(cwd);
1177         }
1178     }
1179
1180     // handle ~ stuff under Unix only
1181     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
1182     {
1183         if ( !dirs.IsEmpty() )
1184         {
1185             wxString dir = dirs[0u];
1186             if ( !dir.empty() && dir[0u] == _T('~') )
1187             {
1188                 // to make the path absolute use the home directory
1189                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
1190
1191                 // if we are expanding the tilde, then this path
1192                 // *should* be already relative (since we checked for
1193                 // the tilde only in the first char of the first dir);
1194                 // if m_relative==false, it's because it was initialized
1195                 // from a string which started with /~; in that case
1196                 // we reach this point but then need m_relative=true
1197                 // for relative->absolute expansion later
1198                 m_relative = true;
1199
1200                 dirs.RemoveAt(0u);
1201             }
1202         }
1203     }
1204
1205     // transform relative path into abs one
1206     if ( curDir.IsOk() )
1207     {
1208         // this path may be relative because it doesn't have the volume name
1209         // and still have m_relative=true; in this case we shouldn't modify
1210         // our directory components but just set the current volume
1211         if ( !HasVolume() && curDir.HasVolume() )
1212         {
1213             SetVolume(curDir.GetVolume());
1214
1215             if ( !m_relative )
1216         {
1217                 // yes, it was the case - we don't need curDir then
1218                 curDir.Clear();
1219             }
1220         }
1221
1222         // finally, prepend curDir to the dirs array
1223         wxArrayString dirsNew = curDir.GetDirs();
1224         WX_PREPEND_ARRAY(dirs, dirsNew);
1225
1226         // if we used e.g. tilde expansion previously and wxGetUserHome didn't
1227         // return for some reason an absolute path, then curDir maybe not be absolute!
1228         if ( curDir.IsAbsolute(format) )
1229         {
1230             // we have prepended an absolute path and thus we are now an absolute
1231             // file name too
1232             m_relative = false;
1233         }
1234         // else if (flags & wxPATH_NORM_ABSOLUTE):
1235         //   should we warn the user that we didn't manage to make the path absolute?
1236     }
1237
1238     // now deal with ".", ".." and the rest
1239     m_dirs.Empty();
1240     size_t count = dirs.GetCount();
1241     for ( size_t n = 0; n < count; n++ )
1242     {
1243         wxString dir = dirs[n];
1244
1245         if ( flags & wxPATH_NORM_DOTS )
1246         {
1247             if ( dir == wxT(".") )
1248             {
1249                 // just ignore
1250                 continue;
1251             }
1252
1253             if ( dir == wxT("..") )
1254             {
1255                 if ( m_dirs.IsEmpty() )
1256                 {
1257                     wxLogError(_("The path '%s' contains too many \"..\"!"),
1258                                GetFullPath().c_str());
1259                     return false;
1260                 }
1261
1262                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
1263                 continue;
1264             }
1265         }
1266
1267         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
1268         {
1269             dir.MakeLower();
1270         }
1271
1272         m_dirs.Add(dir);
1273     }
1274
1275 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
1276     if ( (flags & wxPATH_NORM_SHORTCUT) )
1277     {
1278         wxString filename;
1279         if (GetShortcutTarget(GetFullPath(format), filename))
1280         {
1281             // Repeat this since we may now have a new path
1282             if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
1283             {
1284                 filename.MakeLower();
1285             }
1286             m_relative = false;
1287             Assign(filename);
1288         }
1289     }
1290 #endif
1291
1292     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
1293     {
1294         // VZ: expand env vars here too?
1295
1296         m_volume.MakeLower();
1297         m_name.MakeLower();
1298         m_ext.MakeLower();
1299     }
1300
1301 #if defined(__WIN32__)
1302     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
1303     {
1304         Assign(GetLongPath());
1305     }
1306 #endif // Win32
1307
1308     return true;
1309 }
1310
1311 // ----------------------------------------------------------------------------
1312 // get the shortcut target
1313 // ----------------------------------------------------------------------------
1314
1315 // WinCE (3) doesn't have CLSID_ShellLink, IID_IShellLink definitions.
1316 // The .lnk file is a plain text file so it should be easy to
1317 // make it work. Hint from Google Groups:
1318 // "If you open up a lnk file, you'll see a
1319 // number, followed by a pound sign (#), followed by more text. The
1320 // number is the number of characters that follows the pound sign. The
1321 // characters after the pound sign are the command line (which _can_
1322 // include arguments) to be executed. Any path (e.g. \windows\program
1323 // files\myapp.exe) that includes spaces needs to be enclosed in
1324 // quotation marks."
1325
1326 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
1327 // The following lines are necessary under WinCE
1328 // #include "wx/msw/private.h"
1329 // #include <ole2.h>
1330 #include <shlobj.h>
1331 #if defined(__WXWINCE__)
1332 #include <shlguid.h>
1333 #endif
1334
1335 bool wxFileName::GetShortcutTarget(const wxString& shortcutPath,
1336                                    wxString& targetFilename,
1337                                    wxString* arguments)
1338 {
1339     wxString path, file, ext;
1340     wxSplitPath(shortcutPath, & path, & file, & ext);
1341
1342     HRESULT hres;
1343     IShellLink* psl;
1344     bool success = false;
1345
1346     // Assume it's not a shortcut if it doesn't end with lnk
1347     if (ext.CmpNoCase(wxT("lnk"))!=0)
1348         return false;
1349
1350     // create a ShellLink object
1351     hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
1352                             IID_IShellLink, (LPVOID*) &psl);
1353
1354     if (SUCCEEDED(hres))
1355     {
1356         IPersistFile* ppf;
1357         hres = psl->QueryInterface( IID_IPersistFile, (LPVOID *) &ppf);
1358         if (SUCCEEDED(hres))
1359         {
1360             WCHAR wsz[MAX_PATH];
1361
1362             MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, shortcutPath.mb_str(), -1, wsz,
1363                                 MAX_PATH);
1364
1365             hres = ppf->Load(wsz, 0);
1366             ppf->Release();
1367
1368             if (SUCCEEDED(hres))
1369             {
1370                 wxChar buf[2048];
1371                 // Wrong prototype in early versions
1372 #if defined(__MINGW32__) && !wxCHECK_W32API_VERSION(2, 2)
1373                 psl->GetPath((CHAR*) buf, 2048, NULL, SLGP_UNCPRIORITY);
1374 #else
1375                 psl->GetPath(buf, 2048, NULL, SLGP_UNCPRIORITY);
1376 #endif
1377                 targetFilename = wxString(buf);
1378                 success = (shortcutPath != targetFilename);
1379
1380                 psl->GetArguments(buf, 2048);
1381                 wxString args(buf);
1382                 if (!args.empty() && arguments)
1383                 {
1384                     *arguments = args;
1385                 }
1386             }
1387         }
1388
1389         psl->Release();
1390     }
1391     return success;
1392 }
1393
1394 #endif // __WIN32__ && !__WXWINCE__
1395
1396
1397 // ----------------------------------------------------------------------------
1398 // absolute/relative paths
1399 // ----------------------------------------------------------------------------
1400
1401 bool wxFileName::IsAbsolute(wxPathFormat format) const
1402 {
1403     // if our path doesn't start with a path separator, it's not an absolute
1404     // path
1405     if ( m_relative )
1406         return false;
1407
1408     if ( !GetVolumeSeparator(format).empty() )
1409     {
1410         // this format has volumes and an absolute path must have one, it's not
1411         // enough to have the full path to bean absolute file under Windows
1412         if ( GetVolume().empty() )
1413             return false;
1414     }
1415
1416     return true;
1417 }
1418
1419 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
1420 {
1421     wxFileName fnBase = wxFileName::DirName(pathBase, format);
1422
1423     // get cwd only once - small time saving
1424     wxString cwd = wxGetCwd();
1425     Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1426     fnBase.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1427
1428     bool withCase = IsCaseSensitive(format);
1429
1430     // we can't do anything if the files live on different volumes
1431     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
1432     {
1433         // nothing done
1434         return false;
1435     }
1436
1437     // same drive, so we don't need our volume
1438     m_volume.clear();
1439
1440     // remove common directories starting at the top
1441     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
1442                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
1443     {
1444         m_dirs.RemoveAt(0);
1445         fnBase.m_dirs.RemoveAt(0);
1446     }
1447
1448     // add as many ".." as needed
1449     size_t count = fnBase.m_dirs.GetCount();
1450     for ( size_t i = 0; i < count; i++ )
1451     {
1452         m_dirs.Insert(wxT(".."), 0u);
1453     }
1454
1455     if ( format == wxPATH_UNIX || format == wxPATH_DOS )
1456     {
1457         // a directory made relative with respect to itself is '.' under Unix
1458         // and DOS, by definition (but we don't have to insert "./" for the
1459         // files)
1460         if ( m_dirs.IsEmpty() && IsDir() )
1461         {
1462             m_dirs.Add(_T('.'));
1463         }
1464     }
1465
1466     m_relative = true;
1467
1468     // we were modified
1469     return true;
1470 }
1471
1472 // ----------------------------------------------------------------------------
1473 // filename kind tests
1474 // ----------------------------------------------------------------------------
1475
1476 bool wxFileName::SameAs(const wxFileName& filepath, wxPathFormat format) const
1477 {
1478     wxFileName fn1 = *this,
1479                fn2 = filepath;
1480
1481     // get cwd only once - small time saving
1482     wxString cwd = wxGetCwd();
1483     fn1.Normalize(wxPATH_NORM_ALL | wxPATH_NORM_CASE, cwd, format);
1484     fn2.Normalize(wxPATH_NORM_ALL | wxPATH_NORM_CASE, cwd, format);
1485
1486     if ( fn1.GetFullPath() == fn2.GetFullPath() )
1487         return true;
1488
1489     // TODO: compare inodes for Unix, this works even when filenames are
1490     //       different but files are the same (symlinks) (VZ)
1491
1492     return false;
1493 }
1494
1495 /* static */
1496 bool wxFileName::IsCaseSensitive( wxPathFormat format )
1497 {
1498     // only Unix filenames are truely case-sensitive
1499     return GetFormat(format) == wxPATH_UNIX;
1500 }
1501
1502 /* static */
1503 wxString wxFileName::GetForbiddenChars(wxPathFormat format)
1504 {
1505     // Inits to forbidden characters that are common to (almost) all platforms.
1506     wxString strForbiddenChars = wxT("*?");
1507
1508     // If asserts, wxPathFormat has been changed. In case of a new path format
1509     // addition, the following code might have to be updated.
1510     wxCOMPILE_TIME_ASSERT(wxPATH_MAX == 5, wxPathFormatChanged);
1511     switch ( GetFormat(format) )
1512     {
1513         default :
1514             wxFAIL_MSG( wxT("Unknown path format") );
1515             // !! Fall through !!
1516
1517         case wxPATH_UNIX:
1518             break;
1519
1520         case wxPATH_MAC:
1521             // On a Mac even names with * and ? are allowed (Tested with OS
1522             // 9.2.1 and OS X 10.2.5)
1523             strForbiddenChars = wxEmptyString;
1524             break;
1525
1526         case wxPATH_DOS:
1527             strForbiddenChars += wxT("\\/:\"<>|");
1528             break;
1529
1530         case wxPATH_VMS:
1531             break;
1532     }
1533
1534     return strForbiddenChars;
1535 }
1536
1537 /* static */
1538 wxString wxFileName::GetVolumeSeparator(wxPathFormat WXUNUSED_IN_WINCE(format))
1539 {
1540 #ifdef __WXWINCE__
1541     return wxEmptyString;
1542 #else
1543     wxString sepVol;
1544
1545     if ( (GetFormat(format) == wxPATH_DOS) ||
1546          (GetFormat(format) == wxPATH_VMS) )
1547     {
1548         sepVol = wxFILE_SEP_DSK;
1549     }
1550     //else: leave empty
1551
1552     return sepVol;
1553 #endif
1554 }
1555
1556 /* static */
1557 wxString wxFileName::GetPathSeparators(wxPathFormat format)
1558 {
1559     wxString seps;
1560     switch ( GetFormat(format) )
1561     {
1562         case wxPATH_DOS:
1563             // accept both as native APIs do but put the native one first as
1564             // this is the one we use in GetFullPath()
1565             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
1566             break;
1567
1568         default:
1569             wxFAIL_MSG( _T("Unknown wxPATH_XXX style") );
1570             // fall through
1571
1572         case wxPATH_UNIX:
1573             seps = wxFILE_SEP_PATH_UNIX;
1574             break;
1575
1576         case wxPATH_MAC:
1577             seps = wxFILE_SEP_PATH_MAC;
1578             break;
1579
1580         case wxPATH_VMS:
1581             seps = wxFILE_SEP_PATH_VMS;
1582             break;
1583     }
1584
1585     return seps;
1586 }
1587
1588 /* static */
1589 wxString wxFileName::GetPathTerminators(wxPathFormat format)
1590 {
1591     format = GetFormat(format);
1592
1593     // under VMS the end of the path is ']', not the path separator used to
1594     // separate the components
1595     return format == wxPATH_VMS ? wxString(_T(']')) : GetPathSeparators(format);
1596 }
1597
1598 /* static */
1599 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
1600 {
1601     // wxString::Find() doesn't work as expected with NUL - it will always find
1602     // it, so test for it separately
1603     return ch != _T('\0') && GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
1604 }
1605
1606 // ----------------------------------------------------------------------------
1607 // path components manipulation
1608 // ----------------------------------------------------------------------------
1609
1610 /* static */ bool wxFileName::IsValidDirComponent(const wxString& dir)
1611 {
1612     if ( dir.empty() )
1613     {
1614         wxFAIL_MSG( _T("empty directory passed to wxFileName::InsertDir()") );
1615
1616         return false;
1617     }
1618
1619     const size_t len = dir.length();
1620     for ( size_t n = 0; n < len; n++ )
1621     {
1622         if ( dir[n] == GetVolumeSeparator() || IsPathSeparator(dir[n]) )
1623         {
1624             wxFAIL_MSG( _T("invalid directory component in wxFileName") );
1625
1626             return false;
1627         }
1628     }
1629
1630     return true;
1631 }
1632
1633 void wxFileName::AppendDir( const wxString& dir )
1634 {
1635     if ( IsValidDirComponent(dir) )
1636         m_dirs.Add( dir );
1637 }
1638
1639 void wxFileName::PrependDir( const wxString& dir )
1640 {
1641     InsertDir(0, dir);
1642 }
1643
1644 void wxFileName::InsertDir(size_t before, const wxString& dir)
1645 {
1646     if ( IsValidDirComponent(dir) )
1647         m_dirs.Insert(dir, before);
1648 }
1649
1650 void wxFileName::RemoveDir(size_t pos)
1651 {
1652     m_dirs.RemoveAt(pos);
1653 }
1654
1655 // ----------------------------------------------------------------------------
1656 // accessors
1657 // ----------------------------------------------------------------------------
1658
1659 void wxFileName::SetFullName(const wxString& fullname)
1660 {
1661     SplitPath(fullname, NULL /* no volume */, NULL /* no path */,
1662                         &m_name, &m_ext, &m_hasExt);
1663 }
1664
1665 wxString wxFileName::GetFullName() const
1666 {
1667     wxString fullname = m_name;
1668     if ( m_hasExt )
1669     {
1670         fullname << wxFILE_SEP_EXT << m_ext;
1671     }
1672
1673     return fullname;
1674 }
1675
1676 wxString wxFileName::GetPath( int flags, wxPathFormat format ) const
1677 {
1678     format = GetFormat( format );
1679
1680     wxString fullpath;
1681
1682     // return the volume with the path as well if requested
1683     if ( flags & wxPATH_GET_VOLUME )
1684     {
1685         fullpath += wxGetVolumeString(GetVolume(), format);
1686     }
1687
1688     // the leading character
1689     switch ( format )
1690     {
1691         case wxPATH_MAC:
1692             if ( m_relative )
1693                 fullpath += wxFILE_SEP_PATH_MAC;
1694             break;
1695
1696         case wxPATH_DOS:
1697             if ( !m_relative )
1698                 fullpath += wxFILE_SEP_PATH_DOS;
1699             break;
1700
1701         default:
1702             wxFAIL_MSG( wxT("Unknown path format") );
1703             // fall through
1704
1705         case wxPATH_UNIX:
1706             if ( !m_relative )
1707             {
1708                 // normally the absolute file names start with a slash
1709                 // with one exception: the ones like "~/foo.bar" don't
1710                 // have it
1711                 if ( m_dirs.IsEmpty() || m_dirs[0u] != _T('~') )
1712                 {
1713                     fullpath += wxFILE_SEP_PATH_UNIX;
1714                 }
1715             }
1716             break;
1717
1718         case wxPATH_VMS:
1719             // no leading character here but use this place to unset
1720             // wxPATH_GET_SEPARATOR flag: under VMS it doesn't make sense
1721             // as, if I understand correctly, there should never be a dot
1722             // before the closing bracket
1723             flags &= ~wxPATH_GET_SEPARATOR;
1724     }
1725
1726     if ( m_dirs.empty() )
1727     {
1728         // there is nothing more
1729         return fullpath;
1730     }
1731
1732     // then concatenate all the path components using the path separator
1733     if ( format == wxPATH_VMS )
1734     {
1735         fullpath += wxT('[');
1736     }
1737
1738     const size_t dirCount = m_dirs.GetCount();
1739     for ( size_t i = 0; i < dirCount; i++ )
1740     {
1741         switch (format)
1742         {
1743             case wxPATH_MAC:
1744                 if ( m_dirs[i] == wxT(".") )
1745                 {
1746                     // skip appending ':', this shouldn't be done in this
1747                     // case as "::" is interpreted as ".." under Unix
1748                     continue;
1749                 }
1750
1751                 // convert back from ".." to nothing
1752                 if ( !m_dirs[i].IsSameAs(wxT("..")) )
1753                      fullpath += m_dirs[i];
1754                 break;
1755
1756             default:
1757                 wxFAIL_MSG( wxT("Unexpected path format") );
1758                 // still fall through
1759
1760             case wxPATH_DOS:
1761             case wxPATH_UNIX:
1762                 fullpath += m_dirs[i];
1763                 break;
1764
1765             case wxPATH_VMS:
1766                 // TODO: What to do with ".." under VMS
1767
1768                 // convert back from ".." to nothing
1769                 if ( !m_dirs[i].IsSameAs(wxT("..")) )
1770                     fullpath += m_dirs[i];
1771                 break;
1772         }
1773
1774         if ( (flags & wxPATH_GET_SEPARATOR) || (i != dirCount - 1) )
1775             fullpath += GetPathSeparator(format);
1776     }
1777
1778     if ( format == wxPATH_VMS )
1779     {
1780         fullpath += wxT(']');
1781     }
1782
1783     return fullpath;
1784 }
1785
1786 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1787 {
1788     // we already have a function to get the path
1789     wxString fullpath = GetPath(wxPATH_GET_VOLUME | wxPATH_GET_SEPARATOR,
1790                                 format);
1791
1792     // now just add the file name and extension to it
1793     fullpath += GetFullName();
1794
1795     return fullpath;
1796 }
1797
1798 // Return the short form of the path (returns identity on non-Windows platforms)
1799 wxString wxFileName::GetShortPath() const
1800 {
1801     wxString path(GetFullPath());
1802
1803 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
1804     DWORD sz = ::GetShortPathName(path, NULL, 0);
1805     if ( sz != 0 )
1806     {
1807         wxString pathOut;
1808         if ( ::GetShortPathName
1809                (
1810                 path,
1811                 wxStringBuffer(pathOut, sz),
1812                 sz
1813                ) != 0 )
1814         {
1815             return pathOut;
1816         }
1817     }
1818 #endif // Windows
1819
1820     return path;
1821 }
1822
1823 // Return the long form of the path (returns identity on non-Windows platforms)
1824 wxString wxFileName::GetLongPath() const
1825 {
1826     wxString pathOut,
1827              path = GetFullPath();
1828
1829 #if defined(__WIN32__) && !defined(__WXWINCE__) && !defined(__WXMICROWIN__)
1830
1831 #if wxUSE_DYNAMIC_LOADER
1832     typedef DWORD (WINAPI *GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1833
1834     // this is MT-safe as in the worst case we're going to resolve the function
1835     // twice -- but as the result is the same in both threads, it's ok
1836     static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1837     if ( !s_pfnGetLongPathName )
1838     {
1839         static bool s_triedToLoad = false;
1840
1841         if ( !s_triedToLoad )
1842         {
1843             s_triedToLoad = true;
1844
1845             wxDynamicLibrary dllKernel(_T("kernel32"));
1846
1847             const wxChar* GetLongPathName = _T("GetLongPathName")
1848 #if wxUSE_UNICODE
1849                               _T("W");
1850 #else // ANSI
1851                               _T("A");
1852 #endif // Unicode/ANSI
1853
1854             if ( dllKernel.HasSymbol(GetLongPathName) )
1855             {
1856                 s_pfnGetLongPathName = (GET_LONG_PATH_NAME)
1857                     dllKernel.GetSymbol(GetLongPathName);
1858             }
1859
1860             // note that kernel32.dll can be unloaded, it stays in memory
1861             // anyhow as all Win32 programs link to it and so it's safe to call
1862             // GetLongPathName() even after unloading it
1863         }
1864     }
1865
1866     if ( s_pfnGetLongPathName )
1867     {
1868         DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
1869         if ( dwSize > 0 )
1870         {
1871             if ( (*s_pfnGetLongPathName)
1872                  (
1873                   path,
1874                   wxStringBuffer(pathOut, dwSize),
1875                   dwSize
1876                  ) != 0 )
1877             {
1878                 return pathOut;
1879             }
1880         }
1881     }
1882 #endif // wxUSE_DYNAMIC_LOADER
1883
1884     // The OS didn't support GetLongPathName, or some other error.
1885     // We need to call FindFirstFile on each component in turn.
1886
1887     WIN32_FIND_DATA findFileData;
1888     HANDLE hFind;
1889
1890     if ( HasVolume() )
1891         pathOut = GetVolume() +
1892                   GetVolumeSeparator(wxPATH_DOS) +
1893                   GetPathSeparator(wxPATH_DOS);
1894     else
1895         pathOut = wxEmptyString;
1896
1897     wxArrayString dirs = GetDirs();
1898     dirs.Add(GetFullName());
1899
1900     wxString tmpPath;
1901
1902     size_t count = dirs.GetCount();
1903     for ( size_t i = 0; i < count; i++ )
1904     {
1905         // We're using pathOut to collect the long-name path, but using a
1906         // temporary for appending the last path component which may be
1907         // short-name
1908         tmpPath = pathOut + dirs[i];
1909
1910         if ( tmpPath.empty() )
1911             continue;
1912
1913         // can't see this being necessary? MF
1914         if ( tmpPath.Last() == GetVolumeSeparator(wxPATH_DOS) )
1915         {
1916             // Can't pass a drive and root dir to FindFirstFile,
1917             // so continue to next dir
1918             tmpPath += wxFILE_SEP_PATH;
1919             pathOut = tmpPath;
1920             continue;
1921         }
1922
1923         hFind = ::FindFirstFile(tmpPath, &findFileData);
1924         if (hFind == INVALID_HANDLE_VALUE)
1925         {
1926             // Error: most likely reason is that path doesn't exist, so
1927             // append any unprocessed parts and return
1928             for ( i += 1; i < count; i++ )
1929                 tmpPath += wxFILE_SEP_PATH + dirs[i];
1930
1931             return tmpPath;
1932         }
1933
1934         pathOut += findFileData.cFileName;
1935         if ( (i < (count-1)) )
1936             pathOut += wxFILE_SEP_PATH;
1937
1938         ::FindClose(hFind);
1939     }
1940 #else // !Win32
1941     pathOut = path;
1942 #endif // Win32/!Win32
1943
1944     return pathOut;
1945 }
1946
1947 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1948 {
1949     if (format == wxPATH_NATIVE)
1950     {
1951 #if defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__)
1952         format = wxPATH_DOS;
1953 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1954         format = wxPATH_MAC;
1955 #elif defined(__VMS)
1956         format = wxPATH_VMS;
1957 #else
1958         format = wxPATH_UNIX;
1959 #endif
1960     }
1961     return format;
1962 }
1963
1964 // ----------------------------------------------------------------------------
1965 // path splitting function
1966 // ----------------------------------------------------------------------------
1967
1968 /* static */
1969 void
1970 wxFileName::SplitVolume(const wxString& fullpathWithVolume,
1971                         wxString *pstrVolume,
1972                         wxString *pstrPath,
1973                         wxPathFormat format)
1974 {
1975     format = GetFormat(format);
1976
1977     wxString fullpath = fullpathWithVolume;
1978
1979     // special Windows UNC paths hack: transform \\share\path into share:path
1980     if ( IsUNCPath(fullpath, format) )
1981     {
1982         fullpath.erase(0, 2);
1983
1984         size_t posFirstSlash =
1985             fullpath.find_first_of(GetPathTerminators(format));
1986         if ( posFirstSlash != wxString::npos )
1987         {
1988             fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1989
1990             // UNC paths are always absolute, right? (FIXME)
1991             fullpath.insert(posFirstSlash + 1, 1, wxFILE_SEP_PATH_DOS);
1992         }
1993     }
1994
1995     // We separate the volume here
1996     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1997     {
1998         wxString sepVol = GetVolumeSeparator(format);
1999
2000         size_t posFirstColon = fullpath.find_first_of(sepVol);
2001         if ( posFirstColon != wxString::npos )
2002         {
2003             if ( pstrVolume )
2004             {
2005                 *pstrVolume = fullpath.Left(posFirstColon);
2006             }
2007
2008             // remove the volume name and the separator from the full path
2009             fullpath.erase(0, posFirstColon + sepVol.length());
2010         }
2011     }
2012
2013     if ( pstrPath )
2014         *pstrPath = fullpath;
2015 }
2016
2017 /* static */
2018 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
2019                            wxString *pstrVolume,
2020                            wxString *pstrPath,
2021                            wxString *pstrName,
2022                            wxString *pstrExt,
2023                            bool *hasExt,
2024                            wxPathFormat format)
2025 {
2026     format = GetFormat(format);
2027
2028     wxString fullpath;
2029     SplitVolume(fullpathWithVolume, pstrVolume, &fullpath, format);
2030
2031     // find the positions of the last dot and last path separator in the path
2032     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
2033     size_t posLastSlash = fullpath.find_last_of(GetPathTerminators(format));
2034
2035     // check whether this dot occurs at the very beginning of a path component
2036     if ( (posLastDot != wxString::npos) &&
2037          (posLastDot == 0 ||
2038             IsPathSeparator(fullpath[posLastDot - 1]) ||
2039             (format == wxPATH_VMS && fullpath[posLastDot - 1] == _T(']'))) )
2040     {
2041         // dot may be (and commonly -- at least under Unix -- is) the first
2042         // character of the filename, don't treat the entire filename as
2043         // extension in this case
2044         posLastDot = wxString::npos;
2045     }
2046
2047     // if we do have a dot and a slash, check that the dot is in the name part
2048     if ( (posLastDot != wxString::npos) &&
2049          (posLastSlash != wxString::npos) &&
2050          (posLastDot < posLastSlash) )
2051     {
2052         // the dot is part of the path, not the start of the extension
2053         posLastDot = wxString::npos;
2054     }
2055
2056     // now fill in the variables provided by user
2057     if ( pstrPath )
2058     {
2059         if ( posLastSlash == wxString::npos )
2060         {
2061             // no path at all
2062             pstrPath->Empty();
2063         }
2064         else
2065         {
2066             // take everything up to the path separator but take care to make
2067             // the path equal to something like '/', not empty, for the files
2068             // immediately under root directory
2069             size_t len = posLastSlash;
2070
2071             // this rule does not apply to mac since we do not start with colons (sep)
2072             // except for relative paths
2073             if ( !len && format != wxPATH_MAC)
2074                 len++;
2075
2076             *pstrPath = fullpath.Left(len);
2077
2078             // special VMS hack: remove the initial bracket
2079             if ( format == wxPATH_VMS )
2080             {
2081                 if ( (*pstrPath)[0u] == _T('[') )
2082                     pstrPath->erase(0, 1);
2083             }
2084         }
2085     }
2086
2087     if ( pstrName )
2088     {
2089         // take all characters starting from the one after the last slash and
2090         // up to, but excluding, the last dot
2091         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
2092         size_t count;
2093         if ( posLastDot == wxString::npos )
2094         {
2095             // take all until the end
2096             count = wxString::npos;
2097         }
2098         else if ( posLastSlash == wxString::npos )
2099         {
2100             count = posLastDot;
2101         }
2102         else // have both dot and slash
2103         {
2104             count = posLastDot - posLastSlash - 1;
2105         }
2106
2107         *pstrName = fullpath.Mid(nStart, count);
2108     }
2109
2110     // finally deal with the extension here: we have an added complication that
2111     // extension may be empty (but present) as in "foo." where trailing dot
2112     // indicates the empty extension at the end -- and hence we must remember
2113     // that we have it independently of pstrExt
2114     if ( posLastDot == wxString::npos )
2115     {
2116         // no extension
2117         if ( pstrExt )
2118             pstrExt->clear();
2119         if ( hasExt )
2120             *hasExt = false;
2121     }
2122     else
2123     {
2124         // take everything after the dot
2125         if ( pstrExt )
2126             *pstrExt = fullpath.Mid(posLastDot + 1);
2127         if ( hasExt )
2128             *hasExt = true;
2129     }
2130 }
2131
2132 /* static */
2133 void wxFileName::SplitPath(const wxString& fullpath,
2134                            wxString *path,
2135                            wxString *name,
2136                            wxString *ext,
2137                            wxPathFormat format)
2138 {
2139     wxString volume;
2140     SplitPath(fullpath, &volume, path, name, ext, format);
2141
2142     if ( path )
2143     {
2144         path->Prepend(wxGetVolumeString(volume, format));
2145     }
2146 }
2147
2148 // ----------------------------------------------------------------------------
2149 // time functions
2150 // ----------------------------------------------------------------------------
2151
2152 #if wxUSE_DATETIME
2153
2154 bool wxFileName::SetTimes(const wxDateTime *dtAccess,
2155                           const wxDateTime *dtMod,
2156                           const wxDateTime *dtCreate)
2157 {
2158 #if defined(__WIN32__)
2159     if ( IsDir() )
2160     {
2161         // VZ: please let me know how to do this if you can
2162         wxFAIL_MSG( _T("SetTimes() not implemented for the directories") );
2163     }
2164     else // file
2165     {
2166         wxFileHandle fh(GetFullPath(), wxFileHandle::Write);
2167         if ( fh.IsOk() )
2168         {
2169             FILETIME ftAccess, ftCreate, ftWrite;
2170
2171             if ( dtCreate )
2172                 ConvertWxToFileTime(&ftCreate, *dtCreate);
2173             if ( dtAccess )
2174                 ConvertWxToFileTime(&ftAccess, *dtAccess);
2175             if ( dtMod )
2176                 ConvertWxToFileTime(&ftWrite, *dtMod);
2177
2178             if ( ::SetFileTime(fh,
2179                                dtCreate ? &ftCreate : NULL,
2180                                dtAccess ? &ftAccess : NULL,
2181                                dtMod ? &ftWrite : NULL) )
2182             {
2183                 return true;
2184             }
2185         }
2186     }
2187 #elif defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
2188     wxUnusedVar(dtCreate);
2189
2190     if ( !dtAccess && !dtMod )
2191     {
2192         // can't modify the creation time anyhow, don't try
2193         return true;
2194     }
2195
2196     // if dtAccess or dtMod is not specified, use the other one (which must be
2197     // non NULL because of the test above) for both times
2198     utimbuf utm;
2199     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
2200     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
2201     if ( utime(GetFullPath().fn_str(), &utm) == 0 )
2202     {
2203         return true;
2204     }
2205 #else // other platform
2206     wxUnusedVar(dtAccess);
2207     wxUnusedVar(dtMod);
2208     wxUnusedVar(dtCreate);
2209 #endif // platforms
2210
2211     wxLogSysError(_("Failed to modify file times for '%s'"),
2212                   GetFullPath().c_str());
2213
2214     return false;
2215 }
2216
2217 bool wxFileName::Touch()
2218 {
2219 #if defined(__UNIX_LIKE__)
2220     // under Unix touching file is simple: just pass NULL to utime()
2221     if ( utime(GetFullPath().fn_str(), NULL) == 0 )
2222     {
2223         return true;
2224     }
2225
2226     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
2227
2228     return false;
2229 #else // other platform
2230     wxDateTime dtNow = wxDateTime::Now();
2231
2232     return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
2233 #endif // platforms
2234 }
2235
2236 bool wxFileName::GetTimes(wxDateTime *dtAccess,
2237                           wxDateTime *dtMod,
2238                           wxDateTime *dtCreate) const
2239 {
2240 #if defined(__WIN32__)
2241     // we must use different methods for the files and directories under
2242     // Windows as CreateFile(GENERIC_READ) doesn't work for the directories and
2243     // CreateFile(FILE_FLAG_BACKUP_SEMANTICS) works -- but only under NT and
2244     // not 9x
2245     bool ok;
2246     FILETIME ftAccess, ftCreate, ftWrite;
2247     if ( IsDir() )
2248     {
2249         // implemented in msw/dir.cpp
2250         extern bool wxGetDirectoryTimes(const wxString& dirname,
2251                                         FILETIME *, FILETIME *, FILETIME *);
2252
2253         // we should pass the path without the trailing separator to
2254         // wxGetDirectoryTimes()
2255         ok = wxGetDirectoryTimes(GetPath(wxPATH_GET_VOLUME),
2256                                  &ftAccess, &ftCreate, &ftWrite);
2257     }
2258     else // file
2259     {
2260         wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
2261         if ( fh.IsOk() )
2262         {
2263             ok = ::GetFileTime(fh,
2264                                dtCreate ? &ftCreate : NULL,
2265                                dtAccess ? &ftAccess : NULL,
2266                                dtMod ? &ftWrite : NULL) != 0;
2267         }
2268         else
2269         {
2270             ok = false;
2271         }
2272     }
2273
2274     if ( ok )
2275     {
2276         if ( dtCreate )
2277             ConvertFileTimeToWx(dtCreate, ftCreate);
2278         if ( dtAccess )
2279             ConvertFileTimeToWx(dtAccess, ftAccess);
2280         if ( dtMod )
2281             ConvertFileTimeToWx(dtMod, ftWrite);
2282
2283         return true;
2284     }
2285 #elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || defined(__OS2__) || (defined(__DOS__) && defined(__WATCOMC__))
2286     // no need to test for IsDir() here
2287     wxStructStat stBuf;
2288     if ( wxStat( GetFullPath().c_str(), &stBuf) == 0 )
2289     {
2290         if ( dtAccess )
2291             dtAccess->Set(stBuf.st_atime);
2292         if ( dtMod )
2293             dtMod->Set(stBuf.st_mtime);
2294         if ( dtCreate )
2295             dtCreate->Set(stBuf.st_ctime);
2296
2297         return true;
2298     }
2299 #else // other platform
2300     wxUnusedVar(dtAccess);
2301     wxUnusedVar(dtMod);
2302     wxUnusedVar(dtCreate);
2303 #endif // platforms
2304
2305     wxLogSysError(_("Failed to retrieve file times for '%s'"),
2306                   GetFullPath().c_str());
2307
2308     return false;
2309 }
2310
2311 #endif // wxUSE_DATETIME
2312
2313
2314 // ----------------------------------------------------------------------------
2315 // file size functions
2316 // ----------------------------------------------------------------------------
2317
2318 /* static */
2319 wxULongLong wxFileName::GetSize(const wxString &filename)
2320 {
2321     if (!wxFileExists(filename))
2322         return wxInvalidSize;
2323
2324 #if defined(__WXPALMOS__)
2325     // TODO
2326     return wxInvalidSize;
2327 #elif defined(__WIN32__)
2328     wxFileHandle f(filename, wxFileHandle::Read);
2329     if (!f.IsOk())
2330         return wxInvalidSize;
2331
2332     DWORD lpFileSizeHigh;
2333     DWORD ret = GetFileSize(f, &lpFileSizeHigh);
2334     if (ret == INVALID_FILE_SIZE)
2335         return wxInvalidSize;
2336
2337     // compose the low-order and high-order byte sizes
2338     return wxULongLong(ret | (lpFileSizeHigh << sizeof(WORD)*2));
2339
2340 #else           // ! __WIN32__
2341
2342     wxStructStat st;
2343 #ifndef wxNEED_WX_UNISTD_H
2344     if (wxStat( filename.fn_str() , &st) != 0)
2345 #else
2346     if (wxStat( filename, &st) != 0)
2347 #endif
2348         return wxInvalidSize;
2349     return wxULongLong(st.st_size);
2350 #endif
2351 }
2352
2353 /* static */
2354 wxString wxFileName::GetHumanReadableSize(const wxULongLong &bs,
2355                                           const wxString &nullsize,
2356                                           int precision)
2357 {
2358     static const double KILOBYTESIZE = 1024.0;
2359     static const double MEGABYTESIZE = 1024.0*KILOBYTESIZE;
2360     static const double GIGABYTESIZE = 1024.0*MEGABYTESIZE;
2361     static const double TERABYTESIZE = 1024.0*GIGABYTESIZE;
2362
2363     if (bs == 0 || bs == wxInvalidSize)
2364         return nullsize;
2365
2366     double bytesize = bs.ToDouble();
2367     if (bytesize < KILOBYTESIZE)
2368         return wxString::Format(_("%s B"), bs.ToString().c_str());
2369     if (bytesize < MEGABYTESIZE)
2370         return wxString::Format(_("%.*f kB"), precision, bytesize/KILOBYTESIZE);
2371     if (bytesize < GIGABYTESIZE)
2372         return wxString::Format(_("%.*f MB"), precision, bytesize/MEGABYTESIZE);
2373     if (bytesize < TERABYTESIZE)
2374         return wxString::Format(_("%.*f GB"), precision, bytesize/GIGABYTESIZE);
2375
2376     return wxString::Format(_("%.*f TB"), precision, bytesize/TERABYTESIZE);
2377 }
2378
2379 wxULongLong wxFileName::GetSize() const
2380 {
2381     return GetSize(GetFullPath());
2382 }
2383
2384 wxString wxFileName::GetHumanReadableSize(const wxString &failmsg, int precision) const
2385 {
2386     return GetHumanReadableSize(GetSize(), failmsg, precision);
2387 }
2388
2389
2390 // ----------------------------------------------------------------------------
2391 // Mac-specific functions
2392 // ----------------------------------------------------------------------------
2393
2394 #ifdef __WXMAC__
2395
2396 const short kMacExtensionMaxLength = 16 ;
2397 class MacDefaultExtensionRecord
2398 {
2399 public :
2400   MacDefaultExtensionRecord()
2401   {
2402     m_ext[0] = 0 ;
2403     m_type = m_creator = 0 ;
2404   }
2405   MacDefaultExtensionRecord( const MacDefaultExtensionRecord& from )
2406   {
2407     wxStrcpy( m_ext , from.m_ext ) ;
2408     m_type = from.m_type ;
2409     m_creator = from.m_creator ;
2410   }
2411   MacDefaultExtensionRecord( const wxChar * extension , OSType type , OSType creator )
2412   {
2413     wxStrncpy( m_ext , extension , kMacExtensionMaxLength ) ;
2414     m_ext[kMacExtensionMaxLength] = 0 ;
2415     m_type = type ;
2416     m_creator = creator ;
2417   }
2418   wxChar m_ext[kMacExtensionMaxLength] ;
2419   OSType m_type ;
2420   OSType m_creator ;
2421 }  ;
2422
2423 WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray) ;
2424
2425 bool gMacDefaultExtensionsInited = false ;
2426
2427 #include "wx/arrimpl.cpp"
2428
2429 WX_DEFINE_EXPORTED_OBJARRAY(MacDefaultExtensionArray) ;
2430
2431 MacDefaultExtensionArray gMacDefaultExtensions ;
2432
2433 // load the default extensions
2434 MacDefaultExtensionRecord gDefaults[] =
2435 {
2436     MacDefaultExtensionRecord( wxT("txt") , 'TEXT' , 'ttxt' ) ,
2437     MacDefaultExtensionRecord( wxT("tif") , 'TIFF' , '****' ) ,
2438     MacDefaultExtensionRecord( wxT("jpg") , 'JPEG' , '****' ) ,
2439 } ;
2440
2441 static void MacEnsureDefaultExtensionsLoaded()
2442 {
2443     if ( !gMacDefaultExtensionsInited )
2444     {
2445         // we could load the pc exchange prefs here too
2446         for ( size_t i = 0 ; i < WXSIZEOF( gDefaults ) ; ++i )
2447         {
2448             gMacDefaultExtensions.Add( gDefaults[i] ) ;
2449         }
2450         gMacDefaultExtensionsInited = true ;
2451     }
2452 }
2453
2454 bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
2455 {
2456     FSRef fsRef ;
2457     FSCatalogInfo catInfo;
2458     FileInfo *finfo ;
2459
2460     if ( wxMacPathToFSRef( GetFullPath() , &fsRef ) == noErr )
2461     {
2462         if ( FSGetCatalogInfo (&fsRef, kFSCatInfoFinderInfo, &catInfo, NULL, NULL, NULL) == noErr )
2463         {
2464             finfo = (FileInfo*)&catInfo.finderInfo;
2465             finfo->fileType = type ;
2466             finfo->fileCreator = creator ;
2467             FSSetCatalogInfo( &fsRef, kFSCatInfoFinderInfo, &catInfo ) ;
2468             return true ;
2469         }
2470     }
2471     return false ;
2472 }
2473
2474 bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator )
2475 {
2476     FSRef fsRef ;
2477     FSCatalogInfo catInfo;
2478     FileInfo *finfo ;
2479
2480     if ( wxMacPathToFSRef( GetFullPath() , &fsRef ) == noErr )
2481     {
2482         if ( FSGetCatalogInfo (&fsRef, kFSCatInfoFinderInfo, &catInfo, NULL, NULL, NULL) == noErr )
2483         {
2484             finfo = (FileInfo*)&catInfo.finderInfo;
2485             *type = finfo->fileType ;
2486             *creator = finfo->fileCreator ;
2487             return true ;
2488         }
2489     }
2490     return false ;
2491 }
2492
2493 bool wxFileName::MacSetDefaultTypeAndCreator()
2494 {
2495     wxUint32 type , creator ;
2496     if ( wxFileName::MacFindDefaultTypeAndCreator(GetExt() , &type ,
2497       &creator ) )
2498     {
2499         return MacSetTypeAndCreator( type , creator ) ;
2500     }
2501     return false;
2502 }
2503
2504 bool wxFileName::MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator )
2505 {
2506   MacEnsureDefaultExtensionsLoaded() ;
2507   wxString extl = ext.Lower() ;
2508   for( int i = gMacDefaultExtensions.Count() - 1 ; i >= 0 ; --i )
2509   {
2510     if ( gMacDefaultExtensions.Item(i).m_ext == extl )
2511     {
2512       *type = gMacDefaultExtensions.Item(i).m_type ;
2513       *creator = gMacDefaultExtensions.Item(i).m_creator ;
2514       return true ;
2515     }
2516   }
2517   return false ;
2518 }
2519
2520 void wxFileName::MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator )
2521 {
2522   MacEnsureDefaultExtensionsLoaded() ;
2523   MacDefaultExtensionRecord rec ;
2524   rec.m_type = type ;
2525   rec.m_creator = creator ;
2526   wxStrncpy( rec.m_ext , ext.Lower().c_str() , kMacExtensionMaxLength ) ;
2527   gMacDefaultExtensions.Add( rec ) ;
2528 }
2529 #endif