src/common/filename.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/filename.cpp
   3 // Purpose:     wxFileName - encapsulates a file path
   4 // Author:      Robert Roebling, Vadim Zeitlin
   5 // Modified by:
   6 // Created:     28.12.2000
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2000 Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 /*
  13    Here are brief descriptions of the filename formats supported by this class:
  14
  15    wxPATH_UNIX: standard Unix format, used under Darwin as well, absolute file
  16                 names have the form:
  17                 /dir1/dir2/.../dirN/filename, "." and ".." stand for the
  18                 current and parent directory respectively, "~" is parsed as the
  19                 user HOME and "~username" as the HOME of that user
  20
  21    wxPATH_DOS:  DOS/Windows format, absolute file names have the form:
  22                 drive:\dir1\dir2\...\dirN\filename.ext where drive is a single
  23                 letter. "." and ".." as for Unix but no "~".
  24
  25                 There are also UNC names of the form \\share\fullpath
  26
  27    wxPATH_MAC:  Mac OS 8/9 and Mac OS X under CodeWarrior 7 format, absolute file
  28                 names have the form
  29                     volume:dir1:...:dirN:filename
  30                 and the relative file names are either
  31                     :dir1:...:dirN:filename
  32                 or just
  33                     filename
  34                 (although :filename works as well).
  35                 Since the volume is just part of the file path, it is not
  36                 treated like a separate entity as it is done under DOS and
  37                 VMS, it is just treated as another dir.
  38
  39    wxPATH_VMS:  VMS native format, absolute file names have the form
  40                     <device>:[dir1.dir2.dir3]file.txt
  41                 or
  42                     <device>:[000000.dir1.dir2.dir3]file.txt
  43
  44                 the <device> is the physical device (i.e. disk). 000000 is the
  45                 root directory on the device which can be omitted.
  46
  47                 Note that VMS uses different separators unlike Unix:
  48                  : always after the device. If the path does not contain : than
  49                    the default (the device of the current directory) is assumed.
  50                  [ start of directory specification
  51                  . separator between directory and subdirectory
  52                  ] between directory and file
  53  */
  54
  55 // ============================================================================
  56 // declarations
  57 // ============================================================================
  58
  59 // ----------------------------------------------------------------------------
  60 // headers
  61 // ----------------------------------------------------------------------------
  62
  63 // For compilers that support precompilation, includes "wx.h".
  64 #include "wx/wxprec.h"
  65
  66 #ifdef __BORLANDC__
  67 #pragma hdrstop
  68 #endif
  69
  70 #ifndef WX_PRECOMP
  71     #ifdef __WXMSW__
  72         #include "wx/msw/wrapwin.h" // For GetShort/LongPathName
  73     #endif
  74     #include "wx/dynarray.h"
  75     #include "wx/intl.h"
  76     #include "wx/log.h"
  77     #include "wx/utils.h"
  78     #include "wx/crt.h"
  79 #endif
  80
  81 #include "wx/filename.h"
  82 #include "wx/private/filename.h"
  83 #include "wx/tokenzr.h"
  84 #include "wx/config.h"          // for wxExpandEnvVars
  85 #include "wx/dynlib.h"
  86
  87 #if defined(__WIN32__) && defined(__MINGW32__)
  88     #include "wx/msw/gccpriv.h"
  89 #endif
  90
  91 #ifdef __WXWINCE__
  92 #include "wx/msw/private.h"
  93 #endif
  94
  95 #if defined(__WXMAC__)
  96   #include  "wx/osx/private.h"  // includes mac headers
  97 #endif
  98
  99 // utime() is POSIX so should normally be available on all Unices
 100 #ifdef __UNIX_LIKE__
 101 #include <sys/types.h>
 102 #include <utime.h>
 103 #include <sys/stat.h>
 104 #include <unistd.h>
 105 #endif
 106
 107 #ifdef __DJGPP__
 108 #include <unistd.h>
 109 #endif
 110
 111 #ifdef __MWERKS__
 112 #ifdef __MACH__
 113 #include <sys/types.h>
 114 #include <utime.h>
 115 #include <sys/stat.h>
 116 #include <unistd.h>
 117 #else
 118 #include <stat.h>
 119 #include <unistd.h>
 120 #include <unix.h>
 121 #endif
 122 #endif
 123
 124 #ifdef __WATCOMC__
 125 #include <io.h>
 126 #include <sys/utime.h>
 127 #include <sys/stat.h>
 128 #endif
 129
 130 #ifdef __VISAGECPP__
 131 #ifndef MAX_PATH
 132 #define MAX_PATH 256
 133 #endif
 134 #endif
 135
 136 #ifdef __EMX__
 137 #include <os2.h>
 138 #define MAX_PATH _MAX_PATH
 139 #endif
 140
 141
 142 #if wxUSE_LONGLONG
 143 extern const wxULongLong wxInvalidSize = (unsigned)-1;
 144 #endif // wxUSE_LONGLONG
 145
 146
 147 // ----------------------------------------------------------------------------
 148 // private classes
 149 // ----------------------------------------------------------------------------
 150
 151 // small helper class which opens and closes the file - we use it just to get
 152 // a file handle for the given file name to pass it to some Win32 API function
 153 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 154
 155 class wxFileHandle
 156 {
 157 public:
 158     enum OpenMode
 159     {
 160         Read,
 161         Write
 162     };
 163
 164     wxFileHandle(const wxString& filename, OpenMode mode, int flags = 0)
 165     {
 166         m_hFile = ::CreateFile
 167                     (
 168                      filename.fn_str(),             // name
 169                      mode == Read ? GENERIC_READ    // access mask
 170                                   : GENERIC_WRITE,
 171                      FILE_SHARE_READ |              // sharing mode
 172                      FILE_SHARE_WRITE,              // (allow everything)
 173                      NULL,                          // no secutity attr
 174                      OPEN_EXISTING,                 // creation disposition
 175                      flags,                         // flags
 176                      NULL                           // no template file
 177                     );
 178
 179         if ( m_hFile == INVALID_HANDLE_VALUE )
 180         {
 181             if ( mode == Read )
 182                 wxLogSysError(_("Failed to open '%s' for reading"),
 183                               filename.c_str());
 184             else
 185                 wxLogSysError(_("Failed to open '%s' for writing"),
 186                               filename.c_str());
 187         }
 188     }
 189
 190     ~wxFileHandle()
 191     {
 192         if ( m_hFile != INVALID_HANDLE_VALUE )
 193         {
 194             if ( !::CloseHandle(m_hFile) )
 195             {
 196                 wxLogSysError(_("Failed to close file handle"));
 197             }
 198         }
 199     }
 200
 201     // return true only if the file could be opened successfully
 202     bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
 203
 204     // get the handle
 205     operator HANDLE() const { return m_hFile; }
 206
 207 private:
 208     HANDLE m_hFile;
 209 };
 210
 211 #endif // __WIN32__
 212
 213 // ----------------------------------------------------------------------------
 214 // private functions
 215 // ----------------------------------------------------------------------------
 216
 217 #if wxUSE_DATETIME && defined(__WIN32__) && !defined(__WXMICROWIN__)
 218
 219 // convert between wxDateTime and FILETIME which is a 64-bit value representing
 220 // the number of 100-nanosecond intervals since January 1, 1601.
 221
 222 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 223 {
 224     FILETIME ftcopy = ft;
 225     FILETIME ftLocal;
 226     if ( !::FileTimeToLocalFileTime(&ftcopy, &ftLocal) )
 227     {
 228         wxLogLastError(_T("FileTimeToLocalFileTime"));
 229     }
 230
 231     SYSTEMTIME st;
 232     if ( !::FileTimeToSystemTime(&ftLocal, &st) )
 233     {
 234         wxLogLastError(_T("FileTimeToSystemTime"));
 235     }
 236
 237     dt->Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
 238             st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
 239 }
 240
 241 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 242 {
 243     SYSTEMTIME st;
 244     st.wDay = dt.GetDay();
 245     st.wMonth = (WORD)(dt.GetMonth() + 1);
 246     st.wYear = (WORD)dt.GetYear();
 247     st.wHour = dt.GetHour();
 248     st.wMinute = dt.GetMinute();
 249     st.wSecond = dt.GetSecond();
 250     st.wMilliseconds = dt.GetMillisecond();
 251
 252     FILETIME ftLocal;
 253     if ( !::SystemTimeToFileTime(&st, &ftLocal) )
 254     {
 255         wxLogLastError(_T("SystemTimeToFileTime"));
 256     }
 257
 258     if ( !::LocalFileTimeToFileTime(&ftLocal, ft) )
 259     {
 260         wxLogLastError(_T("LocalFileTimeToFileTime"));
 261     }
 262 }
 263
 264 #endif // wxUSE_DATETIME && __WIN32__
 265
 266 // return a string with the volume par
 267 static wxString wxGetVolumeString(const wxString& volume, wxPathFormat format)
 268 {
 269     wxString path;
 270
 271     if ( !volume.empty() )
 272     {
 273         format = wxFileName::GetFormat(format);
 274
 275         // Special Windows UNC paths hack, part 2: undo what we did in
 276         // SplitPath() and make an UNC path if we have a drive which is not a
 277         // single letter (hopefully the network shares can't be one letter only
 278         // although I didn't find any authoritative docs on this)
 279         if ( format == wxPATH_DOS && volume.length() > 1 )
 280         {
 281             path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
 282         }
 283         else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
 284         {
 285             path << volume << wxFileName::GetVolumeSeparator(format);
 286         }
 287         // else ignore
 288     }
 289
 290     return path;
 291 }
 292
 293 // return true if the format used is the DOS/Windows one and the string looks
 294 // like a UNC path
 295 static bool IsUNCPath(const wxString& path, wxPathFormat format)
 296 {
 297     return format == wxPATH_DOS &&
 298                 path.length() >= 4 && // "\\a" can't be a UNC path
 299                     path[0u] == wxFILE_SEP_PATH_DOS &&
 300                         path[1u] == wxFILE_SEP_PATH_DOS &&
 301                             path[2u] != wxFILE_SEP_PATH_DOS;
 302 }
 303
 304 // ============================================================================
 305 // implementation
 306 // ============================================================================
 307
 308 // ----------------------------------------------------------------------------
 309 // wxFileName construction
 310 // ----------------------------------------------------------------------------
 311
 312 void wxFileName::Assign( const wxFileName &filepath )
 313 {
 314     m_volume = filepath.GetVolume();
 315     m_dirs = filepath.GetDirs();
 316     m_name = filepath.GetName();
 317     m_ext = filepath.GetExt();
 318     m_relative = filepath.m_relative;
 319     m_hasExt = filepath.m_hasExt;
 320 }
 321
 322 void wxFileName::Assign(const wxString& volume,
 323                         const wxString& path,
 324                         const wxString& name,
 325                         const wxString& ext,
 326                         bool hasExt,
 327                         wxPathFormat format)
 328 {
 329     // we should ignore paths which look like UNC shares because we already
 330     // have the volume here and the UNC notation (\\server\path) is only valid
 331     // for paths which don't start with a volume, so prevent SetPath() from
 332     // recognizing "\\foo\bar" in "c:\\foo\bar" as an UNC path
 333     //
 334     // note also that this is a rather ugly way to do what we want (passing
 335     // some kind of flag telling to ignore UNC paths to SetPath() would be
 336     // better) but this is the safest thing to do to avoid breaking backwards
 337     // compatibility in 2.8
 338     if ( IsUNCPath(path, format) )
 339     {
 340         // remove one of the 2 leading backslashes to ensure that it's not
 341         // recognized as an UNC path by SetPath()
 342         wxString pathNonUNC(path, 1, wxString::npos);
 343         SetPath(pathNonUNC, format);
 344     }
 345     else // no UNC complications
 346     {
 347         SetPath(path, format);
 348     }
 349
 350     m_volume = volume;
 351     m_ext = ext;
 352     m_name = name;
 353
 354     m_hasExt = hasExt;
 355 }
 356
 357 void wxFileName::SetPath( const wxString& pathOrig, wxPathFormat format )
 358 {
 359     m_dirs.Clear();
 360
 361     if ( pathOrig.empty() )
 362     {
 363         // no path at all
 364         m_relative = true;
 365
 366         return;
 367     }
 368
 369     format = GetFormat( format );
 370
 371     // 0) deal with possible volume part first
 372     wxString volume,
 373              path;
 374     SplitVolume(pathOrig, &volume, &path, format);
 375     if ( !volume.empty() )
 376     {
 377         m_relative = false;
 378
 379         SetVolume(volume);
 380     }
 381
 382     // 1) Determine if the path is relative or absolute.
 383     wxChar leadingChar = path[0u];
 384
 385     switch (format)
 386     {
 387         case wxPATH_MAC:
 388             m_relative = leadingChar == wxT(':');
 389
 390             // We then remove a leading ":". The reason is in our
 391             // storage form for relative paths:
 392             // ":dir:file.txt" actually means "./dir/file.txt" in
 393             // DOS notation and should get stored as
 394             // (relative) (dir) (file.txt)
 395             // "::dir:file.txt" actually means "../dir/file.txt"
 396             // stored as (relative) (..) (dir) (file.txt)
 397             // This is important only for the Mac as an empty dir
 398             // actually means <UP>, whereas under DOS, double
 399             // slashes can be ignored: "\\\\" is the same as "\\".
 400             if (m_relative)
 401                 path.erase( 0, 1 );
 402             break;
 403
 404         case wxPATH_VMS:
 405             // TODO: what is the relative path format here?
 406             m_relative = false;
 407             break;
 408
 409         default:
 410             wxFAIL_MSG( _T("Unknown path format") );
 411             // !! Fall through !!
 412
 413         case wxPATH_UNIX:
 414             // the paths of the form "~" or "~username" are absolute
 415             m_relative = leadingChar != wxT('/') && leadingChar != _T('~');
 416             break;
 417
 418         case wxPATH_DOS:
 419             m_relative = !IsPathSeparator(leadingChar, format);
 420             break;
 421
 422     }
 423
 424     // 2) Break up the path into its members. If the original path
 425     //    was just "/" or "\\", m_dirs will be empty. We know from
 426     //    the m_relative field, if this means "nothing" or "root dir".
 427
 428     wxStringTokenizer tn( path, GetPathSeparators(format) );
 429
 430     while ( tn.HasMoreTokens() )
 431     {
 432         wxString token = tn.GetNextToken();
 433
 434         // Remove empty token under DOS and Unix, interpret them
 435         // as .. under Mac.
 436         if (token.empty())
 437         {
 438             if (format == wxPATH_MAC)
 439                 m_dirs.Add( wxT("..") );
 440             // else ignore
 441         }
 442         else
 443         {
 444            m_dirs.Add( token );
 445         }
 446     }
 447 }
 448
 449 void wxFileName::Assign(const wxString& fullpath,
 450                         wxPathFormat format)
 451 {
 452     wxString volume, path, name, ext;
 453     bool hasExt;
 454     SplitPath(fullpath, &volume, &path, &name, &ext, &hasExt, format);
 455
 456     Assign(volume, path, name, ext, hasExt, format);
 457 }
 458
 459 void wxFileName::Assign(const wxString& fullpathOrig,
 460                         const wxString& fullname,
 461                         wxPathFormat format)
 462 {
 463     // always recognize fullpath as directory, even if it doesn't end with a
 464     // slash
 465     wxString fullpath = fullpathOrig;
 466     if ( !fullpath.empty() && !wxEndsWithPathSeparator(fullpath) )
 467     {
 468         fullpath += GetPathSeparator(format);
 469     }
 470
 471     wxString volume, path, name, ext;
 472     bool hasExt;
 473
 474     // do some consistency checks in debug mode: the name should be really just
 475     // the filename and the path should be really just a path
 476 #ifdef __WXDEBUG__
 477     wxString volDummy, pathDummy, nameDummy, extDummy;
 478
 479     SplitPath(fullname, &volDummy, &pathDummy, &name, &ext, &hasExt, format);
 480
 481     wxASSERT_MSG( volDummy.empty() && pathDummy.empty(),
 482                   _T("the file name shouldn't contain the path") );
 483
 484     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 485
 486     wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
 487                   _T("the path shouldn't contain file name nor extension") );
 488
 489 #else // !__WXDEBUG__
 490     SplitPath(fullname, NULL /* no volume */, NULL /* no path */,
 491                         &name, &ext, &hasExt, format);
 492     SplitPath(fullpath, &volume, &path, NULL, NULL, format);
 493 #endif // __WXDEBUG__/!__WXDEBUG__
 494
 495     Assign(volume, path, name, ext, hasExt, format);
 496 }
 497
 498 void wxFileName::Assign(const wxString& pathOrig,
 499                         const wxString& name,
 500                         const wxString& ext,
 501                         wxPathFormat format)
 502 {
 503     wxString volume,
 504              path;
 505     SplitVolume(pathOrig, &volume, &path, format);
 506
 507     Assign(volume, path, name, ext, format);
 508 }
 509
 510 void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 511 {
 512     Assign(dir, wxEmptyString, format);
 513 }
 514
 515 void wxFileName::Clear()
 516 {
 517     m_dirs.Clear();
 518
 519     m_volume =
 520     m_name =
 521     m_ext = wxEmptyString;
 522
 523     // we don't have any absolute path for now
 524     m_relative = true;
 525
 526     // nor any extension
 527     m_hasExt = false;
 528 }
 529
 530 /* static */
 531 wxFileName wxFileName::FileName(const wxString& file, wxPathFormat format)
 532 {
 533     return wxFileName(file, format);
 534 }
 535
 536 /* static */
 537 wxFileName wxFileName::DirName(const wxString& dir, wxPathFormat format)
 538 {
 539     wxFileName fn;
 540     fn.AssignDir(dir, format);
 541     return fn;
 542 }
 543
 544 // ----------------------------------------------------------------------------
 545 // existence tests
 546 // ----------------------------------------------------------------------------
 547
 548 bool wxFileName::FileExists() const
 549 {
 550     return wxFileName::FileExists( GetFullPath() );
 551 }
 552
 553 bool wxFileName::FileExists( const wxString &file )
 554 {
 555     return ::wxFileExists( file );
 556 }
 557
 558 bool wxFileName::DirExists() const
 559 {
 560     return wxFileName::DirExists( GetPath() );
 561 }
 562
 563 bool wxFileName::DirExists( const wxString &dir )
 564 {
 565     return ::wxDirExists( dir );
 566 }
 567
 568 // ----------------------------------------------------------------------------
 569 // CWD and HOME stuff
 570 // ----------------------------------------------------------------------------
 571
 572 void wxFileName::AssignCwd(const wxString& volume)
 573 {
 574     AssignDir(wxFileName::GetCwd(volume));
 575 }
 576
 577 /* static */
 578 wxString wxFileName::GetCwd(const wxString& volume)
 579 {
 580     // if we have the volume, we must get the current directory on this drive
 581     // and to do this we have to chdir to this volume - at least under Windows,
 582     // I don't know how to get the current drive on another volume elsewhere
 583     // (TODO)
 584     wxString cwdOld;
 585     if ( !volume.empty() )
 586     {
 587         cwdOld = wxGetCwd();
 588         SetCwd(volume + GetVolumeSeparator());
 589     }
 590
 591     wxString cwd = ::wxGetCwd();
 592
 593     if ( !volume.empty() )
 594     {
 595         SetCwd(cwdOld);
 596     }
 597
 598     return cwd;
 599 }
 600
 601 bool wxFileName::SetCwd()
 602 {
 603     return wxFileName::SetCwd( GetPath() );
 604 }
 605
 606 bool wxFileName::SetCwd( const wxString &cwd )
 607 {
 608     return ::wxSetWorkingDirectory( cwd );
 609 }
 610
 611 void wxFileName::AssignHomeDir()
 612 {
 613     AssignDir(wxFileName::GetHomeDir());
 614 }
 615
 616 wxString wxFileName::GetHomeDir()
 617 {
 618     return ::wxGetHomeDir();
 619 }
 620
 621
 622 // ----------------------------------------------------------------------------
 623 // CreateTempFileName
 624 // ----------------------------------------------------------------------------
 625
 626 #if wxUSE_FILE || wxUSE_FFILE
 627
 628
 629 #if !defined wx_fdopen && defined HAVE_FDOPEN
 630     #define wx_fdopen fdopen
 631 #endif
 632
 633 // NB: GetTempFileName() under Windows creates the file, so using
 634 //     O_EXCL there would fail
 635 #ifdef __WINDOWS__
 636     #define wxOPEN_EXCL 0
 637 #else
 638     #define wxOPEN_EXCL O_EXCL
 639 #endif
 640
 641
 642 #ifdef wxOpenOSFHandle
 643 #define WX_HAVE_DELETE_ON_CLOSE
 644 // On Windows create a file with the FILE_FLAGS_DELETE_ON_CLOSE flags.
 645 //
 646 static int wxOpenWithDeleteOnClose(const wxString& filename)
 647 {
 648     DWORD access = GENERIC_READ | GENERIC_WRITE;
 649
 650     DWORD disposition = OPEN_ALWAYS;
 651
 652     DWORD attributes = FILE_ATTRIBUTE_TEMPORARY |
 653                        FILE_FLAG_DELETE_ON_CLOSE;
 654
 655     HANDLE h = ::CreateFile(filename.fn_str(), access, 0, NULL,
 656                             disposition, attributes, NULL);
 657
 658     return wxOpenOSFHandle(h, wxO_BINARY);
 659 }
 660 #endif // wxOpenOSFHandle
 661
 662
 663 // Helper to open the file
 664 //
 665 static int wxTempOpen(const wxString& path, bool *deleteOnClose)
 666 {
 667 #ifdef WX_HAVE_DELETE_ON_CLOSE
 668     if (*deleteOnClose)
 669         return wxOpenWithDeleteOnClose(path);
 670 #endif
 671
 672     *deleteOnClose = false;
 673
 674     return wxOpen(path, wxO_BINARY | O_RDWR | O_CREAT | wxOPEN_EXCL, 0600);
 675 }
 676
 677
 678 #if wxUSE_FFILE
 679 // Helper to open the file and attach it to the wxFFile
 680 //
 681 static bool wxTempOpen(wxFFile *file, const wxString& path, bool *deleteOnClose)
 682 {
 683 #ifndef wx_fdopen
 684     *deleteOnClose = false;
 685     return file->Open(path, _T("w+b"));
 686 #else // wx_fdopen
 687     int fd = wxTempOpen(path, deleteOnClose);
 688     if (fd == -1)
 689         return false;
 690     file->Attach(wx_fdopen(fd, "w+b"));
 691     return file->IsOpened();
 692 #endif // wx_fdopen
 693 }
 694 #endif // wxUSE_FFILE
 695
 696
 697 #if !wxUSE_FILE
 698     #define WXFILEARGS(x, y) y
 699 #elif !wxUSE_FFILE
 700     #define WXFILEARGS(x, y) x
 701 #else
 702     #define WXFILEARGS(x, y) x, y
 703 #endif
 704
 705
 706 // Implementation of wxFileName::CreateTempFileName().
 707 //
 708 static wxString wxCreateTempImpl(
 709         const wxString& prefix,
 710         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp),
 711         bool *deleteOnClose = NULL)
 712 {
 713 #if wxUSE_FILE && wxUSE_FFILE
 714     wxASSERT(fileTemp == NULL || ffileTemp == NULL);
 715 #endif
 716     wxString path, dir, name;
 717     bool wantDeleteOnClose = false;
 718
 719     if (deleteOnClose)
 720     {
 721         // set the result to false initially
 722         wantDeleteOnClose = *deleteOnClose;
 723         *deleteOnClose = false;
 724     }
 725     else
 726     {
 727         // easier if it alwasys points to something
 728         deleteOnClose = &wantDeleteOnClose;
 729     }
 730
 731     // use the directory specified by the prefix
 732     wxFileName::SplitPath(prefix, &dir, &name, NULL /* extension */);
 733
 734     if (dir.empty())
 735     {
 736         dir = wxFileName::GetTempDir();
 737     }
 738
 739 #if defined(__WXWINCE__)
 740     path = dir + wxT("\\") + name;
 741     int i = 1;
 742     while (wxFileName::FileExists(path))
 743     {
 744         path = dir + wxT("\\") + name ;
 745         path << i;
 746         i ++;
 747     }
 748
 749 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 750     if ( !::GetTempFileName(dir.fn_str(), name.fn_str(), 0,
 751                             wxStringBuffer(path, MAX_PATH + 1)) )
 752     {
 753         wxLogLastError(_T("GetTempFileName"));
 754
 755         path.clear();
 756     }
 757
 758 #else // !Windows
 759     path = dir;
 760
 761     if ( !wxEndsWithPathSeparator(dir) &&
 762             (name.empty() || !wxIsPathSeparator(name[0u])) )
 763     {
 764         path += wxFILE_SEP_PATH;
 765     }
 766
 767     path += name;
 768
 769 #if defined(HAVE_MKSTEMP)
 770     // scratch space for mkstemp()
 771     path += _T("XXXXXX");
 772
 773     // we need to copy the path to the buffer in which mkstemp() can modify it
 774     wxCharBuffer buf(path.fn_str());
 775
 776     // cast is safe because the string length doesn't change
 777     int fdTemp = mkstemp( (char*)(const char*) buf );
 778     if ( fdTemp == -1 )
 779     {
 780         // this might be not necessary as mkstemp() on most systems should have
 781         // already done it but it doesn't hurt neither...
 782         path.clear();
 783     }
 784     else // mkstemp() succeeded
 785     {
 786         path = wxConvFile.cMB2WX( (const char*) buf );
 787
 788     #if wxUSE_FILE
 789         // avoid leaking the fd
 790         if ( fileTemp )
 791         {
 792             fileTemp->Attach(fdTemp);
 793         }
 794         else
 795     #endif
 796
 797     #if wxUSE_FFILE
 798         if ( ffileTemp )
 799         {
 800         #ifdef wx_fdopen
 801             ffileTemp->Attach(wx_fdopen(fdTemp, "r+b"));
 802         #else
 803             ffileTemp->Open(path, _T("r+b"));
 804             close(fdTemp);
 805         #endif
 806         }
 807         else
 808     #endif
 809
 810         {
 811             close(fdTemp);
 812         }
 813     }
 814 #else // !HAVE_MKSTEMP
 815
 816 #ifdef HAVE_MKTEMP
 817     // same as above
 818     path += _T("XXXXXX");
 819
 820     wxCharBuffer buf = wxConvFile.cWX2MB( path );
 821     if ( !mktemp( (char*)(const char*) buf ) )
 822     {
 823         path.clear();
 824     }
 825     else
 826     {
 827         path = wxConvFile.cMB2WX( (const char*) buf );
 828     }
 829 #else // !HAVE_MKTEMP (includes __DOS__)
 830     // generate the unique file name ourselves
 831     #if !defined(__DOS__) && !defined(__PALMOS__) && (!defined(__MWERKS__) || defined(__DARWIN__) )
 832     path << (unsigned int)getpid();
 833     #endif
 834
 835     wxString pathTry;
 836
 837     static const size_t numTries = 1000;
 838     for ( size_t n = 0; n < numTries; n++ )
 839     {
 840         // 3 hex digits is enough for numTries == 1000 < 4096
 841         pathTry = path + wxString::Format(_T("%.03x"), (unsigned int) n);
 842         if ( !wxFileName::FileExists(pathTry) )
 843         {
 844             break;
 845         }
 846
 847         pathTry.clear();
 848     }
 849
 850     path = pathTry;
 851 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 852
 853 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 854
 855 #endif // Windows/!Windows
 856
 857     if ( path.empty() )
 858     {
 859         wxLogSysError(_("Failed to create a temporary file name"));
 860     }
 861     else
 862     {
 863         bool ok = true;
 864
 865         // open the file - of course, there is a race condition here, this is
 866         // why we always prefer using mkstemp()...
 867     #if wxUSE_FILE
 868         if ( fileTemp && !fileTemp->IsOpened() )
 869         {
 870             *deleteOnClose = wantDeleteOnClose;
 871             int fd = wxTempOpen(path, deleteOnClose);
 872             if (fd != -1)
 873                 fileTemp->Attach(fd);
 874             else
 875                 ok = false;
 876         }
 877     #endif
 878
 879     #if wxUSE_FFILE
 880         if ( ffileTemp && !ffileTemp->IsOpened() )
 881         {
 882             *deleteOnClose = wantDeleteOnClose;
 883             ok = wxTempOpen(ffileTemp, path, deleteOnClose);
 884         }
 885     #endif
 886
 887         if ( !ok )
 888         {
 889             // FIXME: If !ok here should we loop and try again with another
 890             //        file name?  That is the standard recourse if open(O_EXCL)
 891             //        fails, though of course it should be protected against
 892             //        possible infinite looping too.
 893
 894             wxLogError(_("Failed to open temporary file."));
 895
 896             path.clear();
 897         }
 898     }
 899
 900     return path;
 901 }
 902
 903
 904 static bool wxCreateTempImpl(
 905         const wxString& prefix,
 906         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp),
 907         wxString *name)
 908 {
 909     bool deleteOnClose = true;
 910
 911     *name = wxCreateTempImpl(prefix,
 912                              WXFILEARGS(fileTemp, ffileTemp),
 913                              &deleteOnClose);
 914
 915     bool ok = !name->empty();
 916
 917     if (deleteOnClose)
 918         name->clear();
 919 #ifdef __UNIX__
 920     else if (ok && wxRemoveFile(*name))
 921         name->clear();
 922 #endif
 923
 924     return ok;
 925 }
 926
 927
 928 static void wxAssignTempImpl(
 929         wxFileName *fn,
 930         const wxString& prefix,
 931         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp))
 932 {
 933     wxString tempname;
 934     tempname = wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, ffileTemp));
 935
 936     if ( tempname.empty() )
 937     {
 938         // error, failed to get temp file name
 939         fn->Clear();
 940     }
 941     else // ok
 942     {
 943         fn->Assign(tempname);
 944     }
 945 }
 946
 947
 948 void wxFileName::AssignTempFileName(const wxString& prefix)
 949 {
 950     wxAssignTempImpl(this, prefix, WXFILEARGS(NULL, NULL));
 951 }
 952
 953 /* static */
 954 wxString wxFileName::CreateTempFileName(const wxString& prefix)
 955 {
 956     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, NULL));
 957 }
 958
 959 #endif // wxUSE_FILE || wxUSE_FFILE
 960
 961
 962 #if wxUSE_FILE
 963
 964 wxString wxCreateTempFileName(const wxString& prefix,
 965                               wxFile *fileTemp,
 966                               bool *deleteOnClose)
 967 {
 968     return wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, NULL), deleteOnClose);
 969 }
 970
 971 bool wxCreateTempFile(const wxString& prefix,
 972                       wxFile *fileTemp,
 973                       wxString *name)
 974 {
 975     return wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, NULL), name);
 976 }
 977
 978 void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
 979 {
 980     wxAssignTempImpl(this, prefix, WXFILEARGS(fileTemp, NULL));
 981 }
 982
 983 /* static */
 984 wxString
 985 wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
 986 {
 987     return wxCreateTempFileName(prefix, fileTemp);
 988 }
 989
 990 #endif // wxUSE_FILE
 991
 992
 993 #if wxUSE_FFILE
 994
 995 wxString wxCreateTempFileName(const wxString& prefix,
 996                               wxFFile *fileTemp,
 997                               bool *deleteOnClose)
 998 {
 999     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, fileTemp), deleteOnClose);
1000 }
1001
1002 bool wxCreateTempFile(const wxString& prefix,
1003                       wxFFile *fileTemp,
1004                       wxString *name)
1005 {
1006     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, fileTemp), name);
1007
1008 }
1009
1010 void wxFileName::AssignTempFileName(const wxString& prefix, wxFFile *fileTemp)
1011 {
1012     wxAssignTempImpl(this, prefix, WXFILEARGS(NULL, fileTemp));
1013 }
1014
1015 /* static */
1016 wxString
1017 wxFileName::CreateTempFileName(const wxString& prefix, wxFFile *fileTemp)
1018 {
1019     return wxCreateTempFileName(prefix, fileTemp);
1020 }
1021
1022 #endif // wxUSE_FFILE
1023
1024
1025 // ----------------------------------------------------------------------------
1026 // directory operations
1027 // ----------------------------------------------------------------------------
1028
1029 // helper of GetTempDir(): check if the given directory exists and return it if
1030 // it does or an empty string otherwise
1031 namespace
1032 {
1033
1034 wxString CheckIfDirExists(const wxString& dir)
1035 {
1036     return wxFileName::DirExists(dir) ? dir : wxString();
1037 }
1038
1039 } // anonymous namespace
1040
1041 wxString wxFileName::GetTempDir()
1042 {
1043     // first try getting it from environment: this allows overriding the values
1044     // used by default if the user wants to create temporary files in another
1045     // directory
1046     wxString dir = CheckIfDirExists(wxGetenv("TMPDIR"));
1047     if ( dir.empty() )
1048     {
1049         dir = CheckIfDirExists(wxGetenv("TMP"));
1050         if ( dir.empty() )
1051             dir = CheckIfDirExists(wxGetenv("TEMP"));
1052     }
1053
1054     // if no environment variables are set, use the system default
1055     if ( dir.empty() )
1056     {
1057 #if defined(__WXWINCE__)
1058         dir = CheckIfDirExists(wxT("\\temp"));
1059 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1060         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
1061         {
1062             wxLogLastError(_T("GetTempPath"));
1063         }
1064 #elif defined(__WXMAC__) && wxOSX_USE_CARBON
1065         dir = wxMacFindFolder(short(kOnSystemDisk), kTemporaryFolderType, kCreateFolder);
1066 #endif // systems with native way
1067     }
1068
1069     // fall back to hard coded value
1070     if ( dir.empty() )
1071     {
1072 #ifdef __UNIX_LIKE__
1073         dir = CheckIfDirExists("/tmp");
1074         if ( dir.empty() )
1075 #endif // __UNIX_LIKE__
1076             dir = ".";
1077     }
1078
1079     return dir;
1080 }
1081
1082 bool wxFileName::Mkdir( int perm, int flags )
1083 {
1084     return wxFileName::Mkdir(GetPath(), perm, flags);
1085 }
1086
1087 bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
1088 {
1089     if ( flags & wxPATH_MKDIR_FULL )
1090     {
1091         // split the path in components
1092         wxFileName filename;
1093         filename.AssignDir(dir);
1094
1095         wxString currPath;
1096         if ( filename.HasVolume())
1097         {
1098             currPath << wxGetVolumeString(filename.GetVolume(), wxPATH_NATIVE);
1099         }
1100
1101         wxArrayString dirs = filename.GetDirs();
1102         size_t count = dirs.GetCount();
1103         for ( size_t i = 0; i < count; i++ )
1104         {
1105             if ( i > 0 || filename.IsAbsolute() )
1106                 currPath += wxFILE_SEP_PATH;
1107             currPath += dirs[i];
1108
1109             if (!DirExists(currPath))
1110             {
1111                 if (!wxMkdir(currPath, perm))
1112                 {
1113                     // no need to try creating further directories
1114                     return false;
1115                 }
1116             }
1117         }
1118
1119         return true;
1120
1121     }
1122
1123     return ::wxMkdir( dir, perm );
1124 }
1125
1126 bool wxFileName::Rmdir()
1127 {
1128     return wxFileName::Rmdir( GetPath() );
1129 }
1130
1131 bool wxFileName::Rmdir( const wxString &dir )
1132 {
1133     return ::wxRmdir( dir );
1134 }
1135
1136 // ----------------------------------------------------------------------------
1137 // path normalization
1138 // ----------------------------------------------------------------------------
1139
1140 bool wxFileName::Normalize(int flags,
1141                            const wxString& cwd,
1142                            wxPathFormat format)
1143 {
1144     // deal with env vars renaming first as this may seriously change the path
1145     if ( flags & wxPATH_NORM_ENV_VARS )
1146     {
1147         wxString pathOrig = GetFullPath(format);
1148         wxString path = wxExpandEnvVars(pathOrig);
1149         if ( path != pathOrig )
1150         {
1151             Assign(path);
1152         }
1153     }
1154
1155     // the existing path components
1156     wxArrayString dirs = GetDirs();
1157
1158     // the path to prepend in front to make the path absolute
1159     wxFileName curDir;
1160
1161     format = GetFormat(format);
1162
1163     // set up the directory to use for making the path absolute later
1164     if ( (flags & wxPATH_NORM_ABSOLUTE) && !IsAbsolute(format) )
1165     {
1166         if ( cwd.empty() )
1167         {
1168             curDir.AssignCwd(GetVolume());
1169         }
1170         else // cwd provided
1171         {
1172             curDir.AssignDir(cwd);
1173         }
1174     }
1175
1176     // handle ~ stuff under Unix only
1177     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
1178     {
1179         if ( !dirs.IsEmpty() )
1180         {
1181             wxString dir = dirs[0u];
1182             if ( !dir.empty() && dir[0u] == _T('~') )
1183             {
1184                 // to make the path absolute use the home directory
1185                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
1186
1187                 // if we are expanding the tilde, then this path
1188                 // *should* be already relative (since we checked for
1189                 // the tilde only in the first char of the first dir);
1190                 // if m_relative==false, it's because it was initialized
1191                 // from a string which started with /~; in that case
1192                 // we reach this point but then need m_relative=true
1193                 // for relative->absolute expansion later
1194                 m_relative = true;
1195
1196                 dirs.RemoveAt(0u);
1197             }
1198         }
1199     }
1200
1201     // transform relative path into abs one
1202     if ( curDir.IsOk() )
1203     {
1204         // this path may be relative because it doesn't have the volume name
1205         // and still have m_relative=true; in this case we shouldn't modify
1206         // our directory components but just set the current volume
1207         if ( !HasVolume() && curDir.HasVolume() )
1208         {
1209             SetVolume(curDir.GetVolume());
1210
1211             if ( !m_relative )
1212         {
1213                 // yes, it was the case - we don't need curDir then
1214                 curDir.Clear();
1215             }
1216         }
1217
1218         // finally, prepend curDir to the dirs array
1219         wxArrayString dirsNew = curDir.GetDirs();
1220         WX_PREPEND_ARRAY(dirs, dirsNew);
1221
1222         // if we used e.g. tilde expansion previously and wxGetUserHome didn't
1223         // return for some reason an absolute path, then curDir maybe not be absolute!
1224         if ( curDir.IsAbsolute(format) )
1225         {
1226             // we have prepended an absolute path and thus we are now an absolute
1227             // file name too
1228             m_relative = false;
1229         }
1230         // else if (flags & wxPATH_NORM_ABSOLUTE):
1231         //   should we warn the user that we didn't manage to make the path absolute?
1232     }
1233
1234     // now deal with ".", ".." and the rest
1235     m_dirs.Empty();
1236     size_t count = dirs.GetCount();
1237     for ( size_t n = 0; n < count; n++ )
1238     {
1239         wxString dir = dirs[n];
1240
1241         if ( flags & wxPATH_NORM_DOTS )
1242         {
1243             if ( dir == wxT(".") )
1244             {
1245                 // just ignore
1246                 continue;
1247             }
1248
1249             if ( dir == wxT("..") )
1250             {
1251                 if ( m_dirs.IsEmpty() )
1252                 {
1253                     wxLogError(_("The path '%s' contains too many \"..\"!"),
1254                                GetFullPath().c_str());
1255                     return false;
1256                 }
1257
1258                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
1259                 continue;
1260             }
1261         }
1262
1263         m_dirs.Add(dir);
1264     }
1265
1266 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
1267     if ( (flags & wxPATH_NORM_SHORTCUT) )
1268     {
1269         wxString filename;
1270         if (GetShortcutTarget(GetFullPath(format), filename))
1271         {
1272             m_relative = false;
1273             Assign(filename);
1274         }
1275     }
1276 #endif
1277
1278 #if defined(__WIN32__)
1279     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
1280     {
1281         Assign(GetLongPath());
1282     }
1283 #endif // Win32
1284
1285     // Change case  (this should be kept at the end of the function, to ensure
1286     // that the path doesn't change any more after we normalize its case)
1287     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
1288     {
1289         m_volume.MakeLower();
1290         m_name.MakeLower();
1291         m_ext.MakeLower();
1292
1293         // directory entries must be made lower case as well
1294         count = m_dirs.GetCount();
1295         for ( size_t i = 0; i < count; i++ )
1296         {
1297             m_dirs[i].MakeLower();
1298         }
1299     }
1300
1301     return true;
1302 }
1303
1304 #ifndef __WXWINCE__
1305 bool wxFileName::ReplaceEnvVariable(const wxString& envname,
1306                                     const wxString& replacementFmtString,
1307                                     wxPathFormat format)
1308 {
1309     // look into stringForm for the contents of the given environment variable
1310     wxString val;
1311     if (envname.empty() ||
1312         !wxGetEnv(envname, &val))
1313         return false;
1314     if (val.empty())
1315         return false;
1316
1317     wxString stringForm = GetPath(wxPATH_GET_VOLUME, format);
1318         // do not touch the file name and the extension
1319
1320     wxString replacement = wxString::Format(replacementFmtString, envname);
1321     stringForm.Replace(val, replacement);
1322
1323     // Now assign ourselves the modified path:
1324     Assign(stringForm, GetFullName(), format);
1325
1326     return true;
1327 }
1328 #endif
1329
1330 bool wxFileName::ReplaceHomeDir(wxPathFormat format)
1331 {
1332     wxString homedir = wxGetHomeDir();
1333     if (homedir.empty())
1334         return false;
1335
1336     wxString stringForm = GetPath(wxPATH_GET_VOLUME, format);
1337         // do not touch the file name and the extension
1338
1339     stringForm.Replace(homedir, "~");
1340
1341     // Now assign ourselves the modified path:
1342     Assign(stringForm, GetFullName(), format);
1343
1344     return true;
1345 }
1346
1347 // ----------------------------------------------------------------------------
1348 // get the shortcut target
1349 // ----------------------------------------------------------------------------
1350
1351 // WinCE (3) doesn't have CLSID_ShellLink, IID_IShellLink definitions.
1352 // The .lnk file is a plain text file so it should be easy to
1353 // make it work. Hint from Google Groups:
1354 // "If you open up a lnk file, you'll see a
1355 // number, followed by a pound sign (#), followed by more text. The
1356 // number is the number of characters that follows the pound sign. The
1357 // characters after the pound sign are the command line (which _can_
1358 // include arguments) to be executed. Any path (e.g. \windows\program
1359 // files\myapp.exe) that includes spaces needs to be enclosed in
1360 // quotation marks."
1361
1362 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
1363 // The following lines are necessary under WinCE
1364 // #include "wx/msw/private.h"
1365 // #include <ole2.h>
1366 #include <shlobj.h>
1367 #if defined(__WXWINCE__)
1368 #include <shlguid.h>
1369 #endif
1370
1371 bool wxFileName::GetShortcutTarget(const wxString& shortcutPath,
1372                                    wxString& targetFilename,
1373                                    wxString* arguments)
1374 {
1375     wxString path, file, ext;
1376     wxFileName::SplitPath(shortcutPath, & path, & file, & ext);
1377
1378     HRESULT hres;
1379     IShellLink* psl;
1380     bool success = false;
1381
1382     // Assume it's not a shortcut if it doesn't end with lnk
1383     if (ext.CmpNoCase(wxT("lnk"))!=0)
1384         return false;
1385
1386     // create a ShellLink object
1387     hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
1388                             IID_IShellLink, (LPVOID*) &psl);
1389
1390     if (SUCCEEDED(hres))
1391     {
1392         IPersistFile* ppf;
1393         hres = psl->QueryInterface( IID_IPersistFile, (LPVOID *) &ppf);
1394         if (SUCCEEDED(hres))
1395         {
1396             WCHAR wsz[MAX_PATH];
1397
1398             MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, shortcutPath.mb_str(), -1, wsz,
1399                                 MAX_PATH);
1400
1401             hres = ppf->Load(wsz, 0);
1402             ppf->Release();
1403
1404             if (SUCCEEDED(hres))
1405             {
1406                 wxChar buf[2048];
1407                 // Wrong prototype in early versions
1408 #if defined(__MINGW32__) && !wxCHECK_W32API_VERSION(2, 2)
1409                 psl->GetPath((CHAR*) buf, 2048, NULL, SLGP_UNCPRIORITY);
1410 #else
1411                 psl->GetPath(buf, 2048, NULL, SLGP_UNCPRIORITY);
1412 #endif
1413                 targetFilename = wxString(buf);
1414                 success = (shortcutPath != targetFilename);
1415
1416                 psl->GetArguments(buf, 2048);
1417                 wxString args(buf);
1418                 if (!args.empty() && arguments)
1419                 {
1420                     *arguments = args;
1421                 }
1422             }
1423         }
1424
1425         psl->Release();
1426     }
1427     return success;
1428 }
1429
1430 #endif // __WIN32__ && !__WXWINCE__
1431
1432
1433 // ----------------------------------------------------------------------------
1434 // absolute/relative paths
1435 // ----------------------------------------------------------------------------
1436
1437 bool wxFileName::IsAbsolute(wxPathFormat format) const
1438 {
1439     // if our path doesn't start with a path separator, it's not an absolute
1440     // path
1441     if ( m_relative )
1442         return false;
1443
1444     if ( !GetVolumeSeparator(format).empty() )
1445     {
1446         // this format has volumes and an absolute path must have one, it's not
1447         // enough to have the full path to bean absolute file under Windows
1448         if ( GetVolume().empty() )
1449             return false;
1450     }
1451
1452     return true;
1453 }
1454
1455 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
1456 {
1457     wxFileName fnBase = wxFileName::DirName(pathBase, format);
1458
1459     // get cwd only once - small time saving
1460     wxString cwd = wxGetCwd();
1461     Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1462     fnBase.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1463
1464     bool withCase = IsCaseSensitive(format);
1465
1466     // we can't do anything if the files live on different volumes
1467     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
1468     {
1469         // nothing done
1470         return false;
1471     }
1472
1473     // same drive, so we don't need our volume
1474     m_volume.clear();
1475
1476     // remove common directories starting at the top
1477     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
1478                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
1479     {
1480         m_dirs.RemoveAt(0);
1481         fnBase.m_dirs.RemoveAt(0);
1482     }
1483
1484     // add as many ".." as needed
1485     size_t count = fnBase.m_dirs.GetCount();
1486     for ( size_t i = 0; i < count; i++ )
1487     {
1488         m_dirs.Insert(wxT(".."), 0u);
1489     }
1490
1491     if ( format == wxPATH_UNIX || format == wxPATH_DOS )
1492     {
1493         // a directory made relative with respect to itself is '.' under Unix
1494         // and DOS, by definition (but we don't have to insert "./" for the
1495         // files)
1496         if ( m_dirs.IsEmpty() && IsDir() )
1497         {
1498             m_dirs.Add(_T('.'));
1499         }
1500     }
1501
1502     m_relative = true;
1503
1504     // we were modified
1505     return true;
1506 }
1507
1508 // ----------------------------------------------------------------------------
1509 // filename kind tests
1510 // ----------------------------------------------------------------------------
1511
1512 bool wxFileName::SameAs(const wxFileName& filepath, wxPathFormat format) const
1513 {
1514     wxFileName fn1 = *this,
1515                fn2 = filepath;
1516
1517     // get cwd only once - small time saving
1518     wxString cwd = wxGetCwd();
1519     fn1.Normalize(wxPATH_NORM_ALL | wxPATH_NORM_CASE, cwd, format);
1520     fn2.Normalize(wxPATH_NORM_ALL | wxPATH_NORM_CASE, cwd, format);
1521
1522     if ( fn1.GetFullPath() == fn2.GetFullPath() )
1523         return true;
1524
1525     // TODO: compare inodes for Unix, this works even when filenames are
1526     //       different but files are the same (symlinks) (VZ)
1527
1528     return false;
1529 }
1530
1531 /* static */
1532 bool wxFileName::IsCaseSensitive( wxPathFormat format )
1533 {
1534     // only Unix filenames are truely case-sensitive
1535     return GetFormat(format) == wxPATH_UNIX;
1536 }
1537
1538 /* static */
1539 wxString wxFileName::GetForbiddenChars(wxPathFormat format)
1540 {
1541     // Inits to forbidden characters that are common to (almost) all platforms.
1542     wxString strForbiddenChars = wxT("*?");
1543
1544     // If asserts, wxPathFormat has been changed. In case of a new path format
1545     // addition, the following code might have to be updated.
1546     wxCOMPILE_TIME_ASSERT(wxPATH_MAX == 5, wxPathFormatChanged);
1547     switch ( GetFormat(format) )
1548     {
1549         default :
1550             wxFAIL_MSG( wxT("Unknown path format") );
1551             // !! Fall through !!
1552
1553         case wxPATH_UNIX:
1554             break;
1555
1556         case wxPATH_MAC:
1557             // On a Mac even names with * and ? are allowed (Tested with OS
1558             // 9.2.1 and OS X 10.2.5)
1559             strForbiddenChars = wxEmptyString;
1560             break;
1561
1562         case wxPATH_DOS:
1563             strForbiddenChars += wxT("\\/:\"<>|");
1564             break;
1565
1566         case wxPATH_VMS:
1567             break;
1568     }
1569
1570     return strForbiddenChars;
1571 }
1572
1573 /* static */
1574 wxString wxFileName::GetVolumeSeparator(wxPathFormat WXUNUSED_IN_WINCE(format))
1575 {
1576 #ifdef __WXWINCE__
1577     return wxEmptyString;
1578 #else
1579     wxString sepVol;
1580
1581     if ( (GetFormat(format) == wxPATH_DOS) ||
1582          (GetFormat(format) == wxPATH_VMS) )
1583     {
1584         sepVol = wxFILE_SEP_DSK;
1585     }
1586     //else: leave empty
1587
1588     return sepVol;
1589 #endif
1590 }
1591
1592 /* static */
1593 wxString wxFileName::GetPathSeparators(wxPathFormat format)
1594 {
1595     wxString seps;
1596     switch ( GetFormat(format) )
1597     {
1598         case wxPATH_DOS:
1599             // accept both as native APIs do but put the native one first as
1600             // this is the one we use in GetFullPath()
1601             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
1602             break;
1603
1604         default:
1605             wxFAIL_MSG( _T("Unknown wxPATH_XXX style") );
1606             // fall through
1607
1608         case wxPATH_UNIX:
1609             seps = wxFILE_SEP_PATH_UNIX;
1610             break;
1611
1612         case wxPATH_MAC:
1613             seps = wxFILE_SEP_PATH_MAC;
1614             break;
1615
1616         case wxPATH_VMS:
1617             seps = wxFILE_SEP_PATH_VMS;
1618             break;
1619     }
1620
1621     return seps;
1622 }
1623
1624 /* static */
1625 wxString wxFileName::GetPathTerminators(wxPathFormat format)
1626 {
1627     format = GetFormat(format);
1628
1629     // under VMS the end of the path is ']', not the path separator used to
1630     // separate the components
1631     return format == wxPATH_VMS ? wxString(_T(']')) : GetPathSeparators(format);
1632 }
1633
1634 /* static */
1635 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
1636 {
1637     // wxString::Find() doesn't work as expected with NUL - it will always find
1638     // it, so test for it separately
1639     return ch != _T('\0') && GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
1640 }
1641
1642 // ----------------------------------------------------------------------------
1643 // path components manipulation
1644 // ----------------------------------------------------------------------------
1645
1646 /* static */ bool wxFileName::IsValidDirComponent(const wxString& dir)
1647 {
1648     if ( dir.empty() )
1649     {
1650         wxFAIL_MSG( _T("empty directory passed to wxFileName::InsertDir()") );
1651
1652         return false;
1653     }
1654
1655     const size_t len = dir.length();
1656     for ( size_t n = 0; n < len; n++ )
1657     {
1658         if ( dir[n] == GetVolumeSeparator() || IsPathSeparator(dir[n]) )
1659         {
1660             wxFAIL_MSG( _T("invalid directory component in wxFileName") );
1661
1662             return false;
1663         }
1664     }
1665
1666     return true;
1667 }
1668
1669 void wxFileName::AppendDir( const wxString& dir )
1670 {
1671     if ( IsValidDirComponent(dir) )
1672         m_dirs.Add( dir );
1673 }
1674
1675 void wxFileName::PrependDir( const wxString& dir )
1676 {
1677     InsertDir(0, dir);
1678 }
1679
1680 void wxFileName::InsertDir(size_t before, const wxString& dir)
1681 {
1682     if ( IsValidDirComponent(dir) )
1683         m_dirs.Insert(dir, before);
1684 }
1685
1686 void wxFileName::RemoveDir(size_t pos)
1687 {
1688     m_dirs.RemoveAt(pos);
1689 }
1690
1691 // ----------------------------------------------------------------------------
1692 // accessors
1693 // ----------------------------------------------------------------------------
1694
1695 void wxFileName::SetFullName(const wxString& fullname)
1696 {
1697     SplitPath(fullname, NULL /* no volume */, NULL /* no path */,
1698                         &m_name, &m_ext, &m_hasExt);
1699 }
1700
1701 wxString wxFileName::GetFullName() const
1702 {
1703     wxString fullname = m_name;
1704     if ( m_hasExt )
1705     {
1706         fullname << wxFILE_SEP_EXT << m_ext;
1707     }
1708
1709     return fullname;
1710 }
1711
1712 wxString wxFileName::GetPath( int flags, wxPathFormat format ) const
1713 {
1714     format = GetFormat( format );
1715
1716     wxString fullpath;
1717
1718     // return the volume with the path as well if requested
1719     if ( flags & wxPATH_GET_VOLUME )
1720     {
1721         fullpath += wxGetVolumeString(GetVolume(), format);
1722     }
1723
1724     // the leading character
1725     switch ( format )
1726     {
1727         case wxPATH_MAC:
1728             if ( m_relative )
1729                 fullpath += wxFILE_SEP_PATH_MAC;
1730             break;
1731
1732         case wxPATH_DOS:
1733             if ( !m_relative )
1734                 fullpath += wxFILE_SEP_PATH_DOS;
1735             break;
1736
1737         default:
1738             wxFAIL_MSG( wxT("Unknown path format") );
1739             // fall through
1740
1741         case wxPATH_UNIX:
1742             if ( !m_relative )
1743             {
1744                 // normally the absolute file names start with a slash
1745                 // with one exception: the ones like "~/foo.bar" don't
1746                 // have it
1747                 if ( m_dirs.IsEmpty() || m_dirs[0u] != _T('~') )
1748                 {
1749                     fullpath += wxFILE_SEP_PATH_UNIX;
1750                 }
1751             }
1752             break;
1753
1754         case wxPATH_VMS:
1755             // no leading character here but use this place to unset
1756             // wxPATH_GET_SEPARATOR flag: under VMS it doesn't make sense
1757             // as, if I understand correctly, there should never be a dot
1758             // before the closing bracket
1759             flags &= ~wxPATH_GET_SEPARATOR;
1760     }
1761
1762     if ( m_dirs.empty() )
1763     {
1764         // there is nothing more
1765         return fullpath;
1766     }
1767
1768     // then concatenate all the path components using the path separator
1769     if ( format == wxPATH_VMS )
1770     {
1771         fullpath += wxT('[');
1772     }
1773
1774     const size_t dirCount = m_dirs.GetCount();
1775     for ( size_t i = 0; i < dirCount; i++ )
1776     {
1777         switch (format)
1778         {
1779             case wxPATH_MAC:
1780                 if ( m_dirs[i] == wxT(".") )
1781                 {
1782                     // skip appending ':', this shouldn't be done in this
1783                     // case as "::" is interpreted as ".." under Unix
1784                     continue;
1785                 }
1786
1787                 // convert back from ".." to nothing
1788                 if ( !m_dirs[i].IsSameAs(wxT("..")) )
1789                      fullpath += m_dirs[i];
1790                 break;
1791
1792             default:
1793                 wxFAIL_MSG( wxT("Unexpected path format") );
1794                 // still fall through
1795
1796             case wxPATH_DOS:
1797             case wxPATH_UNIX:
1798                 fullpath += m_dirs[i];
1799                 break;
1800
1801             case wxPATH_VMS:
1802                 // TODO: What to do with ".." under VMS
1803
1804                 // convert back from ".." to nothing
1805                 if ( !m_dirs[i].IsSameAs(wxT("..")) )
1806                     fullpath += m_dirs[i];
1807                 break;
1808         }
1809
1810         if ( (flags & wxPATH_GET_SEPARATOR) || (i != dirCount - 1) )
1811             fullpath += GetPathSeparator(format);
1812     }
1813
1814     if ( format == wxPATH_VMS )
1815     {
1816         fullpath += wxT(']');
1817     }
1818
1819     return fullpath;
1820 }
1821
1822 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1823 {
1824     // we already have a function to get the path
1825     wxString fullpath = GetPath(wxPATH_GET_VOLUME | wxPATH_GET_SEPARATOR,
1826                                 format);
1827
1828     // now just add the file name and extension to it
1829     fullpath += GetFullName();
1830
1831     return fullpath;
1832 }
1833
1834 // Return the short form of the path (returns identity on non-Windows platforms)
1835 wxString wxFileName::GetShortPath() const
1836 {
1837     wxString path(GetFullPath());
1838
1839 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
1840     DWORD sz = ::GetShortPathName(path.fn_str(), NULL, 0);
1841     if ( sz != 0 )
1842     {
1843         wxString pathOut;
1844         if ( ::GetShortPathName
1845                (
1846                 path.fn_str(),
1847                 wxStringBuffer(pathOut, sz),
1848                 sz
1849                ) != 0 )
1850         {
1851             return pathOut;
1852         }
1853     }
1854 #endif // Windows
1855
1856     return path;
1857 }
1858
1859 // Return the long form of the path (returns identity on non-Windows platforms)
1860 wxString wxFileName::GetLongPath() const
1861 {
1862     wxString pathOut,
1863              path = GetFullPath();
1864
1865 #if defined(__WIN32__) && !defined(__WXWINCE__) && !defined(__WXMICROWIN__)
1866
1867 #if wxUSE_DYNLIB_CLASS
1868     typedef DWORD (WINAPI *GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1869
1870     // this is MT-safe as in the worst case we're going to resolve the function
1871     // twice -- but as the result is the same in both threads, it's ok
1872     static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1873     if ( !s_pfnGetLongPathName )
1874     {
1875         static bool s_triedToLoad = false;
1876
1877         if ( !s_triedToLoad )
1878         {
1879             s_triedToLoad = true;
1880
1881             wxDynamicLibrary dllKernel(_T("kernel32"));
1882
1883             const wxChar* GetLongPathName = _T("GetLongPathName")
1884 #if wxUSE_UNICODE
1885                               _T("W");
1886 #else // ANSI
1887                               _T("A");
1888 #endif // Unicode/ANSI
1889
1890             if ( dllKernel.HasSymbol(GetLongPathName) )
1891             {
1892                 s_pfnGetLongPathName = (GET_LONG_PATH_NAME)
1893                     dllKernel.GetSymbol(GetLongPathName);
1894             }
1895
1896             // note that kernel32.dll can be unloaded, it stays in memory
1897             // anyhow as all Win32 programs link to it and so it's safe to call
1898             // GetLongPathName() even after unloading it
1899         }
1900     }
1901
1902     if ( s_pfnGetLongPathName )
1903     {
1904         DWORD dwSize = (*s_pfnGetLongPathName)(path.fn_str(), NULL, 0);
1905         if ( dwSize > 0 )
1906         {
1907             if ( (*s_pfnGetLongPathName)
1908                  (
1909                   path.fn_str(),
1910                   wxStringBuffer(pathOut, dwSize),
1911                   dwSize
1912                  ) != 0 )
1913             {
1914                 return pathOut;
1915             }
1916         }
1917     }
1918 #endif // wxUSE_DYNLIB_CLASS
1919
1920     // The OS didn't support GetLongPathName, or some other error.
1921     // We need to call FindFirstFile on each component in turn.
1922
1923     WIN32_FIND_DATA findFileData;
1924     HANDLE hFind;
1925
1926     if ( HasVolume() )
1927         pathOut = GetVolume() +
1928                   GetVolumeSeparator(wxPATH_DOS) +
1929                   GetPathSeparator(wxPATH_DOS);
1930     else
1931         pathOut = wxEmptyString;
1932
1933     wxArrayString dirs = GetDirs();
1934     dirs.Add(GetFullName());
1935
1936     wxString tmpPath;
1937
1938     size_t count = dirs.GetCount();
1939     for ( size_t i = 0; i < count; i++ )
1940     {
1941         const wxString& dir = dirs[i];
1942
1943         // We're using pathOut to collect the long-name path, but using a
1944         // temporary for appending the last path component which may be
1945         // short-name
1946         tmpPath = pathOut + dir;
1947
1948         // We must not process "." or ".." here as they would be (unexpectedly)
1949         // replaced by the corresponding directory names so just leave them
1950         // alone
1951         //
1952         // And we can't pass a drive and root dir to FindFirstFile (VZ: why?)
1953         if ( tmpPath.empty() || dir == '.' || dir == ".." ||
1954                 tmpPath.Last() == GetVolumeSeparator(wxPATH_DOS) )
1955         {
1956             tmpPath += wxFILE_SEP_PATH;
1957             pathOut = tmpPath;
1958             continue;
1959         }
1960
1961         hFind = ::FindFirstFile(tmpPath.fn_str(), &findFileData);
1962         if (hFind == INVALID_HANDLE_VALUE)
1963         {
1964             // Error: most likely reason is that path doesn't exist, so
1965             // append any unprocessed parts and return
1966             for ( i += 1; i < count; i++ )
1967                 tmpPath += wxFILE_SEP_PATH + dirs[i];
1968
1969             return tmpPath;
1970         }
1971
1972         pathOut += findFileData.cFileName;
1973         if ( (i < (count-1)) )
1974             pathOut += wxFILE_SEP_PATH;
1975
1976         ::FindClose(hFind);
1977     }
1978 #else // !Win32
1979     pathOut = path;
1980 #endif // Win32/!Win32
1981
1982     return pathOut;
1983 }
1984
1985 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1986 {
1987     if (format == wxPATH_NATIVE)
1988     {
1989 #if defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__)
1990         format = wxPATH_DOS;
1991 #elif defined(__VMS)
1992         format = wxPATH_VMS;
1993 #else
1994         format = wxPATH_UNIX;
1995 #endif
1996     }
1997     return format;
1998 }
1999
2000 #ifdef wxHAS_FILESYSTEM_VOLUMES
2001
2002 /* static */
2003 wxString wxFileName::GetVolumeString(char drive, int flags)
2004 {
2005     wxASSERT_MSG( !(flags & ~wxPATH_GET_SEPARATOR), "invalid flag specified" );
2006
2007     wxString vol(drive);
2008     vol += wxFILE_SEP_DSK;
2009     if ( flags & wxPATH_GET_SEPARATOR )
2010         vol += wxFILE_SEP_PATH;
2011
2012     return vol;
2013 }
2014
2015 #endif // wxHAS_FILESYSTEM_VOLUMES
2016
2017 // ----------------------------------------------------------------------------
2018 // path splitting function
2019 // ----------------------------------------------------------------------------
2020
2021 /* static */
2022 void
2023 wxFileName::SplitVolume(const wxString& fullpathWithVolume,
2024                         wxString *pstrVolume,
2025                         wxString *pstrPath,
2026                         wxPathFormat format)
2027 {
2028     format = GetFormat(format);
2029
2030     wxString fullpath = fullpathWithVolume;
2031
2032     // special Windows UNC paths hack: transform \\share\path into share:path
2033     if ( IsUNCPath(fullpath, format) )
2034     {
2035         fullpath.erase(0, 2);
2036
2037         size_t posFirstSlash =
2038             fullpath.find_first_of(GetPathTerminators(format));
2039         if ( posFirstSlash != wxString::npos )
2040         {
2041             fullpath[posFirstSlash] = wxFILE_SEP_DSK;
2042
2043             // UNC paths are always absolute, right? (FIXME)
2044             fullpath.insert(posFirstSlash + 1, 1, wxFILE_SEP_PATH_DOS);
2045         }
2046     }
2047
2048     // We separate the volume here
2049     if ( format == wxPATH_DOS || format == wxPATH_VMS )
2050     {
2051         wxString sepVol = GetVolumeSeparator(format);
2052
2053         size_t posFirstColon = fullpath.find_first_of(sepVol);
2054         if ( posFirstColon != wxString::npos )
2055         {
2056             if ( pstrVolume )
2057             {
2058                 *pstrVolume = fullpath.Left(posFirstColon);
2059             }
2060
2061             // remove the volume name and the separator from the full path
2062             fullpath.erase(0, posFirstColon + sepVol.length());
2063         }
2064     }
2065
2066     if ( pstrPath )
2067         *pstrPath = fullpath;
2068 }
2069
2070 /* static */
2071 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
2072                            wxString *pstrVolume,
2073                            wxString *pstrPath,
2074                            wxString *pstrName,
2075                            wxString *pstrExt,
2076                            bool *hasExt,
2077                            wxPathFormat format)
2078 {
2079     format = GetFormat(format);
2080
2081     wxString fullpath;
2082     SplitVolume(fullpathWithVolume, pstrVolume, &fullpath, format);
2083
2084     // find the positions of the last dot and last path separator in the path
2085     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
2086     size_t posLastSlash = fullpath.find_last_of(GetPathTerminators(format));
2087
2088     // check whether this dot occurs at the very beginning of a path component
2089     if ( (posLastDot != wxString::npos) &&
2090          (posLastDot == 0 ||
2091             IsPathSeparator(fullpath[posLastDot - 1]) ||
2092             (format == wxPATH_VMS && fullpath[posLastDot - 1] == _T(']'))) )
2093     {
2094         // dot may be (and commonly -- at least under Unix -- is) the first
2095         // character of the filename, don't treat the entire filename as
2096         // extension in this case
2097         posLastDot = wxString::npos;
2098     }
2099
2100     // if we do have a dot and a slash, check that the dot is in the name part
2101     if ( (posLastDot != wxString::npos) &&
2102          (posLastSlash != wxString::npos) &&
2103          (posLastDot < posLastSlash) )
2104     {
2105         // the dot is part of the path, not the start of the extension
2106         posLastDot = wxString::npos;
2107     }
2108
2109     // now fill in the variables provided by user
2110     if ( pstrPath )
2111     {
2112         if ( posLastSlash == wxString::npos )
2113         {
2114             // no path at all
2115             pstrPath->Empty();
2116         }
2117         else
2118         {
2119             // take everything up to the path separator but take care to make
2120             // the path equal to something like '/', not empty, for the files
2121             // immediately under root directory
2122             size_t len = posLastSlash;
2123
2124             // this rule does not apply to mac since we do not start with colons (sep)
2125             // except for relative paths
2126             if ( !len && format != wxPATH_MAC)
2127                 len++;
2128
2129             *pstrPath = fullpath.Left(len);
2130
2131             // special VMS hack: remove the initial bracket
2132             if ( format == wxPATH_VMS )
2133             {
2134                 if ( (*pstrPath)[0u] == _T('[') )
2135                     pstrPath->erase(0, 1);
2136             }
2137         }
2138     }
2139
2140     if ( pstrName )
2141     {
2142         // take all characters starting from the one after the last slash and
2143         // up to, but excluding, the last dot
2144         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
2145         size_t count;
2146         if ( posLastDot == wxString::npos )
2147         {
2148             // take all until the end
2149             count = wxString::npos;
2150         }
2151         else if ( posLastSlash == wxString::npos )
2152         {
2153             count = posLastDot;
2154         }
2155         else // have both dot and slash
2156         {
2157             count = posLastDot - posLastSlash - 1;
2158         }
2159
2160         *pstrName = fullpath.Mid(nStart, count);
2161     }
2162
2163     // finally deal with the extension here: we have an added complication that
2164     // extension may be empty (but present) as in "foo." where trailing dot
2165     // indicates the empty extension at the end -- and hence we must remember
2166     // that we have it independently of pstrExt
2167     if ( posLastDot == wxString::npos )
2168     {
2169         // no extension
2170         if ( pstrExt )
2171             pstrExt->clear();
2172         if ( hasExt )
2173             *hasExt = false;
2174     }
2175     else
2176     {
2177         // take everything after the dot
2178         if ( pstrExt )
2179             *pstrExt = fullpath.Mid(posLastDot + 1);
2180         if ( hasExt )
2181             *hasExt = true;
2182     }
2183 }
2184
2185 /* static */
2186 void wxFileName::SplitPath(const wxString& fullpath,
2187                            wxString *path,
2188                            wxString *name,
2189                            wxString *ext,
2190                            wxPathFormat format)
2191 {
2192     wxString volume;
2193     SplitPath(fullpath, &volume, path, name, ext, format);
2194
2195     if ( path )
2196     {
2197         path->Prepend(wxGetVolumeString(volume, format));
2198     }
2199 }
2200
2201 // ----------------------------------------------------------------------------
2202 // time functions
2203 // ----------------------------------------------------------------------------
2204
2205 #if wxUSE_DATETIME
2206
2207 bool wxFileName::SetTimes(const wxDateTime *dtAccess,
2208                           const wxDateTime *dtMod,
2209                           const wxDateTime *dtCreate)
2210 {
2211 #if defined(__WIN32__)
2212     FILETIME ftAccess, ftCreate, ftWrite;
2213
2214     if ( dtCreate )
2215         ConvertWxToFileTime(&ftCreate, *dtCreate);
2216     if ( dtAccess )
2217         ConvertWxToFileTime(&ftAccess, *dtAccess);
2218     if ( dtMod )
2219         ConvertWxToFileTime(&ftWrite, *dtMod);
2220
2221     wxString path;
2222     int flags;
2223     if ( IsDir() )
2224     {
2225         if ( wxGetOsVersion() == wxOS_WINDOWS_9X )
2226         {
2227             wxLogError(_("Setting directory access times is not supported "
2228                          "under this OS version"));
2229             return false;
2230         }
2231
2232         path = GetPath();
2233         flags = FILE_FLAG_BACKUP_SEMANTICS;
2234     }
2235     else // file
2236     {
2237         path = GetFullPath();
2238         flags = 0;
2239     }
2240
2241     wxFileHandle fh(path, wxFileHandle::Write, flags);
2242     if ( fh.IsOk() )
2243     {
2244         if ( ::SetFileTime(fh,
2245                            dtCreate ? &ftCreate : NULL,
2246                            dtAccess ? &ftAccess : NULL,
2247                            dtMod ? &ftWrite : NULL) )
2248         {
2249             return true;
2250         }
2251     }
2252 #elif defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
2253     wxUnusedVar(dtCreate);
2254
2255     if ( !dtAccess && !dtMod )
2256     {
2257         // can't modify the creation time anyhow, don't try
2258         return true;
2259     }
2260
2261     // if dtAccess or dtMod is not specified, use the other one (which must be
2262     // non NULL because of the test above) for both times
2263     utimbuf utm;
2264     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
2265     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
2266     if ( utime(GetFullPath().fn_str(), &utm) == 0 )
2267     {
2268         return true;
2269     }
2270 #else // other platform
2271     wxUnusedVar(dtAccess);
2272     wxUnusedVar(dtMod);
2273     wxUnusedVar(dtCreate);
2274 #endif // platforms
2275
2276     wxLogSysError(_("Failed to modify file times for '%s'"),
2277                   GetFullPath().c_str());
2278
2279     return false;
2280 }
2281
2282 bool wxFileName::Touch()
2283 {
2284 #if defined(__UNIX_LIKE__)
2285     // under Unix touching file is simple: just pass NULL to utime()
2286     if ( utime(GetFullPath().fn_str(), NULL) == 0 )
2287     {
2288         return true;
2289     }
2290
2291     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
2292
2293     return false;
2294 #else // other platform
2295     wxDateTime dtNow = wxDateTime::Now();
2296
2297     return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
2298 #endif // platforms
2299 }
2300
2301 bool wxFileName::GetTimes(wxDateTime *dtAccess,
2302                           wxDateTime *dtMod,
2303                           wxDateTime *dtCreate) const
2304 {
2305 #if defined(__WIN32__)
2306     // we must use different methods for the files and directories under
2307     // Windows as CreateFile(GENERIC_READ) doesn't work for the directories and
2308     // CreateFile(FILE_FLAG_BACKUP_SEMANTICS) works -- but only under NT and
2309     // not 9x
2310     bool ok;
2311     FILETIME ftAccess, ftCreate, ftWrite;
2312     if ( IsDir() )
2313     {
2314         // implemented in msw/dir.cpp
2315         extern bool wxGetDirectoryTimes(const wxString& dirname,
2316                                         FILETIME *, FILETIME *, FILETIME *);
2317
2318         // we should pass the path without the trailing separator to
2319         // wxGetDirectoryTimes()
2320         ok = wxGetDirectoryTimes(GetPath(wxPATH_GET_VOLUME),
2321                                  &ftAccess, &ftCreate, &ftWrite);
2322     }
2323     else // file
2324     {
2325         wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
2326         if ( fh.IsOk() )
2327         {
2328             ok = ::GetFileTime(fh,
2329                                dtCreate ? &ftCreate : NULL,
2330                                dtAccess ? &ftAccess : NULL,
2331                                dtMod ? &ftWrite : NULL) != 0;
2332         }
2333         else
2334         {
2335             ok = false;
2336         }
2337     }
2338
2339     if ( ok )
2340     {
2341         if ( dtCreate )
2342             ConvertFileTimeToWx(dtCreate, ftCreate);
2343         if ( dtAccess )
2344             ConvertFileTimeToWx(dtAccess, ftAccess);
2345         if ( dtMod )
2346             ConvertFileTimeToWx(dtMod, ftWrite);
2347
2348         return true;
2349     }
2350 #elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || defined(__OS2__) || (defined(__DOS__) && defined(__WATCOMC__))
2351     // no need to test for IsDir() here
2352     wxStructStat stBuf;
2353     if ( wxStat( GetFullPath().c_str(), &stBuf) == 0 )
2354     {
2355         if ( dtAccess )
2356             dtAccess->Set(stBuf.st_atime);
2357         if ( dtMod )
2358             dtMod->Set(stBuf.st_mtime);
2359         if ( dtCreate )
2360             dtCreate->Set(stBuf.st_ctime);
2361
2362         return true;
2363     }
2364 #else // other platform
2365     wxUnusedVar(dtAccess);
2366     wxUnusedVar(dtMod);
2367     wxUnusedVar(dtCreate);
2368 #endif // platforms
2369
2370     wxLogSysError(_("Failed to retrieve file times for '%s'"),
2371                   GetFullPath().c_str());
2372
2373     return false;
2374 }
2375
2376 #endif // wxUSE_DATETIME
2377
2378
2379 // ----------------------------------------------------------------------------
2380 // file size functions
2381 // ----------------------------------------------------------------------------
2382
2383 #if wxUSE_LONGLONG
2384
2385 /* static */
2386 wxULongLong wxFileName::GetSize(const wxString &filename)
2387 {
2388     if (!wxFileExists(filename))
2389         return wxInvalidSize;
2390
2391 #if defined(__WXPALMOS__)
2392     // TODO
2393     return wxInvalidSize;
2394 #elif defined(__WIN32__)
2395     wxFileHandle f(filename, wxFileHandle::Read);
2396     if (!f.IsOk())
2397         return wxInvalidSize;
2398
2399     DWORD lpFileSizeHigh;
2400     DWORD ret = GetFileSize(f, &lpFileSizeHigh);
2401     if ( ret == INVALID_FILE_SIZE && ::GetLastError() != NO_ERROR )
2402         return wxInvalidSize;
2403
2404     return wxULongLong(lpFileSizeHigh, ret);
2405 #else // ! __WIN32__
2406     wxStructStat st;
2407 #ifndef wxNEED_WX_UNISTD_H
2408     if (wxStat( filename.fn_str() , &st) != 0)
2409 #else
2410     if (wxStat( filename, &st) != 0)
2411 #endif
2412         return wxInvalidSize;
2413     return wxULongLong(st.st_size);
2414 #endif
2415 }
2416
2417 /* static */
2418 wxString wxFileName::GetHumanReadableSize(const wxULongLong &bs,
2419                                           const wxString &nullsize,
2420                                           int precision)
2421 {
2422     static const double KILOBYTESIZE = 1024.0;
2423     static const double MEGABYTESIZE = 1024.0*KILOBYTESIZE;
2424     static const double GIGABYTESIZE = 1024.0*MEGABYTESIZE;
2425     static const double TERABYTESIZE = 1024.0*GIGABYTESIZE;
2426
2427     if (bs == 0 || bs == wxInvalidSize)
2428         return nullsize;
2429
2430     double bytesize = bs.ToDouble();
2431     if (bytesize < KILOBYTESIZE)
2432         return wxString::Format(_("%s B"), bs.ToString().c_str());
2433     if (bytesize < MEGABYTESIZE)
2434         return wxString::Format(_("%.*f kB"), precision, bytesize/KILOBYTESIZE);
2435     if (bytesize < GIGABYTESIZE)
2436         return wxString::Format(_("%.*f MB"), precision, bytesize/MEGABYTESIZE);
2437     if (bytesize < TERABYTESIZE)
2438         return wxString::Format(_("%.*f GB"), precision, bytesize/GIGABYTESIZE);
2439
2440     return wxString::Format(_("%.*f TB"), precision, bytesize/TERABYTESIZE);
2441 }
2442
2443 wxULongLong wxFileName::GetSize() const
2444 {
2445     return GetSize(GetFullPath());
2446 }
2447
2448 wxString wxFileName::GetHumanReadableSize(const wxString &failmsg, int precision) const
2449 {
2450     return GetHumanReadableSize(GetSize(), failmsg, precision);
2451 }
2452
2453 #endif // wxUSE_LONGLONG
2454
2455 // ----------------------------------------------------------------------------
2456 // Mac-specific functions
2457 // ----------------------------------------------------------------------------
2458
2459 #if defined( __WXOSX_MAC__ ) && wxOSX_USE_CARBON
2460
2461 namespace
2462 {
2463
2464 class MacDefaultExtensionRecord
2465 {
2466 public:
2467     MacDefaultExtensionRecord()
2468     {
2469         m_type =
2470         m_creator = 0 ;
2471     }
2472
2473     // default copy ctor, assignment operator and dtor are ok
2474
2475     MacDefaultExtensionRecord(const wxString& ext, OSType type, OSType creator)
2476         : m_ext(ext)
2477     {
2478         m_type = type;
2479         m_creator = creator;
2480     }
2481
2482     wxString m_ext;
2483     OSType m_type;
2484     OSType m_creator;
2485 };
2486
2487 WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray);
2488
2489 bool gMacDefaultExtensionsInited = false;
2490
2491 #include "wx/arrimpl.cpp"
2492
2493 WX_DEFINE_EXPORTED_OBJARRAY(MacDefaultExtensionArray);
2494
2495 MacDefaultExtensionArray gMacDefaultExtensions;
2496
2497 // load the default extensions
2498 const MacDefaultExtensionRecord gDefaults[] =
2499 {
2500     MacDefaultExtensionRecord( "txt", 'TEXT', 'ttxt' ),
2501     MacDefaultExtensionRecord( "tif", 'TIFF', '****' ),
2502     MacDefaultExtensionRecord( "jpg", 'JPEG', '****' ),
2503 };
2504
2505 void MacEnsureDefaultExtensionsLoaded()
2506 {
2507     if ( !gMacDefaultExtensionsInited )
2508     {
2509         // we could load the pc exchange prefs here too
2510         for ( size_t i = 0 ; i < WXSIZEOF( gDefaults ) ; ++i )
2511         {
2512             gMacDefaultExtensions.Add( gDefaults[i] ) ;
2513         }
2514         gMacDefaultExtensionsInited = true;
2515     }
2516 }
2517
2518 } // anonymous namespace
2519
2520 bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
2521 {
2522     FSRef fsRef ;
2523     FSCatalogInfo catInfo;
2524     FileInfo *finfo ;
2525
2526     if ( wxMacPathToFSRef( GetFullPath() , &fsRef ) == noErr )
2527     {
2528         if ( FSGetCatalogInfo (&fsRef, kFSCatInfoFinderInfo, &catInfo, NULL, NULL, NULL) == noErr )
2529         {
2530             finfo = (FileInfo*)&catInfo.finderInfo;
2531             finfo->fileType = type ;
2532             finfo->fileCreator = creator ;
2533             FSSetCatalogInfo( &fsRef, kFSCatInfoFinderInfo, &catInfo ) ;
2534             return true ;
2535         }
2536     }
2537     return false ;
2538 }
2539
2540 bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator )
2541 {
2542     FSRef fsRef ;
2543     FSCatalogInfo catInfo;
2544     FileInfo *finfo ;
2545
2546     if ( wxMacPathToFSRef( GetFullPath() , &fsRef ) == noErr )
2547     {
2548         if ( FSGetCatalogInfo (&fsRef, kFSCatInfoFinderInfo, &catInfo, NULL, NULL, NULL) == noErr )
2549         {
2550             finfo = (FileInfo*)&catInfo.finderInfo;
2551             *type = finfo->fileType ;
2552             *creator = finfo->fileCreator ;
2553             return true ;
2554         }
2555     }
2556     return false ;
2557 }
2558
2559 bool wxFileName::MacSetDefaultTypeAndCreator()
2560 {
2561     wxUint32 type , creator ;
2562     if ( wxFileName::MacFindDefaultTypeAndCreator(GetExt() , &type ,
2563       &creator ) )
2564     {
2565         return MacSetTypeAndCreator( type , creator ) ;
2566     }
2567     return false;
2568 }
2569
2570 bool wxFileName::MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator )
2571 {
2572   MacEnsureDefaultExtensionsLoaded() ;
2573   wxString extl = ext.Lower() ;
2574   for( int i = gMacDefaultExtensions.Count() - 1 ; i >= 0 ; --i )
2575   {
2576     if ( gMacDefaultExtensions.Item(i).m_ext == extl )
2577     {
2578       *type = gMacDefaultExtensions.Item(i).m_type ;
2579       *creator = gMacDefaultExtensions.Item(i).m_creator ;
2580       return true ;
2581     }
2582   }
2583   return false ;
2584 }
2585
2586 void wxFileName::MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator )
2587 {
2588   MacEnsureDefaultExtensionsLoaded();
2589   MacDefaultExtensionRecord rec(ext.Lower(), type, creator);
2590   gMacDefaultExtensions.Add( rec );
2591 }
2592
2593 #endif // defined( __WXOSX_MAC__ ) && wxOSX_USE_CARBON