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 license
  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 specyfication
  51                  . separator between directory and subdirectory
  52                  ] between directory and file
  53  */
  54
  55 // ============================================================================
  56 // declarations
  57 // ============================================================================
  58
  59 // ----------------------------------------------------------------------------
  60 // headers
  61 // ----------------------------------------------------------------------------
  62
  63 #ifdef __GNUG__
  64 #pragma implementation "filename.h"
  65 #endif
  66
  67 // For compilers that support precompilation, includes "wx.h".
  68 #include "wx/wxprec.h"
  69
  70 #ifdef __BORLANDC__
  71 #pragma hdrstop
  72 #endif
  73
  74 #ifndef WX_PRECOMP
  75 #include "wx/intl.h"
  76 #include "wx/log.h"
  77 #include "wx/file.h"
  78 #endif
  79
  80 #include "wx/filename.h"
  81 #include "wx/tokenzr.h"
  82 #include "wx/config.h"          // for wxExpandEnvVars
  83 #include "wx/utils.h"
  84 #include "wx/file.h"
  85
  86 #if wxUSE_DYNAMIC_LOADER || wxUSE_DYNLIB_CLASS
  87 #include "wx/dynlib.h"
  88 #endif
  89
  90 // For GetShort/LongPathName
  91 #ifdef __WIN32__
  92 #include <windows.h>
  93 #include "wx/msw/winundef.h"
  94 #endif
  95
  96 // utime() is POSIX so should normally be available on all Unices
  97 #ifdef __UNIX_LIKE__
  98 #include <sys/types.h>
  99 #include <utime.h>
 100 #include <sys/stat.h>
 101 #include <unistd.h>
 102 #endif
 103
 104 #ifdef __MWERKS__
 105 #include <stat.h>
 106 #include <unistd.h>
 107 #include <unix.h>
 108 #endif
 109
 110 #ifdef __WATCOMC__
 111 #include <io.h>
 112 #include <sys/utime.h>
 113 #include <sys/stat.h>
 114 #endif
 115
 116 #ifdef __VISAGECPP__
 117 #ifndef MAX_PATH
 118 #define MAX_PATH 256
 119 #endif
 120 #endif
 121
 122 // ----------------------------------------------------------------------------
 123 // private classes
 124 // ----------------------------------------------------------------------------
 125
 126 // small helper class which opens and closes the file - we use it just to get
 127 // a file handle for the given file name to pass it to some Win32 API function
 128 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 129
 130 class wxFileHandle
 131 {
 132 public:
 133     wxFileHandle(const wxString& filename)
 134     {
 135         m_hFile = ::CreateFile
 136                     (
 137                      filename,          // name
 138                      GENERIC_READ,      // access mask
 139                      0,                 // no sharing
 140                      NULL,              // no secutity attr
 141                      OPEN_EXISTING,     // creation disposition
 142                      0,                 // no flags
 143                      NULL               // no template file
 144                     );
 145
 146         if ( m_hFile == INVALID_HANDLE_VALUE )
 147         {
 148             wxLogSysError(_("Failed to open '%s' for reading"),
 149                           filename.c_str());
 150         }
 151     }
 152
 153     ~wxFileHandle()
 154     {
 155         if ( m_hFile != INVALID_HANDLE_VALUE )
 156         {
 157             if ( !::CloseHandle(m_hFile) )
 158             {
 159                 wxLogSysError(_("Failed to close file handle"));
 160             }
 161         }
 162     }
 163
 164     // return TRUE only if the file could be opened successfully
 165     bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
 166
 167     // get the handle
 168     operator HANDLE() const { return m_hFile; }
 169
 170 private:
 171     HANDLE m_hFile;
 172 };
 173
 174 #endif // __WIN32__
 175
 176 // ----------------------------------------------------------------------------
 177 // private functions
 178 // ----------------------------------------------------------------------------
 179
 180 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 181
 182 // convert between wxDateTime and FILETIME which is a 64-bit value representing
 183 // the number of 100-nanosecond intervals since January 1, 1601.
 184
 185 // the number of milliseconds between the Unix Epoch (January 1, 1970) and the
 186 // FILETIME reference point (January 1, 1601)
 187 static const wxLongLong FILETIME_EPOCH_OFFSET = wxLongLong(0xa97, 0x30b66800);
 188
 189 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 190 {
 191     wxLongLong ll(ft.dwHighDateTime, ft.dwLowDateTime);
 192
 193     // convert 100ns to ms
 194     ll /= 10000;
 195
 196     // move it to our Epoch
 197     ll -= FILETIME_EPOCH_OFFSET;
 198
 199     *dt = wxDateTime(ll);
 200 }
 201
 202 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 203 {
 204     // do the reverse of ConvertFileTimeToWx()
 205     wxLongLong ll = dt.GetValue();
 206     ll *= 10000;
 207     ll += FILETIME_EPOCH_OFFSET;
 208
 209     ft->dwHighDateTime = ll.GetHi();
 210     ft->dwLowDateTime = ll.GetLo();
 211 }
 212
 213 #endif // __WIN32__
 214
 215 // ============================================================================
 216 // implementation
 217 // ============================================================================
 218
 219 // ----------------------------------------------------------------------------
 220 // wxFileName construction
 221 // ----------------------------------------------------------------------------
 222
 223 void wxFileName::Assign( const wxFileName &filepath )
 224 {
 225     m_volume = filepath.GetVolume();
 226     m_dirs = filepath.GetDirs();
 227     m_name = filepath.GetName();
 228     m_ext = filepath.GetExt();
 229     m_relative = filepath.IsRelative();
 230 }
 231
 232 void wxFileName::Assign(const wxString& volume,
 233                         const wxString& path,
 234                         const wxString& name,
 235                         const wxString& ext,
 236                         wxPathFormat format )
 237 {
 238     wxPathFormat my_format = GetFormat( format );
 239     wxString my_path = path;
 240
 241     m_dirs.Clear();
 242
 243     if (!my_path.empty())
 244     {
 245         // 1) Determine if the path is relative or absolute.
 246
 247         switch (my_format)
 248         {
 249             case wxPATH_MAC:
 250                 m_relative = ( my_path[0u] == wxT(':') );
 251                 // We then remove a leading ":". The reason is in our
 252                 // storage form for relative paths:
 253                 // ":dir:file.txt" actually means "./dir/file.txt" in
 254                 // DOS notation and should get stored as
 255                 // (relative) (dir) (file.txt)
 256                 // "::dir:file.txt" actually means "../dir/file.txt"
 257                 // stored as (relative) (..) (dir) (file.txt)
 258                 // This is important only for the Mac as an empty dir
 259                 // actually means <UP>, whereas under DOS, double
 260                 // slashes can be ignored: "\\\\" is the same as "\\".
 261                 if (m_relative)
 262                     my_path.Remove( 0, 1 );
 263                 break;
 264             case wxPATH_VMS:
 265                 // TODO: what is the relative path format here?
 266                 m_relative = FALSE;
 267                 break;
 268             case wxPATH_UNIX:
 269                 m_relative = ( my_path[0u] != wxT('/') );
 270                 break;
 271             case wxPATH_DOS:
 272                 m_relative = ( (my_path[0u] != wxT('/')) && (my_path[0u] != wxT('\\')) );
 273                 break;
 274             default:
 275                 wxFAIL_MSG( wxT("error") );
 276                 break;
 277         }
 278
 279         // 2) Break up the path into its members. If the original path
 280         //    was just "/" or "\\", m_dirs will be empty. We know from
 281         //    the m_relative field, if this means "nothing" or "root dir".
 282
 283         wxStringTokenizer tn( my_path, GetPathSeparators(my_format) );
 284
 285         while ( tn.HasMoreTokens() )
 286         {
 287             wxString token = tn.GetNextToken();
 288
 289             // Remove empty token under DOS and Unix, interpret them
 290             // as .. under Mac.
 291             if (token.empty())
 292             {
 293                 if (my_format == wxPATH_MAC)
 294                     m_dirs.Add( wxT("..") );
 295                 // else ignore
 296             }
 297             else
 298             {
 299                m_dirs.Add( token );
 300             }
 301         }
 302     }
 303
 304     m_volume = volume;
 305     m_ext = ext;
 306     m_name = name;
 307 }
 308
 309 void wxFileName::Assign(const wxString& fullpath,
 310                         wxPathFormat format)
 311 {
 312     wxString volume, path, name, ext;
 313     SplitPath(fullpath, &volume, &path, &name, &ext, format);
 314
 315     Assign(volume, path, name, ext, format);
 316 }
 317
 318 void wxFileName::Assign(const wxString& fullpathOrig,
 319                         const wxString& fullname,
 320                         wxPathFormat format)
 321 {
 322     // always recognize fullpath as directory, even if it doesn't end with a
 323     // slash
 324     wxString fullpath = fullpathOrig;
 325     if ( !wxEndsWithPathSeparator(fullpath) )
 326     {
 327         fullpath += GetPathSeparators(format)[0u];
 328     }
 329
 330     wxString volume, path, name, ext;
 331
 332     // do some consistency checks in debug mode: the name should be really just
 333     // the filename and the path should be really just a path
 334 #ifdef __WXDEBUG__
 335     wxString pathDummy, nameDummy, extDummy;
 336
 337     SplitPath(fullname, &pathDummy, &name, &ext, format);
 338
 339     wxASSERT_MSG( pathDummy.empty(),
 340                   _T("the file name shouldn't contain the path") );
 341
 342     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 343
 344     wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
 345                   _T("the path shouldn't contain file name nor extension") );
 346
 347 #else // !__WXDEBUG__
 348     SplitPath(fullname, NULL /* no path */, &name, &ext, format);
 349     SplitPath(fullpath, &volume, &path, NULL, NULL, format);
 350 #endif // __WXDEBUG__/!__WXDEBUG__
 351
 352     Assign(volume, path, name, ext, format);
 353 }
 354
 355 void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 356 {
 357     Assign(dir, _T(""), format);
 358 }
 359
 360 void wxFileName::Clear()
 361 {
 362     m_dirs.Clear();
 363
 364     m_volume =
 365     m_name =
 366     m_ext = wxEmptyString;
 367 }
 368
 369 /* static */
 370 wxFileName wxFileName::FileName(const wxString& file)
 371 {
 372     return wxFileName(file);
 373 }
 374
 375 /* static */
 376 wxFileName wxFileName::DirName(const wxString& dir)
 377 {
 378     wxFileName fn;
 379     fn.AssignDir(dir);
 380     return fn;
 381 }
 382
 383 // ----------------------------------------------------------------------------
 384 // existence tests
 385 // ----------------------------------------------------------------------------
 386
 387 bool wxFileName::FileExists()
 388 {
 389     return wxFileName::FileExists( GetFullPath() );
 390 }
 391
 392 bool wxFileName::FileExists( const wxString &file )
 393 {
 394     return ::wxFileExists( file );
 395 }
 396
 397 bool wxFileName::DirExists()
 398 {
 399     return wxFileName::DirExists( GetFullPath() );
 400 }
 401
 402 bool wxFileName::DirExists( const wxString &dir )
 403 {
 404     return ::wxDirExists( dir );
 405 }
 406
 407 // ----------------------------------------------------------------------------
 408 // CWD and HOME stuff
 409 // ----------------------------------------------------------------------------
 410
 411 void wxFileName::AssignCwd(const wxString& volume)
 412 {
 413     AssignDir(wxFileName::GetCwd(volume));
 414 }
 415
 416 /* static */
 417 wxString wxFileName::GetCwd(const wxString& volume)
 418 {
 419     // if we have the volume, we must get the current directory on this drive
 420     // and to do this we have to chdir to this volume - at least under Windows,
 421     // I don't know how to get the current drive on another volume elsewhere
 422     // (TODO)
 423     wxString cwdOld;
 424     if ( !volume.empty() )
 425     {
 426         cwdOld = wxGetCwd();
 427         SetCwd(volume + GetVolumeSeparator());
 428     }
 429
 430     wxString cwd = ::wxGetCwd();
 431
 432     if ( !volume.empty() )
 433     {
 434         SetCwd(cwdOld);
 435     }
 436
 437     return cwd;
 438 }
 439
 440 bool wxFileName::SetCwd()
 441 {
 442     return wxFileName::SetCwd( GetFullPath() );
 443 }
 444
 445 bool wxFileName::SetCwd( const wxString &cwd )
 446 {
 447     return ::wxSetWorkingDirectory( cwd );
 448 }
 449
 450 void wxFileName::AssignHomeDir()
 451 {
 452     AssignDir(wxFileName::GetHomeDir());
 453 }
 454
 455 wxString wxFileName::GetHomeDir()
 456 {
 457     return ::wxGetHomeDir();
 458 }
 459
 460 void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
 461 {
 462     wxString tempname = CreateTempFileName(prefix, fileTemp);
 463     if ( tempname.empty() )
 464     {
 465         // error, failed to get temp file name
 466         Clear();
 467     }
 468     else // ok
 469     {
 470         Assign(tempname);
 471     }
 472 }
 473
 474 /* static */
 475 wxString
 476 wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
 477 {
 478     wxString path, dir, name;
 479
 480     // use the directory specified by the prefix
 481     SplitPath(prefix, &dir, &name, NULL /* extension */);
 482
 483 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 484
 485 #ifdef __WIN32__
 486     if ( dir.empty() )
 487     {
 488         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
 489         {
 490             wxLogLastError(_T("GetTempPath"));
 491         }
 492
 493         if ( dir.empty() )
 494         {
 495             // GetTempFileName() fails if we pass it an empty string
 496             dir = _T('.');
 497         }
 498     }
 499
 500     if ( !::GetTempFileName(dir, name, 0, wxStringBuffer(path, MAX_PATH + 1)) )
 501     {
 502         wxLogLastError(_T("GetTempFileName"));
 503
 504         path.clear();
 505     }
 506 #else // Win16
 507     if ( !::GetTempFileName(NULL, prefix, 0, wxStringBuffer(path, 1025)) )
 508     {
 509         path.clear();
 510     }
 511 #endif // Win32/16
 512
 513 #elif defined(__WXPM__)
 514     // for now just create a file
 515     //
 516     // future enhancements can be to set some extended attributes for file
 517     // systems OS/2 supports that have them (HPFS, FAT32) and security
 518     // (HPFS386)
 519     static const wxChar *szMktempSuffix = wxT("XXX");
 520     path << dir << _T('/') << name << szMktempSuffix;
 521
 522     // Temporarily remove - MN
 523     #ifndef __WATCOMC__
 524         ::DosCreateDir(wxStringBuffer(path, MAX_PATH), NULL);
 525     #endif
 526
 527 #else // !Windows, !OS/2
 528     if ( dir.empty() )
 529     {
 530         dir = wxGetenv(_T("TMP"));
 531         if ( path.empty() )
 532         {
 533             dir = wxGetenv(_T("TEMP"));
 534         }
 535
 536         if ( dir.empty() )
 537         {
 538             // default
 539             #ifdef __DOS__
 540             dir = _T(".");
 541             #else
 542             dir = _T("/tmp");
 543             #endif
 544         }
 545     }
 546
 547     path = dir;
 548
 549     if ( !wxEndsWithPathSeparator(dir) &&
 550             (name.empty() || !wxIsPathSeparator(name[0u])) )
 551     {
 552         path += wxFILE_SEP_PATH;
 553     }
 554
 555     path += name;
 556
 557 #if defined(HAVE_MKSTEMP)
 558     // scratch space for mkstemp()
 559     path += _T("XXXXXX");
 560
 561     // can use the cast here because the length doesn't change and the string
 562     // is not shared
 563     int fdTemp = mkstemp((char *)path.mb_str());
 564     if ( fdTemp == -1 )
 565     {
 566         // this might be not necessary as mkstemp() on most systems should have
 567         // already done it but it doesn't hurt neither...
 568         path.clear();
 569     }
 570     else // mkstemp() succeeded
 571     {
 572         // avoid leaking the fd
 573         if ( fileTemp )
 574         {
 575             fileTemp->Attach(fdTemp);
 576         }
 577         else
 578         {
 579             close(fdTemp);
 580         }
 581     }
 582 #else // !HAVE_MKSTEMP
 583
 584 #ifdef HAVE_MKTEMP
 585     // same as above
 586     path += _T("XXXXXX");
 587
 588     if ( !mktemp((char *)path.mb_str()) )
 589     {
 590         path.clear();
 591     }
 592 #else // !HAVE_MKTEMP (includes __DOS__)
 593     // generate the unique file name ourselves
 594     #ifndef __DOS__
 595     path << (unsigned int)getpid();
 596     #endif
 597
 598     wxString pathTry;
 599
 600     static const size_t numTries = 1000;
 601     for ( size_t n = 0; n < numTries; n++ )
 602     {
 603         // 3 hex digits is enough for numTries == 1000 < 4096
 604         pathTry = path + wxString::Format(_T("%.03x"), n);
 605         if ( !wxFile::Exists(pathTry) )
 606         {
 607             break;
 608         }
 609
 610         pathTry.clear();
 611     }
 612
 613     path = pathTry;
 614 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 615
 616     if ( !path.empty() )
 617     {
 618     }
 619 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 620
 621 #endif // Windows/!Windows
 622
 623     if ( path.empty() )
 624     {
 625         wxLogSysError(_("Failed to create a temporary file name"));
 626     }
 627     else if ( fileTemp && !fileTemp->IsOpened() )
 628     {
 629         // open the file - of course, there is a race condition here, this is
 630         // why we always prefer using mkstemp()...
 631         //
 632         // NB: GetTempFileName() under Windows creates the file, so using
 633         //     write_excl there would fail
 634         if ( !fileTemp->Open(path,
 635 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 636                              wxFile::write,
 637 #else
 638                              wxFile::write_excl,
 639 #endif
 640                              wxS_IRUSR | wxS_IWUSR) )
 641         {
 642             // FIXME: If !ok here should we loop and try again with another
 643             //        file name?  That is the standard recourse if open(O_EXCL)
 644             //        fails, though of course it should be protected against
 645             //        possible infinite looping too.
 646
 647             wxLogError(_("Failed to open temporary file."));
 648
 649             path.clear();
 650         }
 651     }
 652
 653     return path;
 654 }
 655
 656 // ----------------------------------------------------------------------------
 657 // directory operations
 658 // ----------------------------------------------------------------------------
 659
 660 bool wxFileName::Mkdir( int perm, bool full )
 661 {
 662     return wxFileName::Mkdir( GetFullPath(), perm, full );
 663 }
 664
 665 bool wxFileName::Mkdir( const wxString &dir, int perm, bool full )
 666 {
 667     if (full)
 668     {
 669         wxFileName filename(dir);
 670         wxArrayString dirs = filename.GetDirs();
 671         dirs.Add(filename.GetName());
 672
 673         size_t count = dirs.GetCount();
 674         size_t i;
 675         wxString currPath;
 676         int noErrors = 0;
 677         for ( i = 0; i < count; i++ )
 678         {
 679             currPath += dirs[i];
 680
 681             if (currPath.Last() == wxT(':'))
 682             {
 683                 // Can't create a root directory so continue to next dir
 684                 currPath += wxFILE_SEP_PATH;
 685                 continue;
 686             }
 687
 688             if (!DirExists(currPath))
 689                 if (!wxMkdir(currPath, perm))
 690                     noErrors ++;
 691
 692             if ( (i < (count-1)) )
 693                 currPath += wxFILE_SEP_PATH;
 694         }
 695
 696         return (noErrors == 0);
 697
 698     }
 699     else
 700         return ::wxMkdir( dir, perm );
 701 }
 702
 703 bool wxFileName::Rmdir()
 704 {
 705     return wxFileName::Rmdir( GetFullPath() );
 706 }
 707
 708 bool wxFileName::Rmdir( const wxString &dir )
 709 {
 710     return ::wxRmdir( dir );
 711 }
 712
 713 // ----------------------------------------------------------------------------
 714 // path normalization
 715 // ----------------------------------------------------------------------------
 716
 717 bool wxFileName::Normalize(wxPathNormalize flags,
 718                            const wxString& cwd,
 719                            wxPathFormat format)
 720 {
 721     // the existing path components
 722     wxArrayString dirs = GetDirs();
 723
 724     // the path to prepend in front to make the path absolute
 725     wxFileName curDir;
 726
 727     format = GetFormat(format);
 728
 729     // make the path absolute
 730     if ( (flags & wxPATH_NORM_ABSOLUTE) && m_relative )
 731     {
 732         if ( cwd.empty() )
 733         {
 734             curDir.AssignCwd(GetVolume());
 735         }
 736         else // cwd provided
 737         {
 738             curDir.AssignDir(cwd);
 739         }
 740
 741 #if 0
 742         // the path may be not absolute because it doesn't have the volume name
 743         // but in this case we shouldn't modify the directory components of it
 744         // but just set the current volume
 745         if ( !HasVolume() && curDir.HasVolume() )
 746         {
 747             SetVolume(curDir.GetVolume());
 748
 749             if ( IsAbsolute() )
 750             {
 751                 // yes, it was the case - we don't need curDir then
 752                 curDir.Clear();
 753             }
 754         }
 755 #endif
 756         m_relative = FALSE;
 757     }
 758
 759     // handle ~ stuff under Unix only
 760     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
 761     {
 762         if ( !dirs.IsEmpty() )
 763         {
 764             wxString dir = dirs[0u];
 765             if ( !dir.empty() && dir[0u] == _T('~') )
 766             {
 767                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
 768
 769                 dirs.RemoveAt(0u);
 770             }
 771         }
 772     }
 773
 774     // transform relative path into abs one
 775     if ( curDir.IsOk() )
 776     {
 777         wxArrayString dirsNew = curDir.GetDirs();
 778         size_t count = dirs.GetCount();
 779         for ( size_t n = 0; n < count; n++ )
 780         {
 781             dirsNew.Add(dirs[n]);
 782         }
 783
 784         dirs = dirsNew;
 785     }
 786
 787     // now deal with ".", ".." and the rest
 788     m_dirs.Empty();
 789     size_t count = dirs.GetCount();
 790     for ( size_t n = 0; n < count; n++ )
 791     {
 792         wxString dir = dirs[n];
 793
 794         if ( flags & wxPATH_NORM_DOTS )
 795         {
 796             if ( dir == wxT(".") )
 797             {
 798                 // just ignore
 799                 continue;
 800             }
 801
 802             if ( dir == wxT("..") )
 803             {
 804                 if ( m_dirs.IsEmpty() )
 805                 {
 806                     wxLogError(_("The path '%s' contains too many \"..\"!"),
 807                                GetFullPath().c_str());
 808                     return FALSE;
 809                 }
 810
 811                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
 812                 continue;
 813             }
 814         }
 815
 816         if ( flags & wxPATH_NORM_ENV_VARS )
 817         {
 818             dir = wxExpandEnvVars(dir);
 819         }
 820
 821         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 822         {
 823             dir.MakeLower();
 824         }
 825
 826         m_dirs.Add(dir);
 827     }
 828
 829     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 830     {
 831         // VZ: expand env vars here too?
 832
 833         m_name.MakeLower();
 834         m_ext.MakeLower();
 835     }
 836
 837 #if defined(__WIN32__)
 838     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
 839     {
 840         Assign(GetLongPath());
 841     }
 842 #endif // Win32
 843
 844     return TRUE;
 845 }
 846
 847 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
 848 {
 849     wxFileName fnBase(pathBase, format);
 850
 851     // get cwd only once - small time saving
 852     wxString cwd = wxGetCwd();
 853     Normalize(wxPATH_NORM_ALL, cwd, format);
 854     fnBase.Normalize(wxPATH_NORM_ALL, cwd, format);
 855
 856     bool withCase = IsCaseSensitive(format);
 857
 858     // we can't do anything if the files live on different volumes
 859     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
 860     {
 861         // nothing done
 862         return FALSE;
 863     }
 864
 865     // same drive, so we don't need our volume
 866     m_volume.clear();
 867
 868     // remove common directories starting at the top
 869     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
 870                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
 871     {
 872         m_dirs.RemoveAt(0);
 873         fnBase.m_dirs.RemoveAt(0);
 874     }
 875
 876     // add as many ".." as needed
 877     size_t count = fnBase.m_dirs.GetCount();
 878     for ( size_t i = 0; i < count; i++ )
 879     {
 880         m_dirs.Insert(wxT(".."), 0u);
 881     }
 882
 883     m_relative = TRUE;
 884
 885     // we were modified
 886     return TRUE;
 887 }
 888
 889 // ----------------------------------------------------------------------------
 890 // filename kind tests
 891 // ----------------------------------------------------------------------------
 892
 893 bool wxFileName::SameAs(const wxFileName &filepath, wxPathFormat format)
 894 {
 895     wxFileName fn1 = *this,
 896                fn2 = filepath;
 897
 898     // get cwd only once - small time saving
 899     wxString cwd = wxGetCwd();
 900     fn1.Normalize(wxPATH_NORM_ALL, cwd, format);
 901     fn2.Normalize(wxPATH_NORM_ALL, cwd, format);
 902
 903     if ( fn1.GetFullPath() == fn2.GetFullPath() )
 904         return TRUE;
 905
 906     // TODO: compare inodes for Unix, this works even when filenames are
 907     //       different but files are the same (symlinks) (VZ)
 908
 909     return FALSE;
 910 }
 911
 912 /* static */
 913 bool wxFileName::IsCaseSensitive( wxPathFormat format )
 914 {
 915     // only Unix filenames are truely case-sensitive
 916     return GetFormat(format) == wxPATH_UNIX;
 917 }
 918
 919 /* static */
 920 wxString wxFileName::GetVolumeSeparator(wxPathFormat format)
 921 {
 922     wxString sepVol;
 923
 924     if ( (GetFormat(format) == wxPATH_DOS) ||
 925          (GetFormat(format) == wxPATH_VMS) )
 926     {
 927         sepVol = wxFILE_SEP_DSK;
 928     }
 929     //else: leave empty
 930
 931     return sepVol;
 932 }
 933
 934 /* static */
 935 wxString wxFileName::GetPathSeparators(wxPathFormat format)
 936 {
 937     wxString seps;
 938     switch ( GetFormat(format) )
 939     {
 940         case wxPATH_DOS:
 941             // accept both as native APIs do but put the native one first as
 942             // this is the one we use in GetFullPath()
 943             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
 944             break;
 945
 946         default:
 947             wxFAIL_MSG( _T("unknown wxPATH_XXX style") );
 948             // fall through
 949
 950         case wxPATH_UNIX:
 951             seps = wxFILE_SEP_PATH_UNIX;
 952             break;
 953
 954         case wxPATH_MAC:
 955             seps = wxFILE_SEP_PATH_MAC;
 956             break;
 957
 958         case wxPATH_VMS:
 959             seps = wxFILE_SEP_PATH_VMS;
 960             break;
 961     }
 962
 963     return seps;
 964 }
 965
 966 /* static */
 967 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
 968 {
 969     // wxString::Find() doesn't work as expected with NUL - it will always find
 970     // it, so it is almost surely a bug if this function is called with NUL arg
 971     wxASSERT_MSG( ch != _T('\0'), _T("shouldn't be called with NUL") );
 972
 973     return GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
 974 }
 975
 976 bool wxFileName::IsWild( wxPathFormat format )
 977 {
 978     // FIXME: this is probably false for Mac and this is surely wrong for most
 979     //        of Unix shells (think about "[...]")
 980     (void)format;
 981     return m_name.find_first_of(_T("*?")) != wxString::npos;
 982 }
 983
 984 // ----------------------------------------------------------------------------
 985 // path components manipulation
 986 // ----------------------------------------------------------------------------
 987
 988 void wxFileName::AppendDir( const wxString &dir )
 989 {
 990     m_dirs.Add( dir );
 991 }
 992
 993 void wxFileName::PrependDir( const wxString &dir )
 994 {
 995     m_dirs.Insert( dir, 0 );
 996 }
 997
 998 void wxFileName::InsertDir( int before, const wxString &dir )
 999 {
1000     m_dirs.Insert( dir, before );
1001 }
1002
1003 void wxFileName::RemoveDir( int pos )
1004 {
1005     m_dirs.Remove( (size_t)pos );
1006 }
1007
1008 // ----------------------------------------------------------------------------
1009 // accessors
1010 // ----------------------------------------------------------------------------
1011
1012 void wxFileName::SetFullName(const wxString& fullname)
1013 {
1014     SplitPath(fullname, NULL /* no path */, &m_name, &m_ext);
1015 }
1016
1017 wxString wxFileName::GetFullName() const
1018 {
1019     wxString fullname = m_name;
1020     if ( !m_ext.empty() )
1021     {
1022         fullname << wxFILE_SEP_EXT << m_ext;
1023     }
1024
1025     return fullname;
1026 }
1027
1028 wxString wxFileName::GetPath( bool add_separator, wxPathFormat format ) const
1029 {
1030     format = GetFormat( format );
1031
1032     wxString fullpath;
1033
1034     // the leading character
1035     if ( format == wxPATH_MAC && m_relative )
1036     {
1037          fullpath += wxFILE_SEP_PATH_MAC;
1038     }
1039     else if ( format == wxPATH_DOS )
1040     {
1041          if (!m_relative)
1042              fullpath += wxFILE_SEP_PATH_DOS;
1043     }
1044     else if ( format == wxPATH_UNIX )
1045     {
1046          if (!m_relative)
1047              fullpath += wxFILE_SEP_PATH_UNIX;
1048     }
1049
1050     // then concatenate all the path components using the path separator
1051     size_t dirCount = m_dirs.GetCount();
1052     if ( dirCount )
1053     {
1054         if ( format == wxPATH_VMS )
1055         {
1056             fullpath += wxT('[');
1057         }
1058
1059
1060         for ( size_t i = 0; i < dirCount; i++ )
1061         {
1062             // TODO: What to do with ".." under VMS
1063
1064             switch (format)
1065             {
1066                 case wxPATH_MAC:
1067                 {
1068                     if (m_dirs[i] == wxT("."))
1069                         break;
1070                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1071                          fullpath += m_dirs[i];
1072                     fullpath += wxT(':');
1073                     break;
1074                 }
1075                 case wxPATH_DOS:
1076                 {
1077                     fullpath += m_dirs[i];
1078                     fullpath += wxT('\\');
1079                     break;
1080                 }
1081                 case wxPATH_UNIX:
1082                 {
1083                     fullpath += m_dirs[i];
1084                     fullpath += wxT('/');
1085                     break;
1086                 }
1087                 case wxPATH_VMS:
1088                 {
1089                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1090                         fullpath += m_dirs[i];
1091                     if (i == dirCount-1)
1092                         fullpath += wxT(']');
1093                     else
1094                         fullpath += wxT('.');
1095                     break;
1096                 }
1097                 default:
1098                 {
1099                     wxFAIL_MSG( wxT("error") );
1100                 }
1101             }
1102         }
1103     }
1104
1105
1106
1107     return fullpath;
1108 }
1109
1110 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1111 {
1112     format = GetFormat(format);
1113
1114     wxString fullpath;
1115
1116     // first put the volume
1117     if ( !m_volume.empty() )
1118     {
1119         {
1120             // Special Windows UNC paths hack, part 2: undo what we did in
1121             // SplitPath() and make an UNC path if we have a drive which is not a
1122             // single letter (hopefully the network shares can't be one letter only
1123             // although I didn't find any authoritative docs on this)
1124             if ( format == wxPATH_DOS && m_volume.length() > 1 )
1125             {
1126                 fullpath << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << m_volume;
1127             }
1128             else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
1129             {
1130                 fullpath << m_volume << GetVolumeSeparator(format);
1131             }
1132             // else ignore
1133         }
1134     }
1135
1136     // the leading character
1137     if ( format == wxPATH_MAC && m_relative )
1138     {
1139          fullpath += wxFILE_SEP_PATH_MAC;
1140     }
1141     else if ( format == wxPATH_DOS )
1142     {
1143          if (!m_relative)
1144              fullpath += wxFILE_SEP_PATH_DOS;
1145     }
1146     else if ( format == wxPATH_UNIX )
1147     {
1148          if (!m_relative)
1149              fullpath += wxFILE_SEP_PATH_UNIX;
1150     }
1151
1152     // then concatenate all the path components using the path separator
1153     size_t dirCount = m_dirs.GetCount();
1154     if ( dirCount )
1155     {
1156         if ( format == wxPATH_VMS )
1157         {
1158             fullpath += wxT('[');
1159         }
1160
1161
1162         for ( size_t i = 0; i < dirCount; i++ )
1163         {
1164             // TODO: What to do with ".." under VMS
1165
1166             switch (format)
1167             {
1168                 case wxPATH_MAC:
1169                 {
1170                     if (m_dirs[i] == wxT("."))
1171                         break;
1172                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1173                          fullpath += m_dirs[i];
1174                     fullpath += wxT(':');
1175                     break;
1176                 }
1177                 case wxPATH_DOS:
1178                 {
1179                     fullpath += m_dirs[i];
1180                     fullpath += wxT('\\');
1181                     break;
1182                 }
1183                 case wxPATH_UNIX:
1184                 {
1185                     fullpath += m_dirs[i];
1186                     fullpath += wxT('/');
1187                     break;
1188                 }
1189                 case wxPATH_VMS:
1190                 {
1191                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1192                         fullpath += m_dirs[i];
1193                     if (i == dirCount-1)
1194                         fullpath += wxT(']');
1195                     else
1196                         fullpath += wxT('.');
1197                     break;
1198                 }
1199                 default:
1200                 {
1201                     wxFAIL_MSG( wxT("error") );
1202                 }
1203             }
1204         }
1205     }
1206
1207     // finally add the file name and extension
1208     fullpath += GetFullName();
1209
1210     return fullpath;
1211 }
1212
1213 // Return the short form of the path (returns identity on non-Windows platforms)
1214 wxString wxFileName::GetShortPath() const
1215 {
1216 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__)
1217     wxString path(GetFullPath());
1218     wxString pathOut;
1219     DWORD sz = ::GetShortPathName(path, NULL, 0);
1220     bool ok = sz != 0;
1221     if ( ok )
1222     {
1223         ok = ::GetShortPathName
1224                (
1225                 path,
1226                 pathOut.GetWriteBuf(sz),
1227                 sz
1228                ) != 0;
1229         pathOut.UngetWriteBuf();
1230     }
1231     if (ok)
1232         return pathOut;
1233
1234     return path;
1235 #else
1236     return GetFullPath();
1237 #endif
1238 }
1239
1240 // Return the long form of the path (returns identity on non-Windows platforms)
1241 wxString wxFileName::GetLongPath() const
1242 {
1243     wxString pathOut,
1244              path = GetFullPath();
1245
1246 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1247     bool success = FALSE;
1248
1249     // VZ: this code was disabled, why?
1250 #if 0 // wxUSE_DYNAMIC_LOADER
1251     typedef DWORD (*GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1252
1253     static bool s_triedToLoad = FALSE;
1254
1255     if ( !s_triedToLoad )
1256     {
1257         s_triedToLoad = TRUE;
1258         wxDllType dllKernel = wxDllLoader::LoadLibrary(_T("kernel32"));
1259         if ( dllKernel )
1260         {
1261             // may succeed or fail depending on the Windows version
1262             static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1263 #ifdef _UNICODE
1264             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) wxDllLoader::GetSymbol(dllKernel, _T("GetLongPathNameW"));
1265 #else
1266             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) wxDllLoader::GetSymbol(dllKernel, _T("GetLongPathNameA"));
1267 #endif
1268
1269             wxDllLoader::UnloadLibrary(dllKernel);
1270
1271             if ( s_pfnGetLongPathName )
1272             {
1273                 DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
1274                 bool ok = dwSize > 0;
1275
1276                 if ( ok )
1277                 {
1278                     DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
1279                     ok = sz != 0;
1280                     if ( ok )
1281                     {
1282                         ok = (*s_pfnGetLongPathName)
1283                                 (
1284                                 path,
1285                                 pathOut.GetWriteBuf(sz),
1286                                 sz
1287                                 ) != 0;
1288                         pathOut.UngetWriteBuf();
1289
1290                         success = TRUE;
1291                     }
1292                 }
1293             }
1294         }
1295     }
1296     if (success)
1297         return pathOut;
1298 #endif // wxUSE_DYNAMIC_LOADER
1299
1300     if (!success)
1301     {
1302         // The OS didn't support GetLongPathName, or some other error.
1303         // We need to call FindFirstFile on each component in turn.
1304
1305         WIN32_FIND_DATA findFileData;
1306         HANDLE hFind;
1307         pathOut = wxEmptyString;
1308
1309         wxArrayString dirs = GetDirs();
1310         dirs.Add(GetFullName());
1311
1312         wxString tmpPath;
1313
1314         size_t count = dirs.GetCount();
1315         for ( size_t i = 0; i < count; i++ )
1316         {
1317             // We're using pathOut to collect the long-name path, but using a
1318             // temporary for appending the last path component which may be
1319             // short-name
1320             tmpPath = pathOut + dirs[i];
1321
1322             if ( tmpPath.empty() )
1323                 continue;
1324
1325             if ( tmpPath.Last() == wxT(':') )
1326             {
1327                 // Can't pass a drive and root dir to FindFirstFile,
1328                 // so continue to next dir
1329                 tmpPath += wxFILE_SEP_PATH;
1330                 pathOut = tmpPath;
1331                 continue;
1332             }
1333
1334             hFind = ::FindFirstFile(tmpPath, &findFileData);
1335             if (hFind == INVALID_HANDLE_VALUE)
1336             {
1337                 // Error: return immediately with the original path
1338                 return path;
1339             }
1340
1341             pathOut += findFileData.cFileName;
1342             if ( (i < (count-1)) )
1343                 pathOut += wxFILE_SEP_PATH;
1344
1345             ::FindClose(hFind);
1346         }
1347     }
1348 #else // !Win32
1349     pathOut = path;
1350 #endif // Win32/!Win32
1351
1352     return pathOut;
1353 }
1354
1355 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1356 {
1357     if (format == wxPATH_NATIVE)
1358     {
1359 #if defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__)
1360         format = wxPATH_DOS;
1361 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1362         format = wxPATH_MAC;
1363 #elif defined(__VMS)
1364         format = wxPATH_VMS;
1365 #else
1366         format = wxPATH_UNIX;
1367 #endif
1368     }
1369     return format;
1370 }
1371
1372 // ----------------------------------------------------------------------------
1373 // path splitting function
1374 // ----------------------------------------------------------------------------
1375
1376 /* static */
1377 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
1378                            wxString *pstrVolume,
1379                            wxString *pstrPath,
1380                            wxString *pstrName,
1381                            wxString *pstrExt,
1382                            wxPathFormat format)
1383 {
1384     format = GetFormat(format);
1385
1386     wxString fullpath = fullpathWithVolume;
1387
1388     // under VMS the end of the path is ']', not the path separator used to
1389     // separate the components
1390     wxString sepPath = format == wxPATH_VMS ? wxString(_T(']'))
1391                                             : GetPathSeparators(format);
1392
1393     // special Windows UNC paths hack: transform \\share\path into share:path
1394     if ( format == wxPATH_DOS )
1395     {
1396         if ( fullpath.length() >= 4 &&
1397                 fullpath[0u] == wxFILE_SEP_PATH_DOS &&
1398                     fullpath[1u] == wxFILE_SEP_PATH_DOS )
1399         {
1400             fullpath.erase(0, 2);
1401
1402             size_t posFirstSlash = fullpath.find_first_of(sepPath);
1403             if ( posFirstSlash != wxString::npos )
1404             {
1405                 fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1406
1407                 // UNC paths are always absolute, right? (FIXME)
1408                 fullpath.insert(posFirstSlash + 1, wxFILE_SEP_PATH_DOS);
1409             }
1410         }
1411     }
1412
1413     // We separate the volume here
1414     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1415     {
1416         wxString sepVol = GetVolumeSeparator(format);
1417
1418         size_t posFirstColon = fullpath.find_first_of(sepVol);
1419         if ( posFirstColon != wxString::npos )
1420         {
1421             if ( pstrVolume )
1422             {
1423                 *pstrVolume = fullpath.Left(posFirstColon);
1424             }
1425
1426             // remove the volume name and the separator from the full path
1427             fullpath.erase(0, posFirstColon + sepVol.length());
1428         }
1429     }
1430
1431     // find the positions of the last dot and last path separator in the path
1432     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
1433     size_t posLastSlash = fullpath.find_last_of(sepPath);
1434
1435     if ( (posLastDot != wxString::npos) &&
1436             ((format == wxPATH_UNIX) || (format == wxPATH_VMS)) )
1437     {
1438         if ( (posLastDot == 0) ||
1439              (fullpath[posLastDot - 1] == sepPath[0u] ) )
1440         {
1441             // under Unix and VMS, dot may be (and commonly is) the first
1442             // character of the filename, don't treat the entire filename as
1443             // extension in this case
1444             posLastDot = wxString::npos;
1445         }
1446     }
1447
1448     // if we do have a dot and a slash, check that the dot is in the name part
1449     if ( (posLastDot != wxString::npos) &&
1450          (posLastSlash != wxString::npos) &&
1451          (posLastDot < posLastSlash) )
1452     {
1453         // the dot is part of the path, not the start of the extension
1454         posLastDot = wxString::npos;
1455     }
1456
1457     // now fill in the variables provided by user
1458     if ( pstrPath )
1459     {
1460         if ( posLastSlash == wxString::npos )
1461         {
1462             // no path at all
1463             pstrPath->Empty();
1464         }
1465         else
1466         {
1467             // take everything up to the path separator but take care to make
1468             // the path equal to something like '/', not empty, for the files
1469             // immediately under root directory
1470             size_t len = posLastSlash;
1471             if ( !len )
1472                 len++;
1473
1474             *pstrPath = fullpath.Left(len);
1475
1476             // special VMS hack: remove the initial bracket
1477             if ( format == wxPATH_VMS )
1478             {
1479                 if ( (*pstrPath)[0u] == _T('[') )
1480                     pstrPath->erase(0, 1);
1481             }
1482         }
1483     }
1484
1485     if ( pstrName )
1486     {
1487         // take all characters starting from the one after the last slash and
1488         // up to, but excluding, the last dot
1489         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
1490         size_t count;
1491         if ( posLastDot == wxString::npos )
1492         {
1493             // take all until the end
1494             count = wxString::npos;
1495         }
1496         else if ( posLastSlash == wxString::npos )
1497         {
1498             count = posLastDot;
1499         }
1500         else // have both dot and slash
1501         {
1502             count = posLastDot - posLastSlash - 1;
1503         }
1504
1505         *pstrName = fullpath.Mid(nStart, count);
1506     }
1507
1508     if ( pstrExt )
1509     {
1510         if ( posLastDot == wxString::npos )
1511         {
1512             // no extension
1513             pstrExt->Empty();
1514         }
1515         else
1516         {
1517             // take everything after the dot
1518             *pstrExt = fullpath.Mid(posLastDot + 1);
1519         }
1520     }
1521 }
1522
1523 /* static */
1524 void wxFileName::SplitPath(const wxString& fullpath,
1525                            wxString *path,
1526                            wxString *name,
1527                            wxString *ext,
1528                            wxPathFormat format)
1529 {
1530     wxString volume;
1531     SplitPath(fullpath, &volume, path, name, ext, format);
1532
1533     if ( path && !volume.empty() )
1534     {
1535         path->Prepend(volume + GetVolumeSeparator(format));
1536     }
1537 }
1538
1539 // ----------------------------------------------------------------------------
1540 // time functions
1541 // ----------------------------------------------------------------------------
1542
1543 bool wxFileName::SetTimes(const wxDateTime *dtCreate,
1544                           const wxDateTime *dtAccess,
1545                           const wxDateTime *dtMod)
1546 {
1547 #if defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
1548     if ( !dtAccess && !dtMod )
1549     {
1550         // can't modify the creation time anyhow, don't try
1551         return TRUE;
1552     }
1553
1554     // if dtAccess or dtMod is not specified, use the other one (which must be
1555     // non NULL because of the test above) for both times
1556     utimbuf utm;
1557     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
1558     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
1559     if ( utime(GetFullPath(), &utm) == 0 )
1560     {
1561         return TRUE;
1562     }
1563 #elif defined(__WIN32__)
1564     wxFileHandle fh(GetFullPath());
1565     if ( fh.IsOk() )
1566     {
1567         FILETIME ftAccess, ftCreate, ftWrite;
1568
1569         if ( dtCreate )
1570             ConvertWxToFileTime(&ftCreate, *dtCreate);
1571         if ( dtAccess )
1572             ConvertWxToFileTime(&ftAccess, *dtAccess);
1573         if ( dtMod )
1574             ConvertWxToFileTime(&ftWrite, *dtMod);
1575
1576         if ( ::SetFileTime(fh,
1577                            dtCreate ? &ftCreate : NULL,
1578                            dtAccess ? &ftAccess : NULL,
1579                            dtMod ? &ftWrite : NULL) )
1580         {
1581             return TRUE;
1582         }
1583     }
1584 #else // other platform
1585 #endif // platforms
1586
1587     wxLogSysError(_("Failed to modify file times for '%s'"),
1588                   GetFullPath().c_str());
1589
1590     return FALSE;
1591 }
1592
1593 bool wxFileName::Touch()
1594 {
1595 #if defined(__UNIX_LIKE__)
1596     // under Unix touching file is simple: just pass NULL to utime()
1597     if ( utime(GetFullPath(), NULL) == 0 )
1598     {
1599         return TRUE;
1600     }
1601
1602     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
1603
1604     return FALSE;
1605 #else // other platform
1606     wxDateTime dtNow = wxDateTime::Now();
1607
1608     return SetTimes(NULL /* don't change create time */, &dtNow, &dtNow);
1609 #endif // platforms
1610 }
1611
1612 bool wxFileName::GetTimes(wxDateTime *dtAccess,
1613                           wxDateTime *dtMod,
1614                           wxDateTime *dtChange) const
1615 {
1616 #if defined(__UNIX_LIKE__) || defined(__WXMAC__) || (defined(__DOS__) && defined(__WATCOMC__))
1617     wxStructStat stBuf;
1618     if ( wxStat(GetFullPath(), &stBuf) == 0 )
1619     {
1620         if ( dtAccess )
1621             dtAccess->Set(stBuf.st_atime);
1622         if ( dtMod )
1623             dtMod->Set(stBuf.st_mtime);
1624         if ( dtChange )
1625             dtChange->Set(stBuf.st_ctime);
1626
1627         return TRUE;
1628     }
1629 #elif defined(__WIN32__)
1630     wxFileHandle fh(GetFullPath());
1631     if ( fh.IsOk() )
1632     {
1633         FILETIME ftAccess, ftCreate, ftWrite;
1634
1635         if ( ::GetFileTime(fh,
1636                            dtMod ? &ftCreate : NULL,
1637                            dtAccess ? &ftAccess : NULL,
1638                            dtChange ? &ftWrite : NULL) )
1639         {
1640             if ( dtMod )
1641                 ConvertFileTimeToWx(dtMod, ftCreate);
1642             if ( dtAccess )
1643                 ConvertFileTimeToWx(dtAccess, ftAccess);
1644             if ( dtChange )
1645                 ConvertFileTimeToWx(dtChange, ftWrite);
1646
1647             return TRUE;
1648         }
1649     }
1650 #else // other platform
1651 #endif // platforms
1652
1653     wxLogSysError(_("Failed to retrieve file times for '%s'"),
1654                   GetFullPath().c_str());
1655
1656     return FALSE;
1657 }
1658