X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/844f90fba68fc9fbd3e839825d406839ee9fb9fb..f47db8f0676be7807693de8bc38c4851c37f56a2:/src/common/filename.cpp diff --git a/src/common/filename.cpp b/src/common/filename.cpp index 51100b0829..38f20fee49 100644 --- a/src/common/filename.cpp +++ b/src/common/filename.cpp @@ -38,12 +38,117 @@ #include "wx/config.h" // for wxExpandEnvVars #include "wx/utils.h" +#if wxUSE_DYNLIB_CLASS + #include "wx/dynlib.h" +#endif + +// For GetShort/LongPathName +#ifdef __WIN32__ + #include + + #include "wx/msw/winundef.h" +#endif + +// utime() is POSIX so should normally be available on all Unices +#ifdef __UNIX_LIKE__ + #include + #include + #include + #include +#endif + +// ---------------------------------------------------------------------------- +// private classes +// ---------------------------------------------------------------------------- + +// small helper class which opens and closes the file - we use it just to get +// a file handle for the given file name to pass it to some Win32 API function +#ifdef __WIN32__ + +class wxFileHandle +{ +public: + wxFileHandle(const wxString& filename) + { + m_hFile = ::CreateFile + ( + filename, // name + GENERIC_READ, // access mask + 0, // no sharing + NULL, // no secutity attr + OPEN_EXISTING, // creation disposition + 0, // no flags + NULL // no template file + ); + + if ( m_hFile == INVALID_HANDLE_VALUE ) + { + wxLogSysError(_("Failed to open '%s' for reading"), + filename.c_str()); + } + } + + ~wxFileHandle() + { + if ( m_hFile != INVALID_HANDLE_VALUE ) + { + if ( !::CloseHandle(m_hFile) ) + { + wxLogSysError(_("Failed to close file handle")); + } + } + } + + // return TRUE only if the file could be opened successfully + bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; } + + // get the handle + operator HANDLE() const { return m_hFile; } + +private: + HANDLE m_hFile; +}; + +#endif // __WIN32__ + // ---------------------------------------------------------------------------- -// constants +// private functions // ---------------------------------------------------------------------------- -// the character separating the extension from the base name -#define EXT_SEP _T('.') +#ifdef __WIN32__ + +// convert between wxDateTime and FILETIME which is a 64-bit value representing +// the number of 100-nanosecond intervals since January 1, 1601. + +// the number of milliseconds between the Unix Epoch (January 1, 1970) and the +// FILETIME reference point (January 1, 1601) +static const wxLongLong FILETIME_EPOCH_OFFSET = wxLongLong(0xa97, 0x30b66800); + +static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft) +{ + wxLongLong ll(ft.dwHighDateTime, ft.dwLowDateTime); + + // convert 100ns to ms + ll /= 10000; + + // move it to our Epoch + ll -= FILETIME_EPOCH_OFFSET; + + *dt = wxDateTime(ll); +} + +static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt) +{ + // do the reverse of ConvertFileTimeToWx() + wxLongLong ll = dt.GetValue(); + ll *= 10000; + ll += FILETIME_EPOCH_OFFSET; + + ft->dwHighDateTime = ll.GetHi(); + ft->dwLowDateTime = ll.GetLo(); +} + +#endif // __WIN32__ // ============================================================================ // implementation @@ -67,18 +172,18 @@ void wxFileName::Assign( const wxString& path, { wxStringTokenizer tn(path, GetPathSeparators(format), wxTOKEN_RET_EMPTY_ALL); - bool first = TRUE; + int i = 0; m_dirs.Clear(); while ( tn.HasMoreTokens() ) { wxString token = tn.GetNextToken(); - // If the path starts with a slash, we need the first - // dir entry to be an empty for later reassembly. - if (first || !token.IsEmpty()) + // If the path starts with a slash (or two for a network path), + // we need the first dir entry to be an empty for later reassembly. + if ((i < 2) || !token.IsEmpty()) m_dirs.Add( token ); - first = FALSE; + i ++; } m_ext = ext; @@ -89,7 +194,7 @@ void wxFileName::Assign(const wxString& fullpath, wxPathFormat format) { wxString path, name, ext; - wxSplitPath(fullpath, &path, &name, &ext); + SplitPath(fullpath, &path, &name, &ext, format); Assign(path, name, ext, format); } @@ -99,7 +204,7 @@ void wxFileName::Assign(const wxString& path, wxPathFormat format) { wxString name, ext; - wxSplitPath(fullname, NULL /* no path */, &name, &ext); + SplitPath(fullname, NULL /* no path */, &name, &ext, format); Assign(path, name, ext, format); } @@ -201,14 +306,47 @@ void wxFileName::AssignTempFileName( const wxString &prefix ) // directory operations // ---------------------------------------------------------------------------- -bool wxFileName::Mkdir( int perm ) +bool wxFileName::Mkdir( int perm, bool full ) { - return wxFileName::Mkdir( GetFullPath(), perm ); + return wxFileName::Mkdir( GetFullPath(), perm, full ); } -bool wxFileName::Mkdir( const wxString &dir, int perm ) +bool wxFileName::Mkdir( const wxString &dir, int perm, bool full ) { - return ::wxMkdir( dir, perm ); + if (full) + { + wxFileName filename(dir); + wxArrayString dirs = filename.GetDirs(); + dirs.Add(filename.GetName()); + + size_t count = dirs.GetCount(); + size_t i; + wxString currPath; + int noErrors = 0; + for ( i = 0; i < count; i++ ) + { + currPath += dirs[i]; + + if (currPath.Last() == wxT(':')) + { + // Can't create a root directory so continue to next dir + currPath += wxFILE_SEP_PATH; + continue; + } + + if (!DirExists(currPath)) + if (!wxMkdir(currPath, perm)) + noErrors ++; + + if ( (i < (count-1)) ) + currPath += wxFILE_SEP_PATH; + } + + return (noErrors == 0); + + } + else + return ::wxMkdir( dir, perm ); } bool wxFileName::Rmdir() @@ -256,7 +394,7 @@ bool wxFileName::Normalize(wxPathNormalize flags, { curDir.AssignDir(wxGetUserHome(dir.c_str() + 1)); - dirs.Remove(0u); + dirs.RemoveAt(0u); } } } @@ -323,6 +461,13 @@ bool wxFileName::Normalize(wxPathNormalize flags, m_ext.MakeLower(); } +#if defined(__WXMSW__) && defined(__WIN32__) + if (flags & wxPATH_NORM_LONG) + { + Assign(GetLongPath()); + } +#endif + return TRUE; } @@ -365,9 +510,15 @@ bool wxFileName::IsAbsolute( wxPathFormat format ) { wxChar ch = m_dirs.IsEmpty() ? _T('\0') : m_dirs[0u][0u]; + // Hack to cope with e.g. c:\thing - need something better + wxChar driveSep = _T('\0'); + if (!m_dirs.IsEmpty() && m_dirs[0].Length() > 1) + driveSep = m_dirs[0u][1u]; + // the path is absolute if it starts with a path separator or, only for // Unix filenames, with "~" or "~user" return IsPathSeparator(ch, format) || + driveSep == _T(':') || (GetFormat(format) == wxPATH_UNIX && ch == _T('~') ); } @@ -379,7 +530,7 @@ wxString wxFileName::GetPathSeparators(wxPathFormat format) { case wxPATH_DOS: // accept both as native APIs do - seps = _T("/\\"); + seps << wxFILE_SEP_PATH_UNIX << wxFILE_SEP_PATH_DOS; break; default: @@ -387,11 +538,11 @@ wxString wxFileName::GetPathSeparators(wxPathFormat format) // fall through case wxPATH_UNIX: - seps = _T("/"); + seps = wxFILE_SEP_PATH_UNIX; break; case wxPATH_MAC: - seps = _T(":"); + seps = wxFILE_SEP_PATH_MAC; break; } @@ -408,6 +559,7 @@ bool wxFileName::IsWild( wxPathFormat format ) { // FIXME: this is probably false for Mac and this is surely wrong for most // of Unix shells (think about "[...]") + (void)format; return m_name.find_first_of(_T("*?")) != wxString::npos; } @@ -439,12 +591,17 @@ void wxFileName::RemoveDir( int pos ) // accessors // ---------------------------------------------------------------------------- +void wxFileName::SetFullName(const wxString& fullname) +{ + SplitPath(fullname, NULL /* no path */, &m_name, &m_ext); +} + wxString wxFileName::GetFullName() const { wxString fullname = m_name; if ( !m_ext.empty() ) { - fullname << EXT_SEP << m_ext; + fullname << wxFILE_SEP_EXT << m_ext; } return fullname; @@ -468,7 +625,184 @@ wxString wxFileName::GetPath( bool add_separator, wxPathFormat format ) const wxString wxFileName::GetFullPath( wxPathFormat format ) const { - return GetPathWithSep() + GetFullName(); + format = GetFormat( format ); + + wxString ret; + if (format == wxPATH_DOS) + { + for (size_t i = 0; i < m_dirs.GetCount(); i++) + { + ret += m_dirs[i]; + ret += '\\'; + } + } + else + if (format == wxPATH_UNIX) + { + for (size_t i = 0; i < m_dirs.GetCount(); i++) + { + ret += m_dirs[i]; + ret += '/'; + } + } + else + { + for (size_t i = 0; i < m_dirs.GetCount(); i++) + { + ret += m_dirs[i]; + ret += ':'; + } + } + + ret += m_name; + + if (!m_ext.IsEmpty()) + { + ret += '.'; + ret += m_ext; + } + + return ret; +} + +// Return the short form of the path (returns identity on non-Windows platforms) +wxString wxFileName::GetShortPath() const +{ +#if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__) + wxString path(GetFullPath()); + wxString pathOut; + DWORD sz = ::GetShortPathName(path, NULL, 0); + bool ok = sz != 0; + if ( ok ) + { + ok = ::GetShortPathName + ( + path, + pathOut.GetWriteBuf(sz), + sz + ) != 0; + pathOut.UngetWriteBuf(); + } + if (ok) + return pathOut; + + return path; +#else + return GetFullPath(); +#endif +} + +// Return the long form of the path (returns identity on non-Windows platforms) +wxString wxFileName::GetLongPath() const +{ +#if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__) + wxString path(GetFullPath()); + wxString pathOut; + bool success = FALSE; + + // VZ: this code was disabled, why? +#if 0 // wxUSE_DYNLIB_CLASS + typedef DWORD (*GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD); + + static bool s_triedToLoad = FALSE; + + if ( !s_triedToLoad ) + { + s_triedToLoad = TRUE; + wxDllType dllKernel = wxDllLoader::LoadLibrary(_T("kernel32")); + if ( dllKernel ) + { + // may succeed or fail depending on the Windows version + static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL; +#ifdef _UNICODE + s_pfnGetLongPathName = (GET_LONG_PATH_NAME) wxDllLoader::GetSymbol(dllKernel, _T("GetLongPathNameW")); +#else + s_pfnGetLongPathName = (GET_LONG_PATH_NAME) wxDllLoader::GetSymbol(dllKernel, _T("GetLongPathNameA")); +#endif + + wxDllLoader::UnloadLibrary(dllKernel); + + if ( s_pfnGetLongPathName ) + { + DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0); + bool ok = dwSize > 0; + + if ( ok ) + { + DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0); + ok = sz != 0; + if ( ok ) + { + ok = (*s_pfnGetLongPathName) + ( + path, + pathOut.GetWriteBuf(sz), + sz + ) != 0; + pathOut.UngetWriteBuf(); + + success = TRUE; + } + } + } + } + } + if (success) + return pathOut; +#endif // wxUSE_DYNLIB_CLASS + + if (!success) + { + // The OS didn't support GetLongPathName, or some other error. + // We need to call FindFirstFile on each component in turn. + + WIN32_FIND_DATA findFileData; + HANDLE hFind; + pathOut = wxEmptyString; + + wxArrayString dirs = GetDirs(); + dirs.Add(GetFullName()); + + size_t count = dirs.GetCount(); + size_t i; + wxString tmpPath; + + for ( i = 0; i < count; i++ ) + { + // We're using pathOut to collect the long-name path, + // but using a temporary for appending the last path component which may be short-name + tmpPath = pathOut + dirs[i]; + + if (tmpPath.Last() == wxT(':')) + { + // Can't pass a drive and root dir to FindFirstFile, + // so continue to next dir + tmpPath += wxFILE_SEP_PATH; + pathOut = tmpPath; + continue; + } + + hFind = ::FindFirstFile(tmpPath, &findFileData); + if (hFind == INVALID_HANDLE_VALUE) + { + // Error: return immediately with the original path + return path; + } + else + { + pathOut += findFileData.cFileName; + if ( (i < (count-1)) ) + pathOut += wxFILE_SEP_PATH; + + ::FindClose(hFind); + } + } + } + + return pathOut; +#else + return GetFullPath(); +#endif } wxPathFormat wxFileName::GetFormat( wxPathFormat format ) @@ -477,8 +811,8 @@ wxPathFormat wxFileName::GetFormat( wxPathFormat format ) { #if defined(__WXMSW__) || defined(__WXPM__) format = wxPATH_DOS; -#elif defined(__WXMAC__) - format = wxPATH_MAC; +#elif defined(__WXMAC__) && !defined(__DARWIN__) + format = wxPATH_MAC; #else format = wxPATH_UNIX; #endif @@ -486,3 +820,213 @@ wxPathFormat wxFileName::GetFormat( wxPathFormat format ) return format; } +// ---------------------------------------------------------------------------- +// path splitting function +// ---------------------------------------------------------------------------- + +void wxFileName::SplitPath(const wxString& fullpath, + wxString *pstrPath, + wxString *pstrName, + wxString *pstrExt, + wxPathFormat format) +{ + format = GetFormat(format); + + // find the positions of the last dot and last path separator in the path + size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT); + size_t posLastSlash = fullpath.find_last_of(GetPathSeparators(format)); + + if ( (posLastDot != wxString::npos) && (format == wxPATH_UNIX) ) + { + if ( (posLastDot == 0) || + (fullpath[posLastDot - 1] == wxFILE_SEP_PATH_UNIX) ) + { + // under Unix, dot may be (and commonly is) the first character of + // the filename, don't treat the entire filename as extension in + // this case + posLastDot = wxString::npos; + } + } + + // if we do have a dot and a slash, check that the dot is in the name part + if ( (posLastDot != wxString::npos) && + (posLastSlash != wxString::npos) && + (posLastDot < posLastSlash) ) + { + // the dot is part of the path, not the start of the extension + posLastDot = wxString::npos; + } + + // now fill in the variables provided by user + if ( pstrPath ) + { + if ( posLastSlash == wxString::npos ) + { + // no path at all + pstrPath->Empty(); + } + else + { + // take all until the separator + *pstrPath = fullpath.Left(posLastSlash); + } + } + + if ( pstrName ) + { + // take all characters starting from the one after the last slash and + // up to, but excluding, the last dot + size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1; + size_t count; + if ( posLastDot == wxString::npos ) + { + // take all until the end + count = wxString::npos; + } + else if ( posLastSlash == wxString::npos ) + { + count = posLastDot; + } + else // have both dot and slash + { + count = posLastDot - posLastSlash - 1; + } + + *pstrName = fullpath.Mid(nStart, count); + } + + if ( pstrExt ) + { + if ( posLastDot == wxString::npos ) + { + // no extension + pstrExt->Empty(); + } + else + { + // take everything after the dot + *pstrExt = fullpath.Mid(posLastDot + 1); + } + } +} + +// ---------------------------------------------------------------------------- +// time functions +// ---------------------------------------------------------------------------- + +bool wxFileName::SetTimes(const wxDateTime *dtCreate, + const wxDateTime *dtAccess, + const wxDateTime *dtMod) +{ +#if defined(__UNIX_LIKE__) + if ( !dtAccess && !dtMod ) + { + // can't modify the creation time anyhow, don't try + return TRUE; + } + + // if dtAccess or dtMod is not specified, use the other one (which must be + // non NULL because of the test above) for both times + utimbuf utm; + utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks(); + utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks(); + if ( utime(GetFullPath(), &utm) == 0 ) + { + return TRUE; + } +#elif defined(__WIN32__) + wxFileHandle fh(GetFullPath()); + if ( fh.IsOk() ) + { + FILETIME ftAccess, ftCreate, ftWrite; + + if ( dtCreate ) + ConvertWxToFileTime(&ftCreate, *dtCreate); + if ( dtAccess ) + ConvertWxToFileTime(&ftAccess, *dtAccess); + if ( dtMod ) + ConvertWxToFileTime(&ftWrite, *dtMod); + + if ( ::SetFileTime(fh, + dtCreate ? &ftCreate : NULL, + dtAccess ? &ftAccess : NULL, + dtMod ? &ftWrite : NULL) ) + { + return TRUE; + } + } +#else // other platform +#endif // platforms + + wxLogSysError(_("Failed to modify file times for '%s'"), + GetFullPath().c_str()); + + return FALSE; +} + +bool wxFileName::Touch() +{ +#if defined(__UNIX_LIKE__) + // under Unix touching file is simple: just pass NULL to utime() + if ( utime(GetFullPath(), NULL) == 0 ) + { + return TRUE; + } + + wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str()); + + return FALSE; +#else // other platform + wxDateTime dtNow = wxDateTime::Now(); + + return SetTimes(NULL /* don't change create time */, &dtNow, &dtNow); +#endif // platforms +} + +bool wxFileName::GetTimes(wxDateTime *dtAccess, + wxDateTime *dtMod, + wxDateTime *dtChange) const +{ +#if defined(__UNIX_LIKE__) + wxStructStat stBuf; + if ( wxStat(GetFullPath(), &stBuf) == 0 ) + { + if ( dtAccess ) + dtAccess->Set(stBuf.st_atime); + if ( dtMod ) + dtMod->Set(stBuf.st_mtime); + if ( dtChange ) + dtChange->Set(stBuf.st_ctime); + + return TRUE; + } +#elif defined(__WIN32__) + wxFileHandle fh(GetFullPath()); + if ( fh.IsOk() ) + { + FILETIME ftAccess, ftCreate, ftWrite; + + if ( ::GetFileTime(fh, + dtMod ? &ftCreate : NULL, + dtAccess ? &ftAccess : NULL, + dtChange ? &ftWrite : NULL) ) + { + if ( dtMod ) + ConvertFileTimeToWx(dtMod, ftCreate); + if ( dtAccess ) + ConvertFileTimeToWx(dtAccess, ftAccess); + if ( dtChange ) + ConvertFileTimeToWx(dtChange, ftWrite); + + return TRUE; + } + } +#else // other platform +#endif // platforms + + wxLogSysError(_("Failed to retrieve file times for '%s'"), + GetFullPath().c_str()); + + return FALSE; +} +