adding ContentScaleFactor support to dc - defaulting to 1.0

[wxWidgets.git] / src / common / filename.cpp

diff --git a/src/common/filename.cpp b/src/common/filename.cpp
index 49c5ed0f573c2d26042a1b6d484bcaf017bbf9fb..d6d68aeeb6c2a3d731d9675779d4829012edef9e 100644 (file)
--- a/src/common/filename.cpp
+++ b/src/common/filename.cpp
@@ -22,9 +22,18 @@
                 drive:\dir1\dir2\...\dirN\filename.ext where drive is a single
                 letter. "." and ".." as for Unix but no "~".
 
                 drive:\dir1\dir2\...\dirN\filename.ext where drive is a single
                 letter. "." and ".." as for Unix but no "~".
 

-                There are also UNC names of the form \\share\fullpath
+                There are also UNC names of the form \\share\fullpath and
+                MSW unique volume names of the form \\?\Volume{GUID}\fullpath.

 
 

-   wxPATH_MAC:  Mac OS 8/9 and Mac OS X under CodeWarrior 7 format, absolute file
+                The latter provide a uniform way to access a volume regardless of
+                its current mount point, i.e. you can change a volume's mount
+                point from D: to E:, or even remove it, and still be able to
+                access it through its unique volume name. More on the subject can
+                be found in MSDN's article "Naming a Volume" that is currently at
+                http://msdn.microsoft.com/en-us/library/aa365248(VS.85).aspx.
+
+
+   wxPATH_MAC:  Mac OS 8/9 only, not used any longer, absolute file

                 names have the form
                     volume:dir1:...:dirN:filename
                 and the relative file names are either
                 names have the form
                     volume:dir1:...:dirN:filename
                 and the relative file names are either


@@ -68,7 +77,7 @@
 #endif
 
 #ifndef WX_PRECOMP
 #endif
 
 #ifndef WX_PRECOMP

-    #ifdef __WXMSW__
+    #ifdef __WINDOWS__

         #include "wx/msw/wrapwin.h" // For GetShort/LongPathName
     #endif
     #include "wx/dynarray.h"
         #include "wx/msw/wrapwin.h" // For GetShort/LongPathName
     #endif
     #include "wx/dynarray.h"


@@ -89,8 +98,10 @@
     #include "wx/msw/gccpriv.h"
 #endif
 
     #include "wx/msw/gccpriv.h"
 #endif
 

-#ifdef __WXWINCE__
-#include "wx/msw/private.h"
+#ifdef __WINDOWS__
+    #include "wx/msw/private.h"
+    #include <shlobj.h>         // for CLSID_ShellLink
+    #include "wx/msw/missing.h"

 #endif
 
 #if defined(__WXMAC__)
 #endif
 
 #if defined(__WXMAC__)


@@ -109,19 +120,6 @@
 #include <unistd.h>
 #endif
 
 #include <unistd.h>
 #endif
 

-#ifdef __MWERKS__
-#ifdef __MACH__
-#include <sys/types.h>
-#include <utime.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#else
-#include <stat.h>
-#include <unistd.h>
-#include <unix.h>
-#endif
-#endif
-

 #ifdef __WATCOMC__
 #include <io.h>
 #include <sys/utime.h>
 #ifdef __WATCOMC__
 #include <io.h>
 #include <sys/utime.h>


@@ -139,18 +137,17 @@
 #define MAX_PATH _MAX_PATH
 #endif
 
 #define MAX_PATH _MAX_PATH
 #endif
 

+#ifndef S_ISREG
+    #define S_ISREG(mode) ((mode) & S_IFREG)
+#endif
+#ifndef S_ISDIR
+    #define S_ISDIR(mode) ((mode) & S_IFDIR)
+#endif

 
 #if wxUSE_LONGLONG
 extern const wxULongLong wxInvalidSize = (unsigned)-1;
 #endif // wxUSE_LONGLONG
 
 
 #if wxUSE_LONGLONG
 extern const wxULongLong wxInvalidSize = (unsigned)-1;
 #endif // wxUSE_LONGLONG
 

-#ifdef __WIN32__
-    // this define is missing from VC6 headers
-    #ifndef INVALID_FILE_ATTRIBUTES
-        #define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
-    #endif
-#endif // __WIN32__
-

 namespace
 {
 
 namespace
 {
 


@@ -179,7 +176,7 @@ public:
         // access time (see #10567)
         m_hFile = ::CreateFile
                     (
         // access time (see #10567)
         m_hFile = ::CreateFile
                     (

-                     filename.fn_str(),             // name
+                     filename.t_str(),             // name

                      mode == ReadAttr ? FILE_READ_ATTRIBUTES    // access mask
                                       : FILE_WRITE_ATTRIBUTES,
                      FILE_SHARE_READ |              // sharing mode
                      mode == ReadAttr ? FILE_READ_ATTRIBUTES    // access mask
                                       : FILE_WRITE_ATTRIBUTES,
                      FILE_SHARE_READ |              // sharing mode


@@ -296,7 +293,18 @@ static wxString wxGetVolumeString(const wxString& volume, wxPathFormat format)
         // although I didn't find any authoritative docs on this)
         if ( format == wxPATH_DOS && volume.length() > 1 )
         {
         // although I didn't find any authoritative docs on this)
         if ( format == wxPATH_DOS && volume.length() > 1 )
         {

-            path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
+            // We also have to check for Windows unique volume names here and
+            // return it with '\\?\' prepended to it
+            if ( wxFileName::IsMSWUniqueVolumeNamePath("\\\\?\\" + volume + "\\",
+                                                       format) )
+            {
+                path << "\\\\?\\" << volume;
+            }
+            else
+            {
+                // it must be a UNC path
+                path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
+            }

         }
         else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
         {
         }
         else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
         {


@@ -326,6 +334,63 @@ static bool IsUNCPath(const wxString& path, wxPathFormat format)
                             !IsDOSPathSep(path[2u]);
 }
 
                             !IsDOSPathSep(path[2u]);
 }
 

+#ifndef __WIN32__
+
+// Under Unix-ish systems (basically everything except Windows) we may work
+// either with the file itself or its target if it's a symbolic link and we
+// should dereference it, as determined by wxFileName::ShouldFollowLink() and
+// the absence of the wxFILE_EXISTS_NO_FOLLOW flag. StatAny() can be used to
+// stat the appropriate file with an extra twist that it also works when there
+// is no wxFileName object at all, as is the case in static methods.
+
+// Private implementation, don't call directly, use one of the overloads below.
+bool DoStatAny(wxStructStat& st, wxString path, bool dereference)
+{
+    // We need to remove any trailing slashes from the path because they could
+    // interfere with the symlink following decision: even if we use lstat(),
+    // it would still follow the symlink if we pass it a path with a slash at
+    // the end because the symlink resolution would happen while following the
+    // path and not for the last path element itself.
+
+    while ( wxEndsWithPathSeparator(path) )
+    {
+        const size_t posLast = path.length() - 1;
+        if ( !posLast )
+        {
+            // Don't turn "/" into empty string.
+            break;
+        }
+
+        path.erase(posLast);
+    }
+
+    int ret = dereference ? wxStat(path, &st) : wxLstat(path, &st);
+    return ret == 0;
+}
+
+// Overloads to use for a case when we don't have wxFileName object and when we
+// do have one.
+inline
+bool StatAny(wxStructStat& st, const wxString& path, int flags)
+{
+    return DoStatAny(st, path, !(flags & wxFILE_EXISTS_NO_FOLLOW));
+}
+
+inline
+bool StatAny(wxStructStat& st, const wxFileName& fn)
+{
+    return DoStatAny(st, fn.GetFullPath(), fn.ShouldFollowLink());
+}
+
+#endif // !__WIN32__
+
+// ----------------------------------------------------------------------------
+// private constants
+// ----------------------------------------------------------------------------
+
+// length of \\?\Volume{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}\ string
+static const size_t wxMSWUniqueVolumePrefixLength = 49;
+

 } // anonymous namespace
 
 // ============================================================================
 } // anonymous namespace
 
 // ============================================================================


@@ -344,6 +409,7 @@ void wxFileName::Assign( const wxFileName &filepath )
     m_ext = filepath.GetExt();
     m_relative = filepath.m_relative;
     m_hasExt = filepath.m_hasExt;
     m_ext = filepath.GetExt();
     m_relative = filepath.m_relative;
     m_hasExt = filepath.m_hasExt;

+    m_dontFollowLinks = filepath.m_dontFollowLinks;

 }
 
 void wxFileName::Assign(const wxString& volume,
 }
 
 void wxFileName::Assign(const wxString& volume,


@@ -542,17 +608,19 @@ void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 
 void wxFileName::Clear()
 {
 
 void wxFileName::Clear()
 {

-    m_dirs.Clear();
-
-    m_volume =
-    m_name =
-    m_ext = wxEmptyString;
+    m_dirs.clear();
+    m_volume.clear();
+    m_name.clear();
+    m_ext.clear();

 
     // we don't have any absolute path for now
     m_relative = true;
 
     // nor any extension
     m_hasExt = false;
 
     // we don't have any absolute path for now
     m_relative = true;
 
     // nor any extension
     m_hasExt = false;

+
+    // follow symlinks by default
+    m_dontFollowLinks = false;

 }
 
 /* static */
 }
 
 /* static */


@@ -573,96 +641,168 @@ wxFileName wxFileName::DirName(const wxString& dir, wxPathFormat format)
 // existence tests
 // ----------------------------------------------------------------------------
 
 // existence tests
 // ----------------------------------------------------------------------------
 

-bool wxFileName::FileExists() const
-{
-    return wxFileName::FileExists( GetFullPath() );
-}
-
-/* static */
-bool wxFileName::FileExists( const wxString &filePath )
+namespace

 {
 {

-#if defined(__WXPALMOS__)
-    return false;
-#elif defined(__WIN32__) && !defined(__WXMICROWIN__)
-    // we must use GetFileAttributes() instead of the ANSI C functions because
-    // it can cope with network (UNC) paths unlike them
-    DWORD ret = ::GetFileAttributes(filePath.fn_str());
-
-    return (ret != INVALID_FILE_ATTRIBUTES) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
-#else // !__WIN32__
-    #ifndef S_ISREG
-        #define S_ISREG(mode) ((mode) & S_IFREG)
-    #endif
-    wxStructStat st;
-#ifndef wxNEED_WX_UNISTD_H
-    return (wxStat( filePath.fn_str() , &st) == 0 && S_ISREG(st.st_mode))
-#ifdef __OS2__
-      || (errno == EACCES) // if access is denied something with that name
-                            // exists and is opened in exclusive mode.
-#endif
-      ;
-#else
-    return wxStat( filePath , &st) == 0 && S_ISREG(st.st_mode);
-#endif
-#endif // __WIN32__/!__WIN32__
-}

 
 

-bool wxFileName::DirExists() const
-{
-    return wxFileName::DirExists( GetPath() );
-}
+#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)

 
 

-/* static */
-bool wxFileName::DirExists( const wxString &dirPath )
+void RemoveTrailingSeparatorsFromPath(wxString& strPath)

 {
 {

-    wxString strPath(dirPath);
-
-#if defined(__WINDOWS__) || defined(__OS2__)

     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
     // so remove all trailing backslashes from the path - but don't do this for
     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
     // so remove all trailing backslashes from the path - but don't do this for

-    // the paths "d:\" (which are different from "d:") nor for just "\"
-    while ( wxEndsWithPathSeparator(strPath) )
+    // the paths "d:\" (which are different from "d:"), for just "\" or for
+    // windows unique volume names ("\\?\Volume{GUID}\")
+    while ( wxEndsWithPathSeparator( strPath ) )

     {
         size_t len = strPath.length();
     {
         size_t len = strPath.length();

-        if ( len == 1 || (len == 3 && strPath[len - 2] == wxT(':')) )
+        if ( len == 1 || (len == 3 && strPath[len - 2] == wxT(':')) ||
+                (len == wxMSWUniqueVolumePrefixLength &&
+                 wxFileName::IsMSWUniqueVolumeNamePath(strPath)))
+        {

             break;
             break;

+        }

 
         strPath.Truncate(len - 1);
     }
 
         strPath.Truncate(len - 1);
     }

-#endif // __WINDOWS__
+}

 
 

-#ifdef __OS2__
-    // OS/2 can't handle "d:", it wants either "d:\" or "d:."
-    if (strPath.length() == 2 && strPath[1u] == wxT(':'))
-        strPath << wxT('.');
-#endif
+#endif // __WINDOWS__ || __OS2__

 
 

-#if defined(__WXPALMOS__)
-    return false;
-#elif defined(__WIN32__) && !defined(__WXMICROWIN__)
-    // stat() can't cope with network paths
-    DWORD ret = ::GetFileAttributes(strPath.fn_str());
+bool
+wxFileSystemObjectExists(const wxString& path, int flags)
+{
+
+    // Should the existence of file/directory with this name be accepted, i.e.
+    // result in the true return value from this function?
+    const bool acceptFile = (flags & wxFILE_EXISTS_REGULAR) != 0;
+    const bool acceptDir  = (flags & wxFILE_EXISTS_DIR)  != 0;
+
+    wxString strPath(path);
+
+#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
+    if ( acceptDir )
+    {
+        // Ensure that the path doesn't have any trailing separators when
+        // checking for directories.
+        RemoveTrailingSeparatorsFromPath(strPath);
+    }
+
+    // we must use GetFileAttributes() instead of the ANSI C functions because
+    // it can cope with network (UNC) paths unlike them
+    DWORD ret = ::GetFileAttributes(strPath.t_str());
+
+    if ( ret == INVALID_FILE_ATTRIBUTES )
+        return false;

 
 

-    return (ret != INVALID_FILE_ATTRIBUTES) && (ret & FILE_ATTRIBUTE_DIRECTORY);
+    if ( ret & FILE_ATTRIBUTE_DIRECTORY )
+        return acceptDir;
+
+    // Anything else must be a file (perhaps we should check for
+    // FILE_ATTRIBUTE_REPARSE_POINT?)
+    return acceptFile;

 #elif defined(__OS2__)
 #elif defined(__OS2__)

+    if ( acceptDir )
+    {
+        // OS/2 can't handle "d:", it wants either "d:\" or "d:."
+        if (strPath.length() == 2 && strPath[1u] == wxT(':'))
+            strPath << wxT('.');
+    }
+

     FILESTATUS3 Info = {{0}};
     APIRET rc = ::DosQueryPathInfo((PSZ)(WXSTRINGCAST strPath), FIL_STANDARD,
     FILESTATUS3 Info = {{0}};
     APIRET rc = ::DosQueryPathInfo((PSZ)(WXSTRINGCAST strPath), FIL_STANDARD,

-                                   (void*) &Info, sizeof(FILESTATUS3));
+            (void*) &Info, sizeof(FILESTATUS3));
+
+    if ( rc == NO_ERROR )
+    {
+        if ( Info.attrFile & FILE_DIRECTORY )
+            return acceptDir;
+        else
+            return acceptFile;
+    }

 
 

-    return ((rc == NO_ERROR) && (Info.attrFile & FILE_DIRECTORY)) ||
-      (rc == ERROR_SHARING_VIOLATION);
-    // If we got a sharing violation, there must be something with this name.
-#else // !__WIN32__
+    // We consider that the path must exist if we get a sharing violation for
+    // it but we don't know what is it in this case.
+    if ( rc == ERROR_SHARING_VIOLATION )
+        return flags & wxFILE_EXISTS_ANY;

 
 

+    // Any other error (usually ERROR_PATH_NOT_FOUND), means there is nothing
+    // there.
+    return false;
+#else // Non-MSW, non-OS/2

     wxStructStat st;
     wxStructStat st;

-#ifndef __VISAGECPP__
-    return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
-#else
-    // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
-    return wxStat(strPath.c_str(), &st) == 0 && (st.st_mode == S_IFDIR);
-#endif
+    if ( !StatAny(st, strPath, flags) )
+        return false;
+
+    if ( S_ISREG(st.st_mode) )
+        return acceptFile;
+    if ( S_ISDIR(st.st_mode) )
+        return acceptDir;
+    if ( S_ISLNK(st.st_mode) )
+    {
+        // Take care to not test for "!= 0" here as this would erroneously
+        // return true if only wxFILE_EXISTS_NO_FOLLOW, which is part of
+        // wxFILE_EXISTS_SYMLINK, is set too.
+        return (flags & wxFILE_EXISTS_SYMLINK) == wxFILE_EXISTS_SYMLINK;
+    }
+    if ( S_ISBLK(st.st_mode) || S_ISCHR(st.st_mode) )
+        return (flags & wxFILE_EXISTS_DEVICE) != 0;
+    if ( S_ISFIFO(st.st_mode) )
+        return (flags & wxFILE_EXISTS_FIFO) != 0;
+    if ( S_ISSOCK(st.st_mode) )
+        return (flags & wxFILE_EXISTS_SOCKET) != 0;
+
+    return flags & wxFILE_EXISTS_ANY;
+#endif // Platforms
+}
+
+} // anonymous namespace
+
+bool wxFileName::FileExists() const
+{
+    int flags = wxFILE_EXISTS_REGULAR;
+    if ( !ShouldFollowLink() )
+        flags |= wxFILE_EXISTS_NO_FOLLOW;
+
+    return wxFileSystemObjectExists(GetFullPath(), flags);
+}
+
+/* static */
+bool wxFileName::FileExists( const wxString &filePath )
+{
+    return wxFileSystemObjectExists(filePath, wxFILE_EXISTS_REGULAR);
+}
+
+bool wxFileName::DirExists() const
+{
+    int flags = wxFILE_EXISTS_DIR;
+    if ( !ShouldFollowLink() )
+        flags |= wxFILE_EXISTS_NO_FOLLOW;
+
+    return Exists(GetPath(), flags);
+}
+
+/* static */
+bool wxFileName::DirExists( const wxString &dirPath )
+{
+    return wxFileSystemObjectExists(dirPath, wxFILE_EXISTS_DIR);
+}
+
+bool wxFileName::Exists(int flags) const
+{
+    // Notice that wxFILE_EXISTS_NO_FOLLOW may be specified in the flags even
+    // if our DontFollowLink() hadn't been called and we do honour it then. But
+    // if the user took the care of calling DontFollowLink(), it is always
+    // taken into account.
+    if ( !ShouldFollowLink() )
+        flags |= wxFILE_EXISTS_NO_FOLLOW;
+
+    return wxFileSystemObjectExists(GetFullPath(), flags);
+}

 
 

-#endif // __WIN32__/!__WIN32__
+/* static */
+bool wxFileName::Exists(const wxString& path, int flags)
+{
+    return wxFileSystemObjectExists(path, flags);

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -752,7 +892,7 @@ static int wxOpenWithDeleteOnClose(const wxString& filename)
     DWORD attributes = FILE_ATTRIBUTE_TEMPORARY |
                        FILE_FLAG_DELETE_ON_CLOSE;
 
     DWORD attributes = FILE_ATTRIBUTE_TEMPORARY |
                        FILE_FLAG_DELETE_ON_CLOSE;
 

-    HANDLE h = ::CreateFile(filename.fn_str(), access, 0, NULL,
+    HANDLE h = ::CreateFile(filename.t_str(), access, 0, NULL,

                             disposition, attributes, NULL);
 
     return wxOpenOSFHandle(h, wxO_BINARY);
                             disposition, attributes, NULL);
 
     return wxOpenOSFHandle(h, wxO_BINARY);


@@ -787,7 +927,7 @@ static bool wxTempOpen(wxFFile *file, const wxString& path, bool *deleteOnClose)
     int fd = wxTempOpen(path, deleteOnClose);
     if (fd == -1)
         return false;
     int fd = wxTempOpen(path, deleteOnClose);
     if (fd == -1)
         return false;

-    file->Attach(wx_fdopen(fd, "w+b"));
+    file->Attach(wx_fdopen(fd, "w+b"), path);

     return file->IsOpened();
 #endif // wx_fdopen
 }
     return file->IsOpened();
 #endif // wx_fdopen
 }


@@ -847,8 +987,8 @@ static wxString wxCreateTempImpl(
     }
 
 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
     }
 
 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)

-    if ( !::GetTempFileName(dir.fn_str(), name.fn_str(), 0,
-                            wxStringBuffer(path, MAX_PATH + 1)) )
+    if (!::GetTempFileName(dir.t_str(), name.t_str(), 0,
+                           wxStringBuffer(path, MAX_PATH + 1)))

     {
         wxLogLastError(wxT("GetTempFileName"));
 
     {
         wxLogLastError(wxT("GetTempFileName"));
 


@@ -898,7 +1038,7 @@ static wxString wxCreateTempImpl(
         if ( ffileTemp )
         {
         #ifdef wx_fdopen
         if ( ffileTemp )
         {
         #ifdef wx_fdopen

-            ffileTemp->Attach(wx_fdopen(fdTemp, "r+b"));
+            ffileTemp->Attach(wx_fdopen(fdTemp, "r+b"), path);

         #else
             ffileTemp->Open(path, wxT("r+b"));
             close(fdTemp);
         #else
             ffileTemp->Open(path, wxT("r+b"));
             close(fdTemp);


@@ -928,7 +1068,7 @@ static wxString wxCreateTempImpl(
     }
 #else // !HAVE_MKTEMP (includes __DOS__)
     // generate the unique file name ourselves
     }
 #else // !HAVE_MKTEMP (includes __DOS__)
     // generate the unique file name ourselves

-    #if !defined(__DOS__) && !defined(__PALMOS__) && (!defined(__MWERKS__) || defined(__DARWIN__) )
+    #if !defined(__DOS__)

     path << (unsigned int)getpid();
     #endif
 
     path << (unsigned int)getpid();
     #endif
 


@@ -1162,9 +1302,24 @@ wxString wxFileName::GetTempDir()
             wxLogLastError(wxT("GetTempPath"));
         }
 #elif defined(__WXMAC__) && wxOSX_USE_CARBON
             wxLogLastError(wxT("GetTempPath"));
         }
 #elif defined(__WXMAC__) && wxOSX_USE_CARBON

-        dir = wxMacFindFolder(short(kOnSystemDisk), kTemporaryFolderType, kCreateFolder);
+        dir = wxMacFindFolderNoSeparator(short(kOnSystemDisk), kTemporaryFolderType, kCreateFolder);

 #endif // systems with native way
     }
 #endif // systems with native way
     }

+    else // we got directory from an environment variable
+    {
+        // remove any trailing path separators, we don't want to ever return
+        // them from this function for consistency
+        const size_t lastNonSep = dir.find_last_not_of(GetPathSeparators());
+        if ( lastNonSep == wxString::npos )
+        {
+            // the string consists entirely of separators, leave only one
+            dir = GetPathSeparator();
+        }
+        else
+        {
+            dir.erase(lastNonSep + 1);
+        }
+    }

 
     // fall back to hard coded value
     if ( dir.empty() )
 
     // fall back to hard coded value
     if ( dir.empty() )


@@ -1230,7 +1385,7 @@ bool wxFileName::Rmdir(int flags) const
 
 bool wxFileName::Rmdir(const wxString& dir, int flags)
 {
 
 bool wxFileName::Rmdir(const wxString& dir, int flags)
 {

-#ifdef __WXMSW__
+#ifdef __WINDOWS__

     if ( flags & wxPATH_RMDIR_RECURSIVE )
     {
         // SHFileOperation needs double null termination string
     if ( flags & wxPATH_RMDIR_RECURSIVE )
     {
         // SHFileOperation needs double null termination string


@@ -1243,7 +1398,7 @@ bool wxFileName::Rmdir(const wxString& dir, int flags)
         SHFILEOPSTRUCT fileop;
         wxZeroMemory(fileop);
         fileop.wFunc = FO_DELETE;
         SHFILEOPSTRUCT fileop;
         wxZeroMemory(fileop);
         fileop.wFunc = FO_DELETE;

-        fileop.pFrom = path.fn_str();
+        fileop.pFrom = path.t_str();

         fileop.fFlags = FOF_SILENT | FOF_NOCONFIRMATION;
     #ifndef __WXWINCE__
         // FOF_NOERRORUI is not defined in WinCE
         fileop.fFlags = FOF_SILENT | FOF_NOCONFIRMATION;
     #ifndef __WXWINCE__
         // FOF_NOERRORUI is not defined in WinCE


@@ -1262,10 +1417,24 @@ bool wxFileName::Rmdir(const wxString& dir, int flags)
         return true;
     }
     else if ( flags & wxPATH_RMDIR_FULL )
         return true;
     }
     else if ( flags & wxPATH_RMDIR_FULL )

-#else // !__WXMSW__
+#else // !__WINDOWS__

     if ( flags != 0 )   // wxPATH_RMDIR_FULL or wxPATH_RMDIR_RECURSIVE
     if ( flags != 0 )   // wxPATH_RMDIR_FULL or wxPATH_RMDIR_RECURSIVE

-#endif // !__WXMSW__
+#endif // !__WINDOWS__

     {
     {

+#ifndef __WINDOWS__
+        if ( flags & wxPATH_RMDIR_RECURSIVE )
+        {
+            // When deleting the tree recursively, we are supposed to delete
+            // this directory itself even when it is a symlink -- but without
+            // following it. Do it here as wxRmdir() would simply follow if
+            // called for a symlink.
+            if ( wxFileName::Exists(dir, wxFILE_EXISTS_SYMLINK) )
+            {
+                return wxRemoveFile(dir);
+            }
+        }
+#endif // !__WINDOWS__
+

         wxString path(dir);
         if ( path.Last() != wxFILE_SEP_PATH )
             path += wxFILE_SEP_PATH;
         wxString path(dir);
         if ( path.Last() != wxFILE_SEP_PATH )
             path += wxFILE_SEP_PATH;


@@ -1277,26 +1446,32 @@ bool wxFileName::Rmdir(const wxString& dir, int flags)
 
         wxString filename;
 
 
         wxString filename;
 

-        // first delete all subdirectories
-        bool cont = d.GetFirst(&filename, "", wxDIR_DIRS | wxDIR_HIDDEN);
+        // First delete all subdirectories: notice that we don't follow
+        // symbolic links, potentially leading outside this directory, to avoid
+        // unpleasant surprises.
+        bool cont = d.GetFirst(&filename, wxString(),
+                               wxDIR_DIRS | wxDIR_HIDDEN | wxDIR_NO_FOLLOW);

         while ( cont )
         {
             wxFileName::Rmdir(path + filename, flags);
             cont = d.GetNext(&filename);
         }
 
         while ( cont )
         {
             wxFileName::Rmdir(path + filename, flags);
             cont = d.GetNext(&filename);
         }
 

-#ifndef __WXMSW__
+#ifndef __WINDOWS__

         if ( flags & wxPATH_RMDIR_RECURSIVE )
         {
         if ( flags & wxPATH_RMDIR_RECURSIVE )
         {

-            // delete all files too
-            cont = d.GetFirst(&filename, "", wxDIR_FILES | wxDIR_HIDDEN);
+            // Delete all files too and, for the same reasons as above, don't
+            // follow symlinks which could refer to the files outside of this
+            // directory and just delete the symlinks themselves.
+            cont = d.GetFirst(&filename, wxString(),
+                              wxDIR_FILES | wxDIR_HIDDEN | wxDIR_NO_FOLLOW);

             while ( cont )
             {
                 ::wxRemoveFile(path + filename);
                 cont = d.GetNext(&filename);
             }
         }
             while ( cont )
             {
                 ::wxRemoveFile(path + filename);
                 cont = d.GetNext(&filename);
             }
         }

-#endif // !__WXMSW__
+#endif // !__WINDOWS__

     }
 
     return ::wxRmdir(dir);
     }
 
     return ::wxRmdir(dir);


@@ -1407,15 +1582,24 @@ bool wxFileName::Normalize(int flags,
 
             if ( dir == wxT("..") )
             {
 
             if ( dir == wxT("..") )
             {

-                if ( m_dirs.IsEmpty() )
+                if ( m_dirs.empty() )

                 {
                 {

-                    wxLogError(_("The path '%s' contains too many \"..\"!"),
-                               GetFullPath().c_str());
-                    return false;
-                }
+                    // We have more ".." than directory components so far.
+                    // Don't treat this as an error as the path could have been
+                    // entered by user so try to handle it reasonably: if the
+                    // path is absolute, just ignore the extra ".." because
+                    // "/.." is the same as "/". Otherwise, i.e. for relative
+                    // paths, keep ".." unchanged because removing it would
+                    // modify the file a relative path refers to.
+                    if ( !m_relative )
+                        continue;

 
 

-                m_dirs.RemoveAt(m_dirs.GetCount() - 1);
-                continue;
+                }
+                else // Normal case, go one step up.
+                {
+                    m_dirs.pop_back();
+                    continue;
+                }

             }
         }
 
             }
         }
 


@@ -1519,13 +1703,6 @@ bool wxFileName::ReplaceHomeDir(wxPathFormat format)
 // quotation marks."
 
 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
 // quotation marks."
 
 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE

-// The following lines are necessary under WinCE
-// #include "wx/msw/private.h"
-// #include <ole2.h>
-#include <shlobj.h>
-#if defined(__WXWINCE__)
-#include <shlguid.h>
-#endif

 
 bool wxFileName::GetShortcutTarget(const wxString& shortcutPath,
                                    wxString& targetFilename,
 
 bool wxFileName::GetShortcutTarget(const wxString& shortcutPath,
                                    wxString& targetFilename,


@@ -1693,8 +1870,15 @@ bool wxFileName::SameAs(const wxFileName& filepath, wxPathFormat format) const
     if ( fn1.GetFullPath() == fn2.GetFullPath() )
         return true;
 
     if ( fn1.GetFullPath() == fn2.GetFullPath() )
         return true;
 

-    // TODO: compare inodes for Unix, this works even when filenames are
-    //       different but files are the same (symlinks) (VZ)
+#if defined(__UNIX__)
+    wxStructStat st1, st2;
+    if ( StatAny(st1, fn1) && StatAny(st2, fn2) )
+    {
+        if ( st1.st_ino == st2.st_ino && st1.st_dev == st2.st_dev )
+            return true;
+    }
+    //else: It's not an error if one or both files don't exist.
+#endif // defined __UNIX__

 
     return false;
 }
 
     return false;
 }


@@ -1702,7 +1886,7 @@ bool wxFileName::SameAs(const wxFileName& filepath, wxPathFormat format) const
 /* static */
 bool wxFileName::IsCaseSensitive( wxPathFormat format )
 {
 /* static */
 bool wxFileName::IsCaseSensitive( wxPathFormat format )
 {

-    // only Unix filenames are truely case-sensitive
+    // only Unix filenames are truly case-sensitive

     return GetFormat(format) == wxPATH_UNIX;
 }
 
     return GetFormat(format) == wxPATH_UNIX;
 }
 


@@ -1727,7 +1911,7 @@ wxString wxFileName::GetForbiddenChars(wxPathFormat format)
         case wxPATH_MAC:
             // On a Mac even names with * and ? are allowed (Tested with OS
             // 9.2.1 and OS X 10.2.5)
         case wxPATH_MAC:
             // On a Mac even names with * and ? are allowed (Tested with OS
             // 9.2.1 and OS X 10.2.5)

-            strForbiddenChars = wxEmptyString;
+            strForbiddenChars.clear();

             break;
 
         case wxPATH_DOS:
             break;
 
         case wxPATH_DOS:


@@ -1810,6 +1994,18 @@ bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
     return ch != wxT('\0') && GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
 }
 
     return ch != wxT('\0') && GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
 }
 

+/* static */
+bool
+wxFileName::IsMSWUniqueVolumeNamePath(const wxString& path, wxPathFormat format)
+{
+    // return true if the format used is the DOS/Windows one and the string begins
+    // with a Windows unique volume name ("\\?\Volume{guid}\")
+    return format == wxPATH_DOS &&
+            path.length() >= wxMSWUniqueVolumePrefixLength &&
+             path.StartsWith(wxS("\\\\?\\Volume{")) &&
+              path[wxMSWUniqueVolumePrefixLength - 1] == wxFILE_SEP_PATH_DOS;
+}
+

 // ----------------------------------------------------------------------------
 // path components manipulation
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // path components manipulation
 // ----------------------------------------------------------------------------


@@ -1837,10 +2033,12 @@ bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
     return true;
 }
 
     return true;
 }
 

-void wxFileName::AppendDir( const wxString& dir )
+bool wxFileName::AppendDir( const wxString& dir )

 {
 {

-    if ( IsValidDirComponent(dir) )
-        m_dirs.Add( dir );
+    if (!IsValidDirComponent(dir))
+        return false;
+    m_dirs.Add(dir);
+    return true;

 }
 
 void wxFileName::PrependDir( const wxString& dir )
 }
 
 void wxFileName::PrependDir( const wxString& dir )


@@ -1848,10 +2046,12 @@ void wxFileName::PrependDir( const wxString& dir )
     InsertDir(0, dir);
 }
 
     InsertDir(0, dir);
 }
 

-void wxFileName::InsertDir(size_t before, const wxString& dir)
+bool wxFileName::InsertDir(size_t before, const wxString& dir)

 {
 {

-    if ( IsValidDirComponent(dir) )
-        m_dirs.Insert(dir, before);
+    if (!IsValidDirComponent(dir))
+        return false;
+    m_dirs.Insert(dir, before);
+    return true;

 }
 
 void wxFileName::RemoveDir(size_t pos)
 }
 
 void wxFileName::RemoveDir(size_t pos)


@@ -2001,14 +2201,14 @@ wxString wxFileName::GetShortPath() const
 {
     wxString path(GetFullPath());
 
 {
     wxString path(GetFullPath());
 

-#if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
-    DWORD sz = ::GetShortPathName(path.fn_str(), NULL, 0);
+#if defined(__WINDOWS__) && defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
+    DWORD sz = ::GetShortPathName(path.t_str(), NULL, 0);

     if ( sz != 0 )
     {
         wxString pathOut;
         if ( ::GetShortPathName
                (
     if ( sz != 0 )
     {
         wxString pathOut;
         if ( ::GetShortPathName
                (

-                path.fn_str(),
+                path.t_str(),

                 wxStringBuffer(pathOut, sz),
                 sz
                ) != 0 )
                 wxStringBuffer(pathOut, sz),
                 sz
                ) != 0 )


@@ -2066,12 +2266,12 @@ wxString wxFileName::GetLongPath() const
 
     if ( s_pfnGetLongPathName )
     {
 
     if ( s_pfnGetLongPathName )
     {

-        DWORD dwSize = (*s_pfnGetLongPathName)(path.fn_str(), NULL, 0);
+        DWORD dwSize = (*s_pfnGetLongPathName)(path.t_str(), NULL, 0);

         if ( dwSize > 0 )
         {
             if ( (*s_pfnGetLongPathName)
                  (
         if ( dwSize > 0 )
         {
             if ( (*s_pfnGetLongPathName)
                  (

-                  path.fn_str(),
+                  path.t_str(),

                   wxStringBuffer(pathOut, dwSize),
                   dwSize
                  ) != 0 )
                   wxStringBuffer(pathOut, dwSize),
                   dwSize
                  ) != 0 )


@@ -2093,7 +2293,7 @@ wxString wxFileName::GetLongPath() const
                   GetVolumeSeparator(wxPATH_DOS) +
                   GetPathSeparator(wxPATH_DOS);
     else
                   GetVolumeSeparator(wxPATH_DOS) +
                   GetPathSeparator(wxPATH_DOS);
     else

-        pathOut = wxEmptyString;
+        pathOut.clear();

 
     wxArrayString dirs = GetDirs();
     dirs.Add(GetFullName());
 
     wxArrayString dirs = GetDirs();
     dirs.Add(GetFullName());


@@ -2123,7 +2323,7 @@ wxString wxFileName::GetLongPath() const
             continue;
         }
 
             continue;
         }
 

-        hFind = ::FindFirstFile(tmpPath.fn_str(), &findFileData);
+        hFind = ::FindFirstFile(tmpPath.t_str(), &findFileData);

         if (hFind == INVALID_HANDLE_VALUE)
         {
             // Error: most likely reason is that path doesn't exist, so
         if (hFind == INVALID_HANDLE_VALUE)
         {
             // Error: most likely reason is that path doesn't exist, so


@@ -2151,7 +2351,7 @@ wxPathFormat wxFileName::GetFormat( wxPathFormat format )
 {
     if (format == wxPATH_NATIVE)
     {
 {
     if (format == wxPATH_NATIVE)
     {

-#if defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__)
+#if defined(__WINDOWS__) || defined(__OS2__) || defined(__DOS__)

         format = wxPATH_DOS;
 #elif defined(__VMS)
         format = wxPATH_VMS;
         format = wxPATH_DOS;
 #elif defined(__VMS)
         format = wxPATH_VMS;


@@ -2194,9 +2394,26 @@ wxFileName::SplitVolume(const wxString& fullpathWithVolume,
 
     wxString fullpath = fullpathWithVolume;
 
 
     wxString fullpath = fullpathWithVolume;
 

-    // special Windows UNC paths hack: transform \\share\path into share:path
-    if ( IsUNCPath(fullpath, format) )
+    if ( IsMSWUniqueVolumeNamePath(fullpath, format) )
+    {
+        // special Windows unique volume names hack: transform
+        // \\?\Volume{guid}\path into Volume{guid}:path
+        // note: this check must be done before the check for UNC path
+
+        // we know the last backslash from the unique volume name is located
+        // there from IsMSWUniqueVolumeNamePath
+        fullpath[wxMSWUniqueVolumePrefixLength - 1] = wxFILE_SEP_DSK;
+
+        // paths starting with a unique volume name should always be absolute
+        fullpath.insert(wxMSWUniqueVolumePrefixLength, 1, wxFILE_SEP_PATH_DOS);
+
+        // remove the leading "\\?\" part
+        fullpath.erase(0, 4);
+    }
+    else if ( IsUNCPath(fullpath, format) )

     {
     {

+        // special Windows UNC paths hack: transform \\share\path into share:path
+

         fullpath.erase(0, 2);
 
         size_t posFirstSlash =
         fullpath.erase(0, 2);
 
         size_t posFirstSlash =


@@ -2526,14 +2743,16 @@ bool wxFileName::GetTimes(wxDateTime *dtAccess,
 #elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || defined(__OS2__) || (defined(__DOS__) && defined(__WATCOMC__))
     // no need to test for IsDir() here
     wxStructStat stBuf;
 #elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || defined(__OS2__) || (defined(__DOS__) && defined(__WATCOMC__))
     // no need to test for IsDir() here
     wxStructStat stBuf;

-    if ( wxStat( GetFullPath().c_str(), &stBuf) == 0 )
+    if ( StatAny(stBuf, *this) )

     {
     {

+        // Android defines st_*time fields as unsigned long, but time_t as long,
+        // hence the static_casts.

         if ( dtAccess )
         if ( dtAccess )

-            dtAccess->Set(stBuf.st_atime);
+            dtAccess->Set(static_cast<time_t>(stBuf.st_atime));

         if ( dtMod )
         if ( dtMod )

-            dtMod->Set(stBuf.st_mtime);
+            dtMod->Set(static_cast<time_t>(stBuf.st_mtime));

         if ( dtCreate )
         if ( dtCreate )

-            dtCreate->Set(stBuf.st_ctime);
+            dtCreate->Set(static_cast<time_t>(stBuf.st_ctime));

 
         return true;
     }
 
         return true;
     }


@@ -2564,10 +2783,7 @@ wxULongLong wxFileName::GetSize(const wxString &filename)
     if (!wxFileExists(filename))
         return wxInvalidSize;
 
     if (!wxFileExists(filename))
         return wxInvalidSize;
 

-#if defined(__WXPALMOS__)
-    // TODO
-    return wxInvalidSize;
-#elif defined(__WIN32__)
+#if defined(__WIN32__)

     wxFileHandle f(filename, wxFileHandle::ReadAttr);
     if (!f.IsOk())
         return wxInvalidSize;
     wxFileHandle f(filename, wxFileHandle::ReadAttr);
     if (!f.IsOk())
         return wxInvalidSize;


@@ -2580,11 +2796,7 @@ wxULongLong wxFileName::GetSize(const wxString &filename)
     return wxULongLong(lpFileSizeHigh, ret);
 #else // ! __WIN32__
     wxStructStat st;
     return wxULongLong(lpFileSizeHigh, ret);
 #else // ! __WIN32__
     wxStructStat st;

-#ifndef wxNEED_WX_UNISTD_H
-    if (wxStat( filename.fn_str() , &st) != 0)
-#else

     if (wxStat( filename, &st) != 0)
     if (wxStat( filename, &st) != 0)

-#endif

         return wxInvalidSize;
     return wxULongLong(st.st_size);
 #endif
         return wxInvalidSize;
     return wxULongLong(st.st_size);
 #endif


@@ -2593,27 +2805,54 @@ wxULongLong wxFileName::GetSize(const wxString &filename)
 /* static */
 wxString wxFileName::GetHumanReadableSize(const wxULongLong &bs,
                                           const wxString &nullsize,
 /* static */
 wxString wxFileName::GetHumanReadableSize(const wxULongLong &bs,
                                           const wxString &nullsize,

-                                          int precision)
+                                          int precision,
+                                          wxSizeConvention conv)

 {
 {

-    static const double KILOBYTESIZE = 1024.0;
-    static const double MEGABYTESIZE = 1024.0*KILOBYTESIZE;
-    static const double GIGABYTESIZE = 1024.0*MEGABYTESIZE;
-    static const double TERABYTESIZE = 1024.0*GIGABYTESIZE;
-
-    if (bs == 0 || bs == wxInvalidSize)
+    // deal with trivial case first
+    if ( bs == 0 || bs == wxInvalidSize )

         return nullsize;
 
         return nullsize;
 

-    double bytesize = bs.ToDouble();
-    if (bytesize < KILOBYTESIZE)
-        return wxString::Format(_("%s B"), bs.ToString().c_str());
-    if (bytesize < MEGABYTESIZE)
-        return wxString::Format(_("%.*f kB"), precision, bytesize/KILOBYTESIZE);
-    if (bytesize < GIGABYTESIZE)
-        return wxString::Format(_("%.*f MB"), precision, bytesize/MEGABYTESIZE);
-    if (bytesize < TERABYTESIZE)
-        return wxString::Format(_("%.*f GB"), precision, bytesize/GIGABYTESIZE);
+    // depending on the convention used the multiplier may be either 1000 or
+    // 1024 and the binary infix may be empty (for "KB") or "i" (for "KiB")
+    double multiplier = 1024.;
+    wxString biInfix;
+
+    switch ( conv )
+    {
+        case wxSIZE_CONV_TRADITIONAL:
+            // nothing to do, this corresponds to the default values of both
+            // the multiplier and infix string
+            break;
+
+        case wxSIZE_CONV_IEC:
+            biInfix = "i";
+            break;
+
+        case wxSIZE_CONV_SI:
+            multiplier = 1000;
+            break;
+    }
+
+    const double kiloByteSize = multiplier;
+    const double megaByteSize = multiplier * kiloByteSize;
+    const double gigaByteSize = multiplier * megaByteSize;
+    const double teraByteSize = multiplier * gigaByteSize;
+
+    const double bytesize = bs.ToDouble();
+
+    wxString result;
+    if ( bytesize < kiloByteSize )
+        result.Printf("%s B", bs.ToString());
+    else if ( bytesize < megaByteSize )
+        result.Printf("%.*f K%sB", precision, bytesize/kiloByteSize, biInfix);
+    else if (bytesize < gigaByteSize)
+        result.Printf("%.*f M%sB", precision, bytesize/megaByteSize, biInfix);
+    else if (bytesize < teraByteSize)
+        result.Printf("%.*f G%sB", precision, bytesize/gigaByteSize, biInfix);
+    else
+        result.Printf("%.*f T%sB", precision, bytesize/teraByteSize, biInfix);

 
 

-    return wxString::Format(_("%.*f TB"), precision, bytesize/TERABYTESIZE);
+    return result;

 }
 
 wxULongLong wxFileName::GetSize() const
 }
 
 wxULongLong wxFileName::GetSize() const


@@ -2621,9 +2860,11 @@ wxULongLong wxFileName::GetSize() const
     return GetSize(GetFullPath());
 }
 
     return GetSize(GetFullPath());
 }
 

-wxString wxFileName::GetHumanReadableSize(const wxString &failmsg, int precision) const
+wxString wxFileName::GetHumanReadableSize(const wxString& failmsg,
+                                          int precision,
+                                          wxSizeConvention conv) const

 {
 {

-    return GetHumanReadableSize(GetSize(), failmsg, precision);
+    return GetHumanReadableSize(GetSize(), failmsg, precision, conv);

 }
 
 #endif // wxUSE_LONGLONG
 }
 
 #endif // wxUSE_LONGLONG