Applied patch [ 601072 ] wxFileName::GetLongPath error & fix

By Michael Fielding (mfielding)

When using wxFileName::MakeRelativeTo with a new base of "x:\", the result is incorrect. It works fine when there is a subdirectory after x:\. I tracked this to a bug in GetLongPath; here is the fix.

Also, GetLongPath will now try and get as much long path as it can, failing only when part of the path cannot be found. eg

x:\existi~1\file not existing.new becomes
x:\existing directory\filenotexisting.new

instead of just staying the same.

Also, MakeRelative no longer makes filenames lowercase when it normalises them.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16886 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/common/filename.cpp b/src/common/filename.cpp
index 732a3f956226ad45387fa83e01b96400d6200b32..70474e9b9e156b244d0ff2c513fd44391dfcb44b 100644 (file)
--- a/src/common/filename.cpp
+++ b/src/common/filename.cpp
@@ -971,8 +971,8 @@ bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
 
     // get cwd only once - small time saving
     wxString cwd = wxGetCwd();
 
     // get cwd only once - small time saving
     wxString cwd = wxGetCwd();

-    Normalize(wxPATH_NORM_ALL, cwd, format);
-    fnBase.Normalize(wxPATH_NORM_ALL, cwd, format);
+    Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
+    fnBase.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);

 
     bool withCase = IsCaseSensitive(format);
 
 
     bool withCase = IsCaseSensitive(format);
 


@@ -1029,8 +1029,8 @@ bool wxFileName::SameAs(const wxFileName &filepath, wxPathFormat format)
 
     // get cwd only once - small time saving
     wxString cwd = wxGetCwd();
 
     // get cwd only once - small time saving
     wxString cwd = wxGetCwd();

-    fn1.Normalize(wxPATH_NORM_ALL, cwd, format);
-    fn2.Normalize(wxPATH_NORM_ALL, cwd, format);
+    fn1.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
+    fn2.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);

 
     if ( fn1.GetFullPath() == fn2.GetFullPath() )
         return TRUE;
 
     if ( fn1.GetFullPath() == fn2.GetFullPath() )
         return TRUE;


@@ -1362,7 +1362,13 @@ wxString wxFileName::GetLongPath() const
 
         WIN32_FIND_DATA findFileData;
         HANDLE hFind;
 
         WIN32_FIND_DATA findFileData;
         HANDLE hFind;

-        pathOut = wxEmptyString;
+
+        if ( HasVolume() )
+            pathOut = GetVolume() +
+                      GetVolumeSeparator(wxPATH_DOS) +
+                      GetPathSeparator(wxPATH_DOS);
+        else
+            pathOut = wxEmptyString;

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


@@ -1380,7 +1386,8 @@ wxString wxFileName::GetLongPath() const
             if ( tmpPath.empty() )
                 continue;
 
             if ( tmpPath.empty() )
                 continue;
 

-            if ( tmpPath.Last() == wxT(':') )
+            // can't see this being necessary? MF
+            if ( tmpPath.Last() == GetVolumeSeparator(wxPATH_DOS) )

             {
                 // Can't pass a drive and root dir to FindFirstFile,
                 // so continue to next dir
             {
                 // Can't pass a drive and root dir to FindFirstFile,
                 // so continue to next dir


@@ -1392,8 +1399,12 @@ wxString wxFileName::GetLongPath() const
             hFind = ::FindFirstFile(tmpPath, &findFileData);
             if (hFind == INVALID_HANDLE_VALUE)
             {
             hFind = ::FindFirstFile(tmpPath, &findFileData);
             if (hFind == INVALID_HANDLE_VALUE)
             {

-                // Error: return immediately with the original path
-                return path;
+                // Error: most likely reason is that path doesn't exist, so
+                // append any unprocessed parts and return
+                for ( i += 1; i < count; i++ )
+                    tmpPath += wxFILE_SEP_PATH + dirs[i];
+
+                return tmpPath;

             }
 
             pathOut += findFileData.cFileName;
             }
 
             pathOut += findFileData.cFileName;