support for @2x notation for wxBITMAP_TYPE_PNG (non-resource) on retina displays

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

diff --git a/src/common/filefn.cpp b/src/common/filefn.cpp
index a05b15e438e029042d3321702d111fe143e37b47..f723d120db9aa142e0ea4ef20d17eb9e3d5c0396 100644 (file)
--- a/src/common/filefn.cpp
+++ b/src/common/filefn.cpp
@@ -61,6 +61,7 @@
 
 #ifdef __WINDOWS__
     #include "wx/msw/private.h"
+    #include "wx/msw/missing.h"
     #include "wx/msw/mslu.h"
 
     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
@@ -742,11 +743,13 @@ wxPathOnly (wxChar *path)
     {
         static wxChar buf[_MAXPATHLEN];
 
-        // Local copy
-        wxStrcpy (buf, path);
-
         int l = wxStrlen(path);
         int i = l - 1;
+        if ( i >= _MAXPATHLEN )
+            return NULL;
+
+        // Local copy
+        wxStrcpy (buf, path);
 
         // Search backward for a backward or forward slash
         while (i > -1)
@@ -788,12 +791,15 @@ wxString wxPathOnly (const wxString& path)
     {
         wxChar buf[_MAXPATHLEN];
 
-        // Local copy
-        wxStrcpy(buf, path);
-
         int l = path.length();
         int i = l - 1;
 
+        if ( i >= _MAXPATHLEN )
+            return wxString();
+
+        // Local copy
+        wxStrcpy(buf, path);
+
         // Search backward for a backward or forward slash
         while (i > -1)
         {
@@ -1355,9 +1361,7 @@ wxString wxFindNextFile()
     wxCHECK_MSG( gs_dir, "", "You must call wxFindFirstFile before!" );
 
     wxString result;
-    gs_dir->GetNext(&result);
-
-    if ( result.empty() )
+    if ( !gs_dir->GetNext(&result) || result.empty() )
     {
         wxDELETE(gs_dir);
         return result;
@@ -1386,7 +1390,7 @@ wxChar *wxDoGetCwd(wxChar *buf, int sz)
         buf = new wxChar[sz + 1];
     }
 
-    bool ok wxDUMMY_INITIALIZE(false);
+    bool ok = false;
 
     // for the compilers which have Unicode version of _getcwd(), call it
     // directly, for the others call the ANSI version and do the translation
@@ -1574,8 +1578,12 @@ wxString wxGetOSDirectory()
 #ifdef __WXWINCE__
     return wxString(wxT("\\Windows"));
 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
-    wxChar buf[256];
-    GetWindowsDirectory(buf, 256);
+    wxChar buf[MAX_PATH];
+    if ( !GetWindowsDirectory(buf, MAX_PATH) )
+    {
+        wxLogLastError(wxS("GetWindowsDirectory"));
+    }
+
     return wxString(buf);
 #elif defined(__WXMAC__) && wxOSX_USE_CARBON
     return wxMacFindFolderNoSeparator(kOnSystemDisk, 'macs', false);