look in codeset-specific directory for locale files first, then fallback to the one...

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

diff --git a/src/common/fileconf.cpp b/src/common/fileconf.cpp
index daaa9291fb555161aea4d60f224f83cc6bce32e6..c84e60de072a10df13cec44585b976d774d9dfa3 100644 (file)
--- a/src/common/fileconf.cpp
+++ b/src/common/fileconf.cpp
@@ -294,7 +294,7 @@ wxString wxFileConfig::GetGlobalDir()
     return wxT(".\\");
 #elif defined(__WXWINCE__)
     strDir = wxT("\\Windows\\");
-#elif // Windows
+#else // Windows
 
     wxChar szWinDir[MAX_PATH];
     ::GetWindowsDirectory(szWinDir, MAX_PATH);
@@ -495,7 +495,7 @@ wxFileConfig::wxFileConfig(wxInputStream &inStream, wxMBConv& conv)
         char buf[1024];
         do
         {
-            inStream.Read(buf, WXSIZEOF(buf));
+            inStream.Read(buf, WXSIZEOF(buf)-1);  // leave room for the NULL
 
             const wxStreamError err = inStream.GetLastError();
 
@@ -505,7 +505,12 @@ wxFileConfig::wxFileConfig(wxInputStream &inStream, wxMBConv& conv)
                 break;
             }
 
-            strTmp.append(wxConvertMB2WX(buf), inStream.LastRead());
+            // FIXME: this is broken because if we have part of multibyte
+            //        character in the buffer (and another part hasn't been
+            //        read yet) we're going to lose data because of conversion
+            //        errors
+            buf[inStream.LastRead()] = '\0';
+            strTmp += conv.cMB2WX(buf);
         }
         while ( !inStream.Eof() );
 
@@ -543,6 +548,7 @@ wxFileConfig::wxFileConfig(wxInputStream &inStream, wxMBConv& conv)
     Parse(memText, true /* local */);
 
     SetRootPath();
+    ResetDirty();
 }
 
 #endif // wxUSE_STREAMS
@@ -587,7 +593,7 @@ void wxFileConfig::Parse(wxTextBuffer& buffer, bool bLocal)
     {
       LineListAppend(strLine);
 
-      // let the root group have it start line as well
+      // let the root group have its start line as well
       if ( !n )
       {
         m_pCurrentGroup->SetLine(m_linesTail);
@@ -740,13 +746,14 @@ void wxFileConfig::SetRootPath()
   m_pCurrentGroup = m_pRootGroup;
 }
 
-void wxFileConfig::SetPath(const wxString& strPath)
+bool
+wxFileConfig::DoSetPath(const wxString& strPath, bool createMissingComponents)
 {
   wxArrayString aParts;
 
   if ( strPath.empty() ) {
     SetRootPath();
-    return;
+    return true;
   }
 
   if ( strPath[0] == wxCONFIG_PATH_SEPARATOR ) {
@@ -766,7 +773,13 @@ void wxFileConfig::SetPath(const wxString& strPath)
   for ( n = 0; n < aParts.Count(); n++ ) {
     wxFileConfigGroup *pNextGroup = m_pCurrentGroup->FindSubgroup(aParts[n]);
     if ( pNextGroup == NULL )
+    {
+      if ( !createMissingComponents )
+        return false;
+
       pNextGroup = m_pCurrentGroup->AddSubgroup(aParts[n]);
+    }
+
     m_pCurrentGroup = pNextGroup;
   }
 
@@ -775,6 +788,13 @@ void wxFileConfig::SetPath(const wxString& strPath)
   for ( n = 0; n < aParts.Count(); n++ ) {
     m_strPath << wxCONFIG_PATH_SEPARATOR << aParts[n];
   }
+
+  return true;
+}
+
+void wxFileConfig::SetPath(const wxString& strPath)
+{
+  DoSetPath(strPath, true /* create missing path components */);
 }
 
 // ----------------------------------------------------------------------------
@@ -851,10 +871,20 @@ size_t wxFileConfig::GetNumberOfGroups(bool bRecursive) const
 
 bool wxFileConfig::HasGroup(const wxString& strName) const
 {
-  wxConfigPathChanger path(this, strName);
+  // special case: DoSetPath("") does work as it's equivalent to DoSetPath("/")
+  // but there is no group with empty name so treat this separately
+  if ( strName.empty() )
+    return false;
+
+  const wxString pathOld = GetPath();
 
-  wxFileConfigGroup *pGroup = m_pCurrentGroup->FindSubgroup(path.Name());
-  return pGroup != NULL;
+  wxFileConfig *self = wx_const_cast(wxFileConfig *, this);
+  const bool
+    rc = self->DoSetPath(strName, false /* don't create missing components */);
+
+  self->SetPath(pathOld);
+
+  return rc;
 }
 
 bool wxFileConfig::HasEntry(const wxString& strName) const
@@ -1013,7 +1043,9 @@ bool wxFileConfig::Save(wxOutputStream& os, wxMBConv& conv)
     {
         wxString line = p->Text();
         line += wxTextFile::GetEOL();
-        if ( !os.Write(line.mb_str(conv), line.length()) )
+
+        wxCharBuffer buf(line.mb_str(conv));
+        if ( !os.Write(buf, strlen(buf)) )
         {
             wxLogError(_("Error saving user configuration data."));
 
@@ -1090,12 +1122,13 @@ bool wxFileConfig::DeleteEntry(const wxString& key, bool bGroupIfEmptyAlso)
   if ( !m_pCurrentGroup->DeleteEntry(path.Name()) )
     return false;
 
+  SetDirty();
+
   if ( bGroupIfEmptyAlso && m_pCurrentGroup->IsEmpty() ) {
     if ( m_pCurrentGroup != m_pRootGroup ) {
       wxFileConfigGroup *pGroup = m_pCurrentGroup;
       SetPath(wxT(".."));  // changes m_pCurrentGroup!
-      if ( m_pCurrentGroup->DeleteSubgroupByName(pGroup->Name()) )
-          SetDirty();
+      m_pCurrentGroup->DeleteSubgroupByName(pGroup->Name());
     }
     //else: never delete the root group
   }
@@ -1256,6 +1289,9 @@ void wxFileConfig::LineListRemove(wxFileConfigLineList *pLine)
     else
         pNext->SetPrev(pPrev);
 
+    if ( m_pRootGroup->GetGroupLine() == pLine )
+        m_pRootGroup->SetLine(m_linesHead);
+
     wxLogTrace( FILECONF_TRACE_MASK,
                 _T("        head: %s"),
                 ((m_linesHead) ? m_linesHead->Text().c_str() : wxEmptyString) );
@@ -1315,7 +1351,11 @@ wxFileConfigGroup::~wxFileConfigGroup()
 
 void wxFileConfigGroup::SetLine(wxFileConfigLineList *pLine)
 {
-    wxASSERT( m_pLine == 0 ); // shouldn't be called twice
+    // for a normal (i.e. not root) group this method shouldn't be called twice
+    // unless we are resetting the line
+    wxASSERT_MSG( !m_pParent || !m_pLine || !pLine,
+                   _T("changing line for a non-root group?") );
+
     m_pLine = pLine;
 }
 
@@ -1839,20 +1879,11 @@ void wxFileConfigEntry::SetValue(const wxString& strValue, bool bUser)
         }
         else // this entry didn't exist in the local file
         {
-            // add a new line to the file: note the hack for the root group
-            // which is special in that it doesn't have its own group line
-            // (something like "[/]") and so the line we get for it may be not
-            // its line at all if it doesn't have any entries
-            //
-            // this is definitely not the right place to fix it but changing
-            // the root group to have NULL m_pLine will probably break too
-            // much stuff elsewhere so I don't dare to do it...
+            // add a new line to the file: note that line returned by
+            // GetLastEntryLine() may be NULL if we're in the root group and it
+            // doesn't have any entries yet, but this is ok as passing NULL
+            // line to LineListInsert() means to prepend new line to the list
             wxFileConfigLineList *line = Group()->GetLastEntryLine();
-            if ( !Group()->Parent() && line == Group()->GetGroupLine() )
-            {
-                // prepend the first root group entry to the head of the list
-                line = NULL;
-            }
             m_pLine = Group()->Config()->LineListInsert(strLine, line);
 
             Group()->SetLastEntry(this);