X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/eaac8805cd0fc233aeb0fc40a31bf8d8e03bf59c..7e521b01c32d4f98de9f6b7624968ee4cdaada93:/src/msw/regconf.cpp

diff --git a/src/msw/regconf.cpp b/src/msw/regconf.cpp
index 2fa8685006..39a13a4bc4 100644
--- a/src/msw/regconf.cpp
+++ b/src/msw/regconf.cpp
@@ -6,10 +6,10 @@
 // Created:     27.04.98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
 #pragma implementation "regconf.h"
 #endif
 
@@ -43,7 +43,7 @@
 // ----------------------------------------------------------------------------
 
 // we put our data in HKLM\SOFTWARE_KEY\appname
-#define SOFTWARE_KEY    wxString("Software\\")
+#define SOFTWARE_KEY    wxString(wxT("Software\\"))
 
 // ----------------------------------------------------------------------------
 // global functions
@@ -124,7 +124,7 @@ wxRegConfig::wxRegConfig(const wxString& appName, const wxString& vendorName,
   m_keyLocal.ReserveMemoryForName(MEMORY_PREALLOC);
 
   m_keyLocalRoot.SetName(wxRegKey::HKCU, SOFTWARE_KEY + str);
-  m_keyLocal.SetName(m_keyLocalRoot, _T(""));
+  m_keyLocal.SetName(m_keyLocalRoot, wxEmptyString);
 
   if ( bDoUseGlobal )
   {
@@ -134,7 +134,7 @@ wxRegConfig::wxRegConfig(const wxString& appName, const wxString& vendorName,
     m_keyGlobal.ReserveMemoryForName(MEMORY_PREALLOC);
 
     m_keyGlobalRoot.SetName(wxRegKey::HKLM, SOFTWARE_KEY + str);
-    m_keyGlobal.SetName(m_keyGlobalRoot, _T(""));
+    m_keyGlobal.SetName(m_keyGlobalRoot, wxEmptyString);
   }
 
   // Create() will Open() if key already exists
@@ -148,8 +148,8 @@ wxRegConfig::wxRegConfig(const wxString& appName, const wxString& vendorName,
   if ( bDoUseGlobal )
   {
     wxLogNull nolog;
-    m_keyGlobalRoot.Open();
-    m_keyGlobal.Open();
+    m_keyGlobalRoot.Open(wxRegKey::Read);
+    m_keyGlobal.Open(wxRegKey::Read);
   }
 }
 
@@ -245,7 +245,8 @@ void wxRegConfig::SetPath(const wxString& strPath)
         size_t len = strFullPath.length();
         const wxChar *end = src + len;
 
-        wxChar *dst = m_strPath.GetWriteBuf(len);
+        wxStringBufferLength buf(m_strPath, len);
+        wxChar *dst = buf;
         wxChar *start = dst;
 
         for ( ; src < end; src++, dst++ )
@@ -274,6 +275,7 @@ void wxRegConfig::SetPath(const wxString& strPath)
                             // check the boundary condition below
 
                             // this is more efficient than strrchr()
+                            dst--;
                             while ( *dst != wxCONFIG_PATH_SEPARATOR )
                             {
                                 dst--;
@@ -288,10 +290,13 @@ void wxRegConfig::SetPath(const wxString& strPath)
                             posLastSlash = -1;
                         }
 
-                        // this shouldn't happen
+                        // we must have found a slash one way or another!
                         wxASSERT_MSG( *dst == wxCONFIG_PATH_SEPARATOR,
                                       _T("error in wxRegConfig::SetPath") );
 
+                        // stay at the same position
+                        dst--;
+
                         // we killed one
                         totalSlashes--;
                     }
@@ -333,8 +338,7 @@ void wxRegConfig::SetPath(const wxString& strPath)
         }
 
         *dst = _T('\0');
-
-        m_strPath.UngetWriteBuf(dst - start);
+        buf.SetLength(dst - start);
     }
 
 #ifdef WX_DEBUG_SET_PATH
@@ -346,21 +350,25 @@ void wxRegConfig::SetPath(const wxString& strPath)
 
     // registry APIs want backslashes instead of slashes
     wxString strRegPath;
-    size_t len = m_strPath.length();
+    if ( !m_strPath.empty() )
+    {
+        size_t len = m_strPath.length();
 
-    const wxChar *src = m_strPath.c_str();
-    wxChar *dst = strRegPath.GetWriteBuf(len);
+        const wxChar *src = m_strPath.c_str();
+        wxStringBufferLength buf(strRegPath, len);
+        wxChar *dst = buf;
 
-    const wxChar *end = src + len;
-    for ( ; src < end; src++, dst++ )
-    {
-        if ( *src == wxCONFIG_PATH_SEPARATOR )
-            *dst = _T('\\');
-        else
-            *dst = *src;
-    }
+        const wxChar *end = src + len;
+        for ( ; src < end; src++, dst++ )
+        {
+            if ( *src == wxCONFIG_PATH_SEPARATOR )
+                *dst = _T('\\');
+            else
+                *dst = *src;
+        }
 
-    strRegPath.UngetWriteBuf(len);
+        buf.SetLength(len);
+    }
 
     // this is not needed any longer as we don't create keys unnecessarily any
     // more (now it is done on demand, i.e. only when they're going to contain
@@ -378,13 +386,14 @@ void wxRegConfig::SetPath(const wxString& strPath)
 
     // change current key(s)
     m_keyLocal.SetName(m_keyLocalRoot, strRegPath);
-    m_keyGlobal.SetName(m_keyGlobalRoot, strRegPath);
 
-    // don't create it right now, wait until it is accessed
-    //m_keyLocal.Create();
+    if ( GetStyle() & wxCONFIG_USE_GLOBAL_FILE )
+    {
+      m_keyGlobal.SetName(m_keyGlobalRoot, strRegPath);
 
-    wxLogNull nolog;
-    m_keyGlobal.Open();
+      wxLogNull nolog;
+      m_keyGlobal.Open(wxRegKey::Read);
+    }
 }
 
 // ----------------------------------------------------------------------------
@@ -551,44 +560,10 @@ wxConfigBase::EntryType wxRegConfig::GetEntryType(const wxString& key) const
 // reading/writing
 // ----------------------------------------------------------------------------
 
-bool wxRegConfig::Read(const wxString& key, wxString *pStr) const
+bool wxRegConfig::DoReadString(const wxString& key, wxString *pStr) const
 {
-  wxConfigPathChanger path(this, key);
-
-  bool bQueryGlobal = TRUE;
-
-  // if immutable key exists in global key we must check that it's not
-  // overriden by the local key with the same name
-  if ( IsImmutable(path.Name()) ) {
-    if ( TryGetValue(m_keyGlobal, path.Name(), *pStr) ) {
-      if ( m_keyLocal.Exists() && LocalKey().HasValue(path.Name()) ) {
-        wxLogWarning(wxT("User value for immutable key '%s' ignored."),
-                   path.Name().c_str());
-      }
-     *pStr = wxConfigBase::ExpandEnvVars(*pStr);
-      return TRUE;
-    }
-    else {
-      // don't waste time - it's not there anyhow
-      bQueryGlobal = FALSE;
-    }
-  }
+    wxCHECK_MSG( pStr, FALSE, _T("wxRegConfig::Read(): NULL param") );
 
-  // first try local key
-  if ( (m_keyLocal.Exists() && TryGetValue(LocalKey(), path.Name(), *pStr)) ||
-       (bQueryGlobal && TryGetValue(m_keyGlobal, path.Name(), *pStr)) ) {
-    // nothing to do
-
-    *pStr = wxConfigBase::ExpandEnvVars(*pStr);
-    return TRUE;
-  }
-
-  return FALSE;
-}
-
-bool wxRegConfig::Read(const wxString& key, wxString *pStr,
-                       const wxString& szDefault) const
-{
   wxConfigPathChanger path(this, key);
 
   bool bQueryGlobal = TRUE;
@@ -613,25 +588,19 @@ bool wxRegConfig::Read(const wxString& key, wxString *pStr,
   // first try local key
   if ( (m_keyLocal.Exists() && TryGetValue(LocalKey(), path.Name(), *pStr)) ||
        (bQueryGlobal && TryGetValue(m_keyGlobal, path.Name(), *pStr)) ) {
-    *pStr = wxConfigBase::ExpandEnvVars(*pStr);
     return TRUE;
   }
-  else {
-    if ( IsRecordingDefaults() ) {
-      ((wxRegConfig*)this)->Write(key, szDefault);
-    }
-
-    // default value
-    *pStr = szDefault;
-  }
-
-  *pStr = wxConfigBase::ExpandEnvVars(*pStr);
 
   return FALSE;
 }
 
-bool wxRegConfig::Read(const wxString& key, long *plResult) const
+// this exactly reproduces the string version above except for ExpandEnvVars(),
+// we really should avoid this code duplication somehow...
+
+bool wxRegConfig::DoReadLong(const wxString& key, long *plResult) const
 {
+    wxCHECK_MSG( plResult, FALSE, _T("wxRegConfig::Read(): NULL param") );
+
   wxConfigPathChanger path(this, key);
 
   bool bQueryGlobal = TRUE;
@@ -658,10 +627,11 @@ bool wxRegConfig::Read(const wxString& key, long *plResult) const
        (bQueryGlobal && TryGetValue(m_keyGlobal, path.Name(), plResult)) ) {
     return TRUE;
   }
+
   return FALSE;
 }
 
-bool wxRegConfig::Write(const wxString& key, const wxString& szValue)
+bool wxRegConfig::DoWriteString(const wxString& key, const wxString& szValue)
 {
   wxConfigPathChanger path(this, key);
 
@@ -673,7 +643,7 @@ bool wxRegConfig::Write(const wxString& key, const wxString& szValue)
   return LocalKey().SetValue(path.Name(), szValue);
 }
 
-bool wxRegConfig::Write(const wxString& key, long lValue)
+bool wxRegConfig::DoWriteLong(const wxString& key, long lValue)
 {
   wxConfigPathChanger path(this, key);
 
@@ -718,7 +688,8 @@ bool wxRegConfig::RenameGroup(const wxString& oldName, const wxString& newName)
 // ----------------------------------------------------------------------------
 // deleting
 // ----------------------------------------------------------------------------
-bool wxRegConfig::DeleteEntry(const wxString& value, bool WXUNUSED(bGroupIfEmptyAlso))
+
+bool wxRegConfig::DeleteEntry(const wxString& value, bool bGroupIfEmptyAlso)
 {
   wxConfigPathChanger path(this, value);
 
@@ -726,9 +697,9 @@ bool wxRegConfig::DeleteEntry(const wxString& value, bool WXUNUSED(bGroupIfEmpty
     if ( !m_keyLocal.DeleteValue(path.Name()) )
       return FALSE;
 
-    if ( m_keyLocal.IsEmpty() ) {
+    if ( bGroupIfEmptyAlso && m_keyLocal.IsEmpty() ) {
       wxString strKey = GetPath().AfterLast(wxCONFIG_PATH_SEPARATOR);
-      SetPath("..");  // changes m_keyLocal
+      SetPath(_T(".."));  // changes m_keyLocal
       return LocalKey().DeleteKey(strKey);
     }
   }