Attempt to make wxWindows play better with XP themes

[wxWidgets.git] / src / msw / registry.cpp

diff --git a/src/msw/registry.cpp b/src/msw/registry.cpp
index 978d7ee4faa7e2464f44185fd866e380ce4ff808..c0f5e6a304755f88785cfadecd584d8289531def 100644 (file)
--- a/src/msw/registry.cpp
+++ b/src/msw/registry.cpp
@@ -6,7 +6,7 @@
 // Created:     03.04.98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 // TODO:        - parsing of registry key names
 //              - support of other (than REG_SZ/REG_DWORD) registry types
 //              - add high level functions (RegisterOleServer, ...)
@@ -91,12 +91,12 @@ aStdKeys[] =
 // ----------------------------------------------------------------------------
 // macros
 // ----------------------------------------------------------------------------
-// @ const_cast<> is not yet supported by all compilers
+
+// const_cast<> is not yet supported by all compilers
 #define CONST_CAST    ((wxRegKey *)this)->
 
-#if   !USE_MUTABLE
-  #define m_dwLastError   CONST_CAST m_dwLastError
-#endif
+// and neither is mutable which m_dwLastError should be
+#define m_dwLastError   CONST_CAST m_dwLastError
 
 // ----------------------------------------------------------------------------
 // non member functions
@@ -186,16 +186,16 @@ wxRegKey::StdKey wxRegKey::GetStdKeyFromHkey(WXHKEY hkey)
 
 wxRegKey::wxRegKey()
 {
-  m_hKey = 0;
   m_hRootKey = (WXHKEY) aStdKeys[HKCR].hkey;
-  m_dwLastError = 0;
+
+  Init();
 }
 
 wxRegKey::wxRegKey(const wxString& strKey) : m_strKey(strKey)
 {
   m_hRootKey  = (WXHKEY) aStdKeys[ExtractKeyName(m_strKey)].hkey;
-  m_hKey      = (WXHKEY) NULL;
-  m_dwLastError = 0;
+
+  Init();
 }
 
 // parent is a predefined (and preopened) key
@@ -203,8 +203,8 @@ wxRegKey::wxRegKey(StdKey keyParent, const wxString& strKey) : m_strKey(strKey)
 {
   RemoveTrailingSeparator(m_strKey);
   m_hRootKey  = (WXHKEY) aStdKeys[keyParent].hkey;
-  m_hKey      = (WXHKEY) NULL;
-  m_dwLastError = 0;
+
+  Init();
 }
 
 // parent is a normal regkey
@@ -221,8 +221,8 @@ wxRegKey::wxRegKey(const wxRegKey& keyParent, const wxString& strKey)
   RemoveTrailingSeparator(m_strKey);
 
   m_hRootKey  = keyParent.m_hRootKey;
-  m_hKey      = (WXHKEY) NULL;
-  m_dwLastError = 0;
+
+  Init();
 }
 
 // dtor closes the key releasing system resource
@@ -260,7 +260,14 @@ void wxRegKey::SetName(const wxRegKey& keyParent, const wxString& strKey)
   Close();
 
   // combine our name with parent's to get the full name
-  m_strKey = keyParent.m_strKey;
+
+  // NB: this method is called by wxRegConfig::SetPath() which is a performance
+  //     critical function and so it preallocates space for our m_strKey to
+  //     gain some speed - this is why we only use += here and not = which
+  //     would just free the prealloc'd buffer and would have to realloc it the
+  //     next line!
+  m_strKey.clear();
+  m_strKey += keyParent.m_strKey;
   if ( !strKey.IsEmpty() && strKey[0] != REG_SEPARATOR )
     m_strKey += REG_SEPARATOR;
   m_strKey += strKey;
@@ -292,11 +299,11 @@ bool wxRegKey::Exists() const
 // returns the full name of the key (prefix is abbreviated if bShortPrefix)
 wxString wxRegKey::GetName(bool bShortPrefix) const
 {
-  StdKey key = GetStdKeyFromHkey((StdKey) m_hRootKey);
+  StdKey key = GetStdKeyFromHkey((WXHKEY) m_hRootKey);
   wxString str = bShortPrefix ? aStdKeys[key].szShortName
                               : aStdKeys[key].szName;
   if ( !m_strKey.IsEmpty() )
-    str << "\\" << m_strKey;
+    str << _T("\\") << m_strKey;
 
   return str;
 }
@@ -306,10 +313,10 @@ bool wxRegKey::GetKeyInfo(size_t *pnSubKeys,
                           size_t *pnValues,
                           size_t *pnMaxValueLen) const
 {
-#if defined(__WIN32__) && !defined(__TWIN32__)
+#if defined(__WIN32__)
 
     // old gcc headers incorrectly prototype RegQueryInfoKey()
-#ifdef __GNUWIN32_OLD__
+#if defined(__GNUWIN32_OLD__) && !defined(__CYGWIN10__)
     #define REG_PARAM   (size_t *)
 #else
     #define REG_PARAM   (LPDWORD)
@@ -408,16 +415,14 @@ bool wxRegKey::Close()
 {
   if ( IsOpened() ) {
     m_dwLastError = RegCloseKey((HKEY) m_hKey);
+    m_hKey = 0;
+
     if ( m_dwLastError != ERROR_SUCCESS ) {
       wxLogSysError(m_dwLastError, _("Can't close registry key '%s'"),
                     GetName().c_str());
 
-      m_hKey = 0;
       return FALSE;
     }
-    else {
-      m_hKey = 0;
-    }
   }
 
   return TRUE;
@@ -675,14 +680,14 @@ bool wxRegKey::DeleteValue(const wxChar *szValue)
   if ( !Open() )
     return FALSE;
 
-#if defined(__WIN32__) && !defined(__TWIN32__)
+#if defined(__WIN32__)
     m_dwLastError = RegDeleteValue((HKEY) m_hKey, WXSTRINGCAST szValue);
     if ( m_dwLastError != ERROR_SUCCESS ) {
       wxLogSysError(m_dwLastError, _("Can't delete value '%s' from key '%s'"),
                     szValue, GetName().c_str());
       return FALSE;
     }
-  #else   //WIN16
+#else   //WIN16
     // named registry values don't exist in Win16 world
     wxASSERT( IsEmpty(szValue) );
 
@@ -693,7 +698,7 @@ bool wxRegKey::DeleteValue(const wxChar *szValue)
                     GetName().c_str());
       return FALSE;
     }
-  #endif  //WIN16/32
+#endif  //WIN16/32
 
   return TRUE;
 }
@@ -783,10 +788,6 @@ wxRegKey::ValueType wxRegKey::GetValueType(const wxChar *szValue) const
 #ifdef  __WIN32__
 bool wxRegKey::SetValue(const wxChar *szValue, long lValue)
 {
-#ifdef __TWIN32__
-  wxFAIL_MSG("RegSetValueEx not implemented by TWIN32");
-  return FALSE;
-#else
   if ( CONST_CAST Open() ) {
     m_dwLastError = RegSetValueEx((HKEY) m_hKey, szValue, (DWORD) RESERVED, REG_DWORD,
                                   (RegString)&lValue, sizeof(lValue));
@@ -797,7 +798,6 @@ bool wxRegKey::SetValue(const wxChar *szValue, long lValue)
   wxLogSysError(m_dwLastError, _("Can't set value of '%s'"),
                 GetFullName(this, szValue));
   return FALSE;
-#endif
 }
 
 bool wxRegKey::QueryValue(const wxChar *szValue, long *plValue) const
@@ -904,20 +904,20 @@ bool wxRegKey::QueryValue(const wxChar *szValue,
 bool wxRegKey::SetValue(const wxChar *szValue, const wxString& strValue)
 {
   if ( CONST_CAST Open() ) {
-#if defined( __WIN32__) && !defined(__TWIN32__)
+#if defined( __WIN32__)
       m_dwLastError = RegSetValueEx((HKEY) m_hKey, szValue, (DWORD) RESERVED, REG_SZ,
                                     (RegString)strValue.c_str(),
                                     (strValue.Len() + 1)*sizeof(wxChar));
       if ( m_dwLastError == ERROR_SUCCESS )
         return TRUE;
-    #else   //WIN16
+#else   //WIN16
       // named registry values don't exist in Win16
       wxASSERT( IsEmpty(szValue) );
 
       m_dwLastError = RegSetValue((HKEY) m_hKey, NULL, REG_SZ, strValue, NULL);
       if ( m_dwLastError == ERROR_SUCCESS )
         return TRUE;
-    #endif  //WIN16/32
+#endif  //WIN16/32
   }
 
   wxLogSysError(m_dwLastError, _("Can't set value of '%s'"),
@@ -925,7 +925,7 @@ bool wxRegKey::SetValue(const wxChar *szValue, const wxString& strValue)
   return FALSE;
 }
 
-wxRegKey::operator wxString() const
+wxString wxRegKey::QueryDefaultValue() const
 {
   wxString str;
   QueryValue(NULL, str);
@@ -955,7 +955,7 @@ bool wxRegKey::GetNextValue(wxString& strValueName, long& lIndex) const
   if ( lIndex == -1 )
     return FALSE;
 
-#if defined( __WIN32__) && !defined(__TWIN32__)
+#if defined( __WIN32__)
     wxChar  szValueName[1024];                  // @@ use RegQueryInfoKey...
     DWORD dwValueLen = WXSIZEOF(szValueName);
 
@@ -980,13 +980,13 @@ bool wxRegKey::GetNextValue(wxString& strValueName, long& lIndex) const
     }
 
     strValueName = szValueName;
-  #else   //WIN16
+#else   //WIN16
     // only one unnamed value
     wxASSERT( lIndex == 0 );
 
     lIndex = -1;
     strValueName.Empty();
-  #endif
+#endif
 
   return TRUE;
 }