another GetInt/GetId bug fix

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

diff --git a/src/msw/registry.cpp b/src/msw/registry.cpp
index a3326ec89964cf87dc170c8f583b97a60cead97e..a761867e7df6cce8dd08a7e6c3df23697e54f900 100644 (file)
--- a/src/msw/registry.cpp
+++ b/src/msw/registry.cpp
@@ -43,7 +43,7 @@
 #include  <stdlib.h>      // for _MAX_PATH
 
 #ifndef _MAX_PATH
-       #define _MAX_PATH 512
+    #define _MAX_PATH 512
 #endif
 
 // our header
@@ -143,7 +143,7 @@ const wxChar *wxRegKey::GetStdKeyShortName(size_t key)
 
 wxRegKey::StdKey wxRegKey::ExtractKeyName(wxString& strKey)
 {
-  wxString strRoot = strKey.Left(REG_SEPARATOR);
+  wxString strRoot = strKey.BeforeFirst(REG_SEPARATOR);
 
   HKEY hRootKey = 0;
   size_t ui;
@@ -430,7 +430,9 @@ bool wxRegKey::RenameValue(const wxChar *szValueOld, const wxChar *szValueNew)
         ok = FALSE;
     }
 
-    if ( !ok || !CopyValue(szValueOld, *this, szValueNew) ) {
+    if ( !ok ||
+         !CopyValue(szValueOld, *this, szValueNew) ||
+         !DeleteValue(szValueOld) ) {
         wxLogError(_("Failed to rename registry value '%s' to '%s'."),
                    szValueOld, szValueNew);
 
@@ -487,10 +489,65 @@ bool wxRegKey::CopyValue(const wxChar *szValue,
     }
 }
 
-bool wxRegKey::Copy(const wxString& strNewName)
+bool wxRegKey::Rename(const wxChar *szNewName)
+{
+    wxCHECK_MSG( !!m_strKey, FALSE, _T("registry hives can't be renamed") );
+
+    if ( !Exists() ) {
+        wxLogError(_("Registry key '%s' does not exist, cannot rename it."),
+                   GetFullName(this));
+
+        return FALSE;
+    }
+
+    // do we stay in the same hive?
+    bool inSameHive = !wxStrchr(szNewName, REG_SEPARATOR);
+
+    // construct the full new name of the key
+    wxRegKey keyDst;
+
+    if ( inSameHive ) {
+        // rename the key to the new name under the same parent
+        wxString strKey = m_strKey.BeforeLast(REG_SEPARATOR);
+        if ( !!strKey ) {
+            // don't add '\\' in the start if strFullNewName is empty
+            strKey += REG_SEPARATOR;
+        }
+
+        strKey += szNewName;
+
+        keyDst.SetName(GetStdKeyFromHkey(m_hRootKey), strKey);
+    }
+    else {
+        // this is the full name already
+        keyDst.SetName(szNewName);
+    }
+
+    bool ok = keyDst.Create(FALSE /* fail if alredy exists */);
+    if ( !ok ) {
+        wxLogError(_("Registry key '%s' already exists."),
+                   GetFullName(&keyDst));
+    }
+    else {
+        ok = Copy(keyDst) && DeleteSelf();
+    }
+
+    if ( !ok ) {
+        wxLogError(_("Failed to rename the registry key '%s' to '%s'."),
+                   GetFullName(this), GetFullName(&keyDst));
+    }
+    else {
+        m_hRootKey = keyDst.m_hRootKey;
+        m_strKey = keyDst.m_strKey;
+    }
+
+    return ok;
+}
+
+bool wxRegKey::Copy(const wxChar *szNewName)
 {
     // create the new key first
-    wxRegKey keyDst(strNewName);
+    wxRegKey keyDst(szNewName);
     bool ok = keyDst.Create(FALSE /* fail if alredy exists */);
     if ( ok ) {
         ok = Copy(keyDst);
@@ -516,7 +573,7 @@ bool wxRegKey::Copy(wxRegKey& keyDst)
         wxRegKey key(*this, strKey);
         wxString keyName;
         keyName << GetFullName(&keyDst) << REG_SEPARATOR << strKey;
-        ok = key.Copy(keyName);
+        ok = key.Copy((const wxChar*) keyName);
 
         if ( ok )
             bCont = GetNextKey(strKey, lIndex);
@@ -539,8 +596,7 @@ bool wxRegKey::Copy(wxRegKey& keyDst)
     }
 
     if ( !ok ) {
-        wxLogError(_("Failed to copy the contents of registry key '%s' to "
-                     "'%s'."), GetFullName(this), GetFullName(&keyDst));
+        wxLogError(_("Failed to copy the contents of registry key '%s' to '%s'."), GetFullName(this), GetFullName(&keyDst));
     }
 
     return ok;
@@ -564,9 +620,7 @@ bool wxRegKey::DeleteSelf()
   // key except HKCR (HKCR has some "deleteable" subkeys)
   if ( m_strKey.IsEmpty() || (m_hRootKey != HKCR &&
        m_strKey.Find(REG_SEPARATOR) == wxNOT_FOUND) ) {
-      wxLogError(_("Registry key '%s' is needed for normal system operation,\n"
-                   "deleting it will leave your system in unusable state:\n"
-                   "operation aborted."), GetFullName(this));
+      wxLogError(_("Registry key '%s' is needed for normal system operation,\ndeleting it will leave your system in unusable state:\noperation aborted."), GetFullName(this));
 
       return FALSE;
   }
@@ -652,12 +706,14 @@ bool wxRegKey::HasValue(const wxChar *szValue) const
   wxLogNull nolog;
 
   #ifdef  __WIN32__
-    if ( CONST_CAST Open() ) {
-      return RegQueryValueEx((HKEY) m_hKey, WXSTRINGCAST szValue, RESERVED,
-                             NULL, NULL, NULL) == ERROR_SUCCESS;
-    }
-    else
-      return FALSE;
+    if ( !CONST_CAST Open() )
+        return FALSE;
+
+    LONG dwRet = ::RegQueryValueEx((HKEY) m_hKey,
+                                   WXSTRINGCAST szValue,
+                                   RESERVED,
+                                   NULL, NULL, NULL);
+    return dwRet == ERROR_SUCCESS;
   #else   // WIN16
     // only unnamed value exists
     return IsEmpty(szValue);
@@ -694,10 +750,10 @@ bool wxRegKey::HasSubKey(const wxChar *szKey) const
   // this function should be silent, so suppress possible messages from Open()
   wxLogNull nolog;
 
-  if ( CONST_CAST Open() )
-    return KeyExists(m_hKey, szKey);
-  else
+  if ( !CONST_CAST Open() )
     return FALSE;
+
+  return KeyExists(m_hKey, szKey);
 }
 
 wxRegKey::ValueType wxRegKey::GetValueType(const wxChar *szValue) const
@@ -822,7 +878,7 @@ bool wxRegKey::SetValue(const wxChar *szValue, const wxString& strValue)
 #if defined( __WIN32__) && !defined(__TWIN32__)
       m_dwLastError = RegSetValueEx((HKEY) m_hKey, szValue, (DWORD) RESERVED, REG_SZ,
                                     (RegString)strValue.c_str(),
-                                    strValue.Len() + 1);
+                                    (strValue.Len() + 1)*sizeof(wxChar));
       if ( m_dwLastError == ERROR_SUCCESS )
         return TRUE;
     #else   //WIN16
@@ -961,8 +1017,13 @@ bool wxRegKey::IsNumericValue(const wxChar *szValue) const
 // ============================================================================
 // implementation of global private functions
 // ============================================================================
+
 bool KeyExists(WXHKEY hRootKey, const wxChar *szKey)
 {
+  // don't close this key itself for the case of empty szKey!
+  if ( wxIsEmpty(szKey) )
+    return TRUE;
+
   HKEY hkeyDummy;
   if ( RegOpenKey( (HKEY) hRootKey, szKey, &hkeyDummy) == ERROR_SUCCESS ) {
     RegCloseKey(hkeyDummy);