1 files changed, 46 insertions, 0 deletions
diff --git a/src/modules/UserListManager/UserListDiff.cpp b/src/modules/UserListManager/UserListDiff.cpp
new file mode 100644
index 0000000..a7b5f2f
--- /dev/null
+++ b/src/modules/UserListManager/UserListDiff.cpp
@@ -0,0 +1,46 @@
+/*
+ * UserListDiff.cpp
+ *
+ * Copyright (C) 2009 Matthias Schiffer <matthias@gamezock.de>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "UserListDiff.h"
+#include "UserList.h"
+
+namespace Mad {
+namespace Modules {
+namespace UserListManager {
+
+UserListDiff::UserListDiff(const UserList *oldList, const UserList *newList) {
+  for(UserList::const_iterator user = oldList->begin(); user != oldList->end(); ++user)
+    deletedUsers.insert(*user);
+
+  for(UserList::const_iterator user = newList->begin(); user != newList->end(); ++user) {
+    std::set<UserListEntry>::const_iterator it = deletedUsers.find(*user);
+
+    if(it != deletedUsers.end()) {
+      deletedUsers.erase(it);
+      unchangedUsers.insert(*user);
+    }
+    else {
+      addedUsers.insert(*user);
+    }
+  }
+}
+
+}
+}
+}