1 files changed, 72 insertions, 0 deletions
diff --git a/kmail/undostack.h b/kmail/undostack.h
new file mode 100644
index 000000000..78c993fb7
--- /dev/null
+++ b/kmail/undostack.h
@@ -0,0 +1,72 @@
+/*
+    This file is part of KMail
+
+    Copyright (C) 1999 Waldo Bastian (bastian@kde.org)
+    Copyright (c) 2003 Zack Rusin <zack@kde.org>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License
+    version 2 as published by the Free Software Foundation.
+
+    This software 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
+    General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this library; see the file COPYING. If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#ifndef UNDOSTACK_H
+#define UNDOSTACK_H
+
+#include <qptrlist.h>
+#include <qstring.h>
+#include <qobject.h>
+
+class KMFolder;
+class KMMsgBase;
+
+namespace KMail {
+
+/** A class for storing Undo information. */
+class UndoInfo
+{
+public:
+  int               id;
+  QValueList<ulong> serNums;
+  KMFolder         *srcFolder;
+  KMFolder         *destFolder;
+};
+
+class UndoStack : public QObject
+{
+  Q_OBJECT
+
+public:
+  UndoStack(int size);
+
+  void clear();
+  int  size() const { return mStack.count(); }
+  int  newUndoAction( KMFolder* srcFolder, KMFolder* destFolder );
+  void addMsgToAction( int undoId, ulong serNum );
+  void undo();
+
+  void pushSingleAction(ulong serNum, KMFolder *folder, KMFolder* destFolder);
+  void msgDestroyed( KMMsgBase *msg);
+  void folderDestroyed( KMFolder *folder);
+protected:
+  QPtrList<UndoInfo> mStack;
+  int mSize;
+  int mLastId;
+  UndoInfo *mCachedInfo;
+
+signals:
+   void undoStackChanged();
+};
+
+}
+
+#endif