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tdepim/kmail/undostack.h

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/*
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