/******************************************************************************** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).** All rights reserved.** Contact: Nokia Corporation (qt-info@nokia.com)**** This file is part of the QtGui module of the Qt Toolkit.**** $QT_BEGIN_LICENSE:LGPL$** No Commercial Usage** This file contains pre-release code and may not be distributed.** You may use this file in accordance with the terms and conditions** contained in the Technology Preview License Agreement accompanying** this package.**** GNU Lesser General Public License Usage** Alternatively, this file may be used under the terms of the GNU Lesser** General Public License version 2.1 as published by the Free Software** Foundation and appearing in the file LICENSE.LGPL included in the** packaging of this file. Please review the following information to** ensure the GNU Lesser General Public License version 2.1 requirements** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.**** In addition, as a special exception, Nokia gives you certain additional** rights. These rights are described in the Nokia Qt LGPL Exception** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.**** If you have questions regarding the use of this file, please contact** Nokia at qt-info@nokia.com.****************** $QT_END_LICENSE$******************************************************************************/#ifndef QUNDOSTACK_P_H#define QUNDOSTACK_P_H#include <private/qobject_p.h>#include <QtCore/qlist.h>#include <QtCore/qstring.h>#include <QtGui/qaction.h>#include "qundostack.h"QT_BEGIN_NAMESPACEclass QUndoCommand;class QUndoGroup;//// W A R N I N G// -------------//// This file is not part of the Qt API. It exists for the convenience// of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp. This header// file may change from version to version without notice, or even be removed.//// We mean it.//class QUndoCommandPrivate{public: QUndoCommandPrivate() : id(-1) {} QList<QUndoCommand*> child_list; QString text; int id;};#ifndef QT_NO_UNDOSTACKclass QUndoStackPrivate : public QObjectPrivate{ Q_DECLARE_PUBLIC(QUndoStack)public: QUndoStackPrivate() : index(0), clean_index(0), group(0), undo_limit(0) {} QList<QUndoCommand*> command_list; QList<QUndoCommand*> macro_stack; int index; int clean_index; QUndoGroup *group; int undo_limit; void setIndex(int idx, bool clean); bool checkUndoLimit();};#ifndef QT_NO_ACTIONclass QUndoAction : public QAction{ Q_OBJECTpublic: QUndoAction(const QString &prefix, QObject *parent = 0);public Q_SLOTS: void setPrefixedText(const QString &text);private: QString m_prefix;};#endif // QT_NO_ACTIONQT_END_NAMESPACE#endif // QT_NO_UNDOSTACK#endif // QUNDOSTACK_P_H