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/****************************************************************************
**
** Copyright (C) 2009 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 QUNDOGROUP_H
#define QUNDOGROUP_H
#include <QtCore/qobject.h>
#include <QtCore/qstring.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QUndoGroupPrivate;
class QUndoStack;
class QAction;
QT_MODULE(Gui)
#ifndef QT_NO_UNDOGROUP
class Q_GUI_EXPORT QUndoGroup : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QUndoGroup)
public:
explicit QUndoGroup(QObject *parent = 0);
~QUndoGroup();
void addStack(QUndoStack *stack);
void removeStack(QUndoStack *stack);
QList<QUndoStack*> stacks() const;
QUndoStack *activeStack() const;
#ifndef QT_NO_ACTION
QAction *createUndoAction(QObject *parent,
const QString &prefix = QString()) const;
QAction *createRedoAction(QObject *parent,
const QString &prefix = QString()) const;
#endif // QT_NO_ACTION
bool canUndo() const;
bool canRedo() const;
QString undoText() const;
QString redoText() const;
bool isClean() const;
public Q_SLOTS:
void undo();
void redo();
void setActiveStack(QUndoStack *stack);
Q_SIGNALS:
void activeStackChanged(QUndoStack *stack);
void indexChanged(int idx);
void cleanChanged(bool clean);
void canUndoChanged(bool canUndo);
void canRedoChanged(bool canRedo);
void undoTextChanged(const QString &undoText);
void redoTextChanged(const QString &redoText);
private:
Q_DISABLE_COPY(QUndoGroup)
};
#endif // QT_NO_UNDOGROUP
QT_END_NAMESPACE
QT_END_HEADER
#endif // QUNDOGROUP_H
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