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- /****************************************************************************
- **
- ** Copyright (C) 2016 The Qt Company Ltd.
- ** Contact: https://www.qt.io/licensing/
- **
- ** This file is part of the QtWidgets module of the Qt Toolkit.
- **
- ** $QT_BEGIN_LICENSE:LGPL$
- ** Commercial License Usage
- ** Licensees holding valid commercial Qt licenses may use this file in
- ** accordance with the commercial license agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and The Qt Company. For licensing terms
- ** and conditions see https://www.qt.io/terms-conditions. For further
- ** information use the contact form at https://www.qt.io/contact-us.
- **
- ** GNU Lesser General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU Lesser
- ** General Public License version 3 as published by the Free Software
- ** Foundation and appearing in the file LICENSE.LGPL3 included in the
- ** packaging of this file. Please review the following information to
- ** ensure the GNU Lesser General Public License version 3 requirements
- ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License version 2.0 or (at your option) the GNU General
- ** Public license version 3 or any later version approved by the KDE Free
- ** Qt Foundation. The licenses are as published by the Free Software
- ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
- ** included in the packaging of this file. Please review the following
- ** information to ensure the GNU General Public License requirements will
- ** be met: https://www.gnu.org/licenses/gpl-2.0.html and
- ** https://www.gnu.org/licenses/gpl-3.0.html.
- **
- ** $QT_END_LICENSE$
- **
- ****************************************************************************/
- #ifndef QUNDOGROUP_H
- #define QUNDOGROUP_H
- #include <QtCore/qobject.h>
- #include <QtCore/qstring.h>
- QT_BEGIN_NAMESPACE
- class QUndoGroupPrivate;
- class QUndoStack;
- class QAction;
- #ifndef QT_NO_UNDOGROUP
- class Q_WIDGETS_EXPORT QUndoGroup : public QObject
- {
- Q_OBJECT
- Q_DECLARE_PRIVATE(QUndoGroup)
- public:
- explicit QUndoGroup(QObject *parent = Q_NULLPTR);
- ~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
- #endif // QUNDOGROUP_H
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