1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 Jochen Becher 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of Qt Creator. 7 ** 8 ** Commercial License Usage 9 ** Licensees holding valid commercial Qt licenses may use this file in 10 ** accordance with the commercial license agreement provided with the 11 ** Software or, alternatively, in accordance with the terms contained in 12 ** a written agreement between you and The Qt Company. For licensing terms 13 ** and conditions see https://www.qt.io/terms-conditions. For further 14 ** information use the contact form at https://www.qt.io/contact-us. 15 ** 16 ** GNU General Public License Usage 17 ** Alternatively, this file may be used under the terms of the GNU 18 ** General Public License version 3 as published by the Free Software 19 ** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT 20 ** included in the packaging of this file. Please review the following 21 ** information to ensure the GNU General Public License requirements will 22 ** be met: https://www.gnu.org/licenses/gpl-3.0.html. 23 ** 24 ****************************************************************************/ 25 26 #pragma once 27 28 #include <QObject> 29 #include "qmt/infrastructure/qmt_global.h" 30 31 QT_BEGIN_NAMESPACE 32 class QUndoStack; 33 QT_END_NAMESPACE 34 35 namespace qmt { 36 37 class UndoCommand; 38 39 class QMT_EXPORT UndoController : public QObject 40 { 41 Q_OBJECT 42 43 public: 44 explicit UndoController(QObject *parent = nullptr); 45 ~UndoController() override; 46 undoStack()47 QUndoStack *undoStack() const { return m_undoStack; } 48 49 void push(UndoCommand *cmd); 50 void beginMergeSequence(const QString &text); 51 void endMergeSequence(); 52 53 void reset(); 54 void doNotMerge(); 55 56 private: 57 QUndoStack *m_undoStack = nullptr; 58 bool m_doNotMerge = false; 59 }; 60 61 } // namespace qmt 62