1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2015 The Qt Company Ltd. 4 ** Contact: http://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtCore module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see http://www.qt.io/terms-conditions. For further 15 ** information use the contact form at http://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 2.1 or version 3 as published by the Free 20 ** Software Foundation and appearing in the file LICENSE.LGPLv21 and 21 ** LICENSE.LGPLv3 included in the packaging of this file. Please review the 22 ** following information to ensure the GNU Lesser General Public License 23 ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and 24 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 25 ** 26 ** As a special exception, The Qt Company gives you certain additional 27 ** rights. These rights are described in The Qt Company LGPL Exception 28 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. 29 ** 30 ** GNU General Public License Usage 31 ** Alternatively, this file may be used under the terms of the GNU 32 ** General Public License version 3.0 as published by the Free Software 33 ** Foundation and appearing in the file LICENSE.GPL included in the 34 ** packaging of this file. Please review the following information to 35 ** ensure the GNU General Public License version 3.0 requirements will be 36 ** met: http://www.gnu.org/copyleft/gpl.html. 37 ** 38 ** $QT_END_LICENSE$ 39 ** 40 ****************************************************************************/ 41 42 #ifndef QHISTORYSTATE_H 43 #define QHISTORYSTATE_H 44 45 #include <QtCore/qabstractstate.h> 46 47 QT_BEGIN_HEADER 48 49 QT_BEGIN_NAMESPACE 50 QT_MODULE(Core)51QT_MODULE(Core) 52 53 #ifndef QT_NO_STATEMACHINE 54 55 class QHistoryStatePrivate; 56 class Q_CORE_EXPORT QHistoryState : public QAbstractState 57 { 58 Q_OBJECT 59 Q_PROPERTY(QAbstractState* defaultState READ defaultState WRITE setDefaultState) 60 Q_PROPERTY(HistoryType historyType READ historyType WRITE setHistoryType) 61 Q_ENUMS(HistoryType) 62 public: 63 enum HistoryType { 64 ShallowHistory, 65 DeepHistory 66 }; 67 68 QHistoryState(QState *parent = 0); 69 QHistoryState(HistoryType type, QState *parent = 0); 70 ~QHistoryState(); 71 72 QAbstractState *defaultState() const; 73 void setDefaultState(QAbstractState *state); 74 75 HistoryType historyType() const; 76 void setHistoryType(HistoryType type); 77 78 protected: 79 void onEntry(QEvent *event); 80 void onExit(QEvent *event); 81 82 bool event(QEvent *e); 83 84 private: 85 Q_DISABLE_COPY(QHistoryState) 86 Q_DECLARE_PRIVATE(QHistoryState) 87 }; 88 89 #endif //QT_NO_STATEMACHINE 90 91 QT_END_NAMESPACE 92 93 QT_END_HEADER 94 95 #endif 96