| /**************************************************************************** |
| ** |
| ** Copyright (C) 2015 The Qt Company Ltd. |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtCore module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL21$ |
| ** 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 |
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| ** information use the contact form at http://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 2.1 or version 3 as published by the Free |
| ** Software Foundation and appearing in the file LICENSE.LGPLv21 and |
| ** LICENSE.LGPLv3 included in the packaging of this file. Please review the |
| ** following information to ensure the GNU Lesser General Public License |
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| ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
| ** |
| ** As a special exception, The Qt Company gives you certain additional |
| ** rights. These rights are described in The Qt Company LGPL Exception |
| ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QSTATE_H |
| #define QSTATE_H |
| |
| #include <QtCore/qabstractstate.h> |
| #include <QtCore/qlist.h> |
| #include <QtCore/qmetaobject.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| |
| #ifndef QT_NO_STATEMACHINE |
| |
| class QAbstractTransition; |
| class QSignalTransition; |
| |
| class QStatePrivate; |
| class Q_CORE_EXPORT QState : public QAbstractState |
| { |
| Q_OBJECT |
| Q_PROPERTY(QAbstractState* initialState READ initialState WRITE setInitialState NOTIFY initialStateChanged) |
| Q_PROPERTY(QAbstractState* errorState READ errorState WRITE setErrorState NOTIFY errorStateChanged) |
| Q_PROPERTY(ChildMode childMode READ childMode WRITE setChildMode NOTIFY childModeChanged) |
| public: |
| enum ChildMode { |
| ExclusiveStates, |
| ParallelStates |
| }; |
| Q_ENUM(ChildMode) |
| |
| enum RestorePolicy { |
| DontRestoreProperties, |
| RestoreProperties |
| }; |
| Q_ENUM(RestorePolicy) |
| |
| QState(QState *parent = 0); |
| QState(ChildMode childMode, QState *parent = 0); |
| ~QState(); |
| |
| QAbstractState *errorState() const; |
| void setErrorState(QAbstractState *state); |
| |
| void addTransition(QAbstractTransition *transition); |
| QSignalTransition *addTransition(const QObject *sender, const char *signal, QAbstractState *target); |
| #ifdef Q_QDOC |
| QSignalTransition *addTransition(const QObject *sender, PointerToMemberFunction signal, |
| QAbstractState *target); |
| #else |
| template <typename Func> |
| QSignalTransition *addTransition(const typename QtPrivate::FunctionPointer<Func>::Object *obj, |
| Func signal, QAbstractState *target) |
| { |
| const QMetaMethod signalMetaMethod = QMetaMethod::fromSignal(signal); |
| return addTransition(obj, signalMetaMethod.methodSignature().constData(), target); |
| } |
| #endif // Q_QDOC |
| QAbstractTransition *addTransition(QAbstractState *target); |
| void removeTransition(QAbstractTransition *transition); |
| QList<QAbstractTransition*> transitions() const; |
| |
| QAbstractState *initialState() const; |
| void setInitialState(QAbstractState *state); |
| |
| ChildMode childMode() const; |
| void setChildMode(ChildMode mode); |
| |
| #ifndef QT_NO_PROPERTIES |
| void assignProperty(QObject *object, const char *name, |
| const QVariant &value); |
| #endif |
| |
| Q_SIGNALS: |
| void finished(QPrivateSignal); |
| void propertiesAssigned(QPrivateSignal); |
| void childModeChanged(QPrivateSignal); |
| void initialStateChanged(QPrivateSignal); |
| void errorStateChanged(QPrivateSignal); |
| |
| protected: |
| void onEntry(QEvent *event) Q_DECL_OVERRIDE; |
| void onExit(QEvent *event) Q_DECL_OVERRIDE; |
| |
| bool event(QEvent *e) Q_DECL_OVERRIDE; |
| |
| protected: |
| QState(QStatePrivate &dd, QState *parent); |
| |
| private: |
| Q_DISABLE_COPY(QState) |
| Q_DECLARE_PRIVATE(QState) |
| }; |
| |
| #endif //QT_NO_STATEMACHINE |
| |
| QT_END_NAMESPACE |
| |
| #endif |