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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
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**
**
**
****************************************************************************/
#ifndef QABSTRACTTRANSITION_H
#define QABSTRACTTRANSITION_H
#include <QtCore/qobject.h>
#include <QtCore/qlist.h>
QT_REQUIRE_CONFIG(statemachine);
QT_BEGIN_NAMESPACE
class QEvent;
class QAbstractState;
class QState;
class QStateMachine;
#if QT_CONFIG(animation)
class QAbstractAnimation;
#endif
class QAbstractTransitionPrivate;
class Q_CORE_EXPORT QAbstractTransition : public QObject
{
Q_OBJECT
Q_PROPERTY(QState* sourceState READ sourceState)
Q_PROPERTY(QAbstractState* targetState READ targetState WRITE setTargetState NOTIFY targetStateChanged)
Q_PROPERTY(QList<QAbstractState*> targetStates READ targetStates WRITE setTargetStates NOTIFY targetStatesChanged)
Q_PROPERTY(TransitionType transitionType READ transitionType WRITE setTransitionType REVISION 1)
public:
enum TransitionType {
ExternalTransition,
InternalTransition
};
Q_ENUM(TransitionType)
QAbstractTransition(QState *sourceState = nullptr);
virtual ~QAbstractTransition();
QState *sourceState() const;
QAbstractState *targetState() const;
void setTargetState(QAbstractState* target);
QList<QAbstractState*> targetStates() const;
void setTargetStates(const QList<QAbstractState*> &targets);
TransitionType transitionType() const;
void setTransitionType(TransitionType type);
QStateMachine *machine() const;
#if QT_CONFIG(animation)
void addAnimation(QAbstractAnimation *animation);
void removeAnimation(QAbstractAnimation *animation);
QList<QAbstractAnimation*> animations() const;
#endif
Q_SIGNALS:
void triggered(QPrivateSignal);
void targetStateChanged(QPrivateSignal);
void targetStatesChanged(QPrivateSignal);
protected:
virtual bool eventTest(QEvent *event) = 0;
virtual void onTransition(QEvent *event) = 0;
bool event(QEvent *e) override;
protected:
QAbstractTransition(QAbstractTransitionPrivate &dd, QState *parent);
private:
Q_DISABLE_COPY(QAbstractTransition)
Q_DECLARE_PRIVATE(QAbstractTransition)
};
QT_END_NAMESPACE
#endif
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