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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QABSTRACTTRANSITION_H
#define QABSTRACTTRANSITION_H
#include <QtCore/qlist.h>
#include <QtCore/qobject.h>
#include <QtStateMachine/qstatemachineglobal.h>
QT_BEGIN_NAMESPACE
class QEvent;
class QAbstractState;
class QState;
class QStateMachine;
#if QT_CONFIG(animation)
class QAbstractAnimation;
#endif
class QAbstractTransitionPrivate;
class Q_STATEMACHINE_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
BINDABLE bindableTransitionType REVISION(1, 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);
QBindable<QAbstractTransition::TransitionType> bindableTransitionType();
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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