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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick 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 QQUICKTRANSITION_H
#define QQUICKTRANSITION_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qquickstate_p.h"
#include <private/qabstractanimationjob_p.h>
#include <private/qqmlguard_p.h>
#include <qqml.h>
#include <QtCore/qobject.h>
QT_BEGIN_NAMESPACE
class QQuickAbstractAnimation;
class QQuickTransitionPrivate;
class QQuickTransitionManager;
class QQuickTransition;
class QQuickTransitionInstance : QAnimationJobChangeListener
{
public:
QQuickTransitionInstance(QQuickTransition *transition, QAbstractAnimationJob *anim);
~QQuickTransitionInstance();
void start();
void stop();
bool isRunning() const;
protected:
void animationStateChanged(QAbstractAnimationJob *, QAbstractAnimationJob::State, QAbstractAnimationJob::State) override;
void removeStateChangeListener()
{
m_anim->removeAnimationChangeListener(this, QAbstractAnimationJob::StateChange);
}
private:
QQmlGuard<QQuickTransition> m_transition;
QAbstractAnimationJob *m_anim;
friend class QQuickTransition;
};
class Q_QUICK_PRIVATE_EXPORT QQuickTransition : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QQuickTransition)
Q_PROPERTY(QString from READ fromState WRITE setFromState NOTIFY fromChanged)
Q_PROPERTY(QString to READ toState WRITE setToState NOTIFY toChanged)
Q_PROPERTY(bool reversible READ reversible WRITE setReversible NOTIFY reversibleChanged)
Q_PROPERTY(bool running READ running NOTIFY runningChanged)
Q_PROPERTY(QQmlListProperty<QQuickAbstractAnimation> animations READ animations)
Q_PROPERTY(bool enabled READ enabled WRITE setEnabled NOTIFY enabledChanged)
Q_CLASSINFO("DefaultProperty", "animations")
Q_CLASSINFO("DeferredPropertyNames", "animations")
QML_NAMED_ELEMENT(Transition)
public:
QQuickTransition(QObject *parent=nullptr);
~QQuickTransition();
QString fromState() const;
void setFromState(const QString &);
QString toState() const;
void setToState(const QString &);
bool reversible() const;
void setReversible(bool);
bool enabled() const;
void setEnabled(bool enabled);
bool running() const;
QQmlListProperty<QQuickAbstractAnimation> animations();
QQuickTransitionInstance *prepare(QQuickStateOperation::ActionList &actions,
QList<QQmlProperty> &after,
QQuickTransitionManager *end,
QObject *defaultTarget);
void setReversed(bool r);
Q_SIGNALS:
void fromChanged();
void toChanged();
void reversibleChanged();
void enabledChanged();
void runningChanged();
};
QT_END_NAMESPACE
QML_DECLARE_TYPE(QQuickTransition)
#endif // QQUICKTRANSITION_H
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