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// Copyright (C) 2022 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 QQMLPROPERTYTOPROPERTYBINDINDING_P_H
#define QQMLPROPERTYTOPROPERTYBINDINDING_P_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 <private/qqmlabstractbinding_p.h>
#include <private/qqmlnotifier_p.h>
#include <QtCore/qproperty.h>
QT_BEGIN_NAMESPACE
class Q_QML_EXPORT QQmlPropertyToPropertyBinding
: public QQmlAbstractBinding, public QQmlNotifierEndpoint
{
public:
QQmlPropertyToPropertyBinding(
QQmlEngine *engine, QObject *sourceObject, int sourcePropertyIndex,
QObject *targetObject, int targetPropertyIndex);
Kind kind() const final;
void setEnabled(bool e, QQmlPropertyData::WriteFlags flags) final;
void update(QQmlPropertyData::WriteFlags flags = QQmlPropertyData::DontRemoveBinding);
private:
static void trigger(QPropertyObserver *, QUntypedPropertyData *);
void captureProperty(
const QMetaObject *sourceMetaObject, int notifyIndex,
bool isSourceBindable, bool isTargetBindable);
struct Observer : QPropertyObserver {
static void trigger(QPropertyObserver *observer, QUntypedPropertyData *);
Observer(QQmlPropertyToPropertyBinding *binding)
: QPropertyObserver(trigger)
, binding(binding)
{
}
QQmlPropertyToPropertyBinding *binding = nullptr;
};
std::unique_ptr<Observer> observer;
QQmlEngine *m_engine = nullptr;
QObject *m_sourceObject = nullptr;
int m_sourcePropertyIndex = -1;
};
void QQmlPropertyGuard_callback(QQmlNotifierEndpoint *e, void **);
QT_END_NAMESPACE
#endif
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