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/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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_PRIVATE_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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