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++ // Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff <milian.wolff@kdab.com>
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++
++ #include "propertychangehandler_p.h"
++
++ QT_BEGIN_NAMESPACE
++
++ namespace Qt3DCore {
++
++ /*
++ \internal
++ \class Qt3DCore::PropertyChangeHandlerBase
++ \inmodule Qt3DCore
++ \brief Base class for the property change handler.
++ */
++ PropertyChangeHandlerBase::PropertyChangeHandlerBase(QObject *parent) :
++ QObject(parent)
++ {
++ }
++
++ void PropertyChangeHandlerBase::connectToPropertyChange(const QObject *object, int propertyIndex)
++ {
++ const QMetaObject *metaObject = object->metaObject();
++ const QMetaProperty property = metaObject->property(propertyIndex);
++ if (!property.hasNotifySignal())
++ return;
++
++ static const int memberOffset = staticMetaObject.methodCount();
++ QMetaObject::Connection connection = QMetaObject::connect(object, property.notifySignalIndex(),
++ this, memberOffset + propertyIndex,
++ Qt::DirectConnection, 0);
++ Q_ASSERT(connection);
++ Q_UNUSED(connection);
++ }
++
++ void PropertyChangeHandlerBase::disconnectFromPropertyChange(const QObject *object, int propertyIndex)
++ {
++ const QMetaObject *metaObject = object->metaObject();
++ const QMetaProperty property = metaObject->property(propertyIndex);
++ if (!property.hasNotifySignal())
++ return;
++
++ static const int memberOffset = staticMetaObject.methodCount();
++ QMetaObject::disconnect(object, property.notifySignalIndex(), this, memberOffset + propertyIndex);
++ }
++
++
++ }
++
++ QT_END_NAMESPACE
++
++ #include "moc_propertychangehandler_p.cpp"