propertychangehandler.cpp

Enable keyboard shortcuts

// 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"