| 1 | // Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff <milian.wolff@kdab.com> |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #include "propertychangehandler_p.h" |
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| 5 | |
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| 6 | QT_BEGIN_NAMESPACE |
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| 7 | |
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| 8 | namespace Qt3DCore { |
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| 9 | |
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| 10 | /* |
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| 11 | \internal |
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| 12 | \class Qt3DCore::PropertyChangeHandlerBase |
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| 13 | \inmodule Qt3DCore |
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| 14 | \brief Base class for the property change handler. |
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| 15 | */ |
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| 16 | PropertyChangeHandlerBase::PropertyChangeHandlerBase(QObject *parent) : |
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| 17 | QObject(parent) |
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| 18 | { |
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| 19 | } |
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| 20 | |
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| 21 | void PropertyChangeHandlerBase::connectToPropertyChange(const QObject *object, int propertyIndex) |
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| 22 | { |
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| 23 | const QMetaObject *metaObject = object->metaObject(); |
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| 24 | const QMetaProperty property = metaObject->property(index: propertyIndex); |
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| 25 | if (!property.hasNotifySignal()) |
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| 26 | return; |
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| 27 | |
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| 28 | static const int memberOffset = staticMetaObject.methodCount(); |
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| 29 | QMetaObject::Connection connection = QMetaObject::connect(sender: object, signal_index: property.notifySignalIndex(), |
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| 30 | receiver: this, method_index: memberOffset + propertyIndex, |
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| 31 | type: Qt::DirectConnection, types: 0); |
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| 32 | Q_ASSERT(connection); |
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| 33 | Q_UNUSED(connection); |
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| 34 | } |
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| 35 | |
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| 36 | void PropertyChangeHandlerBase::disconnectFromPropertyChange(const QObject *object, int propertyIndex) |
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| 37 | { |
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| 38 | const QMetaObject *metaObject = object->metaObject(); |
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| 39 | const QMetaProperty property = metaObject->property(index: propertyIndex); |
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| 40 | if (!property.hasNotifySignal()) |
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| 41 | return; |
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| 42 | |
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| 43 | static const int memberOffset = staticMetaObject.methodCount(); |
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| 44 | QMetaObject::disconnect(sender: object, signal_index: property.notifySignalIndex(), receiver: this, method_index: memberOffset + propertyIndex); |
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| 45 | } |
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| 46 | |
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| 47 | |
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| 48 | } |
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| 49 | |
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| 50 | QT_END_NAMESPACE |
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| 51 | |
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| 52 | #include "moc_propertychangehandler_p.cpp" |
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| 53 | |
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