void QNodePrivate::propertyChanged(int propertyIndex)
{
// Bail out early if we can to avoid the cost below
if (m_blockNotifications)
return;
Q_Q(QNode);
const QMetaProperty property = q->metaObject()->property(propertyIndex);
const QVariant data = property.read(q);
if (data.canConvert<QNode*>()) {
QNode *node = data.value<QNode*>();
// Ensure the node has issued a node creation change. We can end
// up here if a newly created node with a parent is immediately set
// as a property on another node. In this case the deferred call to
// _q_postConstructorInit() will not have happened yet as the event
// loop will still be blocked. So force it here and we catch this
// eventuality in the _q_postConstructorInit() function so that we
// do not repeat the creation and new child scene change events.
if (node)
QNodePrivate::get(node)->_q_postConstructorInit();
const QNodeId id = node ? node->id() : QNodeId();
notifyPropertyChange(property.name(), QVariant::fromValue(id));
} else {
notifyPropertyChange(property.name(), data);
}
}
void RenderMaterial::sceneChangeEvent(const QSceneChangePtr &e)
{
QScenePropertyChangePtr propertyChange = qSharedPointerCast<QScenePropertyChange>(e);
switch (e->type()) {
case NodeUpdated: {
if (propertyChange->propertyName() == QByteArrayLiteral("enabled"))
m_enabled = propertyChange->value().toBool();
break;
}
// Check for shader parameter
case NodeAdded: {
if (propertyChange->propertyName() == QByteArrayLiteral("parameter"))
m_parameterPack.appendParameter(propertyChange->value().value<QNodeId>());
else if (propertyChange->propertyName() == QByteArrayLiteral("effect"))
m_effectUuid = propertyChange->value().value<QNodeId>();
break;
}
case NodeRemoved: {
if (propertyChange->propertyName() == QByteArrayLiteral("parameter"))
m_parameterPack.removeParameter(propertyChange->value().value<QNodeId>());
else if (propertyChange->propertyName() == QByteArrayLiteral("effect"))
m_effectUuid = QNodeId();
break;
}
default:
break;
}
}
/*!
* \internal
*
* Called by _q_setParentHelper on the main thread.
*/
void QNodePrivate::_q_removeChild(QNode *childNode)
{
Q_ASSERT(childNode);
Q_ASSERT_X(childNode->parent() == q_func(), Q_FUNC_INFO, "not a child of this node");
QNodePrivate::get(childNode)->m_parentId = QNodeId();
// We notify the backend that we lost a child
if (m_changeArbiter != nullptr) {
const auto change = QPropertyNodeRemovedChangePtr::create(m_id, childNode);
change->setPropertyName("children");
notifyObservers(change);
}
}