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// Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "quick3dentity_p.h"
#include <Qt3DCore/qcomponent.h>
QT_BEGIN_NAMESPACE
namespace Qt3DCore {
namespace Quick {
/*!
\qmltype Entity
\instantiates Qt3DCore::QEntity
\inherits Node
\inqmlmodule Qt3D.Core
\since 5.5
\brief Entity is a \l Node subclass that can aggregate several
\l Component3D instances that will specify its behavior.
By itself a Entity is an empty shell. The behavior of a Entity
object is defined by the \l Component3D objects it references. Each Qt3D
backend aspect will be able to interpret and process an Entity by
recognizing which components it is made up of. One aspect may decide to only
process entities composed of a single \l Transform component whilst
another may focus on \l MouseHandler.
\sa Qt3D.Core::Component3D, Qt3D.Core::Transform
*/
/*!
\qmlproperty list<Component3D> Entity::components
Holds the list of \l Component3D instances, which define the behavior
of the entity.
\readonly
*/
Quick3DEntity::Quick3DEntity(QObject *parent)
: QObject(parent)
{
}
QQmlListProperty<QComponent> Quick3DEntity::componentList()
{
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
using qt_size_type = qsizetype;
#else
using qt_size_type = int;
#endif
using ListContentType = Qt3DCore::QComponent;
auto appendFunction = [](QQmlListProperty<ListContentType> *list, ListContentType *comp) {
if (comp == nullptr)
return;
Quick3DEntity *self = static_cast<Quick3DEntity *>(list->object);
self->m_managedComponents.push_back(comp);
self->parentEntity()->addComponent(comp);
};
auto countFunction = [](QQmlListProperty<ListContentType> *list) -> qt_size_type {
Quick3DEntity *self = static_cast<Quick3DEntity *>(list->object);
return self->parentEntity()->components().size();
};
auto atFunction = [](QQmlListProperty<ListContentType> *list, qt_size_type index) -> ListContentType * {
Quick3DEntity *self = static_cast<Quick3DEntity *>(list->object);
return self->parentEntity()->components().at(index);
};
auto clearFunction = [](QQmlListProperty<ListContentType> *list) {
Quick3DEntity *self = static_cast<Quick3DEntity *>(list->object);
for (QComponent *comp : std::as_const(self->m_managedComponents))
self->parentEntity()->removeComponent(comp);
self->m_managedComponents.clear();
};
return QQmlListProperty<ListContentType>(this, nullptr, appendFunction, countFunction, atFunction, clearFunction);
}
} // namespace Quick
} // namespace Qt3DCore
QT_END_NAMESPACE
#include "moc_quick3dentity_p.cpp"
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