qt-everywhere-src-5.15.1/qt3d/src/quick3d/quick3drender/items/quick3dgeometry.cpp

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#include <Qt3DQuickRender/private/quick3dgeometry_p.h>

QT_BEGIN_NAMESPACE

namespace Qt3DRender {
namespace Render {
namespace Quick {

Quick3DGeometry::Quick3DGeometry(QObject *parent)
    : QObject(parent)
{
}

QQmlListProperty<Qt3DRender::QAttribute> Quick3DGeometry::attributeList()
{
    return QQmlListProperty<Qt3DRender::QAttribute>(this, 0,
                                                            &Quick3DGeometry::appendAttribute,
                                                            &Quick3DGeometry::attributesCount,
                                                            &Quick3DGeometry::attributeAt,
                                                            &Quick3DGeometry::clearAttributes);
}

void Quick3DGeometry::appendAttribute(QQmlListProperty<Qt3DRender::QAttribute> *list, Qt3DRender::QAttribute *attribute)
{
    Quick3DGeometry *geometry = static_cast<Quick3DGeometry *>(list->object);
    geometry->m_managedAttributes.append(attribute);
    geometry->parentGeometry()->addAttribute(attribute);
}

Qt3DRender::QAttribute *Quick3DGeometry::attributeAt(QQmlListProperty<Qt3DRender::QAttribute> *list, int index)
{
    Quick3DGeometry *geometry = static_cast<Quick3DGeometry *>(list->object);
    return geometry->parentGeometry()->attributes().at(index);
}

int Quick3DGeometry::attributesCount(QQmlListProperty<Qt3DRender::QAttribute> *list)
{
    Quick3DGeometry *geometry = static_cast<Quick3DGeometry *>(list->object);
    return geometry->parentGeometry()->attributes().count();
}

void Quick3DGeometry::clearAttributes(QQmlListProperty<Qt3DRender::QAttribute> *list)
{
    Quick3DGeometry *geometry = static_cast<Quick3DGeometry *>(list->object);
    for (Qt3DRender::QAttribute *attribute : qAsConst(geometry->m_managedAttributes))
        geometry->parentGeometry()->removeAttribute(attribute);
    geometry->m_managedAttributes.clear();
}

} // namespace Quick
} // namespace Render
} // namespace Qt3DRender

QT_END_NAMESPACE