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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 "qcameraselector.h"
++ #include "qcameraselector_p.h"
++ #include <Qt3DCore/qentity.h>
++ #include <Qt3DCore/private/qentity_p.h>
++
++ QT_BEGIN_NAMESPACE
++
++ namespace Qt3DRender {
++
++ /*!
++ \class Qt3DRender::QCameraSelector
++ \inmodule Qt3DRender
++ \since 5.5
++ \ingroup framegraph
++
++ \brief Class to allow for selection of camera to be used.
++
++ A Qt3DRender::QCameraSelector can be used to select the camera, which is used
++ by the FrameGraph when drawing the entities.
++ */
++
++ /*!
++ \qmltype CameraSelector
++ \inqmlmodule Qt3D.Render
++ \nativetype Qt3DRender::QCameraSelector
++ \inherits FrameGraphNode
++ \since 5.5
++ \brief Class to allow for selection of camera to be used.
++
++ A CameraSelector can be used to select the camera, which is used
++ by the FrameGraph when drawing the entities.
++ */
++
++ /*!
++ \qmlproperty Entity Qt3D.Render::CameraSelector::camera
++
++ Holds the currently selected camera.
++ */
++
++ /*!
++ \property Qt3DRender::QCameraSelector::camera
++
++ Holds the currently selected camera.
++ */
++
++
++ /*! \internal */
++ QCameraSelector::QCameraSelector(QCameraSelectorPrivate &dd, QNode *parent)
++ : QFrameGraphNode(dd, parent)
++ {
++ }
++
++ QCameraSelectorPrivate::QCameraSelectorPrivate()
++ : QFrameGraphNodePrivate()
++ , m_camera(nullptr)
++ {
++ }
++
++ /*!
++ The constructor creates an instance with the specified \a parent.
++ */
++ QCameraSelector::QCameraSelector(Qt3DCore::QNode *parent)
++ : QFrameGraphNode(*new QCameraSelectorPrivate, parent)
++ {
++ }
++
++ /*! \internal */
++ QCameraSelector::~QCameraSelector()
++ {
++ }
++
++ void QCameraSelector::setCamera(Qt3DCore::QEntity *camera)
++ {
++ Q_D(QCameraSelector);
++ if (d->m_camera != camera) {
++
++ if (d->m_camera)
++ d->unregisterDestructionHelper(d->m_camera);
++
++ // We need to add it as a child of the current node if it has been declared inline
++ // Or not previously added as a child of the current node so that
++ // 1) The backend gets notified about it's creation
++ // 2) When the current node is destroyed, it gets destroyed as well
++ if (camera && !camera->parent())
++ camera->setParent(this);
++ d->m_camera = camera;
++
++ // Ensures proper bookkeeping
++ if (d->m_camera)
++ d->registerDestructionHelper(d->m_camera, &QCameraSelector::setCamera, d->m_camera);
++
++ emit cameraChanged(camera);
++ }
++ }
++
++ Qt3DCore::QEntity *QCameraSelector::camera() const
++ {
++ Q_D(const QCameraSelector);
++ return d->m_camera;
++ }
++
++ } // namespace Qt3DRender
++
++ QT_END_NAMESPACE
++
++ #include "moc_qcameraselector.cpp"