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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"