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// Copyright (C) 2018 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 "qscreenraycaster.h"
#include "qabstractraycaster_p.h"
#include <Qt3DCore/qentity.h>
#include <Qt3DCore/private/qcomponent_p.h>
#include <Qt3DCore/private/qscene_p.h>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
/*!
\class Qt3DRender::QScreenRayCaster
\brief Performe ray casting test based on screen coordinates.
\inmodule Qt3DRender
\since 5.11
\inherits QAbstractRayCaster
QScreenRayCaster can be used to perform ray casting tests by specifying coordinates in
screen space, which will be used to construct an actual 3D ray between the near and
far planes.
\sa QRayCaster, QNoPicking
*/
/*!
\qmltype ScreenRayCaster
\brief Performe ray casting test based on screen coordinates.
\inqmlmodule Qt3D.Render
\since 5.11
\instantiates Qt3DRender::QScreenRayCaster
ScreenRayCaster can be used to perform ray casting tests by specifying coordinates in
screen space, which will be used to construct an actual 3D ray between the near and
far planes.
\sa RayCaster, NoPicking
*/
/*!
\property Qt3DRender::QScreenRayCaster::position
Holds the screen space position used to compute the actual 3D ray for intersection tests.
Note: the coordinates will be used for every available render surface as long as they are
in the valid range.
*/
/*!
\qmlproperty point Qt3D.Render::ScreenRayCaster::position
Holds the length of the 3D ray.
\note The coordinates will be used for every available render surface as long as they are
in the valid range.
*/
QScreenRayCaster::QScreenRayCaster(Qt3DCore::QNode *parent)
: QAbstractRayCaster(parent)
{
QAbstractRayCasterPrivate::get(this)->m_rayCasterType = QAbstractRayCasterPrivate::ScreenScapeRayCaster;
}
/*! \internal */
QScreenRayCaster::QScreenRayCaster(QAbstractRayCasterPrivate &dd, Qt3DCore::QNode *parent)
: QAbstractRayCaster(dd, parent)
{
QAbstractRayCasterPrivate::get(this)->m_rayCasterType = QAbstractRayCasterPrivate::ScreenScapeRayCaster;
}
/*! \internal */
QScreenRayCaster::~QScreenRayCaster()
{
}
QPoint QScreenRayCaster::position() const
{
auto d = QAbstractRayCasterPrivate::get(this);
return d->m_position;
}
void QScreenRayCaster::setPosition(const QPoint &position)
{
auto d = QAbstractRayCasterPrivate::get(this);
if (d->m_position != position) {
d->m_position = position;
emit positionChanged(d->m_position);
}
}
/*!
Convenience method to enable the component and trigger tests using the current coordinate value.
*/
void QScreenRayCaster::trigger()
{
setEnabled(true);
}
/*!
Convenience method to set the coordinate value \a position and enable the component to trigger tests.
*/
void QScreenRayCaster::trigger(const QPoint &position)
{
setPosition(position);
setEnabled(true);
}
QAbstractRayCaster::Hits QScreenRayCaster::pick(const QPoint &position)
{
setPosition(position);
auto d = QAbstractRayCasterPrivate::get(this);
return d->pick();
}
} // Qt3DRender
QT_END_NAMESPACE
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