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/****************************************************************************
**
** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QT3DRENDER_RENDER_PICKBOUNDINGVOLUMEUTILS_H
#define QT3DRENDER_RENDER_PICKBOUNDINGVOLUMEUTILS_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <Qt3DCore/QNodeId>
#include <Qt3DRender/QAbstractRayCaster>
#include <Qt3DRender/private/qray3d_p.h>
#include <Qt3DRender/private/qraycastingservice_p.h>
#include <Qt3DRender/qpickingsettings.h>
QT_BEGIN_NAMESPACE
class QSurface;
namespace Qt3DRender {
namespace RayCasting {
class QAbstractCollisionQueryService;
}
namespace Render {
class Entity;
class Renderer;
class FrameGraphNode;
class NodeManagers;
namespace PickingUtils {
struct Q_AUTOTEST_EXPORT ViewportCameraAreaDetails
{
Qt3DCore::QNodeId cameraId;
QRectF viewport;
QSize area;
QSurface *surface = nullptr;
};
QT3D_DECLARE_TYPEINFO_3(Qt3DRender, Render, PickingUtils, ViewportCameraAreaDetails, Q_PRIMITIVE_TYPE)
class Q_AUTOTEST_EXPORT ViewportCameraAreaGatherer
{
public:
ViewportCameraAreaGatherer(const Qt3DCore::QNodeId &nodeId = Qt3DCore::QNodeId()) : m_targetCamera(nodeId) { }
QVector<ViewportCameraAreaDetails> gather(FrameGraphNode *root);
private:
Qt3DCore::QNodeId m_targetCamera;
QVector<FrameGraphNode *> m_leaves;
void visit(FrameGraphNode *node);
ViewportCameraAreaDetails gatherUpViewportCameraAreas(Render::FrameGraphNode *node) const;
bool isUnique(const QVector<ViewportCameraAreaDetails> &vcaList, const ViewportCameraAreaDetails &vca) const;
};
typedef QVector<RayCasting::QCollisionQueryResult::Hit> HitList;
class Q_AUTOTEST_EXPORT HierarchicalEntityPicker
{
public:
explicit HierarchicalEntityPicker(const RayCasting::QRay3D &ray, bool requireObjectPicker = true);
void setFilterLayers(const Qt3DCore::QNodeIdVector &layerIds, QAbstractRayCaster::FilterMode mode);
bool collectHits(NodeManagers *manager, Entity *root);
inline HitList hits() const { return m_hits; }
inline QVector<Entity *> entities() const { return m_entities; }
inline QHash<Qt3DCore::QNodeId, int> entityToPriorityTable() const { return m_entityToPriorityTable; }
private:
RayCasting::QRay3D m_ray;
HitList m_hits;
QVector<Entity *> m_entities;
bool m_objectPickersRequired;
Qt3DCore::QNodeIdVector m_layerIds;
QAbstractRayCaster::FilterMode m_filterMode;
QHash<Qt3DCore::QNodeId, int> m_entityToPriorityTable;
};
struct Q_AUTOTEST_EXPORT AbstractCollisionGathererFunctor
{
AbstractCollisionGathererFunctor();
virtual ~AbstractCollisionGathererFunctor();
bool m_objectPickersRequired = true;
NodeManagers *m_manager = nullptr;
RayCasting::QRay3D m_ray;
QHash<Qt3DCore::QNodeId, int> m_entityToPriorityTable;
virtual HitList computeHits(const QVector<Entity *> &entities, Qt3DRender::QPickingSettings::PickResultMode mode) = 0;
// This define is required to work with QtConcurrent
typedef HitList result_type;
HitList operator ()(const Entity *entity) const;
virtual HitList pick(const Entity *entity) const = 0;
bool rayHitsEntity(const Entity *entity) const;
static void sortHits(HitList &results);
};
struct Q_AUTOTEST_EXPORT EntityCollisionGathererFunctor : public AbstractCollisionGathererFunctor
{
HitList computeHits(const QVector<Entity *> &entities, Qt3DRender::QPickingSettings::PickResultMode mode) override;
HitList pick(const Entity *entity) const override;
};
struct Q_AUTOTEST_EXPORT TriangleCollisionGathererFunctor : public AbstractCollisionGathererFunctor
{
bool m_frontFaceRequested;
bool m_backFaceRequested;
HitList computeHits(const QVector<Entity *> &entities, Qt3DRender::QPickingSettings::PickResultMode mode) override;
HitList pick(const Entity *entity) const override;
};
struct Q_AUTOTEST_EXPORT LineCollisionGathererFunctor : public AbstractCollisionGathererFunctor
{
float m_pickWorldSpaceTolerance;
HitList computeHits(const QVector<Entity *> &entities, Qt3DRender::QPickingSettings::PickResultMode mode) override;
HitList pick(const Entity *entity) const override;
};
struct Q_AUTOTEST_EXPORT PointCollisionGathererFunctor : public AbstractCollisionGathererFunctor
{
float m_pickWorldSpaceTolerance;
HitList computeHits(const QVector<Entity *> &entities, Qt3DRender::QPickingSettings::PickResultMode mode) override;
HitList pick(const Entity *entity) const override;
};
} // PickingUtils
} // Render
} // Qt3DRender
QT_END_NAMESPACE
#endif // QT3DRENDER_RENDER_PICKBOUNDINGVOLUMEUTILS_H
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