Revision control
Copy as Markdown
// Copyright (C) 2016 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
#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 RenderSettings;
class NodeManagers;
namespace PickingUtils {
struct Q_AUTOTEST_EXPORT ViewportCameraAreaDetails
{
Qt3DCore::QNodeId cameraId;
Qt3DCore::QNodeId viewportNodeId;
QRectF viewport;
QSize area;
QSurface *surface = nullptr;
Qt3DCore::QNodeIdVector layersFilters;
};
QT3D_DECLARE_TYPEINFO_3(Qt3DRender, Render, PickingUtils, ViewportCameraAreaDetails, Q_COMPLEX_TYPE)
struct PickConfiguration {
std::vector<ViewportCameraAreaDetails> vcaDetails;
bool trianglePickingRequested = false;
bool edgePickingRequested = false;
bool pointPickingRequested = false;
bool primitivePickingRequested = false;
bool frontFaceRequested = false;
bool backFaceRequested = false;
float pickWorldSpaceTolerance = -1.f;
PickConfiguration(FrameGraphNode *frameGraphRoot, RenderSettings *renderSettings);
};
class Q_AUTOTEST_EXPORT ViewportCameraAreaGatherer
{
public:
ViewportCameraAreaGatherer(const Qt3DCore::QNodeId &nodeId = Qt3DCore::QNodeId()) : m_targetCamera(nodeId) { }
std::vector<ViewportCameraAreaDetails> gather(FrameGraphNode *root);
private:
Qt3DCore::QNodeId m_targetCamera;
std::vector<FrameGraphNode *> m_leaves;
void visit(FrameGraphNode *node);
ViewportCameraAreaDetails gatherUpViewportCameraAreas(Render::FrameGraphNode *node) const;
bool isUnique(const std::vector<ViewportCameraAreaDetails> &vcaList, const ViewportCameraAreaDetails &vca) const;
};
typedef std::vector<RayCasting::QCollisionQueryResult::Hit> HitList;
class Q_AUTOTEST_EXPORT HierarchicalEntityPicker
{
public:
explicit HierarchicalEntityPicker(const RayCasting::QRay3D &ray, bool requireObjectPicker = true);
void setLayerFilterIds(const Qt3DCore::QNodeIdVector &layerFilterIds);
void setLayerIds(const Qt3DCore::QNodeIdVector &layerIds, QAbstractRayCaster::FilterMode mode);
bool collectHits(NodeManagers *manager, Entity *root);
inline HitList hits() const { return m_hits; }
inline const std::vector<Entity *> &entities() const { return m_entities; }
inline QHash<Qt3DCore::QNodeId, int> entityToPriorityTable() const { return m_entityToPriorityTable; }
private:
RayCasting::QRay3D m_ray;
HitList m_hits;
std::vector<Entity *> m_entities;
bool m_objectPickersRequired;
Qt3DCore::QNodeIdVector m_layerFilterIds;
Qt3DCore::QNodeIdVector m_layerIds;
QAbstractRayCaster::FilterMode m_layerFilterMode = QAbstractRayCaster::AcceptAnyMatchingLayers;
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 std::vector<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 std::vector<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 std::vector<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 std::vector<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 std::vector<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