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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 "qscene_p.h"
#include <Qt3DCore/qnode.h>
#include <QtCore/QHash>
#include <QtCore/QReadLocker>
#include <Qt3DCore/private/qnode_p.h>
#include <Qt3DCore/qaspectengine.h>
QT_BEGIN_NAMESPACE
namespace Qt3DCore {
class QScenePrivate
{
public:
QScenePrivate(QAspectEngine *engine)
: m_engine(engine)
, m_arbiter(nullptr)
//m_postConstructorInit needs the parent set correctly for QObject::moveToThread() to work correctly
, m_postConstructorInit(new NodePostConstructorInit(engine))
, m_rootNode(nullptr)
{
}
QAspectEngine *m_engine;
QHash<QNodeId, QNode *> m_nodeLookupTable;
QMultiHash<QNodeId, QNodeId> m_componentToEntities;
QChangeArbiter *m_arbiter;
QScopedPointer<NodePostConstructorInit, QScopedPointerDeleteLater> m_postConstructorInit;
mutable QReadWriteLock m_lock;
mutable QReadWriteLock m_nodePropertyTrackModeLock;
QNode *m_rootNode;
QScene::DirtyNodeSet m_dirtyBits;
};
QScene::QScene(QAspectEngine *engine)
: d_ptr(new QScenePrivate(engine))
{
}
QScene::~QScene()
{
}
QAspectEngine *QScene::engine() const
{
Q_D(const QScene);
return d->m_engine;
}
// Called by main thread only
void QScene::addObservable(QNode *observable)
{
Q_D(QScene);
if (observable != nullptr) {
QWriteLocker lock(&d->m_lock);
d->m_nodeLookupTable.insert(observable->id(), observable);
if (d->m_arbiter != nullptr)
observable->d_func()->setArbiter(d->m_arbiter);
}
}
// Called by main thread
void QScene::removeObservable(QNode *observable)
{
Q_D(QScene);
if (observable != nullptr) {
QWriteLocker lock(&d->m_lock);
const QNodeId nodeUuid = observable->id();
d->m_nodeLookupTable.remove(nodeUuid);
observable->d_func()->setArbiter(nullptr);
}
}
// Called by any thread
QNode *QScene::lookupNode(QNodeId id) const
{
Q_D(const QScene);
QReadLocker lock(&d->m_lock);
return d->m_nodeLookupTable.value(id);
}
QList<QNode *> QScene::lookupNodes(const QList<QNodeId> &ids) const
{
Q_D(const QScene);
QReadLocker lock(&d->m_lock);
QList<QNode *> nodes;
nodes.reserve(ids.size());
for (QNodeId id : ids)
nodes.push_back(d->m_nodeLookupTable.value(id));
return nodes;
}
QNode *QScene::rootNode() const
{
Q_D(const QScene);
return d->m_rootNode;
}
void QScene::setArbiter(QChangeArbiter *arbiter)
{
Q_D(QScene);
d->m_arbiter = arbiter;
}
QChangeArbiter *QScene::arbiter() const
{
Q_D(const QScene);
return d->m_arbiter;
}
QList<QNodeId> QScene::entitiesForComponent(QNodeId id) const
{
Q_D(const QScene);
QReadLocker lock(&d->m_lock);
QList<QNodeId> result;
const auto p = d->m_componentToEntities.equal_range(id);
for (auto it = p.first; it != p.second; ++it)
result.push_back(*it);
return result;
}
void QScene::addEntityForComponent(QNodeId componentUuid, QNodeId entityUuid)
{
Q_D(QScene);
QWriteLocker lock(&d->m_lock);
d->m_componentToEntities.insert(componentUuid, entityUuid);
}
void QScene::removeEntityForComponent(QNodeId componentUuid, QNodeId entityUuid)
{
Q_D(QScene);
QWriteLocker lock(&d->m_lock);
d->m_componentToEntities.remove(componentUuid, entityUuid);
}
bool QScene::hasEntityForComponent(QNodeId componentUuid, QNodeId entityUuid)
{
Q_D(QScene);
QReadLocker lock(&d->m_lock);
const auto range = d->m_componentToEntities.equal_range(componentUuid);
return std::find(range.first, range.second, entityUuid) != range.second;
}
NodePostConstructorInit *QScene::postConstructorInit() const
{
Q_D(const QScene);
return d->m_postConstructorInit.get();
}
QScene::DirtyNodeSet QScene::dirtyBits()
{
Q_D(QScene);
return d->m_dirtyBits;
}
void QScene::clearDirtyBits()
{
Q_D(QScene);
d->m_dirtyBits = {};
}
void QScene::markDirty(QScene::DirtyNodeSet changes)
{
Q_D(QScene);
d->m_dirtyBits |= changes;
}
void QScene::setRootNode(QNode *root)
{
Q_D(QScene);
d->m_rootNode = root;
}
} // Qt3D
QT_END_NAMESPACE
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