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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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.LGPLv3 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.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 later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qscene_p.h"
#include <QHash>
#include <QReadLocker>
#include <Qt3DCore/qnode.h>
#include <Qt3DCore/private/qlockableobserverinterface_p.h>
#include <Qt3DCore/private/qobservableinterface_p.h>
#include <Qt3DCore/private/qnode_p.h>
QT_BEGIN_NAMESPACE
namespace Qt3DCore {
class QScenePrivate
{
public:
QScenePrivate(QAspectEngine *engine)
: m_engine(engine)
, m_arbiter(Q_NULLPTR)
{
}
QAspectEngine *m_engine;
QHash<QNodeId, QNode *> m_nodeLookupTable;
QMultiHash<QNodeId, QNodeId> m_componentToEntities;
QMultiHash<QNodeId, QObservableInterface *> m_observablesLookupTable;
QHash<QObservableInterface *, QNodeId> m_observableToUuid;
QLockableObserverInterface *m_arbiter;
QHash<QNodeId, QNode *> m_clonesLookupTable;
mutable QReadWriteLock m_lock;
};
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 any thread
void QScene::addObservable(QObservableInterface *observable, const QNodeId &id)
{
Q_D(QScene);
QWriteLocker lock(&d->m_lock);
d->m_observablesLookupTable.insert(id, observable);
d->m_observableToUuid.insert(observable, id);
if (d->m_arbiter != Q_NULLPTR)
observable->setArbiter(d->m_arbiter);
}
// Called by main thread only
void QScene::addObservable(QNode *observable)
{
Q_D(QScene);
if (observable != Q_NULLPTR) {
QWriteLocker lock(&d->m_lock);
d->m_nodeLookupTable.insert(observable->id(), observable);
if (d->m_arbiter != Q_NULLPTR)
observable->d_func()->setArbiter(d->m_arbiter);
}
}
// Called by any thread
void QScene::removeObservable(QObservableInterface *observable, const QNodeId &id)
{
Q_D(QScene);
QWriteLocker lock(&d->m_lock);
d->m_observablesLookupTable.remove(id, observable);
d->m_observableToUuid.remove(observable);
observable->setArbiter(Q_NULLPTR);
}
// Called by main thread
void QScene::removeObservable(QNode *observable)
{
Q_D(QScene);
if (observable != Q_NULLPTR) {
QWriteLocker lock(&d->m_lock);
QNodeId nodeUuid = observable->id();
QObservableList observables = d->m_observablesLookupTable.values(nodeUuid);
Q_FOREACH (QObservableInterface *o, observables) {
o->setArbiter(Q_NULLPTR);
d->m_observableToUuid.remove(o);
}
d->m_observablesLookupTable.remove(nodeUuid);
d->m_nodeLookupTable.remove(nodeUuid);
observable->d_func()->setArbiter(Q_NULLPTR);
}
}
// Called by any thread
QObservableList QScene::lookupObservables(const QNodeId &id) const
{
Q_D(const QScene);
QReadLocker lock(&d->m_lock);
return d->m_observablesLookupTable.values(id);
}
// Called by any thread
QNode *QScene::lookupNode(const QNodeId &id) const
{
Q_D(const QScene);
QReadLocker lock(&d->m_lock);
return d->m_nodeLookupTable.value(id);
}
QVector<QNode *> QScene::lookupNodes(const QVector<QNodeId> &ids) const
{
Q_D(const QScene);
QReadLocker lock(&d->m_lock);
QVector<QNode *> nodes(ids.size());
int index = 0;
Q_FOREACH (const QNodeId &id, ids)
nodes[index++] = d->m_nodeLookupTable.value(id);
return nodes;
}
QNodeId QScene::nodeIdFromObservable(QObservableInterface *observable) const
{
Q_D(const QScene);
QReadLocker lock(&d->m_lock);
return d->m_observableToUuid.value(observable);
}
void QScene::setArbiter(QLockableObserverInterface *arbiter)
{
Q_D(QScene);
d->m_arbiter = arbiter;
}
QLockableObserverInterface *QScene::arbiter() const
{
Q_D(const QScene);
return d->m_arbiter;
}
QList<QNodeId> QScene::entitiesForComponent(const QNodeId &id) const
{
Q_D(const QScene);
QReadLocker lock(&d->m_lock);
return d->m_componentToEntities.values(id);
}
void QScene::addEntityForComponent(const QNodeId &componentUuid, const QNodeId &entityUuid)
{
Q_D(QScene);
QWriteLocker lock(&d->m_lock);
d->m_componentToEntities.insert(componentUuid, entityUuid);
}
void QScene::removeEntityForComponent(const QNodeId &componentUuid, const QNodeId &entityUuid)
{
Q_D(QScene);
QWriteLocker lock(&d->m_lock);
d->m_componentToEntities.remove(componentUuid, entityUuid);
}
bool QScene::hasEntityForComponent(const QNodeId &componentUuid, const QNodeId &entityUuid)
{
Q_D(QScene);
QReadLocker lock(&d->m_lock);
return d->m_componentToEntities.values(componentUuid).contains(entityUuid);
}
} // Qt3D
QT_END_NAMESPACE
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