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/****************************************************************************
**
** Copyright (C) 2017 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 "skeleton_p.h"
#include <Qt3DCore/qpropertyupdatedchange.h>
QT_BEGIN_NAMESPACE
using namespace Qt3DCore;
namespace Qt3DAnimation {
namespace Animation {
// Rather than store backend nodes for the individual joints, the
// animation aspect operates on the vector of local poses as aggregated
// by the skeleton. This allows us to animate a skeleton even when the
// frontend QSkeletonLoader does not instantiate the frontend QJoint nodes.
// It also means we don't need a QChannelMapping for each property of each
// joint.
Skeleton::Skeleton()
: BackendNode(Qt3DCore::QBackendNode::ReadWrite)
{
}
void Skeleton::cleanup()
{
m_jointNames.clear();
m_jointLocalPoses.clear();
}
// TODOSYNC remove once backend > backend communication no longer requires messages
void Skeleton::sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e)
{
// Get the joint names and initial local poses from a change sent
// by the render aspect when the skeleton has been loaded.
switch (e->type()) {
case PropertyUpdated: {
const auto change = qSharedPointerCast<QPropertyUpdatedChange>(e);
if (change->propertyName() == QByteArrayLiteral("jointNamesAndLocalPoses")) {
const auto payload = change->value().value<JointNamesAndLocalPoses>();
m_jointNames = payload.names;
m_jointLocalPoses = payload.localPoses;
// TODO: Mark joint info as dirty so we can rebuild any indexes used
// by the animators and channel mappings.
}
break;
}
default:
break;
}
BackendNode::sceneChangeEvent(e);
}
void Skeleton::sendLocalPoses()
{
auto e = QPropertyUpdatedChangePtr::create(peerId());
e->setDeliveryFlags(Qt3DCore::QSceneChange::BackendNodes);
e->setPropertyName("localPoses");
e->setValue(QVariant::fromValue(m_jointLocalPoses));
notifyObservers(e);
}
} // namespace Animation
} // namespace Qt3DAnimation
QT_END_NAMESPACE
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