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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 "transform_p.h"
#include <Qt3DCore/private/qchangearbiter_p.h>
#include <Qt3DCore/qtransform.h>
#include <Qt3DCore/private/qtransform_p.h>
#include <Qt3DRender/qcamera.h>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
using namespace Qt3DCore;
Transform::Transform()
: BackendNode(ReadWrite)
, m_rotation()
, m_scale(1.0f, 1.0f, 1.0f)
, m_translation()
{
}
void Transform::cleanup()
{
m_rotation = QQuaternion();
m_scale = QVector3D();
m_translation = QVector3D();
m_transformMatrix = Matrix4x4();
QBackendNode::setEnabled(false);
}
Matrix4x4 Transform::transformMatrix() const
{
return m_transformMatrix;
}
QVector3D Transform::scale() const
{
return m_scale;
}
QQuaternion Transform::rotation() const
{
return m_rotation;
}
QVector3D Transform::translation() const
{
return m_translation;
}
void Transform::syncFromFrontEnd(const QNode *frontEnd, bool firstTime)
{
const Qt3DCore::QTransform *transform = qobject_cast<const Qt3DCore::QTransform *>(frontEnd);
if (!transform)
return;
bool dirty = m_rotation != transform->rotation();
m_rotation = transform->rotation();
dirty |= m_scale != transform->scale3D();
m_scale = transform->scale3D();
dirty |= m_translation != transform->translation();
m_translation = transform->translation();
if (dirty || firstTime) {
auto camera = qobject_cast<const Qt3DRender::QCamera *>(transform->parentNode());
if (camera) {
m_viewMatrix = Matrix4x4(camera->viewMatrix());
m_hasViewMatrix = true;
} else {
m_hasViewMatrix = false;
}
updateMatrix();
markDirty(AbstractRenderer::TransformDirty);
}
if (transform->isEnabled() != isEnabled())
markDirty(AbstractRenderer::TransformDirty);
BackendNode::syncFromFrontEnd(frontEnd, firstTime);
}
void Transform::updateMatrix()
{
QMatrix4x4 m;
m.translate(m_translation);
m.rotate(m_rotation);
m.scale(m_scale);
m_transformMatrix = Matrix4x4(m);
}
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
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