Revision control
++ // 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