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| ** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB). |
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| |
| #include "transform_p.h" |
| |
| #include <Qt3DCore/private/qchangearbiter_p.h> |
| #include <Qt3DCore/qtransform.h> |
| #include <Qt3DCore/private/qtransform_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| using namespace Qt3DCore; |
| |
| namespace Qt3DRender { |
| namespace Render { |
| |
| 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) { |
| 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 |