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++ // Copyright (C) 2023 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #ifndef TESTEXTENSION_H
++ #define TESTEXTENSION_H
++
++ #include <QQuick3DRenderExtension>
++ #include <QtQmlIntegration>
++
++ class MyExtension : public QQuick3DRenderExtension
++ {
++ Q_OBJECT
++ QML_ELEMENT
++
++ Q_PROPERTY(float x READ x WRITE setX NOTIFY xChanged)
++ Q_PROPERTY(float y READ y WRITE setY NOTIFY yChanged)
++ Q_PROPERTY(float z READ z WRITE setZ NOTIFY zChanged)
++
++ public:
++ MyExtension(QQuick3DObject *parent = nullptr);
++
++ float x() const { return m_x; }
++ void setX(float value)
++ {
++ if (m_x != value) {
++ m_x = value;
++ emit xChanged();
++ markDirty(PositionDirty);
++ }
++ }
++
++ float y() const { return m_y; }
++ void setY(float value)
++ {
++ if (m_y != value) {
++ m_y = value;
++ emit yChanged();
++ markDirty(PositionDirty);
++ }
++ }
++
++ float z() const { return m_z; }
++ void setZ(float value)
++ {
++ if (m_z != value) {
++ m_z = value;
++ emit zChanged();
++ markDirty(PositionDirty);
++ }
++ }
++
++ signals:
++ void xChanged();
++ void yChanged();
++ void zChanged();
++
++ protected:
++ QSSGRenderGraphObject *updateSpatialNode(QSSGRenderGraphObject *node) override;
++
++ private:
++ enum Dirty : quint8
++ {
++ PositionDirty = 1 << 0
++ };
++ using DirtyT = std::underlying_type_t<Dirty>;
++ void markDirty(Dirty v);
++ DirtyT m_dirtyFlag = 0;
++
++ float m_x = 0.0f;
++ float m_y = 0.0f;
++ float m_z = 0.0f;
++ };
++
++ #endif // TESTEXTENSION_H