1// Copyright (C) 2019 Klaralvdalens Datakonsult AB (KDAB).
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QT3DRENDER_RENDER_ENTITYVISITOR_H
5#define QT3DRENDER_RENDER_ENTITYVISITOR_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists for the convenience
12// of other Qt classes. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include <private/qglobal_p.h>
19
20QT_BEGIN_NAMESPACE
21
22namespace Qt3DRender {
23namespace Render {
24
25class Entity;
26class NodeManagers;
27
28class Q_AUTOTEST_EXPORT EntityVisitor
29{
30public:
31 enum Operation {
32 Continue, //! continue traversal
33 Prune, //! don't traverse children
34 Stop //! abort traversal
35 };
36
37 EntityVisitor(NodeManagers *manager);
38 virtual ~EntityVisitor();
39
40 virtual Operation visit(Entity *entity = nullptr);
41
42 bool pruneDisabled() const;
43 void setPruneDisabled(bool pruneDisabled);
44
45 bool apply(Entity *root);
46
47protected:
48 NodeManagers *m_manager;
49
50private:
51 bool m_pruneDisabled;
52};
53
54} // namespace Render
55} // namespace Qt3DRender
56
57QT_END_NAMESPACE
58
59#endif // QT3DRENDER_RENDER_ENTITYVISITOR_H
60

source code of qt3d/src/render/backend/entityvisitor_p.h