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 | |
20 | QT_BEGIN_NAMESPACE |
21 | |
22 | namespace Qt3DRender { |
23 | namespace Render { |
24 | |
25 | class Entity; |
26 | class NodeManagers; |
27 | |
28 | class Q_AUTOTEST_EXPORT EntityVisitor |
29 | { |
30 | public: |
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 | |
47 | protected: |
48 | NodeManagers *m_manager; |
49 | |
50 | private: |
51 | bool m_pruneDisabled; |
52 | }; |
53 | |
54 | } // namespace Render |
55 | } // namespace Qt3DRender |
56 | |
57 | QT_END_NAMESPACE |
58 | |
59 | #endif // QT3DRENDER_RENDER_ENTITYVISITOR_H |
60 | |