1/****************************************************************************
2**
3** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
4** Contact: http://www.qt-project.org/legal
5**
6** This file is part of the Qt3D module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL3$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see http://www.qt.io/terms-conditions. For further
15** information use the contact form at http://www.qt.io/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPLv3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or later as published by the Free
28** Software Foundation and appearing in the file LICENSE.GPL included in
29** the packaging of this file. Please review the following information to
30** ensure the GNU General Public License version 2.0 requirements will be
31** met: http://www.gnu.org/licenses/gpl-2.0.html.
32**
33** $QT_END_LICENSE$
34**
35****************************************************************************/
36
37#ifndef QT3DANIMATION_ANIMATION_CLIPBLENDNODE_P_H
38#define QT3DANIMATION_ANIMATION_CLIPBLENDNODE_P_H
39
40//
41// W A R N I N G
42// -------------
43//
44// This file is not part of the Qt API. It exists for the convenience
45// of other Qt classes. This header file may change from version to
46// version without notice, or even be removed.
47//
48// We mean it.
49//
50
51#include <Qt3DCore/qnodeid.h>
52#include <Qt3DAnimation/private/backendnode_p.h>
53#include <Qt3DAnimation/private/managers_p.h>
54
55QT_BEGIN_NAMESPACE
56
57namespace Qt3DAnimation {
58
59namespace Animation {
60
61class ClipBlendNodeManager;
62
63class Q_AUTOTEST_EXPORT ClipBlendNode : public BackendNode
64{
65public:
66 ~ClipBlendNode();
67
68 enum BlendType {
69 NoneBlendType,
70 LerpBlendType,
71 AdditiveBlendType,
72 ValueType
73 };
74
75 void setClipBlendNodeManager(ClipBlendNodeManager *manager);
76 inline ClipBlendNodeManager *clipBlendNodeManager() const { return m_manager; }
77
78 BlendType blendType() const;
79
80 void blend(Qt3DCore::QNodeId animatorId);
81
82 void setClipResults(Qt3DCore::QNodeId animatorId, const ClipResults &clipResults);
83 ClipResults clipResults(Qt3DCore::QNodeId animatorId) const;
84
85 virtual QVector<Qt3DCore::QNodeId> allDependencyIds() const = 0;
86 virtual QVector<Qt3DCore::QNodeId> currentDependencyIds() const = 0;
87 virtual double duration() const = 0;
88
89protected:
90 explicit ClipBlendNode(BlendType blendType);
91 void initializeFromPeer(const Qt3DCore::QNodeCreatedChangeBasePtr &change) override;
92 virtual ClipResults doBlend(const QVector<ClipResults> &blendData) const = 0;
93
94private:
95 ClipBlendNodeManager *m_manager;
96 BlendType m_blendType;
97
98 // Store the results of evaluations indexed by animator id
99 QVector<Qt3DCore::QNodeId> m_animatorIds;
100 QVector<ClipResults> m_clipResults;
101};
102
103template<typename Backend, typename Frontend>
104class ClipBlendNodeFunctor : public Qt3DCore::QBackendNodeMapper
105{
106public:
107 explicit ClipBlendNodeFunctor(Handler *handler, ClipBlendNodeManager *manager)
108 : m_handler(handler)
109 , m_manager(manager)
110 {
111 }
112
113 Qt3DCore::QBackendNode *create(const Qt3DCore::QNodeCreatedChangeBasePtr &change) const final
114 {
115 if (m_manager->containsNode(change->subjectId()))
116 return static_cast<Backend *>(m_manager->lookupNode(change->subjectId()));
117 Backend *backend = new Backend();
118 backend->setClipBlendNodeManager(m_manager);
119 backend->setHandler(m_handler);
120 m_manager->appendNode(change->subjectId(), backend);
121 return backend;
122 }
123
124 Qt3DCore::QBackendNode *get(Qt3DCore::QNodeId id) const final
125 {
126 return m_manager->lookupNode(id);
127 }
128
129 void destroy(Qt3DCore::QNodeId id) const final
130 {
131 m_manager->releaseNode(id);
132 }
133
134private:
135 Handler *m_handler;
136 ClipBlendNodeManager *m_manager;
137};
138
139} // Animation
140
141} // Qt3DAnimation
142
143QT_END_NAMESPACE
144
145#endif // QT3DANIMATION_ANIMATION_CLIPBLENDNODE_P_H
146