Add backend node for QJoint

Change-Id: Ie06f41aefebf9c5c5d8dd8bcd68f9f352799ad18
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>

1 files changed, 113 insertions, 0 deletions

diff --git a/src/render/geometry/joint_p.h b/src/render/geometry/joint_p.h
new file mode 100644
index 000000000..9c26154eb
--- /dev/null
+++ b/src/render/geometry/joint_p.h
@@ -0,0 +1,113 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QT3DRENDER_RENDER_JOINT_H
+#define QT3DRENDER_RENDER_JOINT_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <Qt3DRender/private/backendnode_p.h>
+#include <Qt3DCore/private/sqt_p.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace Qt3DRender {
+namespace Render {
+
+class JointManager;
+
+class Q_AUTOTEST_EXPORT Joint : public BackendNode
+{
+public:
+    Joint();
+
+    void cleanup();
+    void sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e) override;
+
+    Qt3DCore::Sqt localPose() const { return m_localPose; }
+    QMatrix4x4 inverseBindMatrix() const { return m_inverseBindMatrix; }
+    QString name() const { return m_name; }
+    QVector<Qt3DCore::QNodeId> childJointIds() const { return m_childJointIds; }
+
+    QVector3D translation() const { return m_localPose.translation; }
+    QQuaternion rotation() const { return m_localPose.rotation; }
+    QVector3D scale() const { return m_localPose.scale; }
+
+    void setJointManager(JointManager *jointManager) { m_jointManager = jointManager; }
+    JointManager *jointManager() const { return m_jointManager; }
+
+private:
+    void initializeFromPeer(const Qt3DCore::QNodeCreatedChangeBasePtr &change) final;
+
+    QMatrix4x4 m_inverseBindMatrix;
+    Qt3DCore::Sqt m_localPose;
+    QVector<Qt3DCore::QNodeId> m_childJointIds;
+    QString m_name;
+    JointManager *m_jointManager;
+};
+
+class JointFunctor : public Qt3DCore::QBackendNodeMapper
+{
+public:
+    explicit JointFunctor(AbstractRenderer *renderer, JointManager *jointManager);
+    Qt3DCore::QBackendNode *create(const Qt3DCore::QNodeCreatedChangeBasePtr &change) const final;
+    Qt3DCore::QBackendNode *get(Qt3DCore::QNodeId id) const final;
+    void destroy(Qt3DCore::QNodeId id) const final;
+
+private:
+    AbstractRenderer *m_renderer;
+    JointManager *m_jointManager;
+};
+
+} // namespace Render
+} // namespace Qt3DRender
+
+
+QT_END_NAMESPACE
+
+#endif // QT3DRENDER_RENDER_JOINT_H