Add ClipBlendValue backend node and test

Task-number: QTBUG-58901
Change-Id: Ifa18b6bae2f8db802e6561d23a19435c32fe7559
Reviewed-by: Mike Krus <mike.krus@kdab.com>

1 files changed, 87 insertions, 0 deletions

diff --git a/src/animation/backend/clipblendvalue.cpp b/src/animation/backend/clipblendvalue.cpp
new file mode 100644
index 000000000..0607340c7
--- /dev/null
+++ b/src/animation/backend/clipblendvalue.cpp
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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.LGPLv3 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.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 later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "clipblendvalue_p.h"
+#include <Qt3DAnimation/qclipblendnodecreatedchange.h>
+#include <Qt3DAnimation/qclipblendvalue.h>
+#include <Qt3DAnimation/private/qclipblendvalue_p.h>
+#include <Qt3DCore/qpropertyupdatedchange.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace Qt3DAnimation {
+namespace Animation {
+
+ClipBlendValue::ClipBlendValue()
+    : ClipBlendNode(ValueType)
+{
+}
+
+ClipBlendValue::~ClipBlendValue()
+{
+}
+
+void ClipBlendValue::initializeFromPeer(const Qt3DCore::QNodeCreatedChangeBasePtr &change)
+{
+    ClipBlendNode::initializeFromPeer(change);
+    const auto creationChange
+            = qSharedPointerCast<QClipBlendNodeCreatedChange<QClipBlendValueData>>(change);
+    const Qt3DAnimation::QClipBlendValueData data = creationChange->data;
+    m_clipId = data.clipId;
+}
+
+void ClipBlendValue::sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e)
+{
+    if (e->type() == Qt3DCore::PropertyUpdated) {
+        Qt3DCore::QPropertyUpdatedChangePtr change = qSharedPointerCast<Qt3DCore::QPropertyUpdatedChange>(e);
+        if (change->propertyName() == QByteArrayLiteral("clip"))
+            m_clipId = change->value().value<Qt3DCore::QNodeId>();
+    }
+}
+
+float ClipBlendValue::blend(float value1, float value2) const
+{
+    // Should never be called for the value node
+    Q_UNUSED(value1);
+    Q_UNUSED(value2);
+    Q_UNREACHABLE();
+    return 0.0f;
+}
+
+} // namespace Animation
+} // namespace Qt3DAnimation
+
+QT_END_NAMESPACE