QAttribute creates creation changes

Change-Id: Ief63118100f03266e53aebd9732d5247e6461383
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>

3 files changed, 31 insertions, 0 deletions

diff --git a/src/render/geometry/qattribute.cpp b/src/render/geometry/qattribute.cpp
index 3f94bff52..a0af3b259 100644
--- a/src/render/geometry/qattribute.cpp
+++ b/src/render/geometry/qattribute.cpp
@@ -397,6 +397,23 @@ QString QAttribute::defaultTangentAttributeName()
     return QStringLiteral("vertexTangent");
 }
 
+Qt3DCore::QNodeCreatedChangeBasePtr QAttribute::createNodeCreationChange() const
+{
+    auto creationChange = Qt3DCore::QNodeCreatedChangePtr<QAttributeData>::create(this);
+    auto &data = creationChange->data;
+    Q_D(const QAttribute);
+    data.bufferId = qIdForNode(d->m_buffer);
+    data.name = d->m_name;
+    data.dataType = d->m_dataType;
+    data.dataSize = d->m_dataSize;
+    data.count = d->m_count;
+    data.byteStride = d->m_byteStride;
+    data.byteOffset = d->m_byteOffset;
+    data.divisor = d->m_divisor;
+    data.attributeType = d->m_attributeType;
+    return creationChange;
+}
+
 } // Qt3DRender
 
 QT_END_NAMESPACE
diff --git a/src/render/geometry/qattribute.h b/src/render/geometry/qattribute.h
index 6fbf83f4d..99da0f1d4 100644
--- a/src/render/geometry/qattribute.h
+++ b/src/render/geometry/qattribute.h
@@ -136,6 +136,7 @@ protected:
 private:
     Q_DECLARE_PRIVATE(QAttribute)
     QT3D_CLONEABLE(QAttribute)
+    Qt3DCore::QNodeCreatedChangeBasePtr createNodeCreationChange() const Q_DECL_OVERRIDE;
 };
 
 } // Qt3DRender
diff --git a/src/render/geometry/qattribute_p.h b/src/render/geometry/qattribute_p.h
index 02b03987d..8731e3195 100644
--- a/src/render/geometry/qattribute_p.h
+++ b/src/render/geometry/qattribute_p.h
@@ -80,6 +80,19 @@ public:
     QAttribute::AttributeType m_attributeType;
 };
 
+struct QAttributeData
+{
+    Qt3DCore::QNodeId bufferId;
+    QString name;
+    QAttribute::VertexBaseType dataType;
+    uint dataSize;
+    uint count;
+    uint byteStride;
+    uint byteOffset;
+    uint divisor;
+    QAttribute::AttributeType attributeType;
+};
+
 } // Qt3DRender
 
 QT_END_NAMESPACE