1 files changed, 24 insertions, 0 deletions
diff --git a/src/datavisualization/data/qcustom3ditem_p.h b/src/datavisualization/data/qcustom3ditem_p.h
index f85ec5bf..89f47501 100644
--- a/src/datavisualization/data/qcustom3ditem_p.h
+++ b/src/datavisualization/data/qcustom3ditem_p.h
@@ -33,6 +33,25 @@
 
 QT_BEGIN_NAMESPACE_DATAVISUALIZATION
 
+struct QCustomItemDirtyBitField {
+    bool textureDirty               : 1;
+    bool meshDirty                  : 1;
+    bool positionDirty              : 1;
+    bool scalingDirty               : 1;
+    bool rotationDirty              : 1;
+    bool visibleDirty               : 1;
+
+    QCustomItemDirtyBitField()
+        : textureDirty(false),
+          meshDirty(false),
+          positionDirty(false),
+          scalingDirty(false),
+          rotationDirty(false),
+          visibleDirty(false)
+    {
+    }
+};
+
 class QCustom3DItemPrivate : public QObject
 {
     Q_OBJECT
@@ -55,6 +74,11 @@ public:
     QQuaternion m_rotation;
     bool m_visible;
 
+    QCustomItemDirtyBitField m_dirtyBits;
+
+signals:
+    void needUpdate();
+
 private:
     friend class QCustom3DItem;
 };