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diff --git a/src/datavisualization/data/qcustom3ditem_p.h b/src/datavisualization/data/qcustom3ditem_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the QtDataVisualization module.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the QtDataVisualization API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef QCUSTOM3DITEM_P_H
+#define QCUSTOM3DITEM_P_H
+
+#include "qcustom3ditem.h"
+
+QT_BEGIN_NAMESPACE_DATAVISUALIZATION
+
+struct QCustomItemDirtyBitField {
+    bool textureDirty               : 1;
+    bool meshDirty                  : 1;
+    bool positionDirty              : 1;
+    bool positionAbsoluteDirty      : 1;
+    bool scalingDirty               : 1;
+    bool rotationDirty              : 1;
+    bool visibleDirty               : 1;
+    bool shadowCastingDirty         : 1;
+
+    QCustomItemDirtyBitField()
+        : textureDirty(false),
+          meshDirty(false),
+          positionDirty(false),
+          positionAbsoluteDirty(false),
+          scalingDirty(false),
+          rotationDirty(false),
+          visibleDirty(false),
+          shadowCastingDirty(false)
+    {
+    }
+};
+
+class QCustom3DItemPrivate : public QObject
+{
+    Q_OBJECT
+public:
+    QCustom3DItemPrivate(QCustom3DItem *q);
+    QCustom3DItemPrivate(QCustom3DItem *q, const QString &meshFile, const QVector3D &position,
+                         const QVector3D &scaling, const QQuaternion &rotation);
+    virtual ~QCustom3DItemPrivate();
+
+    QImage textureImage();
+    void clearTextureImage();
+    void resetDirtyBits();
+
+public:
+    QCustom3DItem *q_ptr;
+    QImage m_textureImage;
+    QString m_textureFile;
+    QString m_meshFile;
+    QVector3D m_position;
+    bool m_positionAbsolute;
+    QVector3D m_scaling;
+    QQuaternion m_rotation;
+    bool m_visible;
+    bool m_shadowCasting;
+
+    bool m_isLabelItem;
+
+    QCustomItemDirtyBitField m_dirtyBits;
+
+signals:
+    void needUpdate();
+
+private:
+    QCustom3DItemPrivate(QCustom3DItemPrivate *d);
+
+    friend class QCustom3DItem;
+};
+
+QT_END_NAMESPACE_DATAVISUALIZATION
+
+#endif