1 files changed, 8 insertions, 4 deletions
diff --git a/src/datavisualization/axis/qcategory3daxis_p.h b/src/datavisualization/axis/qcategory3daxis_p.h
index 1ba5ccb0..27126620 100644
--- a/src/datavisualization/axis/qcategory3daxis_p.h
+++ b/src/datavisualization/axis/qcategory3daxis_p.h
@@ -26,13 +26,12 @@
 //
 // We mean it.
 
-#include "qcategory3daxis.h"
-#include "qabstract3daxis_p.h"
-#include "qbardataitem.h"
-
 #ifndef QCATEGORY3DAXIS_P_H
 #define QCATEGORY3DAXIS_P_H
 
+#include "qcategory3daxis.h"
+#include "qabstract3daxis_p.h"
+
 QT_BEGIN_NAMESPACE_DATAVISUALIZATION
 
 class QCategory3DAxisPrivate : public QAbstract3DAxisPrivate
@@ -45,6 +44,11 @@ public:
 
     void setDataLabels(const QStringList &labels);
 
+protected:
+    virtual bool allowZero();
+    virtual bool allowNegatives();
+    virtual bool allowMinMaxSame();
+
 private:
     QCategory3DAxis *qptr();