Introduce value axis formatter

Currently only used for label formatting.

Also some other preparatory changes for logaxis.

Task-number: QTRD-2787

Note: Not to be merged until 1.0 is released

Change-Id: I2d7ab70b9c51677d0edd5b0226fb779c9e346286
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/datavisualization/axis/qvalue3daxis_p.h b/src/datavisualization/axis/qvalue3daxis_p.h
index 21fd78ab..c198db75 100644
--- a/src/datavisualization/axis/qvalue3daxis_p.h
+++ b/src/datavisualization/axis/qvalue3daxis_p.h
@@ -46,14 +46,22 @@ public:
     virtual void setMin(float min);
     virtual void setMax (float max);
 
+signals:
+    void formatterDirty();
+
 protected:
     void emitLabelsChanged();
     virtual void updateLabels();
 
+    virtual bool allowZero();
+    virtual bool allowNegatives();
+    virtual bool allowMinMaxSame();
+
     int m_segmentCount;
     int m_subSegmentCount;
     QString m_labelFormat;
     bool m_labelsDirty;
+    QValue3DAxisFormatter *m_formatter;
 
 private:
     QValue3DAxis *qptr();