tdf#90839 - added support for inside placement for the best fit case

Change-Id: I4cd47d843e6892edfa43c37c131dde9cd324579a
Reviewed-on: https://gerrit.libreoffice.org/15520Reviewed-by: Andras Timar <andras.timar@collabora.com>
Tested-by: Andras Timar <andras.timar@collabora.com>

chart2/source/view/charttypes/PieChart.hxx

@@ -108,6 +108,10 @@ struct PieLabelInfo;
                                 , PieLabelInfo* pCenter, bool bSingleCenter, bool& rbAlternativeMoveDirection
                                 , const ::com::sun::star::awt::Size& rPageSize );
 
+    bool                performLabelBestFitInnerPlacement(ShapeParam& rShapeParam, PieLabelInfo& rPieLabelInfo);
+    bool                performLabelBestFitOuterPlacement(ShapeParam& rShapeParam, PieLabelInfo& rPieLabelInfo);
+    void                performLabelBestFit(ShapeParam& rShapeParam, PieLabelInfo& rPieLabelInfo);
+
 private: //member
     PiePositionHelper*    m_pPosHelper;
     bool                  m_bUseRings;