Fix setting area series edge series after area series is shown

Now AreaChartItem properly updates its lower and upper series
when they are changed at QAreaSeries.

Task-number: QTBUG-55431
Change-Id: I379005e44128f06e5ff42e2aa12a563e5f8ac21c
Reviewed-by: Tomi Korpipää <tomi.korpipaa@qt.io>
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/charts/areachart/areachartitem_p.h b/src/charts/areachart/areachartitem_p.h
index 033a4977..399ed43d 100644
--- a/src/charts/areachart/areachartitem_p.h
+++ b/src/charts/areachart/areachartitem_p.h
@@ -60,6 +60,9 @@ public:
     void setPresenter(ChartPresenter *presenter);
     QAreaSeries *series() const { return m_series; }
 
+    void setUpperSeries(QLineSeries *series);
+    void setLowerSeries(QLineSeries *series);
+
 protected:
     void mousePressEvent(QGraphicsSceneMouseEvent *event);
     void hoverEnterEvent(QGraphicsSceneHoverEvent *event);