Optimize multiple series rendering.

Cache all series instead of just the visible ones on all graphs
instead of just surface.
Changes to one series now trigger data update to only the affected
series, which should significantly improve performance in these
cases.

Task-number: QTRD-2600
Task-number: QTRD-2957

Change-Id: I6db7c689108fce8d25aace6682a193936d6f0eaf
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

1 files changed, 0 insertions, 6 deletions

diff --git a/src/datavisualization/data/barrenderitem_p.h b/src/datavisualization/data/barrenderitem_p.h
index 1122053d..97c069e2 100644
--- a/src/datavisualization/data/barrenderitem_p.h
+++ b/src/datavisualization/data/barrenderitem_p.h
@@ -54,16 +54,10 @@ public:
     inline void setHeight(GLfloat height) { m_height = height; }
     inline GLfloat height() const { return m_height; }
 
-    // Series index in visual series that this item belongs to.
-    // This is only utilized by slicing, so it may not be up to date on all items.
-    inline void setSeriesIndex(int seriesIndex) { m_seriesIndex = seriesIndex; }
-    inline int seriesIndex() const { return m_seriesIndex; }
-
 protected:
     float m_value;
     QPoint m_position; // x = row, y = column
     GLfloat m_height;
-    int m_seriesIndex;
 
     friend class QBarDataItem;
 };