sc: refactor sparkline struture to store a list of sparklines

We need to access a list of sparklines and sparkline groups for
a sheet. To preven going through all the columns of a sheet, we
need to store all the created sparklines in a list. For this it
is necessary to change the model structrue a bit. A cell now has
a container that stores a shared_ptr to the sparkline instead of
storing the sparkline directly. With this we can store a list
of weak_ptr to the sparklines in a list (vector), which can be
accessed at any time and is quite fast.

This is needed by the OOXML export.

Change-Id: Iaca0a41e20912775f072ea6e8cab9c44367d6f30
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/131919
Tested-by: Tomaž Vajngerl <quikee@gmail.com>
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/sc/inc/column.hxx b/sc/inc/column.hxx
index f04d54aca739..db72de87bbf1 100644
--- a/sc/inc/column.hxx
+++ b/sc/inc/column.hxx
@@ -661,8 +661,8 @@ public:
     void BroadcastRows( SCROW nStartRow, SCROW nEndRow, SfxHintId nHint );
 
     // Spaklines
-    sc::Sparkline* GetSparkline(SCROW nRow);
-    void SetSparkline(SCROW nRow, std::unique_ptr<sc::Sparkline> pSparkline);
+    sc::SparklineCell* GetSparklineCell(SCROW nRow);
+    void CreateSparklineCell(SCROW nRow, std::shared_ptr<sc::Sparkline> const& pSparkline);
 
     // cell notes
     ScPostIt* GetCellNote( SCROW nRow );