tdf#97597: Make the document import state more multi-thread friendly.

Change-Id: Iee9ff5e5d3471f7357a1f2eaf75abbef2d90effa
Reviewed-on: https://gerrit.libreoffice.org/32322
Reviewed-by: Kohei Yoshida <libreoffice@kohei.us>
Tested-by: Kohei Yoshida <libreoffice@kohei.us>

1 files changed, 17 insertions, 0 deletions

diff --git a/sc/inc/mtvelements.hxx b/sc/inc/mtvelements.hxx
index ae3a91ad5b3f..ce1f4f53f200 100644
--- a/sc/inc/mtvelements.hxx
+++ b/sc/inc/mtvelements.hxx
@@ -33,6 +33,7 @@
 #include <mdds/multi_type_vector_custom_func3.hpp>
 
 #include <unordered_map>
+#include <memory>
 
 class ScDocument;
 class ScColumn;
@@ -154,6 +155,22 @@ public:
     void clear();
 };
 
+/**
+ * Set of column block positions only for one table.
+ */
+class TableColumnBlockPositionSet
+{
+    struct Impl;
+    std::unique_ptr<Impl> mpImpl;
+
+public:
+    TableColumnBlockPositionSet( ScDocument& rDoc, SCTAB nTab );
+    TableColumnBlockPositionSet( TableColumnBlockPositionSet&& rOther );
+    ~TableColumnBlockPositionSet();
+
+    ColumnBlockPosition* getBlockPosition( SCCOL nCol );
+};
+
 ScRefCellValue toRefCell( const sc::CellStoreType::const_iterator& itPos, size_t nOffset );
 
 }