Use orcus csv parser to streamd data which has much less overhead.

Also, use DocumentStreamAccess to modify ScDocument's content.

Change-Id: I516260cff1f2315267afcff05e36e620798a1aed

2 files changed, 26 insertions, 0 deletions

diff --git a/sc/inc/documentstreamaccess.hxx b/sc/inc/documentstreamaccess.hxx
index 1450f211d8d9..74f8914f4dce 100644
--- a/sc/inc/documentstreamaccess.hxx
+++ b/sc/inc/documentstreamaccess.hxx
@@ -10,7 +10,11 @@
 #ifndef SC_DOCUMENTSTREAMACCESS_HXX
 #define SC_DOCUMENTSTREAMACCESS_HXX
 
+#include <rtl/ustring.hxx>
+
 class ScDocument;
+class ScAddress;
+class ScRange;
 
 namespace sc {
 
@@ -28,6 +32,26 @@ class DocumentStreamAccess
 
 public:
     DocumentStreamAccess( ScDocument& rDoc );
+
+    void setStringCell( const ScAddress& rPos, const OUString& rStr );
+
+    /**
+     * Clear its internal state, and more importantly all the block position
+     * hints currently held.
+     */
+    void reset();
+
+    /**
+     * Pop the top row inside specified range, shift all the other rows up by
+     * one, then set the bottom row empty.
+     */
+    void shiftRangeUp( const ScRange& rRange );
+
+    /**
+     * Top the bottom row inside specified range, shift all the other rows
+     * above downward by one by inserting an empty row at the top.
+     */
+    void shiftRangeDown( const ScRange& rRange );
 };
 
 }
diff --git a/sc/inc/mtvelements.hxx b/sc/inc/mtvelements.hxx
index e5efbf13f804..0fcafdecce98 100644
--- a/sc/inc/mtvelements.hxx
+++ b/sc/inc/mtvelements.hxx
@@ -145,6 +145,8 @@ public:
     ColumnBlockPositionSet(ScDocument& rDoc);
 
     ColumnBlockPosition* getBlockPosition(SCTAB nTab, SCCOL nCol);
+
+    void clear();
 };
 
 ScRefCellValue toRefCell( const sc::CellStoreType::const_iterator& itPos, size_t nOffset );