Actually unknown script type doesn't equal empty script type (0).

Let's differentiate the two types.  A new cell starts with an unknown
script type, whereas empty cells have a script type of 0 (empty).

Change-Id: Id66857100ed213c5cfc37e48789448d94e97a5d2

5 files changed, 15 insertions, 16 deletions

diff --git a/sc/source/core/data/column.cxx b/sc/source/core/data/column.cxx
index 404dc485a246..e8a39ad580ad 100644
--- a/sc/source/core/data/column.cxx
+++ b/sc/source/core/data/column.cxx
@@ -61,23 +61,23 @@ ScNeededSizeOptions::ScNeededSizeOptions() :
 
 void ScColumn::SwapScriptTypes( ScriptType& rSrc, SCROW nSrcRow, ScriptType& rDest, SCROW nDestRow )
 {
-    unsigned short nSrcVal = SC_SCRIPTTYPE_UNKNOWN;
-    unsigned short nDestVal = SC_SCRIPTTYPE_UNKNOWN;
+    unsigned short nSrcVal = 0;
+    unsigned short nDestVal = 0;
 
     if (!rSrc.is_empty(nSrcRow))
         nSrcVal = rSrc.get<unsigned short>(nSrcRow);
     if (!rDest.is_empty(nDestRow))
         nDestVal = rDest.get<unsigned short>(nDestRow);
 
-    if (nDestVal == SC_SCRIPTTYPE_UNKNOWN)
-        rSrc.set_empty(nSrcRow, nSrcRow);
-    else
+    if (nDestVal)
         rSrc.set(nSrcRow, nDestVal);
-
-    if (nSrcVal == SC_SCRIPTTYPE_UNKNOWN)
-        rDest.set_empty(nDestRow, nDestRow);
     else
+        rSrc.set_empty(nSrcRow, nSrcRow);
+
+    if (nSrcVal)
         rDest.set(nDestRow, nSrcVal);
+    else
+        rDest.set_empty(nDestRow, nDestRow);
 }
 
 ScColumn::ScColumn() :
diff --git a/sc/source/core/data/column2.cxx b/sc/source/core/data/column2.cxx
index 92263af973b6..330154226f14 100644
--- a/sc/source/core/data/column2.cxx
+++ b/sc/source/core/data/column2.cxx
@@ -1509,7 +1509,7 @@ void ScColumn::SetTextWidth(SCROW nRow, unsigned short nWidth)
 sal_uInt8 ScColumn::GetScriptType( SCROW nRow ) const
 {
     if (!ValidRow(nRow) || maScriptTypes.is_empty(nRow))
-        return SC_SCRIPTTYPE_UNKNOWN;
+        return 0;
 
     return maScriptTypes.get<unsigned short>(nRow);
 }
@@ -1519,8 +1519,7 @@ void ScColumn::SetScriptType( SCROW nRow, sal_uInt8 nType )
     if (!ValidRow(nRow))
         return;
 
-    if (nType == SC_SCRIPTTYPE_UNKNOWN)
-        // empty element represents unknown script type.
+    if (!nType)
         maScriptTypes.set_empty(nRow, nRow);
     else
         maScriptTypes.set<unsigned short>(nRow, nType);
diff --git a/sc/source/core/data/column3.cxx b/sc/source/core/data/column3.cxx
index 3c1dc965a091..28340a2e0251 100644
--- a/sc/source/core/data/column3.cxx
+++ b/sc/source/core/data/column3.cxx
@@ -97,7 +97,7 @@ void ScColumn::Insert( SCROW nRow, ScBaseCell* pNewCell )
         }
 
         maTextWidths.set<unsigned short>(nRow, TEXTWIDTH_DIRTY);
-        maScriptTypes.set_empty(nRow, nRow); // empty element represents unknown script state.
+        maScriptTypes.set<unsigned short>(nRow, SC_SCRIPTTYPE_UNKNOWN);
         CellStorageModified();
     }
     // When we insert from the Clipboard we still have wrong (old) References!
@@ -143,7 +143,7 @@ void ScColumn::Append( SCROW nRow, ScBaseCell* pCell )
     maItems.back().nRow  = nRow;
 
     maTextWidths.set<unsigned short>(nRow, TEXTWIDTH_DIRTY);
-    maScriptTypes.set_empty(nRow, nRow); // empty element represents unknown script state.
+    maScriptTypes.set<unsigned short>(nRow, SC_SCRIPTTYPE_UNKNOWN);
     CellStorageModified();
 }
 
@@ -1447,7 +1447,7 @@ bool ScColumn::SetString( SCROW nRow, SCTAB nTabP, const String& rString,
                 pOldCell->Delete();
                 maItems[i].pCell = pNewCell; // Replace
                 maTextWidths.set<unsigned short>(nRow, TEXTWIDTH_DIRTY);
-                maScriptTypes.set_empty(nRow, nRow); // empty element represents unknown script state.
+                maScriptTypes.set<unsigned short>(nRow, SC_SCRIPTTYPE_UNKNOWN);
                 CellStorageModified();
 
                 if ( pNewCell->GetCellType() == CELLTYPE_FORMULA )
diff --git a/sc/source/core/data/document.cxx b/sc/source/core/data/document.cxx
index 1d75d56ec327..16d427790f6c 100644
--- a/sc/source/core/data/document.cxx
+++ b/sc/source/core/data/document.cxx
@@ -5717,7 +5717,7 @@ sal_uInt8 ScDocument::GetScriptType( const ScAddress& rPos ) const
     if (ValidTab(nTab) && nTab < static_cast<SCTAB>(maTabs.size()) && maTabs[nTab])
         return maTabs[nTab]->GetScriptType(rPos.Col(), rPos.Row());
 
-    return SC_SCRIPTTYPE_UNKNOWN;
+    return 0;
 }
 
 void ScDocument::SetScriptType( const ScAddress& rPos, sal_uInt8 nType )
diff --git a/sc/source/core/data/table1.cxx b/sc/source/core/data/table1.cxx
index cfe0e57d995f..38d705c9100d 100644
--- a/sc/source/core/data/table1.cxx
+++ b/sc/source/core/data/table1.cxx
@@ -2083,7 +2083,7 @@ sal_uLong ScTable::AddCondFormat( ScConditionalFormat* pNew )
 sal_uInt8 ScTable::GetScriptType( SCCOL nCol, SCROW nRow ) const
 {
     if (!ValidCol(nCol))
-        return SC_SCRIPTTYPE_UNKNOWN;
+        return 0;
 
     return aCol[nCol].GetScriptType(nRow);
 }