n717290: Feature to allow string constants in chart ranges.

Chart ranges specifically for labels can now be of the form
="Label1". This allows labels to be picked from chart data (from UI)
rather than from the sheet.

sc/source/core/tool/reftokenhelper.cxx

@@ -46,11 +46,23 @@ using ::std::vector;
 using ::std::auto_ptr;
 using ::rtl::OUString;
 
+static bool lcl_mayBeRangeConstString( const OUString &aRangeStr )
+{
+    if( aRangeStr.getLength() >= 3 && aRangeStr.endsWithAsciiL( "\"", 1 ) )
+        if( aRangeStr[0] == '"' )
+            return true;
+        else if( aRangeStr[0] == '=' && aRangeStr[1] == '"' )
+            return true;
+
+    return false;
+}
+
 void ScRefTokenHelper::compileRangeRepresentation(
     vector<ScTokenRef>& rRefTokens, const OUString& rRangeStr, ScDocument* pDoc,
     const sal_Unicode cSep, FormulaGrammar::Grammar eGrammar)
 {
     const sal_Unicode cQuote = '\'';
+    bool bMayBeConstString = lcl_mayBeRangeConstString( rRangeStr );
 
     // #i107275# ignore parentheses
     OUString aRangeStr = rRangeStr;
@@ -80,7 +92,7 @@ void ScRefTokenHelper::compileRangeRepresentation(
         else
         {
             pArray->Reset();
-            const FormulaToken* p = pArray->GetNextReference();
+            const FormulaToken* p = pArray->Next();
             if (!p)
                 bFailure = true;
             else
@@ -104,8 +116,14 @@ void ScRefTokenHelper::compileRangeRepresentation(
                         if (!pT->GetDoubleRef().ValidExternal())
                             bFailure = true;
                         break;
+                    case svString:
+                        if (!bMayBeConstString)
+                            bFailure = true;
+                        bMayBeConstString = false;
+                        break;
                     default:
-                        ;
+                        bFailure = true;
+                        break;
                 }
                 if (!bFailure)
                     rRefTokens.push_back(

sc/source/filter/excel/xichart.cxx

@@ -862,6 +862,18 @@ Reference< XDataSequence > XclImpChSourceLink::CreateDataSequence( const OUStrin
 //            OSL_FAIL( "XclImpChSourceLink::CreateDataSequence - cannot create data sequence" );
         }
     }
+    else if( rRole == EXC_CHPROP_ROLE_LABEL && mxString && mxString->GetText().Len() )
+    {
+        try
+        {
+            OUString aString = OUString::createFromAscii("\"");
+            xDataSeq = xDataProv->createDataSequenceByRangeRepresentation( aString + mxString->GetText() + aString );
+            // set sequence role
+            ScfPropertySet aSeqProp( xDataSeq );
+            aSeqProp.SetProperty( EXC_CHPROP_ROLE, rRole );
+        }
+        catch( Exception& ) { }
+    }
     return xDataSeq;
 }
 

sc/source/ui/unoobj/chart2uno.cxx

@@ -371,7 +371,7 @@ Chart2PositionMap::Chart2PositionMap(SCCOL nAllColCount,  SCROW nAllRowCount,
     maData.init(mnDataColCount,mnDataRowCount);
 
     Table* pCol = static_cast<Table*>(rCols.First());
-    FormulaToken* pToken = static_cast<FormulaToken*>(pCol->First());
+    FormulaToken* pToken = NULL;
     for (SCCOL nCol = 0; nCol < nAllColCount; ++nCol)
     {
         if (pCol)
@@ -725,7 +725,8 @@ void Chart2Positioner::createPositionMap()
         String aTabName = bExternal ? pToken->GetString() : String();
 
         ScComplexRefData aData;
-        ScRefTokenHelper::getDoubleRefDataFromToken(aData, *itr);
+        if( !ScRefTokenHelper::getDoubleRefDataFromToken(aData, *itr) )
+            break;
         const ScSingleRefData& s = aData.Ref1;
         const ScSingleRefData& e = aData.Ref2;
         SCCOL nCol1 = s.nCol, nCol2 = e.nCol;
@@ -2880,17 +2881,29 @@ uno::Sequence< double > SAL_CALL ScChart2DataSequence::getNumericalData()
 uno::Sequence< rtl::OUString > SAL_CALL ScChart2DataSequence::getTextualData(  ) throw (uno::RuntimeException)
 {
     SolarMutexGuard aGuard;
-    if ( !m_pDocument)
+    uno::Sequence<rtl::OUString> aSeq;
+    if ( !m_pDocument )
         throw uno::RuntimeException();
 
     BuildDataCache();
 
     sal_Int32 nCount = m_aDataArray.size();
-    uno::Sequence<rtl::OUString> aSeq(nCount);
+    if ( nCount > 0 )
+    {
+        aSeq =  uno::Sequence<rtl::OUString>(nCount);
         rtl::OUString* pArr = aSeq.getArray();
         ::std::list<Item>::const_iterator itr = m_aDataArray.begin(), itrEnd = m_aDataArray.end();
-    for (; itr != itrEnd; ++itr, ++pArr)
+        for(; itr != itrEnd; ++itr, ++pArr)
             *pArr = itr->maString;
+    }
+    else if ( m_pTokens.get() && m_pTokens->front() )
+    {
+        if( m_pTokens->front()->GetType() == svString )
+        {
+            aSeq = uno::Sequence<rtl::OUString>(1);
+            aSeq[0] = m_pTokens->front()->GetString();
+        }
+    }
 
     return aSeq;
 }