reduce some unnecessary ScRangeList copying

and reduce unnecessary work in ScRangeList

Change-Id: I0ee767fe28571f75f8a2ff980cea27c97c9797dc
Reviewed-on: https://gerrit.libreoffice.org/54705
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

sc/source/core/data/document.cxx

@@ -5087,7 +5087,7 @@ void ScDocument::GetSelectionFrame( const ScMarkData& rMark,
         bool bMultipleRows = false, bMultipleCols = false;
         for( size_t nRangeIdx = 0; nRangeIdx < nRangeCount; ++nRangeIdx )
         {
-            const ScRange rRange = aRangeList[ nRangeIdx ];
+            const ScRange & rRange = aRangeList[ nRangeIdx ];
             bMultipleRows = ( bMultipleRows || ( rRange.aStart.Row() != rRange.aEnd.Row() ) );
             bMultipleCols = ( bMultipleCols || ( rRange.aStart.Col() != rRange.aEnd.Col() ) );
             SCTAB nMax = static_cast<SCTAB>(maTabs.size());

sc/source/core/tool/rangelst.cxx

@@ -76,18 +76,6 @@ private:
     const T& mrTest;
 };
 
-class AppendToList
-{
-public:
-    explicit AppendToList(vector<ScRange>& rRanges) : mrRanges(rRanges) {}
-    void operator() (const ScRange& r)
-    {
-        mrRanges.push_back(r);
-    }
-private:
-    vector<ScRange>& mrRanges;
-};
-
 class CountCells
 {
 public:
@@ -143,7 +131,6 @@ private:
 //  ScRangeList
 ScRangeList::~ScRangeList()
 {
-    RemoveAll();
 }
 
 ScRefFlags ScRangeList::Parse( const OUString& rStr, const ScDocument* pDoc,
@@ -1034,11 +1021,9 @@ ScRangeList::ScRangeList() : mnMaxRowUsed(-1) {}
 
 ScRangeList::ScRangeList( const ScRangeList& rList ) :
     SvRefBase(),
-    mnMaxRowUsed(-1)
+    maRanges(rList.maRanges),
+    mnMaxRowUsed(rList.mnMaxRowUsed)
 {
-    maRanges.reserve(rList.maRanges.size());
-    for_each(rList.maRanges.begin(), rList.maRanges.end(), AppendToList(maRanges));
-    mnMaxRowUsed = rList.mnMaxRowUsed;
 }
 
 ScRangeList::ScRangeList( const ScRangeList&& rList ) :
@@ -1057,9 +1042,7 @@ ScRangeList::ScRangeList( const ScRange& rRange ) :
 
 ScRangeList& ScRangeList::operator=(const ScRangeList& rList)
 {
-    RemoveAll();
+    maRanges = rList.maRanges;
-    maRanges.reserve(rList.maRanges.size());
-    for_each(rList.maRanges.begin(), rList.maRanges.end(), AppendToList(maRanges));
     mnMaxRowUsed = rList.mnMaxRowUsed;
     return *this;
 }
@@ -1098,6 +1081,7 @@ void ScRangeList::Remove(size_t nPos)
 void ScRangeList::RemoveAll()
 {
     maRanges.clear();
+    mnMaxRowUsed = -1;
 }
 
 ScRange ScRangeList::Combine() const

sc/source/ui/docshell/docfunc.cxx

@@ -511,14 +511,13 @@ static void lcl_collectAllPredOrSuccRanges(
 {
     ScDocument& rDoc = rDocShell.GetDocument();
     vector<ScTokenRef> aRefTokens;
-    ScRangeList aSrcRanges(rSrcRanges);
+    if (rSrcRanges.empty())
-    if (aSrcRanges.empty())
         return;
-    ScRange const & rFrontRange = aSrcRanges.front();
+    ScRange const & rFrontRange = rSrcRanges.front();
     ScDetectiveFunc aDetFunc(&rDoc, rFrontRange.aStart.Tab());
-    for (size_t i = 0, n = aSrcRanges.size(); i < n; ++i)
+    for (size_t i = 0, n = rSrcRanges.size(); i < n; ++i)
     {
-        ScRange const & r = aSrcRanges[i];
+        ScRange const & r = rSrcRanges[i];
         if (bPred)
         {
             aDetFunc.GetAllPreds(