speed up exporting very large spreadsheets to pdf

e.g. the one in tdf#102216
takes it from 27m16s to 6min28s

Change-Id: If6cf7dd49cb43f1749da29da91dab6646d4a0626
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/118382
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
(cherry picked from commit 8de4f0d77073a2a3850bbcdd09aa7f68c223da01)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/118419
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>

2 files changed, 3 insertions, 18 deletions

diff --git a/sc/source/ui/inc/printfun.hxx b/sc/source/ui/inc/printfun.hxx
index e9721837a57f..1a5eddea03cd 100644
--- a/sc/source/ui/inc/printfun.hxx
+++ b/sc/source/ui/inc/printfun.hxx
@@ -20,6 +20,7 @@
 #pragma once
 
 #include <memory>
+#include <map>
 #include <pagepar.hxx>
 #include <editutil.hxx>
 
@@ -124,7 +125,7 @@ public:
 
     std::vector<SCCOL> m_aPageEndX;
     std::vector<SCROW> m_aPageEndY;
-    std::vector<ScPageRowEntry> m_aPageRows;
+    std::map<size_t, ScPageRowEntry> m_aPageRows;
 
     size_t m_nPagesX;
     size_t m_nPagesY;
@@ -166,7 +167,7 @@ struct ScPrintState                         //  Save Variables from ScPrintFunc
     size_t nTotalY;
     std::vector<SCCOL> aPageEndX;
     std::vector<SCROW> aPageEndY;
-    std::vector<ScPageRowEntry> aPageRows;
+    std::map<size_t, ScPageRowEntry> aPageRows;
 
     ScPrintState()
         : nPrintTab(0)
diff --git a/sc/source/ui/view/printfun.cxx b/sc/source/ui/view/printfun.cxx
index f099247cc2c6..77d58b12a7a2 100644
--- a/sc/source/ui/view/printfun.cxx
+++ b/sc/source/ui/view/printfun.cxx
@@ -2482,10 +2482,7 @@ tools::Long ScPrintFunc::CountPages()                          // sets also nPag
                 CalcZoom(i);
                 if ( aTableParam.bSkipEmpty )
                     for (nY=0; nY< m_aRanges.m_nPagesY; nY++)
-                    {
-                        OSL_ENSURE(nY < m_aRanges.m_aPageRows.size(), "vector access error for aPageRows");
                         nPages += m_aRanges.m_aPageRows[nY].CountVisible();
-                    }
                 else
                     nPages += static_cast<tools::Long>(m_aRanges.m_nPagesX) * m_aRanges.m_nPagesY;
                 if ( pPageData )
@@ -2497,10 +2494,7 @@ tools::Long ScPrintFunc::CountPages()                          // sets also nPag
             CalcZoom(RANGENO_NORANGE);                      // calculate Zoom
             if ( aTableParam.bSkipEmpty )
                 for (nY=0; nY<m_aRanges.m_nPagesY; nY++)
-                {
-                    OSL_ENSURE(nY < m_aRanges.m_aPageRows.size(), "vector access error for aPageRows");
                     nPages += m_aRanges.m_aPageRows[nY].CountVisible();
-                }
             else
                 nPages += static_cast<tools::Long>(m_aRanges.m_nPagesX) * m_aRanges.m_nPagesY;
             if ( pPageData )
@@ -2695,7 +2689,6 @@ tools::Long ScPrintFunc::DoPrint( const MultiSelection& rPageRanges,
                 nX2 = m_aRanges.m_aPageEndX[nCountX];
                 for (nCountY=0; nCountY<m_aRanges.m_nPagesY; nCountY++)
                 {
-                    OSL_ENSURE(nCountY < m_aRanges.m_aPageRows.size(), "vector access error for aPageRows (!)");
                     nY1 = m_aRanges.m_aPageRows[nCountY].GetStartRow();
                     nY2 = m_aRanges.m_aPageRows[nCountY].GetEndRow();
                     if ( !aTableParam.bSkipEmpty || !m_aRanges.m_aPageRows[nCountY].IsHidden(nCountX) )
@@ -2716,7 +2709,6 @@ tools::Long ScPrintFunc::DoPrint( const MultiSelection& rPageRanges,
         {
             for (nCountY=0; nCountY<m_aRanges.m_nPagesY; nCountY++)
             {
-                OSL_ENSURE(nCountY < m_aRanges.m_aPageRows.size(), "vector access error for aPageRows");
                 nY1 = m_aRanges.m_aPageRows[nCountY].GetStartRow();
                 nY2 = m_aRanges.m_aPageRows[nCountY].GetEndRow();
                 nX1 = nStartCol;
@@ -3104,12 +3096,6 @@ void PrintPageRanges::calculate(ScDocument& rDoc,
         m_aPageEndY.resize(nRealCnt + 1, SCROW());
     }
 
-    // #i123672# use dynamic mem to react on size changes
-    if (m_aPageRows.size() < nRealCnt+1)
-    {
-        m_aPageRows.resize(nRealCnt+1, ScPageRowEntry());
-    }
-
     //  Page alignment/splitting after breaks in Col/RowFlags
     //  Of several breaks in a hidden area, only one counts.
 
@@ -3163,7 +3149,6 @@ void PrintPageRanges::calculate(ScDocument& rDoc,
 
             if (!bSkipEmpty || !rDoc.IsPrintEmpty(nPrintTab, nStartCol, nPageStartRow, nEndCol, nRow-1))
             {
-                OSL_ENSURE(m_nPagesY < m_aPageRows.size(), "vector access error for rPageRows");
                 m_aPageRows[m_nPagesY].SetStartRow(nPageStartRow);
                 m_aPageRows[m_nPagesY].SetEndRow(nRow - 1);
                 m_aPageRows[m_nPagesY].SetPagesX(m_nPagesX);
@@ -3204,7 +3189,6 @@ void PrintPageRanges::calculate(ScDocument& rDoc,
 
     if (!bSkipEmpty || !rDoc.IsPrintEmpty(nPrintTab, nStartCol, nPageStartRow, nEndCol, nEndRow))
     {
-        OSL_ENSURE(m_nPagesY < m_aPageRows.size(), "vector access error for maPageRows");
         m_aPageRows[m_nPagesY].SetStartRow(nPageStartRow);
         m_aPageRows[m_nPagesY].SetEndRow(nEndRow);
         m_aPageRows[m_nPagesY].SetPagesX(m_nPagesX);