[patch] proposal of a patch to solve a crasher when saving a spreadsheet with track-change

Hello,

At Lanedo, we have been working on a bug described here:
https://bugs.freedesktop.org/show_bug.cgi?id=51249

We have been investigating this and our conclusion is that, when
track-change is enabled, you can have a discrepancy between the "Styles"
and the "Content" parts of your tables.

My colleague Pierre-Éric came with a patch that bascially enforce
recomputation of every changes when saving the document. (patch attached
to the bug and to this mail)

We don't know if the sollution is acceptable and, if not, what would be
an acceptable solution for this problem (which is quite important as it
implies crashing and loosing any unsaved data).



Lionel


PS: please put me in CC: when replying to this message.

From caa38d397d5ddb1ed422894d0b423adeeae07066 Mon Sep 17 00:00:00 2001
From: Pierre-Eric Pelloux-Prayer <pierre-eric@lanedo.com>
Date: Wed, 20 Jun 2012 12:55:24 +0200
Subject: [PATCH] fdo#51249 Disable stream copy when saving a file with
 'Changes Record' active

Change-Id: Id06caa5d0552e4f3695244de4f6096f80885a783
---
 sc/source/filter/xml/xmlexprt.cxx |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sc/source/filter/xml/xmlexprt.cxx b/sc/source/filter/xml/xmlexprt.cxx
index 9b105d6..1bfe200 100644
--- a/sc/source/filter/xml/xmlexprt.cxx
+++ b/sc/source/filter/xml/xmlexprt.cxx
@@ -1721,7 +1721,7 @@ void ScXMLExport::_ExportContent()
         {
             sal_Int32 nStartOffset = -1;
             sal_Int32 nEndOffset = -1;
-            if (pSheetData && pDoc && pDoc->IsStreamValid((SCTAB)nTable))
+            if (pSheetData && pDoc && pDoc->IsStreamValid((SCTAB)nTable) && 
!pDoc->GetChangeTrack())
                 pSheetData->GetStreamPos( nTable, nStartOffset, nEndOffset );
 
             if ( nStartOffset >= 0 && nEndOffset >= 0 && xSourceStream.is() )
@@ -2342,7 +2342,8 @@ void ScXMLExport::_ExportAutoStyles()
         for (sal_Int32 nTable = 0; nTable < nTableCount; ++nTable, IncrementProgressBar(false))
         {
             bool bUseStream = pSheetData && pDoc && pDoc->IsStreamValid((SCTAB)nTable) &&
-                              pSheetData->HasStreamPos(nTable) && xSourceStream.is();
+                              pSheetData->HasStreamPos(nTable) && xSourceStream.is() &&
+                              !pDoc->GetChangeTrack();
 
             Reference <sheet::XSpreadsheet> xTable(xIndex->getByIndex(nTable), uno::UNO_QUERY);
             if (!xTable.is())
-- 
1.7.10