diff options
| author | Michael Stahl <Michael.Stahl@cib.de> | 2019-06-26 19:02:18 +0200 |
|---|---|---|
| committer | Michael Stahl <Michael.Stahl@cib.de> | 2019-06-27 10:43:28 +0200 |
| commit | f8e4845fec50affc20272600a4baf87554b055fb (patch) | |
| tree | 798557d19b518fa7ba3625b0589a43808034e1af /sw/source/core/layout/calcmove.cxx | |
| parent | 459de9c585505b43acd184c00a0251bf7a7c8768 (diff) | |
tdf#125751 sw: tweak assert in SwFrame::PrepareMake() a bit more
This fixes 2 cases of the assert that was added in commit
e14056e6e88d9b8d988b7b88b2776a8fc952031b
* tdf#125751 bugdoc would assert because on a page there were a bunch of
empty section frames preceding 2 SwTextFrames; the first SwTextFrame
moved backwards skipping over the empty section frames, hence the
second SwTextFrame is not the mpNext of the first one's follow
* writerfilter_null_ptr_deref.sample had a SwTextNode with >80k
characters; turns out there is a check in SwTextFrame::CalcFollow()
to format only up to 10 follow frames, so the result is 2 follow
frames on the same page
Change-Id: Ia08afd5a0e227d0613421d74b469c409ee91cfca
Reviewed-on: https://gerrit.libreoffice.org/74748
Tested-by: Jenkins
Reviewed-by: Michael Stahl <Michael.Stahl@cib.de>
Diffstat (limited to 'sw/source/core/layout/calcmove.cxx')
| -rw-r--r-- | sw/source/core/layout/calcmove.cxx | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/sw/source/core/layout/calcmove.cxx b/sw/source/core/layout/calcmove.cxx index 874168d40fcb..c142221cedc5 100644 --- a/sw/source/core/layout/calcmove.cxx +++ b/sw/source/core/layout/calcmove.cxx @@ -326,7 +326,13 @@ void SwFrame::PrepareMake(vcl::RenderContext* pRenderContext) && SwFlowFrame::CastFlowFrame(GetUpper()->Lower()) && SwFlowFrame::CastFlowFrame(pFrame)->IsAnFollow( SwFlowFrame::CastFlowFrame(GetUpper()->Lower())) - && GetUpper()->Lower()->GetNext() == this)); + && (GetUpper()->Lower()->GetNext() == this + // if it's more than 10 pages long... + || (SwFlowFrame::CastFlowFrame(GetUpper()->Lower())->GetFollow() + == SwFlowFrame::CastFlowFrame(GetUpper()->Lower()->GetNext()) + && GetUpper()->Lower()->GetNext()->GetNext() == this) + // pre-existing empty section frames may end up between them... + || GetUpper()->Lower()->GetNext()->IsSctFrame()))); break; // tdf#119109 frame was moved backward, prevent // FindNext() returning a frame inside this if } // this is a table! @@ -455,7 +461,13 @@ void SwFrame::PrepareCursor() && SwFlowFrame::CastFlowFrame(GetUpper()->Lower()) && SwFlowFrame::CastFlowFrame(pFrame)->IsAnFollow( SwFlowFrame::CastFlowFrame(GetUpper()->Lower())) - && GetUpper()->Lower()->GetNext() == this)); + && (GetUpper()->Lower()->GetNext() == this + // if it's more than 10 pages long... + || (SwFlowFrame::CastFlowFrame(GetUpper()->Lower())->GetFollow() + == SwFlowFrame::CastFlowFrame(GetUpper()->Lower()->GetNext()) + && GetUpper()->Lower()->GetNext()->GetNext() == this) + // pre-existing empty section frames may end up between them... + || GetUpper()->Lower()->GetNext()->IsSctFrame()))); break; // tdf#119109 frame was moved backward, prevent // FindNext() returning a frame inside this if } // this is a table! |