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authorMichael Stahl <Michael.Stahl@cib.de>2019-01-21 12:30:20 +0100
committerMichael Stahl <Michael.Stahl@cib.de>2019-01-21 14:53:29 +0100
commit0acde7514e666fc04805fd36503bd174162336ca (patch)
tree6a0f1d2cd4963cff538127076621ee8c171637ea
parent1b1999009962b9d79858139bd7573947f78e6669 (diff)
sw_redlinehide: fix assert caused by buggy lcl_ModifyOfst
converting ooo67907-1.doc to ODT asserts in fillSoftPageBreakList() while mapping an invalid (too large) GetOfst() of a follow frame. There are some problems with the lcl_ModifyOfst() implementation and usage: 1. the implementation iterates over all follows; but the follows will get the same SwClientNotify() call as the frame itself, so in effect the follows' Ofsts will be modified multiple times 2. the calls to lcl_ModifyOfst pass in a positive nLen whether the text is deleted or inserted; surely for deletions the Ofst should be subtracted from instead of added to 3. the special-casing of RES_DEL_CHR to COMPLETE_STRING while RES_DEL_TXT uses the length does not appear to be justified The assert happens since b15f1ed2a1df45a57b587ac90efa90c1c18866fc but the lcl_ModifyOfst logic never made sense. Change-Id: Ie92628515bbee0fcc2123eb412057d8c0fd0b2f1 Reviewed-on: https://gerrit.libreoffice.org/66679 Tested-by: Jenkins Reviewed-by: Michael Stahl <Michael.Stahl@cib.de>
-rw-r--r--sw/source/core/text/txtfrm.cxx38
1 files changed, 14 insertions, 24 deletions
diff --git a/sw/source/core/text/txtfrm.cxx b/sw/source/core/text/txtfrm.cxx
index f1f3708f9fde..10a5b5e56270 100644
--- a/sw/source/core/text/txtfrm.cxx
+++ b/sw/source/core/text/txtfrm.cxx
@@ -1788,17 +1788,15 @@ static void lcl_SetScriptInval(SwTextFrame& rFrame, TextFrameIndex const nPos)
rFrame.GetPara()->GetScriptInfo().SetInvalidityA( nPos );
}
-static void lcl_ModifyOfst(SwTextFrame* pFrame, TextFrameIndex const nPos, TextFrameIndex const nLen)
+// note: SwClientNotify will be called once for every frame => just fix own Ofst
+static void lcl_ModifyOfst(SwTextFrame & rFrame,
+ TextFrameIndex const nPos, TextFrameIndex const nLen,
+ TextFrameIndex (* op)(TextFrameIndex const&, TextFrameIndex const&))
{
- while( pFrame && pFrame->GetOfst() <= nPos )
- pFrame = pFrame->GetFollow();
- while( pFrame )
+ assert(nLen != TextFrameIndex(COMPLETE_STRING));
+ if (rFrame.IsFollow() && nPos < rFrame.GetOfst())
{
- if (nLen == TextFrameIndex(COMPLETE_STRING))
- pFrame->ManipOfst(TextFrameIndex(pFrame->GetText().getLength()));
- else
- pFrame->ManipOfst( pFrame->GetOfst() + nLen );
- pFrame = pFrame->GetFollow();
+ rFrame.ManipOfst( op(rFrame.GetOfst(), nLen) );
}
}
@@ -1859,11 +1857,8 @@ void UpdateMergedParaForMove(sw::MergedPara & rMerged,
{
// InvalidateRange/lcl_SetScriptInval was called sufficiently for SwInsText
lcl_SetWrong(rTextFrame, rDestNode, nStart, it.first - it.second, false);
- if (rTextFrame.HasFollow())
- {
- TextFrameIndex const nIndex(sw::MapModelToView(rMerged, &rDestNode, nStart));
- lcl_ModifyOfst(&rTextFrame, nIndex, nDeleted); // FIXME why positive?
- }
+ TextFrameIndex const nIndex(sw::MapModelToView(rMerged, &rDestNode, nStart));
+ lcl_ModifyOfst(rTextFrame, nIndex, nDeleted, &o3tl::operator-<sal_Int32, Tag_TextFrameIndex>);
}
}
}
@@ -1994,8 +1989,7 @@ void SwTextFrame::SwClientNotify(SwModify const& rModify, SfxHint const& rHint)
{
lcl_SetScriptInval( *this, nPos );
bSetFieldsDirty = bRecalcFootnoteFlag = true;
- if (HasFollow())
- lcl_ModifyOfst( this, nPos, nLen );
+ lcl_ModifyOfst(*this, nPos, nLen, &o3tl::operator-<sal_Int32, Tag_TextFrameIndex>);
}
}
}
@@ -2023,8 +2017,7 @@ void SwTextFrame::SwClientNotify(SwModify const& rModify, SfxHint const& rHint)
lcl_SetWrong( *this, rNode, nNPos, nNLen, false );
lcl_SetScriptInval( *this, nPos );
bSetFieldsDirty = true;
- if (HasFollow())
- lcl_ModifyOfst( this, nPos, nLen );
+ lcl_ModifyOfst(*this, nPos, nLen, &o3tl::operator+<sal_Int32, Tag_TextFrameIndex>);
}
}
else if (pMoveText)
@@ -2082,8 +2075,7 @@ void SwTextFrame::SwClientNotify(SwModify const& rModify, SfxHint const& rHint)
lcl_SetWrong( *this, rNode, nNPos, nNLen, true );
lcl_SetScriptInval( *this, nPos );
bSetFieldsDirty = true;
- if( HasFollow() )
- lcl_ModifyOfst( this, nPos, nLen );
+ lcl_ModifyOfst(*this, nPos, nLen, &o3tl::operator+<sal_Int32, Tag_TextFrameIndex>);
}
break;
case RES_DEL_CHR:
@@ -2104,8 +2096,7 @@ void SwTextFrame::SwClientNotify(SwModify const& rModify, SfxHint const& rHint)
InvalidateRange( SwCharRange(nPos, nLen), -1 );
lcl_SetScriptInval( *this, nPos );
bSetFieldsDirty = bRecalcFootnoteFlag = true;
- if (HasFollow())
- lcl_ModifyOfst(this, nPos, TextFrameIndex(COMPLETE_STRING));
+ lcl_ModifyOfst(*this, nPos, nLen, &o3tl::operator-<sal_Int32, Tag_TextFrameIndex>);
}
}
break;
@@ -2135,8 +2126,7 @@ void SwTextFrame::SwClientNotify(SwModify const& rModify, SfxHint const& rHint)
{
lcl_SetScriptInval( *this, nPos );
bSetFieldsDirty = bRecalcFootnoteFlag = true;
- if (HasFollow())
- lcl_ModifyOfst( this, nPos, nLen );
+ lcl_ModifyOfst(*this, nPos, nLen, &o3tl::operator-<sal_Int32, Tag_TextFrameIndex>);
}
}
break;