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52 lines
1.9 KiB
52 lines
1.9 KiB
From 3ef19ef7c5de8db17c693e2db286f79efbd98d8d Mon Sep 17 00:00:00 2001
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From: Michael Stahl <mstahl@redhat.com>
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Date: Fri, 7 Mar 2014 15:56:37 +0100
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Subject: [PATCH] rhbz#1043551: sw: avoid division-by-0 in Text Grid painting
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code
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Possible to trigger with a document containing:
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style:layout-grid-base-height="0cm"
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(cherry picked from commit 71b55cf57460aec3fec948676251448934ba31d1)
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got to love the sal_Int32 as long/int
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(cherry picked from commit 18c89ae6ff01f3d555a7cb030eb4572d504e8de7)
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Change-Id: Id3bd1f29157b39e8a577be0b87b86236dbe5a50c
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---
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sw/source/core/layout/atrfrm.cxx | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/sw/source/core/layout/atrfrm.cxx b/sw/source/core/layout/atrfrm.cxx
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index b06cea4..3c40518 100644
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--- a/sw/source/core/layout/atrfrm.cxx
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+++ b/sw/source/core/layout/atrfrm.cxx
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@@ -2262,12 +2262,24 @@ bool SwTextGridItem::PutValue( const uno::Any& rVal, sal_uInt8 nMemberId )
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bRet = (rVal >>= nTmp);
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nTmp = MM100_TO_TWIP( nTmp );
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if( bRet && (nTmp >= 0) && ( nTmp <= USHRT_MAX) )
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+ {
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+ // rhbz#1043551 round up to 5pt -- 0 causes divide-by-zero
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+ // in layout; 1pt ties the painting code up in knots for
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+ // minutes with bazillion lines...
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+#define MIN_TEXTGRID_SIZE 100
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if( (nMemberId & ~CONVERT_TWIPS) == MID_GRID_BASEHEIGHT )
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+ {
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+ nTmp = std::max<sal_Int32>(nTmp, MIN_TEXTGRID_SIZE);
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SetBaseHeight( (sal_uInt16)nTmp );
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+ }
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else if( (nMemberId & ~CONVERT_TWIPS) == MID_GRID_BASEWIDTH )
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+ {
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+ nTmp = std::max<sal_Int32>(nTmp, MIN_TEXTGRID_SIZE);
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SetBaseWidth( (sal_uInt16)nTmp );
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+ }
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else
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SetRubyHeight( (sal_uInt16)nTmp );
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+ }
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else
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bRet = false;
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}
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--
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1.8.3.1
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