diff options
author | Caolán McNamara <caolanm@redhat.com> | 2015-07-15 10:09:16 +0100 |
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committer | Michael Meeks <michael.meeks@collabora.com> | 2015-07-16 09:09:49 +0000 |
commit | f794f6501bcf18e5430d57128699fc579251f900 (patch) | |
tree | 0865faca01eae0e368b9cd3a8d8cd69724399250 | |
parent | 03e115e51e5102ffd9c8498f865ed9e768f4f490 (diff) |
Resolves: tdf#63955 clip 19km long line to some sane limit
Change-Id: If9757a5fa2bb93b56b9cf9f566972f687a4a3a45
Reviewed-on: https://gerrit.libreoffice.org/17036
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
(cherry picked from commit d1046e7c3f66e5f3384ee1ef534ef28346702fc6)
refactor ensuring polygon has at least a line in it
just split that out into a standalone function, no logic
change
Change-Id: I061d5d716b3fc2a9fb6385e7fb249ce300752130
(cherry picked from commit 83b3349bb94d4c48db4da8fe5f8fdb9b19e633b9)
Reviewed-on: https://gerrit.libreoffice.org/17074
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>
Tested-by: Michael Meeks <michael.meeks@collabora.com>
-rw-r--r-- | svx/source/sdr/contact/viewcontactofsdrpathobj.cxx | 71 |
1 files changed, 53 insertions, 18 deletions
diff --git a/svx/source/sdr/contact/viewcontactofsdrpathobj.cxx b/svx/source/sdr/contact/viewcontactofsdrpathobj.cxx index 7004342133c3..c44c6a25ab5a 100644 --- a/svx/source/sdr/contact/viewcontactofsdrpathobj.cxx +++ b/svx/source/sdr/contact/viewcontactofsdrpathobj.cxx @@ -20,13 +20,14 @@ #include <sdr/contact/viewcontactofsdrpathobj.hxx> #include <svx/svdopath.hxx> +#include <svx/svdpage.hxx> #include <svx/sdr/primitive2d/sdrattributecreator.hxx> #include <basegfx/polygon/b2dpolypolygontools.hxx> +#include <basegfx/polygon/b2dpolygonclipper.hxx> #include <sdr/primitive2d/sdrpathprimitive2d.hxx> #include <basegfx/matrix/b2dhommatrixtools.hxx> - namespace sdr { namespace contact @@ -40,26 +41,14 @@ namespace sdr { } - drawinglayer::primitive2d::Primitive2DSequence ViewContactOfSdrPathObj::createViewIndependentPrimitive2DSequence() const + static sal_uInt32 ensureGeometry(basegfx::B2DPolyPolygon& rUnitPolyPolygon) { - const SfxItemSet& rItemSet = GetPathObj().GetMergedItemSet(); - const drawinglayer::attribute::SdrLineFillShadowTextAttribute aAttribute( - drawinglayer::primitive2d::createNewSdrLineFillShadowTextAttribute( - rItemSet, - GetPathObj().getText(0), - false)); - basegfx::B2DPolyPolygon aUnitPolyPolygon(GetPathObj().GetPathPoly()); - Point aGridOff = GetPathObj().GetGridOffset(); - // Hack for calc, transform position of object according - // to current zoom so as objects relative position to grid - // appears stable - aUnitPolyPolygon.transform( basegfx::tools::createTranslateB2DHomMatrix( aGridOff.X(), aGridOff.Y() ) ); - sal_uInt32 nPolyCount(aUnitPolyPolygon.count()); + sal_uInt32 nPolyCount(rUnitPolyPolygon.count()); sal_uInt32 nPointCount(0); for(sal_uInt32 a(0); a < nPolyCount; a++) { - nPointCount += aUnitPolyPolygon.getB2DPolygon(a).count(); + nPointCount += rUnitPolyPolygon.getB2DPolygon(a).count(); } if(!nPointCount) @@ -68,20 +57,66 @@ namespace sdr basegfx::B2DPolygon aFallbackLine; aFallbackLine.append(basegfx::B2DPoint(0.0, 0.0)); aFallbackLine.append(basegfx::B2DPoint(1000.0, 1000.0)); - aUnitPolyPolygon = basegfx::B2DPolyPolygon(aFallbackLine); + rUnitPolyPolygon = basegfx::B2DPolyPolygon(aFallbackLine); nPolyCount = 1; } + return nPolyCount; + } + + drawinglayer::primitive2d::Primitive2DSequence ViewContactOfSdrPathObj::createViewIndependentPrimitive2DSequence() const + { + const SfxItemSet& rItemSet = GetPathObj().GetMergedItemSet(); + const drawinglayer::attribute::SdrLineFillShadowTextAttribute aAttribute( + drawinglayer::primitive2d::createNewSdrLineFillShadowTextAttribute( + rItemSet, + GetPathObj().getText(0), + false)); + basegfx::B2DPolyPolygon aUnitPolyPolygon(GetPathObj().GetPathPoly()); + Point aGridOff = GetPathObj().GetGridOffset(); + // Hack for calc, transform position of object according + // to current zoom so as objects relative position to grid + // appears stable + aUnitPolyPolygon.transform( basegfx::tools::createTranslateB2DHomMatrix( aGridOff.X(), aGridOff.Y() ) ); + sal_uInt32 nPolyCount(ensureGeometry(aUnitPolyPolygon)); + // prepare object transformation and unit polygon (direct model data) basegfx::B2DHomMatrix aObjectMatrix; - const bool bIsLine( + bool bIsLine( !aUnitPolyPolygon.areControlPointsUsed() && 1 == nPolyCount && 2 == aUnitPolyPolygon.getB2DPolygon(0).count()); if(bIsLine) { + const SdrPage* pPage = GetPathObj().GetPage(); + if (pPage) + { + //tdf#63955 if we have an extremely long line then clip it + //to a very generous range of -1 page width/height vs +1 + //page width/height to avoid oom and massive churn + //generating a huge polygon chain to cover the length in + //applyLineDashing if this line is dashed + double fPageWidth = pPage->GetWdt(); + double fPageHeight = pPage->GetHgt(); + basegfx::B2DRange aClipRange(-fPageWidth, -fPageHeight, + fPageWidth*2, fPageHeight*2); + aUnitPolyPolygon = basegfx::tools::clipPolyPolygonOnRange(aUnitPolyPolygon, + aClipRange, true, true); + nPolyCount = ensureGeometry(aUnitPolyPolygon); + + // re-check that we have't been clipped out to oblivion + bIsLine = + !aUnitPolyPolygon.areControlPointsUsed() + && 1 == nPolyCount + && 2 == aUnitPolyPolygon.getB2DPolygon(0).count(); + } + } + + if(bIsLine) + { + // special handling for single line mode (2 points) const basegfx::B2DPolygon aSubPolygon(aUnitPolyPolygon.getB2DPolygon(0)); const basegfx::B2DPoint aStart(aSubPolygon.getB2DPoint(0)); |