diff options
Diffstat (limited to 'svgio/source/svgreader/svgclippathnode.cxx')
| -rw-r--r-- | svgio/source/svgreader/svgclippathnode.cxx | 230 |
1 files changed, 115 insertions, 115 deletions
diff --git a/svgio/source/svgreader/svgclippathnode.cxx b/svgio/source/svgreader/svgclippathnode.cxx index bda50ab3777f..090a795da3ac 100644 --- a/svgio/source/svgreader/svgclippathnode.cxx +++ b/svgio/source/svgreader/svgclippathnode.cxx @@ -103,23 +103,23 @@ namespace svgio // decompose children SvgNode::decomposeSvgNode(aNewTarget, bReferenced); - if(!aNewTarget.empty()) + if(aNewTarget.empty()) + return; + + if(getTransform()) { - if(getTransform()) - { - // create embedding group element with transformation - const drawinglayer::primitive2d::Primitive2DReference xRef( - new drawinglayer::primitive2d::TransformPrimitive2D( - *getTransform(), - aNewTarget)); + // create embedding group element with transformation + const drawinglayer::primitive2d::Primitive2DReference xRef( + new drawinglayer::primitive2d::TransformPrimitive2D( + *getTransform(), + aNewTarget)); - rTarget.push_back(xRef); - } - else - { - // append to current target - rTarget.append(aNewTarget); - } + rTarget.push_back(xRef); + } + else + { + // append to current target + rTarget.append(aNewTarget); } } @@ -127,132 +127,132 @@ namespace svgio drawinglayer::primitive2d::Primitive2DContainer& rContent, const basegfx::B2DHomMatrix* pTransform) const { - if(!rContent.empty() && Display_none != getDisplay()) - { - const drawinglayer::geometry::ViewInformation2D aViewInformation2D; - drawinglayer::primitive2d::Primitive2DContainer aClipTarget; - basegfx::B2DPolyPolygon aClipPolyPolygon; + if(!(!rContent.empty() && Display_none != getDisplay())) + return; - // get clipPath definition as primitives - decomposeSvgNode(aClipTarget, true); + const drawinglayer::geometry::ViewInformation2D aViewInformation2D; + drawinglayer::primitive2d::Primitive2DContainer aClipTarget; + basegfx::B2DPolyPolygon aClipPolyPolygon; - if(!aClipTarget.empty()) - { - // extract filled polygons as base for a mask PolyPolygon - drawinglayer::processor2d::ContourExtractor2D aExtractor(aViewInformation2D, true); + // get clipPath definition as primitives + decomposeSvgNode(aClipTarget, true); - aExtractor.process(aClipTarget); + if(!aClipTarget.empty()) + { + // extract filled polygons as base for a mask PolyPolygon + drawinglayer::processor2d::ContourExtractor2D aExtractor(aViewInformation2D, true); - const basegfx::B2DPolyPolygonVector& rResult(aExtractor.getExtractedContour()); - const sal_uInt32 nSize(rResult.size()); + aExtractor.process(aClipTarget); - if(nSize > 1) - { - // merge to single clipPolyPolygon - aClipPolyPolygon = basegfx::utils::mergeToSinglePolyPolygon(rResult); - } - else - { - aClipPolyPolygon = rResult[0]; - } + const basegfx::B2DPolyPolygonVector& rResult(aExtractor.getExtractedContour()); + const sal_uInt32 nSize(rResult.size()); + + if(nSize > 1) + { + // merge to single clipPolyPolygon + aClipPolyPolygon = basegfx::utils::mergeToSinglePolyPolygon(rResult); + } + else + { + aClipPolyPolygon = rResult[0]; } + } - if(aClipPolyPolygon.count()) + if(aClipPolyPolygon.count()) + { + if(objectBoundingBox == getClipPathUnits()) { - if(objectBoundingBox == getClipPathUnits()) - { - // clip is object-relative, transform using content transformation - const basegfx::B2DRange aContentRange(rContent.getB2DRange(aViewInformation2D)); + // clip is object-relative, transform using content transformation + const basegfx::B2DRange aContentRange(rContent.getB2DRange(aViewInformation2D)); - aClipPolyPolygon.transform( - basegfx::utils::createScaleTranslateB2DHomMatrix( - aContentRange.getRange(), - aContentRange.getMinimum())); - } - else // userSpaceOnUse + aClipPolyPolygon.transform( + basegfx::utils::createScaleTranslateB2DHomMatrix( + aContentRange.getRange(), + aContentRange.getMinimum())); + } + else // userSpaceOnUse + { + // #i124852# + if(pTransform) { - // #i124852# - if(pTransform) - { - aClipPolyPolygon.transform(*pTransform); - } + aClipPolyPolygon.transform(*pTransform); } + } - // #i124313# try to avoid creating an embedding to a MaskPrimitive2D if - // possible; MaskPrimitive2D processing is potentially expensive - bool bCreateEmbedding(true); - bool bAddContent(true); - - if(basegfx::utils::isRectangle(aClipPolyPolygon)) - { - // ClipRegion is a rectangle, thus it is not expensive to tell - // if the content is completely inside or outside of it; get ranges - const basegfx::B2DRange aClipRange(aClipPolyPolygon.getB2DRange()); - const basegfx::B2DRange aContentRange( - rContent.getB2DRange( - aViewInformation2D)); + // #i124313# try to avoid creating an embedding to a MaskPrimitive2D if + // possible; MaskPrimitive2D processing is potentially expensive + bool bCreateEmbedding(true); + bool bAddContent(true); - if(aClipRange.isInside(aContentRange)) - { - // completely contained, no need to clip at all, so no need for embedding - bCreateEmbedding = false; - } - else if(aClipRange.overlaps(aContentRange)) - { - // overlap; embedding needed. ClipRegion can be minimized by using - // the intersection of the ClipRange and the ContentRange. Minimizing - // the ClipRegion potentially enhances further processing since - // usually clip operations are expensive. - basegfx::B2DRange aCommonRange(aContentRange); + if(basegfx::utils::isRectangle(aClipPolyPolygon)) + { + // ClipRegion is a rectangle, thus it is not expensive to tell + // if the content is completely inside or outside of it; get ranges + const basegfx::B2DRange aClipRange(aClipPolyPolygon.getB2DRange()); + const basegfx::B2DRange aContentRange( + rContent.getB2DRange( + aViewInformation2D)); - aCommonRange.intersect(aClipRange); - aClipPolyPolygon = basegfx::B2DPolyPolygon(basegfx::utils::createPolygonFromRect(aCommonRange)); - } - else - { - // not inside and no overlap -> completely outside - // no need for embedding, no need for content at all - bCreateEmbedding = false; - bAddContent = false; - } - } - else + if(aClipRange.isInside(aContentRange)) { - // ClipRegion is not a simple rectangle, it would be possible but expensive to - // tell if the content needs clipping or not. It is also dependent of - // the content's decomposition. To do this, a processor would be needed that - // is capable if processing the given sequence of primitives and decide - // if all is inside or all is outside. Such a ClipProcessor could be written, - // but for now just create the embedding + // completely contained, no need to clip at all, so no need for embedding + bCreateEmbedding = false; } - - if(bCreateEmbedding) + else if(aClipRange.overlaps(aContentRange)) { - // redefine target. Use MaskPrimitive2D with created clip - // geometry. Using the automatically set mbIsClipPathContent at - // SvgStyleAttributes the clip definition is without fill, stroke, - // and strokeWidth and forced to black - const drawinglayer::primitive2d::Primitive2DReference xEmbedTransparence( - new drawinglayer::primitive2d::MaskPrimitive2D( - aClipPolyPolygon, - rContent)); + // overlap; embedding needed. ClipRegion can be minimized by using + // the intersection of the ClipRange and the ContentRange. Minimizing + // the ClipRegion potentially enhances further processing since + // usually clip operations are expensive. + basegfx::B2DRange aCommonRange(aContentRange); - rContent = drawinglayer::primitive2d::Primitive2DContainer { xEmbedTransparence }; + aCommonRange.intersect(aClipRange); + aClipPolyPolygon = basegfx::B2DPolyPolygon(basegfx::utils::createPolygonFromRect(aCommonRange)); } else { - if(!bAddContent) - { - rContent.clear(); - } + // not inside and no overlap -> completely outside + // no need for embedding, no need for content at all + bCreateEmbedding = false; + bAddContent = false; } } else { - // An empty clipping path will completely clip away the element that had - // the clip-path property applied. (Svg spec) - rContent.clear(); + // ClipRegion is not a simple rectangle, it would be possible but expensive to + // tell if the content needs clipping or not. It is also dependent of + // the content's decomposition. To do this, a processor would be needed that + // is capable if processing the given sequence of primitives and decide + // if all is inside or all is outside. Such a ClipProcessor could be written, + // but for now just create the embedding } + + if(bCreateEmbedding) + { + // redefine target. Use MaskPrimitive2D with created clip + // geometry. Using the automatically set mbIsClipPathContent at + // SvgStyleAttributes the clip definition is without fill, stroke, + // and strokeWidth and forced to black + const drawinglayer::primitive2d::Primitive2DReference xEmbedTransparence( + new drawinglayer::primitive2d::MaskPrimitive2D( + aClipPolyPolygon, + rContent)); + + rContent = drawinglayer::primitive2d::Primitive2DContainer { xEmbedTransparence }; + } + else + { + if(!bAddContent) + { + rContent.clear(); + } + } + } + else + { + // An empty clipping path will completely clip away the element that had + // the clip-path property applied. (Svg spec) + rContent.clear(); } } |