| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_svgio.hxx" |
| |
| #include <svgio/svgreader/svgmasknode.hxx> |
| #include <drawinglayer/primitive2d/transformprimitive2d.hxx> |
| #include <drawinglayer/primitive2d/transparenceprimitive2d.hxx> |
| #include <basegfx/matrix/b2dhommatrixtools.hxx> |
| #include <drawinglayer/geometry/viewinformation2d.hxx> |
| #include <drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx> |
| #include <drawinglayer/primitive2d/maskprimitive2d.hxx> |
| #include <basegfx/polygon/b2dpolygontools.hxx> |
| #include <basegfx/polygon/b2dpolygon.hxx> |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| namespace svgio |
| { |
| namespace svgreader |
| { |
| SvgMaskNode::SvgMaskNode( |
| SvgDocument& rDocument, |
| SvgNode* pParent) |
| : SvgNode(SVGTokenMask, rDocument, pParent), |
| maSvgStyleAttributes(*this), |
| maX(SvgNumber(-10.0, Unit_percent, true)), |
| maY(SvgNumber(-10.0, Unit_percent, true)), |
| maWidth(SvgNumber(120.0, Unit_percent, true)), |
| maHeight(SvgNumber(120.0, Unit_percent, true)), |
| mpaTransform(0), |
| maMaskUnits(objectBoundingBox), |
| maMaskContentUnits(userSpaceOnUse) |
| { |
| } |
| |
| SvgMaskNode::~SvgMaskNode() |
| { |
| if(mpaTransform) delete mpaTransform; |
| } |
| |
| const SvgStyleAttributes* SvgMaskNode::getSvgStyleAttributes() const |
| { |
| return &maSvgStyleAttributes; |
| } |
| |
| void SvgMaskNode::parseAttribute(const rtl::OUString& rTokenName, SVGToken aSVGToken, const rtl::OUString& aContent) |
| { |
| // call parent |
| SvgNode::parseAttribute(rTokenName, aSVGToken, aContent); |
| |
| // read style attributes |
| maSvgStyleAttributes.parseStyleAttribute(rTokenName, aSVGToken, aContent); |
| |
| // parse own |
| switch(aSVGToken) |
| { |
| case SVGTokenStyle: |
| { |
| maSvgStyleAttributes.readStyle(aContent); |
| break; |
| } |
| case SVGTokenX: |
| { |
| SvgNumber aNum; |
| |
| if(readSingleNumber(aContent, aNum)) |
| { |
| setX(aNum); |
| } |
| break; |
| } |
| case SVGTokenY: |
| { |
| SvgNumber aNum; |
| |
| if(readSingleNumber(aContent, aNum)) |
| { |
| setY(aNum); |
| } |
| break; |
| } |
| case SVGTokenWidth: |
| { |
| SvgNumber aNum; |
| |
| if(readSingleNumber(aContent, aNum)) |
| { |
| if(aNum.isPositive()) |
| { |
| setWidth(aNum); |
| } |
| } |
| break; |
| } |
| case SVGTokenHeight: |
| { |
| SvgNumber aNum; |
| |
| if(readSingleNumber(aContent, aNum)) |
| { |
| if(aNum.isPositive()) |
| { |
| setHeight(aNum); |
| } |
| } |
| break; |
| } |
| case SVGTokenTransform: |
| { |
| const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this)); |
| |
| if(!aMatrix.isIdentity()) |
| { |
| setTransform(&aMatrix); |
| } |
| break; |
| } |
| case SVGTokenMaskUnits: |
| { |
| if(aContent.getLength()) |
| { |
| if(aContent.match(commonStrings::aStrUserSpaceOnUse, 0)) |
| { |
| setMaskUnits(userSpaceOnUse); |
| } |
| else if(aContent.match(commonStrings::aStrObjectBoundingBox, 0)) |
| { |
| setMaskUnits(objectBoundingBox); |
| } |
| } |
| break; |
| } |
| case SVGTokenMaskContentUnits: |
| { |
| if(aContent.getLength()) |
| { |
| if(aContent.match(commonStrings::aStrUserSpaceOnUse, 0)) |
| { |
| setMaskContentUnits(userSpaceOnUse); |
| } |
| else if(aContent.match(commonStrings::aStrObjectBoundingBox, 0)) |
| { |
| setMaskContentUnits(objectBoundingBox); |
| } |
| } |
| break; |
| } |
| default: |
| { |
| break; |
| } |
| } |
| } |
| |
| void SvgMaskNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DSequence& rTarget, bool bReferenced) const |
| { |
| drawinglayer::primitive2d::Primitive2DSequence aNewTarget; |
| |
| // decompose childs |
| SvgNode::decomposeSvgNode(aNewTarget, bReferenced); |
| |
| if(aNewTarget.hasElements()) |
| { |
| if(getTransform()) |
| { |
| // create embedding group element with transformation |
| const drawinglayer::primitive2d::Primitive2DReference xRef( |
| new drawinglayer::primitive2d::TransformPrimitive2D( |
| *getTransform(), |
| aNewTarget)); |
| |
| aNewTarget = drawinglayer::primitive2d::Primitive2DSequence(&xRef, 1); |
| } |
| |
| // append to current target |
| drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(rTarget, aNewTarget); |
| } |
| } |
| |
| void SvgMaskNode::apply( |
| drawinglayer::primitive2d::Primitive2DSequence& rTarget, |
| const basegfx::B2DHomMatrix* pTransform) const |
| { |
| if(rTarget.hasElements() && Display_none != getDisplay()) |
| { |
| drawinglayer::primitive2d::Primitive2DSequence aMaskTarget; |
| |
| // get mask definition as primitives |
| decomposeSvgNode(aMaskTarget, true); |
| |
| if(aMaskTarget.hasElements()) |
| { |
| // get range of content to be masked |
| const basegfx::B2DRange aContentRange( |
| drawinglayer::primitive2d::getB2DRangeFromPrimitive2DSequence( |
| rTarget, |
| drawinglayer::geometry::ViewInformation2D())); |
| const double fContentWidth(aContentRange.getWidth()); |
| const double fContentHeight(aContentRange.getHeight()); |
| |
| if(fContentWidth > 0.0 && fContentHeight > 0.0) |
| { |
| // create OffscreenBufferRange |
| basegfx::B2DRange aOffscreenBufferRange; |
| |
| if(objectBoundingBox == getMaskUnits()) |
| { |
| // fractions or percentages of the bounding box of the element to which the mask is applied |
| const double fX(Unit_percent == getX().getUnit() ? getX().getNumber() * 0.01 : getX().getNumber()); |
| const double fY(Unit_percent == getY().getUnit() ? getY().getNumber() * 0.01 : getY().getNumber()); |
| const double fW(Unit_percent == getWidth().getUnit() ? getWidth().getNumber() * 0.01 : getWidth().getNumber()); |
| const double fH(Unit_percent == getHeight().getUnit() ? getHeight().getNumber() * 0.01 : getHeight().getNumber()); |
| |
| aOffscreenBufferRange = basegfx::B2DRange( |
| aContentRange.getMinX() + (fX * fContentWidth), |
| aContentRange.getMinY() + (fY * fContentHeight), |
| aContentRange.getMinX() + ((fX + fW) * fContentWidth), |
| aContentRange.getMinY() + ((fY + fH) * fContentHeight)); |
| } |
| else |
| { |
| const double fX(getX().isSet() ? getX().solve(*this, xcoordinate) : 0.0); |
| const double fY(getY().isSet() ? getY().solve(*this, ycoordinate) : 0.0); |
| |
| aOffscreenBufferRange = basegfx::B2DRange( |
| fX, |
| fY, |
| fX + (getWidth().isSet() ? getWidth().solve(*this, xcoordinate) : 0.0), |
| fY + (getHeight().isSet() ? getHeight().solve(*this, ycoordinate) : 0.0)); |
| } |
| |
| if(objectBoundingBox == getMaskContentUnits()) |
| { |
| // mask is object-relative, embed in content transformation |
| const drawinglayer::primitive2d::Primitive2DReference xTransform( |
| new drawinglayer::primitive2d::TransformPrimitive2D( |
| basegfx::tools::createScaleTranslateB2DHomMatrix( |
| aContentRange.getRange(), |
| aContentRange.getMinimum()), |
| aMaskTarget)); |
| |
| aMaskTarget = drawinglayer::primitive2d::Primitive2DSequence(&xTransform, 1); |
| } |
| else // userSpaceOnUse |
| { |
| // #i124852# |
| if(pTransform) |
| { |
| const drawinglayer::primitive2d::Primitive2DReference xTransform( |
| new drawinglayer::primitive2d::TransformPrimitive2D( |
| *pTransform, |
| aMaskTarget)); |
| |
| aMaskTarget = drawinglayer::primitive2d::Primitive2DSequence(&xTransform, 1); |
| } |
| } |
| |
| // embed content to a ModifiedColorPrimitive2D since the definitions |
| // how content is used as alpha is special for Svg |
| { |
| const drawinglayer::primitive2d::Primitive2DReference xInverseMask( |
| new drawinglayer::primitive2d::ModifiedColorPrimitive2D( |
| aMaskTarget, |
| basegfx::BColorModifierSharedPtr( |
| new basegfx::BColorModifier_luminance_to_alpha()))); |
| |
| aMaskTarget = drawinglayer::primitive2d::Primitive2DSequence(&xInverseMask, 1); |
| } |
| |
| // prepare new content |
| drawinglayer::primitive2d::Primitive2DReference xNewContent( |
| new drawinglayer::primitive2d::TransparencePrimitive2D( |
| rTarget, |
| aMaskTarget)); |
| |
| // output up to now is defined by aContentRange and mask is oriented |
| // relative to it. It is possible that aOffscreenBufferRange defines |
| // a smaller area. In that case, embed to a mask primitive |
| if(!aOffscreenBufferRange.isInside(aContentRange)) |
| { |
| xNewContent = new drawinglayer::primitive2d::MaskPrimitive2D( |
| basegfx::B2DPolyPolygon( |
| basegfx::tools::createPolygonFromRect( |
| aOffscreenBufferRange)), |
| drawinglayer::primitive2d::Primitive2DSequence(&xNewContent, 1)); |
| } |
| |
| // redefine target. Use TransparencePrimitive2D with created mask |
| // geometry |
| rTarget = drawinglayer::primitive2d::Primitive2DSequence(&xNewContent, 1); |
| } |
| else |
| { |
| // content is geometrically empty |
| rTarget.realloc(0); |
| } |
| } |
| else |
| { |
| // An empty clipping path will completely clip away the element that had |
| // the clip-path property applied. (Svg spec) |
| rTarget.realloc(0); |
| } |
| } |
| } |
| |
| } // end of namespace svgreader |
| } // end of namespace svgio |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // eof |
