/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * 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 . */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include namespace svgio { namespace svgreader { SvgImageNode::SvgImageNode( SvgDocument& rDocument, SvgNode* pParent) : SvgNode(SVGTokenRect, rDocument, pParent), maSvgStyleAttributes(*this), maSvgAspectRatio(), maX(0), maY(0), maWidth(0), maHeight(0), maXLink(), maUrl(), maMimeType(), maData() { } SvgImageNode::~SvgImageNode() { } const SvgStyleAttributes* SvgImageNode::getSvgStyleAttributes() const { return checkForCssStyle("image", maSvgStyleAttributes); } void SvgImageNode::parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent) { // call parent SvgNode::parseAttribute(rTokenName, aSVGToken, aContent); // read style attributes maSvgStyleAttributes.parseStyleAttribute(aSVGToken, aContent, false); // parse own switch(aSVGToken) { case SVGTokenStyle: { readLocalCssStyle(aContent); break; } case SVGTokenPreserveAspectRatio: { maSvgAspectRatio = readSvgAspectRatio(aContent); break; } case SVGTokenTransform: { const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this)); if(!aMatrix.isIdentity()) { setTransform(&aMatrix); } break; } case SVGTokenX: { SvgNumber aNum; if(readSingleNumber(aContent, aNum)) { maX = aNum; } break; } case SVGTokenY: { SvgNumber aNum; if(readSingleNumber(aContent, aNum)) { maY = aNum; } break; } case SVGTokenWidth: { SvgNumber aNum; if(readSingleNumber(aContent, aNum)) { if(aNum.isPositive()) { maWidth = aNum; } } break; } case SVGTokenHeight: { SvgNumber aNum; if(readSingleNumber(aContent, aNum)) { if(aNum.isPositive()) { maHeight = aNum; } } break; } case SVGTokenXlinkHref: { const sal_Int32 nLen(aContent.getLength()); if(nLen) { readImageLink(aContent, maXLink, maUrl, maMimeType, maData); } break; } default: { break; } } } static void extractFromGraphic( const Graphic& rGraphic, drawinglayer::primitive2d::Primitive2DContainer& rEmbedded, basegfx::B2DRange& rViewBox, BitmapEx& rBitmapEx) { if(GraphicType::Bitmap == rGraphic.GetType()) { if(rGraphic.getVectorGraphicData().get()) { // embedded Svg rEmbedded = rGraphic.getVectorGraphicData()->getPrimitive2DSequence(); // fill aViewBox rViewBox = rGraphic.getVectorGraphicData()->getRange(); } else { // get bitmap rBitmapEx = rGraphic.GetBitmapEx(); } } else { // evtl. convert to bitmap rBitmapEx = rGraphic.GetBitmapEx(); } } void SvgImageNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool /*bReferenced*/) const { // get size range and create path const SvgStyleAttributes* pStyle = getSvgStyleAttributes(); if(pStyle && getWidth().isSet() && getHeight().isSet()) { const double fWidth(getWidth().solve(*this, xcoordinate)); const double fHeight(getHeight().solve(*this, ycoordinate)); if(fWidth > 0.0 && fHeight > 0.0) { BitmapEx aBitmapEx; drawinglayer::primitive2d::Primitive2DContainer aNewTarget; // prepare Target and ViewBox for evtl. AspectRatio mappings const double fX(getX().isSet() ? getX().solve(*this, xcoordinate) : 0.0); const double fY(getY().isSet() ? getY().solve(*this, ycoordinate) : 0.0); const basegfx::B2DRange aTarget(fX, fY, fX + fWidth, fY + fHeight); basegfx::B2DRange aViewBox(aTarget); if(!maMimeType.isEmpty() && !maData.isEmpty()) { // use embedded base64 encoded data css::uno::Sequence< sal_Int8 > aPass; ::comphelper::Base64::decode(aPass, maData); if(aPass.hasElements()) { SvMemoryStream aStream(aPass.getArray(), aPass.getLength(), StreamMode::READ); Graphic aGraphic; if(ERRCODE_NONE == GraphicFilter::GetGraphicFilter().ImportGraphic( aGraphic, OUString(), aStream)) { extractFromGraphic(aGraphic, aNewTarget, aViewBox, aBitmapEx); } } } else if(!maUrl.isEmpty()) { const OUString& rPath = getDocument().getAbsolutePath(); OUString aAbsUrl; try { aAbsUrl = rtl::Uri::convertRelToAbs(rPath, maUrl); } catch (rtl::MalformedUriException & e) { SAL_WARN( "svg", "caught rtl::MalformedUriException \"" << e.getMessage() << "\""); } if (!aAbsUrl.isEmpty() && rPath != aAbsUrl) { SvFileStream aStream(aAbsUrl, StreamMode::STD_READ); Graphic aGraphic; if(ERRCODE_NONE == GraphicFilter::GetGraphicFilter().ImportGraphic( aGraphic, aAbsUrl, aStream)) { extractFromGraphic(aGraphic, aNewTarget, aViewBox, aBitmapEx); } } } else if(!maXLink.isEmpty()) { const SvgNode* pXLink = getDocument().findSvgNodeById(maXLink); if(pXLink && Display_none != pXLink->getDisplay()) { pXLink->decomposeSvgNode(aNewTarget, true); if(!aNewTarget.empty()) { aViewBox = aNewTarget.getB2DRange(drawinglayer::geometry::ViewInformation2D()); } } } if(!aBitmapEx.IsEmpty() && 0 != aBitmapEx.GetSizePixel().Width() && 0 != aBitmapEx.GetSizePixel().Height()) { // calculate centered unit size const double fAspectRatio = static_cast(aBitmapEx.GetSizePixel().Width()) / static_cast(aBitmapEx.GetSizePixel().Height()); if(basegfx::fTools::equal(fAspectRatio, 0.0)) { // use unit range aViewBox = basegfx::B2DRange(0.0, 0.0, 1.0, 1.0); } else if(basegfx::fTools::more(fAspectRatio, 0.0)) { // width bigger height const double fHalfHeight((1.0 / fAspectRatio) * 0.5); aViewBox = basegfx::B2DRange( 0.0, 0.5 - fHalfHeight, 1.0, 0.5 + fHalfHeight); } else { // height bigger width const double fHalfWidth(fAspectRatio * 0.5); aViewBox = basegfx::B2DRange( 0.5 - fHalfWidth, 0.0, 0.5 + fHalfWidth, 1.0); } // create content from created bitmap, use calculated unit range size // as transformation to map the picture data correctly aNewTarget.resize(1); aNewTarget[0] = new drawinglayer::primitive2d::BitmapPrimitive2D( aBitmapEx, basegfx::utils::createScaleTranslateB2DHomMatrix( aViewBox.getRange(), aViewBox.getMinimum())); } if(!aNewTarget.empty()) { if(aTarget.equal(aViewBox)) { // just add to rTarget rTarget.append(aNewTarget); } else { // create mapping const SvgAspectRatio& rRatio = maSvgAspectRatio; // even when ratio is not set, use the defaults // let mapping be created from SvgAspectRatio const basegfx::B2DHomMatrix aEmbeddingTransform(rRatio.createMapping(aTarget, aViewBox)); if(!aEmbeddingTransform.isIdentity()) { const drawinglayer::primitive2d::Primitive2DReference xRef( new drawinglayer::primitive2d::TransformPrimitive2D( aEmbeddingTransform, aNewTarget)); aNewTarget = drawinglayer::primitive2d::Primitive2DContainer { xRef }; } if(!rRatio.isMeetOrSlice()) { // need to embed in MaskPrimitive2D to ensure clipping const drawinglayer::primitive2d::Primitive2DReference xMask( new drawinglayer::primitive2d::MaskPrimitive2D( basegfx::B2DPolyPolygon( basegfx::utils::createPolygonFromRect(aTarget)), aNewTarget)); aNewTarget = drawinglayer::primitive2d::Primitive2DContainer { xMask }; } // embed and add to rTarget, take local extra-transform into account pStyle->add_postProcess(rTarget, aNewTarget, getTransform()); } } } } } } // end of namespace svgreader } // end of namespace svgio /* vim:set shiftwidth=4 softtabstop=4 expandtab: */