svgio/source/svgreader/svggnode.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <svggnode.hxx>
  21 #include <osl/diagnose.h>
  22
  23 namespace svgio::svgreader
  24 {
  25         SvgGNode::SvgGNode(
  26             SVGToken aType,
  27             SvgDocument& rDocument,
  28             SvgNode* pParent)
  29         :   SvgNode(aType, rDocument, pParent),
  30             maSvgStyleAttributes(*this)
  31         {
  32             OSL_ENSURE(aType == SVGToken::Defs || aType == SVGToken::G, "SvgGNode should only be used for Group and Defs (!)");
  33         }
  34
  35         SvgGNode::~SvgGNode()
  36         {
  37         }
  38
  39         const SvgStyleAttributes* SvgGNode::getSvgStyleAttributes() const
  40         {
  41             if (SVGToken::Defs == getType())
  42             {
  43                 // tdf#98599 attributes may be inherit by the children, therefore read them
  44                 return checkForCssStyle("defs", maSvgStyleAttributes);
  45             }
  46             else
  47             {
  48                 // #i125258# for SVGToken::G take CssStyles into account
  49                 return checkForCssStyle("g", maSvgStyleAttributes);
  50             }
  51         }
  52
  53         void SvgGNode::parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent)
  54         {
  55             // call parent
  56             SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
  57
  58             // read style attributes
  59             maSvgStyleAttributes.parseStyleAttribute(aSVGToken, aContent);
  60
  61             // parse own
  62             switch(aSVGToken)
  63             {
  64                 case SVGToken::Style:
  65                 {
  66                     readLocalCssStyle(aContent);
  67                     break;
  68                 }
  69                 case SVGToken::Transform:
  70                 {
  71                     const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
  72
  73                     if(!aMatrix.isIdentity())
  74                     {
  75                         setTransform(aMatrix);
  76                     }
  77                     break;
  78                 }
  79                 default:
  80                 {
  81                     break;
  82                 }
  83             }
  84         }
  85
  86         void SvgGNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool bReferenced) const
  87         {
  88             if(SVGToken::Defs == getType())
  89             {
  90                 // #i125258# no decompose needed for defs element, call parent for SVGTokenDefs
  91                 SvgNode::decomposeSvgNode(rTarget, bReferenced);
  92             }
  93             else
  94             {
  95                 // #i125258# for SVGTokenG decompose children
  96                 const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
  97
  98                 if(pStyle)
  99                 {
 100                     const double fOpacity(pStyle->getOpacity().getNumber());
 101
 102                     if(fOpacity > 0.0 && Display::None != getDisplay())
 103                     {
 104                         drawinglayer::primitive2d::Primitive2DContainer aContent;
 105
 106                         // decompose children
 107                         SvgNode::decomposeSvgNode(aContent, bReferenced);
 108
 109                         if(!aContent.empty())
 110                         {
 111                             pStyle->add_postProcess(rTarget, std::move(aContent), getTransform());
 112                         }
 113                     }
 114                 }
 115             }
 116         }
 117 } // end of namespace svgio::svgreader
 118
 119 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */