svgio/source/svgreader/svgvisitor.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  */
  10
  11 #include <sal/config.h>
  12
  13 #include <svgrectnode.hxx>
  14 #include <svgsvgnode.hxx>
  15 #include <svgpathnode.hxx>
  16 #include <svggradientnode.hxx>
  17
  18 #include <svgvisitor.hxx>
  19
  20 namespace svgio::svgreader
  21 {
  22 SvgDrawVisitor::SvgDrawVisitor()
  23     : mpDrawRoot(std::make_shared<gfx::DrawRoot>())
  24     , mpCurrent(mpDrawRoot)
  25 {
  26 }
  27
  28 void SvgDrawVisitor::visit(svgio::svgreader::SvgNode const& rNode)
  29 {
  30     switch (rNode.getType())
  31     {
  32         case svgio::svgreader::SVGToken::Svg:
  33         {
  34             auto const& rSvgNode = static_cast<svgio::svgreader::SvgSvgNode const&>(rNode);
  35
  36             basegfx::B2DRange aRange = rSvgNode.getCurrentViewPort();
  37
  38             static_cast<gfx::DrawRoot*>(mpCurrent.get())->maRectangle = aRange;
  39         }
  40         break;
  41         case svgio::svgreader::SVGToken::Rect:
  42         {
  43             auto const& rRectNode = static_cast<svgio::svgreader::SvgRectNode const&>(rNode);
  44
  45             double x = rRectNode.getX().getNumber();
  46             double y = rRectNode.getY().getNumber();
  47             double w = rRectNode.getWidth().getNumber();
  48             double h = rRectNode.getHeight().getNumber();
  49
  50             auto pRectangle
  51                 = std::make_shared<gfx::DrawRectangle>(basegfx::B2DRange(x, y, x + w, y + h));
  52             pRectangle->mnRx = rRectNode.getRx().getNumber();
  53             pRectangle->mnRy = rRectNode.getRy().getNumber();
  54
  55             pRectangle->mnStrokeWidth
  56                 = rRectNode.getSvgStyleAttributes()->getStrokeWidth().getNumber();
  57
  58             pRectangle->mnOpacity = rRectNode.getSvgStyleAttributes()->getOpacity().getNumber();
  59
  60             const basegfx::BColor* pFillColor = rRectNode.getSvgStyleAttributes()->getFill();
  61             const SvgGradientNode* pFillGradient
  62                 = rRectNode.getSvgStyleAttributes()->getSvgGradientNodeFill();
  63             if (pFillColor)
  64             {
  65                 pRectangle->mpFillColor = std::make_shared<basegfx::BColor>(*pFillColor);
  66             }
  67             else if (pFillGradient)
  68             {
  69                 drawinglayer::primitive2d::SvgGradientEntryVector aSvgGradientEntryVector;
  70                 pFillGradient->collectGradientEntries(aSvgGradientEntryVector);
  71                 if (!aSvgGradientEntryVector.empty())
  72                 {
  73                     auto aGradientInfo = std::make_shared<gfx::LinearGradientInfo>();
  74
  75                     aGradientInfo->x1 = pFillGradient->getX1().getNumber();
  76                     aGradientInfo->y1 = pFillGradient->getY1().getNumber();
  77                     aGradientInfo->x2 = pFillGradient->getX2().getNumber();
  78                     aGradientInfo->y2 = pFillGradient->getY2().getNumber();
  79
  80                     const basegfx::B2DHomMatrix* pGradientTransform
  81                         = pFillGradient->getGradientTransform();
  82                     if (pGradientTransform)
  83                     {
  84                         aGradientInfo->maMatrix = *pGradientTransform;
  85                     }
  86
  87                     pRectangle->mpFillGradient = aGradientInfo;
  88
  89                     for (auto const& rEntry : aSvgGradientEntryVector)
  90                     {
  91                         gfx::GradientStop aStop;
  92                         aStop.maColor = rEntry.getColor();
  93                         aStop.mfOffset = rEntry.getOffset();
  94                         aStop.mfOpacity = rEntry.getOpacity();
  95                         pRectangle->mpFillGradient->maGradientStops.push_back(aStop);
  96                     }
  97                 }
  98             }
  99
 100             const basegfx::BColor* pStrokeColor = rRectNode.getSvgStyleAttributes()->getStroke();
 101             if (pStrokeColor)
 102                 pRectangle->mpStrokeColor = std::make_shared<basegfx::BColor>(*pStrokeColor);
 103
 104             mpCurrent->maChildren.push_back(pRectangle);
 105         }
 106         break;
 107         case svgio::svgreader::SVGToken::Path:
 108         {
 109             auto const& rPathNode = static_cast<svgio::svgreader::SvgPathNode const&>(rNode);
 110
 111             auto pPath = rPathNode.getPath();
 112             if (pPath)
 113             {
 114                 auto pDrawPath = std::make_shared<gfx::DrawPath>(*pPath);
 115
 116                 pDrawPath->mnStrokeWidth
 117                     = rPathNode.getSvgStyleAttributes()->getStrokeWidth().getNumber();
 118
 119                 pDrawPath->mnOpacity = rPathNode.getSvgStyleAttributes()->getOpacity().getNumber();
 120
 121                 const basegfx::BColor* pFillColor = rPathNode.getSvgStyleAttributes()->getFill();
 122                 if (pFillColor)
 123                     pDrawPath->mpFillColor = std::make_shared<basegfx::BColor>(*pFillColor);
 124
 125                 const basegfx::BColor* pStrokeColor
 126                     = rPathNode.getSvgStyleAttributes()->getStroke();
 127                 if (pStrokeColor)
 128                     pDrawPath->mpStrokeColor = std::make_shared<basegfx::BColor>(*pStrokeColor);
 129
 130                 mpCurrent->maChildren.push_back(pDrawPath);
 131             }
 132         }
 133         break;
 134
 135         default:
 136             break;
 137     }
 138     goToChildren(rNode);
 139 }
 140
 141 void SvgDrawVisitor::goToChildren(svgio::svgreader::SvgNode const& rNode)
 142 {
 143     for (auto& rChild : rNode.getChildren())
 144     {
 145         rChild->accept(*this);
 146     }
 147 }
 148 } // end of namespace svgio::svgreader
 149
 150 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */