svgio/source/svgreader/svgcirclenode.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 <svgcirclenode.hxx>
  21 #include <basegfx/polygon/b2dpolygon.hxx>
  22 #include <basegfx/polygon/b2dpolygontools.hxx>
  23 #include <basegfx/polygon/b2dpolypolygon.hxx>
  24
  25 namespace svgio::svgreader
  26 {
  27         SvgCircleNode::SvgCircleNode(
  28             SvgDocument& rDocument,
  29             SvgNode* pParent)
  30         :   SvgNode(SVGToken::Circle, rDocument, pParent),
  31             maSvgStyleAttributes(*this),
  32             maCx(0),
  33             maCy(0),
  34             maR(0)
  35         {
  36         }
  37
  38         SvgCircleNode::~SvgCircleNode()
  39         {
  40         }
  41
  42         const SvgStyleAttributes* SvgCircleNode::getSvgStyleAttributes() const
  43         {
  44             return checkForCssStyle("circle", maSvgStyleAttributes);
  45         }
  46
  47         void SvgCircleNode::parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent)
  48         {
  49             // call parent
  50             SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
  51
  52             // read style attributes
  53             maSvgStyleAttributes.parseStyleAttribute(aSVGToken, aContent);
  54
  55             // parse own
  56             switch(aSVGToken)
  57             {
  58                 case SVGToken::Style:
  59                 {
  60                     readLocalCssStyle(aContent);
  61                     break;
  62                 }
  63                 case SVGToken::Cx:
  64                 {
  65                     SvgNumber aNum;
  66
  67                     if(readSingleNumber(aContent, aNum))
  68                     {
  69                         maCx = aNum;
  70                     }
  71                     break;
  72                 }
  73                 case SVGToken::Cy:
  74                 {
  75                     SvgNumber aNum;
  76
  77                     if(readSingleNumber(aContent, aNum))
  78                     {
  79                         maCy = aNum;
  80                     }
  81                     break;
  82                 }
  83                 case SVGToken::R:
  84                 {
  85                     SvgNumber aNum;
  86
  87                     if(readSingleNumber(aContent, aNum))
  88                     {
  89                         if(aNum.isPositive())
  90                         {
  91                             maR = aNum;
  92                         }
  93                     }
  94                     break;
  95                 }
  96                 case SVGToken::Transform:
  97                 {
  98                     const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
  99
 100                     if(!aMatrix.isIdentity())
 101                     {
 102                         setTransform(aMatrix);
 103                     }
 104                     break;
 105                 }
 106                 default:
 107                 {
 108                     break;
 109                 }
 110             }
 111         }
 112
 113         void SvgCircleNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool /*bReferenced*/) const
 114         {
 115             const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
 116
 117             if(!(pStyle && getR().isSet()))
 118                 return;
 119
 120             const double fR(getR().solve(*this));
 121
 122             if(fR <= 0.0)
 123                 return;
 124
 125             const basegfx::B2DPolygon aPath(
 126                 basegfx::utils::createPolygonFromCircle(
 127                     basegfx::B2DPoint(
 128                         getCx().isSet() ? getCx().solve(*this, NumberType::xcoordinate) : 0.0,
 129                         getCy().isSet() ? getCy().solve(*this, NumberType::ycoordinate) : 0.0),
 130                     fR));
 131
 132             drawinglayer::primitive2d::Primitive2DContainer aNewTarget;
 133
 134             pStyle->add_path(basegfx::B2DPolyPolygon(aPath), aNewTarget, nullptr);
 135
 136             if(!aNewTarget.empty())
 137             {
 138                 pStyle->add_postProcess(rTarget, std::move(aNewTarget), getTransform());
 139             }
 140         }
 141 } // end of namespace svgio::svgreader
 142
 143 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */