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
  24 namespace svgio
  25 {
  26     namespace svgreader
  27     {
  28         SvgCircleNode::SvgCircleNode(
  29             SvgDocument& rDocument,
  30             SvgNode* pParent)
  31         :   SvgNode(SVGTokenCircle, rDocument, pParent),
  32             maSvgStyleAttributes(*this),
  33             maCx(0),
  34             maCy(0),
  35             maR(0)
  36         {
  37         }
  38
  39         SvgCircleNode::~SvgCircleNode()
  40         {
  41         }
  42
  43         const SvgStyleAttributes* SvgCircleNode::getSvgStyleAttributes() const
  44         {
  45             return checkForCssStyle("circle", maSvgStyleAttributes);
  46         }
  47
  48         void SvgCircleNode::parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent)
  49         {
  50             // call parent
  51             SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
  52
  53             // read style attributes
  54             maSvgStyleAttributes.parseStyleAttribute(aSVGToken, aContent, false);
  55
  56             // parse own
  57             switch(aSVGToken)
  58             {
  59                 case SVGTokenStyle:
  60                 {
  61                     readLocalCssStyle(aContent);
  62                     break;
  63                 }
  64                 case SVGTokenCx:
  65                 {
  66                     SvgNumber aNum;
  67
  68                     if(readSingleNumber(aContent, aNum))
  69                     {
  70                         maCx = aNum;
  71                     }
  72                     break;
  73                 }
  74                 case SVGTokenCy:
  75                 {
  76                     SvgNumber aNum;
  77
  78                     if(readSingleNumber(aContent, aNum))
  79                     {
  80                         maCy = aNum;
  81                     }
  82                     break;
  83                 }
  84                 case SVGTokenR:
  85                 {
  86                     SvgNumber aNum;
  87
  88                     if(readSingleNumber(aContent, aNum))
  89                     {
  90                         if(aNum.isPositive())
  91                         {
  92                             maR = aNum;
  93                         }
  94                     }
  95                     break;
  96                 }
  97                 case SVGTokenTransform:
  98                 {
  99                     const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
 100
 101                     if(!aMatrix.isIdentity())
 102                     {
 103                         setTransform(&aMatrix);
 104                     }
 105                     break;
 106                 }
 107                 default:
 108                 {
 109                     break;
 110                 }
 111             }
 112         }
 113
 114         void SvgCircleNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool /*bReferenced*/) const
 115         {
 116             const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
 117
 118             if(pStyle && getR().isSet())
 119             {
 120                 const double fR(getR().solve(*this));
 121
 122                 if(fR > 0.0)
 123                 {
 124                     const basegfx::B2DPolygon aPath(
 125                         basegfx::utils::createPolygonFromCircle(
 126                             basegfx::B2DPoint(
 127                                 getCx().isSet() ? getCx().solve(*this, xcoordinate) : 0.0,
 128                                 getCy().isSet() ? getCy().solve(*this, ycoordinate) : 0.0),
 129                             fR));
 130
 131                     drawinglayer::primitive2d::Primitive2DContainer aNewTarget;
 132
 133                     pStyle->add_path(basegfx::B2DPolyPolygon(aPath), aNewTarget, nullptr);
 134
 135                     if(!aNewTarget.empty())
 136                     {
 137                         pStyle->add_postProcess(rTarget, aNewTarget, getTransform());
 138                     }
 139                 }
 140             }
 141         }
 142     } // end of namespace svgreader
 143 } // end of namespace svgio
 144
 145 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */