svgio/source/svgreader/svgellipsenode.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 <svgellipsenode.hxx>
  21 #include <basegfx/polygon/b2dpolygon.hxx>
  22 #include <basegfx/polygon/b2dpolygontools.hxx>
  23
  24 namespace svgio
  25 {
  26     namespace svgreader
  27     {
  28         SvgEllipseNode::SvgEllipseNode(
  29             SvgDocument& rDocument,
  30             SvgNode* pParent)
  31         :   SvgNode(SVGTokenEllipse, rDocument, pParent),
  32             maSvgStyleAttributes(*this),
  33             maCx(0),
  34             maCy(0),
  35             maRx(0),
  36             maRy(0)
  37         {
  38         }
  39
  40         SvgEllipseNode::~SvgEllipseNode()
  41         {
  42         }
  43
  44         const SvgStyleAttributes* SvgEllipseNode::getSvgStyleAttributes() const
  45         {
  46             return checkForCssStyle("ellipse", maSvgStyleAttributes);
  47         }
  48
  49         void SvgEllipseNode::parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent)
  50         {
  51             // call parent
  52             SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
  53
  54             // read style attributes
  55             maSvgStyleAttributes.parseStyleAttribute(aSVGToken, aContent, false);
  56
  57             // parse own
  58             switch(aSVGToken)
  59             {
  60                 case SVGTokenStyle:
  61                 {
  62                     readLocalCssStyle(aContent);
  63                     break;
  64                 }
  65                 case SVGTokenCx:
  66                 {
  67                     SvgNumber aNum;
  68
  69                     if(readSingleNumber(aContent, aNum))
  70                     {
  71                         maCx = aNum;
  72                     }
  73                     break;
  74                 }
  75                 case SVGTokenCy:
  76                 {
  77                     SvgNumber aNum;
  78
  79                     if(readSingleNumber(aContent, aNum))
  80                     {
  81                         maCy = aNum;
  82                     }
  83                     break;
  84                 }
  85                 case SVGTokenRx:
  86                 {
  87                     SvgNumber aNum;
  88
  89                     if(readSingleNumber(aContent, aNum))
  90                     {
  91                         if(aNum.isPositive())
  92                         {
  93                             maRx = aNum;
  94                         }
  95                     }
  96                     break;
  97                 }
  98                 case SVGTokenRy:
  99                 {
 100                     SvgNumber aNum;
 101
 102                     if(readSingleNumber(aContent, aNum))
 103                     {
 104                         if(aNum.isPositive())
 105                         {
 106                             maRy = aNum;
 107                         }
 108                     }
 109                     break;
 110                 }
 111                 case SVGTokenTransform:
 112                 {
 113                     const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
 114
 115                     if(!aMatrix.isIdentity())
 116                     {
 117                         setTransform(&aMatrix);
 118                     }
 119                     break;
 120                 }
 121                 default:
 122                 {
 123                     break;
 124                 }
 125             }
 126         }
 127
 128         void SvgEllipseNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool /*bReferenced*/) const
 129         {
 130             const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
 131
 132             if(!(pStyle && getRx().isSet() && getRy().isSet()))
 133                 return;
 134
 135             const double fRx(getRx().solve(*this, xcoordinate));
 136             const double fRy(getRy().solve(*this, ycoordinate));
 137
 138             if(!(fRx > 0.0 && fRy > 0.0))
 139                 return;
 140
 141             const basegfx::B2DPolygon aPath(
 142                 basegfx::utils::createPolygonFromEllipse(
 143                     basegfx::B2DPoint(
 144                         getCx().isSet() ? getCx().solve(*this, xcoordinate) : 0.0,
 145                         getCy().isSet() ? getCy().solve(*this, ycoordinate) : 0.0),
 146                     fRx, fRy));
 147
 148             drawinglayer::primitive2d::Primitive2DContainer aNewTarget;
 149
 150             pStyle->add_path(basegfx::B2DPolyPolygon(aPath), aNewTarget, nullptr);
 151
 152             if(!aNewTarget.empty())
 153             {
 154                 pStyle->add_postProcess(rTarget, aNewTarget, getTransform());
 155             }
 156         }
 157     } // end of namespace svgreader
 158 } // end of namespace svgio
 159
 160 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */