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 <svgio/svgreader/svgellipsenode.hxx>
  21 #include <basegfx/polygon/b2dpolygon.hxx>
  22 #include <basegfx/polygon/b2dpolygontools.hxx>
  23
  24 //////////////////////////////////////////////////////////////////////////////
  25
  26 namespace svgio
  27 {
  28     namespace svgreader
  29     {
  30         SvgEllipseNode::SvgEllipseNode(
  31             SvgDocument& rDocument,
  32             SvgNode* pParent)
  33         :   SvgNode(SVGTokenEllipse, rDocument, pParent),
  34             maSvgStyleAttributes(*this),
  35             maCx(0),
  36             maCy(0),
  37             maRx(0),
  38             maRy(0),
  39             mpaTransform(0)
  40         {
  41         }
  42
  43         SvgEllipseNode::~SvgEllipseNode()
  44         {
  45             if(mpaTransform) delete mpaTransform;
  46         }
  47
  48         const SvgStyleAttributes* SvgEllipseNode::getSvgStyleAttributes() const
  49         {
  50             static rtl::OUString aClassStr(rtl::OUString::createFromAscii("ellipse"));
  51             return checkForCssStyle(aClassStr, maSvgStyleAttributes);
  52         }
  53
  54         void SvgEllipseNode::parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent)
  55         {
  56             // call parent
  57             SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
  58
  59             // read style attributes
  60             maSvgStyleAttributes.parseStyleAttribute(rTokenName, aSVGToken, aContent);
  61
  62             // parse own
  63             switch(aSVGToken)
  64             {
  65                 case SVGTokenStyle:
  66                 {
  67                     maSvgStyleAttributes.readStyle(aContent);
  68                     break;
  69                 }
  70                 case SVGTokenCx:
  71                 {
  72                     SvgNumber aNum;
  73
  74                     if(readSingleNumber(aContent, aNum))
  75                     {
  76                         setCx(aNum);
  77                     }
  78                     break;
  79                 }
  80                 case SVGTokenCy:
  81                 {
  82                     SvgNumber aNum;
  83
  84                     if(readSingleNumber(aContent, aNum))
  85                     {
  86                         setCy(aNum);
  87                     }
  88                     break;
  89                 }
  90                 case SVGTokenRx:
  91                 {
  92                     SvgNumber aNum;
  93
  94                     if(readSingleNumber(aContent, aNum))
  95                     {
  96                         if(aNum.isPositive())
  97                         {
  98                             setRx(aNum);
  99                         }
 100                     }
 101                     break;
 102                 }
 103                 case SVGTokenRy:
 104                 {
 105                     SvgNumber aNum;
 106
 107                     if(readSingleNumber(aContent, aNum))
 108                     {
 109                         if(aNum.isPositive())
 110                         {
 111                             setRy(aNum);
 112                         }
 113                     }
 114                     break;
 115                 }
 116                 case SVGTokenTransform:
 117                 {
 118                     const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
 119
 120                     if(!aMatrix.isIdentity())
 121                     {
 122                         setTransform(&aMatrix);
 123                     }
 124                     break;
 125                 }
 126                 default:
 127                 {
 128                     break;
 129                 }
 130             }
 131         }
 132
 133         void SvgEllipseNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DSequence& rTarget, bool /*bReferenced*/) const
 134         {
 135             const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
 136
 137             if(pStyle && getRx().isSet() && getRy().isSet())
 138             {
 139                 const double fRx(getRx().solve(*this, xcoordinate));
 140                 const double fRy(getRy().solve(*this, ycoordinate));
 141
 142                 if(fRx > 0.0 && fRy > 0.0)
 143                 {
 144                     const basegfx::B2DPolygon aPath(
 145                         basegfx::tools::createPolygonFromEllipse(
 146                             basegfx::B2DPoint(
 147                                 getCx().isSet() ? getCx().solve(*this, xcoordinate) : 0.0,
 148                                 getCy().isSet() ? getCy().solve(*this, ycoordinate) : 0.0),
 149                             fRx, fRy));
 150
 151                     drawinglayer::primitive2d::Primitive2DSequence aNewTarget;
 152
 153                     pStyle->add_path(basegfx::B2DPolyPolygon(aPath), aNewTarget);
 154
 155                     if(aNewTarget.hasElements())
 156                     {
 157                         pStyle->add_postProcess(rTarget, aNewTarget, getTransform());
 158                     }
 159                 }
 160             }
 161         }
 162     } // end of namespace svgreader
 163 } // end of namespace svgio
 164
 165 //////////////////////////////////////////////////////////////////////////////
 166 // eof
 167
 168 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */