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             maSvgStyleAttributes.checkForCssStyle(aClassStr);
  52
  53             return &maSvgStyleAttributes;
  54         }
  55
  56         void SvgEllipseNode::parseAttribute(const rtl::OUString& rTokenName, SVGToken aSVGToken, const rtl::OUString& aContent)
  57         {
  58             // call parent
  59             SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
  60
  61             // read style attributes
  62             maSvgStyleAttributes.parseStyleAttribute(rTokenName, aSVGToken, aContent);
  63
  64             // parse own
  65             switch(aSVGToken)
  66             {
  67                 case SVGTokenStyle:
  68                 {
  69                     maSvgStyleAttributes.readStyle(aContent);
  70                     break;
  71                 }
  72                 case SVGTokenCx:
  73                 {
  74                     SvgNumber aNum;
  75
  76                     if(readSingleNumber(aContent, aNum))
  77                     {
  78                         setCx(aNum);
  79                     }
  80                     break;
  81                 }
  82                 case SVGTokenCy:
  83                 {
  84                     SvgNumber aNum;
  85
  86                     if(readSingleNumber(aContent, aNum))
  87                     {
  88                         setCy(aNum);
  89                     }
  90                     break;
  91                 }
  92                 case SVGTokenRx:
  93                 {
  94                     SvgNumber aNum;
  95
  96                     if(readSingleNumber(aContent, aNum))
  97                     {
  98                         if(aNum.isPositive())
  99                         {
 100                             setRx(aNum);
 101                         }
 102                     }
 103                     break;
 104                 }
 105                 case SVGTokenRy:
 106                 {
 107                     SvgNumber aNum;
 108
 109                     if(readSingleNumber(aContent, aNum))
 110                     {
 111                         if(aNum.isPositive())
 112                         {
 113                             setRy(aNum);
 114                         }
 115                     }
 116                     break;
 117                 }
 118                 case SVGTokenTransform:
 119                 {
 120                     const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
 121
 122                     if(!aMatrix.isIdentity())
 123                     {
 124                         setTransform(&aMatrix);
 125                     }
 126                     break;
 127                 }
 128                 default:
 129                 {
 130                     break;
 131                 }
 132             }
 133         }
 134
 135         void SvgEllipseNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DSequence& rTarget, bool /*bReferenced*/) const
 136         {
 137             const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
 138
 139             if(pStyle && getRx().isSet() && getRy().isSet())
 140             {
 141                 const double fRx(getRx().solve(*this, xcoordinate));
 142                 const double fRy(getRy().solve(*this, ycoordinate));
 143
 144                 if(fRx > 0.0 && fRy > 0.0)
 145                 {
 146                     const basegfx::B2DPolygon aPath(
 147                         basegfx::tools::createPolygonFromEllipse(
 148                             basegfx::B2DPoint(
 149                                 getCx().isSet() ? getCx().solve(*this, xcoordinate) : 0.0,
 150                                 getCy().isSet() ? getCy().solve(*this, ycoordinate) : 0.0),
 151                             fRx, fRy));
 152
 153                     drawinglayer::primitive2d::Primitive2DSequence aNewTarget;
 154
 155                     pStyle->add_path(basegfx::B2DPolyPolygon(aPath), aNewTarget);
 156
 157                     if(aNewTarget.hasElements())
 158                     {
 159                         pStyle->add_postProcess(rTarget, aNewTarget, getTransform());
 160                     }
 161                 }
 162             }
 163         }
 164     } // end of namespace svgreader
 165 } // end of namespace svgio
 166
 167 //////////////////////////////////////////////////////////////////////////////
 168 // eof
 169
 170 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */