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