svgio/source/svgreader/svglinenode.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 <svglinenode.hxx>
  21 #include <basegfx/polygon/b2dpolygon.hxx>
  22 #include <basegfx/polygon/b2dpolygontools.hxx>
  23
  24 namespace svgio
  25 {
  26     namespace svgreader
  27     {
  28         SvgLineNode::SvgLineNode(
  29             SvgDocument& rDocument,
  30             SvgNode* pParent)
  31         :   SvgNode(SVGTokenLine, rDocument, pParent),
  32             maSvgStyleAttributes(*this),
  33             maX1(0),
  34             maY1(0),
  35             maX2(0),
  36             maY2(0),
  37             mpaTransform(nullptr)
  38         {
  39         }
  40
  41         SvgLineNode::~SvgLineNode()
  42         {
  43         }
  44
  45         const SvgStyleAttributes* SvgLineNode::getSvgStyleAttributes() const
  46         {
  47             return checkForCssStyle("line", maSvgStyleAttributes);
  48         }
  49
  50         void SvgLineNode::parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent)
  51         {
  52             // call parent
  53             SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
  54
  55             // read style attributes
  56             maSvgStyleAttributes.parseStyleAttribute(aSVGToken, aContent, false);
  57
  58             // parse own
  59             switch(aSVGToken)
  60             {
  61                 case SVGTokenStyle:
  62                 {
  63                     readLocalCssStyle(aContent);
  64                     break;
  65                 }
  66                 case SVGTokenX1:
  67                 {
  68                     SvgNumber aNum;
  69
  70                     if(readSingleNumber(aContent, aNum))
  71                     {
  72                         maX1 = aNum;
  73                     }
  74                     break;
  75                 }
  76                 case SVGTokenY1:
  77                 {
  78                     SvgNumber aNum;
  79
  80                     if(readSingleNumber(aContent, aNum))
  81                     {
  82                         maY1 = aNum;
  83                     }
  84                     break;
  85                 }
  86                 case SVGTokenX2:
  87                 {
  88                     SvgNumber aNum;
  89
  90                     if(readSingleNumber(aContent, aNum))
  91                     {
  92                         maX2 = aNum;
  93                     }
  94                     break;
  95                 }
  96                 case SVGTokenY2:
  97                 {
  98                     SvgNumber aNum;
  99
 100                     if(readSingleNumber(aContent, aNum))
 101                     {
 102                         maY2 = aNum;
 103                     }
 104                     break;
 105                 }
 106                 case SVGTokenTransform:
 107                 {
 108                     const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
 109
 110                     if(!aMatrix.isIdentity())
 111                     {
 112                         setTransform(&aMatrix);
 113                     }
 114                     break;
 115                 }
 116                 default:
 117                 {
 118                     break;
 119                 }
 120             }
 121         }
 122
 123         void SvgLineNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool /*bReferenced*/) const
 124         {
 125             const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
 126
 127             if(pStyle)
 128             {
 129                 const basegfx::B2DPoint X(
 130                     getX1().isSet() ? getX1().solve(*this, xcoordinate) : 0.0,
 131                     getY1().isSet() ? getY1().solve(*this, ycoordinate) : 0.0);
 132                 const basegfx::B2DPoint Y(
 133                     getX2().isSet() ? getX2().solve(*this, xcoordinate) : 0.0,
 134                     getY2().isSet() ? getY2().solve(*this, ycoordinate) : 0.0);
 135
 136                 // X and Y may be equal, do not drop them. Markers or linecaps 'round' and 'square'
 137                 // need to be drawn for zero-length lines too.
 138
 139                 basegfx::B2DPolygon aPath;
 140
 141                 aPath.append(X);
 142                 aPath.append(Y);
 143
 144                 drawinglayer::primitive2d::Primitive2DContainer aNewTarget;
 145
 146                 pStyle->add_path(basegfx::B2DPolyPolygon(aPath), aNewTarget, nullptr);
 147
 148                 if(!aNewTarget.empty())
 149                 {
 150                     pStyle->add_postProcess(rTarget, aNewTarget, getTransform());
 151                 }
 152             }
 153         }
 154     } // end of namespace svgreader
 155 } // end of namespace svgio
 156
 157 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */