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/b2dpolypolygon.hxx>
  23
  24 namespace svgio::svgreader
  25 {
  26         SvgLineNode::SvgLineNode(
  27             SvgDocument& rDocument,
  28             SvgNode* pParent)
  29         :   SvgNode(SVGToken::Line, rDocument, pParent),
  30             maSvgStyleAttributes(*this),
  31             maX1(0),
  32             maY1(0),
  33             maX2(0),
  34             maY2(0)
  35         {
  36         }
  37
  38         SvgLineNode::~SvgLineNode()
  39         {
  40         }
  41
  42         const SvgStyleAttributes* SvgLineNode::getSvgStyleAttributes() const
  43         {
  44             return checkForCssStyle("line", maSvgStyleAttributes);
  45         }
  46
  47         void SvgLineNode::parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent)
  48         {
  49             // call parent
  50             SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
  51
  52             // read style attributes
  53             maSvgStyleAttributes.parseStyleAttribute(aSVGToken, aContent, false);
  54
  55             // parse own
  56             switch(aSVGToken)
  57             {
  58                 case SVGToken::Style:
  59                 {
  60                     readLocalCssStyle(aContent);
  61                     break;
  62                 }
  63                 case SVGToken::X1:
  64                 {
  65                     SvgNumber aNum;
  66
  67                     if(readSingleNumber(aContent, aNum))
  68                     {
  69                         maX1 = aNum;
  70                     }
  71                     break;
  72                 }
  73                 case SVGToken::Y1:
  74                 {
  75                     SvgNumber aNum;
  76
  77                     if(readSingleNumber(aContent, aNum))
  78                     {
  79                         maY1 = aNum;
  80                     }
  81                     break;
  82                 }
  83                 case SVGToken::X2:
  84                 {
  85                     SvgNumber aNum;
  86
  87                     if(readSingleNumber(aContent, aNum))
  88                     {
  89                         maX2 = aNum;
  90                     }
  91                     break;
  92                 }
  93                 case SVGToken::Y2:
  94                 {
  95                     SvgNumber aNum;
  96
  97                     if(readSingleNumber(aContent, aNum))
  98                     {
  99                         maY2 = aNum;
 100                     }
 101                     break;
 102                 }
 103                 case SVGToken::Transform:
 104                 {
 105                     const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
 106
 107                     if(!aMatrix.isIdentity())
 108                     {
 109                         setTransform(&aMatrix);
 110                     }
 111                     break;
 112                 }
 113                 default:
 114                 {
 115                     break;
 116                 }
 117             }
 118         }
 119
 120         void SvgLineNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool /*bReferenced*/) const
 121         {
 122             const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
 123
 124             if(!pStyle)
 125                 return;
 126
 127             const basegfx::B2DPoint X(
 128                 getX1().isSet() ? getX1().solve(*this, NumberType::xcoordinate) : 0.0,
 129                 getY1().isSet() ? getY1().solve(*this, NumberType::ycoordinate) : 0.0);
 130             const basegfx::B2DPoint Y(
 131                 getX2().isSet() ? getX2().solve(*this, NumberType::xcoordinate) : 0.0,
 132                 getY2().isSet() ? getY2().solve(*this, NumberType::ycoordinate) : 0.0);
 133
 134             // X and Y may be equal, do not drop them. Markers or linecaps 'round' and 'square'
 135             // need to be drawn for zero-length lines too.
 136
 137             basegfx::B2DPolygon aPath;
 138
 139             aPath.append(X);
 140             aPath.append(Y);
 141
 142             drawinglayer::primitive2d::Primitive2DContainer aNewTarget;
 143
 144             pStyle->add_path(basegfx::B2DPolyPolygon(aPath), aNewTarget, nullptr);
 145
 146             if(!aNewTarget.empty())
 147             {
 148                 pStyle->add_postProcess(rTarget, aNewTarget, getTransform());
 149             }
 150         }
 151 } // end of namespace svgio::svgreader
 152
 153 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */