svgio/source/svgreader/svgrectnode.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 <svgrectnode.hxx>
  21 #include <basegfx/polygon/b2dpolygon.hxx>
  22 #include <basegfx/polygon/b2dpolygontools.hxx>
  23 #include <basegfx/polygon/b2dpolypolygon.hxx>
  24
  25 namespace svgio::svgreader
  26 {
  27         SvgRectNode::SvgRectNode(
  28             SvgDocument& rDocument,
  29             SvgNode* pParent)
  30         :   SvgNode(SVGToken::Rect, rDocument, pParent),
  31             maSvgStyleAttributes(*this),
  32             maX(0),
  33             maY(0),
  34             maWidth(0),
  35             maHeight(0),
  36             maRx(0),
  37             maRy(0)
  38         {
  39         }
  40
  41         SvgRectNode::~SvgRectNode()
  42         {
  43         }
  44
  45         const SvgStyleAttributes* SvgRectNode::getSvgStyleAttributes() const
  46         {
  47             return checkForCssStyle("rect", maSvgStyleAttributes);
  48         }
  49
  50         void SvgRectNode::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);
  57
  58             // parse own
  59             switch(aSVGToken)
  60             {
  61                 case SVGToken::Style:
  62                 {
  63                     readLocalCssStyle(aContent);
  64                     break;
  65                 }
  66                 case SVGToken::X:
  67                 {
  68                     SvgNumber aNum;
  69
  70                     if(readSingleNumber(aContent, aNum))
  71                     {
  72                         maX = aNum;
  73                     }
  74                     break;
  75                 }
  76                 case SVGToken::Y:
  77                 {
  78                     SvgNumber aNum;
  79
  80                     if(readSingleNumber(aContent, aNum))
  81                     {
  82                         maY = aNum;
  83                     }
  84                     break;
  85                 }
  86                 case SVGToken::Width:
  87                 {
  88                     SvgNumber aNum;
  89
  90                     if(readSingleNumber(aContent, aNum))
  91                     {
  92                         if(aNum.isPositive())
  93                         {
  94                             maWidth = aNum;
  95                         }
  96                     }
  97                     break;
  98                 }
  99                 case SVGToken::Height:
 100                 {
 101                     SvgNumber aNum;
 102
 103                     if(readSingleNumber(aContent, aNum))
 104                     {
 105                         if(aNum.isPositive())
 106                         {
 107                             maHeight = aNum;
 108                         }
 109                     }
 110                     break;
 111                 }
 112                 case SVGToken::Rx:
 113                 {
 114                     SvgNumber aNum;
 115
 116                     if(readSingleNumber(aContent, aNum))
 117                     {
 118                         if(aNum.isPositive())
 119                         {
 120                             maRx = aNum;
 121                         }
 122                     }
 123                     break;
 124                 }
 125                 case SVGToken::Ry:
 126                 {
 127                     SvgNumber aNum;
 128
 129                     if(readSingleNumber(aContent, aNum))
 130                     {
 131                         if(aNum.isPositive())
 132                         {
 133                             maRy = aNum;
 134                         }
 135                     }
 136                     break;
 137                 }
 138                 case SVGToken::Transform:
 139                 {
 140                     const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
 141
 142                     if(!aMatrix.isIdentity())
 143                     {
 144                         setTransform(aMatrix);
 145                     }
 146                     break;
 147                 }
 148                 default:
 149                 {
 150                     break;
 151                 }
 152             }
 153         }
 154
 155         void SvgRectNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool /*bReferenced*/) const
 156         {
 157             // get size range and create path
 158             const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
 159
 160             if(!(pStyle && getWidth().isSet() && getHeight().isSet()))
 161                 return;
 162
 163             const double fWidth(getWidth().solve(*this, NumberType::xcoordinate));
 164             const double fHeight(getHeight().solve(*this, NumberType::ycoordinate));
 165
 166             if(fWidth <= 0.0 || fHeight <= 0.0)
 167                 return;
 168
 169             const double fX(getX().isSet() ? getX().solve(*this, NumberType::xcoordinate) : 0.0);
 170             const double fY(getY().isSet() ? getY().solve(*this, NumberType::ycoordinate) : 0.0);
 171             const basegfx::B2DRange aRange(fX, fY, fX + fWidth, fY + fHeight);
 172             basegfx::B2DPolygon aPath;
 173
 174             if(getRx().isSet() || getRy().isSet())
 175             {
 176                 double frX(getRx().isSet() ? getRx().solve(*this, NumberType::xcoordinate) : 0.0);
 177                 double frY(getRy().isSet() ? getRy().solve(*this, NumberType::ycoordinate) : 0.0);
 178
 179                 frX = std::max(0.0, frX);
 180                 frY = std::max(0.0, frY);
 181
 182                 if(0.0 == frY && frX > 0.0)
 183                 {
 184                     frY = frX;
 185                 }
 186                 else if(0.0 == frX && frY > 0.0)
 187                 {
 188                     frX = frY;
 189                 }
 190
 191                 frX /= fWidth;
 192                 frY /= fHeight;
 193
 194                 frX = std::min(0.5, frX);
 195                 frY = std::min(0.5, frY);
 196
 197                 aPath = basegfx::utils::createPolygonFromRect(aRange, frX * 2.0, frY * 2.0);
 198             }
 199             else
 200             {
 201                 aPath = basegfx::utils::createPolygonFromRect(aRange);
 202             }
 203
 204             drawinglayer::primitive2d::Primitive2DContainer aNewTarget;
 205
 206             pStyle->add_path(basegfx::B2DPolyPolygon(aPath), aNewTarget, nullptr);
 207
 208             if(!aNewTarget.empty())
 209             {
 210                 pStyle->add_postProcess(rTarget, std::move(aNewTarget), getTransform());
 211             }
 212         }
 213 } // end of namespace svgio::svgreader
 214
 215 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */