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         {
  37         }
  38
  39         SvgRectNode::~SvgRectNode()
  40         {
  41         }
  42
  43         const SvgStyleAttributes* SvgRectNode::getSvgStyleAttributes() const
  44         {
  45             return checkForCssStyle(maSvgStyleAttributes);
  46         }
  47
  48         void SvgRectNode::parseAttribute(SVGToken aSVGToken, const OUString& aContent)
  49         {
  50             // call parent
  51             SvgNode::parseAttribute(aSVGToken, aContent);
  52
  53             // read style attributes
  54             maSvgStyleAttributes.parseStyleAttribute(aSVGToken, aContent);
  55
  56             // parse own
  57             switch(aSVGToken)
  58             {
  59                 case SVGToken::Style:
  60                 {
  61                     readLocalCssStyle(aContent);
  62                     break;
  63                 }
  64                 case SVGToken::X:
  65                 {
  66                     SvgNumber aNum;
  67
  68                     if(readSingleNumber(aContent, aNum))
  69                     {
  70                         maX = aNum;
  71                     }
  72                     break;
  73                 }
  74                 case SVGToken::Y:
  75                 {
  76                     SvgNumber aNum;
  77
  78                     if(readSingleNumber(aContent, aNum))
  79                     {
  80                         maY = aNum;
  81                     }
  82                     break;
  83                 }
  84                 case SVGToken::Width:
  85                 {
  86                     SvgNumber aNum;
  87
  88                     if(readSingleNumber(aContent, aNum))
  89                     {
  90                         if(aNum.isPositive())
  91                         {
  92                             maWidth = aNum;
  93                         }
  94                     }
  95                     break;
  96                 }
  97                 case SVGToken::Height:
  98                 {
  99                     SvgNumber aNum;
 100
 101                     if(readSingleNumber(aContent, aNum))
 102                     {
 103                         if(aNum.isPositive())
 104                         {
 105                             maHeight = aNum;
 106                         }
 107                     }
 108                     break;
 109                 }
 110                 case SVGToken::Rx:
 111                 {
 112                     SvgNumber aNum;
 113
 114                     if(readSingleNumber(aContent, aNum))
 115                     {
 116                         if(aNum.isPositive())
 117                         {
 118                             maRx = aNum;
 119                         }
 120                     }
 121                     break;
 122                 }
 123                 case SVGToken::Ry:
 124                 {
 125                     SvgNumber aNum;
 126
 127                     if(readSingleNumber(aContent, aNum))
 128                     {
 129                         if(aNum.isPositive())
 130                         {
 131                             maRy = aNum;
 132                         }
 133                     }
 134                     break;
 135                 }
 136                 case SVGToken::Transform:
 137                 {
 138                     const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
 139
 140                     if(!aMatrix.isIdentity())
 141                     {
 142                         setTransform(aMatrix);
 143                     }
 144                     break;
 145                 }
 146                 default:
 147                 {
 148                     break;
 149                 }
 150             }
 151         }
 152
 153         void SvgRectNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool /*bReferenced*/) const
 154         {
 155             // get size range and create path
 156             const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
 157
 158             if(!(pStyle && getWidth().isSet() && getHeight().isSet()))
 159                 return;
 160
 161             const double fWidth(getWidth().solve(*this, NumberType::xcoordinate));
 162             const double fHeight(getHeight().solve(*this, NumberType::ycoordinate));
 163
 164             if(fWidth <= 0.0 || fHeight <= 0.0)
 165                 return;
 166
 167             const double fX(getX().isSet() ? getX().solve(*this, NumberType::xcoordinate) : 0.0);
 168             const double fY(getY().isSet() ? getY().solve(*this, NumberType::ycoordinate) : 0.0);
 169             const basegfx::B2DRange aRange(fX, fY, fX + fWidth, fY + fHeight);
 170             basegfx::B2DPolygon aPath;
 171
 172             if(getRx().isSet() || getRy().isSet())
 173             {
 174                 double frX(getRx().isSet() ? getRx().solve(*this, NumberType::xcoordinate) : 0.0);
 175                 double frY(getRy().isSet() ? getRy().solve(*this, NumberType::ycoordinate) : 0.0);
 176
 177                 if(!getRy().isSet() && 0.0 == frY && frX > 0.0)
 178                 {
 179                     frY = frX;
 180                 }
 181                 else if(!getRx().isSet() && 0.0 == frX && frY > 0.0)
 182                 {
 183                     frX = frY;
 184                 }
 185
 186                 frX /= fWidth;
 187                 frY /= fHeight;
 188
 189                 frX = std::min(0.5, frX);
 190                 frY = std::min(0.5, frY);
 191
 192                 aPath = basegfx::utils::createPolygonFromRect(aRange, frX * 2.0, frY * 2.0);
 193             }
 194             else
 195             {
 196                 aPath = basegfx::utils::createPolygonFromRect(aRange);
 197             }
 198
 199             drawinglayer::primitive2d::Primitive2DContainer aNewTarget;
 200
 201             pStyle->add_path(basegfx::B2DPolyPolygon(aPath), aNewTarget, nullptr);
 202
 203             if(!aNewTarget.empty())
 204             {
 205                 pStyle->add_postProcess(rTarget, std::move(aNewTarget), getTransform());
 206             }
 207         }
 208 } // end of namespace svgio::svgreader
 209
 210 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */