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
  24 namespace svgio
  25 {
  26     namespace svgreader
  27     {
  28         SvgRectNode::SvgRectNode(
  29             SvgDocument& rDocument,
  30             SvgNode* pParent)
  31         :   SvgNode(SVGTokenRect, rDocument, pParent),
  32             maSvgStyleAttributes(*this),
  33             maX(0),
  34             maY(0),
  35             maWidth(0),
  36             maHeight(0),
  37             maRx(0),
  38             maRy(0)
  39         {
  40         }
  41
  42         SvgRectNode::~SvgRectNode()
  43         {
  44         }
  45
  46         const SvgStyleAttributes* SvgRectNode::getSvgStyleAttributes() const
  47         {
  48             return checkForCssStyle("rect", maSvgStyleAttributes);
  49         }
  50
  51         void SvgRectNode::parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent)
  52         {
  53             // call parent
  54             SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
  55
  56             // read style attributes
  57             maSvgStyleAttributes.parseStyleAttribute(aSVGToken, aContent, false);
  58
  59             // parse own
  60             switch(aSVGToken)
  61             {
  62                 case SVGTokenStyle:
  63                 {
  64                     readLocalCssStyle(aContent);
  65                     break;
  66                 }
  67                 case SVGTokenX:
  68                 {
  69                     SvgNumber aNum;
  70
  71                     if(readSingleNumber(aContent, aNum))
  72                     {
  73                         maX = aNum;
  74                     }
  75                     break;
  76                 }
  77                 case SVGTokenY:
  78                 {
  79                     SvgNumber aNum;
  80
  81                     if(readSingleNumber(aContent, aNum))
  82                     {
  83                         maY = aNum;
  84                     }
  85                     break;
  86                 }
  87                 case SVGTokenWidth:
  88                 {
  89                     SvgNumber aNum;
  90
  91                     if(readSingleNumber(aContent, aNum))
  92                     {
  93                         if(aNum.isPositive())
  94                         {
  95                             maWidth = aNum;
  96                         }
  97                     }
  98                     break;
  99                 }
 100                 case SVGTokenHeight:
 101                 {
 102                     SvgNumber aNum;
 103
 104                     if(readSingleNumber(aContent, aNum))
 105                     {
 106                         if(aNum.isPositive())
 107                         {
 108                             maHeight = aNum;
 109                         }
 110                     }
 111                     break;
 112                 }
 113                 case SVGTokenRx:
 114                 {
 115                     SvgNumber aNum;
 116
 117                     if(readSingleNumber(aContent, aNum))
 118                     {
 119                         if(aNum.isPositive())
 120                         {
 121                             maRx = aNum;
 122                         }
 123                     }
 124                     break;
 125                 }
 126                 case SVGTokenRy:
 127                 {
 128                     SvgNumber aNum;
 129
 130                     if(readSingleNumber(aContent, aNum))
 131                     {
 132                         if(aNum.isPositive())
 133                         {
 134                             maRy = aNum;
 135                         }
 136                     }
 137                     break;
 138                 }
 139                 case SVGTokenTransform:
 140                 {
 141                     const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
 142
 143                     if(!aMatrix.isIdentity())
 144                     {
 145                         setTransform(&aMatrix);
 146                     }
 147                     break;
 148                 }
 149                 default:
 150                 {
 151                     break;
 152                 }
 153             }
 154         }
 155
 156         void SvgRectNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool /*bReferenced*/) const
 157         {
 158             // get size range and create path
 159             const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
 160
 161             if(pStyle && getWidth().isSet() && getHeight().isSet())
 162             {
 163                 const double fWidth(getWidth().solve(*this, xcoordinate));
 164                 const double fHeight(getHeight().solve(*this, ycoordinate));
 165
 166                 if(fWidth > 0.0 && fHeight > 0.0)
 167                 {
 168                     const double fX(getX().isSet() ? getX().solve(*this, xcoordinate) : 0.0);
 169                     const double fY(getY().isSet() ? getY().solve(*this, ycoordinate) : 0.0);
 170                     const basegfx::B2DRange aRange(fX, fY, fX + fWidth, fY + fHeight);
 171                     basegfx::B2DPolygon aPath;
 172
 173                     if(getRx().isSet() || getRy().isSet())
 174                     {
 175                         double frX(getRx().isSet() ? getRx().solve(*this, xcoordinate) : 0.0);
 176                         double frY(getRy().isSet() ? getRy().solve(*this, ycoordinate) : 0.0);
 177
 178                         frX = std::max(0.0, frX);
 179                         frY = std::max(0.0, frY);
 180
 181                         if(0.0 == frY && frX > 0.0)
 182                         {
 183                             frY = frX;
 184                         }
 185                         else if(0.0 == frX && frY > 0.0)
 186                         {
 187                             frX = frY;
 188                         }
 189
 190                         frX /= fWidth;
 191                         frY /= fHeight;
 192
 193                         frX = std::min(0.5, frX);
 194                         frY = std::min(0.5, frY);
 195
 196                         aPath = basegfx::utils::createPolygonFromRect(aRange, frX * 2.0, frY * 2.0);
 197                     }
 198                     else
 199                     {
 200                         aPath = basegfx::utils::createPolygonFromRect(aRange);
 201                     }
 202
 203                     drawinglayer::primitive2d::Primitive2DContainer aNewTarget;
 204
 205                     pStyle->add_path(basegfx::B2DPolyPolygon(aPath), aNewTarget, nullptr);
 206
 207                     if(!aNewTarget.empty())
 208                     {
 209                         pStyle->add_postProcess(rTarget, aNewTarget, getTransform());
 210                     }
 211                 }
 212             }
 213         }
 214     } // end of namespace svgreader
 215 } // end of namespace svgio
 216
 217 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */