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 <svgio/svgreader/svgrectnode.hxx>
  21 #include <basegfx/polygon/b2dpolygon.hxx>
  22 #include <basegfx/polygon/b2dpolygontools.hxx>
  23
  24 //////////////////////////////////////////////////////////////////////////////
  25
  26 namespace svgio
  27 {
  28     namespace svgreader
  29     {
  30         SvgRectNode::SvgRectNode(
  31             SvgDocument& rDocument,
  32             SvgNode* pParent)
  33         :   SvgNode(SVGTokenRect, rDocument, pParent),
  34             maSvgStyleAttributes(*this),
  35             maX(0),
  36             maY(0),
  37             maWidth(0),
  38             maHeight(0),
  39             maRx(0),
  40             maRy(0),
  41             mpaTransform(0)
  42         {
  43         }
  44
  45         SvgRectNode::~SvgRectNode()
  46         {
  47             if(mpaTransform) delete mpaTransform;
  48         }
  49
  50         const SvgStyleAttributes* SvgRectNode::getSvgStyleAttributes() const
  51         {
  52             static rtl::OUString aClassStr(rtl::OUString::createFromAscii("rect"));
  53             return checkForCssStyle(aClassStr, maSvgStyleAttributes);
  54         }
  55
  56         void SvgRectNode::parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent)
  57         {
  58             // call parent
  59             SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
  60
  61             // read style attributes
  62             maSvgStyleAttributes.parseStyleAttribute(rTokenName, aSVGToken, aContent);
  63
  64             // parse own
  65             switch(aSVGToken)
  66             {
  67                 case SVGTokenStyle:
  68                 {
  69                     maSvgStyleAttributes.readStyle(aContent);
  70                     break;
  71                 }
  72                 case SVGTokenX:
  73                 {
  74                     SvgNumber aNum;
  75
  76                     if(readSingleNumber(aContent, aNum))
  77                     {
  78                         setX(aNum);
  79                     }
  80                     break;
  81                 }
  82                 case SVGTokenY:
  83                 {
  84                     SvgNumber aNum;
  85
  86                     if(readSingleNumber(aContent, aNum))
  87                     {
  88                         setY(aNum);
  89                     }
  90                     break;
  91                 }
  92                 case SVGTokenWidth:
  93                 {
  94                     SvgNumber aNum;
  95
  96                     if(readSingleNumber(aContent, aNum))
  97                     {
  98                         if(aNum.isPositive())
  99                         {
 100                             setWidth(aNum);
 101                         }
 102                     }
 103                     break;
 104                 }
 105                 case SVGTokenHeight:
 106                 {
 107                     SvgNumber aNum;
 108
 109                     if(readSingleNumber(aContent, aNum))
 110                     {
 111                         if(aNum.isPositive())
 112                         {
 113                             setHeight(aNum);
 114                         }
 115                     }
 116                     break;
 117                 }
 118                 case SVGTokenRx:
 119                 {
 120                     SvgNumber aNum;
 121
 122                     if(readSingleNumber(aContent, aNum))
 123                     {
 124                         if(aNum.isPositive())
 125                         {
 126                             setRx(aNum);
 127                         }
 128                     }
 129                     break;
 130                 }
 131                 case SVGTokenRy:
 132                 {
 133                     SvgNumber aNum;
 134
 135                     if(readSingleNumber(aContent, aNum))
 136                     {
 137                         if(aNum.isPositive())
 138                         {
 139                             setRy(aNum);
 140                         }
 141                     }
 142                     break;
 143                 }
 144                 case SVGTokenTransform:
 145                 {
 146                     const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
 147
 148                     if(!aMatrix.isIdentity())
 149                     {
 150                         setTransform(&aMatrix);
 151                     }
 152                     break;
 153                 }
 154                 default:
 155                 {
 156                     break;
 157                 }
 158             }
 159         }
 160
 161         void SvgRectNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DSequence& rTarget, bool /*bReferenced*/) const
 162         {
 163             // get size range and create path
 164             const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
 165
 166             if(pStyle && getWidth().isSet() && getHeight().isSet())
 167             {
 168                 const double fWidth(getWidth().solve(*this, xcoordinate));
 169                 const double fHeight(getHeight().solve(*this, ycoordinate));
 170
 171                 if(fWidth > 0.0 && fHeight > 0.0)
 172                 {
 173                     const double fX(getX().isSet() ? getX().solve(*this, xcoordinate) : 0.0);
 174                     const double fY(getY().isSet() ? getY().solve(*this, ycoordinate) : 0.0);
 175                     const basegfx::B2DRange aRange(fX, fY, fX + fWidth, fY + fHeight);
 176                     basegfx::B2DPolygon aPath;
 177
 178                     if(getRx().isSet() || getRy().isSet())
 179                     {
 180                         double frX(getRx().isSet() ? getRx().solve(*this, xcoordinate) : 0.0);
 181                         double frY(getRy().isSet() ? getRy().solve(*this, ycoordinate) : 0.0);
 182
 183                         frX = std::max(0.0, frX);
 184                         frY = std::max(0.0, frY);
 185
 186                         if(0.0 == frY && frX > 0.0)
 187                         {
 188                             frY = frX;
 189                         }
 190                         else if(0.0 == frX && frY > 0.0)
 191                         {
 192                             frX = frY;
 193                         }
 194
 195                         frX /= fWidth;
 196                         frY /= fHeight;
 197
 198                         frX = std::min(0.5, frX);
 199                         frY = std::min(0.5, frY);
 200
 201                         aPath = basegfx::tools::createPolygonFromRect(aRange, frX * 2.0, frY * 2.0);
 202                     }
 203                     else
 204                     {
 205                         aPath = basegfx::tools::createPolygonFromRect(aRange);
 206                     }
 207
 208                     drawinglayer::primitive2d::Primitive2DSequence aNewTarget;
 209
 210                     pStyle->add_path(basegfx::B2DPolyPolygon(aPath), aNewTarget);
 211
 212                     if(aNewTarget.hasElements())
 213                     {
 214                         pStyle->add_postProcess(rTarget, aNewTarget, getTransform());
 215                     }
 216                 }
 217             }
 218         }
 219     } // end of namespace svgreader
 220 } // end of namespace svgio
 221
 222 //////////////////////////////////////////////////////////////////////////////
 223 // eof
 224
 225 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */