/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <svgsymbolnode.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
namespace svgio::svgreader
{
SvgSymbolNode::SvgSymbolNode(
SvgDocument& rDocument,
SvgNode* pParent)
: SvgNode(SVGToken::Symbol, rDocument, pParent),
maSvgStyleAttributes(*
this)
{
}
SvgSymbolNode::~SvgSymbolNode()
{
}
const SvgStyleAttributes* SvgSymbolNode::getSvgStyleAttributes()
const
{
return &maSvgStyleAttributes;
}
void SvgSymbolNode::parseAttribute(SVGToken aSVGToken,
const OUString& aContent)
{
// call parent
SvgNode::parseAttribute(aSVGToken, aContent);
// read style attributes
maSvgStyleAttributes.parseStyleAttribute(aSVGToken, aContent);
// parse own
switch(aSVGToken)
{
case SVGToken::Style:
{
readLocalCssStyle(aContent);
break;
}
case SVGToken::X:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
maX = aNum;
}
break;
}
case SVGToken::Y:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
maY = aNum;
}
break;
}
case SVGToken::Width:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
if(aNum.isPositive())
{
maWidth = aNum;
}
}
break;
}
case SVGToken::Height:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
if(aNum.isPositive())
{
maHeight = aNum;
}
}
break;
}
case SVGToken::ViewBox:
{
const basegfx::B2DRange aRange(readViewBox(aContent, *
this));
if(!aRange.isEmpty())
{
setViewBox(&aRange);
}
break;
}
case SVGToken::PreserveAspectRatio:
{
maSvgAspectRatio = readSvgAspectRatio(aContent);
break;
}
default:
{
break;
}
}
}
void SvgSymbolNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContai
ner& rTarget, bool bReferenced) const
{
// decompose children
drawinglayer::primitive2d::Primitive2DContainer aContent;
SvgNode::decomposeSvgNode(aContent, bReferenced);
// no geometry provided, done
if (aContent.empty())
return;
// if no ViewBox append aContent without embedding
if(nullptr == getViewBox())
{
rTarget.append(aContent);
return;
}
// prepare range of imported geometry
// tdf#164434 CAUTION: There *are* svg files which do not define
// all needed data, e.g. x/y/w/h might be missing in any combination.
// As fallback, use size of imported geometry. Do this separate for
// position and size to do the best if only one value pair is provided
basegfx::B2DRange aImportedRange;
basegfx::B2DPoint aPosition;
basegfx::B2DVector aSize;
// evaluate position
if (maX.isSet() && maY.isSet())
{
// use values from imported svg if both provided
aPosition = basegfx::B2DPoint(
maX.solve(*this, NumberType::xcoordinate),
maY.solve(*this, NumberType::ycoordinate));
}
else
{
// fallback to imported geometry
drawinglayer::geometry::ViewInformation2D aViewInfo;
aImportedRange = aContent.getB2DRange(aViewInfo);
aPosition = aImportedRange.getMinimum();
}
// evaluate size
if (maWidth.isSet() && maHeight.isSet())
{
// use values from imported svg if both provided
aSize = basegfx::B2DVector(
maWidth.solve(*this, NumberType::xcoordinate),
maHeight.solve(*this, NumberType::ycoordinate));
}
else
{
// fallback to imported geometry
if (aImportedRange.isEmpty())
{
drawinglayer::geometry::ViewInformation2D aViewInfo;
aImportedRange = aContent.getB2DRange(aViewInfo);
}
aSize = aImportedRange.getRange();
}
// tdf#164434 no size, no geometry, done
if (0.0 == aSize.getX() || 0.0 == aSize.getY())
return;
// create mapping using SvgAspectRatio
const SvgAspectRatio& rRatio = getSvgAspectRatio();
const basegfx::B2DHomMatrix aEmbeddingTransform(
rRatio.createMapping(basegfx::B2DRange(aPosition, aPosition + aSize), *getViewBox()));
// prepare embedding in transformation
// create embedding group element with transformation
const drawinglayer::primitive2d::Primitive2DReference xRef(
new drawinglayer::primitive2d::TransformPrimitive2D(
aEmbeddingTransform,
drawinglayer::primitive2d::Primitive2DContainer(std::move(aContent))));
// add embedded geometry to result
rTarget.push_back(xRef);
}
} // end of namespace svgio::svgreader
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