/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* 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 <svggradientnode.hxx>
#include <svgdocument.hxx>
#include <svggradientstopnode.hxx>
namespace svgio
{
namespace svgreader
{
void SvgGradientNode::tryToFindLink()
{
if(!mpXLink && !maXLink.isEmpty())
{
mpXLink = dynamic_cast< const SvgGradientNode* >(getDocument().findSvgNodeById(maXLink));
}
}
SvgGradientNode::SvgGradientNode(
SVGToken aType,
SvgDocument& rDocument,
SvgNode* pParent)
: SvgNode(aType, rDocument, pParent),
maSvgStyleAttributes(*this),
maX1(),
maY1(),
maX2(),
maY2(),
maCx(),
maCy(),
maR(),
maFx(),
maFy(),
maGradientUnits(objectBoundingBox),
maSpreadMethod(drawinglayer::primitive2d::SpreadMethod::Pad),
mbResolvingLink(false),
maXLink(),
mpXLink(nullptr)
{
OSL_ENSURE(aType == SVGTokenLinearGradient || aType == SVGTokenRadialGradient, "SvgGradientNode should only be used for Linear and Radial gradient (!)");
}
SvgGradientNode::~SvgGradientNode()
{
// do NOT delete mpXLink, it's only referenced, not owned
}
const SvgStyleAttributes* SvgGradientNode::getSvgStyleAttributes() const
{
return checkForCssStyle(
SVGTokenLinearGradient == getType() ? OUString("linearGradient") : OUString("radialGradient"),
maSvgStyleAttributes);
}
void SvgGradientNode::parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent)
{
// call parent
SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
// read style attributes
maSvgStyleAttributes.parseStyleAttribute(aSVGToken, aContent, false);
// parse own
switch(aSVGToken)
{
case SVGTokenStyle:
{
readLocalCssStyle(aContent);
break;
}
case SVGTokenX1:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
maX1 = aNum;
}
break;
}
case SVGTokenY1:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
maY1 = aNum;
}
break;
}
case SVGTokenX2:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
maX2 = aNum;
}
break;
}
case SVGTokenY2:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
maY2 = aNum;
}
break;
}
case SVGTokenCx:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
maCx = aNum;
}
break;
}
case SVGTokenCy:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
maCy = aNum;
}
break;
}
case SVGTokenFx:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
maFx = aNum;
}
break;
}
case SVGTokenFy:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
maFy = aNum;
}
break;
}
case SVGTokenR:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
if(aNum.isPositive())
{
maR = aNum;
}
}
break;
}
case SVGTokenGradientUnits:
{
if(!aContent.isEmpty())
{
if(aContent.match(commonStrings::aStrUserSpaceOnUse))
{
setGradientUnits(userSpaceOnUse);
}
else if(aContent.match(commonStrings::aStrObjectBoundingBox))
{
setGradientUnits(objectBoundingBox);
}
}
break;
}
case SVGTokenSpreadMethod:
{
if(!aContent.isEmpty())
{
if(aContent.startsWith("pad"))
{
setSpreadMethod(drawinglayer::primitive2d::SpreadMethod::Pad);
}
else if(aContent.startsWith("reflect"))
{
setSpreadMethod(drawinglayer::primitive2d::SpreadMethod::Reflect);
}
else if(aContent.startsWith("repeat"))
{
setSpreadMethod(drawinglayer::primitive2d::SpreadMethod::Repeat);
}
}
break;
}
case SVGTokenGradientTransform:
{
const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
if(!aMatrix.isIdentity())
{
setGradientTransform(&aMatrix);
}
break;
}
case SVGTokenXlinkHref:
{
const sal_Int32 nLen(aContent.getLength());
if(nLen && '#' == aContent[0])
{
maXLink = aContent.copy(1);
tryToFindLink();
}
break;
}
default:
{
break;
}
}
}
void SvgGradientNode::collectGradientEntries(drawinglayer::primitive2d::SvgGradientEntryVector& aVector) const
{
if(getChildren().empty())
{
const_cast< SvgGradientNode* >(this)->tryToFindLink();
if (mpXLink && !mbResolvingLink)
{
mbResolvingLink = true;
mpXLink->collectGradientEntries(aVector);
mbResolvingLink = false;
}
}
else
{
const sal_uInt32 nCount(getChildren().size());
for(sal_uInt32 a(0); a < nCount; a++)
{
const SvgGradientStopNode* pCandidate = dynamic_cast< const SvgGradientStopNode* >(getChildren()[a].get());
if(pCandidate)
{
const SvgStyleAttributes* pStyle = pCandidate->getSvgStyleAttributes();
if(pStyle)
{
const SvgNumber aOffset(pCandidate->getOffset());
double fOffset(0.0);
if(Unit_percent == aOffset.getUnit())
{
// percent is not relative to distances in ColorStop context, solve locally
fOffset = aOffset.getNumber() * 0.01;
}
else
{
fOffset = aOffset.solve(*this);
}
if(fOffset < 0.0)
{
OSL_ENSURE(false, "OOps, SvgGradientStopNode with offset out of range (!)");
fOffset = 0.0;
}
else if(fOffset > 1.0)
{
OSL_ENSURE(false, "OOps, SvgGradientStopNode with offset out of range (!)");
fOffset = 1.0;
}
aVector.emplace_back(
fOffset,
pStyle->getStopColor(),
pStyle->getStopOpacity().solve(*this));
}
else
{
OSL_ENSURE(false, "OOps, SvgGradientStopNode without Style (!)");
}
}
}
}
}
const SvgNumber SvgGradientNode::getX1() const
{
if(maX1.isSet())
{
return maX1;
}
const_cast< SvgGradientNode* >(this)->tryToFindLink();
if (mpXLink && !mbResolvingLink)
{
mbResolvingLink = true;
auto ret = mpXLink->getX1();
mbResolvingLink = false;
return ret;
}
// default is 0%
return SvgNumber(0.0, Unit_percent);
}
const SvgNumber SvgGradientNode::getY1() const
{
if(maY1.isSet())
{
return maY1;
}
const_cast< SvgGradientNode* >(this)->tryToFindLink();
if (mpXLink && !mbResolvingLink)
{
mbResolvingLink = true;
auto ret = mpXLink->getY1();
mbResolvingLink = false;
return ret;
}
// default is 0%
return SvgNumber(0.0, Unit_percent);
}
const SvgNumber SvgGradientNode::getX2() const
{
if(maX2.isSet())
{
return maX2;
}
const_cast< SvgGradientNode* >(this)->tryToFindLink();
if (mpXLink && !mbResolvingLink)
{
mbResolvingLink = true;
auto ret = mpXLink->getX2();
mbResolvingLink = false;
return ret;
}
// default is 100%
return SvgNumber(100.0, Unit_percent);
}
const SvgNumber SvgGradientNode::getY2() const
{
if(maY2.isSet())
{
return maY2;
}
const_cast< SvgGradientNode* >(this)->tryToFindLink();
if (mpXLink && !mbResolvingLink)
{
mbResolvingLink = true;
auto ret = mpXLink->getY2();
mbResolvingLink = false;
return ret;
}
// default is 0%
return SvgNumber(0.0, Unit_percent);
}
const SvgNumber SvgGradientNode::getCx() const
{
if(maCx.isSet())
{
return maCx;
}
const_cast< SvgGradientNode* >(this)->tryToFindLink();
if (mpXLink && !mbResolvingLink)
{
mbResolvingLink = true;
auto ret = mpXLink->getCx();
mbResolvingLink = false;
return ret;
}
// default is 50%
return SvgNumber(50.0, Unit_percent);
}
const SvgNumber SvgGradientNode::getCy() const
{
if(maCy.isSet())
{
return maCy;
}
const_cast< SvgGradientNode* >(this)->tryToFindLink();
if (mpXLink && !mbResolvingLink)
{
mbResolvingLink = true;
auto ret = mpXLink->getCy();
mbResolvingLink = false;
return ret;
}
// default is 50%
return SvgNumber(50.0, Unit_percent);
}
const SvgNumber SvgGradientNode::getR() const
{
if(maR.isSet())
{
return maR;
}
const_cast< SvgGradientNode* >(this)->tryToFindLink();
if (mpXLink && !mbResolvingLink)
{
mbResolvingLink = true;
auto ret = mpXLink->getR();
mbResolvingLink = false;
return ret;
}
// default is 50%
return SvgNumber(50.0, Unit_percent);
}
const SvgNumber* SvgGradientNode::getFx() const
{
if(maFx.isSet())
{
return &maFx;
}
const_cast< SvgGradientNode* >(this)->tryToFindLink();
if (mpXLink && !mbResolvingLink)
{
mbResolvingLink = true;
auto ret = mpXLink->getFx();
mbResolvingLink = false;
return ret;
}
return nullptr;
}
const SvgNumber* SvgGradientNode::getFy() const
{
if(maFy.isSet())
{
return &maFy;
}
const_cast< SvgGradientNode* >(this)->tryToFindLink();
if (mpXLink && !mbResolvingLink)
{
mbResolvingLink = true;
auto ret = mpXLink->getFy();
mbResolvingLink = false;
return ret;
}
return nullptr;
}
const basegfx::B2DHomMatrix* SvgGradientNode::getGradientTransform() const
{
if(mpaGradientTransform)
{
return mpaGradientTransform.get();
}
const_cast< SvgGradientNode* >(this)->tryToFindLink();
if (mpXLink && !mbResolvingLink)
{
mbResolvingLink = true;
auto ret = mpXLink->getGradientTransform();
mbResolvingLink = false;
return ret;
}
return nullptr;
}
void SvgGradientNode::setGradientTransform(const basegfx::B2DHomMatrix* pMatrix)
{
mpaGradientTransform.reset();
if(pMatrix)
{
mpaGradientTransform.reset(new basegfx::B2DHomMatrix(*pMatrix) );
}
}
} // end of namespace svgreader
} // end of namespace svgio
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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