/* -*- 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 <drawinglayer/primitive2d/Primitive2DContainer.hxx>
#include <drawinglayer/primitive2d/shadowprimitive2d.hxx>
#include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <svgfedropshadownode.hxx>
#include <o3tl/string_view.hxx>
namespace svgio::svgreader
{
SvgFeDropShadowNode::SvgFeDropShadowNode(SvgDocument& rDocument, SvgNode* pParent)
: SvgFilterNode(SVGToken::FeDropShadow, rDocument, pParent)
, maDx(0 .0 )
, maDy(0 .0 )
, maStdDeviation(0 .0 )
, maFloodColor(SvgPaint())
, maFloodOpacity(1 .0 )
{
}
SvgFeDropShadowNode::~SvgFeDropShadowNode() {}
void SvgFeDropShadowNode::parseAttribute(SVGToken aSVGToken, const OUString& aContent)
{
// parse own
switch (aSVGToken)
{
case SVGToken::Style:
{
readLocalCssStyle(aContent);
break ;
}
case SVGToken::In:
{
maIn = aContent.trim();
break ;
}
case SVGToken::Result:
{
maResult = aContent.trim();
break ;
}
case SVGToken::Dx:
{
SvgNumber aNum;
if (readSingleNumber(aContent, aNum))
{
maDx = aNum;
}
break ;
}
case SVGToken::Dy:
{
SvgNumber aNum;
if (readSingleNumber(aContent, aNum))
{
maDy = aNum;
}
break ;
}
case SVGToken::StdDeviation:
{
SvgNumber aNum;
if (readSingleNumber(aContent, aNum))
{
maStdDeviation = aNum;
}
break ;
}
case SVGToken::FloodColor:
{
SvgPaint aSvgPaint;
OUString aURL;
SvgNumber aOpacity;
if (readSvgPaint(aContent, aSvgPaint, aURL, aOpacity))
{
maFloodColor = aSvgPaint;
}
break ;
}
case SVGToken::FloodOpacity:
{
SvgNumber aNum;
if (readSingleNumber(aContent, aNum))
{
maFloodOpacity = SvgNumber(std::clamp(aNum.getNumber(), 0 .0 , 1 .0 ), aNum.getUnit(),
aNum.isSet());
}
break ;
}
default :
{
break ;
}
}
}
void SvgFeDropShadowNode::apply(drawinglayer::primitive2d::Primitive2DContainer& rTarget,
const SvgFilterNode* pParent) const
{
if (const drawinglayer::primitive2d::Primitive2DContainer* rSource
= pParent->findGraphicSource(maIn))
{
rTarget = *rSource;
}
basegfx::B2DHomMatrix aTransform;
if (maDx.isSet() || maDy.isSet())
{
aTransform.translate(maDx.solve(*this , NumberType::xcoordinate),
maDy.solve(*this , NumberType::ycoordinate));
}
drawinglayer::primitive2d::Primitive2DContainer aTempTarget;
// Create the shadow
aTempTarget.append(new drawinglayer::primitive2d::ShadowPrimitive2D(
aTransform, maFloodColor.getBColor(), maStdDeviation.getNumber(),
drawinglayer::primitive2d::Primitive2DContainer(rTarget)));
const double fOpacity(maFloodOpacity.solve(*this ));
if (basegfx::fTools::less(fOpacity, 1 .0 ))
{
// Apply transparence to the shadow
aTempTarget.append(new drawinglayer::primitive2d::UnifiedTransparencePrimitive2D(
std::move(aTempTarget), 1 .0 - fOpacity));
}
// Append the original target
aTempTarget.append(rTarget);
rTarget = std::move(aTempTarget);
pParent->addGraphicSourceToMapper(maResult, rTarget);
}
} // end of namespace svgio::svgreader
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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