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/*
* Copyright (C) Research In Motion Limited 2011. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "SVGFEDropShadowElement.h"
#include "RenderStyle.h"
#include "SVGFilterBuilder.h"
#include "SVGNames.h"
#include "SVGParserUtilities.h"
#include "SVGRenderStyle.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFEDropShadowElement);
// Animated property definitions
DEFINE_ANIMATED_STRING(SVGFEDropShadowElement, SVGNames::inAttr, In1, in1)
DEFINE_ANIMATED_NUMBER(SVGFEDropShadowElement, SVGNames::dxAttr, Dx, dx)
DEFINE_ANIMATED_NUMBER(SVGFEDropShadowElement, SVGNames::dyAttr, Dy, dy)
DEFINE_ANIMATED_NUMBER_MULTIPLE_WRAPPERS(SVGFEDropShadowElement, SVGNames::stdDeviationAttr, stdDeviationXIdentifier(), StdDeviationX, stdDeviationX)
DEFINE_ANIMATED_NUMBER_MULTIPLE_WRAPPERS(SVGFEDropShadowElement, SVGNames::stdDeviationAttr, stdDeviationYIdentifier(), StdDeviationY, stdDeviationY)
BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFEDropShadowElement)
REGISTER_LOCAL_ANIMATED_PROPERTY(in1)
REGISTER_LOCAL_ANIMATED_PROPERTY(dx)
REGISTER_LOCAL_ANIMATED_PROPERTY(dy)
REGISTER_LOCAL_ANIMATED_PROPERTY(stdDeviationX)
REGISTER_LOCAL_ANIMATED_PROPERTY(stdDeviationY)
REGISTER_PARENT_ANIMATED_PROPERTIES(SVGFilterPrimitiveStandardAttributes)
END_REGISTER_ANIMATED_PROPERTIES
inline SVGFEDropShadowElement::SVGFEDropShadowElement(const QualifiedName& tagName, Document& document)
: SVGFilterPrimitiveStandardAttributes(tagName, document)
, m_dx(2)
, m_dy(2)
, m_stdDeviationX(2)
, m_stdDeviationY(2)
{
ASSERT(hasTagName(SVGNames::feDropShadowTag));
registerAnimatedPropertiesForSVGFEDropShadowElement();
}
Ref<SVGFEDropShadowElement> SVGFEDropShadowElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGFEDropShadowElement(tagName, document));
}
const AtomicString& SVGFEDropShadowElement::stdDeviationXIdentifier()
{
static NeverDestroyed<AtomicString> s_identifier("SVGStdDeviationX", AtomicString::ConstructFromLiteral);
return s_identifier;
}
const AtomicString& SVGFEDropShadowElement::stdDeviationYIdentifier()
{
static NeverDestroyed<AtomicString> s_identifier("SVGStdDeviationY", AtomicString::ConstructFromLiteral);
return s_identifier;
}
void SVGFEDropShadowElement::setStdDeviation(float x, float y)
{
setStdDeviationXBaseValue(x);
setStdDeviationYBaseValue(y);
invalidate();
}
void SVGFEDropShadowElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (name == SVGNames::stdDeviationAttr) {
float x, y;
if (parseNumberOptionalNumber(value, x, y)) {
setStdDeviationXBaseValue(x);
setStdDeviationYBaseValue(y);
}
return;
}
if (name == SVGNames::inAttr) {
setIn1BaseValue(value);
return;
}
if (name == SVGNames::dxAttr) {
setDxBaseValue(value.toFloat());
return;
}
if (name == SVGNames::dyAttr) {
setDyBaseValue(value.toFloat());
return;
}
SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
}
void SVGFEDropShadowElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (attrName == SVGNames::inAttr || attrName == SVGNames::stdDeviationAttr || attrName == SVGNames::dxAttr || attrName == SVGNames::dyAttr) {
InstanceInvalidationGuard guard(*this);
invalidate();
return;
}
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
}
RefPtr<FilterEffect> SVGFEDropShadowElement::build(SVGFilterBuilder* filterBuilder, Filter& filter)
{
RenderObject* renderer = this->renderer();
if (!renderer)
return nullptr;
if (stdDeviationX() < 0 || stdDeviationY() < 0)
return nullptr;
const SVGRenderStyle& svgStyle = renderer->style().svgStyle();
const Color& color = svgStyle.floodColor();
float opacity = svgStyle.floodOpacity();
auto input1 = filterBuilder->getEffectById(in1());
if (!input1)
return nullptr;
RefPtr<FilterEffect> effect = FEDropShadow::create(filter, stdDeviationX(), stdDeviationY(), dx(), dy(), color, opacity);
effect->inputEffects().append(input1);
return effect;
}
}