gecko/dom/svg/SVGFEMorphologyElement.cpp
2015-05-03 15:32:37 -04:00

167 lines
5.2 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#include "mozilla/dom/SVGFEMorphologyElement.h"
#include "mozilla/dom/SVGFEMorphologyElementBinding.h"
#include "nsSVGFilterInstance.h"
NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(FEMorphology)
using namespace mozilla::gfx;
namespace mozilla {
namespace dom {
JSObject*
SVGFEMorphologyElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return SVGFEMorphologyElementBinding::Wrap(aCx, this, aGivenProto);
}
nsSVGElement::NumberPairInfo SVGFEMorphologyElement::sNumberPairInfo[1] =
{
{ &nsGkAtoms::radius, 0, 0 }
};
nsSVGEnumMapping SVGFEMorphologyElement::sOperatorMap[] = {
{&nsGkAtoms::erode, SVG_OPERATOR_ERODE},
{&nsGkAtoms::dilate, SVG_OPERATOR_DILATE},
{nullptr, 0}
};
nsSVGElement::EnumInfo SVGFEMorphologyElement::sEnumInfo[1] =
{
{ &nsGkAtoms::_operator,
sOperatorMap,
SVG_OPERATOR_ERODE
}
};
nsSVGElement::StringInfo SVGFEMorphologyElement::sStringInfo[2] =
{
{ &nsGkAtoms::result, kNameSpaceID_None, true },
{ &nsGkAtoms::in, kNameSpaceID_None, true }
};
//----------------------------------------------------------------------
// nsIDOMNode methods
NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEMorphologyElement)
//----------------------------------------------------------------------
// SVGFEMorphologyElement methods
already_AddRefed<SVGAnimatedString>
SVGFEMorphologyElement::In1()
{
return mStringAttributes[IN1].ToDOMAnimatedString(this);
}
already_AddRefed<SVGAnimatedEnumeration>
SVGFEMorphologyElement::Operator()
{
return mEnumAttributes[OPERATOR].ToDOMAnimatedEnum(this);
}
already_AddRefed<SVGAnimatedNumber>
SVGFEMorphologyElement::RadiusX()
{
return mNumberPairAttributes[RADIUS].ToDOMAnimatedNumber(nsSVGNumberPair::eFirst, this);
}
already_AddRefed<SVGAnimatedNumber>
SVGFEMorphologyElement::RadiusY()
{
return mNumberPairAttributes[RADIUS].ToDOMAnimatedNumber(nsSVGNumberPair::eSecond, this);
}
void
SVGFEMorphologyElement::SetRadius(float rx, float ry)
{
mNumberPairAttributes[RADIUS].SetBaseValues(rx, ry, this);
}
void
SVGFEMorphologyElement::GetSourceImageNames(nsTArray<nsSVGStringInfo>& aSources)
{
aSources.AppendElement(nsSVGStringInfo(&mStringAttributes[IN1], this));
}
#define MORPHOLOGY_EPSILON 0.0001
void
SVGFEMorphologyElement::GetRXY(int32_t *aRX, int32_t *aRY,
const nsSVGFilterInstance& aInstance)
{
// Subtract an epsilon here because we don't want a value that's just
// slightly larger than an integer to round up to the next integer; it's
// probably meant to be the integer it's close to, modulo machine precision
// issues.
*aRX = NSToIntCeil(aInstance.GetPrimitiveNumber(SVGContentUtils::X,
&mNumberPairAttributes[RADIUS],
nsSVGNumberPair::eFirst) -
MORPHOLOGY_EPSILON);
*aRY = NSToIntCeil(aInstance.GetPrimitiveNumber(SVGContentUtils::Y,
&mNumberPairAttributes[RADIUS],
nsSVGNumberPair::eSecond) -
MORPHOLOGY_EPSILON);
}
FilterPrimitiveDescription
SVGFEMorphologyElement::GetPrimitiveDescription(nsSVGFilterInstance* aInstance,
const IntRect& aFilterSubregion,
const nsTArray<bool>& aInputsAreTainted,
nsTArray<RefPtr<SourceSurface>>& aInputImages)
{
int32_t rx, ry;
GetRXY(&rx, &ry, *aInstance);
FilterPrimitiveDescription descr(PrimitiveType::Morphology);
descr.Attributes().Set(eMorphologyRadii, Size(rx, ry));
descr.Attributes().Set(eMorphologyOperator,
(uint32_t)mEnumAttributes[OPERATOR].GetAnimValue());
return descr;
}
bool
SVGFEMorphologyElement::AttributeAffectsRendering(int32_t aNameSpaceID,
nsIAtom* aAttribute) const
{
return SVGFEMorphologyElementBase::AttributeAffectsRendering(aNameSpaceID, aAttribute) ||
(aNameSpaceID == kNameSpaceID_None &&
(aAttribute == nsGkAtoms::in ||
aAttribute == nsGkAtoms::radius ||
aAttribute == nsGkAtoms::_operator));
}
//----------------------------------------------------------------------
// nsSVGElement methods
nsSVGElement::NumberPairAttributesInfo
SVGFEMorphologyElement::GetNumberPairInfo()
{
return NumberPairAttributesInfo(mNumberPairAttributes, sNumberPairInfo,
ArrayLength(sNumberPairInfo));
}
nsSVGElement::EnumAttributesInfo
SVGFEMorphologyElement::GetEnumInfo()
{
return EnumAttributesInfo(mEnumAttributes, sEnumInfo,
ArrayLength(sEnumInfo));
}
nsSVGElement::StringAttributesInfo
SVGFEMorphologyElement::GetStringInfo()
{
return StringAttributesInfo(mStringAttributes, sStringInfo,
ArrayLength(sStringInfo));
}
} // namespace dom
} // namespace mozilla