gecko-dev/dom/svg/SVGFECompositeElement.cpp

/* -*- 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/SVGFECompositeElement.h"
#include "mozilla/dom/SVGFECompositeElementBinding.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/BindContext.h"

NS_IMPL_NS_NEW_SVG_ELEMENT(FEComposite)

using namespace mozilla::gfx;

namespace mozilla {
namespace dom {

JSObject* SVGFECompositeElement::WrapNode(JSContext* aCx,
                                          JS::Handle<JSObject*> aGivenProto) {
  return SVGFECompositeElement_Binding::Wrap(aCx, this, aGivenProto);
}

SVGElement::NumberInfo SVGFECompositeElement::sNumberInfo[4] = {
    {nsGkAtoms::k1, 0, false},
    {nsGkAtoms::k2, 0, false},
    {nsGkAtoms::k3, 0, false},
    {nsGkAtoms::k4, 0, false}};

SVGEnumMapping SVGFECompositeElement::sOperatorMap[] = {
    {nsGkAtoms::over, SVG_FECOMPOSITE_OPERATOR_OVER},
    {nsGkAtoms::in, SVG_FECOMPOSITE_OPERATOR_IN},
    {nsGkAtoms::out, SVG_FECOMPOSITE_OPERATOR_OUT},
    {nsGkAtoms::atop, SVG_FECOMPOSITE_OPERATOR_ATOP},
    {nsGkAtoms::xor_, SVG_FECOMPOSITE_OPERATOR_XOR},
    {nsGkAtoms::arithmetic, SVG_FECOMPOSITE_OPERATOR_ARITHMETIC},
    {nsGkAtoms::lighter, SVG_FECOMPOSITE_OPERATOR_LIGHTER},
    {nullptr, 0}};

SVGElement::EnumInfo SVGFECompositeElement::sEnumInfo[1] = {
    {nsGkAtoms::_operator, sOperatorMap, SVG_FECOMPOSITE_OPERATOR_OVER}};

SVGElement::StringInfo SVGFECompositeElement::sStringInfo[3] = {
    {nsGkAtoms::result, kNameSpaceID_None, true},
    {nsGkAtoms::in, kNameSpaceID_None, true},
    {nsGkAtoms::in2, kNameSpaceID_None, true}};

//----------------------------------------------------------------------
// nsINode methods

NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFECompositeElement)

already_AddRefed<DOMSVGAnimatedString> SVGFECompositeElement::In1() {
  return mStringAttributes[IN1].ToDOMAnimatedString(this);
}

already_AddRefed<DOMSVGAnimatedString> SVGFECompositeElement::In2() {
  return mStringAttributes[IN2].ToDOMAnimatedString(this);
}

already_AddRefed<DOMSVGAnimatedEnumeration> SVGFECompositeElement::Operator() {
  return mEnumAttributes[OPERATOR].ToDOMAnimatedEnum(this);
}

already_AddRefed<DOMSVGAnimatedNumber> SVGFECompositeElement::K1() {
  return mNumberAttributes[ATTR_K1].ToDOMAnimatedNumber(this);
}

already_AddRefed<DOMSVGAnimatedNumber> SVGFECompositeElement::K2() {
  return mNumberAttributes[ATTR_K2].ToDOMAnimatedNumber(this);
}

already_AddRefed<DOMSVGAnimatedNumber> SVGFECompositeElement::K3() {
  return mNumberAttributes[ATTR_K3].ToDOMAnimatedNumber(this);
}

already_AddRefed<DOMSVGAnimatedNumber> SVGFECompositeElement::K4() {
  return mNumberAttributes[ATTR_K4].ToDOMAnimatedNumber(this);
}

void SVGFECompositeElement::SetK(float k1, float k2, float k3, float k4) {
  mNumberAttributes[ATTR_K1].SetBaseValue(k1, this);
  mNumberAttributes[ATTR_K2].SetBaseValue(k2, this);
  mNumberAttributes[ATTR_K3].SetBaseValue(k3, this);
  mNumberAttributes[ATTR_K4].SetBaseValue(k4, this);
}

FilterPrimitiveDescription SVGFECompositeElement::GetPrimitiveDescription(
    SVGFilterInstance* aInstance, const IntRect& aFilterSubregion,
    const nsTArray<bool>& aInputsAreTainted,
    nsTArray<RefPtr<SourceSurface>>& aInputImages) {
  CompositeAttributes atts;
  uint32_t op = mEnumAttributes[OPERATOR].GetAnimValue();
  atts.mOperator = op;

  if (op == SVG_FECOMPOSITE_OPERATOR_ARITHMETIC) {
    float k[4];
    GetAnimatedNumberValues(k, k + 1, k + 2, k + 3, nullptr);
    atts.mCoefficients.AppendElements(k, 4);
  }

  return FilterPrimitiveDescription(AsVariant(std::move(atts)));
}

bool SVGFECompositeElement::AttributeAffectsRendering(
    int32_t aNameSpaceID, nsAtom* aAttribute) const {
  return SVGFECompositeElementBase::AttributeAffectsRendering(aNameSpaceID,
                                                              aAttribute) ||
         (aNameSpaceID == kNameSpaceID_None &&
          (aAttribute == nsGkAtoms::in || aAttribute == nsGkAtoms::in2 ||
           aAttribute == nsGkAtoms::k1 || aAttribute == nsGkAtoms::k2 ||
           aAttribute == nsGkAtoms::k3 || aAttribute == nsGkAtoms::k4 ||
           aAttribute == nsGkAtoms::_operator));
}

void SVGFECompositeElement::GetSourceImageNames(
    nsTArray<SVGStringInfo>& aSources) {
  aSources.AppendElement(SVGStringInfo(&mStringAttributes[IN1], this));
  aSources.AppendElement(SVGStringInfo(&mStringAttributes[IN2], this));
}

nsresult SVGFECompositeElement::BindToTree(BindContext& aCtx,
                                           nsINode& aParent) {
  if (aCtx.InComposedDoc()) {
    aCtx.OwnerDoc().SetUseCounter(eUseCounter_custom_feComposite);
  }

  return SVGFE::BindToTree(aCtx, aParent);
}

//----------------------------------------------------------------------
// SVGElement methods

SVGElement::NumberAttributesInfo SVGFECompositeElement::GetNumberInfo() {
  return NumberAttributesInfo(mNumberAttributes, sNumberInfo,
                              ArrayLength(sNumberInfo));
}

SVGElement::EnumAttributesInfo SVGFECompositeElement::GetEnumInfo() {
  return EnumAttributesInfo(mEnumAttributes, sEnumInfo, ArrayLength(sEnumInfo));
}

SVGElement::StringAttributesInfo SVGFECompositeElement::GetStringInfo() {
  return StringAttributesInfo(mStringAttributes, sStringInfo,
                              ArrayLength(sStringInfo));
}

}  // namespace dom
}  // namespace mozilla