dom/svg/SVGFEDisplacementMapElement.h
author Nicholas Nethercote <nnethercote@mozilla.com>
Tue, 03 Oct 2017 09:05:19 +1100
changeset 385076 67a8e12324569dd730347187e2ffccae486c758b
parent 355743 c6af127dce9d85ee8c42b13235b5fa6133d3a0e2
child 430759 36a50c3f679a741a2a3a1ca89b192e8656262d0d
permissions -rw-r--r--
Bug 1400460 - Rename nsIAtom as nsAtom. r=hiro. (Path is actually r=froydnj.) Bug 1400459 devirtualized nsIAtom so that it is no longer a subclass of nsISupports. This means that nsAtom is now a better name for it than nsIAtom. MozReview-Commit-ID: 91U22X2NydP

/* -*- 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/. */

#ifndef mozilla_dom_SVGFEDisplacementMapElement_h
#define mozilla_dom_SVGFEDisplacementMapElement_h

#include "nsSVGEnum.h"
#include "nsSVGFilters.h"

nsresult NS_NewSVGFEDisplacementMapElement(nsIContent **aResult,
                                           already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);

namespace mozilla {
namespace dom {

typedef nsSVGFE SVGFEDisplacementMapElementBase;

class SVGFEDisplacementMapElement : public SVGFEDisplacementMapElementBase
{
protected:
  friend nsresult (::NS_NewSVGFEDisplacementMapElement(nsIContent **aResult,
                                                       already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo));
  explicit SVGFEDisplacementMapElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
    : SVGFEDisplacementMapElementBase(aNodeInfo)
  {
  }
  virtual JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;

public:
  virtual FilterPrimitiveDescription
    GetPrimitiveDescription(nsSVGFilterInstance* aInstance,
                            const IntRect& aFilterSubregion,
                            const nsTArray<bool>& aInputsAreTainted,
                            nsTArray<RefPtr<SourceSurface>>& aInputImages) override;
  virtual bool AttributeAffectsRendering(
          int32_t aNameSpaceID, nsAtom* aAttribute) const override;
  virtual nsSVGString& GetResultImageName() override { return mStringAttributes[RESULT]; }
  virtual void GetSourceImageNames(nsTArray<nsSVGStringInfo>& aSources) override;

  virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult,
                         bool aPreallocateChildren) const override;

  // WebIDL
  already_AddRefed<SVGAnimatedString> In1();
  already_AddRefed<SVGAnimatedString> In2();
  already_AddRefed<SVGAnimatedNumber> Scale();
  already_AddRefed<SVGAnimatedEnumeration> XChannelSelector();
  already_AddRefed<SVGAnimatedEnumeration> YChannelSelector();

protected:
  virtual bool OperatesOnSRGB(int32_t aInputIndex,
                              bool aInputIsAlreadySRGB) override {
    switch (aInputIndex) {
    case 0:
      return aInputIsAlreadySRGB;
    case 1:
      return SVGFEDisplacementMapElementBase::OperatesOnSRGB(aInputIndex, aInputIsAlreadySRGB);
    default:
      NS_ERROR("Will not give correct color model");
      return false;
    }
  }

  virtual NumberAttributesInfo GetNumberInfo() override;
  virtual EnumAttributesInfo GetEnumInfo() override;
  virtual StringAttributesInfo GetStringInfo() override;

  enum { SCALE };
  nsSVGNumber2 mNumberAttributes[1];
  static NumberInfo sNumberInfo[1];

  enum { CHANNEL_X, CHANNEL_Y };
  nsSVGEnum mEnumAttributes[2];
  static nsSVGEnumMapping sChannelMap[];
  static EnumInfo sEnumInfo[2];

  enum { RESULT, IN1, IN2 };
  nsSVGString mStringAttributes[3];
  static StringInfo sStringInfo[3];
};

} // namespace dom
} // namespace mozilla

#endif // mozilla_dom_SVGFEDisplacementMapElement_h