dom/svg/SVGFEComponentTransferElement.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/dom/SVGFEComponentTransferElement.h"
   8
   9 #include "mozilla/dom/SVGComponentTransferFunctionElement.h"
  10 #include "mozilla/dom/SVGFEComponentTransferElementBinding.h"
  11 #include "mozilla/gfx/2D.h"
  12
  13 NS_IMPL_NS_NEW_SVG_ELEMENT(FEComponentTransfer)
  14
  15 using namespace mozilla::gfx;
  16 ;
  17
  18 namespace mozilla {
  19 namespace dom {
  20
  21 JSObject* SVGFEComponentTransferElement::WrapNode(
  22     JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
  23   return SVGFEComponentTransferElement_Binding::Wrap(aCx, this, aGivenProto);
  24 }
  25
  26 SVGElement::StringInfo SVGFEComponentTransferElement::sStringInfo[2] = {
  27     {nsGkAtoms::result, kNameSpaceID_None, true},
  28     {nsGkAtoms::in, kNameSpaceID_None, true}};
  29
  30 //----------------------------------------------------------------------
  31 // nsINode methods
  32
  33 NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEComponentTransferElement)
  34
  35 already_AddRefed<DOMSVGAnimatedString> SVGFEComponentTransferElement::In1() {
  36   return mStringAttributes[IN1].ToDOMAnimatedString(this);
  37 }
  38
  39 //----------------------------------------------------------------------
  40 // SVGElement methods
  41
  42 SVGElement::StringAttributesInfo
  43 SVGFEComponentTransferElement::GetStringInfo() {
  44   return StringAttributesInfo(mStringAttributes, sStringInfo,
  45                               ArrayLength(sStringInfo));
  46 }
  47
  48 //--------------------------------------------
  49
  50 FilterPrimitiveDescription
  51 SVGFEComponentTransferElement::GetPrimitiveDescription(
  52     SVGFilterInstance* aInstance, const IntRect& aFilterSubregion,
  53     const nsTArray<bool>& aInputsAreTainted,
  54     nsTArray<RefPtr<SourceSurface>>& aInputImages) {
  55   RefPtr<SVGComponentTransferFunctionElement> childForChannel[4];
  56
  57   for (nsIContent* childContent = nsINode::GetFirstChild(); childContent;
  58        childContent = childContent->GetNextSibling()) {
  59     RefPtr<SVGComponentTransferFunctionElement> child;
  60     CallQueryInterface(
  61         childContent,
  62         (SVGComponentTransferFunctionElement**)getter_AddRefs(child));
  63     if (child) {
  64       childForChannel[child->GetChannel()] = child;
  65     }
  66   }
  67
  68   ComponentTransferAttributes atts;
  69   for (int32_t i = 0; i < 4; i++) {
  70     if (childForChannel[i]) {
  71       childForChannel[i]->ComputeAttributes(i, atts);
  72     } else {
  73       atts.mTypes[i] = (uint8_t)SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY;
  74     }
  75   }
  76   return FilterPrimitiveDescription(AsVariant(std::move(atts)));
  77 }
  78
  79 bool SVGFEComponentTransferElement::AttributeAffectsRendering(
  80     int32_t aNameSpaceID, nsAtom* aAttribute) const {
  81   return SVGFEComponentTransferElementBase::AttributeAffectsRendering(
  82              aNameSpaceID, aAttribute) ||
  83          (aNameSpaceID == kNameSpaceID_None && aAttribute == nsGkAtoms::in);
  84 }
  85
  86 void SVGFEComponentTransferElement::GetSourceImageNames(
  87     nsTArray<SVGStringInfo>& aSources) {
  88   aSources.AppendElement(SVGStringInfo(&mStringAttributes[IN1], this));
  89 }
  90
  91 }  // namespace dom
  92 }  // namespace mozilla