dom/svg/SVGLineElement.h

   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 #ifndef DOM_SVG_SVGLINEELEMENT_H_
   8 #define DOM_SVG_SVGLINEELEMENT_H_
   9
  10 #include "SVGAnimatedLength.h"
  11 #include "SVGGeometryElement.h"
  12
  13 nsresult NS_NewSVGLineElement(
  14     nsIContent** aResult, already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
  15
  16 namespace mozilla::dom {
  17
  18 using SVGLineElementBase = SVGGeometryElement;
  19
  20 class SVGLineElement final : public SVGLineElementBase {
  21  protected:
  22   explicit SVGLineElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
  23   JSObject* WrapNode(JSContext* cx, JS::Handle<JSObject*> aGivenProto) override;
  24   friend nsresult(::NS_NewSVGLineElement(
  25       nsIContent** aResult,
  26       already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo));
  27   // If the input line has length zero and linecaps aren't butt, adjust |aX2| by
  28   // a tiny amount to a barely-nonzero-length line that all of our draw targets
  29   // will render
  30   void MaybeAdjustForZeroLength(float aX1, float aY1, float& aX2, float aY2);
  31
  32  public:
  33   // SVGGeometryElement methods:
  34   bool IsMarkable() override { return true; }
  35   void GetMarkPoints(nsTArray<SVGMark>* aMarks) override;
  36   void GetAsSimplePath(SimplePath* aSimplePath) override;
  37   already_AddRefed<Path> BuildPath(PathBuilder* aBuilder) override;
  38   bool GetGeometryBounds(
  39       Rect* aBounds, const StrokeOptions& aStrokeOptions,
  40       const Matrix& aToBoundsSpace,
  41       const Matrix* aToNonScalingStrokeSpace = nullptr) override;
  42
  43   nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
  44
  45   // WebIDL
  46   already_AddRefed<DOMSVGAnimatedLength> X1();
  47   already_AddRefed<DOMSVGAnimatedLength> Y1();
  48   already_AddRefed<DOMSVGAnimatedLength> X2();
  49   already_AddRefed<DOMSVGAnimatedLength> Y2();
  50
  51  protected:
  52   LengthAttributesInfo GetLengthInfo() override;
  53
  54   enum { ATTR_X1, ATTR_Y1, ATTR_X2, ATTR_Y2 };
  55   SVGAnimatedLength mLengthAttributes[4];
  56   static LengthInfo sLengthInfo[4];
  57 };
  58
  59 }  // namespace mozilla::dom
  60
  61 #endif  // DOM_SVG_SVGLINEELEMENT_H_