/* -*- 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_SVGLineElement_h

#define mozilla_dom_SVGLineElement_h

#include "SVGGeometryElement.h"

#include "nsSVGLength2.h"

nsresult NS_NewSVGLineElement(nsIContent **aResult,

                              already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);

namespace mozilla {

namespace dom {

typedef SVGGeometryElement SVGLineElementBase;

class SVGLineElement final : public SVGLineElementBase

{

protected:

  explicit SVGLineElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);

  virtual JSObject* WrapNode(JSContext *cx, JS::Handle<JSObject*> aGivenProto) override;

  friend nsresult (::NS_NewSVGLineElement(nsIContent **aResult,

                                          already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo));

  // If the input line has length zero and linecaps aren't butt, adjust |aX2| by

  // a tiny amount to a barely-nonzero-length line that all of our draw targets

  // will render

  void MaybeAdjustForZeroLength(float aX1, float aY1, float& aX2, float aY2);

public:

  // nsIContent interface

  NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* name) const override;

  // SVGGeometryElement methods:

  virtual bool IsMarkable() override { return true; }

  virtual void GetMarkPoints(nsTArray<nsSVGMark> *aMarks) override;

  virtual void GetAsSimplePath(SimplePath* aSimplePath) override;

  virtual already_AddRefed<Path> BuildPath(PathBuilder* aBuilder) override;

  virtual bool GetGeometryBounds(Rect* aBounds, const StrokeOptions& aStrokeOptions,

                                 const Matrix& aToBoundsSpace,

                                 const Matrix* aToNonScalingStrokeSpace = nullptr) override;

  virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;

  // WebIDL

  already_AddRefed<SVGAnimatedLength> X1();

  already_AddRefed<SVGAnimatedLength> Y1();

  already_AddRefed<SVGAnimatedLength> X2();

  already_AddRefed<SVGAnimatedLength> Y2();

protected:

  virtual LengthAttributesInfo GetLengthInfo() override;

  enum { ATTR_X1, ATTR_Y1, ATTR_X2, ATTR_Y2 };

  nsSVGLength2 mLengthAttributes[4];

  static LengthInfo sLengthInfo[4];

};

} // namespace dom

} // namespace mozilla

#endif // mozilla_dom_SVGLineElement_h