gecko-dev/dom/svg/SVGLineElement.h

66 строки
2.4 KiB
C++

/* -*- 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 "nsSVGPathGeometryElement.h"
#include "nsSVGLength2.h"
nsresult NS_NewSVGLineElement(nsIContent **aResult,
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
namespace mozilla {
namespace dom {
typedef nsSVGPathGeometryElement 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 nsIAtom* name) const override;
// nsSVGPathGeometryElement 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& aTransform) override;
virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, 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