mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-11-05 02:06:25 +00:00
142 lines
4.0 KiB
C++
142 lines
4.0 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/. */
|
|
|
|
#include "mozilla/dom/SVGCircleElement.h"
|
|
#include "mozilla/gfx/2D.h"
|
|
#include "nsGkAtoms.h"
|
|
#include "mozilla/dom/SVGCircleElementBinding.h"
|
|
|
|
NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(Circle)
|
|
|
|
using namespace mozilla::gfx;
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
JSObject*
|
|
SVGCircleElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
|
|
{
|
|
return SVGCircleElementBinding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
nsSVGElement::LengthInfo SVGCircleElement::sLengthInfo[3] =
|
|
{
|
|
{ &nsGkAtoms::cx, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::X },
|
|
{ &nsGkAtoms::cy, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::Y },
|
|
{ &nsGkAtoms::r, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::XY }
|
|
};
|
|
|
|
//----------------------------------------------------------------------
|
|
// Implementation
|
|
|
|
SVGCircleElement::SVGCircleElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
|
|
: SVGCircleElementBase(aNodeInfo)
|
|
{
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsIDOMNode methods
|
|
|
|
NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGCircleElement)
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
already_AddRefed<SVGAnimatedLength>
|
|
SVGCircleElement::Cx()
|
|
{
|
|
return mLengthAttributes[ATTR_CX].ToDOMAnimatedLength(this);
|
|
}
|
|
|
|
already_AddRefed<SVGAnimatedLength>
|
|
SVGCircleElement::Cy()
|
|
{
|
|
return mLengthAttributes[ATTR_CY].ToDOMAnimatedLength(this);
|
|
}
|
|
|
|
already_AddRefed<SVGAnimatedLength>
|
|
SVGCircleElement::R()
|
|
{
|
|
return mLengthAttributes[ATTR_R].ToDOMAnimatedLength(this);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsSVGElement methods
|
|
|
|
/* virtual */ bool
|
|
SVGCircleElement::HasValidDimensions() const
|
|
{
|
|
return mLengthAttributes[ATTR_R].IsExplicitlySet() &&
|
|
mLengthAttributes[ATTR_R].GetAnimValInSpecifiedUnits() > 0;
|
|
}
|
|
|
|
nsSVGElement::LengthAttributesInfo
|
|
SVGCircleElement::GetLengthInfo()
|
|
{
|
|
return LengthAttributesInfo(mLengthAttributes, sLengthInfo,
|
|
ArrayLength(sLengthInfo));
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsSVGPathGeometryElement methods
|
|
|
|
bool
|
|
SVGCircleElement::GetGeometryBounds(Rect* aBounds,
|
|
const StrokeOptions& aStrokeOptions,
|
|
const Matrix& aToBoundsSpace,
|
|
const Matrix* aToNonScalingStrokeSpace)
|
|
{
|
|
float x, y, r;
|
|
GetAnimatedLengthValues(&x, &y, &r, nullptr);
|
|
|
|
if (r <= 0.f) {
|
|
// Rendering of the element is disabled
|
|
*aBounds = Rect(aToBoundsSpace * Point(x, y), Size());
|
|
return true;
|
|
}
|
|
|
|
if (aToBoundsSpace.IsRectilinear()) {
|
|
// Optimize the case where we can treat the circle as a rectangle and
|
|
// still get tight bounds.
|
|
if (aStrokeOptions.mLineWidth > 0.f) {
|
|
if (aToNonScalingStrokeSpace) {
|
|
if (aToNonScalingStrokeSpace->IsRectilinear()) {
|
|
MOZ_ASSERT(!aToNonScalingStrokeSpace->IsSingular());
|
|
Rect userBounds(x - r, y - r, 2 * r, 2 * r);
|
|
SVGContentUtils::RectilinearGetStrokeBounds(
|
|
userBounds, aToBoundsSpace, *aToNonScalingStrokeSpace,
|
|
aStrokeOptions.mLineWidth, aBounds);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
r += aStrokeOptions.mLineWidth / 2.f;
|
|
}
|
|
Rect rect(x - r, y - r, 2 * r, 2 * r);
|
|
*aBounds = aToBoundsSpace.TransformBounds(rect);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
already_AddRefed<Path>
|
|
SVGCircleElement::BuildPath(PathBuilder* aBuilder)
|
|
{
|
|
float x, y, r;
|
|
GetAnimatedLengthValues(&x, &y, &r, nullptr);
|
|
|
|
if (r <= 0.0f) {
|
|
return nullptr;
|
|
}
|
|
|
|
aBuilder->Arc(Point(x, y), r, 0, Float(2*M_PI));
|
|
|
|
return aBuilder->Finish();
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|