Source code
Revision control
Copy as Markdown
Other Tools
/* -*- 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
#include "mozilla/dom/SVGMarkerElement.h"
#include "nsGkAtoms.h"
#include "DOMSVGAngle.h"
#include "SVGAnimatedPreserveAspectRatio.h"
#include "nsError.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/dom/SVGGeometryElement.h"
#include "mozilla/dom/SVGLengthBinding.h"
#include "mozilla/dom/SVGMarkerElementBinding.h"
#include "mozilla/gfx/Matrix.h"
#include "mozilla/FloatingPoint.h"
#include "mozilla/RefPtr.h"
#include "SVGContentUtils.h"
using namespace mozilla::gfx;
using namespace mozilla::dom::SVGMarkerElement_Binding;
NS_IMPL_NS_NEW_SVG_ELEMENT(Marker)
namespace mozilla::dom {
using namespace SVGAngle_Binding;
JSObject* SVGMarkerElement::WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return SVGMarkerElement_Binding::Wrap(aCx, this, aGivenProto);
}
SVGElement::LengthInfo SVGMarkerElement::sLengthInfo[4] = {
{nsGkAtoms::refX, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
SVGContentUtils::X},
{nsGkAtoms::refY, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
SVGContentUtils::Y},
{nsGkAtoms::markerWidth, 3, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
SVGContentUtils::X},
{nsGkAtoms::markerHeight, 3, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
SVGContentUtils::Y},
};
SVGEnumMapping SVGMarkerElement::sUnitsMap[] = {
{nsGkAtoms::strokeWidth, SVG_MARKERUNITS_STROKEWIDTH},
{nsGkAtoms::userSpaceOnUse, SVG_MARKERUNITS_USERSPACEONUSE},
{nullptr, 0}};
SVGElement::EnumInfo SVGMarkerElement::sEnumInfo[1] = {
{nsGkAtoms::markerUnits, sUnitsMap, SVG_MARKERUNITS_STROKEWIDTH}};
//----------------------------------------------------------------------
// Implementation
SVGMarkerElement::SVGMarkerElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
: SVGMarkerElementBase(std::move(aNodeInfo)), mCoordCtx(nullptr) {}
//----------------------------------------------------------------------
// nsINode methods
NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGMarkerElement)
//----------------------------------------------------------------------
already_AddRefed<SVGAnimatedRect> SVGMarkerElement::ViewBox() {
return mViewBox.ToSVGAnimatedRect(this);
}
already_AddRefed<DOMSVGAnimatedPreserveAspectRatio>
SVGMarkerElement::PreserveAspectRatio() {
return mPreserveAspectRatio.ToDOMAnimatedPreserveAspectRatio(this);
}
//----------------------------------------------------------------------
already_AddRefed<DOMSVGAnimatedLength> SVGMarkerElement::RefX() {
return mLengthAttributes[REFX].ToDOMAnimatedLength(this);
}
already_AddRefed<DOMSVGAnimatedLength> SVGMarkerElement::RefY() {
return mLengthAttributes[REFY].ToDOMAnimatedLength(this);
}
already_AddRefed<DOMSVGAnimatedEnumeration> SVGMarkerElement::MarkerUnits() {
return mEnumAttributes[MARKERUNITS].ToDOMAnimatedEnum(this);
}
already_AddRefed<DOMSVGAnimatedLength> SVGMarkerElement::MarkerWidth() {
return mLengthAttributes[MARKERWIDTH].ToDOMAnimatedLength(this);
}
already_AddRefed<DOMSVGAnimatedLength> SVGMarkerElement::MarkerHeight() {
return mLengthAttributes[MARKERHEIGHT].ToDOMAnimatedLength(this);
}
already_AddRefed<DOMSVGAnimatedEnumeration> SVGMarkerElement::OrientType() {
return mOrient.ToDOMAnimatedEnum(this);
}
already_AddRefed<DOMSVGAnimatedAngle> SVGMarkerElement::OrientAngle() {
return mOrient.ToDOMAnimatedAngle(this);
}
void SVGMarkerElement::SetOrientToAuto() {
mOrient.SetBaseType(SVG_MARKER_ORIENT_AUTO, this, IgnoreErrors());
}
void SVGMarkerElement::SetOrientToAngle(DOMSVGAngle& aAngle) {
nsAutoString angle;
aAngle.GetValueAsString(angle);
mOrient.SetBaseValueString(angle, this, true);
}
//----------------------------------------------------------------------
// SVGElement methods
void SVGMarkerElement::SetParentCoordCtxProvider(SVGViewportElement* aContext) {
mCoordCtx = aContext;
mViewBoxToViewportTransform = nullptr;
}
/* virtual */
bool SVGMarkerElement::HasValidDimensions() const {
return (!mLengthAttributes[MARKERWIDTH].IsExplicitlySet() ||
mLengthAttributes[MARKERWIDTH].GetAnimValInSpecifiedUnits() > 0) &&
(!mLengthAttributes[MARKERHEIGHT].IsExplicitlySet() ||
mLengthAttributes[MARKERHEIGHT].GetAnimValInSpecifiedUnits() > 0);
}
SVGElement::LengthAttributesInfo SVGMarkerElement::GetLengthInfo() {
return LengthAttributesInfo(mLengthAttributes, sLengthInfo,
ArrayLength(sLengthInfo));
}
SVGElement::EnumAttributesInfo SVGMarkerElement::GetEnumInfo() {
return EnumAttributesInfo(mEnumAttributes, sEnumInfo, ArrayLength(sEnumInfo));
}
SVGAnimatedOrient* SVGMarkerElement::GetAnimatedOrient() { return &mOrient; }
SVGAnimatedViewBox* SVGMarkerElement::GetAnimatedViewBox() { return &mViewBox; }
SVGAnimatedPreserveAspectRatio*
SVGMarkerElement::GetAnimatedPreserveAspectRatio() {
return &mPreserveAspectRatio;
}
//----------------------------------------------------------------------
// public helpers
gfx::Matrix SVGMarkerElement::GetMarkerTransform(float aStrokeWidth,
const SVGMark& aMark) {
float scale =
mEnumAttributes[MARKERUNITS].GetAnimValue() == SVG_MARKERUNITS_STROKEWIDTH
? aStrokeWidth
: 1.0f;
float angle;
switch (mOrient.GetAnimType()) {
case SVG_MARKER_ORIENT_AUTO:
angle = aMark.angle;
break;
case SVG_MARKER_ORIENT_AUTO_START_REVERSE:
angle = aMark.angle + (aMark.type == SVGMark::eStart ? M_PI : 0.0f);
break;
default: // SVG_MARKER_ORIENT_ANGLE
angle = mOrient.GetAnimValue() * M_PI / 180.0f;
break;
}
return gfx::Matrix(cos(angle) * scale, sin(angle) * scale,
-sin(angle) * scale, cos(angle) * scale, aMark.x, aMark.y);
}
SVGViewBox SVGMarkerElement::GetViewBox() {
if (mViewBox.HasRect()) {
return mViewBox.GetAnimValue();
}
return SVGViewBox(0, 0,
mLengthAttributes[MARKERWIDTH].GetAnimValue(mCoordCtx),
mLengthAttributes[MARKERHEIGHT].GetAnimValue(mCoordCtx));
}
gfx::Matrix SVGMarkerElement::GetViewBoxTransform() {
if (!mViewBoxToViewportTransform) {
float viewportWidth =
mLengthAttributes[MARKERWIDTH].GetAnimValue(mCoordCtx);
float viewportHeight =
mLengthAttributes[MARKERHEIGHT].GetAnimValue(mCoordCtx);
SVGViewBox viewbox = GetViewBox();
MOZ_ASSERT(viewbox.width > 0.0f && viewbox.height > 0.0f,
"Rendering should be disabled");
gfx::Matrix viewBoxTM = SVGContentUtils::GetViewBoxTransform(
viewportWidth, viewportHeight, viewbox.x, viewbox.y, viewbox.width,
viewbox.height, mPreserveAspectRatio);
float refX = mLengthAttributes[REFX].GetAnimValue(mCoordCtx);
float refY = mLengthAttributes[REFY].GetAnimValue(mCoordCtx);
gfx::Point ref = viewBoxTM.TransformPoint(gfx::Point(refX, refY));
Matrix TM = viewBoxTM;
TM.PostTranslate(-ref.x, -ref.y);
mViewBoxToViewportTransform = MakeUnique<gfx::Matrix>(TM);
}
return *mViewBoxToViewportTransform;
}
} // namespace mozilla::dom