/* -*- 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/DOMQuad.h" #include "mozilla/dom/DOMQuadBinding.h" #include "mozilla/dom/DOMPoint.h" #include "mozilla/dom/DOMRect.h" #include <algorithm> using namespace mozilla; using namespace mozilla::dom; using namespace mozilla::gfx; NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(DOMQuad, mParent, mBounds, mPoints[0], mPoints[1], mPoints[2], mPoints[3]) NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(DOMQuad, AddRef) NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(DOMQuad, Release) DOMQuad::DOMQuad(nsISupports* aParent, CSSPoint aPoints[4]) : mParent(aParent) { for (uint32_t i = 0; i < 4; ++i) { mPoints[i] = new DOMPoint(aParent, aPoints[i].x, aPoints[i].y); } } DOMQuad::DOMQuad(nsISupports* aParent) : mParent(aParent) { } DOMQuad::~DOMQuad() { } JSObject* DOMQuad::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) { return DOMQuadBinding::Wrap(aCx, this, aGivenProto); } already_AddRefed<DOMQuad> DOMQuad::Constructor(const GlobalObject& aGlobal, const DOMPointInit& aP1, const DOMPointInit& aP2, const DOMPointInit& aP3, const DOMPointInit& aP4, ErrorResult& aRV) { RefPtr<DOMQuad> obj = new DOMQuad(aGlobal.GetAsSupports()); obj->mPoints[0] = DOMPoint::Constructor(aGlobal, aP1, aRV); obj->mPoints[1] = DOMPoint::Constructor(aGlobal, aP2, aRV); obj->mPoints[2] = DOMPoint::Constructor(aGlobal, aP3, aRV); obj->mPoints[3] = DOMPoint::Constructor(aGlobal, aP4, aRV); return obj.forget(); } already_AddRefed<DOMQuad> DOMQuad::Constructor(const GlobalObject& aGlobal, const DOMRectReadOnly& aRect, ErrorResult& aRV) { CSSPoint points[4]; Float x = aRect.X(), y = aRect.Y(), w = aRect.Width(), h = aRect.Height(); points[0] = CSSPoint(x, y); points[1] = CSSPoint(x + w, y); points[2] = CSSPoint(x + w, y + h); points[3] = CSSPoint(x, y + h); RefPtr<DOMQuad> obj = new DOMQuad(aGlobal.GetAsSupports(), points); return obj.forget(); } class DOMQuad::QuadBounds final : public DOMRectReadOnly { public: explicit QuadBounds(DOMQuad* aQuad) : DOMRectReadOnly(aQuad->GetParentObject()) , mQuad(aQuad) {} NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(QuadBounds, DOMRectReadOnly) NS_DECL_ISUPPORTS_INHERITED virtual double X() const override { double x1, x2; GetHorizontalMinMax(&x1, &x2); return x1; } virtual double Y() const override { double y1, y2; GetVerticalMinMax(&y1, &y2); return y1; } virtual double Width() const override { double x1, x2; GetHorizontalMinMax(&x1, &x2); return x2 - x1; } virtual double Height() const override { double y1, y2; GetVerticalMinMax(&y1, &y2); return y2 - y1; } void GetHorizontalMinMax(double* aX1, double* aX2) const { double x1, x2; x1 = x2 = mQuad->Point(0)->X(); for (uint32_t i = 1; i < 4; ++i) { double x = mQuad->Point(i)->X(); x1 = std::min(x1, x); x2 = std::max(x2, x); } *aX1 = x1; *aX2 = x2; } void GetVerticalMinMax(double* aY1, double* aY2) const { double y1, y2; y1 = y2 = mQuad->Point(0)->Y(); for (uint32_t i = 1; i < 4; ++i) { double y = mQuad->Point(i)->Y(); y1 = std::min(y1, y); y2 = std::max(y2, y); } *aY1 = y1; *aY2 = y2; } protected: virtual ~QuadBounds() {} RefPtr<DOMQuad> mQuad; }; NS_IMPL_CYCLE_COLLECTION_INHERITED(DOMQuad::QuadBounds, DOMRectReadOnly, mQuad) NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(DOMQuad::QuadBounds) NS_INTERFACE_MAP_END_INHERITING(DOMRectReadOnly) NS_IMPL_ADDREF_INHERITED(DOMQuad::QuadBounds, DOMRectReadOnly) NS_IMPL_RELEASE_INHERITED(DOMQuad::QuadBounds, DOMRectReadOnly) DOMRectReadOnly* DOMQuad::Bounds() const { if (!mBounds) { mBounds = new QuadBounds(const_cast<DOMQuad*>(this)); } return mBounds; }