зеркало из https://github.com/mozilla/gecko-dev.git
136 строки
3.5 KiB
C++
136 строки
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/DOMQuad.h"
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#include "mozilla/dom/DOMQuadBinding.h"
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#include "mozilla/dom/DOMPoint.h"
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#include "mozilla/dom/DOMRect.h"
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#include <algorithm>
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using namespace mozilla;
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using namespace mozilla::dom;
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using namespace mozilla::gfx;
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(DOMQuad, mParent, mBounds, mPoints[0],
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mPoints[1], mPoints[2], mPoints[3])
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NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(DOMQuad, AddRef)
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NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(DOMQuad, Release)
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DOMQuad::DOMQuad(nsISupports* aParent, CSSPoint aPoints[4])
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: mParent(aParent)
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{
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for (uint32_t i = 0; i < 4; ++i) {
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mPoints[i] = new DOMPoint(aParent, aPoints[i].x, aPoints[i].y);
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}
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}
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DOMQuad::DOMQuad(nsISupports* aParent)
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: mParent(aParent)
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{
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}
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DOMQuad::~DOMQuad()
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{
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}
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JSObject*
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DOMQuad::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return DOMQuad_Binding::Wrap(aCx, this, aGivenProto);
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}
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already_AddRefed<DOMQuad>
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DOMQuad::Constructor(const GlobalObject& aGlobal,
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const DOMPointInit& aP1,
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const DOMPointInit& aP2,
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const DOMPointInit& aP3,
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const DOMPointInit& aP4,
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ErrorResult& aRV)
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{
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RefPtr<DOMQuad> obj = new DOMQuad(aGlobal.GetAsSupports());
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obj->mPoints[0] = DOMPoint::FromPoint(aGlobal, aP1);
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obj->mPoints[1] = DOMPoint::FromPoint(aGlobal, aP2);
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obj->mPoints[2] = DOMPoint::FromPoint(aGlobal, aP3);
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obj->mPoints[3] = DOMPoint::FromPoint(aGlobal, aP4);
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return obj.forget();
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}
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already_AddRefed<DOMQuad>
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DOMQuad::Constructor(const GlobalObject& aGlobal, const DOMRectReadOnly& aRect,
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ErrorResult& aRV)
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{
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CSSPoint points[4];
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Float x = aRect.X(), y = aRect.Y(), w = aRect.Width(), h = aRect.Height();
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points[0] = CSSPoint(x, y);
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points[1] = CSSPoint(x + w, y);
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points[2] = CSSPoint(x + w, y + h);
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points[3] = CSSPoint(x, y + h);
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RefPtr<DOMQuad> obj = new DOMQuad(aGlobal.GetAsSupports(), points);
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return obj.forget();
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}
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void
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DOMQuad::GetHorizontalMinMax(double* aX1, double* aX2) const
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{
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double x1, x2;
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x1 = x2 = Point(0)->X();
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for (uint32_t i = 1; i < 4; ++i) {
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double x = Point(i)->X();
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x1 = std::min(x1, x);
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x2 = std::max(x2, x);
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}
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*aX1 = x1;
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*aX2 = x2;
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}
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void
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DOMQuad::GetVerticalMinMax(double* aY1, double* aY2) const
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{
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double y1, y2;
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y1 = y2 = Point(0)->Y();
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for (uint32_t i = 1; i < 4; ++i) {
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double y = Point(i)->Y();
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y1 = std::min(y1, y);
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y2 = std::max(y2, y);
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}
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*aY1 = y1;
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*aY2 = y2;
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}
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DOMRectReadOnly*
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DOMQuad::Bounds()
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{
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if (!mBounds) {
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mBounds = GetBounds();
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}
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return mBounds;
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}
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already_AddRefed<DOMRectReadOnly>
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DOMQuad::GetBounds() const
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{
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double x1, x2;
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double y1, y2;
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GetHorizontalMinMax(&x1, &x2);
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GetVerticalMinMax(&y1, &y2);
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RefPtr<DOMRectReadOnly> rval = new DOMRectReadOnly(GetParentObject(),
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x1, y1, x2 - x1, y2 - y1);
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return rval.forget();
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}
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void
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DOMQuad::ToJSON(DOMQuadJSON& aInit)
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{
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aInit.mP1.Construct(RefPtr<DOMPoint>(P1()).forget());
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aInit.mP2.Construct(RefPtr<DOMPoint>(P2()).forget());
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aInit.mP3.Construct(RefPtr<DOMPoint>(P3()).forget());
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aInit.mP4.Construct(RefPtr<DOMPoint>(P4()).forget());
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}
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