/* -*- 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 DOMQuad_Binding::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::FromPoint(aGlobal, aP1);

  obj->mPoints[1] = DOMPoint::FromPoint(aGlobal, aP2);

  obj->mPoints[2] = DOMPoint::FromPoint(aGlobal, aP3);

  obj->mPoints[3] = DOMPoint::FromPoint(aGlobal, aP4);

  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();

}

void

DOMQuad::GetHorizontalMinMax(double* aX1, double* aX2) const

{

  double x1, x2;

  x1 = x2 = Point(0)->X();

  for (uint32_t i = 1; i < 4; ++i) {

    double x = Point(i)->X();

    x1 = std::min(x1, x);

    x2 = std::max(x2, x);

  }

  *aX1 = x1;

  *aX2 = x2;

}

void

DOMQuad::GetVerticalMinMax(double* aY1, double* aY2) const

{

  double y1, y2;

  y1 = y2 = Point(0)->Y();

  for (uint32_t i = 1; i < 4; ++i) {

    double y = Point(i)->Y();

    y1 = std::min(y1, y);

    y2 = std::max(y2, y);

  }

  *aY1 = y1;

  *aY2 = y2;

}

DOMRectReadOnly*

DOMQuad::Bounds()

{

  if (!mBounds) {

    mBounds = GetBounds();

  }

  return mBounds;

}

already_AddRefed<DOMRectReadOnly>

DOMQuad::GetBounds() const

{

  double x1, x2;

  double y1, y2;

  GetHorizontalMinMax(&x1, &x2);

  GetVerticalMinMax(&y1, &y2);

  RefPtr<DOMRectReadOnly> rval = new DOMRectReadOnly(GetParentObject(),

                                                     x1, y1, x2 - x1, y2 - y1);

  return rval.forget();

}

void

DOMQuad::ToJSON(DOMQuadJSON& aInit)

{

  aInit.mP1.Construct(RefPtr<DOMPoint>(P1()).forget());

  aInit.mP2.Construct(RefPtr<DOMPoint>(P2()).forget());

  aInit.mP3.Construct(RefPtr<DOMPoint>(P3()).forget());

  aInit.mP4.Construct(RefPtr<DOMPoint>(P4()).forget());

}