michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "mozilla/dom/DOMQuad.h"
michael@0: 
michael@0: #include "mozilla/dom/DOMQuadBinding.h"
michael@0: #include "mozilla/dom/DOMPoint.h"
michael@0: #include "mozilla/dom/DOMRect.h"
michael@0: #include <algorithm>
michael@0: 
michael@0: using namespace mozilla;
michael@0: using namespace mozilla::dom;
michael@0: using namespace mozilla::gfx;
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_6(DOMQuad, mParent, mBounds, mPoints[0],
michael@0:                                         mPoints[1], mPoints[2], mPoints[3])
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(DOMQuad, AddRef)
michael@0: NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(DOMQuad, Release)
michael@0: 
michael@0: DOMQuad::DOMQuad(nsISupports* aParent, CSSPoint aPoints[4])
michael@0:   : mParent(aParent)
michael@0: {
michael@0:   SetIsDOMBinding();
michael@0:   for (uint32_t i = 0; i < 4; ++i) {
michael@0:     mPoints[i] = new DOMPoint(aParent, aPoints[i].x, aPoints[i].y);
michael@0:   }
michael@0: }
michael@0: 
michael@0: DOMQuad::DOMQuad(nsISupports* aParent)
michael@0:   : mParent(aParent)
michael@0: {
michael@0:   SetIsDOMBinding();
michael@0: }
michael@0: 
michael@0: DOMQuad::~DOMQuad()
michael@0: {
michael@0: }
michael@0: 
michael@0: JSObject*
michael@0: DOMQuad::WrapObject(JSContext* aCx)
michael@0: {
michael@0:   return DOMQuadBinding::Wrap(aCx, this);
michael@0: }
michael@0: 
michael@0: already_AddRefed<DOMQuad>
michael@0: DOMQuad::Constructor(const GlobalObject& aGlobal,
michael@0:                      const DOMPointInit& aP1,
michael@0:                      const DOMPointInit& aP2,
michael@0:                      const DOMPointInit& aP3,
michael@0:                      const DOMPointInit& aP4,
michael@0:                      ErrorResult& aRV)
michael@0: {
michael@0:   nsRefPtr<DOMQuad> obj = new DOMQuad(aGlobal.GetAsSupports());
michael@0:   obj->mPoints[0] = DOMPoint::Constructor(aGlobal, aP1, aRV);
michael@0:   obj->mPoints[1] = DOMPoint::Constructor(aGlobal, aP2, aRV);
michael@0:   obj->mPoints[2] = DOMPoint::Constructor(aGlobal, aP3, aRV);
michael@0:   obj->mPoints[3] = DOMPoint::Constructor(aGlobal, aP4, aRV);
michael@0:   return obj.forget();
michael@0: }
michael@0: 
michael@0: already_AddRefed<DOMQuad>
michael@0: DOMQuad::Constructor(const GlobalObject& aGlobal, const DOMRectReadOnly& aRect,
michael@0:                      ErrorResult& aRV)
michael@0: {
michael@0:   CSSPoint points[4];
michael@0:   Float x = aRect.X(), y = aRect.Y(), w = aRect.Width(), h = aRect.Height();
michael@0:   points[0] = CSSPoint(x, y);
michael@0:   points[1] = CSSPoint(x + w, y);
michael@0:   points[2] = CSSPoint(x + w, y + h);
michael@0:   points[3] = CSSPoint(x, y + h);
michael@0:   nsRefPtr<DOMQuad> obj = new DOMQuad(aGlobal.GetAsSupports(), points);
michael@0:   return obj.forget();
michael@0: }
michael@0: 
michael@0: class DOMQuad::QuadBounds MOZ_FINAL : public DOMRectReadOnly
michael@0: {
michael@0: public:
michael@0:   QuadBounds(DOMQuad* aQuad)
michael@0:     : DOMRectReadOnly(aQuad->GetParentObject())
michael@0:     , mQuad(aQuad)
michael@0:   {}
michael@0: 
michael@0:   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(QuadBounds, DOMRectReadOnly)
michael@0:   NS_DECL_ISUPPORTS_INHERITED
michael@0: 
michael@0:   virtual double X() const
michael@0:   {
michael@0:     double x1, x2;
michael@0:     GetHorizontalMinMax(&x1, &x2);
michael@0:     return x1;
michael@0:   }
michael@0:   virtual double Y() const
michael@0:   {
michael@0:     double y1, y2;
michael@0:     GetVerticalMinMax(&y1, &y2);
michael@0:     return y1;
michael@0:   }
michael@0:   virtual double Width() const
michael@0:   {
michael@0:     double x1, x2;
michael@0:     GetHorizontalMinMax(&x1, &x2);
michael@0:     return x2 - x1;
michael@0:   }
michael@0:   virtual double Height() const
michael@0:   {
michael@0:     double y1, y2;
michael@0:     GetVerticalMinMax(&y1, &y2);
michael@0:     return y2 - y1;
michael@0:   }
michael@0: 
michael@0:   void GetHorizontalMinMax(double* aX1, double* aX2) const
michael@0:   {
michael@0:     double x1, x2;
michael@0:     x1 = x2 = mQuad->Point(0)->X();
michael@0:     for (uint32_t i = 1; i < 4; ++i) {
michael@0:       double x = mQuad->Point(i)->X();
michael@0:       x1 = std::min(x1, x);
michael@0:       x2 = std::max(x2, x);
michael@0:     }
michael@0:     *aX1 = x1;
michael@0:     *aX2 = x2;
michael@0:   }
michael@0: 
michael@0:   void GetVerticalMinMax(double* aY1, double* aY2) const
michael@0:   {
michael@0:     double y1, y2;
michael@0:     y1 = y2 = mQuad->Point(0)->Y();
michael@0:     for (uint32_t i = 1; i < 4; ++i) {
michael@0:       double y = mQuad->Point(i)->Y();
michael@0:       y1 = std::min(y1, y);
michael@0:       y2 = std::max(y2, y);
michael@0:     }
michael@0:     *aY1 = y1;
michael@0:     *aY2 = y2;
michael@0:   }
michael@0: 
michael@0: protected:
michael@0:   nsRefPtr<DOMQuad> mQuad;
michael@0: };
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTION_INHERITED(DOMQuad::QuadBounds, DOMRectReadOnly, mQuad)
michael@0: 
michael@0: NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(DOMQuad::QuadBounds)
michael@0: NS_INTERFACE_MAP_END_INHERITING(DOMRectReadOnly)
michael@0: 
michael@0: NS_IMPL_ADDREF_INHERITED(DOMQuad::QuadBounds, DOMRectReadOnly)
michael@0: NS_IMPL_RELEASE_INHERITED(DOMQuad::QuadBounds, DOMRectReadOnly)
michael@0: 
michael@0: DOMRectReadOnly*
michael@0: DOMQuad::Bounds() const
michael@0: {
michael@0:   if (!mBounds) {
michael@0:     mBounds = new QuadBounds(const_cast<DOMQuad*>(this));
michael@0:   }
michael@0:   return mBounds;
michael@0: }