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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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)
{
return DOMQuadBinding::Wrap(aCx, this);
}
already_AddRefed<DOMQuad>
DOMQuad::Constructor(const GlobalObject& aGlobal,
const DOMPointInit& aP1,
const DOMPointInit& aP2,
const DOMPointInit& aP3,
const DOMPointInit& aP4,
ErrorResult& aRV)
{
nsRefPtr<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);
nsRefPtr<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() {}
nsRefPtr<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;
}
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