1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/base/src/DOMQuad.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,159 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "mozilla/dom/DOMQuad.h"
1.10 +
1.11 +#include "mozilla/dom/DOMQuadBinding.h"
1.12 +#include "mozilla/dom/DOMPoint.h"
1.13 +#include "mozilla/dom/DOMRect.h"
1.14 +#include <algorithm>
1.15 +
1.16 +using namespace mozilla;
1.17 +using namespace mozilla::dom;
1.18 +using namespace mozilla::gfx;
1.19 +
1.20 +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_6(DOMQuad, mParent, mBounds, mPoints[0],
1.21 + mPoints[1], mPoints[2], mPoints[3])
1.22 +
1.23 +NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(DOMQuad, AddRef)
1.24 +NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(DOMQuad, Release)
1.25 +
1.26 +DOMQuad::DOMQuad(nsISupports* aParent, CSSPoint aPoints[4])
1.27 + : mParent(aParent)
1.28 +{
1.29 + SetIsDOMBinding();
1.30 + for (uint32_t i = 0; i < 4; ++i) {
1.31 + mPoints[i] = new DOMPoint(aParent, aPoints[i].x, aPoints[i].y);
1.32 + }
1.33 +}
1.34 +
1.35 +DOMQuad::DOMQuad(nsISupports* aParent)
1.36 + : mParent(aParent)
1.37 +{
1.38 + SetIsDOMBinding();
1.39 +}
1.40 +
1.41 +DOMQuad::~DOMQuad()
1.42 +{
1.43 +}
1.44 +
1.45 +JSObject*
1.46 +DOMQuad::WrapObject(JSContext* aCx)
1.47 +{
1.48 + return DOMQuadBinding::Wrap(aCx, this);
1.49 +}
1.50 +
1.51 +already_AddRefed<DOMQuad>
1.52 +DOMQuad::Constructor(const GlobalObject& aGlobal,
1.53 + const DOMPointInit& aP1,
1.54 + const DOMPointInit& aP2,
1.55 + const DOMPointInit& aP3,
1.56 + const DOMPointInit& aP4,
1.57 + ErrorResult& aRV)
1.58 +{
1.59 + nsRefPtr<DOMQuad> obj = new DOMQuad(aGlobal.GetAsSupports());
1.60 + obj->mPoints[0] = DOMPoint::Constructor(aGlobal, aP1, aRV);
1.61 + obj->mPoints[1] = DOMPoint::Constructor(aGlobal, aP2, aRV);
1.62 + obj->mPoints[2] = DOMPoint::Constructor(aGlobal, aP3, aRV);
1.63 + obj->mPoints[3] = DOMPoint::Constructor(aGlobal, aP4, aRV);
1.64 + return obj.forget();
1.65 +}
1.66 +
1.67 +already_AddRefed<DOMQuad>
1.68 +DOMQuad::Constructor(const GlobalObject& aGlobal, const DOMRectReadOnly& aRect,
1.69 + ErrorResult& aRV)
1.70 +{
1.71 + CSSPoint points[4];
1.72 + Float x = aRect.X(), y = aRect.Y(), w = aRect.Width(), h = aRect.Height();
1.73 + points[0] = CSSPoint(x, y);
1.74 + points[1] = CSSPoint(x + w, y);
1.75 + points[2] = CSSPoint(x + w, y + h);
1.76 + points[3] = CSSPoint(x, y + h);
1.77 + nsRefPtr<DOMQuad> obj = new DOMQuad(aGlobal.GetAsSupports(), points);
1.78 + return obj.forget();
1.79 +}
1.80 +
1.81 +class DOMQuad::QuadBounds MOZ_FINAL : public DOMRectReadOnly
1.82 +{
1.83 +public:
1.84 + QuadBounds(DOMQuad* aQuad)
1.85 + : DOMRectReadOnly(aQuad->GetParentObject())
1.86 + , mQuad(aQuad)
1.87 + {}
1.88 +
1.89 + NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(QuadBounds, DOMRectReadOnly)
1.90 + NS_DECL_ISUPPORTS_INHERITED
1.91 +
1.92 + virtual double X() const
1.93 + {
1.94 + double x1, x2;
1.95 + GetHorizontalMinMax(&x1, &x2);
1.96 + return x1;
1.97 + }
1.98 + virtual double Y() const
1.99 + {
1.100 + double y1, y2;
1.101 + GetVerticalMinMax(&y1, &y2);
1.102 + return y1;
1.103 + }
1.104 + virtual double Width() const
1.105 + {
1.106 + double x1, x2;
1.107 + GetHorizontalMinMax(&x1, &x2);
1.108 + return x2 - x1;
1.109 + }
1.110 + virtual double Height() const
1.111 + {
1.112 + double y1, y2;
1.113 + GetVerticalMinMax(&y1, &y2);
1.114 + return y2 - y1;
1.115 + }
1.116 +
1.117 + void GetHorizontalMinMax(double* aX1, double* aX2) const
1.118 + {
1.119 + double x1, x2;
1.120 + x1 = x2 = mQuad->Point(0)->X();
1.121 + for (uint32_t i = 1; i < 4; ++i) {
1.122 + double x = mQuad->Point(i)->X();
1.123 + x1 = std::min(x1, x);
1.124 + x2 = std::max(x2, x);
1.125 + }
1.126 + *aX1 = x1;
1.127 + *aX2 = x2;
1.128 + }
1.129 +
1.130 + void GetVerticalMinMax(double* aY1, double* aY2) const
1.131 + {
1.132 + double y1, y2;
1.133 + y1 = y2 = mQuad->Point(0)->Y();
1.134 + for (uint32_t i = 1; i < 4; ++i) {
1.135 + double y = mQuad->Point(i)->Y();
1.136 + y1 = std::min(y1, y);
1.137 + y2 = std::max(y2, y);
1.138 + }
1.139 + *aY1 = y1;
1.140 + *aY2 = y2;
1.141 + }
1.142 +
1.143 +protected:
1.144 + nsRefPtr<DOMQuad> mQuad;
1.145 +};
1.146 +
1.147 +NS_IMPL_CYCLE_COLLECTION_INHERITED(DOMQuad::QuadBounds, DOMRectReadOnly, mQuad)
1.148 +
1.149 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(DOMQuad::QuadBounds)
1.150 +NS_INTERFACE_MAP_END_INHERITING(DOMRectReadOnly)
1.151 +
1.152 +NS_IMPL_ADDREF_INHERITED(DOMQuad::QuadBounds, DOMRectReadOnly)
1.153 +NS_IMPL_RELEASE_INHERITED(DOMQuad::QuadBounds, DOMRectReadOnly)
1.154 +
1.155 +DOMRectReadOnly*
1.156 +DOMQuad::Bounds() const
1.157 +{
1.158 + if (!mBounds) {
1.159 + mBounds = new QuadBounds(const_cast<DOMQuad*>(this));
1.160 + }
1.161 + return mBounds;
1.162 +}
