зеркало из https://github.com/mozilla/gecko-dev.git
96 строки
3.1 KiB
C++
96 строки
3.1 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/DOMRect.h"
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#include "nsPresContext.h"
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#include "mozilla/dom/DOMRectListBinding.h"
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#include "mozilla/dom/DOMRectBinding.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(DOMRectReadOnly, mParent)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMRectReadOnly)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMRectReadOnly)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DOMRectReadOnly)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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JSObject*
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DOMRectReadOnly::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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MOZ_ASSERT(mParent);
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return DOMRectReadOnly_Binding::Wrap(aCx, this, aGivenProto);
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}
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already_AddRefed<DOMRectReadOnly>
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DOMRectReadOnly::Constructor(const GlobalObject& aGlobal, double aX, double aY,
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double aWidth, double aHeight, ErrorResult& aRv)
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{
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RefPtr<DOMRectReadOnly> obj =
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new DOMRectReadOnly(aGlobal.GetAsSupports(), aX, aY, aWidth, aHeight);
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return obj.forget();
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}
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// -----------------------------------------------------------------------------
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JSObject*
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DOMRect::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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MOZ_ASSERT(mParent);
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return DOMRect_Binding::Wrap(aCx, this, aGivenProto);
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}
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already_AddRefed<DOMRect>
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DOMRect::Constructor(const GlobalObject& aGlobal, double aX, double aY,
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double aWidth, double aHeight, ErrorResult& aRv)
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{
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RefPtr<DOMRect> obj =
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new DOMRect(aGlobal.GetAsSupports(), aX, aY, aWidth, aHeight);
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return obj.forget();
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}
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// -----------------------------------------------------------------------------
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(DOMRectList, mParent, mArray)
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NS_INTERFACE_TABLE_HEAD(DOMRectList)
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NS_WRAPPERCACHE_INTERFACE_TABLE_ENTRY
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NS_INTERFACE_TABLE0(DOMRectList)
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NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(DOMRectList)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMRectList)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMRectList)
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JSObject*
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DOMRectList::WrapObject(JSContext *cx, JS::Handle<JSObject*> aGivenProto)
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{
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return mozilla::dom::DOMRectList_Binding::Wrap(cx, this, aGivenProto);
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}
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static double
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RoundFloat(double aValue)
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{
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return floor(aValue + 0.5);
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}
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void
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DOMRect::SetLayoutRect(const nsRect& aLayoutRect)
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{
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double scale = 65536.0;
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// Round to the nearest 1/scale units. We choose scale so it can be represented
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// exactly by machine floating point.
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double scaleInv = 1/scale;
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double t2pScaled = scale/nsPresContext::AppUnitsPerCSSPixel();
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double x = RoundFloat(aLayoutRect.x*t2pScaled)*scaleInv;
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double y = RoundFloat(aLayoutRect.y*t2pScaled)*scaleInv;
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SetRect(x, y, RoundFloat(aLayoutRect.XMost()*t2pScaled)*scaleInv - x,
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RoundFloat(aLayoutRect.YMost()*t2pScaled)*scaleInv - y);
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}
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