forked from mirrors/gecko-dev
265e672179
# ignore-this-changeset --HG-- extra : amend_source : 4d301d3b0b8711c4692392aa76088ba7fd7d1022
85 lines
3.3 KiB
C++
85 lines
3.3 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* DOMRectReadOnly::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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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> DOMRectReadOnly::Constructor(
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const GlobalObject& aGlobal, double aX, double aY, double aWidth,
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double aHeight, ErrorResult& aRv) {
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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* DOMRect::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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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> DOMRect::Constructor(const GlobalObject& aGlobal,
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double aX, double aY,
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double aWidth, double aHeight,
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ErrorResult& aRv) {
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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* DOMRectList::WrapObject(JSContext* cx,
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JS::Handle<JSObject*> aGivenProto) {
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return mozilla::dom::DOMRectList_Binding::Wrap(cx, this, aGivenProto);
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}
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static double RoundFloat(double aValue) { return floor(aValue + 0.5); }
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void DOMRect::SetLayoutRect(const nsRect& aLayoutRect) {
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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
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// represented exactly by machine floating point.
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double scaleInv = 1 / scale;
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double t2pScaled = scale / 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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