зеркало из https://github.com/mozilla/gecko-dev.git
87 строки
2.5 KiB
C++
87 строки
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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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 "ClientLayerManager.h" // for ClientLayerManager, etc
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#include "Layers.h" // for ColorLayer, etc
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#include "mozilla/layers/LayersMessages.h" // for ColorLayerAttributes, etc
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#include "mozilla/mozalloc.h" // for operator new
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#include "nsCOMPtr.h" // for already_AddRefed
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#include "nsDebug.h" // for NS_ASSERTION
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#include "nsISupportsImpl.h" // for Layer::AddRef, etc
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#include "nsRegion.h" // for nsIntRegion
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namespace mozilla {
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namespace layers {
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using namespace mozilla::gfx;
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class ClientTextLayer : public TextLayer,
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public ClientLayer {
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public:
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explicit ClientTextLayer(ClientLayerManager* aLayerManager) :
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TextLayer(aLayerManager, static_cast<ClientLayer*>(this)),
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mSwapped(false)
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{
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MOZ_COUNT_CTOR(ClientTextLayer);
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}
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protected:
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virtual ~ClientTextLayer()
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{
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MOZ_COUNT_DTOR(ClientTextLayer);
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}
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public:
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virtual void SetVisibleRegion(const LayerIntRegion& aRegion)
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{
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NS_ASSERTION(ClientManager()->InConstruction(),
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"Can only set properties in construction phase");
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TextLayer::SetVisibleRegion(aRegion);
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}
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virtual void RenderLayer()
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{
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RenderMaskLayers(this);
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}
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virtual void FillSpecificAttributes(SpecificLayerAttributes& aAttrs)
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{
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NS_ASSERTION(!mSwapped, "Trying to access glyph array after it's been swapped!");
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aAttrs = TextLayerAttributes(GetBounds(), nsTArray<GlyphArray>(), uintptr_t(mFont.get()));
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aAttrs.get_TextLayerAttributes().glyphs().SwapElements(mGlyphs);
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mSwapped = true;
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}
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virtual void SetGlyphs(nsTArray<GlyphArray>&& aGlyphs)
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{
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TextLayer::SetGlyphs(Move(aGlyphs));
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mSwapped = false;
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}
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virtual Layer* AsLayer() { return this; }
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virtual ShadowableLayer* AsShadowableLayer() { return this; }
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protected:
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ClientLayerManager* ClientManager()
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{
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return static_cast<ClientLayerManager*>(mManager);
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}
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bool mSwapped;
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};
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already_AddRefed<TextLayer>
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ClientLayerManager::CreateTextLayer()
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{
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NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
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RefPtr<ClientTextLayer> layer =
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new ClientTextLayer(this);
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CREATE_SHADOW(Text);
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return layer.forget();
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}
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} // namespace layers
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} // namespace mozilla
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