gecko-dev/gfx/layers/composite/CanvasLayerComposite.h

73 lines
2.2 KiB
C++

/* -*- Mode: C++; tab-width: 20; 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/. */
#ifndef GFX_CanvasLayerComposite_H
#define GFX_CanvasLayerComposite_H
#include "Layers.h" // for CanvasLayer, etc
#include "mozilla/Attributes.h" // for MOZ_OVERRIDE
#include "mozilla/RefPtr.h" // for RefPtr
#include "mozilla/layers/LayerManagerComposite.h" // for LayerComposite, etc
#include "mozilla/layers/LayersTypes.h" // for LayerRenderState, etc
#include "nsDebug.h" // for NS_RUNTIMEABORT
#include "nsRect.h" // for nsIntRect
#include "nscore.h" // for nsACString
struct nsIntPoint;
namespace mozilla {
namespace layers {
class CompositableHost;
// Canvas layers use ImageHosts (but CanvasClients) because compositing a
// canvas is identical to compositing an image.
class ImageHost;
class CanvasLayerComposite : public CanvasLayer,
public LayerComposite
{
public:
CanvasLayerComposite(LayerManagerComposite* aManager);
virtual ~CanvasLayerComposite();
// CanvasLayer impl
virtual void Initialize(const Data& aData) MOZ_OVERRIDE
{
NS_RUNTIMEABORT("Incompatibe surface type");
}
virtual LayerRenderState GetRenderState() MOZ_OVERRIDE;
virtual bool SetCompositableHost(CompositableHost* aHost) MOZ_OVERRIDE;
virtual void Disconnect() MOZ_OVERRIDE
{
Destroy();
}
virtual Layer* GetLayer() MOZ_OVERRIDE;
virtual void RenderLayer(const nsIntRect& aClipRect) MOZ_OVERRIDE;
virtual void CleanupResources() MOZ_OVERRIDE;
CompositableHost* GetCompositableHost() MOZ_OVERRIDE;
virtual LayerComposite* AsLayerComposite() MOZ_OVERRIDE { return this; }
void SetBounds(nsIntRect aBounds) { mBounds = aBounds; }
virtual const char* Name() const MOZ_OVERRIDE { return "CanvasLayerComposite"; }
protected:
virtual nsACString& PrintInfo(nsACString& aTo, const char* aPrefix) MOZ_OVERRIDE;
private:
RefPtr<CompositableHost> mImageHost;
};
} /* layers */
} /* mozilla */
#endif /* GFX_CanvasLayerComposite_H */