michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef GFX_CanvasLayerComposite_H
michael@0: #define GFX_CanvasLayerComposite_H
michael@0: 
michael@0: #include "Layers.h"                     // for CanvasLayer, etc
michael@0: #include "mozilla/Attributes.h"         // for MOZ_OVERRIDE
michael@0: #include "mozilla/RefPtr.h"             // for RefPtr
michael@0: #include "mozilla/layers/LayerManagerComposite.h"  // for LayerComposite, etc
michael@0: #include "mozilla/layers/LayersTypes.h"  // for LayerRenderState, etc
michael@0: #include "nsDebug.h"                    // for NS_RUNTIMEABORT
michael@0: #include "nsRect.h"                     // for nsIntRect
michael@0: #include "nscore.h"                     // for nsACString
michael@0: struct nsIntPoint;
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace layers {
michael@0: 
michael@0: class CompositableHost;
michael@0: // Canvas layers use ImageHosts (but CanvasClients) because compositing a
michael@0: // canvas is identical to compositing an image.
michael@0: class ImageHost;
michael@0: 
michael@0: class CanvasLayerComposite : public CanvasLayer,
michael@0:                              public LayerComposite
michael@0: {
michael@0: public:
michael@0:   CanvasLayerComposite(LayerManagerComposite* aManager);
michael@0: 
michael@0:   virtual ~CanvasLayerComposite();
michael@0: 
michael@0:   // CanvasLayer impl
michael@0:   virtual void Initialize(const Data& aData) MOZ_OVERRIDE
michael@0:   {
michael@0:     NS_RUNTIMEABORT("Incompatibe surface type");
michael@0:   }
michael@0: 
michael@0:   virtual LayerRenderState GetRenderState() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual bool SetCompositableHost(CompositableHost* aHost) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void Disconnect() MOZ_OVERRIDE
michael@0:   {
michael@0:     Destroy();
michael@0:   }
michael@0: 
michael@0:   virtual Layer* GetLayer() MOZ_OVERRIDE;
michael@0:   virtual void RenderLayer(const nsIntRect& aClipRect) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void CleanupResources() MOZ_OVERRIDE;
michael@0: 
michael@0:   CompositableHost* GetCompositableHost() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual LayerComposite* AsLayerComposite() MOZ_OVERRIDE { return this; }
michael@0: 
michael@0:   void SetBounds(nsIntRect aBounds) { mBounds = aBounds; }
michael@0: 
michael@0:   virtual const char* Name() const MOZ_OVERRIDE { return "CanvasLayerComposite"; }
michael@0: 
michael@0: protected:
michael@0:   virtual nsACString& PrintInfo(nsACString& aTo, const char* aPrefix) MOZ_OVERRIDE;
michael@0: 
michael@0: private:
michael@0:   RefPtr<CompositableHost> mImageHost;
michael@0: };
michael@0: 
michael@0: } /* layers */
michael@0: } /* mozilla */
michael@0: #endif /* GFX_CanvasLayerComposite_H */