2 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
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26 #ifndef TiledDrawingArea_h
27 #define TiledDrawingArea_h
29 #if ENABLE(TILED_BACKING_STORE)
31 #include "DrawingArea.h"
32 #include "TiledBackingStoreClient.h"
33 #include "TiledBackingStoreRemoteTile.h"
34 #include <WebCore/IntRect.h>
38 class TiledDrawingArea : public DrawingArea, public WebCore::TiledBackingStoreClient, public TiledBackingStoreRemoteTileClient {
40 explicit TiledDrawingArea(WebPage*);
41 virtual ~TiledDrawingArea();
43 virtual void setNeedsDisplay(const WebCore::IntRect&);
44 virtual void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollDelta);
46 #if USE(ACCELERATED_COMPOSITING)
47 virtual void attachCompositingContext() { }
48 virtual void detachCompositingContext() { }
49 virtual void setRootCompositingLayer(WebCore::GraphicsLayer*) { }
50 virtual void scheduleCompositingLayerSync() { }
51 virtual void syncCompositingLayers() { }
55 // CoreIPC message handlers.
56 virtual void setSize(const WebCore::IntSize& viewSize);
57 virtual void setVisibleContentRectAndScale(const WebCore::IntRect&, float);
58 virtual void setVisibleContentRectTrajectoryVector(const WebCore::FloatPoint&);
59 virtual void renderNextFrame();
60 virtual void suspendPainting();
61 virtual void resumePainting();
63 // TiledBackingStoreClient
64 virtual void tiledBackingStorePaintBegin();
65 virtual void tiledBackingStorePaint(WebCore::GraphicsContext*, const WebCore::IntRect& contentRect);
66 virtual void tiledBackingStorePaintEnd(const Vector<WebCore::IntRect>& paintedArea);
67 virtual bool tiledBackingStoreUpdatesAllowed() const;
68 virtual WebCore::IntRect tiledBackingStoreContentsRect();
69 virtual WebCore::IntRect tiledBackingStoreVisibleRect();
70 virtual WebCore::Color tiledBackingStoreBackgroundColor() const;
72 // TiledBackingStoreRemoteTileClient
73 virtual void createTile(int tileID, const UpdateInfo&);
74 virtual void updateTile(int tileID, const UpdateInfo&);
75 virtual void removeTile(int tileID);
78 bool m_isWaitingForUIProcess;
79 bool m_didSendTileUpdate;
80 WebCore::IntRect m_visibleContentRect;
82 OwnPtr<WebCore::TiledBackingStore> m_mainBackingStore;
83 OwnPtr<WebCore::TiledBackingStore> m_previousBackingStore;
88 #endif // TILED_BACKING_STORE
90 #endif // TiledDrawingArea_h