Simple back to front compositor.
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mozilla/view/src/nsViewManager2.cpp
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2063
mozilla/view/src/nsViewManager2.cpp
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mozilla/view/src/nsViewManager2.h
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mozilla/view/src/nsViewManager2.h
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#ifndef nsViewManager2_h___
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#define nsViewManager2_h___
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#include "nsIViewManager.h"
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#include "nsCRT.h"
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#include "nsIPresContext.h"
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#include "nsIWidget.h"
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#include "nsITimer.h"
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#include "prtime.h"
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#include "prinrval.h"
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#include "nsVoidArray.h"
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#include "nsIScrollableView.h"
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#include "nsIRegion.h"
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#include "nsIBlender.h"
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class nsISupportsArray;
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class nsViewManager2 : public nsIViewManager {
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public:
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nsViewManager2();
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NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
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NS_DECL_ISUPPORTS
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NS_IMETHOD Init(nsIDeviceContext* aContext);
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NS_IMETHOD GetRootView(nsIView *&aView);
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NS_IMETHOD SetRootView(nsIView *aView);
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NS_IMETHOD GetFrameRate(PRUint32 &aRate);
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NS_IMETHOD SetFrameRate(PRUint32 frameRate);
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NS_IMETHOD GetWindowDimensions(nscoord *width, nscoord *height);
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NS_IMETHOD SetWindowDimensions(nscoord width, nscoord height);
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NS_IMETHOD ResetScrolling(void);
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NS_IMETHOD Composite(void);
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NS_IMETHOD UpdateView(nsIView *aView, PRUint32 aUpdateFlags);
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NS_IMETHOD UpdateView(nsIView *aView, const nsRect &aRect, PRUint32 aUpdateFlags);
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NS_IMETHOD UpdateAllViews(PRUint32 aUpdateFlags);
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NS_IMETHOD DispatchEvent(nsGUIEvent *aEvent, nsEventStatus* aStatus);
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NS_IMETHOD GrabMouseEvents(nsIView *aView, PRBool &aResult);
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NS_IMETHOD GrabKeyEvents(nsIView *aView, PRBool &aresult);
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NS_IMETHOD GetMouseEventGrabber(nsIView *&aView);
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NS_IMETHOD GetKeyEventGrabber(nsIView *&aView);
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NS_IMETHOD InsertChild(nsIView *parent, nsIView *child, nsIView *sibling,
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PRBool above);
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NS_IMETHOD InsertChild(nsIView *parent, nsIView *child,
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PRInt32 zindex);
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NS_IMETHOD RemoveChild(nsIView *parent, nsIView *child);
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NS_IMETHOD MoveViewBy(nsIView *aView, nscoord aX, nscoord aY);
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NS_IMETHOD MoveViewTo(nsIView *aView, nscoord aX, nscoord aY);
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NS_IMETHOD ResizeView(nsIView *aView, nscoord aWidth, nscoord aHeight);
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NS_IMETHOD SetViewClip(nsIView *aView, nsRect *aRect);
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NS_IMETHOD SetViewVisibility(nsIView *aView, nsViewVisibility aVisible);
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NS_IMETHOD SetViewZIndex(nsIView *aView, PRInt32 aZIndex);
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NS_IMETHOD SetViewAutoZIndex(nsIView *aView, PRBool aAutoZIndex);
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NS_IMETHOD MoveViewAbove(nsIView *aView, nsIView *aOther);
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NS_IMETHOD MoveViewBelow(nsIView *aView, nsIView *aOther);
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NS_IMETHOD IsViewShown(nsIView *aView, PRBool& aResult);
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NS_IMETHOD GetViewClipAbsolute(nsIView *aView, nsRect *aRect, PRBool &aResult);
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NS_IMETHOD SetViewContentTransparency(nsIView *aView, PRBool aTransparent);
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NS_IMETHOD SetViewOpacity(nsIView *aView, float aOpacity);
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NS_IMETHOD SetViewObserver(nsIViewObserver *aObserver);
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NS_IMETHOD GetViewObserver(nsIViewObserver *&aObserver);
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NS_IMETHOD GetDeviceContext(nsIDeviceContext *&aContext);
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NS_IMETHOD ShowQuality(PRBool aShow);
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NS_IMETHOD GetShowQuality(PRBool &aResult);
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NS_IMETHOD SetQuality(nsContentQuality aQuality);
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NS_IMETHOD DisableRefresh(void);
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NS_IMETHOD EnableRefresh(void);
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NS_IMETHOD BeginUpdateViewBatch(void);
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NS_IMETHOD EndUpdateViewBatch(void);
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NS_IMETHOD SetRootScrollableView(nsIScrollableView *aScrollable);
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NS_IMETHOD GetRootScrollableView(nsIScrollableView **aScrollable);
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nsDrawingSurface GetDrawingSurface(nsIRenderingContext &aContext, nsRect& aBounds);
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NS_IMETHOD Display(nsIView *aView);
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NS_IMETHOD AddCompositeListener(nsICompositeListener *aListener);
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NS_IMETHOD RemoveCompositeListener(nsICompositeListener *aListener);
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protected:
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virtual ~nsViewManager2();
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private:
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nsIRenderingContext *CreateRenderingContext(nsIView &aView);
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void AddRectToDirtyRegion(nsIView* aView, const nsRect &aRect) const;
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void UpdateDirtyViews(nsIView *aView, nsRect *aParentRect) const;
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void UpdateTransCnt(nsIView *oldview, nsIView *newview);
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void ProcessPendingUpdates(nsIView *aView);
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void UpdateViews(nsIView *aView, PRUint32 aUpdateFlags);
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void Refresh(nsIView *aView, nsIRenderingContext *aContext,
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nsIRegion *region, PRUint32 aUpdateFlags);
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void Refresh(nsIView* aView, nsIRenderingContext *aContext,
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const nsRect *rect, PRUint32 aUpdateFlags);
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void RenderViews(nsIView *aRootView, nsIRenderingContext& aRC, const nsRect& aRect,
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PRBool &aResult);
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void RenderView(nsIView *aView, nsIRenderingContext &aRC,
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const nsRect &aDamageRect, nsRect &aGlobalRect, PRBool &aResult);
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PRBool CreateDisplayList(nsIView *aView, PRInt32 *aIndex, nscoord aOriginX, nscoord aOriginY,
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nsIView *aRealView, const nsRect *aDamageRect = nsnull,
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nsIView *aTopView = nsnull, nsVoidArray *aArray = nsnull,
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nscoord aX = 0, nscoord aY = 0);
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PRBool AddToDisplayList(nsVoidArray *aArray, PRInt32 *aIndex,
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nsIView *aView, nsRect &aRect, PRUint32 aFlags);
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void ShowDisplayList(PRInt32 flatlen);
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void ComputeViewOffset(nsIView *aView, nscoord *aX, nscoord *aY, PRInt32 aFlag);
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PRBool DoesViewHaveNativeWidget(nsIView &aView);
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void PauseTimer(void);
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void RestartTimer(void);
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// Utilities
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/**
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* Returns the nearest parent view with an attached widget. Can be the
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* same view as passed-in.
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*/
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nsIView* GetWidgetView(nsIView *aView) const;
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/**
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* Transforms a rectangle from specified view's coordinate system to
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* the first parent that has an attached widget.
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*/
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void ViewToWidget(nsIView *aView, nsIView* aWidgetView, nsRect &aRect) const;
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// void WidgetToView(nsIView* aView, nsRect &aWidgetRect);
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private:
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nsIDeviceContext *mContext;
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nsIViewObserver *mObserver;
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nsIWidget *mRootWindow;
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PRIntervalTime mLastRefresh;
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PRInt32 mTransCnt;
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PRBool mRefreshEnabled;
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PRBool mPainting;
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nsIView *mMouseGrabber;
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nsIView *mKeyGrabber;
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PRInt32 mUpdateCnt;
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PRInt32 mUpdateBatchCnt;
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nsVoidArray *mDisplayList;
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nsIScrollableView *mRootScrollable;
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//from here to public should be static and locked... MMP
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static PRUint32 mVMCount; //number of viewmanagers
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static nsDrawingSurface mDrawingSurface; //single drawing surface
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static nsRect mDSBounds; //for all VMs
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//blending buffers
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static nsDrawingSurface gOffScreen;
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static nsDrawingSurface gRed;
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static nsDrawingSurface gBlue;
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static PRInt32 gBlendWidth;
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static PRInt32 gBlendHeight;
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//compositor regions
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nsIRegion *mTransRgn;
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nsIRegion *mOpaqueRgn;
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nsIRegion *mRCRgn;
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nsIRegion *mTRgn;
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nsRegionRectSet *mTransRects;
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nsIBlender *mBlender;
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nsIRenderingContext *mOffScreenCX;
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nsIRenderingContext *mRedCX;
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nsIRenderingContext *mBlueCX;
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nsISupportsArray *mCompositeListeners;
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public:
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//these are public so that our timer callback can poke them.
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nsITimer *mTimer;
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nsRect mDirtyRect;
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nsIView *mRootView;
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PRUint32 mFrameRate;
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PRUint32 mTrueFrameRate;
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};
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#endif /* nsViewManager2_h___ */
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