зеркало из https://github.com/mozilla/gecko-dev.git
NOT PART OF BUILD. Checking in nsViewManager2 semi-rewrite as nsViewManager. Bug 39621. r=kmcclusk,a=waterson
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roc+%cs.cmu.edu
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@ -1,4 +1,4 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: true; c-basic-offset: 4 -*-
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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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@ -31,20 +31,24 @@
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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 "nsHashtable.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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// Uncomment this line to enable the performance timer for the view manager.
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class nsISupportsArray;
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struct DisplayListElement2;
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struct DisplayZTreeNode;
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//Uncomment the following line to enable generation of viewmanager performance data.
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#ifdef MOZ_PERF_METRICS
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//#define NS_VM_PERF_METRICS 1
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//#define NS_VM_PERF_METRICS 1
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#endif
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#ifdef NS_VM_PERF_METRICS
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#include "nsTimer.h"
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#endif
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class nsISupportsArray;
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// Dont want to get rid of timer code, because we may want to use it
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// if we go to a implementation where we have invalidates that have been queued
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@ -152,20 +156,19 @@ public:
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NS_IMETHOD GetWidget(nsIWidget **aWidget);
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NS_IMETHOD ForceUpdate();
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NS_IMETHOD GetOffset(nscoord *aX, nscoord *aY);
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NS_IMETHOD IsCachingWidgetChanges(PRBool* aCaching);
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NS_IMETHOD CacheWidgetChanges(PRBool aCache);
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protected:
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virtual ~nsViewManager();
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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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PRBool UpdateAllCoveringWidgets(nsIView *aView, nsIView *aTarget, nsRect &aDamagedRect);
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void ProcessPendingUpdates(nsIView *aView);
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void UpdateViews(nsIView *aView, PRUint32 aUpdateFlags);
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@ -175,17 +178,33 @@ private:
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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 RenderDisplayListElement(DisplayListElement2* element, nsIRenderingContext &aRC);
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void PaintView(nsIView *aView, nsIRenderingContext &aRC, nscoord x, nscoord y,
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const nsRect &aDamageRect);
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nsresult CreateBlendingBuffers(nsIRenderingContext &aRC);
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PRBool CreateDisplayList(nsIView *aView, PRBool aReparentedViewsPresent, DisplayZTreeNode* &aResult, nscoord aOriginX, nscoord aOriginY,
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PRBool aInsideRealView, nsIView *aRealView, const nsRect *aDamageRect = nsnull,
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nsIView *aTopView = nsnull, nscoord aX = 0, nscoord aY = 0);
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PRBool AddToDisplayList(nsIView *aView, DisplayZTreeNode* &aParent, nsRect &aClipRect, nsRect& aDirtyRect, PRUint32 aFlags, nscoord aAbsX, nscoord aAbsY);
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void ReapplyClipInstructions(PRBool aHaveClip, nsRect& aClipRect, PRInt32& aIndex);
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nsresult OptimizeDisplayList(const nsRect& aDamageRect);
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// Remove redundant PUSH/POP_CLIP pairs.
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void OptimizeDisplayListClipping(PRBool aHaveClip, nsRect& aClipRect, PRInt32& aIndex,
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PRBool& aAnyRendered);
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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 ComputeViewOffset(nsIView *aView, nsPoint *aOrigin);
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// Predicates
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PRBool DoesViewHaveNativeWidget(nsIView* aView);
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PRBool IsClipView(nsIView* aView);
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void PauseTimer(void);
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void RestartTimer(void);
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@ -204,7 +223,7 @@ private:
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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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/**
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/**
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* Transforms a rectangle from specified view's coordinate system to
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* an absolute coordinate rectangle which can be compared against the
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* rectangle returned by GetVisibleRect to determine visibility.
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@ -233,8 +252,62 @@ private:
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*/
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PRBool IsRectVisible(nsIView *aView, const nsRect &aRect);
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nsresult ProcessWidgetChanges(nsIView* aView);
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// Utilities used to size the offscreen drawing surface
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/**
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* Determine the maximum and width and height of all of the
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* view manager's widgets.
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*
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* @param aMaxWidgetBounds the maximum width and height of all view managers
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* widgets on exit.
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*/
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void GetMaxWidgetBounds(nsRect& aMaxWidgetBounds) const;
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/**
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* Determine if a rect's width and height will fit within a specified width and height
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* @param aRect rectangle to test
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* @param aWidth width to determine if the rectangle's width will fit within
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* @param aHeight height to determine if the rectangles height will fit within
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* @returns PR_TRUE if the rect width and height fits with aWidth, aHeight, PR_FALSE
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* otherwise.
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*/
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PRBool RectFitsInside(nsRect& aRect, PRInt32 aWidth, PRInt32 aHeight) const;
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/**
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* Determine if two rectangles width and height will fit within a specified width and height
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* @param aRect1 first rectangle to test
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* @param aRect1 second rectangle to test
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* @param aWidth width to determine if both rectangle's width will fit within
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* @param aHeight height to determine if both rectangles height will fit within
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* @returns PR_TRUE if the rect1's and rect2's width and height fits with aWidth,
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* aHeight, PR_FALSE otherwise.
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*/
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PRBool BothRectsFitInside(nsRect& aRect1, nsRect& aRect2, PRInt32 aWidth, PRInt32 aHeight, nsRect& aNewSize) const;
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/**
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* Return an offscreen surface size from a set of discrete surface sizes.
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* The smallest discrete surface size that can enclose both the Maximum widget
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* size (@see GetMaxWidgetBounds) and the requested size is returned.
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*
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* @param aRequestedSize Requested size for the offscreen.
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* @param aSurfaceSize contains the surface size
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*/
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void CalculateDiscreteSurfaceSize(nsRect& aRequestedSize, nsRect& aSize) const;
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/**
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* Get the size of the offscreen drawing surface..
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*
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* @param aRequestedSize Desired size for the offscreen.
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* @param aSurfaceSize Offscreen adjusted to a discrete size which encloses aRequestedSize.
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*/
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void GetDrawingSurfaceSize(nsRect& aRequestedSize, nsRect& aSurfaceSize) const;
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private:
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nsIDeviceContext *mContext;
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float mTwipsToPixels;
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float mPixelsToTwips;
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nsIViewObserver *mObserver;
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nsIWidget *mRootWindow;
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PRIntervalTime mLastRefresh;
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@ -245,8 +318,14 @@ private:
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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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PRInt32 mDisplayListCount;
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nsVoidArray mDisplayList;
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PRInt32 mTranslucentViewCount;
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nsRect mTranslucentArea; // bounding box of all translucent views.
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nsIScrollableView *mRootScrollable;
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PRInt32 mCachingWidgetChanges;
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nsHashtable mMapPlaceholderViewToZTreeNode;
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//from here to public should be static and locked... MMP
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static PRInt32 mVMCount; //number of viewmanagers
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@ -255,32 +334,33 @@ private:
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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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static nsDrawingSurface gBlack;
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static nsDrawingSurface gWhite;
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static nsSize gOffScreenSize;
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// Largest requested offscreen size if larger than a full screen.
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static nsSize gLargestRequestedSize;
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//list of view managers
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static nsVoidArray *gViewManagers;
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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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nsIRegion *mTmpRgn;
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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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nsIRenderingContext *mBlackCX;
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nsIRenderingContext *mWhiteCX;
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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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#if NS_VIEWMANAGER_NEEDS_TIMER
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#ifdef NS_VIEWMANAGER_NEEDS_TIMER
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nsCOMPtr<nsITimer> mTimer;
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#endif
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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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@ -294,5 +374,4 @@ protected:
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#endif
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};
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#endif
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#endif /* nsViewManager_h___ */
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