--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/windowing/windowserver/nga/SERVER/openwfc/wnredraw.h	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,214 @@
+// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// CWsWindowRedraw and associated classes definitions
+// 
+//
+
+#ifndef __WNREDRAW_H__
+#define __WNREDRAW_H__
+
+#include "server.h"
+#include "panics.h"
+
+class TSurfaceId;
+
+class CPlaybackGc;
+class MWsGraphicsContext;
+class TBackgroundAttributes;
+
+//
+// Base class defining how a window is redrawn, i.e. Backed up, redraw from client, blanked...
+//
+class CWsWindowRedraw : public CBase
+	{
+private:
+	enum TStateFlags
+		{
+		EHasElement=0x01,
+		EMayContainElement=0x10,
+		};
+public:
+	~CWsWindowRedraw();
+	virtual void ConstructL();
+	virtual TBool CommandL(TInt aOpcode, TWsWinCmdUnion &aCmd)=0;
+	virtual TRgb BackColor() const=0;
+	virtual TBool NeedsRedraw() const=0;
+	virtual TBool GetRedrawRect(TRect &aRect) const=0;
+	virtual const TRegion &BaseDrawRegion() const;
+	virtual void ClipInvalidRegion(const TRect &aRect);
+	virtual const TRegion& InvalidArea() const;
+	virtual void Resize(const TSize &aSize, const TSize &aOldSize);
+	virtual CWsBackedUpWindow *Backup() const;
+	virtual void Scroll(const TRect &aClipRect, const TPoint &aOffset,const TRect &aRect);
+	virtual void UpdateAnimArea();
+	virtual void PrepareForResizeL(const TSize &aSize, TSize &aOldSize);
+	virtual void Moved() {}
+	virtual void ClearRedrawStore(TBool aClearPendingRedraw=EFalse);
+	virtual TBool DrawCommand(CWsGc* aGc,const TAny *aCmdData);
+	virtual void GcAttributeChange(CWsGc* aGc,const TAny *aCmdData);
+	virtual void GcDeactivate(CWsGc* aGc);
+	inline CWsWindow *WsWin();	// Link back to main window class
+	virtual void ClientExposing();
+	virtual void DrawWindow()=0;
+	TInt DrawBackgroundColor(const TRegion& aRegion, TBool aDoFillColor);
+	virtual TBool Contains(const TArray<TGraphicDrawerId>& aDrawers,const TRegion& aRegion) const;
+	const TRegion * RedrawRegion();
+	virtual TBool ReleaseMemory(MWsMemoryRelease::TMemoryReleaseLevel aLevel);
+	virtual CFbsDevice* OutputDevice() const;
+	virtual void VisibleRegionChange();
+	virtual TBool ReadyToDraw() const;
+	void PreDrawWindow(MWsGraphicsContext * aGc, const TRegion &aWindowRegion);
+	void PostDrawWindow(MWsGraphicsContext* aGc, const TRegion& aWindowChildNodeRegion);
+	virtual void Invalidate(const TRect *) {}	
+	virtual TInt SizeInBytes() const { return 0; }
+	inline TBool HasElement() const;
+	inline TBool MayContainElement() const;
+	inline void SetHasElement(TBool);
+	inline TBool HasElementExtentDefined() const;
+	inline void  ClearMayContainElement();
+	virtual TBool RedrawingInProgress() const; 
+	virtual void WindowClosing();
+	virtual TBool IsRedrawStoreEmpty() const { return EFalse; }
+	virtual TBool IsBackgroundClearEnabled() const { return ETrue; }
+	virtual CFbsBitmap* BitmapFromHandle(TInt /*aHandle*/) const { return NULL; }
+
+	void SetDsaElementL();
+	inline void QueueRedraw();
+	void Fade(MWsGraphicsContext * aGc, const TRegion& aRegion);
+protected:
+	CWsWindowRedraw(CWsWindow *aWin);
+	void SetReply(TInt aReply);
+	void OwnerPanic(TClientPanic aPanic);
+	inline CScreen* Screen() const;
+	inline CWsClientWindow *CliWin() const;
+	void DrawWindowAnimsL(MWsGraphicsContext * aGc, const TRegion& aRegion);
+	TBackgroundAttributes& AcquireBackgroundElementL();
+	void SetBackgroundSurfaceL(const TSurfaceId& aSurface);
+	void SetBackgroundSurfaceL(const TSurfaceConfiguration& aConfiguration, TBool aTriggerRedraw, TBool aAllowScreenSurface);
+	void SetElementExtentL(TRect& aNewExtent, TBackgroundAttributes& aAttributes);
+	void ElementRedraw(const TRect& aOldExtent, const TRect& aNewExtent, TBool aAlwaysScheduleUpdate);
+	void RemoveBackgroundSurface(TBool aTriggerRedraw);
+	void RemoveBackgroundElement(TBool aTriggerRedraw);
+	void GetBackgroundSurfaceL(TSurfaceConfiguration& aConfiguration);
+	void ReleaseBackgroundElement();
+	void SetMayContainElementFlags();
+private:
+	void DoFade(const TRegion& aRegion);
+	void DrawWindowAnims(MWsGraphicsContext * aGc, const TRegion& aRegion);
+	void DrawCursorAndSprites(MWsGraphicsContext * aGc, const TRegion& aRegion);
+	TBool HasDsaElement() const;
+
+protected:
+	CWsWindow *iWsWin;	// Link back to main window class
+	TUint iStateFlags; 	// Flags affecting how drawing is done
+	const TRegion * iRedrawRegion; // During a scheduled draw, this is the window area scheduled to be drawn.
+	};							   // In ChangeTracking mode, iRedrawRegion doesn't include the area to be drawn by window-sprites, cursors or window-anims.
+								   // All of them use the sprite region, declared in CWsWindow::iDirtySpriteRegion.
+
+class CWsBlankWindow : public CWsWindowRedraw
+	{
+public:
+	CWsBlankWindow(CWsWindow *aWin);
+	~CWsBlankWindow();
+	void ConstructL();
+	
+	//from CWsWindowRedraw
+	TBool CommandL(TInt aOpcode, TWsWinCmdUnion &aCmd);
+	TBool NeedsRedraw() const;
+	TBool GetRedrawRect(TRect &aRect) const;
+	void DrawWindow();
+	
+	void SetColor(TRgb aColor);
+	inline void SetBackgroundClear();
+	inline TBool IsBackgroundColor();
+private:
+	TRgb BackColor() const;
+private:
+	TRgb iColor;
+	TBool iNoColor;
+	};
+	
+#include "window.h"
+
+inline CWsWindow *CWsWindowRedraw::WsWin()
+	{
+	return iWsWin;
+	}
+
+inline CScreen* CWsWindowRedraw::Screen() const
+	{
+	return iWsWin->Screen();
+	}
+
+inline CWsClientWindow *CWsWindowRedraw::CliWin() const
+	{
+	return (CWsClientWindow *)iWsWin;
+	}
+
+inline TBool CWsWindowRedraw::HasElement() const
+	{
+	return (iStateFlags&EHasElement)>0;
+	}
+inline void CWsWindowRedraw::SetHasElement(TBool aSet)
+	{
+	TInt oldStateFlags = iStateFlags; 
+	if (aSet)
+		{
+		iStateFlags|=EHasElement;
+		}
+	else
+		{
+		iStateFlags&=~EHasElement;
+		}
+	if (oldStateFlags!=iStateFlags)
+		{
+		iWsWin->SetupVisibleRegionTracking(aSet);
+		}
+	}
+
+inline TBool CWsWindowRedraw::MayContainElement() const
+	{
+	return (iStateFlags&EMayContainElement)>0;
+	}
+
+inline void CWsWindowRedraw::ClearMayContainElement()
+	{
+	iStateFlags&=~EMayContainElement;
+	}
+
+
+inline void CWsBlankWindow::SetBackgroundClear()
+	{
+	iNoColor=ETrue;
+	}
+
+inline TBool CWsBlankWindow::IsBackgroundColor()
+	{
+	return !iNoColor;
+	}
+
+inline void CWsWindowRedraw::QueueRedraw()
+	{
+	if (iWsWin->IsActive())
+		{
+		iWsWin->WsOwner()->RedrawQueue()->AddInvalid(this);
+		}
+	}
+
+inline const TRegion * CWsWindowRedraw::RedrawRegion()
+	{
+	return iRedrawRegion;
+	}
+
+#endif