// 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 __BACKEDUPWINDOW_H__

#define __BACKEDUPWINDOW_H__

#include "wnredraw.h"

#include "window.h"

class CWsBackedUpWindow : public CWsWindowRedraw

	{

public:

	static void StaticInitL();

	static void StaticDestroy();

public:

	CWsBackedUpWindow(CWsWindow *aWin, TDisplayMode aDisplayMode);

	void ConstructL();

	~CWsBackedUpWindow();

	TBool CommandL(TInt aOpcode, TWsWinCmdUnion &aCmd);

	void Resize(const TSize &aSize, const TSize &aOldSize);

	inline TDisplayMode DisplayMode() const;

	void PrepareForResizeL(const TSize &aSize, TSize &aOldSize);

	void DrawWindow();

	virtual CFbsDevice* OutputDevice() const;

	virtual TBool DrawCommand(CWsGc*,const TAny*);

private:

	void ActivateGc();

	void SetSizeInTwips();

	//from CWsWindowRedraw

	TRgb BackColor() const;

	TBool NeedsRedraw() const;

	TBool GetRedrawRect(TRect &aRect) const;

	CWsBackedUpWindow *Backup() const;

	void Scroll(const TRect &aClipRect, const TPoint &aOffset,const TRect &aRect);

	void MarkDirtyAndSchedule(const TRegion& aRegion);

	void UpdateScreen(const TRegion& aRegion);

private:

	static CFbsBitGc *iBitGc;

	CFbsBitmapDevice *iBitmapDevice;

	CFbsBitmap *iBitmap;

	TDisplayMode iDisplayMode;

	RWsRegionBuf<10> iCurrentRegion; //Calculated when the backedupwindow resizes. Stores local window coordinates.

	TBool iHasBeenScheduled;

	};

inline TDisplayMode CWsBackedUpWindow::DisplayMode() const

	{

	return iDisplayMode;

	}

#endif