// Copyright (c) 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:

//

/**

 @file

 @test

 @internalComponent - Internal Symbian test code 

*/

#ifndef __TWINDOWS_H__

#define __TWINDOWS_H__

#include <e32base.h>

class TWsEvent;

class TWsRedrawEvent;

class RWindowTreeNode;

class RWindow;

class RWindowGroup;

class RBlankWindow;

class RBackedUpWindow;

class RWsSession;

class CWindowGc;

class CWsScreenDevice;

/**

 * The class handles redrawing of the window tree node standard class 

 */

class CTWindowTreeNode : public CBase

	{

public:

	virtual void Event(TWsEvent & aEvent) = 0;

	virtual void Redraw(TWsRedrawEvent & aEvent) = 0;

	virtual RWindowTreeNode* WindowTreeNode() 	{ return iWin; }

protected:

	RWindowTreeNode* iWin;

	};

/**

 * The class handles redrawing of the window window group

 */

class CTWindowGroup : public CTWindowTreeNode

	{

public:

	static CTWindowGroup* NewL(RWsSession& aWs, CWsScreenDevice* aScreenDevice);

	~CTWindowGroup();

	void Event(TWsEvent & aEvent);

	void Redraw(TWsRedrawEvent & aEvent);

	RWindowGroup* WindowGroup() { return reinterpret_cast<RWindowGroup*>(iWin); }

private:

	CTWindowGroup();

	void ConstructL(RWsSession & aWs, CWsScreenDevice* aScreenDevice);

	};

/**

 * Base class for windows.

 */

class CTWindow : public CTWindowTreeNode

	{

public:

	static CTWindow* NewL(RWsSession& aWs, CTWindowTreeNode& aGroup, CWindowGc& aGc);

	~CTWindow();

	void Event(TWsEvent & aEvent);

	void Redraw(TWsRedrawEvent & aEvent);

	RWindow* Window() { return reinterpret_cast<RWindow*>(iWin); }

	virtual void Draw();

private:

	CWindowGc& iGc;

private:

	CTWindow(CWindowGc& aGc);

	void ConstructL(RWsSession& aWs, CTWindowTreeNode& aGroup);

	};

#endif //__TWINDOWS_H__