// Copyright (c) 2008-2009 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:

//

#ifndef SCRDEVEXTENSION_H_

#define SCRDEVEXTENSION_H_

#include <graphics/displaycontrol.h>

#include <graphics/displaymapping.h>

#include <graphics/testscreencapture.h>

#include <w32std.h>

class CWsScreenDevice::CScrDevExtension : public CBase, public MDisplayControl, public MDisplayMapping, public MTestScreenCapture, public MWsClientClass

{

public:

	CScrDevExtension(RWsBuffer *aBuffer,TInt32 aWsHandle);

	~CScrDevExtension();

//create or access the 1:1 extension instance behind the screen device

	TInt RepeatableConstruct();

//get a specific interface

	void*	GetInterface(TUint aId);

//Access pre-existing data members

	CFbsTypefaceStore* TypefaceStore();

	void  SetTypefaceStore(CFbsTypefaceStore*);

//implementing MDisplayControlBase 

	virtual TInt NumberOfResolutions() const;

	virtual TInt GetResolutions(RArray<TResolution>& aResolutions) const;

	virtual void GetConfiguration(TDisplayConfiguration& aConfig) const;

	virtual TInt SetConfiguration(const TDisplayConfiguration& aConfig);

	virtual TInt PreferredDisplayVersion() const;

//implementing MDisplayControl

	virtual TBool DisplayChangeEventsEnabled() const;

	virtual void EnableDisplayChangeEvents(TBool aEnable);

//implementing MDisplayMapping

	virtual TInt MapCoordinates(TCoordinateSpace aSourceSpace, const TRect& aSource, TCoordinateSpace aTargetSpace, TRect& aTarget) const;

	virtual void GetMaximumWindowExtent(TRect& aExtent) const;

	virtual void GetMaximumSurfaceSize(TSize& aPixels, TSize& aTwips) const;

	virtual void GetDisplayExtentOfWindow(const RWindowBase& aWindow, TRect& aExtent) const;

//implementing MTestScreenCapture

	virtual TInt TranslateExtent(const TRect& aInitial, TRect& aTarget) const;

	virtual TInt GetCompositedSize(TSize& aSize) const;

	virtual TInt ComposeScreen(const CFbsBitmap& aBitmap) const;

private:

	//function used by GetResolutions

	TInt FillResolutionArray(TInt aNumOfRes, RArray<TResolution>& aResolutions) const;

protected:

	MWsClientClass* WriteClient() const;

	TInt	iSupportedExtensionsBits;

	CFbsTypefaceStore* iTypefaceStore;

};

#endif /*SCRDEVEXTENSION_H_*/