// 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 __MWSGRAPHICSCONTEXTTODIRECTGDIMAPPINGS_H__

#define __MWSGRAPHICSCONTEXTTODIRECTGDIMAPPINGS_H__

#include <gdi.h>

#include <graphics/wsgraphicscontext.h>

#include <graphics/directgditypes.h>

class MWsGraphicsContextToDirectGdiMappings

	{

public:

	static DirectGdi::TFillRule Convert(MWsGraphicsContext::TFillRule aFillRule) { return (DirectGdi::TFillRule)aFillRule; }

	static DirectGdi::TPenStyle Convert(MWsGraphicsContext::TPenStyle aPenStyle) { return (DirectGdi::TPenStyle)aPenStyle; }

	static DirectGdi::TBrushStyle Convert(MWsGraphicsContext::TBrushStyle aBrushStyle) { return (DirectGdi::TBrushStyle)aBrushStyle; }

	static DirectGdi::TTextAlign Convert(MWsGraphicsContext::TTextAlign aTextAlign) { return (DirectGdi::TTextAlign)aTextAlign; }

	static DirectGdi::TFontUnderline Convert(MWsGraphicsContext::TFontUnderline aFontUnderline) { return (DirectGdi::TFontUnderline)aFontUnderline; }

	static DirectGdi::TFontStrikethrough Convert(MWsGraphicsContext::TFontStrikethrough aFontStrikethrough) { return (DirectGdi::TFontStrikethrough)aFontStrikethrough; }

	static const DirectGdi::TTextParameters* Convert(const MWsGraphicsContext::TTextParameters* aParam) { return reinterpret_cast<const DirectGdi::TTextParameters*>(aParam); }

	static DirectGdi::TDrawMode LossyConvert(MWsGraphicsContext::TDrawMode aDrawMode)

		{return (aDrawMode==MWsGraphicsContext::EDrawModeWriteAlpha ? DirectGdi::EDrawModeWriteAlpha : DirectGdi::EDrawModePEN);}

	};

template<class T>

class TArrayWrapper : public TArray<T>

	{

public:

	TArrayWrapper(const T* aArray, TInt aCount);

private:

	static TInt Count(const CBase* aPtr);

	static const TAny* At(const CBase* aPtr, TInt aIndex);

private:

	const T* iArray;

	const TInt iCount;

	};

template<class T>

TArrayWrapper<T>::TArrayWrapper(const T* aArray, TInt aCount)

	: TArray<T>(TArrayWrapper::Count, TArrayWrapper::At, reinterpret_cast<const CBase*>(this)), iArray(aArray), iCount(aCount)

	{

	//reinterpret_cast above since this class doesn't derive from CBase but TArray is

	//only silly requiring CBase as opposed to TAny, so this is safe

	ASSERT(iArray);

	}

template<class T>

TInt TArrayWrapper<T>::Count(const CBase* aPtr)

	{

	//reinterpret_cast since this class doesn't derive from CBase but TArray is

	//only silly requiring CBase as opposed to TAny, so this is safe

	const TArrayWrapper* self = reinterpret_cast<const TArrayWrapper*>(aPtr);

	return self->iCount;

	}

template<class T>

const TAny* TArrayWrapper<T>::At(const CBase* aPtr, TInt aIndex)

	{

	//reinterpret_cast since this class doesn't derive from CBase but TArray is

	//only silly requiring CBase as opposed to TAny, so this is safe

	const TArrayWrapper* self = reinterpret_cast<const TArrayWrapper*>(aPtr);

	if(!Rng(0, aIndex, self->iCount - 1))

		User::Panic(_L("USER"), 130); //out of bounds (RArray/RPointerArray)

	return self->iArray + aIndex;

	}

#endif	//__MWSGRAPHICSCONTEXTTODIRECTGDIMAPPINGS_H__