sl@0: // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #ifndef __MWSGRAPHICSCONTEXTTODIRECTGDIMAPPINGS_H__
sl@0: #define __MWSGRAPHICSCONTEXTTODIRECTGDIMAPPINGS_H__
sl@0: 
sl@0: #include <gdi.h>
sl@0: #include <graphics/wsgraphicscontext.h>
sl@0: #include <graphics/directgditypes.h>
sl@0: 
sl@0: class MWsGraphicsContextToDirectGdiMappings
sl@0: 	{
sl@0: public:
sl@0: 	static DirectGdi::TFillRule Convert(MWsGraphicsContext::TFillRule aFillRule) { return (DirectGdi::TFillRule)aFillRule; }
sl@0: 	static DirectGdi::TPenStyle Convert(MWsGraphicsContext::TPenStyle aPenStyle) { return (DirectGdi::TPenStyle)aPenStyle; }
sl@0: 	static DirectGdi::TBrushStyle Convert(MWsGraphicsContext::TBrushStyle aBrushStyle) { return (DirectGdi::TBrushStyle)aBrushStyle; }
sl@0: 	static DirectGdi::TTextAlign Convert(MWsGraphicsContext::TTextAlign aTextAlign) { return (DirectGdi::TTextAlign)aTextAlign; }
sl@0: 	static DirectGdi::TFontUnderline Convert(MWsGraphicsContext::TFontUnderline aFontUnderline) { return (DirectGdi::TFontUnderline)aFontUnderline; }
sl@0: 	static DirectGdi::TFontStrikethrough Convert(MWsGraphicsContext::TFontStrikethrough aFontStrikethrough) { return (DirectGdi::TFontStrikethrough)aFontStrikethrough; }
sl@0: 	static const DirectGdi::TTextParameters* Convert(const MWsGraphicsContext::TTextParameters* aParam) { return reinterpret_cast<const DirectGdi::TTextParameters*>(aParam); }
sl@0: 	static DirectGdi::TDrawMode LossyConvert(MWsGraphicsContext::TDrawMode aDrawMode)
sl@0: 		{return (aDrawMode==MWsGraphicsContext::EDrawModeWriteAlpha ? DirectGdi::EDrawModeWriteAlpha : DirectGdi::EDrawModePEN);}
sl@0: 	};
sl@0: 
sl@0: 
sl@0: template<class T>
sl@0: class TArrayWrapper : public TArray<T>
sl@0: 	{
sl@0: public:
sl@0: 	TArrayWrapper(const T* aArray, TInt aCount);
sl@0: private:
sl@0: 	static TInt Count(const CBase* aPtr);
sl@0: 	static const TAny* At(const CBase* aPtr, TInt aIndex);
sl@0: private:
sl@0: 	const T* iArray;
sl@0: 	const TInt iCount;
sl@0: 	};
sl@0: 
sl@0: template<class T>
sl@0: TArrayWrapper<T>::TArrayWrapper(const T* aArray, TInt aCount)
sl@0: 	: TArray<T>(TArrayWrapper::Count, TArrayWrapper::At, reinterpret_cast<const CBase*>(this)), iArray(aArray), iCount(aCount)
sl@0: 	{
sl@0: 	//reinterpret_cast above since this class doesn't derive from CBase but TArray is
sl@0: 	//only silly requiring CBase as opposed to TAny, so this is safe
sl@0: 	ASSERT(iArray);
sl@0: 	}
sl@0: 
sl@0: template<class T>
sl@0: TInt TArrayWrapper<T>::Count(const CBase* aPtr)
sl@0: 	{
sl@0: 	//reinterpret_cast since this class doesn't derive from CBase but TArray is
sl@0: 	//only silly requiring CBase as opposed to TAny, so this is safe
sl@0: 	const TArrayWrapper* self = reinterpret_cast<const TArrayWrapper*>(aPtr);
sl@0: 	return self->iCount;
sl@0: 	}
sl@0: 
sl@0: template<class T>
sl@0: const TAny* TArrayWrapper<T>::At(const CBase* aPtr, TInt aIndex)
sl@0: 	{
sl@0: 	//reinterpret_cast since this class doesn't derive from CBase but TArray is
sl@0: 	//only silly requiring CBase as opposed to TAny, so this is safe
sl@0: 	const TArrayWrapper* self = reinterpret_cast<const TArrayWrapper*>(aPtr);
sl@0: 	if(!Rng(0, aIndex, self->iCount - 1))
sl@0: 		User::Panic(_L("USER"), 130); //out of bounds (RArray/RPointerArray)
sl@0: 	return self->iArray + aIndex;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: #endif	//__MWSGRAPHICSCONTEXTTODIRECTGDIMAPPINGS_H__