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