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/*
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* Copyright (c) 2005-2009 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: Render context interface
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*
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*/
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#ifndef MM2GRENDERCONTEXT_H
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#define MM2GRENDERCONTEXT_H
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// INCLUDES
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#include <gdi.h> // TDisplayMode
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#include "M2GUtils.h"
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M2G_NS_START
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// CONSTANTS
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// MACROS
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// DATA TYPES
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// FUNCTION PROTOTYPES
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// FORWARD DECLARATIONS
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// CLASS DECLARATION
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/**
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* Interface class
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*/
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class MM2GRenderContext
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{
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public: // STATIC CONSTANTS
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static const TReal32 KFullOpaque;
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static const TReal32 KFullTransparency;
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static const TUint8 KMaxAlphaValue;
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static const TDisplayMode KDefaultDisplayMode;
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static const TDisplayMode KMaskDisplayMode;
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public: // METHODS
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/**
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* Dtor
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*/
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virtual ~MM2GRenderContext() {};
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/**
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* Binds device's bitmap.
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* @since Series S60 3.1
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* @param aGraphicsHandle Target graphics handle
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* @throws exception if not ok
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*/
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virtual void BindL(TInt& aGraphicsHandle) = 0;
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/**
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* SVG image bitmap is (re)created if needed.
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* @since Series S60 3.1
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* @see MM2GRenderContext::SetRefreshModeL()
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* @throws exception if not ok
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*/
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virtual void InitImageBitmapL() = 0;
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/**
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* Blits an svg and a device bitmaps
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* @since Series S60 3.1
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* @throws M2G_OK if ok
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* @throws exception if not ok
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*/
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virtual void ReleaseL() = 0;
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/**
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* Renders a SVG document at a current time.
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*
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* <p> The rendering is done in 2 steps:
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* <li> render the document on an internal SVG buffer (iSvg)
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* <li> alpha-blend it with the bound graphics target (iGraphicsBitmap)
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*
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* @note if transparency factor is not set, iSvg is simply blitted onto iGraphicsTarget
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*
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* @param aSvgDocumentHandle handle to SVG document
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* @param aCurrentTime the current time of the animation
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* @param aSvgW Svg image viewport width
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* @param aSvgH Svg image viewport height
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* @param aRect contains position about the rendered area
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* @since S60 3.1
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*/
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virtual void RenderLCDUIL(
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TM2GSvgDocumentHandle& aSvgDocHandle,
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const TReal32 aCurrentTime,
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TInt aSvgW,
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TInt aSvgH,
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TM2GRenderRect& aRect) = 0 ;
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virtual void RenderESWTL(
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TM2GSvgDocumentHandle& aSvgDocHandle,
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const TReal32 aCurrentTime,
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TInt aSvgW,
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TInt aSvgH,
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TM2GRenderRect& aRect,
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TBool aUseNativeClear,
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TInt* aReturnData) = 0;
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/**
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* Sets render quality
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* @since Series S60 3.1
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* @param aMode Mode
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* @throws exception if not ok
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*/
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virtual void SetRenderingQualityL(TInt aMode) = 0;
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/**
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* Sets transparency
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* @since Series S60 3.1
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* @param aAlpha Alpha factor
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* @throws exception if not ok
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*/
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virtual void SetTransparency(TReal32 aAlpha) = 0;
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};
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M2G_NS_END
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#endif // MM2GRENDERCONTEXT_H
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