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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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// Interface for Render Stage Screen Abstraction
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//
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//
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/**
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@publishedPartner
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@prototype
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*/
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#ifndef WSSCREENDEVICE_H
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#define WSSCREENDEVICE_H
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#include <w32std.h>
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#include <graphics/wsgraphicdrawerinterface.h>
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/** Render Stage Palette support.
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This interface is intended to be optionally provided by a Render Stage
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when the pixel target can provide a Colour Palette. Not all pixel targets have
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this feature, for example OpenVG only targets.
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@publishedPartner
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@prototype
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*/
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class MWsPalette : public MWsObjectProvider
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{
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public:
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DECLARE_WS_TYPE_ID(KMWsPalette)
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virtual void PaletteAttributes(TBool& aModifiable,TInt& aNumEntries) const = 0;
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virtual TInt GetPalette(CPalette*& aPalette) const = 0;
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virtual TInt SetCustomPalette(const CPalette* aPalette) = 0;
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};
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/** Render Stage Screen Device abstraction.
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Render Stages provide this interface as an abstraction of the target screen.
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The screen may not be pixel based, in which case read back of pixel data may
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not be a reflection of what appears on the screen. The screen might also only
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be partially readable, for example external video surfaces may be blanked out
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when a read back is done. The intention of the CopyScreenToBitmap methods is
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to provide a means to obtain a snapshot of the entire screen for architectures
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where a composition of the screen can be done once followed by a read back
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of the entire screen, as opposed to servicing a sequence of GetScanLine calls
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which may be prohibitively expensive.
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@publishedPartner
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@prototype
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*/
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class MWsScreenDevice : public MWsObjectProvider
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{
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public:
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DECLARE_WS_TYPE_ID(KMWsScreenDevice)
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virtual TInt ScreenNumber() const = 0;
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virtual TDisplayMode DisplayMode() const = 0;
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virtual TSize SizeInPixels() const = 0;
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virtual TSize SizeInTwips() const = 0;
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virtual TRect PointerRect() const = 0;
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virtual void GetPixel(TRgb& aColor,const TPoint& aPixel) const = 0;
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virtual void GetScanLine(TDes8& aScanLine,const TPoint& aStartPixel,TInt aPixelLength, TDisplayMode aDispMode) const = 0;
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virtual TBool RectCompare(const TRect& aRect1, const TRect& aRect2) const = 0;
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virtual void CopyScreenToBitmapL(CFbsBitmap* aBitmap, const TRect& aRect) const = 0;
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virtual void ClearDisplay(TRgb aBackColor)=0;
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};
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#endif // WSSCREENDEVICE_H
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