imaging/imagingplugins/codecs/WMFCodec/WMFConvert.h
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// Copyright (c) 1999-2009 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 __WMFCONVERT_H__
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#define __WMFCONVERT_H__
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#include "icl/ImagePlugin.h"
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#include "WMFCodec.h"
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#include <w32std.h>
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// Decoder.
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class CWmfReadCodec;
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class CWmfDecoder : public CImageDecoderPlugin
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	{
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public:
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	enum TWmfSubType
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		{
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		EWmfUnknownSubType, EWmfStdSubType, EWmfApmSubType, EWmfClpSubType
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		};
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public:
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 	static CWmfDecoder* NewL();
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 	static CWmfDecoder* NewStdL();
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 	static CWmfDecoder* NewApmL();
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 	static CWmfDecoder* NewClpL();
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	virtual ~CWmfDecoder();
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	virtual void ImageType(TInt aFrameNumber, TUid& aImageType, TUid& aImageSubType) const;
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	CFrameInfoStrings* FrameInfoStringsL(RFs& aFs, TInt aFrameNumber);
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	void EnableMaskGeneration();
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protected:
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	void Cleanup();
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private:
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	CWmfDecoder(TWmfSubType aWmfSubType);
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	void ReadFormatL();
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	void ScanDataL();
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	void ProcessWmfApmHeaderL(const TUint16* aData, TRect& aFrameCoords, TSize& aOverallSize, TSize& aFrameSize);
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	void ProcessWmfClpHeaderL(const TUint16* aData, TRect& aFrameCoords, TSize& aOverallSize, TSize& aFrameSize);
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	void CheckDeviceL();
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	TSize FindSetWindowExtL();
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private:
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	CFbsScreenDevice* iDevice;
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	TInt iWordsExpected;
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	TBool iMaskGenerationEnabled;
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	TWmfSubType iWmfSubType;
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	TBool iRFbsSessionIsOurs;
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	};
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#endif // __WMFCONVERT_H__