// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#ifndef __IMAGEDISPLAYRESOLVRUTILS_H__

#define __IMAGEDISPLAYRESOLVRUTILS_H__

#include <e32base.h>

/** @file

	@internalComponent */

const TInt KIclPluginFrameworkVersionOne = 1;	// default resource format version number

const TInt KIclPluginFrameworkVersionMax = 1;	// current max "legal" version

const TInt KIndexForVersion = 0;		// index in opaque data for the version

const TInt KIndexForFlags = 1;			// index for flags in opaque data

class COpaqueDataParse : public CBase

	{

public:

	static COpaqueDataParse* NewL(const TDesC8& aOpaqueData);

	static COpaqueDataParse* NewLC(const TDesC8& aOpaqueData);

	~COpaqueDataParse();

	TBool OnlyUidsAvail() const;

	TBool IsOpenAgainstSuffix() const;

	TBool IsSetSourceRectSupported() const;

	void EnsureExtnsReadL();

	void EnsureMIMETypesReadL();

	TInt ExtnsCount() const;

	TInt MIMETypesCount() const;

	const TDesC8& Extn (TInt aIndex) const;

	const TDesC8& MIMEType (TInt aIndex) const;

	TInt Version() const;

	TInt Flags() const;

	TUid ImageTypeUid() const;

	TUid ImageSubTypeUid() const;

	TBool CompareUids(COpaqueDataParse* aParse) const;

	TBool CompareUids(TUid aType, TUid aSubType = KNullUid) const;

	static TBool CompareMIMETypes(const TDesC8& aMimeType1, const TDesC8& aMimeType2);

	static TBool CompareFileSuffixL(const TDesC& aFileSuffix1, const TDesC8& aFileSuffix2);

protected:

	COpaqueDataParse(const TDesC8& aOpaqueData);

	void ConstructL();

	void ReadVersion();

	void ReadFlags();

	void ReadUids();

private:

	enum TProcessState

		{

		EVersionProcessed,

		EFlagsProcessed,

		EUidsProcessed,

		EExtnsProcessed,

		EMIMETypesProcessed

		};

	enum TPluginFlags

		{

		EOpenAgainstSuffix		= 0x00000001,

		ESetSourceRectSupported = 0x00000002

		};

	const TDesC8& iOpaqueData;

	TProcessState iState;

	TInt iVersion;

	TInt iFlags;

	TUid iImageTypeUid;

	TUid iImageSubTypeUid;

	TInt iExtnCount;

	TInt iLenOfFlags;				// len of flag field (0 or 2)

	TInt iStartOfUids;				// index for uids in opaque data

	TInt iStartOfNumberOfExtns;		// index in Opaque data for the number of extensions

	TInt iStartOfMimeTypes;

	RArray<TPtrC8> iArray;

	};

// Utility class used in ImageDisplayResolver.dll

// and ImageDisplay.dll.

// Searches for a match of aClientString in aPluginString

// - aPluginString is normally from CImplementationInformation::DataType()

class CImageDisplayResolverUtils : public CBase

	{

public:

	static TBool Match(const TDesC8& aClientString, const TDesC8& aPluginString, TInt& aBytesMatched);

	};

#include "ImageDisplayResolvrUtils.inl"

#endif  // __IMAGEDISPLAYRESOLVRUTILS_H__