// Copyright (c) 1997-2009 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:

// Not for public use

// 

//

#ifndef __IMAGECONVERSIONRESOLVER_H__

#define __IMAGECONVERSIONRESOLVER_H__

#include <e32std.h>

#include <ecom/resolver.h>

#include <ecom/publicregistry.h>

#include <ecom/ecomresolverparams.h>

#include "ImageResolverAPI.h"

/**

 * Help sorting of the plugin list for EMatchString and EMatchMIMEType

 * by saving the extra sorting criteria.

 *

 */

class TSortImplInfo

	{

public:

	TSortImplInfo(CImplementationInformation *const aImplInfo, TInt aMatchLevel);

	TSortImplInfo(CImplementationInformation *const aImplInfo, TInt aMatchLevel, TInt aOptionsMatchLevel);

public:

	CImplementationInformation *const iImplInfo; //Not owned

	TInt iMatchLevel;

	TInt iOptionsMatchLevel;

	};

/**

 *

 * This is the custom resolver for the Image Conversion Library

 *

 * It selects a plugin by either match string or by image type and sub-type

 * or can be used to return a list of available types or sub-types. In all

 * cases it ignores Disabled plugins and also those that have been superceded

 * by a later version.

 *

 * @since 7.0s

 */

class CImageConversionResolver : public CResolver

	{

public:

	static CImageConversionResolver* NewL(MPublicRegistry& aRegistry);

	~CImageConversionResolver();

	// from CResolver

	TUid IdentifyImplementationL(TUid aInterfaceUid, const TEComResolverParams& aAdditionalParameters) const;

	RImplInfoArray* ListAllL(TUid aInterfaceUid, const TEComResolverParams& aAdditionalParameters) const;

private:

	explicit CImageConversionResolver(MPublicRegistry& aRegistry);

	TUid ResolveL(const RImplInfoArray& aImplementationsInfo, const TEComResolverParams& aAdditionalParameters) const;

	static TInt SortAsending(const TSortImplInfo& aImpInfo1, const TSortImplInfo& aImpInfo2);

	static TInt SortDesending(const TSortImplInfo& aImpInfo1, const TSortImplInfo& aImpInfo2);

	};

#endif // __IMAGECONVERSIONRESOLVER_H__