/*

* Copyright (c) 2002-2007 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:  Virtual Phonebook sort order that is needed in view creation.

*

*/

#ifndef CVPBKSORTORDER_H

#define CVPBKSORTORDER_H

// INCLUDES

#include <e32base.h>

#include <mvpbkfieldtype.h>

// FORWARD DECLARATIONS

class TResourceReader;

/**

 * Virtual Phonebook sort order.

 * This class can be used to create a sort order, which is needed

 * when creating Virtual Phonebook views. The sort order determines

 * how the view is sorted by setting a field type priority list.

 */

class CVPbkSortOrder : 

        public CBase,

        public MVPbkFieldTypeList

    {

    public:

        /**

         * Constructs new sort order from a 

         * VPBK_FIELD_TYPE_MAPPING_LIST resource.

         *

         * @param aReader   Resource reader pointing to a 

         *                  VPBK_FIELD_TYPE_MAPPING_LIST resource.

         * @param aMasterFieldTypeList  Master field type list types from 

         *                              the resource are mapped against.

         * @exception   KErrNotFound if a matching field type is not 

         *              found from aFieldTypeList.

         */

        IMPORT_C static CVPbkSortOrder* NewL(

                TResourceReader& aReader, 

                const MVPbkFieldTypeList& aMasterFieldTypeList);

        /**

         * Creates a new sort order from an existing one.

         *

         * @param aSortOrder    The sort order to duplicate.

         */

        IMPORT_C static CVPbkSortOrder* NewL(

                const MVPbkFieldTypeList& aSortOrder);

        /**

         * Destructor.

         */

        ~CVPbkSortOrder();

    public: // Interface

        /**

         * Reserves aSortOrderLength items for the sort order length.

         * This quarantees that following Set() call will not leave because of

         * memory allocation failure. If more than aSortOrderLength items are

         * provided in following Set() calls, rest of the field types are ignored.

         *

         * @param aSortOrderLength  Number of field types to reserve space for.

         * @exception Panics if aSortOrderLength <= 0

         */

        IMPORT_C void SetReserveL(TInt aSortOrderLength);

        /**

         * Sets new fields types for this sort order from the list.

         * This will not leave because SetReserveL has to be called in advance to

         * reserve space for sort order field types.

         *

         * @param aSortOrder    Priority ordered list of field types 

         *                      used as the sort order.

         * @precond SetReserveL called with a proper sort order length.

         */

        IMPORT_C void Set(const MVPbkFieldTypeList& aSortOrder);

    public: // From MVPbkFieldTypeList

        TInt FieldTypeCount() const;

        const MVPbkFieldType& FieldTypeAt(TInt aIndex) const;

        TBool ContainsSame(const MVPbkFieldType& aFieldType) const;

        TInt MaxMatchPriority() const;

        const MVPbkFieldType* FindMatch(const TVPbkFieldVersitProperty& aMatchProperty,

                TInt aMatchPriority) const;

        const MVPbkFieldType* FindMatch(

                TVPbkNonVersitFieldType aNonVersitType) const;

        const MVPbkFieldType* Find(TInt aFieldTypeResId) const;

    private: // Implementation

        CVPbkSortOrder();

        void ConstructL(TResourceReader& aReader, 

                const MVPbkFieldTypeList& aMasterFieldTypeList);

        void ConstructL(const MVPbkFieldTypeList& aSortOrder);

    private:

        ///Own: Maximum sort order length

        TInt iMaxSortOrderLength;

        ///Ref: Sort order array

        RPointerArray<MVPbkFieldType> iSortOrder;

        ///Own: Max match priority

        TInt iMaxMatchPriority;

    };

#endif // CVPBKSORTORDER_H

// End of file