/*

* Copyright (c) 2007-2008 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:  Utility for selecting smile icon and converting

*                between smile id and smile string.

*

*/

#ifndef CIMCVAPPSMILEYUTIL_H

#define CIMCVAPPSMILEYUTIL_H

// INCLUDE

#include "mimcvappmessageextension.h"

#include "cimcvappsmileiconutility.h"

#include <e32base.h>

// FORWARD DECLARATIONS

class CIMCVAppSmileIconUtility;

class MIMCVAppUi;

class MIMCVUiAppSkinVariant;

class CIMCVEngine;

// CLASS DECLARATION

/**

* CIMCVAPPSmileyUtil

*

* Utility for dealing with smileys in editor

*/

class CIMCVAppSmileyUtil : public CBase, public MIMCVAppMessageExtension

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        * aAppUi CIMCVAppUI reference

        * @param aType message extension type

        */

		static CIMCVAppSmileyUtil* NewL( MIMCVUiAppSkinVariant& aSkinVariant,  

                             MIMCVAppUi& aAppUi, 

                             TMessageExtensionTypes aType,

                             CIMCVEngine& aServiceEngine);

        /**

        * Destructor.

        */

        virtual ~CIMCVAppSmileyUtil();

	private: // From MIMCVAPPMessageExtension

        /**

        * Inserts icon to editor

        * @param anEditor Reference to editor

        */

		void InsertExtensionL( CEikRichTextEditor& anEditor,

		                       TBool& aCancelled, TSize size );

		/**

		* Deletes icon from editor

		* @param aEditor Reference to editor

		* @param aPos Position where icon is located

		*/

		void DeleteExtensionL( CEikRichTextEditor& aEditor, TInt aPos );

		/**

		* Converts smiley icons to string smileys

		* @param anEditor Reference to editor

		* @param aDes Text from editor

		*/

		void ExtensionToStringL( CEikRichTextEditor& anEditor, TDes& aDes );

        /**

         *  @see MIMCVAPPMessageExtension	

         */

        void ConvertSelectionToExtensionL( CEikRichTextEditor& aEditor );

        /**

         *  Converts all the extensions in selection area from strings to extensions. 	

         *  @since 3.0

         *  @param aRichText Rich text to be converted

         *  @param aSelection Selection area

         */

        void ConvertSelectionToExtensionL( CRichText& aRichText, TCursorSelection& aSelection );

        /**

         *  @see MIMCVAPPMessageExtension	

         */

        void ConvertSelectionToStringL( CEikRichTextEditor& aEditor, TBool aPreserve );

        /**

         *	@see MIMCVAPPMessageExtension

         */

        void Reset();

        /**         

         * Informs the extensions about changed size

         * @param aSize

         */

        void SizeChanged( TSize& aSize );

        /**

         *	@see MIMCVAPPMessageExtension

         */

        void ConvertSelectionToStringL(

            CEikRichTextEditor& aEditor,

            TDes& aResultString,

            TCursorSelection& aSelectionAfterConversion,

            TBool aPreserve );

       TInt ServiceId() const ;

    private:  // Constructors and destructor

        /**

        * C++ constructor.

        * @param aType Type of TMessageExtensionTypes

        */

        CIMCVAppSmileyUtil( TMessageExtensionTypes aType  );

        /**

        * Second-phased constructor

        */

        void ConstructL( MIMCVUiAppSkinVariant& aSkinVariant, 

                          MIMCVAppUi& aAppUi,

                          CIMCVEngine& aServiceEngine );

    private: // Data

		//util for icon/string convertings

		CIMCVAppSmileIconUtility* iSmileUtil;

		// Doesn't own

		CEikRichTextEditor* iEditor;

        // Count of current smiley icons in editor

		TInt iCurrentCount;

        // Is smiley converted or not

        RPointerArray< CIMCVAppSmileyInformation > iConvertArray;

        // service id

        TInt iServiceId;

    };

#endif  // CIMCVAPPSMILEYUTIL_H