/*

* Copyright (c) 2002-2005 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 CCASMILEYUTIL_H

#define CCASMILEYUTIL_H

// INCLUDE

#include "MCAMessageExtension.h"

#include "CCASmileIconUtility.h"

#include <e32base.h>

#include <gdi.h> // TPictureHeader

// FORWARD DECLARATIONS

class CCASmileIconUtility;

class MCASkinVariant;

class MCAAppUi;

// CLASS DECLARATION

/**

* CCASmileyUtil

*

* Utility for dealing with smileys in editor

*/

class CCASmileyUtil : public CBase, public MCAMessageExtension

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CCASmileyUtil* NewL(  MCASkinVariant& aSkinVariant,

                                     MCAAppUi& aAppUi, TMessageExtensionTypes aType );

        /**

        * Destructor.

        */

        virtual ~CCASmileyUtil();

    private: // From MCAMessageExtension

        /**

        * Inserts icon to editor

        * @param anEditor Reference to editor

        */

        void InsertExtensionL( CEikRichTextEditor& anEditor,

                               TBool& aCancelled );

        /**

        * 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 MCAMessageExtension

         */

        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 MCAMessageExtension

         */

        void ConvertSelectionToStringL( CEikRichTextEditor& aEditor, TBool aPreserve );

        /**

         *	@see MCAMessageExtension

         */

        void Reset();

        /**

         * Informs the extensions about changed size

         * @param aSize

         * @since 3.0

         */

        void SizeChanged( TSize& aSize );

        /**

         *	@see MCAMessageExtension

         */

        void ConvertSelectionToStringL(

            CEikRichTextEditor& aEditor,

            TDes& aResultString,

            TCursorSelection& aSelectionAfterConversion,

            TBool aPreserve );

    private:  // Constructors and destructor

        /**

        * C++ constructor.

        */

        CCASmileyUtil( TMessageExtensionTypes aType );

        /**

        * Second-phased constructor

        */

        void ConstructL( MCASkinVariant& aSkinVariant,

                         MCAAppUi& aAppUi );

    private: // New methods

    private: // Data

        //util for icon/string convertings

        CCASmileIconUtility* iSmileUtil;

        // Doesn't own

        CEikRichTextEditor* iEditor;

        // Count of current smiley icons in editor

        TInt iCurrentCount;

        // Is smiley converted or not

        RPointerArray< CCASmileyInformation > iConvertArray;

    };

#endif  // CCASMILEYUTIL_H