/*

* Copyright (c) 2005-2006 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:  

*       MsgEditor Svgt media control - a Message Editor Base control

*

*/

#ifndef MSGSVGTCONTROL_H

#define MSGSVGTCONTROL_H

// INCLUDES

#include <msgmediacontrol.h>

// CONSTANTS

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

class CMsgEditorView;

class TAknsItemID;

class CMsgBitmapControl;

class CMsgSvgUtils;

// CLASS DECLARATION

// ==========================================================

/**

* Message Editor Base control for handling svgt

*/

class CMsgSvgControl : public CMsgMediaControl

    {

    public:  // Constructor and destructor

        /**

        * Two-phased constructor.

        * @param aObserver Control state observer.

        * @param aParent   Parent control.

        *

        * @return new object

        */

        IMPORT_C static CMsgSvgControl* NewL( CMsgEditorView& aParent, 

                                              MMsgAsyncControlObserver* aObserver );

        /**

        * Destructor.

        */

        virtual ~CMsgSvgControl();

    public: // New functions

        /**

        * Loads SVG content indicator icon from specified file using bitmap id and mask id.

        * This indicator icon is superimposed on top of SVG icon.

        *

        * @param aId            Item Id.

        * @param aFileName      Name of the file that includes wanted icon bitmap

        * @param aFileBitmapId  ID of the icon bitmap

        * @param aFileMaskId    ID of the icon mask. -1 (default) if no mask needed.

        */

        IMPORT_C void LoadIndicatorIconL( const TAknsItemID& aId,

                                          const TDesC& aFileName,

                                          const TInt aFileBitmapId,

                                          const TInt aFileMaskId = -1 );

    public: 

        /**

        * From MMsgAsyncControl

        *

        * LoadL

        */  

        void LoadL( RFile& aFileHandle );

        /**

        * From MMsgAsyncControl

        *

        * Cancels the asyncronous operation if it is pending.

        */         

        void Cancel();

        /**

        * From MMsgAsyncControl

        *

        * Closes control. Closing means freeing file

        * specific resources that other application can use the file.

        */         

        void Close(); 

        /**

        * From CMsgMediaControl    

        *

        * PlayL

        */  

        void PlayL();

        /**

        * From CMsgMediaControl    

        *

        * Stop

        */  

        void Stop();

        /**

        * From CMsgMediaControl    

        *

        * PauseL

        */  

        void PauseL();   

    public: // from CMsgBaseControl

        /**

        * Calculates and sets the size of the control and returns new size as

        * reference aSize.

        * From CMsgBaseControl

        */

        void SetAndGetSizeL( TSize& aSize );

    public: // from CCoeControl

        /**

        * Called when size is changed.

        * From CMsgBaseControl

        */

        void SizeChanged();

        /**

        * From CCoeControl. Handles resource change events.

        * @param aType

        */

        void HandleResourceChange( TInt aType );

        /**

        * From CCoeControl Return count of controls be included in this component

        */

        TInt CountComponentControls() const;

        /**

        * From CCoeControl Return pointer to component in question.

        */

        CCoeControl* ComponentControl( TInt aIndex ) const;

        /**

        * From CCoeControl,Draw.

        * @param aRect draw rect

        */

        void Draw( const TRect& aRect ) const;

    private:

        /**

        * C++ default constructor.

        */

        CMsgSvgControl();

        /**

        * constructor

        * @param aFlags - CMsgImageControl::TFlags

        * @param aBaseControlObserver - observer to notify about changes.

        */

        CMsgSvgControl( MMsgBaseControlObserver& aBaseControlObserver );

        /**

        * By default Symbian constructor is private.

        * @param aParent - parent control.

        */

        void ConstructL( CMsgEditorView& aParent,

                         MMsgAsyncControlObserver* aObserver );

        /**

        * Loads the thumbnail without setting the filehandle

        */

        void DoLoadL();

        /**

        * Calculates correct extent for icon control.

        */

        void SetIconExtent();

        /**

        * Calculates correct size for control.

        */

        TSize CalculateControlSize( TSize aProposedSize ) const;

    private: //Data

        RFile               iFileHandle;

        CMsgIconControl*    iSvgIndicator;

        CMsgSvgUtils*       iSvgUtils;

    };

#endif // MSGSVGTCONTROL_H