/*

* Copyright (c) 2004 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:  Records AknLayoutFont registrations. List of pointers to CAknLayoutFont is

*  maintained by AknEnv.

*

*

*/

#ifndef AKNFONTREGISTRY_H

#define AKNFONTREGISTRY_H

#include <e32base.h>

// FORWARD DECLARATIONS

class CFont;

class CAknLayoutFont;

/**

* CAknLayoutFont registration.  This is implemented with an RArray of pointers.  They can be searched

* to give a type check for the client to see if their CFont pointers are actually CAknLayoutFont pointers.

*

*/

NONSHARABLE_CLASS(CAknFontRegistry) : public CBase

    {

public:

    /**

    * Two-phased constructor.

    *

    * @return Fully constructed object if there was no Leave

    */

    static CAknFontRegistry* NewL();

    /** 

    * Called to put the CAknLayoutFont object's pointer in the list

    * @param    aFont   Pointer to a valid CAknLayoutFont-conformant object

    */

    void RegisterFont( const CAknLayoutFont* aFont );

    /** 

    * Called to remove the CAknLayoutFont object's pointer from the list. This will not

    * panic under OOM or if the pointer is not registered.

    * 

    * @param    aFont   Pointer to a valid CAknLayoutFont-conformant object

    */

    void DeRegisterFont( const CAknLayoutFont* aFont );

    /** 

    * Used to find out if a CFont is amoung the registered CAknLayoutFonts

    * @param    aFont   Pointer to a valid CFont-conformant object

    * @return   EFalse  iff the pointer is not in the registed CAknLayoutFont pointers

    */

    TBool IsRegistered( const CFont* aFont ) const;

    /** 

    * Destructor

    *

    */

    virtual ~CAknFontRegistry();

private: 

    /** 

    * Default constructor

    */

    CAknFontRegistry();

    /**

    * @return index of the found font, or KErrNotFound

    */

    TInt FindFont( const CFont* aFont ) const;

private:    // Data

    RPointerArray<CFont> iArray;

    };

#endif // AKNFONTREGISTRY_H