1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 #ifndef CAMVIEWFINDERGRID_H

    19 #define CAMVIEWFINDERGRID_H

    20 

    21 #include <e32base.h>

    22 

    23 class CBitmapContext;

    24 /**

    25 * Interface for viewfinder grid usage.

    26 */

    27 class MCamVfGridDrawer

    28   {

    29   public:

    30     virtual void  InitL( TAny* aParam ) = 0;

    31 

    32     virtual void  Draw( CBitmapContext& aGc ) const = 0;

    33 

    34     virtual void  Draw( const TRect&          aRect,

    35                               CBitmapContext& aGc    ) const = 0;

    36 

    37     virtual void  SetVisible( TBool aVisible ) = 0;

    38 

    39     virtual TBool IsVisible() const = 0;

    40     

    41     // Essential to be able to destroy via mixin pointer.

    42     // Otherwise delete causes USER 42 panic.

    43     virtual ~MCamVfGridDrawer() 

    44       {}; 

    45   };

    46 

    47 

    48 

    49 /**

    50 * Factory class to instantiate viewfinder grid.

    51 */

    52 class CCamVfGridFactory : public CBase

    53   {

    54   public:

    55     /**

    56     * CreateVfGridDrawer

    57     * @param  aUid The implementation id of grid drawer.

    58     * @return      Pointer to object of the implementing class

    59     *              or NULL if uid not supported.

    60     */

    61     static MCamVfGridDrawer* CreateVfGridDrawerL( TUid aUid );

    62   };

    63 

    64 

    65 #endif