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:  Class for rendering text based indicators on top of viewfinder

    15 *

    16 */

    17 

    18 

    19 #ifndef CAMTEXTITEM_H

    20 #define CAMTEXTITEM_H

    21 

    22 #include <e32std.h>

    23 #include <e32base.h>

    24 #include <AknUtils.h>

    25 

    26 class CFbsBitmap;

    27 class TAknTextComponentLayout;

    28 class CBitmapContext;

    29 

    30 /**

    31  *  Class for rendering text based indicators on top of viewfinder.

    32  *

    33  *  CCamTextItem can be used to render text on the screen in a way

    34  *  that is compatible with S60 Posting based overlays. The text mask

    35  *  is also written in the alpha channel of the screen buffer to allow

    36  *  it to be overlaid on top of the viewfinder.

    37  *

    38  *  @since S60 v5.0

    39  */

    40 class CCamTextItem : public CBase

    41     {

    42 public:

    43     /**

    44      * Two-phased constructor.

    45      */

    46     static CCamTextItem* NewL();

    47 

    48     /**

    49     * Destructor.

    50     */

    51     virtual ~CCamTextItem();

    52 

    53 public:

    54     /**

    55      * Set the layout for the text item.

    56      * 

    57      * @since S60 v5.0

    58      * @param aParentRect Rectangle for the parent layout item

    59      * @param aLayout     A TAknTextComponentLayout containing the layout

    60      *                    details for this item. Usually this can be retrieved

    61      *                    using the AknLayout2 API.

    62      */

    63     void SetLayoutL( const TRect& aParentRect, const TAknTextComponentLayout& aLayout );

    64 

    65     /**

    66      * Set the text content for the text item.

    67      *

    68      * @since S60 v5.0

    69      * @param aText New text for this item. There are no size limitations. A

    70      *              local copy if the text is created

    71      */

    72     void SetTextL( const TDesC& aText );

    73 

    74     /**

    75      * Render this text in a bitmap based graphics context.

    76      *

    77      * @since S60 v5.0

    78      * @param aBitmapContext Graphics context to draw into.

    79      */

    80     void Draw( CBitmapContext& aBitmapContext ) const;

    81 

    82 private:

    83     

    84     CCamTextItem();

    85 

    86     void ConstructL();

    87 

    88 private: // data

    89 

    90     TAknLayoutText iLayout;

    91 

    92     // own

    93     HBufC* iText;

    94 

    95     };

    96 

    97 #endif // CAMTEXTITEM_H