1 /*******************************************************************************

     2  * Copyright (c) 2005, 2010 Nokia Corporation and/or its subsidiary(-ies).

     3  * All rights reserved. This program and the accompanying materials

     4  * are made available under the terms of the Eclipse Public License v1.0

     5  * which accompanies this distribution, and is available at

     6  * http://www.eclipse.org/legal/epl-v10.html

     7  *

     8  * Contributors:

     9  *     Nokia Corporation - S60 implementation

    10  *******************************************************************************/

    11 

    12 

    13 #ifndef SWTCONTROLHELPER_H

    14 #define SWTCONTROLHELPER_H

    15 

    16 

    17 #include <coedef.h>

    18 #include <eiksbobs.h>

    19 #include <w32std.h>

    20 #include "eswtwidgetscore.h"

    21 

    22 

    23 class CCoeControl;

    24 class CEikScrollBarFrame;

    25 class CSwtScrollBar;

    26 class CWindowGc;

    27 

    28 

    29 /**

    30  * SwtControlHelper

    31  * @lib eswt

    32  */

    33 NONSHARABLE_CLASS(SwtControlHelper)

    34 {

    35 // Methods

    36 public:

    37     /**

    38      * Copies a bitmap.

    39      * @param aBitmap The source bitmap for copy operation.

    40      * @param aTargetSize Optional target size if scaling is desired.

    41      * @return Pointer to the copy. Copy is owned by the caller.

    42      */

    43     static CFbsBitmap* GetCopyOfBitmapLC(const CFbsBitmap* aBitmap,

    44                                          const TSize& aTargetSize = TSize(-1, -1));

    45 

    46     /**

    47      * Copies a bitmap.

    48      * @param aBitmap The source bitmap for copy operation.

    49      * @param aTargetSize Optional target size if scaling is desired.

    50      * @return Pointer to the copy. Copy is owned by the caller.

    51      */

    52     static CFbsBitmap* GetCopyOfBitmapL(const CFbsBitmap* aBitmap,

    53                                         const TSize& aTargetSize = TSize(-1, -1));

    54 

    55     /**

    56      * Copies a bitmap inverting it in the case it's monochrome.

    57      * @param aBitmap The source bitmap for copy operation.

    58      * @param aTargetSize Optional target size if scaling is desired.

    59      * @return Pointer to the copy. Copy is owned by the caller.

    60      */

    61     static CFbsBitmap* GetInvertedCopyOfMonoBitmapLC(const CFbsBitmap* aBitmap,

    62             const TSize& aTargetSize = TSize(-1, -1));

    63 

    64     /**

    65      * Copies a bitmap inverting it in the case it's monochrome.

    66      * @param aBitmap The source bitmap for copy operation.

    67      * @param aTargetSize Optional target size if scaling is desired.

    68      * @return Pointer to the copy. Copy is owned by the caller.

    69      */

    70     static CFbsBitmap* GetInvertedCopyOfMonoBitmapL(const CFbsBitmap* aBitmap,

    71             const TSize& aTargetSize = TSize(-1, -1));

    72 

    73     /**

    74      * Retrieves the clipboard's text content.

    75      * It is up to the caller to free the descriptor by calling

    76      * CleanupStack::PopAndDestroy() if the descriptor's

    77      * pointer is not NULL.

    78      * @return A descriptor containing the clipboard's content.

    79      */

    80     static TPtr GetClipboardTextContentLC();

    81 

    82     /**

    83      * Returns size for a bitmap that is aspect ratio scaled to fit inside

    84      * aMaxDestSize if aSourceSize > aMaxDestSize

    85      * @param aSourceSize The source bitmap size.

    86      * @param aMaxDestSize Maximum size for the bitmap.

    87      * @return Resulting size. If any scaling was needed, it is done so

    88      *         that the aspect ratio does not change.

    89      */

    90     static TSize GetAspectRatioScaledBitmapSize(const TSize& aSourceSize,

    91             const TSize& aMaxDestSize);

    92 };

    93 

    94 

    95 #endif // SWTCONTROLHELPER_H