1 /*

     2 * Copyright (c) 2007-2008 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: tuicscrollbarmodel.h

    15 *

    16 */

    17 

    18 #ifndef T_UICSCROLLBARMODEL_H

    19 #define T_UICSCROLLBARMODEL_H

    20 

    21 #include <e32base.h>

    22 

    23 /**

    24  * TUiCScrollBarModel

    25  * 

    26  */

    27 class TUiCScrollBarModel

    28     {

    29 

    30 public:

    31     

    32     /**

    33      * Constructor

    34      */

    35     TUiCScrollBarModel();

    36 

    37 public: // model

    38 

    39     /**

    40      * Set total height

    41      */

    42     void SetHeight( TInt aHeight );

    43     

    44     /**

    45      * Total height

    46      */

    47     TInt Height() const;

    48     

    49     /**

    50      * Set window height

    51      */

    52     void SetWindowHeight( TInt aHeight );

    53     

    54     /**

    55      * Window height

    56      */

    57     TInt WindowHeight() const;

    58     

    59     /**

    60      * Sets top position of the window

    61      */

    62     void SetWindowPosition( TInt aPosition );

    63 

    64     /**

    65      * Top position of the window

    66      */

    67     TInt WindowPosition() const;

    68 

    69     /**

    70      * Height of the thumb

    71      */

    72     TInt ThumbHeight() const;

    73     

    74     /**

    75      * Position of thumb inside the window

    76      */

    77     TInt ThumbPosition() const;

    78     

    79     /**

    80      * Returns ETrue if total height is greater than window height

    81      */

    82     TBool ScrollBarNeeded() const;

    83 

    84 private:

    85     

    86     /**

    87      * Returns minimum thumb height (from layout data)

    88      */

    89     TInt MinimumThumbHeight() const;

    90     

    91     /**

    92      * Returns calculated thumb height. Thumb height is calculated,

    93      * unless this result is smaller than MinimumThumbHeight().

    94      */

    95     TInt CalculatedThumbHeight() const;

    96 

    97 private:

    98 

    99     TInt iHeight;

   100     TInt iWindowHeight;

   101     TInt iWindowPosition;

   102 

   103     };

   104 

   105 #endif /* T_UICSCROLLBARMODEL_H */