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: cuicscrollbar.h

    15 *

    16 */

    17 

    18 #ifndef C_UICSCROLLBAR_H

    19 #define C_UICSCROLLBAR_H

    20 

    21 #include <alf/alfcontrol.h>

    22 #include <alf/alfbitmapprovider.h>

    23 

    24 #include "muicscrollbar.h"

    25 

    26 // Forward declarations

    27 

    28 class CAlfAnchorLayout;

    29 class CAlfDeckLayout;

    30 class CAlfImageVisual;

    31 class CAlfLayout;

    32 class CAlfTexture;

    33 

    34 /**

    35  * Composite image

    36  */

    37 NONSHARABLE_CLASS( CUiCCompositeImage ) : public CBase

    38     {

    39 public:

    40 

    41     /**

    42      * Leave safe constructor

    43      */

    44     static CUiCCompositeImage* NewL( CAlfControl& aControl, CAlfLayout* aParentLayout,

    45             CAlfTexture& aTop, CAlfTexture& aMiddle, CAlfTexture& aBottom );

    46 

    47     /**

    48      * Destructor

    49      */

    50     ~CUiCCompositeImage();

    51 

    52     /**

    53      * Returns layout for this component

    54      */

    55     CAlfLayout& Layout();

    56 

    57 private:

    58 

    59     CUiCCompositeImage();

    60     void ConstructL( CAlfControl& aControl, CAlfLayout* aParentLayout,

    61             CAlfTexture& aTop, CAlfTexture& aMiddle, CAlfTexture& aBottom );

    62     void SetAnchors();

    63 

    64 private:

    65 

    66     CAlfAnchorLayout* iLayout;

    67     CAlfImageVisual* iTop;

    68     CAlfImageVisual* iMiddle;

    69     CAlfImageVisual* iBottom;

    70 

    71     };

    72 

    73 /**

    74  * CUiCScrollBar

    75  *

    76  */

    77 NONSHARABLE_CLASS( CUiCScrollBar ) : public CAlfControl, public MUiCScrollBar,

    78         public MAlfBitmapProvider

    79     {

    80 

    81 public:

    82 

    83     /**

    84      * Leave safe constructor

    85      */

    86     static CUiCScrollBar* NewL( CAlfEnv& aEnv, CAlfLayout* aParentLayout );

    87 

    88 public: // from MUiCScrollBar

    89 

    90     /**

    91      * @see MUiCScrollBar::Destroy

    92      */

    93     virtual void Destroy();

    94 

    95     /**

    96      * @see MUiCScrollBar::Show

    97      */

    98     virtual void Show( const TBool aShow );

    99 

   100     /**

   101      * @see MUiCScrollBar::UpdateModelL

   102      */

   103     virtual void UpdateModelL( const TUiCScrollBarModel& aModel );

   104 

   105     /**

   106      * @see MUiCScrollBar::ThumbPosition

   107      */

   108     virtual TInt ThumbPosition() const;

   109 

   110     /**

   111      * @see MUiCScrollBar::SetRect

   112      */

   113     virtual void SetRect( const TRect& aRect );

   114 

   115     /**

   116      * @see MUiCScrollBar::Redraw

   117      */

   118     virtual void Redraw();

   119 

   120     /**

   121      * @see MUiCScrollBar::NotifyThemeChanged

   122      */

   123     virtual void NotifyThemeChanged();

   124 

   125     /**

   126      * @see MUiCScrollBar::LayoutHints

   127      */

   128     virtual TInt LayoutHints() const;

   129 

   130 private: // from MAlfEventHandler

   131 

   132     /**

   133      * @see MAlfEventHandler::OfferEventL

   134      */

   135     virtual TBool OfferEventL( const TAlfEvent& aEvent );

   136 

   137 private: // from MAlfBitmapProvider

   138 

   139     /**

   140      * @see MAlfBitmapProvider::ProvideBitmapL

   141      */

   142     virtual void ProvideBitmapL( TInt aId, CFbsBitmap*& aBitmap, CFbsBitmap*& aMaskBitmap );

   143 

   144 private:

   145 

   146     /**

   147      * Destructor

   148      */

   149     ~CUiCScrollBar();

   150 

   151     /**

   152      * Constructor

   153      */

   154     CUiCScrollBar();

   155 

   156     /**

   157      * 2nd constructor

   158      */

   159     void ConstructL( CAlfEnv& aEnv, CAlfLayout* aParentLayout );

   160 

   161     /**

   162      * Sets anchors for background image and thumb

   163      */

   164     void SetAnchors();

   165 

   166     /**

   167      * Sets anchors for background

   168      */

   169     void SetBgAnchors();

   170 

   171     /**

   172      * Sets anchors for thumb

   173      */

   174     void SetThumbAnchors();

   175 

   176 private:

   177 

   178     /**

   179      * Custom events

   180      */

   181     enum TEvent

   182         {

   183         EFadeOut

   184         };

   185 

   186     /**

   187      * Unique bitmaps IDs, make sure these do no overlap with the ones defined

   188      * in UI

   189      */

   190     enum TBitmapId

   191         {

   192         EThumbTop = 0x10000,

   193         EThumbMiddle,

   194         EThumbBottom,

   195         EBackgroundTop,

   196         EBackgroundMiddle,

   197         EBackgroundBottom

   198         };

   199 

   200 private:

   201 

   202     // Container layout

   203     CAlfDeckLayout* iDeck;

   204 

   205     // Scrollbar background layout

   206     CAlfAnchorLayout* iBgLayout;

   207 

   208     // Scrollbar layout

   209     CAlfAnchorLayout* iThumbLayout;

   210 

   211     // Scrollbar background visual

   212     CUiCCompositeImage* iBackGroundVisual;

   213 

   214     // Scrollbar thumb visual

   215     CUiCCompositeImage* iThumbVisual;

   216 

   217     // Scrollbar model

   218     TUiCScrollBarModel iModel;

   219 

   220     };

   221 

   222 #endif /* C_UICSCROLLBAR_H */