S60 3rd Edition API Reference: aknvolumecontrol.h Source File

00001 /*
00002 * ============================================================================
00003 *  Name         : CAknVolumeControl from Aknvolumecontrol.h
00004 *  Part of      : Avkon
00005 *  Description  : Volume editor class
00006 *  Version      : %version: e003sa01#25 %
00007 *
00008 *  Copyright � 2002-2006 Nokia Corporation.
00009 *  This material, including documentation and any related 
00010 *  computer programs, is protected by copyright controlled by 
00011 *  Nokia Corporation. All rights are reserved. Copying, 
00012 *  including reproducing, storing,  adapting or translating, any 
00013 *  or all of this material requires the prior written consent of 
00014 *  Nokia Corporation. This material also contains confidential 
00015 *  information which may not be disclosed to others without the 
00016 *  prior written consent of Nokia Corporation.
00017 * ============================================================================
00018 */
00019 
00020 #ifndef AKNVOLUMECONTROL_H
00021 #define AKNVOLUMECONTROL_H
00022 
00023 #include <aknnavidecoratorobserver.h>
00024 
00025 #include <AknControl.h>
00026 
00027 class CGulIcon;
00028 class MAknsSkinInstance;
00029 class CVolumeExtension;
00030 
00034 class CAknVolumeControl : public CAknControl, public MAknNaviDecoratorObserver
00035     {
00036 
00037     public:
00038 
00042         IMPORT_C CAknVolumeControl();
00043 
00047         IMPORT_C ~CAknVolumeControl();
00048 
00054         IMPORT_C void SetValue(TInt aValue);
00055 
00061         IMPORT_C TInt Value() const;
00062 
00063         
00064         
00065     public: // from CCoeControl
00066 
00074         TSize MinimumSize();
00075    
00085         TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent, TEventCode aType);
00086         
00094         IMPORT_C void ConstructFromResourceL(TResourceReader& aReader);
00095         
00103         IMPORT_C void HandleResourceChange(TInt aType);
00104         
00114         IMPORT_C static CFbsBitmap* CreateBitmapL(TInt aValue);
00115     
00125         IMPORT_C static CGulIcon* CreateSetStyleListBoxIconL( TInt aValue );
00126         
00127     protected: // from CCoeControl
00128 
00134         void SizeChanged();
00135         
00143         void Draw(const TRect& aRect) const;
00144         
00145     public:
00146 
00154         IMPORT_C void HandlePointerEventL(const TPointerEvent& aPointerEvent);
00155 
00163         IMPORT_C void HandleNaviDecoratorEventL( TInt aEventID ); 
00164 
00165     private:
00166     
00170         IMPORT_C void* ExtensionInterface( TUid aInterface );        
00171         
00172     private:
00173         
00177         void SetVolumeLayout(TInt aStyle);
00178         
00182         void StartTimerL();
00183         
00189         static TInt IndicationDrawCallbackL( TAny* aThis );
00190                 
00195                 void SmallDirectionIndicationL();
00196 
00200         void CreateNaviIconL();
00201         
00202         // Refactored: Used for drawing different styles.
00203         void DrawSettingsStyleVolumeControl( const TRect& aRect ) const;
00204         void DrawDefaultStyleVolumeControl( const TRect& aRect ) const;
00205         void DrawSkinnedDefaultStyleVolumeControl( const TRect& aRect ) const;
00206         void DrawDynRangeSettingsStyleVolumeControl( const TRect& aVolumeArea ) const;
00207     
00216         void CalcVolumeIconAreas( const TInt aVolume, 
00217                                   const TRect& aDrawArea,
00218                                   TRect& aActiveRect, 
00219                                   TRect& aInactiveRect ) const;
00220 
00228         TInt CAknVolumeControl::ScaledValue() const;
00229         
00230 
00231     private:        
00232     
00233         CFbsBitmap*         iBitmap;
00234         CFbsBitmap*         iMaskBitmap;
00235         TPoint              iStartPos;
00236         CVolumeExtension*   iExtension;
00237         TInt                iSpare1;
00238         TPoint              iBmpPos;
00239         TInt                iValue;
00240         TInt                iStyle;
00241     };
00242 
00243 // AKNVOLUMECONTROL_H
00244 #endif