1 /*

     2 * Copyright (c) 2005 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:    Declares class for frequency band container

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 #ifndef EQUALIZERFREQBANDCONTAINER_H

    22 #define EQUALIZERFREQBANDCONTAINER_H

    23 

    24 //  INCLUDES

    25 #include <AknDialog.h> 

    26 #include "EqualizerFreqBand.h"

    27 #include "EqualizerPrivateConstants.h"

    28 

    29 // FORWARD DECLARATIONS

    30 class CAudioEqualizerUtility;

    31 class CAudioEqualizer;

    32 class CAknsBasicBackgroundControlContext;

    33 

    34 // CLASS DECLARATIONS

    35 

    36 //////////////////////////////////////////////////////////////////////////////

    37 //

    38 // -----> CEqualizerFreqBandContainer(definition)

    39 //

    40 //////////////////////////////////////////////////////////////////////////////

    41 NONSHARABLE_CLASS(CEqualizerFreqBandContainer)  : public CCoeControl

    42     {

    43     public:

    44         /**

    45           * This function is called to create an object of 

    46           * type CEqualizerFreqBandContainer - First phase Constructor

    47           * @since 3.0

    48           * @param aaEqEditingDialog a reference to CEqualizerEditingDialog

    49           * @param aAudEqUtility a pointer to CAudioEqualizerUtility 

    50           * @param aPresetIndex the index of the Preset being edited

    51           * @param aIsActivePreset whether the preset is active or not?

    52           * @param aRect the CEqualizerFreqBandContainer rectangle

    53           */

    54         CEqualizerFreqBandContainer(

    55         CEqualizerEditingDialog* aEqEditingDialog, 

    56         CAudioEqualizerUtility* aAudEqUtility, 

    57         const TInt aPresetIndex, const TBool aIsActivePreset, TRect& aRect,

    58         MEqualizerPresetActivationObserver& aObserver, TInt aPresetKey,

    59         TPresetName& aPresetName ); 

    60         /**

    61          * Destructor

    62          * @since 3.0

    63          */

    64         virtual ~CEqualizerFreqBandContainer();

    65   

    66     public:     

    67         /**

    68          * Handles key events 

    69          * @param aKeyEvent key event.

    70          * @param aType key code

    71          * @return TKeyResponse

    72          */

    73         TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType); 

    74   

    75  

    76    private:  //New Functions

    77         void ConstructL(TRect& aRect);

    78         /**

    79          * This function is used to swap the focus from one control to other

    80          * @since 3.0

    81          * @param aPrevControl Previous control

    82          * @param aNewControl New Control

    83          */

    84         void SwapFocus(CCoeControl* aPrevControl, CCoeControl* aNewControl) ;

    85 

    86         /**

    87          * This function is used to construct the frequency value labels

    88          * @since 3.2

    89          */

    90         void ConstructLabelsL();

    91    

    92    public: // New functions     

    93        /**

    94         * This function is used to set new values for CAudioEqualizerUtility* 

    95         * @since 3.0

    96         * @param aAudEqUtility New pointer to CAudioEqualizerUtility

    97         */

    98         void SetAudioEqualizerL(CAudioEqualizerUtility* aAudEqUtility);

    99         

   100     private:  //Functions from base classes    

   101         /**

   102          * This function is called by the framework whenever a custom control

   103          * is constructed inside the Dialog

   104          */

   105         void ConstructFromResourceL(TResourceReader& aReader);

   106         /**

   107          * Virtual, defined by CCoeControl; replaces the default implementation

   108          * provided by CCoeControl.

   109          */        

   110         void         Draw(const TRect& /*aRect*/) const;

   111 

   112         /**

   113          * Virtual, defined by CCoeControl; replaces the default implementation

   114          * provided by CCoeControl. 

   115          */

   116         TInt         CountComponentControls() const;

   117 

   118         /** Virtual, defined by CCoeControl; replaces the default implementation

   119          * provided by CCoeControl.

   120          */

   121         CCoeControl* ComponentControl(TInt aIndex) const;

   122         /**

   123          *Virtual, defined by CCoeControl; empty implementation provided by

   124          * CCoeControl; full implementation provided by this class

   125          */

   126         void         SizeChanged();

   127         /*

   128          * From CCoeControl Called when a control's focus is changed

   129          */

   130         void FocusChanged(TDrawNow aDrawNow);

   131 

   132         /*

   133 		* From CCoeControl

   134 		* @see CCoeControl

   135 		*/

   136 		TTypeUid::Ptr MopSupplyObject(TTypeUid aId);

   137 		

   138 #ifdef RD_SCALABLE_UI_V2

   139         /*

   140 		* From CCoeControl

   141 		* @see CCoeControl

   142 		*/

   143 		void HandlePointerEventL(const TPointerEvent& aPointerEvent);

   144 #endif //RD_SCALABLE_UI_V2

   145 

   146     private:

   147         // Data members defined and used by this class.

   148         //Array of frequency band pointers  

   149         CArrayPtr<CEqualizerFreqBand>* iFreqBand;

   150         // Stores the currently focussed frequency band

   151         CCoeControl*    iFocussedFreqBand;

   152         // Stores the Index of the currently focussed frequency band

   153         TUint           iIndexOfFocussedFreqBand;

   154         // Used to store a pointer to CEqualizerEditingDialog 

   155         CEqualizerEditingDialog* iEqEditingDialog;

   156         // Used to store a pointer to CAudioEqualizerUtility 

   157         CAudioEqualizerUtility* iAudEqUtility;

   158         // Used to store the preset index

   159         const TInt iPresetIndex;

   160         // Whether the preset displayed is an active preset?

   161         const TBool iIsActivePreset;  

   162         // Rectangle in which to display the control 

   163         TRect& iRect;

   164         // Number of Frequency bands 

   165         TUint iNumberOfFreqBands;

   166         // For skin in the background

   167         CAknsBasicBackgroundControlContext* iBackGround;

   168         //Array of frequence band labels

   169         CArrayPtr<CEikLabel>* iFreqLabels;

   170         

   171         // Observer for changing equalizer presets

   172         MEqualizerPresetActivationObserver& iObserver;

   173         TInt iPresetKey;

   174 

   175         // Used to indicate a band is selected in touch

   176         TBool iBandSelected;

   177 

   178         // Used to store the preset name

   179         TPresetName iPresetName;

   180     

   181     };

   182 

   183 #endif     //EQUALIZERFREQBANDCONTAINER_H

   184 

   185 // End of File