--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmfenh/enhancedmediaclient/Client/src/Components/AudioEffects/EqualizerEffectImpl.h	Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,190 @@
+/*
+* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Project file for EnhancedMediaClient Utility
+*
+*/
+
+
+#ifndef EQUALIZEREFFECTIMPL_H
+#define EQUALIZEREFFECTIMPL_H
+
+#include <e32base.h>
+#include <EqualizerControl.h>
+#include "EffectControlBase.h"
+#include <AudioEqualizerProxy.h>
+#include <MAudioEffectObserver.h>
+
+namespace multimedia
+    {
+	class MControlObserver;
+    class CEqualizerEffect : public CBase,
+                          public MEqualizerControl,
+                          public MAudioEffectObserver,
+                          public CEffectControlBase
+        {
+    public:
+        CEqualizerEffect();
+        ~CEqualizerEffect();
+        TInt PostConstructor();
+
+        // From MControl begins
+        TInt AddObserver( MControlObserver& aObserver );
+        TInt RemoveObserver( MControlObserver& aObserver );
+        TUid Type();
+        TControlType ControlType();  
+        // From MControl ends
+
+        // From MEffectControl begins
+        TInt Apply();
+        // From MEffectControl ends
+        
+        // From MEqualizerEffect begins
+		/**
+        * Get the band level in mB for the specified band
+        * @since 3.0
+        * @param aBand Frequency Band
+        * @return Returns the band level in mB for the specified band
+        */
+		TInt BandLevel( TInt& aBand, TInt& aBandLevel );
+
+		/**
+        * Get the band width in Hz for the specified band.
+        * @since 3.0
+        * @param aBand Frequency Band
+        * @return The band width in Hz for the specified band
+        */
+		TInt BandWidth( TInt& aBand, TInt& aBandWidth );
+
+		/**
+        * Get the center frequency in Hz for a given band
+        * @since 3.0
+        * @param aBand Frequency Band
+        * @return The center frequency in Hz for a given band.
+        */
+		TInt CenterFrequency( TInt& aBand, TInt& aCenterFrequency );
+
+		/**
+        * Get the cross-over frequency between the given frequency band (aBand) and the next band
+        * @since 3.0
+        * @param aBand Frequency Band
+        * @return Crossover frequency.
+        */
+		TInt CrossoverFrequency( TInt& aBand, TInt& aCrossoverFreq );
+
+		/**
+        * Get the dB range in mB for the equalizer
+        * @since 3.0
+        * @param aMin Minimum level in dB
+        * @param aMin Maximum level in dB
+        */
+		TInt DbLevelLimits( TInt& aMin, TInt& aMax );
+
+		/**
+        * Get number of equalizer bands.
+        * @since 3.0
+        * @param -
+        * @return The number of equalizer bands.
+        */
+		TInt NumberOfBands(TInt& aNumberofBands);
+
+		/**
+        * Sets the equalizer band level value in mB, ranging from Min to Max
+        * @since 3.0
+        * @param aBand Frequency Band
+        * @param aLevel band level in dB, ranges from DbLevelLimits()
+        * @return -
+        */
+		TInt SetBandLevel( TInt& aBand, TInt& aLevel );
+
+       // From MEqualizerEffect ends
+
+		// From MAudioEffectControl
+		/**
+        * Disable the effect
+        * @since 5.0
+        */
+		TInt Disable();
+
+		/**
+        * Enable the effect
+        * @since 5.0
+        */
+		TInt Enable();
+
+		/**
+        * Enforce the effect.
+        * @since 5.0
+        * @param aEnforced Indicate the effect is to be enforced or not. ETrue = Enforced.
+        */
+		TInt Enforce( TBool &aEnforced );
+
+		/**
+        * Check if this effect object currently has update rights.
+        * A client can lose update rights in some hardware platforms where there are a limited
+        * number of instances of an effect that can exist at the same time. When an effect instance
+        * has lost update rights the user can still change settings, but any calls to Apply the
+        * settings will be deferred until update rights are regained.
+        * @since 5.0
+        * @return ETrue if this object currently has rights to update the settings of this effect,
+        *         EFalse otherwise.
+        */
+		TInt HaveUpdateRights(TBool &aHaveUpdateRights);
+
+		/**
+        * Check if the effect is enabled
+        * @since 5.0
+        * @return ETrue if the effect is enabled, EFalse if the effect is disabled.
+        */
+		TInt IsEnabled(TBool &aEnabled);
+
+		/**
+        * Check if the effect is enforced.
+        * @since 5.0
+        * @return ETrue if the effect is enforced, EFalse if the effect isn ot enforced.
+        */
+		TInt IsEnforced(TBool &aEnforced);
+
+		/*
+        * Get the unique identifier of the audio effect
+        * @since 5.0
+        * @return Unique identifier of the audio effect object.
+        */
+		TInt Uid(TUid &aUid);
+		// From MAudioEffectControl Ends
+        // MAudioEffectObserver begins
+        void EffectChanged( const CAudioEffect* aObservedEffect, TUint8 aEvent );
+        // MAudioEffectObserver ends
+        
+        // From CEffectControlBase begins
+        void Event( TEffectControlEvent aEvent );
+        // From CEffectControlBase ends
+    
+    private:
+        TInt DoApply();        
+        TInt CreateEffectProxy();
+        TInt DeleteEffectProxy();    
+        TInt SavePreviousSettings();   
+    
+    private:
+        CAudioEqualizerProxy* iEqualizerProxy;
+        CAudioEqualizerProxy* iPrevEqualizerProxy;
+        TMMFMessageDestinationPckg iMsgHndlrHandlePckg;
+        MCustomCommand* iCustomCommand;        
+        RPointerArray<MControlObserver> iObservers;    
+        };
+    } // namespace multimedia
+
+#endif // EQUALIZEREFFECTIMPL_H
+
+// End of file