sl@0: /*
sl@0: * Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). 
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description:   Implementation of the audio equalizer proxy class
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: // INCLUDE FILES
sl@0: 
sl@0: #ifdef _DEBUG
sl@0: #include <e32svr.h>
sl@0: #endif
sl@0: 
sl@0: #include "AudioEqualizerProxy.h"
sl@0: #include "AudioEqualizerEventObserver.h"
sl@0: #include <CustomInterfaceUtility.h>
sl@0: 
sl@0: 
sl@0: // ============================ MEMBER FUNCTIONS ===============================
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizerProxy::CAudioEqualizerProxy
sl@0: // C++ default constructor can NOT contain any code, that
sl@0: // might leave.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: CAudioEqualizerProxy::CAudioEqualizerProxy(
sl@0: 	TMMFMessageDestinationPckg aMessageHandler,
sl@0: 	MCustomCommand& aCustomCommand,
sl@0: 	CCustomInterfaceUtility* aCustomInterfaceUtility )
sl@0: 	: 	iCustomCommand(&aCustomCommand),
sl@0: 		iMessageHandler(aMessageHandler),
sl@0: 		iCustomInterfaceUtility(aCustomInterfaceUtility)
sl@0: 
sl@0:     {
sl@0:     }
sl@0: 
sl@0: // Destructor
sl@0: CAudioEqualizerProxy::~CAudioEqualizerProxy()
sl@0:     {
sl@0:     // Remove the custom interface message handler before we destroy the proxy.
sl@0:     if(iCustomInterfaceUtility)
sl@0:         iCustomInterfaceUtility->RemoveCustomInterface(iMessageHandler);
sl@0: 	delete iAudioEqualizerEventObserver;
sl@0: 	delete iCustomInterfaceUtility;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizerProxy::NewL
sl@0: // Static function for creating an instance of the Audio Equalizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizerProxy* CAudioEqualizerProxy::NewL(
sl@0: 	TMMFMessageDestinationPckg aMessageHandler,
sl@0:     MCustomCommand& aCustomCommand,
sl@0:     CCustomInterfaceUtility* aCustomInterfaceUtility )
sl@0:     {
sl@0:     CAudioEqualizerProxy* self = new (ELeave) CAudioEqualizerProxy(aMessageHandler, aCustomCommand, aCustomInterfaceUtility);
sl@0:     CleanupStack::PushL(self);
sl@0:     self->ConstructL();
sl@0:     CleanupStack::Pop(self);
sl@0:     return self;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizerProxy::ConstructL
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: void CAudioEqualizerProxy::ConstructL()
sl@0:     {
sl@0: #ifdef _DEBUG
sl@0:     RDebug::Print(_L("CAudioEqualizerProxy::ConstructL"));
sl@0: #endif
sl@0:     iAudioEqualizerEventObserver = CAudioEqualizerEventObserver::NewL(iMessageHandler, *iCustomCommand, *this);
sl@0:     StartObserver();
sl@0:     // sends a message to fetch initial data.
sl@0:     TEfAudioEqualizerDataPckg dataPckgFrom;
sl@0: 	iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefInitialize, KNullDesC8, KNullDesC8, dataPckgFrom);
sl@0: 	SetEffectData(dataPckgFrom);
sl@0: 
sl@0: 	TUint8 band = 0;
sl@0: 	TPckgBuf<TUint8> bandPckg;
sl@0: 	bandPckg() = 0;
sl@0: 
sl@0: 	iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefGetNumberOfBands, KNullDesC8, KNullDesC8, bandPckg);
sl@0: 	band = bandPckg();
sl@0: 
sl@0: 	if ( !band ) // Number of bands should be > 0.
sl@0: 		{
sl@0: 		User::Leave(KErrNotReady);
sl@0: 		}
sl@0: 
sl@0: 	TEfAudioEqualizerBand bandData;
sl@0: 	TEfAudioEqualizerBandDataPckg bandDataPckg;
sl@0: 	TInt8 numberOfBands = band;
sl@0: 	for(TInt i=1; i<=numberOfBands; i++)
sl@0: 		{
sl@0: 		band = i;
sl@0: 		bandPckg() = band;
sl@0: 		iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefInitializeBand, bandPckg, KNullDesC8, bandDataPckg);
sl@0: 		bandData = bandDataPckg();
sl@0: 		if(iBandsData.Append(bandData))
sl@0: 			{
sl@0: 			User::Leave(KErrNoMemory);
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	}
sl@0: 
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizerProxy::ApplyL
sl@0: // Apply the Audio Equalizer settings.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C void CAudioEqualizerProxy::ApplyL()
sl@0: 	{
sl@0: #ifdef _DEBUG
sl@0:     RDebug::Print(_L("CAudioEqualizerProxy::Apply"));
sl@0: #endif
sl@0: 
sl@0: 	if ( !iHaveUpdateRights )
sl@0: 		{
sl@0: 		User::Leave(KErrAccessDenied);
sl@0: 		}
sl@0: 
sl@0: //	TUint32 mask = 1;
sl@0: 	iAudioEqualizerData.iEnabled = iEnabled;
sl@0: 	iAudioEqualizerData.iEnforced = iEnforced;
sl@0: 	iAudioEqualizerData.iHaveUpdateRights = iHaveUpdateRights;
sl@0: 	iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefApply, DoEffectData(), KNullDesC8);
sl@0: 
sl@0: #ifdef _DEBUG
sl@0:     RDebug::Print(_L("CAudioEqualizerProxy::Apply - BandChange = %x"), iBandChange);
sl@0: #endif
sl@0: 	iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefApplyBand, DoBandDataL(1, ETrue), KNullDesC8);
sl@0: 
sl@0: 		iBandChange = 0; // clear flags
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizerProxy::StartObserver
sl@0: // Starts the event observer. The event observer monitors asynchronous events
sl@0: // from the message handler.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: void CAudioEqualizerProxy::StartObserver()
sl@0: 	{
sl@0: #ifdef _DEBUG
sl@0:     RDebug::Print(_L("CAudioEqualizerProxy::StartObserver"));
sl@0: #endif
sl@0: 
sl@0: 	iAudioEqualizerEventObserver->Start();
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizerProxy::AudioEqualizerEvent
sl@0: // Checks which data member has changed and notify the observers.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: void CAudioEqualizerProxy::AudioEqualizerEventL(
sl@0: 	const TDesC8& aBuffer )
sl@0: 	{
sl@0: #ifdef _DEBUG
sl@0:     RDebug::Print(_L("CAudioEqualizerProxy::AudioEqualizerEventL"));
sl@0: #endif
sl@0: 
sl@0: 	TEfAudioEqualizerCombinedDataPckg dataPckgFrom;
sl@0: 	dataPckgFrom.Copy(aBuffer);
sl@0: 	TEfAudioEqualizerCombined newEqualizerCombinedData = dataPckgFrom();
sl@0: 
sl@0: 	TUint8 event = 0;
sl@0: 
sl@0: 	if ( newEqualizerCombinedData.iAudioEqualizerDataValid ) // Equalizer Data Changed
sl@0: 		{
sl@0: 		if ( newEqualizerCombinedData.iEnabled != iAudioEqualizerData.iEnabled )
sl@0: 			{
sl@0: 			iAudioEqualizerData.iEnabled = newEqualizerCombinedData.iEnabled;
sl@0: 			iEnabled = newEqualizerCombinedData.iEnabled;
sl@0: 			if ( iAudioEqualizerData.iEnabled )
sl@0: 				{
sl@0: 				event = MAudioEffectObserver::KEnabled;
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				event = MAudioEffectObserver::KDisabled;
sl@0: 				}
sl@0: 			}
sl@0: 		else if ( newEqualizerCombinedData.iEnforced != iAudioEqualizerData.iEnforced )
sl@0: 			{
sl@0: 			iAudioEqualizerData.iEnforced = newEqualizerCombinedData.iEnforced;
sl@0: 			iEnforced = newEqualizerCombinedData.iEnforced;
sl@0: 			if ( iAudioEqualizerData.iEnforced )
sl@0: 				{
sl@0: 				event = MAudioEffectObserver::KEnforced;
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				event = MAudioEffectObserver::KNotEnforced;
sl@0: 				}
sl@0: 			}
sl@0: 		else if ( newEqualizerCombinedData.iHaveUpdateRights != iAudioEqualizerData.iHaveUpdateRights )
sl@0: 			{
sl@0: 			iAudioEqualizerData.iHaveUpdateRights = newEqualizerCombinedData.iHaveUpdateRights;
sl@0: 			iHaveUpdateRights = newEqualizerCombinedData.iHaveUpdateRights;
sl@0: 			if ( iAudioEqualizerData.iHaveUpdateRights )
sl@0: 				{
sl@0: 				event = MAudioEffectObserver::KGainedUpdateRights;
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				event = MAudioEffectObserver::KLostUpdateRights;
sl@0: 				}
sl@0: 			}
sl@0: 
sl@0: 		}
sl@0: 
sl@0: 	else if ( newEqualizerCombinedData.iAudioEqualizerBandDataValid ) // Equalizer band data changed
sl@0: 		{
sl@0: 		TInt bandId = newEqualizerCombinedData.iBandId-1;
sl@0: 		iBandsData[bandId].iBandLevel = newEqualizerCombinedData.iBandLevel;
sl@0: 		iBandsData[bandId].iBandWidth = newEqualizerCombinedData.iBandWidth;
sl@0: 		iBandsData[bandId].iCenterFrequency = newEqualizerCombinedData.iCenterFrequency;
sl@0: 		iBandsData[bandId].iCrossoverFrequency = newEqualizerCombinedData.iCrossoverFrequency;
sl@0: 		event = MAudioEffectObserver::KSpecificEffectBase + newEqualizerCombinedData.iBandId;
sl@0: 		}
sl@0: 
sl@0: 
sl@0: 
sl@0: 	if (!event)
sl@0: 		return;
sl@0: 
sl@0: 	for ( TInt i = 0; i < iObservers.Count(); i++ )
sl@0: 		{
sl@0: 		iObservers[i]->EffectChanged(this, event);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: 
sl@0: // ========================== OTHER EXPORTED FUNCTIONS =========================
sl@0: 
sl@0: 
sl@0: