os/mm/devsoundextensions/effects/StereoWidening/StereoWideningProxy/Src/StereoWideningProxy.cpp
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/mm/devsoundextensions/effects/StereoWidening/StereoWideningProxy/Src/StereoWideningProxy.cpp Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,210 @@
1.4 +/*
1.5 +* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).
1.6 +* All rights reserved.
1.7 +* This component and the accompanying materials are made available
1.8 +* under the terms of "Eclipse Public License v1.0"
1.9 +* which accompanies this distribution, and is available
1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.11 +*
1.12 +* Initial Contributors:
1.13 +* Nokia Corporation - initial contribution.
1.14 +*
1.15 +* Contributors:
1.16 +*
1.17 +* Description: Implementation of the Stereo Widening proxy class
1.18 +*
1.19 +*/
1.20 +
1.21 +
1.22 +
1.23 +
1.24 +// INCLUDE FILES
1.25 +
1.26 +#ifdef _DEBUG
1.27 +#include <e32svr.h>
1.28 +#endif
1.29 +
1.30 +#include "StereoWideningProxy.h"
1.31 +#include "StereoWideningEventObserver.h"
1.32 +#include <CustomInterfaceUtility.h>
1.33 +
1.34 +
1.35 +// ============================ MEMBER FUNCTIONS ===============================
1.36 +
1.37 +// -----------------------------------------------------------------------------
1.38 +// CStereoWideningProxy::CStereoWideningProxy
1.39 +// C++ default constructor can NOT contain any code, that
1.40 +// might leave.
1.41 +// -----------------------------------------------------------------------------
1.42 +//
1.43 +CStereoWideningProxy::CStereoWideningProxy(
1.44 + TMMFMessageDestinationPckg aMessageHandler,
1.45 + MCustomCommand& aCustomCommand,
1.46 + CCustomInterfaceUtility* aCustomInterfaceUtility )
1.47 + : iCustomCommand(&aCustomCommand),
1.48 + iMessageHandler(aMessageHandler),
1.49 + iCustomInterfaceUtility(aCustomInterfaceUtility)
1.50 +
1.51 + {
1.52 + }
1.53 +
1.54 +// Destructor
1.55 +CStereoWideningProxy::~CStereoWideningProxy()
1.56 + {
1.57 + // Remove the custom interface message handler before we destroy the proxy.
1.58 + if(iCustomInterfaceUtility)
1.59 + iCustomInterfaceUtility->RemoveCustomInterface(iMessageHandler);
1.60 + delete iStereoWideningEventObserver;
1.61 + delete iCustomInterfaceUtility;
1.62 + }
1.63 +
1.64 +// -----------------------------------------------------------------------------
1.65 +// CStereoWideningProxy::NewL
1.66 +// Static function for creating an instance of the Stereo Widening object.
1.67 +// -----------------------------------------------------------------------------
1.68 +//
1.69 +EXPORT_C CStereoWideningProxy* CStereoWideningProxy::NewL(
1.70 + TMMFMessageDestinationPckg aMessageHandler,
1.71 + MCustomCommand& aCustomCommand,
1.72 + CCustomInterfaceUtility* aCustomInterfaceUtility )
1.73 + {
1.74 + CStereoWideningProxy* self = new (ELeave) CStereoWideningProxy(aMessageHandler, aCustomCommand, aCustomInterfaceUtility);
1.75 + CleanupStack::PushL(self);
1.76 + self->ConstructL();
1.77 + CleanupStack::Pop(self);
1.78 + return self;
1.79 + }
1.80 +
1.81 +// -----------------------------------------------------------------------------
1.82 +// CStereoWideningProxy::ConstructL
1.83 +// -----------------------------------------------------------------------------
1.84 +//
1.85 +void CStereoWideningProxy::ConstructL()
1.86 + {
1.87 +#ifdef _DEBUG
1.88 + RDebug::Print(_L("CStereoWideningProxy::ConstructL"));
1.89 +#endif
1.90 + iStereoWideningEventObserver = CStereoWideningEventObserver::NewL(iMessageHandler, *iCustomCommand, *this);
1.91 + StartObserver();
1.92 + // sends a message to fetch initial data.
1.93 + TEfStereoWideningDataPckg dataPckgFrom;
1.94 + iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAswefInitialize, KNullDesC8, KNullDesC8, dataPckgFrom);
1.95 + SetEffectData(dataPckgFrom);
1.96 + }
1.97 +
1.98 +
1.99 +// -----------------------------------------------------------------------------
1.100 +// CStereoWideningProxy::ApplyL
1.101 +// Apply the Stereo Widening settings.
1.102 +// -----------------------------------------------------------------------------
1.103 +//
1.104 +EXPORT_C void CStereoWideningProxy::ApplyL()
1.105 + {
1.106 +#ifdef _DEBUG
1.107 + RDebug::Print(_L("CStereoWideningProxy::Apply"));
1.108 +#endif
1.109 +
1.110 + if ( !iHaveUpdateRights )
1.111 + {
1.112 + User::Leave(KErrAccessDenied);
1.113 + }
1.114 +
1.115 + iStereoWideningData.iEnabled = iEnabled;
1.116 + iStereoWideningData.iEnforced = iEnforced;
1.117 + iStereoWideningData.iHaveUpdateRights = iHaveUpdateRights;
1.118 + iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAswefApply, DoEffectData(), KNullDesC8);
1.119 + }
1.120 +
1.121 +// -----------------------------------------------------------------------------
1.122 +// CStereoWideningProxy::StartObserver
1.123 +// Starts the event observer. The event observer monitors asynchronous events
1.124 +// from the message handler.
1.125 +// -----------------------------------------------------------------------------
1.126 +//
1.127 +void CStereoWideningProxy::StartObserver()
1.128 + {
1.129 +#ifdef _DEBUG
1.130 + RDebug::Print(_L("CStereoWideningProxy::StartObserver"));
1.131 +#endif
1.132 +
1.133 + iStereoWideningEventObserver->Start();
1.134 + }
1.135 +
1.136 +// -----------------------------------------------------------------------------
1.137 +// CStereoWideningProxy::StereoWideningEvent
1.138 +// Checks which data member has changed and notify the observers.
1.139 +// -----------------------------------------------------------------------------
1.140 +//
1.141 +void CStereoWideningProxy::StereoWideningEvent(
1.142 + const TDesC8& aBuffer )
1.143 + {
1.144 +#ifdef _DEBUG
1.145 + RDebug::Print(_L("CStereoWideningProxy::StereoWideningEvent"));
1.146 +#endif
1.147 +
1.148 + TEfStereoWideningDataPckg dataPckgFrom;
1.149 + dataPckgFrom.Copy(aBuffer);
1.150 + TEfStereoWidening newStereoWideningData = dataPckgFrom();
1.151 +
1.152 + TUint8 event = 0;
1.153 +
1.154 + if ( newStereoWideningData.iEnabled != iStereoWideningData.iEnabled )
1.155 + {
1.156 + iStereoWideningData.iEnabled = newStereoWideningData.iEnabled;
1.157 + iEnabled = newStereoWideningData.iEnabled;
1.158 + if ( iStereoWideningData.iEnabled )
1.159 + {
1.160 + event = MAudioEffectObserver::KEnabled;
1.161 + }
1.162 + else
1.163 + {
1.164 + event = MAudioEffectObserver::KDisabled;
1.165 + }
1.166 + }
1.167 + else if ( newStereoWideningData.iEnforced != iStereoWideningData.iEnforced )
1.168 + {
1.169 + iStereoWideningData.iEnforced = newStereoWideningData.iEnforced;
1.170 + iEnforced = newStereoWideningData.iEnforced;
1.171 + if ( iStereoWideningData.iEnforced )
1.172 + {
1.173 + event = MAudioEffectObserver::KEnforced;
1.174 + }
1.175 + else
1.176 + {
1.177 + event = MAudioEffectObserver::KNotEnforced;
1.178 + }
1.179 + }
1.180 + else if ( newStereoWideningData.iHaveUpdateRights != iStereoWideningData.iHaveUpdateRights )
1.181 + {
1.182 + iStereoWideningData.iHaveUpdateRights = newStereoWideningData.iHaveUpdateRights;
1.183 + iHaveUpdateRights = newStereoWideningData.iHaveUpdateRights;
1.184 + if ( iStereoWideningData.iHaveUpdateRights )
1.185 + {
1.186 + event = MAudioEffectObserver::KGainedUpdateRights;
1.187 + }
1.188 + else
1.189 + {
1.190 + event = MAudioEffectObserver::KLostUpdateRights;
1.191 + }
1.192 + }
1.193 + else if ( newStereoWideningData.iLevel != iStereoWideningData.iLevel )
1.194 + {
1.195 + iStereoWideningData.iLevel = newStereoWideningData.iLevel;
1.196 + event = MStereoWideningObserver::KStereoWideningLevelChanged;
1.197 + }
1.198 +
1.199 + if (!event)
1.200 + return;
1.201 +
1.202 + for ( TInt i = 0; i < iObservers.Count(); i++ )
1.203 + {
1.204 + iObservers[i]->EffectChanged(this, event);
1.205 + }
1.206 + }
1.207 +
1.208 +
1.209 +// ========================== OTHER EXPORTED FUNCTIONS =========================
1.210 +
1.211 +// End of File
1.212 +
1.213 +