devsoundextensions/effects/SrcLocation/SourceLocationProxy/Src/SourceLocationProxy.cpp
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     1 /*
       
     2 * Copyright (c) 2004 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:   Implementation of the bassboost proxy class
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 
       
    21 // INCLUDE FILES
       
    22 
       
    23 #ifdef _DEBUG
       
    24 #include <e32svr.h>
       
    25 #endif
       
    26 
       
    27 #include "SourceLocationProxy.h"
       
    28 #include "SourceLocationEventObserver.h"
       
    29 #include <CustomInterfaceUtility.h>
       
    30 
       
    31 
       
    32 // ============================ MEMBER FUNCTIONS ===============================
       
    33 
       
    34 // -----------------------------------------------------------------------------
       
    35 // CSourceLocationProxy::CSourceLocationProxy
       
    36 // C++ default constructor can NOT contain any code, that
       
    37 // might leave.
       
    38 // -----------------------------------------------------------------------------
       
    39 //
       
    40 CSourceLocationProxy::CSourceLocationProxy(
       
    41 	TMMFMessageDestinationPckg aMessageHandler,
       
    42 	MCustomCommand& aCustomCommand,
       
    43 	CCustomInterfaceUtility* aCustomInterfaceUtility )
       
    44 	: 	iCustomCommand(&aCustomCommand),
       
    45 		iMessageHandler(aMessageHandler),
       
    46 		iCustomInterfaceUtility(aCustomInterfaceUtility)
       
    47 
       
    48     {
       
    49     }
       
    50 
       
    51 // Destructor
       
    52 CSourceLocationProxy::~CSourceLocationProxy()
       
    53     {
       
    54     // Remove the custom interface message handler before we destroy the proxy.
       
    55     if(iCustomInterfaceUtility)
       
    56         iCustomInterfaceUtility->RemoveCustomInterface(iMessageHandler);
       
    57 	delete iSourceLocationEventObserver;
       
    58 	delete iCustomInterfaceUtility;
       
    59 	}
       
    60 
       
    61 // -----------------------------------------------------------------------------
       
    62 // CSourceLocationProxy::NewL
       
    63 // Static function for creating an instance of the SourceLocation object.
       
    64 // -----------------------------------------------------------------------------
       
    65 //
       
    66 EXPORT_C CSourceLocationProxy* CSourceLocationProxy::NewL(
       
    67 	TMMFMessageDestinationPckg aMessageHandler,
       
    68     MCustomCommand& aCustomCommand,
       
    69     CCustomInterfaceUtility* aCustomInterfaceUtility )
       
    70     {
       
    71     CSourceLocationProxy* self = new (ELeave) CSourceLocationProxy(aMessageHandler, aCustomCommand, aCustomInterfaceUtility);
       
    72     CleanupStack::PushL(self);
       
    73     self->ConstructL();
       
    74     CleanupStack::Pop(self);
       
    75     return self;
       
    76 	}
       
    77 
       
    78 // -----------------------------------------------------------------------------
       
    79 // CSourceLocationProxy::ConstructL
       
    80 // -----------------------------------------------------------------------------
       
    81 //
       
    82 void CSourceLocationProxy::ConstructL()
       
    83     {
       
    84     iSourceLocationEventObserver = CSourceLocationEventObserver::NewL(iMessageHandler, *iCustomCommand, *this);
       
    85     StartObserver();
       
    86 
       
    87     TEfLocationDataPckg dataPckgFrom;
       
    88     // sends a message to fetch initial data.
       
    89 	iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)ESlfInitialize, KNullDesC8, KNullDesC8, dataPckgFrom);
       
    90 	SetEffectData(dataPckgFrom);
       
    91 	}
       
    92 
       
    93 
       
    94 // -----------------------------------------------------------------------------
       
    95 // CSourceLocationProxy::ApplyL
       
    96 // Apply the bassboost settings.
       
    97 // -----------------------------------------------------------------------------
       
    98 //
       
    99 EXPORT_C void CSourceLocationProxy::ApplyL()
       
   100 	{
       
   101 #ifdef _DEBUG
       
   102     RDebug::Print(_L("CSourceLocationProxy::Apply"));
       
   103 #endif
       
   104 
       
   105 	if (iHaveUpdateRights )
       
   106 		{
       
   107 		iLocationData.iEnabled = iEnabled;
       
   108 		iLocationData.iEnforced = iEnforced;
       
   109 		iLocationData.iHaveUpdateRights = iHaveUpdateRights;
       
   110 
       
   111 		iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)ESlfApply, DoEffectData(), KNullDesC8);
       
   112 		}
       
   113 	else
       
   114 		{
       
   115 		User::Leave(KErrAccessDenied);
       
   116 		}
       
   117 	}
       
   118 
       
   119 // -----------------------------------------------------------------------------
       
   120 // CSourceLocationProxy::StartObserver
       
   121 // Starts the event observer. The event observer monitors asynchronous events
       
   122 // from the message handler.
       
   123 // -----------------------------------------------------------------------------
       
   124 //
       
   125 void CSourceLocationProxy::StartObserver()
       
   126 	{
       
   127 #ifdef _DEBUG
       
   128     RDebug::Print(_L("CSourceLocationProxy::StartObserver"));
       
   129 #endif
       
   130 
       
   131 	iSourceLocationEventObserver->Start();
       
   132 	}
       
   133 
       
   134 // -----------------------------------------------------------------------------
       
   135 // CSourceLocationProxy::SourceLocationEvent
       
   136 // Checks which data member has changed and notify the observers.
       
   137 // -----------------------------------------------------------------------------
       
   138 //
       
   139 void CSourceLocationProxy::SourceLocationEvent(
       
   140 	const TDesC8& aBuffer )
       
   141 	{
       
   142 #ifdef _DEBUG
       
   143     RDebug::Print(_L("CSourceLocationProxy::SourceLocationEvent"));
       
   144 #endif
       
   145 
       
   146 	TEfLocationDataPckg dataPckgFrom;
       
   147 	dataPckgFrom.Copy(aBuffer);
       
   148 	TEfLocation newLocationData = dataPckgFrom();
       
   149 
       
   150 	TUint8 event = 0;
       
   151 
       
   152 	if ( newLocationData.iEnabled != iLocationData.iEnabled )
       
   153 		{
       
   154 		iLocationData.iEnabled = newLocationData.iEnabled;
       
   155 		iEnabled = newLocationData.iEnabled;
       
   156 		if ( iLocationData.iEnabled )
       
   157 			{
       
   158 			event = MAudioEffectObserver::KEnabled;
       
   159 			}
       
   160 		else
       
   161 			{
       
   162 			event = MAudioEffectObserver::KDisabled;
       
   163 			}
       
   164 		}
       
   165 	else if ( newLocationData.iEnforced != iLocationData.iEnforced )
       
   166 		{
       
   167 		iLocationData.iEnforced = newLocationData.iEnforced;
       
   168 		iEnforced = newLocationData.iEnforced;
       
   169 		if ( iLocationData.iEnforced )
       
   170 			{
       
   171 			event = MAudioEffectObserver::KEnforced;
       
   172 			}
       
   173 		else
       
   174 			{
       
   175 			event = MAudioEffectObserver::KNotEnforced;
       
   176 			}
       
   177 		}
       
   178 	else if ( newLocationData.iHaveUpdateRights != iLocationData.iHaveUpdateRights )
       
   179 		{
       
   180 		iLocationData.iHaveUpdateRights = newLocationData.iHaveUpdateRights;
       
   181 		iHaveUpdateRights = newLocationData.iHaveUpdateRights;
       
   182 		if ( iLocationData.iHaveUpdateRights )
       
   183 			{
       
   184 			event = MAudioEffectObserver::KGainedUpdateRights;
       
   185 			}
       
   186 		else
       
   187 			{
       
   188 			event = MAudioEffectObserver::KLostUpdateRights;
       
   189 			}
       
   190 		}
       
   191 	else if ( newLocationData.iXCoordinate != iLocationData.iXCoordinate )
       
   192 			{
       
   193 			iLocationData.iXCoordinate = newLocationData.iXCoordinate;
       
   194 			event = MSourceLocationObserver::KLocationCartesianChanged;
       
   195 			}
       
   196 	else if ( newLocationData.iYCoordinate != iLocationData.iYCoordinate )
       
   197 			{
       
   198 			iLocationData.iYCoordinate = newLocationData.iYCoordinate;
       
   199 			event = MSourceLocationObserver::KLocationCartesianChanged;
       
   200 			}
       
   201 	else if ( newLocationData.iZCoordinate != iLocationData.iZCoordinate )
       
   202 			{
       
   203 			iLocationData.iZCoordinate = newLocationData.iZCoordinate;
       
   204 			event = MSourceLocationObserver::KLocationCartesianChanged;
       
   205 			}
       
   206 	else if ( newLocationData.iAzimuth != iLocationData.iAzimuth )
       
   207 			{
       
   208 			iLocationData.iAzimuth = newLocationData.iAzimuth;
       
   209 			event = MSourceLocationObserver::KLocationSphericalChanged;
       
   210 			}
       
   211 	else if ( newLocationData.iElevation != iLocationData.iElevation )
       
   212 			{
       
   213 			iLocationData.iElevation = newLocationData.iElevation;
       
   214 			event = MSourceLocationObserver::KLocationSphericalChanged;
       
   215 			}
       
   216 	else if ( newLocationData.iRadius != iLocationData.iRadius )
       
   217 			{
       
   218 			iLocationData.iRadius = newLocationData.iRadius;
       
   219 			event = MSourceLocationObserver::KLocationSphericalChanged;
       
   220 			}
       
   221 
       
   222 	if (!event)
       
   223 		return;
       
   224 
       
   225 	for ( TInt i = 0; i < iObservers.Count(); i++ )
       
   226 		{
       
   227 		iObservers[i]->EffectChanged(this, event);
       
   228 		}
       
   229 	}
       
   230 
       
   231 
       
   232 // ========================== OTHER EXPORTED FUNCTIONS =========================
       
   233 
       
   234 // End of File