--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/mmapi_qt/baseline/src.emc/cmmaemcaudiovolumecontrol.cpp	Tue Aug 31 15:09:22 2010 +0300
@@ -0,0 +1,96 @@
+/*
+* Copyright (c) 2002-2007 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:  This class is used for setting volume to audio player
+*
+*/
+
+
+#include <logger.h>
+#include "StreamControl.h"
+#include "EffectControl.h"
+#include "MMControlFactory.h"
+#include "cmmaemcaudiovolumecontrol.h"
+#include "cmmaemcaudioplayer.h"
+
+using multimedia ::KVolumeEffectControl;
+using multimedia ::MStreamControl;
+using multimedia ::MEffectControl;
+using multimedia ::CMultimediaFactory;
+
+EXPORT_C CMMAEMCAudioVolumeControl* CMMAEMCAudioVolumeControl::NewL(CMMAEMCAudioPlayer& aPlayer)
+{
+    CMMAEMCAudioVolumeControl* self = new(ELeave)CMMAEMCAudioVolumeControl(aPlayer);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop(self);
+    return self;
+}
+
+EXPORT_C CMMAEMCAudioVolumeControl::CMMAEMCAudioVolumeControl(CMMAEMCAudioPlayer& aPlayer)
+        : CMMAVolumeControl(&aPlayer), iPlayer(aPlayer)
+{
+}
+
+void CMMAEMCAudioVolumeControl::ConstructL()
+{
+    ConstructBaseL();
+    MStreamControl* streamControl = iPlayer.StreamControl();
+    CMultimediaFactory* mmFactory = iPlayer.MMFactory();
+
+    MEffectControl* temp(NULL);
+    User::LeaveIfError(mmFactory->CreateEffectControl(KVolumeEffectControl, temp));
+    iVolCntrl = static_cast<MVolumeControl*>(temp);
+    User::LeaveIfError(streamControl->AddEffect(*iVolCntrl));
+}
+
+CMMAEMCAudioVolumeControl::~CMMAEMCAudioVolumeControl()
+{
+    MStreamControl* streamControl = iPlayer.StreamControl();
+    CMultimediaFactory* mmFactory = iPlayer.MMFactory();
+
+    if ((NULL != streamControl) && (NULL != iVolCntrl))
+    {
+        streamControl->RemoveEffect(*iVolCntrl);
+    }
+
+    MEffectControl* temp = static_cast<MEffectControl*>(iVolCntrl);
+
+    if (NULL != mmFactory)
+    {
+        mmFactory->DeleteEffectControl(temp);
+    }
+}
+
+EXPORT_C void CMMAEMCAudioVolumeControl::DoSetLevelL(TInt aLevel)
+{
+    TInt maxVolume = 0;
+    User::LeaveIfError(iVolCntrl->GetMaxVolume(maxVolume));
+    // aLevel is the desired volume in range 0..100
+    TInt volLevel = aLevel * maxVolume / KMMAVolumeMaxLevel;
+    User::LeaveIfError(iVolCntrl->SetVolume(volLevel));
+    User::LeaveIfError(iVolCntrl->Apply());
+}
+
+EXPORT_C TInt CMMAEMCAudioVolumeControl::DoGetLevelL()
+{
+    TInt maxVolume = 0;
+    User::LeaveIfError(iVolCntrl->GetMaxVolume(maxVolume));
+    __ASSERT_DEBUG(maxVolume != 0, User::Invariant());
+    TInt volume = 0;
+    User::LeaveIfError(iVolCntrl->GetVolume(volume));
+    // result is in range 0..100
+    return (volume * KMMAVolumeMaxLevel / maxVolume);
+}
+
+//  END OF FILE