--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/amms_qt/ammscontrol/audio3D/src/cammsdistanceattenuationcontrolgroup.cpp	Tue Aug 31 15:09:22 2010 +0300
@@ -0,0 +1,193 @@
+/*
+* Copyright (c) 2005 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:  Group for distance attenuation controls
+*
+*/
+
+
+// INCLUDE FILES
+
+#include "cammsdistanceattenuationcontrolgroup.h"
+#include "cammsbasedistanceattenuationcontrol.h"
+
+// CONSTANTS
+static const TInt KAMMSMinDistance = 1000;
+static const TInt KAMMSRolloffFactor = 1000;
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CAMMSDistanceAttenuationControlGroup::NewLC
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+CAMMSDistanceAttenuationControlGroup*
+CAMMSDistanceAttenuationControlGroup::NewLC()
+{
+    CAMMSDistanceAttenuationControlGroup* self =
+        new(ELeave) CAMMSDistanceAttenuationControlGroup;
+
+    CleanupStack::PushL(self);
+    // calls base class ConstructL
+    self->ConstructL();
+
+    return self;
+}
+
+//Destructor
+CAMMSDistanceAttenuationControlGroup::~CAMMSDistanceAttenuationControlGroup()
+{
+}
+
+// -----------------------------------------------------------------------------
+// CAMMSDistanceAttenuationControlGroup::MaxDistance
+// Returns the maximum distance.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+TInt32 CAMMSDistanceAttenuationControlGroup::MaxDistance() const
+{
+    return iCommited.iMaxDistance;
+}
+
+// -----------------------------------------------------------------------------
+// CAMMSDistanceAttenuationControlGroup::MinDistance
+// Returns the distance where the source is loudest.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+TInt32 CAMMSDistanceAttenuationControlGroup::MinDistance() const
+{
+    return iCommited.iMinDistance;
+}
+
+// -----------------------------------------------------------------------------
+// CAMMSDistanceAttenuationControlGroup::MuteAfterMax
+// Returns how the distance gain behaves for distances beyond
+// the maximum distance.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+TBool CAMMSDistanceAttenuationControlGroup::MuteAfterMax() const
+{
+    return iCommited.iMuteAfterMax;
+}
+
+// -----------------------------------------------------------------------------
+// CAMMSDistanceAttenuationControlGroup::RolloffFactor
+// Returns the rolloff factor for the distance gain.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+TUint32 CAMMSDistanceAttenuationControlGroup::RolloffFactor() const
+{
+    return iCommited.iRolloffFactor;
+}
+
+// -----------------------------------------------------------------------------
+// CAMMSDistanceAttenuationControlGroup::SetParametersL
+// Sets all the 3D audio distance attenuation parameters simultaneously
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+void CAMMSDistanceAttenuationControlGroup::SetParametersL(
+    TInt32 aMinDistance,
+    TInt32 aMaxDistance,
+    TBool aMuteAfterMax,
+    TUint32 aRolloffFactor)
+{
+    // temporary values, moved to the commited variables in CommitL() method
+    iUncommited.iMinDistance = aMinDistance;
+    iUncommited.iMaxDistance = aMaxDistance;
+    iUncommited.iMuteAfterMax = aMuteAfterMax;
+    iUncommited.iRolloffFactor = aRolloffFactor;
+
+    UpdateL(EDistance);
+}
+
+// -----------------------------------------------------------------------------
+// CAMMSDistanceAttenuationControlGroup::TypeSafeControl
+// Get and cast a control. Ownership is not tranferred.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+CAMMSBaseDistanceAttenuationControl*
+CAMMSDistanceAttenuationControlGroup::TypeSafeControl(TInt aIndex) const
+{
+    return static_cast<CAMMSBaseDistanceAttenuationControl*>(Control(aIndex));
+}
+
+// -----------------------------------------------------------------------------
+// CAMMSDistanceAttenuationControlGroup::ClassName
+// Returns class name that identifies this control group.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+const TDesC16& CAMMSDistanceAttenuationControlGroup::ClassName()
+{
+    return KAMMSDistanceAttenuationClassName;
+}
+
+// -----------------------------------------------------------------------------
+// CAMMSDistanceAttenuationControlGroup::CommitL
+// Transfers all the pending parameters to the audio processing system.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+void CAMMSDistanceAttenuationControlGroup::CommitL(TInt aCommit)
+{
+    if (aCommit & EDistance)
+    {
+        TInt controls = ControlCount();
+        for (TInt i = 0; i < controls; i++)
+        {
+            TypeSafeControl(i)->SetParametersL(
+                iUncommited.iMinDistance,
+                iUncommited.iMaxDistance,
+                iUncommited.iMuteAfterMax,
+                iUncommited.iRolloffFactor);
+        }
+        iCommited = iUncommited;
+    }
+}
+
+// -----------------------------------------------------------------------------
+// CAMMSDistanceAttenuationControlGroup::NotifyPlayerAddedL
+// Called by when a new player is added
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+void CAMMSDistanceAttenuationControlGroup::NotifyPlayerAddedL(
+    CMMAPlayer* aPlayer,
+    CMMAControl* aControl)
+{
+    CAMMSAudio3DControlGroup::NotifyPlayerAddedL(aPlayer, aControl);
+
+    CAMMSBaseDistanceAttenuationControl* control =
+        static_cast<CAMMSBaseDistanceAttenuationControl*>(aControl);
+
+    // set the current parameters
+    control->SetParametersL(
+        iCommited.iMinDistance,
+        iCommited.iMaxDistance,
+        iCommited.iMuteAfterMax,
+        iCommited.iRolloffFactor);
+}
+
+// -----------------------------------------------------------------------------
+// CAMMSDistanceAttenuationControlGroup::CAMMSDistanceAttenuationControlGroup
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+CAMMSDistanceAttenuationControlGroup::CAMMSDistanceAttenuationControlGroup()
+        : CAMMSAudio3DControlGroup(KAMMSBaseDistanceAttenuationControl)
+{
+    iCommited.iMinDistance = KAMMSMinDistance;
+    iCommited.iMaxDistance = KMaxTInt;
+    iCommited.iMuteAfterMax = ETrue;
+    iCommited.iRolloffFactor = KAMMSRolloffFactor;
+}
+
+
+//  End of File