--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/vtuis/videotelui/inc/features/volume/cvtuivolumecontrol.h Wed Sep 01 12:29:12 2010 +0100
@@ -0,0 +1,118 @@
+/*
+* Copyright (c) 2008 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: Volume control adjusts engine side volume values.
+*
+*/
+
+
+
+#ifndef CVTUIVOLUMECONTROL_H
+#define CVTUIVOLUMECONTROL_H
+
+
+#include <e32base.h>
+#include <mvtengcommandobserver.h>
+#include <mvtengaudio.h>
+
+class MVtEngCommandHandler;
+class MVtUiEngineCommandManager;
+class CVtUiFeatureManager;
+
+
+/**
+* Volume control adjusts engine side volume values.
+*
+* @since Series 60 v5.0
+*/
+class CVtUiVolumeControl
+ : public CBase,
+ private MVtEngCommandObserver
+ {
+ public: // Constructors and destructor
+
+ // Type for volume settings.
+ typedef MVtEngAudio::TVtEngOutputVolume TVolume;
+
+ /**
+ * Constructor.
+ *
+ * @param aSelfPtr optional pointer to itself.
+ * @param aCommandHandler command handler.
+ * @param aAudio audio interface.
+ * @param aCommandManager command manager.
+ * @param aFeatureManager Reference to feature manager.
+ */
+ CVtUiVolumeControl(
+ MVtEngCommandHandler& aCommandHandler,
+ MVtEngAudio& aAudio,
+ MVtUiEngineCommandManager& aCommandManager,
+ CVtUiFeatureManager& aFeatureManager );
+
+ /*
+ * 2nd phase constructor
+ */
+ void ConstructL();
+
+ /**
+ * Destructor.
+ */
+ ~CVtUiVolumeControl();
+
+public: // New functions
+
+ // Adjust volume to new value
+ void AdjustVolumeL( TVolume aVolume );
+
+private:
+
+ /**
+ * @see MVtEngCommandObserver::HandleVTCommandPerformedL.
+ */
+ virtual void HandleVTCommandPerformedL(
+ TVtEngCommandId aCommand,
+ const TInt aError );
+
+ // Checks if volume is changed in slider
+ TBool IsVolumeChangedL();
+
+private:
+
+ // Reference to command handler.
+ MVtEngCommandHandler& iCommandHandler;
+
+ // Reference to audio interface.
+ MVtEngAudio& iAudio;
+
+ // Reference to command manager.
+ MVtUiEngineCommandManager& iCommandManager;
+
+ // ETrue if command is performed.
+ TBool iCommandPerformed;
+
+ // Volume being updated to engine.
+ TVolume iVolume;
+
+ // Volume pointer descriptor.
+ TPtrC8 iVolumePtr;
+
+ // Reference to featuremanager
+ CVtUiFeatureManager& iFeatureManager;
+
+ // Is control adjusting volume
+ TBool iIsActive;
+ };
+
+#endif // CVtUiVolumeControl_H
+
+// End of File