--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraapp/generic/inc/CamZoomUpdateManager.h Thu Jan 07 16:18:56 2010 +0200
@@ -0,0 +1,117 @@
+/*
+* Copyright (c) 2003-2008 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: ???????????????????
+*
+*/
+
+#ifndef CCAMZOOMUPDATEMANAGER_H
+#define CCAMZOOMUPDATEMANAGER_H
+
+// INCLUDES
+#include <e32base.h>
+#include "CamAppController.h" // for controller definition
+
+// FORWARD DECLARATIONS
+
+//CLASS DECLARATIONS
+
+/**
+* Camera Zoom Update Class
+*
+* Implements a cooldown period to avoid overtaxing the camera driver with touchscreen zoom updates.
+*
+* @since 5.0
+*/
+class CCamZoomUpdateManager : public CActive
+ {
+ public: // constructors and destructor
+
+ /**
+ * Two-phased constructor.
+ */
+ static CCamZoomUpdateManager* NewL( CCamAppController& aController );
+
+ /**
+ * Destructor.
+ */
+ ~CCamZoomUpdateManager();
+
+ /**
+ * From CActive Does the required action (calls the observer)
+ */
+ void SetZoomValue( TInt aValue );
+
+ protected: // from base classes
+
+ /**
+ * From CActive Does the required action (calls the observer)
+ */
+ void RunL();
+
+ /**
+ * From CActive Cancels pending actions
+ */
+ void DoCancel();
+
+ private: // constructor
+
+ /**
+ * C++ default constructor.
+ */
+ CCamZoomUpdateManager( CCamAppController& aController );
+
+ /**
+ * Symbian 2nd phase constructor
+ */
+ void ConstructL();
+
+ /**
+ * Notify the controller and SetActive
+ */
+ void UpdateAndStartWait();
+
+ /**
+ * Get delay values from cenrep
+ */
+ void ReadDelayValuesL();
+
+ private: // data
+
+ // timer used to facilitate cooldown period
+ RTimer iTimer;
+
+ // time used to force update if active object gets starved
+ TTime iCooldownStart;
+
+ // the value to give to the controller
+ TInt iValue;
+
+ // handle outstanding update requests
+ TBool iDelayedUpdate;
+
+ // reference to the controller used for setting the zoom
+ CCamAppController& iController;
+
+ // Variated values for cooldown period inbetween
+ // camera driver updates
+ TInt iCamZoomCooldown;
+ TInt iCamMaxZoomCooldown;
+
+ };
+
+#endif
+
+// End of File
+
+