mulwidgets/mulcoverflowwidget/inc/mulcoverflowao.h
changeset 0 e83bab7cf002
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mulwidgets/mulcoverflowwidget/inc/mulcoverflowao.h	Thu Dec 17 08:56:02 2009 +0200
@@ -0,0 +1,100 @@
+/*
+* Copyright (c) 2007-2008 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:  Active Object header for CoverFlow
+*
+*/
+
+#ifndef __MULCOVERFLOWAO_H__
+#define __MULCOVERFLOWAO_H__
+
+#include <e32base.h>    // For CTimer
+
+namespace Alf
+	{
+//Forward declarations
+class MulCoverFlowControl;
+
+class MulCoverFlowAo:public CTimer
+	{
+	
+public : // Constructor and Destructor
+    /// @bug critical:avanhata:7/7/2008 this is a symbian-dependent class, 
+    /// need to have two-phase construction
+    /// - otherwise mixing leaves and throws
+	MulCoverFlowAo( MulCoverFlowControl& aControl );
+	
+	~MulCoverFlowAo();
+
+public: //new method
+
+    /**
+     * Keeps moving layout asynchronously until it stopmoving() is called .
+     * The layout will move on to show more items .
+     * 
+     * @param aSpeedPoint Gesture speed point.
+     * @param, aCurrGestureDirection, Current direction of gesture
+     * @param, aFastScrollForKey , if fast scroll due to key event
+     * @param, aAnimationTime , animation time for fast scroll in key event.
+     */
+	void StartMoving(TReal32 aSpeedPoint, int aCurrGestureDirection,bool aFastScrollForKey = false,int aAnimationTime = 0);
+	
+	/**
+	 *  Stop moving the layout.
+	 *
+	 */
+	void StopMoving();
+
+	/**
+	 * Transition time for highlight change in fast scroll
+	 *
+	 * @return, transition time to be used
+	 */	
+	int FastScrollTransitionTime();		
+	
+private: 
+	
+	/**
+	 * Timer call back funtion . Performs animations and moves the layout 
+	 * for a particular distance depending on the length of the swipe
+	 * in a particular time period depending on the speed .
+	 */
+	void RunL();
+	
+private : //new methods
+
+	/**
+	 * Cancel all pending requests.
+	 */ 
+	void StopTimer();
+		
+	/**
+	 *  Increment the highlight with +-1 depending on the swipe direction and informs the 
+	 *  control class to cahnge teh highlight.
+	 */	
+	void ChangeHighLight();
+    
+private: //data
+
+	MulCoverFlowControl& mControl; //doesnt own
+	int mTransitionTime;
+	int mWaitingTime;
+	int mCurrGestureDirection;
+	bool mStarted;
+	}; //end of class.
+	
+	} // End of namespace .
+
+#endif  //__MULCOVERFLOWAO_H__
+
+// End of file