/*

* Copyright (c) 2006,2007 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:  Active Object operation for serving server logic requests

*

*/

#ifndef C_LBTCREATETRIGGERAOOPEATION_H

#define C_LBTCREATETRIGGERAOOPEATION_H

// INCLUDE FILES

#include <e32base.h>

#include "lbtcontainerextendedtriggerinfo.h"

#include "lbtaooperationbase.h"

// FORWARD DECLARATIONS

class MLbtAOObserver;

class RMessage2;

// FORWARD DECLARATIONS

class CLbtTriggerEntry;

class CLbtContainer;

class CLbtSettingsManager;

class CLbtContainerTriggerEntry;

class CLbtGeoCircle;

/**

 * Class declaration of active object operation

 * to service client requests comming from

 * server core. The IPC messages are provided to

 * this class to service the request asynchronously

 *

 * @since S60 v4.0

 */

class CLbtCreateTriggerAOOperation : public CLbtAOOperationBase

	{

	public:

		/**

	     * Instantiates a new object of 

	     * CLbtCreateTriggerAOOperation

	     *

	     * @param[in] aObserver reference to the active

	     * object observer

	     * @param[in] aMessage the IPC request which the active 

	     * object has to service. The active object takes responsibility

	     * of completing this IPC request

	     * @param aContainer reference to the container which holds

	     * the reference to the logic processor

	     */

	    static CLbtCreateTriggerAOOperation* NewL( MLbtAOObserver& aObserver,

				    							   const RMessage2& aMessage,

				    							   CLbtContainer& aContainer,

				    							   TInt aClientType,

				    							   CLbtSettingsManager& aSettingsManager );

	    /**

	     * Destructor

	     *

	     */

	    ~CLbtCreateTriggerAOOperation();

	    /**

		 * Cancels create trigger operation

		 *

		 */

		void CancelCreateTrigger();

	private:

		/**

	     * 2nd phase constuctor for instantiating member variables

	     *

	     */

		void ConstructL();

		/**

	     * Default C++ Constructor

	     *

	     * @param[in] aObserver reference to the active object observer

	     * @param[in] aMessage the IPC request which the active 

	     * object has to service. The active object takes responsibility

	     * of completing this IPC request

	     * @param aContainer reference to the container which holds

	     * the reference to the logic processor

	     */

	    CLbtCreateTriggerAOOperation( MLbtAOObserver& aObserver, 

				    				  const RMessage2& aMessage,

				    				  CLbtContainer& aContainer,

				    				  TInt aClientType,

				    				  CLbtSettingsManager& aSettingsManager );

	public: // From CLbtAOOperationBase

	    /**

	     * Starts the AO operation of serving the request	     

	     *

	     */ 

		void StartOperationL();

		/**

		 * Returns the trigger id of the newly created trigger

		 *

		 * @return the trigger of the newly create trigger

		 */ 

		TLbtTriggerId GetTriggerId();

	private: // helper methods

		/**

		 * Calculates the hysteresis area 

		 *

		 * @param[in] the trigger for which the hysteresis

		 * are has to be created

		 * @return the hysteresis area

		 */

		TInt CalculateHysteresisAreaForTrigger(CLbtTriggerEntry& aTrigger);

		/**

		 * Handles create trigger operation

		 *

		 */

		void CreateTriggerL();

		/**

		 * Checks if the system cap for trigger will be satisfied if one 

		 * more trigger is created.

		 *

		 * @return ETrue if one more trigger can be created, EFalse otherwise

		 */

		TBool CheckTriggerCap();

		/**

		 * Calculates the Rectangular approximation of a trigger

		 * with a circular trigger area.

		 */

		void CalculateRectangularArea(

                        CLbtExtendedTriggerInfo::TLbtTriggerRectArea& aArea,

                        CLbtGeoCircle* aCircle);

    protected: // From CActive

    	void RunL();

    	void DoCancel();

	private: // Data

		// Refernce to triggering settings manager

		CLbtSettingsManager& iSettingsManager;

		// Reference to container trigger entry

		CLbtContainerTriggerEntry* iContainerTriggerEntry;

	};

#endif // C_LBTCREATETRIGGERAOOPEATION_H