locationtriggering/ltserver/ltserverlogic/inc/lbtcreatetriggeraooperation.h
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     1 /*
       
     2 * Copyright (c) 2006,2007 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Active Object operation for serving server logic requests
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 #ifndef C_LBTCREATETRIGGERAOOPEATION_H
       
    21 #define C_LBTCREATETRIGGERAOOPEATION_H
       
    22 
       
    23 // INCLUDE FILES
       
    24 #include <e32base.h>
       
    25 #include "lbtcontainerextendedtriggerinfo.h"
       
    26 #include "lbtaooperationbase.h"
       
    27 
       
    28 
       
    29 // FORWARD DECLARATIONS
       
    30 class MLbtAOObserver;
       
    31 class RMessage2;
       
    32 
       
    33 // FORWARD DECLARATIONS
       
    34 class CLbtTriggerEntry;
       
    35 class CLbtContainer;
       
    36 class CLbtSettingsManager;
       
    37 class CLbtContainerTriggerEntry;
       
    38 class CLbtGeoCircle;
       
    39 
       
    40 /**
       
    41  * Class declaration of active object operation
       
    42  * to service client requests comming from
       
    43  * server core. The IPC messages are provided to
       
    44  * this class to service the request asynchronously
       
    45  *
       
    46  * @since S60 v4.0
       
    47  */
       
    48 class CLbtCreateTriggerAOOperation : public CLbtAOOperationBase
       
    49 	{
       
    50 	public:
       
    51 	
       
    52 		/**
       
    53 	     * Instantiates a new object of 
       
    54 	     * CLbtCreateTriggerAOOperation
       
    55 	     *
       
    56 	     * @param[in] aObserver reference to the active
       
    57 	     * object observer
       
    58 	     * @param[in] aMessage the IPC request which the active 
       
    59 	     * object has to service. The active object takes responsibility
       
    60 	     * of completing this IPC request
       
    61 	     * @param aContainer reference to the container which holds
       
    62 	     * the reference to the logic processor
       
    63 	     */
       
    64 	    static CLbtCreateTriggerAOOperation* NewL( MLbtAOObserver& aObserver,
       
    65 				    							   const RMessage2& aMessage,
       
    66 				    							   CLbtContainer& aContainer,
       
    67 				    							   TInt aClientType,
       
    68 				    							   CLbtSettingsManager& aSettingsManager );
       
    69 				    
       
    70 	    /**
       
    71 	     * Destructor
       
    72 	     *
       
    73 	     */
       
    74 	    ~CLbtCreateTriggerAOOperation();
       
    75 	    
       
    76 	    /**
       
    77 		 * Cancels create trigger operation
       
    78 		 *
       
    79 		 */
       
    80 		void CancelCreateTrigger();
       
    81 	    
       
    82 	private:
       
    83 	
       
    84 		/**
       
    85 	     * 2nd phase constuctor for instantiating member variables
       
    86 	     *
       
    87 	     */
       
    88 		void ConstructL();
       
    89 		
       
    90 		/**
       
    91 	     * Default C++ Constructor
       
    92 	     *
       
    93 	     * @param[in] aObserver reference to the active object observer
       
    94 	     * @param[in] aMessage the IPC request which the active 
       
    95 	     * object has to service. The active object takes responsibility
       
    96 	     * of completing this IPC request
       
    97 	     * @param aContainer reference to the container which holds
       
    98 	     * the reference to the logic processor
       
    99 	     */
       
   100 	    CLbtCreateTriggerAOOperation( MLbtAOObserver& aObserver, 
       
   101 				    				  const RMessage2& aMessage,
       
   102 				    				  CLbtContainer& aContainer,
       
   103 				    				  TInt aClientType,
       
   104 				    				  CLbtSettingsManager& aSettingsManager );
       
   105 	
       
   106 	public: // From CLbtAOOperationBase
       
   107 	
       
   108 	    /**
       
   109 	     * Starts the AO operation of serving the request	     
       
   110 	     *
       
   111 	     */ 
       
   112 		void StartOperationL();
       
   113 		
       
   114 		/**
       
   115 		 * Returns the trigger id of the newly created trigger
       
   116 		 *
       
   117 		 * @return the trigger of the newly create trigger
       
   118 		 */ 
       
   119 		TLbtTriggerId GetTriggerId();
       
   120 	
       
   121 	private: // helper methods
       
   122 		/**
       
   123 		 * Calculates the hysteresis area 
       
   124 		 *
       
   125 		 * @param[in] the trigger for which the hysteresis
       
   126 		 * are has to be created
       
   127 		 * @return the hysteresis area
       
   128 		 */
       
   129 		TInt CalculateHysteresisAreaForTrigger(CLbtTriggerEntry& aTrigger);
       
   130 		
       
   131 		/**
       
   132 		 * Handles create trigger operation
       
   133 		 *
       
   134 		 */
       
   135 		void CreateTriggerL();
       
   136 		
       
   137 		/**
       
   138 		 * Checks if the system cap for trigger will be satisfied if one 
       
   139 		 * more trigger is created.
       
   140 		 *
       
   141 		 * @return ETrue if one more trigger can be created, EFalse otherwise
       
   142 		 */
       
   143 		TBool CheckTriggerCap();
       
   144 		
       
   145 		/**
       
   146 		 * Calculates the Rectangular approximation of a trigger
       
   147 		 * with a circular trigger area.
       
   148 		 */
       
   149 		void CalculateRectangularArea(
       
   150                         CLbtExtendedTriggerInfo::TLbtTriggerRectArea& aArea,
       
   151                         CLbtGeoCircle* aCircle);
       
   152 
       
   153 		    
       
   154     protected: // From CActive
       
   155     	void RunL();
       
   156     	void DoCancel();
       
   157 
       
   158 	private: // Data
       
   159 
       
   160 		// Refernce to triggering settings manager
       
   161 		CLbtSettingsManager& iSettingsManager;
       
   162 		
       
   163 				
       
   164 		// Reference to container trigger entry
       
   165 		CLbtContainerTriggerEntry* iContainerTriggerEntry;
       
   166 		
       
   167 	};
       
   168 
       
   169 #endif // C_LBTCREATETRIGGERAOOPEATION_H